[6679c122] | 1 | #!/usr/local/bin/python |
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| 2 | |
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| 3 | import os,sys |
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| 4 | |
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| 5 | import re |
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| 6 | import random |
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| 7 | import string |
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| 8 | import subprocess |
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| 9 | import tempfile |
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| 10 | import copy |
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[eee2b2e] | 11 | import pickle |
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[c971895] | 12 | import logging |
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[79b6596] | 13 | import signal |
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| 14 | import time |
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[6679c122] | 15 | |
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[3df9b33] | 16 | import os.path |
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| 17 | |
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[3441fe3] | 18 | import traceback |
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[c971895] | 19 | # For parsing visualization output and splitter output |
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| 20 | import xml.parsers.expat |
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[3441fe3] | 21 | |
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[6c57fe9] | 22 | from threading import Lock, Thread, Condition |
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| 23 | from subprocess import call, Popen, PIPE |
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[c573278] | 24 | from string import join |
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[6679c122] | 25 | |
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[db6b092] | 26 | from urlparse import urlparse |
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| 27 | from urllib2 import urlopen |
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| 28 | |
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[ec4fb42] | 29 | from util import * |
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[51cc9df] | 30 | from fedid import fedid, generate_fedid |
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[9460b1e] | 31 | from remote_service import xmlrpc_handler, soap_handler, service_caller |
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[c971895] | 32 | from service_error import service_error |
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[2761484] | 33 | from synch_store import synch_store |
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[73e7f5c] | 34 | from experiment_partition import experiment_partition |
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[1d73342] | 35 | from experiment_control_legacy import experiment_control_legacy |
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[7206e5a] | 36 | from authorizer import abac_authorizer |
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[faea607] | 37 | from thread_pool import thread_pool, pooled_thread |
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[ab3d6c5] | 38 | from experiment_info import experiment_info, allocation_info, federated_service |
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[6679c122] | 39 | |
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[db6b092] | 40 | import topdl |
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[f07fa49] | 41 | import list_log |
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[db6b092] | 42 | from ip_allocator import ip_allocator |
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| 43 | from ip_addr import ip_addr |
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| 44 | |
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[11a08b0] | 45 | |
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| 46 | class nullHandler(logging.Handler): |
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| 47 | def emit(self, record): pass |
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| 48 | |
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| 49 | fl = logging.getLogger("fedd.experiment_control") |
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| 50 | fl.addHandler(nullHandler()) |
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| 51 | |
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[1d73342] | 52 | class experiment_control_local(experiment_control_legacy): |
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[0ea11af] | 53 | """ |
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| 54 | Control of experiments that this system can directly access. |
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| 55 | |
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| 56 | Includes experiment creation, termination and information dissemination. |
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| 57 | Thred safe. |
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| 58 | """ |
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[79b6596] | 59 | |
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| 60 | class ssh_cmd_timeout(RuntimeError): pass |
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[6679c122] | 61 | |
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[f069052] | 62 | call_RequestAccess = service_caller('RequestAccess') |
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| 63 | call_ReleaseAccess = service_caller('ReleaseAccess') |
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[cc8d8e9] | 64 | call_StartSegment = service_caller('StartSegment') |
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[db974ed] | 65 | call_TerminateSegment = service_caller('TerminateSegment') |
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[6e33086] | 66 | call_InfoSegment = service_caller('InfoSegment') |
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[5f6929a] | 67 | call_Ns2Topdl = service_caller('Ns2Topdl') |
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[058f58e] | 68 | |
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[3f6bc5f] | 69 | def __init__(self, config=None, auth=None): |
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[866c983] | 70 | """ |
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| 71 | Intialize the various attributes, most from the config object |
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| 72 | """ |
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| 73 | |
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| 74 | def parse_tarfile_list(tf): |
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| 75 | """ |
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| 76 | Parse a tarfile list from the configuration. This is a set of |
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| 77 | paths and tarfiles separated by spaces. |
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| 78 | """ |
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| 79 | rv = [ ] |
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| 80 | if tf is not None: |
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| 81 | tl = tf.split() |
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| 82 | while len(tl) > 1: |
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| 83 | p, t = tl[0:2] |
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| 84 | del tl[0:2] |
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| 85 | rv.append((p, t)) |
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| 86 | return rv |
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| 87 | |
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[f07fa49] | 88 | self.list_log = list_log.list_log |
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[866c983] | 89 | |
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| 90 | self.cert_file = config.get("experiment_control", "cert_file") |
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| 91 | if self.cert_file: |
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| 92 | self.cert_pwd = config.get("experiment_control", "cert_pwd") |
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| 93 | else: |
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| 94 | self.cert_file = config.get("globals", "cert_file") |
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| 95 | self.cert_pwd = config.get("globals", "cert_pwd") |
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| 96 | |
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| 97 | self.trusted_certs = config.get("experiment_control", "trusted_certs") \ |
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| 98 | or config.get("globals", "trusted_certs") |
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| 99 | |
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[6c57fe9] | 100 | self.repodir = config.get("experiment_control", "repodir") |
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[7183b48] | 101 | self.repo_url = config.get("experiment_control", "repo_url", |
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| 102 | "https://users.isi.deterlab.net:23235"); |
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[cc8d8e9] | 103 | |
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[866c983] | 104 | self.exp_stem = "fed-stem" |
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| 105 | self.log = logging.getLogger("fedd.experiment_control") |
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| 106 | set_log_level(config, "experiment_control", self.log) |
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| 107 | self.muxmax = 2 |
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[35a4c01] | 108 | self.nthreads = 10 |
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[866c983] | 109 | self.randomize_experiments = False |
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| 110 | |
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| 111 | self.splitter = None |
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| 112 | self.ssh_keygen = "/usr/bin/ssh-keygen" |
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| 113 | self.ssh_identity_file = None |
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| 114 | |
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| 115 | |
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| 116 | self.debug = config.getboolean("experiment_control", "create_debug") |
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[69692a9] | 117 | self.cleanup = not config.getboolean("experiment_control", |
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| 118 | "leave_tmpfiles") |
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[866c983] | 119 | self.state_filename = config.get("experiment_control", |
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| 120 | "experiment_state") |
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[2761484] | 121 | self.store_filename = config.get("experiment_control", |
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| 122 | "synch_store") |
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| 123 | self.store_url = config.get("experiment_control", "store_url") |
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[5f6929a] | 124 | self.splitter_url = config.get("experiment_control", "ns2topdl_uri") |
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[866c983] | 125 | self.fedkit = parse_tarfile_list(\ |
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| 126 | config.get("experiment_control", "fedkit")) |
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| 127 | self.gatewaykit = parse_tarfile_list(\ |
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| 128 | config.get("experiment_control", "gatewaykit")) |
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| 129 | accessdb_file = config.get("experiment_control", "accessdb") |
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| 130 | |
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[175b444] | 131 | dt = config.get("experiment_control", "direct_transit") |
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[7206e5a] | 132 | self.auth_type = config.get('experiment_control', 'auth_type') \ |
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| 133 | or 'legacy' |
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| 134 | self.auth_dir = config.get('experiment_control', 'auth_dir') |
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[6e33086] | 135 | # XXX: document this! |
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| 136 | self.info_cache_limit = \ |
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| 137 | config.getint('experiment_control', 'info_cache', 600) |
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[139e2e2] | 138 | if dt: self.direct_transit = [ tb.strip() for tb in dt.split(",")] |
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| 139 | else: self.direct_transit = [ ] |
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[866c983] | 140 | # NB for internal master/slave ops, not experiment setup |
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| 141 | self.ssh_type = config.get("experiment_control", "sshkeytype", "rsa") |
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[ca489e8] | 142 | |
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[db6b092] | 143 | self.overrides = set([]) |
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| 144 | ovr = config.get('experiment_control', 'overrides') |
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| 145 | if ovr: |
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| 146 | for o in ovr.split(","): |
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| 147 | o = o.strip() |
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| 148 | if o.startswith('fedid:'): o = o[len('fedid:'):] |
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| 149 | self.overrides.add(fedid(hexstr=o)) |
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[ca489e8] | 150 | |
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[866c983] | 151 | self.state = { } |
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| 152 | self.state_lock = Lock() |
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| 153 | self.tclsh = "/usr/local/bin/otclsh" |
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[5f6929a] | 154 | self.tcl_splitter = config.get("ns2topdl", "tcl_splitter") or \ |
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[866c983] | 155 | config.get("experiment_control", "tcl_splitter", |
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| 156 | "/usr/testbed/lib/ns2ir/parse.tcl") |
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| 157 | mapdb_file = config.get("experiment_control", "mapdb") |
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| 158 | self.trace_file = sys.stderr |
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| 159 | |
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| 160 | self.def_expstart = \ |
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| 161 | "sudo -H /bin/sh /usr/local/federation/bin/federate.sh >& " +\ |
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| 162 | "/tmp/federate"; |
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| 163 | self.def_mexpstart = "sudo -H /usr/local/federation/bin/make_hosts " +\ |
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| 164 | "FEDDIR/hosts"; |
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| 165 | self.def_gwstart = \ |
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| 166 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF>& " +\ |
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| 167 | "/tmp/bridge.log"; |
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| 168 | self.def_mgwstart = \ |
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| 169 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF >& " +\ |
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| 170 | "/tmp/bridge.log"; |
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| 171 | self.def_gwimage = "FBSD61-TUNNEL2"; |
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| 172 | self.def_gwtype = "pc"; |
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| 173 | self.local_access = { } |
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| 174 | |
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[7206e5a] | 175 | if self.auth_type == 'legacy': |
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| 176 | if auth: |
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| 177 | self.auth = auth |
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| 178 | else: |
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| 179 | self.log.error( "[access]: No authorizer initialized, " +\ |
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| 180 | "creating local one.") |
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| 181 | auth = authorizer() |
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[5ecb9a3] | 182 | self.get_access = self.legacy_get_access |
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[7206e5a] | 183 | elif self.auth_type == 'abac': |
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| 184 | self.auth = abac_authorizer(load=self.auth_dir) |
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| 185 | else: |
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| 186 | raise service_error(service_error.internal, |
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| 187 | "Unknown auth_type: %s" % self.auth_type) |
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[866c983] | 188 | |
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| 189 | if mapdb_file: |
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| 190 | self.read_mapdb(mapdb_file) |
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| 191 | else: |
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| 192 | self.log.warn("[experiment_control] No testbed map, using defaults") |
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| 193 | self.tbmap = { |
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| 194 | 'deter':'https://users.isi.deterlab.net:23235', |
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| 195 | 'emulab':'https://users.isi.deterlab.net:23236', |
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| 196 | 'ucb':'https://users.isi.deterlab.net:23237', |
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| 197 | } |
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| 198 | |
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| 199 | if accessdb_file: |
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| 200 | self.read_accessdb(accessdb_file) |
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| 201 | else: |
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| 202 | raise service_error(service_error.internal, |
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| 203 | "No accessdb specified in config") |
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| 204 | |
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| 205 | # Grab saved state. OK to do this w/o locking because it's read only |
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| 206 | # and only one thread should be in existence that can see self.state at |
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| 207 | # this point. |
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| 208 | if self.state_filename: |
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| 209 | self.read_state() |
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| 210 | |
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[2761484] | 211 | if self.store_filename: |
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| 212 | self.read_store() |
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| 213 | else: |
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| 214 | self.log.warning("No saved synch store") |
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| 215 | self.synch_store = synch_store |
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| 216 | |
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[866c983] | 217 | # Dispatch tables |
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| 218 | self.soap_services = {\ |
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[a3ad8bd] | 219 | 'New': soap_handler('New', self.new_experiment), |
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[e19b75c] | 220 | 'Create': soap_handler('Create', self.create_experiment), |
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[866c983] | 221 | 'Vtopo': soap_handler('Vtopo', self.get_vtopo), |
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| 222 | 'Vis': soap_handler('Vis', self.get_vis), |
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| 223 | 'Info': soap_handler('Info', self.get_info), |
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[65f3f29] | 224 | 'MultiInfo': soap_handler('MultiInfo', self.get_multi_info), |
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[866c983] | 225 | 'Terminate': soap_handler('Terminate', |
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[e19b75c] | 226 | self.terminate_experiment), |
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[2761484] | 227 | 'GetValue': soap_handler('GetValue', self.GetValue), |
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| 228 | 'SetValue': soap_handler('SetValue', self.SetValue), |
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[866c983] | 229 | } |
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| 230 | |
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| 231 | self.xmlrpc_services = {\ |
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[a3ad8bd] | 232 | 'New': xmlrpc_handler('New', self.new_experiment), |
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[e19b75c] | 233 | 'Create': xmlrpc_handler('Create', self.create_experiment), |
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[866c983] | 234 | 'Vtopo': xmlrpc_handler('Vtopo', self.get_vtopo), |
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| 235 | 'Vis': xmlrpc_handler('Vis', self.get_vis), |
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| 236 | 'Info': xmlrpc_handler('Info', self.get_info), |
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[65f3f29] | 237 | 'MultiInfo': xmlrpc_handler('MultiInfo', self.get_multi_info), |
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[866c983] | 238 | 'Terminate': xmlrpc_handler('Terminate', |
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[e19b75c] | 239 | self.terminate_experiment), |
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[2761484] | 240 | 'GetValue': xmlrpc_handler('GetValue', self.GetValue), |
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| 241 | 'SetValue': xmlrpc_handler('SetValue', self.SetValue), |
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[866c983] | 242 | } |
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[19cc408] | 243 | |
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[a97394b] | 244 | # Call while holding self.state_lock |
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[eee2b2e] | 245 | def write_state(self): |
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[866c983] | 246 | """ |
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| 247 | Write a new copy of experiment state after copying the existing state |
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| 248 | to a backup. |
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| 249 | |
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| 250 | State format is a simple pickling of the state dictionary. |
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| 251 | """ |
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| 252 | if os.access(self.state_filename, os.W_OK): |
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[40dd8c1] | 253 | copy_file(self.state_filename, \ |
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| 254 | "%s.bak" % self.state_filename) |
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[866c983] | 255 | try: |
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| 256 | f = open(self.state_filename, 'w') |
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| 257 | pickle.dump(self.state, f) |
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[d3c8759] | 258 | except EnvironmentError, e: |
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[866c983] | 259 | self.log.error("Can't write file %s: %s" % \ |
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| 260 | (self.state_filename, e)) |
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| 261 | except pickle.PicklingError, e: |
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| 262 | self.log.error("Pickling problem: %s" % e) |
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| 263 | except TypeError, e: |
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| 264 | self.log.error("Pickling problem (TypeError): %s" % e) |
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[eee2b2e] | 265 | |
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[2761484] | 266 | @staticmethod |
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[29d5f7c] | 267 | def get_alloc_ids(exp): |
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[2761484] | 268 | """ |
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[29d5f7c] | 269 | Used by read_store and read state. This used to be worse. |
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[2761484] | 270 | """ |
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| 271 | |
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[29d5f7c] | 272 | return [ a.allocID for a in exp.get_all_allocations() ] |
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| 273 | |
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[2761484] | 274 | |
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[a97394b] | 275 | # Call while holding self.state_lock |
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[eee2b2e] | 276 | def read_state(self): |
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[866c983] | 277 | """ |
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| 278 | Read a new copy of experiment state. Old state is overwritten. |
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| 279 | |
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| 280 | State format is a simple pickling of the state dictionary. |
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| 281 | """ |
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[cc8d8e9] | 282 | |
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[866c983] | 283 | try: |
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| 284 | f = open(self.state_filename, "r") |
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| 285 | self.state = pickle.load(f) |
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| 286 | self.log.debug("[read_state]: Read state from %s" % \ |
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| 287 | self.state_filename) |
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[d3c8759] | 288 | except EnvironmentError, e: |
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[866c983] | 289 | self.log.warning("[read_state]: No saved state: Can't open %s: %s"\ |
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| 290 | % (self.state_filename, e)) |
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| 291 | except pickle.UnpicklingError, e: |
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| 292 | self.log.warning(("[read_state]: No saved state: " + \ |
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| 293 | "Unpickling failed: %s") % e) |
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| 294 | |
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[cc8d8e9] | 295 | for s in self.state.values(): |
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[866c983] | 296 | try: |
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[cc8d8e9] | 297 | |
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[29d5f7c] | 298 | eid = s.fedid |
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[cc8d8e9] | 299 | if eid : |
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[7206e5a] | 300 | if self.auth_type == 'legacy': |
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| 301 | # XXX: legacy |
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| 302 | # Give the owner rights to the experiment |
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[29d5f7c] | 303 | #self.auth.set_attribute(s['owner'], eid) |
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[7206e5a] | 304 | # And holders of the eid as well |
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| 305 | self.auth.set_attribute(eid, eid) |
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| 306 | # allow overrides to control experiments as well |
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| 307 | for o in self.overrides: |
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| 308 | self.auth.set_attribute(o, eid) |
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| 309 | # Set permissions to allow reading of the software |
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| 310 | # repo, if any, as well. |
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| 311 | for a in self.get_alloc_ids(s): |
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| 312 | self.auth.set_attribute(a, 'repo/%s' % eid) |
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[cc8d8e9] | 313 | else: |
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| 314 | raise KeyError("No experiment id") |
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[866c983] | 315 | except KeyError, e: |
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| 316 | self.log.warning("[read_state]: State ownership or identity " +\ |
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| 317 | "misformatted in %s: %s" % (self.state_filename, e)) |
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[4064742] | 318 | |
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| 319 | |
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| 320 | def read_accessdb(self, accessdb_file): |
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[866c983] | 321 | """ |
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| 322 | Read the mapping from fedids that can create experiments to their name |
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| 323 | in the 3-level access namespace. All will be asserted from this |
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| 324 | testbed and can include the local username and porject that will be |
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| 325 | asserted on their behalf by this fedd. Each fedid is also added to the |
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| 326 | authorization system with the "create" attribute. |
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| 327 | """ |
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| 328 | self.accessdb = {} |
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| 329 | # These are the regexps for parsing the db |
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| 330 | name_expr = "[" + string.ascii_letters + string.digits + "\.\-]+" |
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| 331 | project_line = re.compile("^\s*fedid:([" + string.hexdigits + "]+)"+ \ |
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| 332 | "\s*->\(\s*("+name_expr+")\s*,\s*("+name_expr+")\s*\)\s*$") |
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| 333 | user_line = re.compile("^\s*fedid:([" + string.hexdigits + "]+)"+ \ |
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| 334 | "\s*->\s*(" + name_expr + ")\s*$") |
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| 335 | lineno = 0 |
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| 336 | |
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| 337 | # Parse the mappings and store in self.authdb, a dict of |
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| 338 | # fedid -> (proj, user) |
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| 339 | try: |
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| 340 | f = open(accessdb_file, "r") |
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| 341 | for line in f: |
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| 342 | lineno += 1 |
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| 343 | line = line.strip() |
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| 344 | if len(line) == 0 or line.startswith('#'): |
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| 345 | continue |
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| 346 | m = project_line.match(line) |
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| 347 | if m: |
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| 348 | fid = fedid(hexstr=m.group(1)) |
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| 349 | project, user = m.group(2,3) |
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| 350 | if not self.accessdb.has_key(fid): |
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| 351 | self.accessdb[fid] = [] |
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| 352 | self.accessdb[fid].append((project, user)) |
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| 353 | continue |
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| 354 | |
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| 355 | m = user_line.match(line) |
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| 356 | if m: |
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| 357 | fid = fedid(hexstr=m.group(1)) |
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| 358 | project = None |
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| 359 | user = m.group(2) |
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| 360 | if not self.accessdb.has_key(fid): |
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| 361 | self.accessdb[fid] = [] |
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| 362 | self.accessdb[fid].append((project, user)) |
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| 363 | continue |
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| 364 | self.log.warn("[experiment_control] Error parsing access " +\ |
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| 365 | "db %s at line %d" % (accessdb_file, lineno)) |
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[d3c8759] | 366 | except EnvironmentError: |
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[866c983] | 367 | raise service_error(service_error.internal, |
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[05fceef] | 368 | ("Error opening/reading %s as experiment " +\ |
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| 369 | "control accessdb") % accessdb_file) |
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[866c983] | 370 | f.close() |
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| 371 | |
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| 372 | # Initialize the authorization attributes |
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[7206e5a] | 373 | # XXX: legacy |
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| 374 | if self.auth_type == 'legacy': |
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| 375 | for fid in self.accessdb.keys(): |
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| 376 | self.auth.set_attribute(fid, 'create') |
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| 377 | self.auth.set_attribute(fid, 'new') |
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[34bc05c] | 378 | |
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| 379 | def read_mapdb(self, file): |
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[866c983] | 380 | """ |
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| 381 | Read a simple colon separated list of mappings for the |
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| 382 | label-to-testbed-URL mappings. Clears or creates self.tbmap. |
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| 383 | """ |
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| 384 | |
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| 385 | self.tbmap = { } |
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| 386 | lineno =0 |
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| 387 | try: |
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| 388 | f = open(file, "r") |
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| 389 | for line in f: |
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| 390 | lineno += 1 |
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| 391 | line = line.strip() |
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| 392 | if line.startswith('#') or len(line) == 0: |
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| 393 | continue |
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| 394 | try: |
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| 395 | label, url = line.split(':', 1) |
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| 396 | self.tbmap[label] = url |
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| 397 | except ValueError, e: |
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| 398 | self.log.warn("[read_mapdb] Ignored bad line (%d) in " +\ |
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| 399 | "map db: %s %s" % (lineno, line, e)) |
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[d3c8759] | 400 | except EnvironmentError, e: |
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[866c983] | 401 | self.log.warning("[read_mapdb]: No saved map database: Can't " +\ |
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| 402 | "open %s: %s" % (file, e)) |
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[1ec5d4a] | 403 | else: |
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| 404 | f.close() |
---|
[2761484] | 405 | |
---|
| 406 | def read_store(self): |
---|
| 407 | try: |
---|
| 408 | self.synch_store = synch_store() |
---|
| 409 | self.synch_store.load(self.store_filename) |
---|
| 410 | self.log.debug("[read_store]: Read store from %s" % \ |
---|
| 411 | self.store_filename) |
---|
[d3c8759] | 412 | except EnvironmentError, e: |
---|
[2761484] | 413 | self.log.warning("[read_store]: No saved store: Can't open %s: %s"\ |
---|
| 414 | % (self.state_filename, e)) |
---|
| 415 | self.synch_store = synch_store() |
---|
| 416 | |
---|
| 417 | # Set the initial permissions on data in the store. XXX: This ad hoc |
---|
| 418 | # authorization attribute initialization is getting out of hand. |
---|
[7206e5a] | 419 | # XXX: legacy |
---|
| 420 | if self.auth_type == 'legacy': |
---|
| 421 | for k in self.synch_store.all_keys(): |
---|
| 422 | try: |
---|
| 423 | if k.startswith('fedid:'): |
---|
| 424 | fid = fedid(hexstr=k[6:46]) |
---|
| 425 | if self.state.has_key(fid): |
---|
| 426 | for a in self.get_alloc_ids(self.state[fid]): |
---|
| 427 | self.auth.set_attribute(a, k) |
---|
| 428 | except ValueError, e: |
---|
| 429 | self.log.warn("Cannot deduce permissions for %s" % k) |
---|
[2761484] | 430 | |
---|
| 431 | |
---|
| 432 | def write_store(self): |
---|
| 433 | """ |
---|
| 434 | Write a new copy of synch_store after writing current state |
---|
| 435 | to a backup. We use the internal synch_store pickle method to avoid |
---|
| 436 | incinsistent data. |
---|
| 437 | |
---|
| 438 | State format is a simple pickling of the store. |
---|
| 439 | """ |
---|
| 440 | if os.access(self.store_filename, os.W_OK): |
---|
| 441 | copy_file(self.store_filename, \ |
---|
| 442 | "%s.bak" % self.store_filename) |
---|
| 443 | try: |
---|
| 444 | self.synch_store.save(self.store_filename) |
---|
[d3c8759] | 445 | except EnvironmentError, e: |
---|
[2761484] | 446 | self.log.error("Can't write file %s: %s" % \ |
---|
| 447 | (self.store_filename, e)) |
---|
| 448 | except TypeError, e: |
---|
| 449 | self.log.error("Pickling problem (TypeError): %s" % e) |
---|
| 450 | |
---|
[cf0ff4f] | 451 | |
---|
| 452 | def remove_dirs(self, dir): |
---|
| 453 | """ |
---|
| 454 | Remove the directory tree and all files rooted at dir. Log any errors, |
---|
| 455 | but continue. |
---|
| 456 | """ |
---|
| 457 | self.log.debug("[removedirs]: removing %s" % dir) |
---|
| 458 | try: |
---|
| 459 | for path, dirs, files in os.walk(dir, topdown=False): |
---|
| 460 | for f in files: |
---|
| 461 | os.remove(os.path.join(path, f)) |
---|
| 462 | for d in dirs: |
---|
| 463 | os.rmdir(os.path.join(path, d)) |
---|
| 464 | os.rmdir(dir) |
---|
| 465 | except EnvironmentError, e: |
---|
| 466 | self.log.error("Error deleting directory tree in %s" % e); |
---|
| 467 | |
---|
| 468 | @staticmethod |
---|
| 469 | def make_temp_certfile(expcert, tmpdir): |
---|
| 470 | """ |
---|
| 471 | make a protected copy of the access certificate so the experiment |
---|
| 472 | controller can act as the experiment principal. mkstemp is the most |
---|
| 473 | secure way to do that. The directory should be created by |
---|
| 474 | mkdtemp. Return the filename. |
---|
| 475 | """ |
---|
| 476 | if expcert and tmpdir: |
---|
| 477 | try: |
---|
| 478 | certf, certfn = tempfile.mkstemp(suffix=".pem", dir=tmpdir) |
---|
| 479 | f = os.fdopen(certf, 'w') |
---|
| 480 | print >> f, expcert |
---|
| 481 | f.close() |
---|
| 482 | except EnvironmentError, e: |
---|
| 483 | raise service_error(service_error.internal, |
---|
| 484 | "Cannot create temp cert file?") |
---|
| 485 | return certfn |
---|
| 486 | else: |
---|
| 487 | return None |
---|
| 488 | |
---|
[866c983] | 489 | |
---|
[6679c122] | 490 | def generate_ssh_keys(self, dest, type="rsa" ): |
---|
[866c983] | 491 | """ |
---|
| 492 | Generate a set of keys for the gateways to use to talk. |
---|
| 493 | |
---|
| 494 | Keys are of type type and are stored in the required dest file. |
---|
| 495 | """ |
---|
| 496 | valid_types = ("rsa", "dsa") |
---|
| 497 | t = type.lower(); |
---|
| 498 | if t not in valid_types: raise ValueError |
---|
| 499 | cmd = [self.ssh_keygen, '-t', t, '-N', '', '-f', dest] |
---|
| 500 | |
---|
| 501 | try: |
---|
| 502 | trace = open("/dev/null", "w") |
---|
[d3c8759] | 503 | except EnvironmentError: |
---|
[866c983] | 504 | raise service_error(service_error.internal, |
---|
| 505 | "Cannot open /dev/null??"); |
---|
| 506 | |
---|
| 507 | # May raise CalledProcessError |
---|
| 508 | self.log.debug("[generate_ssh_keys]: %s" % " ".join(cmd)) |
---|
[4ea1e22] | 509 | rv = call(cmd, stdout=trace, stderr=trace, close_fds=True) |
---|
[866c983] | 510 | if rv != 0: |
---|
| 511 | raise service_error(service_error.internal, |
---|
| 512 | "Cannot generate nonce ssh keys. %s return code %d" \ |
---|
| 513 | % (self.ssh_keygen, rv)) |
---|
[6679c122] | 514 | |
---|
[3df9b33] | 515 | def generate_seer_certs(self, destdir): |
---|
| 516 | ''' |
---|
| 517 | Create a SEER ca cert and a node cert in destdir/ca.pem and |
---|
| 518 | destdir/node.pem respectively. These will be distributed throughout |
---|
| 519 | the federated experiment. This routine reports errors via |
---|
| 520 | service_errors. |
---|
| 521 | ''' |
---|
| 522 | openssl = '/usr/bin/openssl' |
---|
| 523 | # All the filenames and parameters we need for openssl calls below |
---|
| 524 | ca_key =os.path.join(destdir, 'ca.key') |
---|
| 525 | ca_pem = os.path.join(destdir, 'ca.pem') |
---|
| 526 | node_key =os.path.join(destdir, 'node.key') |
---|
| 527 | node_pem = os.path.join(destdir, 'node.pem') |
---|
| 528 | node_req = os.path.join(destdir, 'node.req') |
---|
| 529 | node_signed = os.path.join(destdir, 'node.signed') |
---|
[9bde415] | 530 | days = '%s' % (365 * 10) |
---|
[95be336] | 531 | serial = '%s' % random.randint(0, 1<<16) |
---|
[3df9b33] | 532 | |
---|
| 533 | try: |
---|
| 534 | # Sequence of calls to create a CA key, create a ca cert, create a |
---|
| 535 | # node key, node signing request, and finally a signed node |
---|
| 536 | # certificate. |
---|
| 537 | sequence = ( |
---|
| 538 | (openssl, 'genrsa', '-out', ca_key, '1024'), |
---|
| 539 | (openssl, 'req', '-new', '-x509', '-key', ca_key, '-out', |
---|
| 540 | ca_pem, '-days', days, '-subj', |
---|
| 541 | '/C=US/ST=CA/O=DETER/OU=fedd/CN=CA' ), |
---|
| 542 | (openssl, 'genrsa', '-out', node_key, '1024'), |
---|
| 543 | (openssl, 'req', '-new', '-key', node_key, '-out', |
---|
| 544 | node_req, '-days', days, '-subj', |
---|
| 545 | '/C=US/ST=CA/O=DETER/OU=fedd/CN=node' ), |
---|
| 546 | (openssl, 'x509', '-CA', ca_pem, '-CAkey', ca_key, |
---|
[95be336] | 547 | '-set_serial', serial, '-req', '-in', node_req, |
---|
[3df9b33] | 548 | '-out', node_signed, '-days', days), |
---|
| 549 | ) |
---|
| 550 | # Do all that stuff; bail if there's an error, and push all the |
---|
| 551 | # output to dev/null. |
---|
| 552 | for cmd in sequence: |
---|
| 553 | trace = open("/dev/null", "w") |
---|
| 554 | rv = call(cmd, stdout=trace, stderr=trace, close_fds=True) |
---|
| 555 | if rv != 0: |
---|
| 556 | raise service_error(service_error.internal, |
---|
| 557 | "Cannot generate SEER certs. %s return code %d" \ |
---|
| 558 | % (' '.join(cmd), rv)) |
---|
| 559 | # Concatinate the node key and signed certificate into node.pem |
---|
| 560 | f = open(node_pem, 'w') |
---|
| 561 | for comp in (node_signed, node_key): |
---|
| 562 | g = open(comp, 'r') |
---|
[9bde415] | 563 | f.write(g.read()) |
---|
[3df9b33] | 564 | g.close() |
---|
| 565 | f.close() |
---|
| 566 | |
---|
| 567 | # Throw out intermediaries. |
---|
[95be336] | 568 | for fn in (ca_key, node_key, node_req, node_signed): |
---|
[3df9b33] | 569 | os.unlink(fn) |
---|
| 570 | |
---|
| 571 | except EnvironmentError, e: |
---|
| 572 | # Any difficulties with the file system wind up here |
---|
| 573 | raise service_error(service_error.internal, |
---|
| 574 | "File error on %s while creating SEER certs: %s" % \ |
---|
| 575 | (e.filename, e.strerror)) |
---|
| 576 | |
---|
| 577 | |
---|
| 578 | |
---|
[0d830de] | 579 | def gentopo(self, str): |
---|
[866c983] | 580 | """ |
---|
[1d73342] | 581 | Generate the topology data structure from the splitter's XML |
---|
[866c983] | 582 | representation of it. |
---|
| 583 | |
---|
| 584 | The topology XML looks like: |
---|
| 585 | <experiment> |
---|
| 586 | <nodes> |
---|
| 587 | <node><vname></vname><ips>ip1:ip2</ips></node> |
---|
| 588 | </nodes> |
---|
| 589 | <lans> |
---|
| 590 | <lan> |
---|
| 591 | <vname></vname><vnode></vnode><ip></ip> |
---|
| 592 | <bandwidth></bandwidth><member>node:port</member> |
---|
| 593 | </lan> |
---|
| 594 | </lans> |
---|
| 595 | """ |
---|
| 596 | class topo_parse: |
---|
| 597 | """ |
---|
| 598 | Parse the topology XML and create the dats structure. |
---|
| 599 | """ |
---|
| 600 | def __init__(self): |
---|
| 601 | # Typing of the subelements for data conversion |
---|
| 602 | self.str_subelements = ('vname', 'vnode', 'ips', 'ip', 'member') |
---|
| 603 | self.int_subelements = ( 'bandwidth',) |
---|
| 604 | self.float_subelements = ( 'delay',) |
---|
| 605 | # The final data structure |
---|
| 606 | self.nodes = [ ] |
---|
| 607 | self.lans = [ ] |
---|
| 608 | self.topo = { \ |
---|
| 609 | 'node': self.nodes,\ |
---|
| 610 | 'lan' : self.lans,\ |
---|
| 611 | } |
---|
| 612 | self.element = { } # Current element being created |
---|
| 613 | self.chars = "" # Last text seen |
---|
| 614 | |
---|
| 615 | def end_element(self, name): |
---|
| 616 | # After each sub element the contents is added to the current |
---|
| 617 | # element or to the appropriate list. |
---|
| 618 | if name == 'node': |
---|
| 619 | self.nodes.append(self.element) |
---|
| 620 | self.element = { } |
---|
| 621 | elif name == 'lan': |
---|
| 622 | self.lans.append(self.element) |
---|
| 623 | self.element = { } |
---|
| 624 | elif name in self.str_subelements: |
---|
| 625 | self.element[name] = self.chars |
---|
| 626 | self.chars = "" |
---|
| 627 | elif name in self.int_subelements: |
---|
| 628 | self.element[name] = int(self.chars) |
---|
| 629 | self.chars = "" |
---|
| 630 | elif name in self.float_subelements: |
---|
| 631 | self.element[name] = float(self.chars) |
---|
| 632 | self.chars = "" |
---|
| 633 | |
---|
| 634 | def found_chars(self, data): |
---|
| 635 | self.chars += data.rstrip() |
---|
| 636 | |
---|
| 637 | |
---|
| 638 | tp = topo_parse(); |
---|
| 639 | parser = xml.parsers.expat.ParserCreate() |
---|
| 640 | parser.EndElementHandler = tp.end_element |
---|
| 641 | parser.CharacterDataHandler = tp.found_chars |
---|
| 642 | |
---|
| 643 | parser.Parse(str) |
---|
| 644 | |
---|
| 645 | return tp.topo |
---|
| 646 | |
---|
[0d830de] | 647 | |
---|
| 648 | def genviz(self, topo): |
---|
[866c983] | 649 | """ |
---|
| 650 | Generate the visualization the virtual topology |
---|
| 651 | """ |
---|
| 652 | |
---|
| 653 | neato = "/usr/local/bin/neato" |
---|
| 654 | # These are used to parse neato output and to create the visualization |
---|
| 655 | # file. |
---|
[0ac1934] | 656 | vis_re = re.compile('^\s*"?([\w\-]+)"?\s+\[.*pos="([\d\.]+),([\d\.]+)"') |
---|
[866c983] | 657 | vis_fmt = "<node><name>%s</name><x>%s</x><y>%s</y><type>" + \ |
---|
| 658 | "%s</type></node>" |
---|
| 659 | |
---|
| 660 | try: |
---|
| 661 | # Node names |
---|
| 662 | nodes = [ n['vname'] for n in topo['node'] ] |
---|
| 663 | topo_lans = topo['lan'] |
---|
[cc8d8e9] | 664 | except KeyError, e: |
---|
| 665 | raise service_error(service_error.internal, "Bad topology: %s" %e) |
---|
[866c983] | 666 | |
---|
| 667 | lans = { } |
---|
| 668 | links = { } |
---|
| 669 | |
---|
| 670 | # Walk through the virtual topology, organizing the connections into |
---|
| 671 | # 2-node connections (links) and more-than-2-node connections (lans). |
---|
| 672 | # When a lan is created, it's added to the list of nodes (there's a |
---|
| 673 | # node in the visualization for the lan). |
---|
| 674 | for l in topo_lans: |
---|
| 675 | if links.has_key(l['vname']): |
---|
| 676 | if len(links[l['vname']]) < 2: |
---|
| 677 | links[l['vname']].append(l['vnode']) |
---|
| 678 | else: |
---|
| 679 | nodes.append(l['vname']) |
---|
| 680 | lans[l['vname']] = links[l['vname']] |
---|
| 681 | del links[l['vname']] |
---|
| 682 | lans[l['vname']].append(l['vnode']) |
---|
| 683 | elif lans.has_key(l['vname']): |
---|
| 684 | lans[l['vname']].append(l['vnode']) |
---|
| 685 | else: |
---|
| 686 | links[l['vname']] = [ l['vnode'] ] |
---|
| 687 | |
---|
| 688 | |
---|
| 689 | # Open up a temporary file for dot to turn into a visualization |
---|
| 690 | try: |
---|
| 691 | df, dotname = tempfile.mkstemp() |
---|
| 692 | dotfile = os.fdopen(df, 'w') |
---|
[d3c8759] | 693 | except EnvironmentError: |
---|
[866c983] | 694 | raise service_error(service_error.internal, |
---|
| 695 | "Failed to open file in genviz") |
---|
| 696 | |
---|
[db6b092] | 697 | try: |
---|
| 698 | dnull = open('/dev/null', 'w') |
---|
[d3c8759] | 699 | except EnvironmentError: |
---|
[db6b092] | 700 | service_error(service_error.internal, |
---|
[886307f] | 701 | "Failed to open /dev/null in genviz") |
---|
| 702 | |
---|
[866c983] | 703 | # Generate a dot/neato input file from the links, nodes and lans |
---|
| 704 | try: |
---|
| 705 | print >>dotfile, "graph G {" |
---|
| 706 | for n in nodes: |
---|
| 707 | print >>dotfile, '\t"%s"' % n |
---|
| 708 | for l in links.keys(): |
---|
| 709 | print >>dotfile, '\t"%s" -- "%s"' % tuple(links[l]) |
---|
| 710 | for l in lans.keys(): |
---|
| 711 | for n in lans[l]: |
---|
| 712 | print >>dotfile, '\t "%s" -- "%s"' % (n,l) |
---|
| 713 | print >>dotfile, "}" |
---|
| 714 | dotfile.close() |
---|
| 715 | except TypeError: |
---|
| 716 | raise service_error(service_error.internal, |
---|
| 717 | "Single endpoint link in vtopo") |
---|
[d3c8759] | 718 | except EnvironmentError: |
---|
[866c983] | 719 | raise service_error(service_error.internal, "Cannot write dot file") |
---|
| 720 | |
---|
| 721 | # Use dot to create a visualization |
---|
[5954004] | 722 | try: |
---|
| 723 | dot = Popen([neato, '-Gstart=rand', '-Gepsilon=0.005', |
---|
| 724 | '-Gmaxiter=2000', '-Gpack=true', dotname], stdout=PIPE, |
---|
| 725 | stderr=dnull, close_fds=True) |
---|
| 726 | except EnvironmentError: |
---|
| 727 | raise service_error(service_error.internal, |
---|
| 728 | "Cannot generate visualization: is graphviz available?") |
---|
[db6b092] | 729 | dnull.close() |
---|
[866c983] | 730 | |
---|
| 731 | # Translate dot to vis format |
---|
| 732 | vis_nodes = [ ] |
---|
| 733 | vis = { 'node': vis_nodes } |
---|
| 734 | for line in dot.stdout: |
---|
| 735 | m = vis_re.match(line) |
---|
| 736 | if m: |
---|
| 737 | vn = m.group(1) |
---|
| 738 | vis_node = {'name': vn, \ |
---|
| 739 | 'x': float(m.group(2)),\ |
---|
| 740 | 'y' : float(m.group(3)),\ |
---|
| 741 | } |
---|
| 742 | if vn in links.keys() or vn in lans.keys(): |
---|
| 743 | vis_node['type'] = 'lan' |
---|
| 744 | else: |
---|
| 745 | vis_node['type'] = 'node' |
---|
| 746 | vis_nodes.append(vis_node) |
---|
| 747 | rv = dot.wait() |
---|
| 748 | |
---|
| 749 | os.remove(dotname) |
---|
[1fed67b] | 750 | # XXX: graphviz seems to use low return codes for warnings, like |
---|
| 751 | # "couldn't find font" |
---|
| 752 | if rv < 2 : return vis |
---|
[866c983] | 753 | else: return None |
---|
[d0ae12d] | 754 | |
---|
[db6b092] | 755 | |
---|
[725c55d] | 756 | def release_access(self, tb, aid, tbmap=None, uri=None, cert_file=None, |
---|
| 757 | cert_pwd=None): |
---|
[e19b75c] | 758 | """ |
---|
| 759 | Release access to testbed through fedd |
---|
| 760 | """ |
---|
[db6b092] | 761 | |
---|
[fd07c48] | 762 | if not uri and tbmap: |
---|
| 763 | uri = tbmap.get(tb, None) |
---|
[e19b75c] | 764 | if not uri: |
---|
[69692a9] | 765 | raise service_error(service_error.server_config, |
---|
[e19b75c] | 766 | "Unknown testbed: %s" % tb) |
---|
[db6b092] | 767 | |
---|
[e19b75c] | 768 | if self.local_access.has_key(uri): |
---|
| 769 | resp = self.local_access[uri].ReleaseAccess(\ |
---|
[29d5f7c] | 770 | { 'ReleaseAccessRequestBody' : |
---|
| 771 | {'allocID': {'fedid': aid}},}, |
---|
[725c55d] | 772 | fedid(file=cert_file)) |
---|
[e19b75c] | 773 | resp = { 'ReleaseAccessResponseBody': resp } |
---|
| 774 | else: |
---|
[29d5f7c] | 775 | resp = self.call_ReleaseAccess(uri, {'allocID': {'fedid': aid} }, |
---|
[725c55d] | 776 | cert_file, cert_pwd, self.trusted_certs) |
---|
[db6b092] | 777 | |
---|
[e19b75c] | 778 | # better error coding |
---|
[db6b092] | 779 | |
---|
[5f6929a] | 780 | def remote_ns2topdl(self, uri, desc): |
---|
[db6b092] | 781 | |
---|
[e19b75c] | 782 | req = { |
---|
| 783 | 'description' : { 'ns2description': desc }, |
---|
[db6b092] | 784 | } |
---|
| 785 | |
---|
[5f6929a] | 786 | r = self.call_Ns2Topdl(uri, req, self.cert_file, self.cert_pwd, |
---|
[e19b75c] | 787 | self.trusted_certs) |
---|
| 788 | |
---|
[5f6929a] | 789 | if r.has_key('Ns2TopdlResponseBody'): |
---|
| 790 | r = r['Ns2TopdlResponseBody'] |
---|
[1dcaff4] | 791 | ed = r.get('experimentdescription', None) |
---|
| 792 | if ed.has_key('topdldescription'): |
---|
| 793 | return topdl.Topology(**ed['topdldescription']) |
---|
[e19b75c] | 794 | else: |
---|
| 795 | raise service_error(service_error.protocol, |
---|
| 796 | "Bad splitter response (no output)") |
---|
| 797 | else: |
---|
| 798 | raise service_error(service_error.protocol, "Bad splitter response") |
---|
[cc8d8e9] | 799 | |
---|
[e19b75c] | 800 | class start_segment: |
---|
[fd556d1] | 801 | def __init__(self, debug=False, log=None, testbed="", cert_file=None, |
---|
[f07fa49] | 802 | cert_pwd=None, trusted_certs=None, caller=None, |
---|
| 803 | log_collector=None): |
---|
[cc8d8e9] | 804 | self.log = log |
---|
| 805 | self.debug = debug |
---|
| 806 | self.cert_file = cert_file |
---|
| 807 | self.cert_pwd = cert_pwd |
---|
| 808 | self.trusted_certs = None |
---|
| 809 | self.caller = caller |
---|
[fd556d1] | 810 | self.testbed = testbed |
---|
[f07fa49] | 811 | self.log_collector = log_collector |
---|
[69692a9] | 812 | self.response = None |
---|
[b4b19c7] | 813 | self.node = { } |
---|
[e83f2f2] | 814 | self.proof = None |
---|
[b4b19c7] | 815 | |
---|
| 816 | def make_map(self, resp): |
---|
[29d5f7c] | 817 | if 'segmentdescription' not in resp or \ |
---|
| 818 | 'topdldescription' not in resp['segmentdescription']: |
---|
| 819 | self.log.warn('No topology returned from startsegment') |
---|
| 820 | return |
---|
| 821 | |
---|
| 822 | top = topdl.Topology( |
---|
| 823 | **resp['segmentdescription']['topdldescription']) |
---|
| 824 | |
---|
| 825 | for e in top.elements: |
---|
| 826 | if isinstance(e, topdl.Computer): |
---|
| 827 | self.node[e.name] = \ |
---|
| 828 | (e.localname, e.status, e.service, e.operation) |
---|
[cc8d8e9] | 829 | |
---|
[43197eb] | 830 | def __call__(self, uri, aid, topo, masters, attrs=None, connInfo=None): |
---|
[cc8d8e9] | 831 | req = { |
---|
| 832 | 'allocID': { 'fedid' : aid }, |
---|
| 833 | 'segmentdescription': { |
---|
| 834 | 'topdldescription': topo.to_dict(), |
---|
| 835 | }, |
---|
| 836 | } |
---|
[e02cd14] | 837 | |
---|
| 838 | if connInfo: |
---|
| 839 | req['connection'] = connInfo |
---|
[43197eb] | 840 | |
---|
| 841 | import_svcs = [ s for m in masters.values() \ |
---|
| 842 | for s in m if self.testbed in s.importers] |
---|
| 843 | |
---|
| 844 | if import_svcs or self.testbed in masters: |
---|
| 845 | req['service'] = [] |
---|
| 846 | |
---|
| 847 | for s in import_svcs: |
---|
| 848 | for r in s.reqs: |
---|
| 849 | sr = copy.deepcopy(r) |
---|
| 850 | sr['visibility'] = 'import'; |
---|
| 851 | req['service'].append(sr) |
---|
| 852 | |
---|
| 853 | for s in masters.get(self.testbed, []): |
---|
| 854 | for r in s.reqs: |
---|
| 855 | sr = copy.deepcopy(r) |
---|
| 856 | sr['visibility'] = 'export'; |
---|
| 857 | req['service'].append(sr) |
---|
| 858 | |
---|
[6c57fe9] | 859 | if attrs: |
---|
| 860 | req['fedAttr'] = attrs |
---|
[cc8d8e9] | 861 | |
---|
[fd556d1] | 862 | try: |
---|
[13e3dd2] | 863 | self.log.debug("Calling StartSegment at %s " % uri) |
---|
[fd556d1] | 864 | r = self.caller(uri, req, self.cert_file, self.cert_pwd, |
---|
| 865 | self.trusted_certs) |
---|
[f07fa49] | 866 | if r.has_key('StartSegmentResponseBody'): |
---|
| 867 | lval = r['StartSegmentResponseBody'].get('allocationLog', |
---|
| 868 | None) |
---|
| 869 | if lval and self.log_collector: |
---|
| 870 | for line in lval.splitlines(True): |
---|
| 871 | self.log_collector.write(line) |
---|
[b4b19c7] | 872 | self.make_map(r['StartSegmentResponseBody']) |
---|
[e83f2f2] | 873 | if 'proof' in r: self.proof = r['proof'] |
---|
[69692a9] | 874 | self.response = r |
---|
[f07fa49] | 875 | else: |
---|
| 876 | raise service_error(service_error.internal, |
---|
| 877 | "Bad response!?: %s" %r) |
---|
[fd556d1] | 878 | return True |
---|
| 879 | except service_error, e: |
---|
| 880 | self.log.error("Start segment failed on %s: %s" % \ |
---|
| 881 | (self.testbed, e)) |
---|
| 882 | return False |
---|
[cc8d8e9] | 883 | |
---|
| 884 | |
---|
[5ae3857] | 885 | |
---|
[e19b75c] | 886 | class terminate_segment: |
---|
[fd556d1] | 887 | def __init__(self, debug=False, log=None, testbed="", cert_file=None, |
---|
[5ae3857] | 888 | cert_pwd=None, trusted_certs=None, caller=None): |
---|
| 889 | self.log = log |
---|
| 890 | self.debug = debug |
---|
| 891 | self.cert_file = cert_file |
---|
| 892 | self.cert_pwd = cert_pwd |
---|
| 893 | self.trusted_certs = None |
---|
| 894 | self.caller = caller |
---|
[fd556d1] | 895 | self.testbed = testbed |
---|
[5ae3857] | 896 | |
---|
| 897 | def __call__(self, uri, aid ): |
---|
| 898 | req = { |
---|
[29d5f7c] | 899 | 'allocID': {'fedid': aid }, |
---|
[5ae3857] | 900 | } |
---|
[fd556d1] | 901 | try: |
---|
| 902 | r = self.caller(uri, req, self.cert_file, self.cert_pwd, |
---|
| 903 | self.trusted_certs) |
---|
| 904 | return True |
---|
| 905 | except service_error, e: |
---|
| 906 | self.log.error("Terminate segment failed on %s: %s" % \ |
---|
| 907 | (self.testbed, e)) |
---|
| 908 | return False |
---|
[db6b092] | 909 | |
---|
[6e33086] | 910 | class info_segment(start_segment): |
---|
| 911 | def __init__(self, debug=False, log=None, testbed="", cert_file=None, |
---|
| 912 | cert_pwd=None, trusted_certs=None, caller=None, |
---|
| 913 | log_collector=None): |
---|
| 914 | experiment_control_local.start_segment.__init__(self, debug, |
---|
| 915 | log, testbed, cert_file, cert_pwd, trusted_certs, |
---|
| 916 | caller, log_collector) |
---|
| 917 | |
---|
| 918 | def __call__(self, uri, aid): |
---|
| 919 | req = { 'allocID': { 'fedid' : aid } } |
---|
| 920 | |
---|
| 921 | try: |
---|
| 922 | self.log.debug("Calling InfoSegment at %s " % uri) |
---|
| 923 | r = self.caller(uri, req, self.cert_file, self.cert_pwd, |
---|
| 924 | self.trusted_certs) |
---|
| 925 | if r.has_key('InfoSegmentResponseBody'): |
---|
| 926 | self.make_map(r['InfoSegmentResponseBody']) |
---|
| 927 | if 'proof' in r: self.proof = r['proof'] |
---|
| 928 | self.response = r |
---|
| 929 | else: |
---|
| 930 | raise service_error(service_error.internal, |
---|
| 931 | "Bad response!?: %s" %r) |
---|
| 932 | return True |
---|
| 933 | except service_error, e: |
---|
| 934 | self.log.error("Info segment failed on %s: %s" % \ |
---|
| 935 | (self.testbed, e)) |
---|
| 936 | return False |
---|
| 937 | |
---|
| 938 | def annotate_topology(self, top, data): |
---|
| 939 | def add_new(ann, attr): |
---|
| 940 | for a in ann: |
---|
| 941 | if a not in attr: attr.append(a) |
---|
| 942 | |
---|
| 943 | # Annotate the topology with embedding info |
---|
| 944 | for e in top.elements: |
---|
| 945 | if isinstance(e, topdl.Computer): |
---|
| 946 | for s in data: |
---|
| 947 | ann = s.node.get(e.name, None) |
---|
| 948 | if ann is not None: |
---|
| 949 | add_new(ann[0], e.localname) |
---|
| 950 | e.status = ann[1] |
---|
| 951 | add_new(ann[2], e.service) |
---|
| 952 | add_new(ann[3], e.operation) |
---|
| 953 | break |
---|
| 954 | |
---|
| 955 | |
---|
| 956 | |
---|
[43197eb] | 957 | def allocate_resources(self, allocated, masters, eid, expid, |
---|
[b4b19c7] | 958 | tbparams, top, topo, tmpdir, alloc_log=None, log_collector=None, |
---|
[c573278] | 959 | attrs=None, connInfo={}, tbmap=None, expcert=None): |
---|
[69692a9] | 960 | |
---|
[cc8d8e9] | 961 | started = { } # Testbeds where a sub-experiment started |
---|
| 962 | # successfully |
---|
| 963 | |
---|
| 964 | # XXX |
---|
| 965 | fail_soft = False |
---|
| 966 | |
---|
[fd07c48] | 967 | if tbmap is None: tbmap = { } |
---|
| 968 | |
---|
[cc8d8e9] | 969 | log = alloc_log or self.log |
---|
| 970 | |
---|
[faea607] | 971 | tp = thread_pool(self.nthreads) |
---|
[cc8d8e9] | 972 | threads = [ ] |
---|
[b4b19c7] | 973 | starters = [ ] |
---|
[cc8d8e9] | 974 | |
---|
[c573278] | 975 | if expcert: |
---|
| 976 | cert = expcert |
---|
| 977 | pw = None |
---|
| 978 | else: |
---|
| 979 | cert = self.cert_file |
---|
[822d31b] | 980 | pw = self.cert_pwd |
---|
[c573278] | 981 | |
---|
[109a32a] | 982 | for tb in allocated.keys(): |
---|
| 983 | # Create and start a thread to start the segment, and save it |
---|
| 984 | # to get the return value later |
---|
[ab847bc] | 985 | tb_attrs = copy.copy(attrs) |
---|
[faea607] | 986 | tp.wait_for_slot() |
---|
[9294673] | 987 | uri = tbparams[tb].uri or tbmap.get(testbed_base(tb), None) |
---|
[ab847bc] | 988 | base, suffix = split_testbed(tb) |
---|
| 989 | if suffix: |
---|
| 990 | tb_attrs.append({'attribute': 'experiment_name', |
---|
[175b444] | 991 | 'value': "%s-%s" % (eid, suffix)}) |
---|
[ab847bc] | 992 | else: |
---|
| 993 | tb_attrs.append({'attribute': 'experiment_name', 'value': eid}) |
---|
[109a32a] | 994 | if not uri: |
---|
| 995 | raise service_error(service_error.internal, |
---|
| 996 | "Unknown testbed %s !?" % tb) |
---|
| 997 | |
---|
[9294673] | 998 | aid = tbparams[tb].allocID |
---|
| 999 | if not aid: |
---|
[cc8d8e9] | 1000 | raise service_error(service_error.internal, |
---|
| 1001 | "No alloc id for testbed %s !?" % tb) |
---|
| 1002 | |
---|
[b4b19c7] | 1003 | s = self.start_segment(log=log, debug=self.debug, |
---|
[c573278] | 1004 | testbed=tb, cert_file=cert, |
---|
| 1005 | cert_pwd=pw, trusted_certs=self.trusted_certs, |
---|
[b4b19c7] | 1006 | caller=self.call_StartSegment, |
---|
| 1007 | log_collector=log_collector) |
---|
| 1008 | starters.append(s) |
---|
[faea607] | 1009 | t = pooled_thread(\ |
---|
[b4b19c7] | 1010 | target=s, name=tb, |
---|
[ab847bc] | 1011 | args=(uri, aid, topo[tb], masters, tb_attrs, connInfo[tb]), |
---|
[faea607] | 1012 | pdata=tp, trace_file=self.trace_file) |
---|
[69692a9] | 1013 | threads.append(t) |
---|
| 1014 | t.start() |
---|
[cc8d8e9] | 1015 | |
---|
[109a32a] | 1016 | # Wait until all finish (keep pinging the log, though) |
---|
| 1017 | mins = 0 |
---|
[dadc4da] | 1018 | revoked = False |
---|
[faea607] | 1019 | while not tp.wait_for_all_done(60.0): |
---|
[109a32a] | 1020 | mins += 1 |
---|
| 1021 | alloc_log.info("Waiting for sub threads (it has been %d mins)" \ |
---|
| 1022 | % mins) |
---|
[dadc4da] | 1023 | if not revoked and \ |
---|
[f52f5df] | 1024 | len([ t.getName() for t in threads if t.rv == False]) > 0: |
---|
[dadc4da] | 1025 | # a testbed has failed. Revoke this experiment's |
---|
| 1026 | # synchronizarion values so that sub experiments will not |
---|
| 1027 | # deadlock waiting for synchronization that will never happen |
---|
| 1028 | self.log.info("A subexperiment has failed to swap in, " + \ |
---|
| 1029 | "revoking synch keys") |
---|
| 1030 | var_key = "fedid:%s" % expid |
---|
| 1031 | for k in self.synch_store.all_keys(): |
---|
| 1032 | if len(k) > 45 and k[0:46] == var_key: |
---|
| 1033 | self.synch_store.revoke_key(k) |
---|
| 1034 | revoked = True |
---|
[69692a9] | 1035 | |
---|
[cc8d8e9] | 1036 | failed = [ t.getName() for t in threads if not t.rv ] |
---|
| 1037 | succeeded = [tb for tb in allocated.keys() if tb not in failed] |
---|
[3132419] | 1038 | |
---|
[cc8d8e9] | 1039 | # If one failed clean up, unless fail_soft is set |
---|
[32e7d93] | 1040 | if failed: |
---|
[cc8d8e9] | 1041 | if not fail_soft: |
---|
[faea607] | 1042 | tp.clear() |
---|
[cc8d8e9] | 1043 | for tb in succeeded: |
---|
| 1044 | # Create and start a thread to stop the segment |
---|
[faea607] | 1045 | tp.wait_for_slot() |
---|
[9294673] | 1046 | uri = tbparams[tb].uri |
---|
[faea607] | 1047 | t = pooled_thread(\ |
---|
[32e7d93] | 1048 | target=self.terminate_segment(log=log, |
---|
[fd556d1] | 1049 | testbed=tb, |
---|
[696a689] | 1050 | cert_file=cert, |
---|
| 1051 | cert_pwd=pw, |
---|
[32e7d93] | 1052 | trusted_certs=self.trusted_certs, |
---|
| 1053 | caller=self.call_TerminateSegment), |
---|
[9294673] | 1054 | args=(uri, tbparams[tb].allocID), |
---|
[32e7d93] | 1055 | name=tb, |
---|
[faea607] | 1056 | pdata=tp, trace_file=self.trace_file) |
---|
[cc8d8e9] | 1057 | t.start() |
---|
[f52f5df] | 1058 | # Wait until all finish (if any are being stopped) |
---|
| 1059 | if succeeded: |
---|
[faea607] | 1060 | tp.wait_for_all_done() |
---|
[cc8d8e9] | 1061 | |
---|
| 1062 | # release the allocations |
---|
| 1063 | for tb in tbparams.keys(): |
---|
[725c55d] | 1064 | try: |
---|
[9294673] | 1065 | self.release_access(tb, tbparams[tb].allocID, |
---|
| 1066 | tbmap=tbmap, uri=tbparams[tb].uri, |
---|
[696a689] | 1067 | cert_file=cert, cert_pwd=pw) |
---|
[725c55d] | 1068 | except service_error, e: |
---|
| 1069 | self.log.warn("Error releasing access: %s" % e.desc) |
---|
[cc8d8e9] | 1070 | # Remove the placeholder |
---|
| 1071 | self.state_lock.acquire() |
---|
[29d5f7c] | 1072 | self.state[eid].status = 'failed' |
---|
[6e33086] | 1073 | self.state[eid].updated() |
---|
[cc8d8e9] | 1074 | if self.state_filename: self.write_state() |
---|
| 1075 | self.state_lock.release() |
---|
[05e8da8] | 1076 | # Remove the repo dir |
---|
| 1077 | self.remove_dirs("%s/%s" %(self.repodir, expid)) |
---|
| 1078 | # Walk up tmpdir, deleting as we go |
---|
| 1079 | if self.cleanup: |
---|
| 1080 | self.remove_dirs(tmpdir) |
---|
| 1081 | else: |
---|
| 1082 | log.debug("[start_experiment]: not removing %s" % tmpdir) |
---|
| 1083 | |
---|
[cc8d8e9] | 1084 | |
---|
| 1085 | log.error("Swap in failed on %s" % ",".join(failed)) |
---|
| 1086 | return |
---|
| 1087 | else: |
---|
[29d5f7c] | 1088 | # Walk through the successes and gather the proofs |
---|
[e83f2f2] | 1089 | proofs = { } |
---|
[b4b19c7] | 1090 | for s in starters: |
---|
[e83f2f2] | 1091 | if s.proof: |
---|
| 1092 | proofs[s.testbed] = s.proof |
---|
[6e33086] | 1093 | self.annotate_topology(top, starters) |
---|
[cc8d8e9] | 1094 | log.info("[start_segment]: Experiment %s active" % eid) |
---|
| 1095 | |
---|
| 1096 | |
---|
| 1097 | # Walk up tmpdir, deleting as we go |
---|
[69692a9] | 1098 | if self.cleanup: |
---|
[05e8da8] | 1099 | self.remove_dirs(tmpdir) |
---|
[69692a9] | 1100 | else: |
---|
| 1101 | log.debug("[start_experiment]: not removing %s" % tmpdir) |
---|
[cc8d8e9] | 1102 | |
---|
[b4b19c7] | 1103 | # Insert the experiment into our state and update the disk copy. |
---|
[cc8d8e9] | 1104 | self.state_lock.acquire() |
---|
[29d5f7c] | 1105 | self.state[expid].status = 'active' |
---|
[cc8d8e9] | 1106 | self.state[eid] = self.state[expid] |
---|
[29d5f7c] | 1107 | self.state[eid].top = top |
---|
[6e33086] | 1108 | self.state[eid].updated() |
---|
[e83f2f2] | 1109 | # Append startup proofs |
---|
[29d5f7c] | 1110 | for f in self.state[eid].get_all_allocations(): |
---|
| 1111 | if f.tb in proofs: |
---|
| 1112 | f.proof.append(proofs[f.tb]) |
---|
[e83f2f2] | 1113 | |
---|
[cc8d8e9] | 1114 | if self.state_filename: self.write_state() |
---|
| 1115 | self.state_lock.release() |
---|
| 1116 | return |
---|
| 1117 | |
---|
| 1118 | |
---|
[895a133] | 1119 | def add_kit(self, e, kit): |
---|
| 1120 | """ |
---|
| 1121 | Add a Software object created from the list of (install, location) |
---|
| 1122 | tuples passed as kit to the software attribute of an object e. We |
---|
| 1123 | do this enough to break out the code, but it's kind of a hack to |
---|
| 1124 | avoid changing the old tuple rep. |
---|
| 1125 | """ |
---|
| 1126 | |
---|
| 1127 | s = [ topdl.Software(install=i, location=l) for i, l in kit] |
---|
| 1128 | |
---|
| 1129 | if isinstance(e.software, list): e.software.extend(s) |
---|
| 1130 | else: e.software = s |
---|
| 1131 | |
---|
[913dc7a] | 1132 | def append_experiment_authorization(self, expid, attrs, |
---|
| 1133 | need_state_lock=True): |
---|
| 1134 | """ |
---|
| 1135 | Append the authorization information to system state |
---|
| 1136 | """ |
---|
| 1137 | |
---|
| 1138 | for p, a in attrs: |
---|
| 1139 | self.auth.set_attribute(p, a) |
---|
| 1140 | self.auth.save() |
---|
| 1141 | |
---|
| 1142 | if need_state_lock: self.state_lock.acquire() |
---|
[29d5f7c] | 1143 | # XXX: really a no op? |
---|
| 1144 | #self.state[expid]['auth'].update(attrs) |
---|
[913dc7a] | 1145 | if self.state_filename: self.write_state() |
---|
| 1146 | if need_state_lock: self.state_lock.release() |
---|
| 1147 | |
---|
[a96d946] | 1148 | def clear_experiment_authorization(self, expid, need_state_lock=True): |
---|
[913dc7a] | 1149 | """ |
---|
| 1150 | Attrs is a set of attribute principal pairs that need to be removed |
---|
| 1151 | from the authenticator. Remove them and save the authenticator. |
---|
| 1152 | """ |
---|
| 1153 | |
---|
| 1154 | if need_state_lock: self.state_lock.acquire() |
---|
[29d5f7c] | 1155 | # XXX: should be a no-op |
---|
| 1156 | #if expid in self.state and 'auth' in self.state[expid]: |
---|
| 1157 | #for p, a in self.state[expid]['auth']: |
---|
| 1158 | #self.auth.unset_attribute(p, a) |
---|
| 1159 | #self.state[expid]['auth'] = set() |
---|
[913dc7a] | 1160 | if self.state_filename: self.write_state() |
---|
| 1161 | if need_state_lock: self.state_lock.release() |
---|
[b67fd22] | 1162 | self.auth.save() |
---|
[913dc7a] | 1163 | |
---|
[895a133] | 1164 | |
---|
[b4b19c7] | 1165 | def create_experiment_state(self, fid, req, expid, expcert, |
---|
[a3ad8bd] | 1166 | state='starting'): |
---|
[895a133] | 1167 | """ |
---|
| 1168 | Create the initial entry in the experiment's state. The expid and |
---|
| 1169 | expcert are the experiment's fedid and certifacte that represents that |
---|
| 1170 | ID, which are installed in the experiment state. If the request |
---|
| 1171 | includes a suggested local name that is used if possible. If the local |
---|
| 1172 | name is already taken by an experiment owned by this user that has |
---|
[a3ad8bd] | 1173 | failed, it is overwritten. Otherwise new letters are added until a |
---|
[895a133] | 1174 | valid localname is found. The generated local name is returned. |
---|
| 1175 | """ |
---|
| 1176 | |
---|
| 1177 | if req.has_key('experimentID') and \ |
---|
| 1178 | req['experimentID'].has_key('localname'): |
---|
| 1179 | overwrite = False |
---|
| 1180 | eid = req['experimentID']['localname'] |
---|
| 1181 | # If there's an old failed experiment here with the same local name |
---|
| 1182 | # and accessible by this user, we'll overwrite it, otherwise we'll |
---|
| 1183 | # fall through and do the collision avoidance. |
---|
| 1184 | old_expid = self.get_experiment_fedid(eid) |
---|
[74572ba] | 1185 | if old_expid: |
---|
| 1186 | users_experiment = True |
---|
| 1187 | try: |
---|
| 1188 | self.check_experiment_access(fid, old_expid) |
---|
| 1189 | except service_error, e: |
---|
| 1190 | if e.code == service_error.access: users_experiment = False |
---|
| 1191 | else: raise e |
---|
| 1192 | if users_experiment: |
---|
| 1193 | self.state_lock.acquire() |
---|
[29d5f7c] | 1194 | status = self.state[eid].status |
---|
[74572ba] | 1195 | if status and status == 'failed': |
---|
| 1196 | # remove the old access attributes |
---|
| 1197 | self.clear_experiment_authorization(eid, |
---|
| 1198 | need_state_lock=False) |
---|
| 1199 | overwrite = True |
---|
| 1200 | del self.state[eid] |
---|
| 1201 | del self.state[old_expid] |
---|
| 1202 | self.state_lock.release() |
---|
[6031c9d] | 1203 | else: |
---|
| 1204 | self.log.info('Experiment %s exists, ' % eid + \ |
---|
| 1205 | 'but this user cannot access it') |
---|
[895a133] | 1206 | self.state_lock.acquire() |
---|
| 1207 | while (self.state.has_key(eid) and not overwrite): |
---|
| 1208 | eid += random.choice(string.ascii_letters) |
---|
| 1209 | # Initial state |
---|
[29d5f7c] | 1210 | self.state[eid] = experiment_info(fedid=expid, localname=eid, |
---|
| 1211 | identity=expcert) |
---|
[895a133] | 1212 | self.state[expid] = self.state[eid] |
---|
[913dc7a] | 1213 | if self.state_filename: self.write_state() |
---|
| 1214 | self.state_lock.release() |
---|
[895a133] | 1215 | else: |
---|
| 1216 | eid = self.exp_stem |
---|
| 1217 | for i in range(0,5): |
---|
| 1218 | eid += random.choice(string.ascii_letters) |
---|
| 1219 | self.state_lock.acquire() |
---|
| 1220 | while (self.state.has_key(eid)): |
---|
| 1221 | eid = self.exp_stem |
---|
| 1222 | for i in range(0,5): |
---|
| 1223 | eid += random.choice(string.ascii_letters) |
---|
| 1224 | # Initial state |
---|
[29d5f7c] | 1225 | self.state[eid] = experiment_info(fedid=expid, localname=eid, |
---|
| 1226 | identity=expcert) |
---|
[895a133] | 1227 | self.state[expid] = self.state[eid] |
---|
[913dc7a] | 1228 | if self.state_filename: self.write_state() |
---|
| 1229 | self.state_lock.release() |
---|
| 1230 | |
---|
| 1231 | # Let users touch the state. Authorize this fid and the expid itself |
---|
| 1232 | # to touch the experiment, as well as allowing th eoverrides. |
---|
| 1233 | self.append_experiment_authorization(eid, |
---|
| 1234 | set([(fid, expid), (expid,expid)] + \ |
---|
| 1235 | [ (o, expid) for o in self.overrides])) |
---|
[895a133] | 1236 | |
---|
| 1237 | return eid |
---|
| 1238 | |
---|
| 1239 | |
---|
| 1240 | def allocate_ips_to_topo(self, top): |
---|
| 1241 | """ |
---|
[69692a9] | 1242 | Add an ip4_address attribute to all the hosts in the topology, based on |
---|
[895a133] | 1243 | the shared substrates on which they sit. An /etc/hosts file is also |
---|
[69692a9] | 1244 | created and returned as a list of hostfiles entries. We also return |
---|
| 1245 | the allocator, because we may need to allocate IPs to portals |
---|
| 1246 | (specifically DRAGON portals). |
---|
[895a133] | 1247 | """ |
---|
| 1248 | subs = sorted(top.substrates, |
---|
| 1249 | cmp=lambda x,y: cmp(len(x.interfaces), len(y.interfaces)), |
---|
| 1250 | reverse=True) |
---|
| 1251 | ips = ip_allocator(int(ip_addr("10.0.0.0")), 2 **24) |
---|
| 1252 | ifs = { } |
---|
| 1253 | hosts = [ ] |
---|
| 1254 | |
---|
| 1255 | for idx, s in enumerate(subs): |
---|
[289ff7e] | 1256 | net_size = len(s.interfaces)+2 |
---|
| 1257 | |
---|
| 1258 | a = ips.allocate(net_size) |
---|
[895a133] | 1259 | if a : |
---|
| 1260 | base, num = a |
---|
[289ff7e] | 1261 | if num < net_size: |
---|
[895a133] | 1262 | raise service_error(service_error.internal, |
---|
| 1263 | "Allocator returned wrong number of IPs??") |
---|
| 1264 | else: |
---|
| 1265 | raise service_error(service_error.req, |
---|
| 1266 | "Cannot allocate IP addresses") |
---|
[062b991] | 1267 | mask = ips.min_alloc |
---|
| 1268 | while mask < net_size: |
---|
| 1269 | mask *= 2 |
---|
[289ff7e] | 1270 | |
---|
[062b991] | 1271 | netmask = ((2**32-1) ^ (mask-1)) |
---|
[895a133] | 1272 | |
---|
| 1273 | base += 1 |
---|
| 1274 | for i in s.interfaces: |
---|
| 1275 | i.attribute.append( |
---|
| 1276 | topdl.Attribute('ip4_address', |
---|
| 1277 | "%s" % ip_addr(base))) |
---|
[289ff7e] | 1278 | i.attribute.append( |
---|
| 1279 | topdl.Attribute('ip4_netmask', |
---|
| 1280 | "%s" % ip_addr(int(netmask)))) |
---|
| 1281 | |
---|
[1e7f268] | 1282 | hname = i.element.name |
---|
[895a133] | 1283 | if ifs.has_key(hname): |
---|
| 1284 | hosts.append("%s\t%s-%s %s-%d" % \ |
---|
| 1285 | (ip_addr(base), hname, s.name, hname, |
---|
| 1286 | ifs[hname])) |
---|
| 1287 | else: |
---|
| 1288 | ifs[hname] = 0 |
---|
| 1289 | hosts.append("%s\t%s-%s %s-%d %s" % \ |
---|
| 1290 | (ip_addr(base), hname, s.name, hname, |
---|
| 1291 | ifs[hname], hname)) |
---|
| 1292 | |
---|
| 1293 | ifs[hname] += 1 |
---|
| 1294 | base += 1 |
---|
[69692a9] | 1295 | return hosts, ips |
---|
[895a133] | 1296 | |
---|
[1d73342] | 1297 | def get_access_to_testbeds(self, testbeds, fid, allocated, |
---|
[725c55d] | 1298 | tbparam, masters, tbmap, expid=None, expcert=None): |
---|
[6e63513] | 1299 | for tb in testbeds: |
---|
[1d73342] | 1300 | self.get_access(tb, tbparam, fid, masters, tbmap, expid, |
---|
[c573278] | 1301 | expcert) |
---|
[6e63513] | 1302 | allocated[tb] = 1 |
---|
| 1303 | |
---|
[1d73342] | 1304 | def get_access(self, tb, tbparam,fid, masters, tbmap, expid=None, |
---|
| 1305 | expcert=None): |
---|
[6e63513] | 1306 | """ |
---|
| 1307 | Get access to testbed through fedd and set the parameters for that tb |
---|
| 1308 | """ |
---|
| 1309 | def get_export_project(svcs): |
---|
| 1310 | """ |
---|
| 1311 | Look through for the list of federated_service for this testbed |
---|
| 1312 | objects for a project_export service, and extract the project |
---|
| 1313 | parameter. |
---|
| 1314 | """ |
---|
| 1315 | |
---|
| 1316 | pe = [s for s in svcs if s.name=='project_export'] |
---|
| 1317 | if len(pe) == 1: |
---|
| 1318 | return pe[0].params.get('project', None) |
---|
| 1319 | elif len(pe) == 0: |
---|
| 1320 | return None |
---|
| 1321 | else: |
---|
| 1322 | raise service_error(service_error.req, |
---|
| 1323 | "More than one project export is not supported") |
---|
| 1324 | |
---|
[d0912be] | 1325 | def add_services(svcs, type, slist, keys): |
---|
[63c6664] | 1326 | """ |
---|
[d0912be] | 1327 | Add the given services to slist. type is import or export. Also |
---|
| 1328 | add a mapping entry from the assigned id to the original service |
---|
| 1329 | record. |
---|
[63c6664] | 1330 | """ |
---|
| 1331 | for i, s in enumerate(svcs): |
---|
| 1332 | idx = '%s%d' % (type, i) |
---|
[d0912be] | 1333 | keys[idx] = s |
---|
[63c6664] | 1334 | sr = {'id': idx, 'name': s.name, 'visibility': type } |
---|
| 1335 | if s.params: |
---|
| 1336 | sr['fedAttr'] = [ { 'attribute': k, 'value': v } \ |
---|
| 1337 | for k, v in s.params.items()] |
---|
| 1338 | slist.append(sr) |
---|
| 1339 | |
---|
[6e63513] | 1340 | uri = tbmap.get(testbed_base(tb), None) |
---|
| 1341 | if not uri: |
---|
| 1342 | raise service_error(service_error.server_config, |
---|
| 1343 | "Unknown testbed: %s" % tb) |
---|
| 1344 | |
---|
| 1345 | export_svcs = masters.get(tb,[]) |
---|
| 1346 | import_svcs = [ s for m in masters.values() \ |
---|
| 1347 | for s in m \ |
---|
| 1348 | if tb in s.importers ] |
---|
| 1349 | |
---|
| 1350 | export_project = get_export_project(export_svcs) |
---|
| 1351 | # Compose the credential list so that IDs come before attributes |
---|
| 1352 | creds = set() |
---|
| 1353 | keys = set() |
---|
[c573278] | 1354 | certs = self.auth.get_creds_for_principal(fid) |
---|
| 1355 | if expid: |
---|
| 1356 | certs.update(self.auth.get_creds_for_principal(expid)) |
---|
| 1357 | for c in certs: |
---|
[6e63513] | 1358 | keys.add(c.issuer_cert()) |
---|
| 1359 | creds.add(c.attribute_cert()) |
---|
| 1360 | creds = list(keys) + list(creds) |
---|
| 1361 | |
---|
[c573278] | 1362 | if expcert: cert, pw = expcert, None |
---|
| 1363 | else: cert, pw = self.cert_file, self.cert_pw |
---|
| 1364 | |
---|
[6e63513] | 1365 | # Request credentials |
---|
| 1366 | req = { |
---|
| 1367 | 'abac_credential': creds, |
---|
| 1368 | } |
---|
| 1369 | # Make the service request from the services we're importing and |
---|
| 1370 | # exporting. Keep track of the export request ids so we can |
---|
| 1371 | # collect the resulting info from the access response. |
---|
| 1372 | e_keys = { } |
---|
| 1373 | if import_svcs or export_svcs: |
---|
[63c6664] | 1374 | slist = [] |
---|
[d0912be] | 1375 | add_services(import_svcs, 'import', slist, e_keys) |
---|
| 1376 | add_services(export_svcs, 'export', slist, e_keys) |
---|
[63c6664] | 1377 | req['service'] = slist |
---|
[6e63513] | 1378 | |
---|
| 1379 | if self.local_access.has_key(uri): |
---|
| 1380 | # Local access call |
---|
| 1381 | req = { 'RequestAccessRequestBody' : req } |
---|
| 1382 | r = self.local_access[uri].RequestAccess(req, |
---|
| 1383 | fedid(file=self.cert_file)) |
---|
| 1384 | r = { 'RequestAccessResponseBody' : r } |
---|
| 1385 | else: |
---|
[c573278] | 1386 | r = self.call_RequestAccess(uri, req, cert, pw, self.trusted_certs) |
---|
[6e63513] | 1387 | |
---|
[725c55d] | 1388 | if r.has_key('RequestAccessResponseBody'): |
---|
| 1389 | # Through to here we have a valid response, not a fault. |
---|
| 1390 | # Access denied is a fault, so something better or worse than |
---|
| 1391 | # access denied has happened. |
---|
| 1392 | r = r['RequestAccessResponseBody'] |
---|
| 1393 | self.log.debug("[get_access] Access granted") |
---|
| 1394 | else: |
---|
| 1395 | raise service_error(service_error.protocol, |
---|
| 1396 | "Bad proxy response") |
---|
[e83f2f2] | 1397 | if 'proof' not in r: |
---|
| 1398 | raise service_error(service_error.protocol, |
---|
| 1399 | "Bad access response (no access proof)") |
---|
[ab3d6c5] | 1400 | |
---|
[9294673] | 1401 | tbparam[tb] = allocation_info(allocID=r['allocID'].get('fedid', None), |
---|
[ab3d6c5] | 1402 | tb=tb, uri=uri, proof=[r['proof']], |
---|
| 1403 | services=masters.get(tb, None)) |
---|
[6e63513] | 1404 | |
---|
| 1405 | # Collect the responses corresponding to the services this testbed |
---|
| 1406 | # exports. These will be the service requests that we will include in |
---|
| 1407 | # the start segment requests (with appropriate visibility values) to |
---|
| 1408 | # import and export the segments. |
---|
| 1409 | for s in r.get('service', []): |
---|
| 1410 | id = s.get('id', None) |
---|
[ab3d6c5] | 1411 | # Note that this attaches the response to the object in the masters |
---|
| 1412 | # data structure. (The e_keys index disappears when this fcn |
---|
| 1413 | # returns) |
---|
[6e63513] | 1414 | if id and id in e_keys: |
---|
| 1415 | e_keys[id].reqs.append(s) |
---|
| 1416 | |
---|
| 1417 | # Add attributes to parameter space. We don't allow attributes to |
---|
| 1418 | # overlay any parameters already installed. |
---|
| 1419 | for a in r.get('fedAttr', []): |
---|
| 1420 | try: |
---|
[9294673] | 1421 | if a['attribute']: |
---|
| 1422 | tbparam[tb].set_attribute(a['attribute'], a['value']) |
---|
[6e63513] | 1423 | except KeyError: |
---|
| 1424 | self.log.error("Bad attribute in response: %s" % a) |
---|
| 1425 | |
---|
| 1426 | |
---|
[7fe81be] | 1427 | def split_topology(self, top, topo, testbeds): |
---|
[895a133] | 1428 | """ |
---|
[e02cd14] | 1429 | Create the sub-topologies that are needed for experiment instantiation. |
---|
[895a133] | 1430 | """ |
---|
| 1431 | for tb in testbeds: |
---|
| 1432 | topo[tb] = top.clone() |
---|
[7fe81be] | 1433 | # copy in for loop allows deletions from the original |
---|
| 1434 | for e in [ e for e in topo[tb].elements]: |
---|
[895a133] | 1435 | etb = e.get_attribute('testbed') |
---|
[7fe81be] | 1436 | # NB: elements without a testbed attribute won't appear in any |
---|
| 1437 | # sub topologies. |
---|
| 1438 | if not etb or etb != tb: |
---|
[895a133] | 1439 | for i in e.interface: |
---|
| 1440 | for s in i.subs: |
---|
| 1441 | try: |
---|
| 1442 | s.interfaces.remove(i) |
---|
| 1443 | except ValueError: |
---|
| 1444 | raise service_error(service_error.internal, |
---|
| 1445 | "Can't remove interface??") |
---|
[7fe81be] | 1446 | topo[tb].elements.remove(e) |
---|
[895a133] | 1447 | topo[tb].make_indices() |
---|
| 1448 | |
---|
[2627eb3] | 1449 | def confirm_software(self, top): |
---|
| 1450 | """ |
---|
| 1451 | Make sure that the software to be loaded in the topo is all available |
---|
| 1452 | before we begin making access requests, etc. This is a subset of |
---|
| 1453 | wrangle_software. |
---|
| 1454 | """ |
---|
| 1455 | pkgs = set([ d for i, d in self.fedkit + self.gatewaykit ]) |
---|
| 1456 | pkgs.update([x.location for e in top.elements for x in e.software]) |
---|
| 1457 | |
---|
| 1458 | for pkg in pkgs: |
---|
| 1459 | loc = pkg |
---|
| 1460 | |
---|
| 1461 | scheme, host, path = urlparse(loc)[0:3] |
---|
| 1462 | dest = os.path.basename(path) |
---|
| 1463 | if not scheme: |
---|
| 1464 | if not loc.startswith('/'): |
---|
| 1465 | loc = "/%s" % loc |
---|
| 1466 | loc = "file://%s" %loc |
---|
| 1467 | # NB: if scheme was found, loc == pkg |
---|
| 1468 | try: |
---|
| 1469 | u = urlopen(loc) |
---|
| 1470 | u.close() |
---|
| 1471 | except Exception, e: |
---|
| 1472 | raise service_error(service_error.req, |
---|
| 1473 | "Cannot open %s: %s" % (loc, e)) |
---|
| 1474 | return True |
---|
| 1475 | |
---|
[895a133] | 1476 | def wrangle_software(self, expid, top, topo, tbparams): |
---|
| 1477 | """ |
---|
| 1478 | Copy software out to the repository directory, allocate permissions and |
---|
| 1479 | rewrite the segment topologies to look for the software in local |
---|
| 1480 | places. |
---|
| 1481 | """ |
---|
| 1482 | |
---|
| 1483 | # Copy the rpms and tarfiles to a distribution directory from |
---|
| 1484 | # which the federants can retrieve them |
---|
| 1485 | linkpath = "%s/software" % expid |
---|
| 1486 | softdir ="%s/%s" % ( self.repodir, linkpath) |
---|
| 1487 | softmap = { } |
---|
[2627eb3] | 1488 | |
---|
| 1489 | # self.fedkit and self.gateway kit are lists of tuples of |
---|
| 1490 | # (install_location, download_location) this extracts the download |
---|
| 1491 | # locations. |
---|
| 1492 | pkgs = set([ d for i, d in self.fedkit + self.gatewaykit ]) |
---|
| 1493 | pkgs.update([x.location for e in top.elements for x in e.software]) |
---|
[895a133] | 1494 | try: |
---|
| 1495 | os.makedirs(softdir) |
---|
[d3c8759] | 1496 | except EnvironmentError, e: |
---|
[895a133] | 1497 | raise service_error( |
---|
| 1498 | "Cannot create software directory: %s" % e) |
---|
| 1499 | # The actual copying. Everything's converted into a url for copying. |
---|
[913dc7a] | 1500 | auth_attrs = set() |
---|
[895a133] | 1501 | for pkg in pkgs: |
---|
| 1502 | loc = pkg |
---|
| 1503 | |
---|
| 1504 | scheme, host, path = urlparse(loc)[0:3] |
---|
| 1505 | dest = os.path.basename(path) |
---|
| 1506 | if not scheme: |
---|
| 1507 | if not loc.startswith('/'): |
---|
| 1508 | loc = "/%s" % loc |
---|
| 1509 | loc = "file://%s" %loc |
---|
[2627eb3] | 1510 | # NB: if scheme was found, loc == pkg |
---|
[895a133] | 1511 | try: |
---|
| 1512 | u = urlopen(loc) |
---|
| 1513 | except Exception, e: |
---|
| 1514 | raise service_error(service_error.req, |
---|
| 1515 | "Cannot open %s: %s" % (loc, e)) |
---|
| 1516 | try: |
---|
| 1517 | f = open("%s/%s" % (softdir, dest) , "w") |
---|
| 1518 | self.log.debug("Writing %s/%s" % (softdir,dest) ) |
---|
| 1519 | data = u.read(4096) |
---|
| 1520 | while data: |
---|
| 1521 | f.write(data) |
---|
| 1522 | data = u.read(4096) |
---|
| 1523 | f.close() |
---|
| 1524 | u.close() |
---|
| 1525 | except Exception, e: |
---|
| 1526 | raise service_error(service_error.internal, |
---|
| 1527 | "Could not copy %s: %s" % (loc, e)) |
---|
| 1528 | path = re.sub("/tmp", "", linkpath) |
---|
| 1529 | # XXX |
---|
| 1530 | softmap[pkg] = \ |
---|
[7183b48] | 1531 | "%s/%s/%s" %\ |
---|
| 1532 | ( self.repo_url, path, dest) |
---|
[895a133] | 1533 | |
---|
[913dc7a] | 1534 | # Allow the individual segments to access the software by assigning |
---|
| 1535 | # an attribute to each testbed allocation that encodes the data to |
---|
| 1536 | # be released. This expression collects the data for each run of |
---|
| 1537 | # the loop. |
---|
| 1538 | auth_attrs.update([ |
---|
[9294673] | 1539 | (tbparams[tb].allocID, "/%s/%s" % ( path, dest)) \ |
---|
[913dc7a] | 1540 | for tb in tbparams.keys()]) |
---|
| 1541 | |
---|
| 1542 | self.append_experiment_authorization(expid, auth_attrs) |
---|
[895a133] | 1543 | |
---|
| 1544 | # Convert the software locations in the segments into the local |
---|
| 1545 | # copies on this host |
---|
| 1546 | for soft in [ s for tb in topo.values() \ |
---|
| 1547 | for e in tb.elements \ |
---|
| 1548 | if getattr(e, 'software', False) \ |
---|
| 1549 | for s in e.software ]: |
---|
| 1550 | if softmap.has_key(soft.location): |
---|
| 1551 | soft.location = softmap[soft.location] |
---|
| 1552 | |
---|
| 1553 | |
---|
[a3ad8bd] | 1554 | def new_experiment(self, req, fid): |
---|
| 1555 | """ |
---|
| 1556 | The external interface to empty initial experiment creation called from |
---|
| 1557 | the dispatcher. |
---|
| 1558 | |
---|
| 1559 | Creates a working directory, splits the incoming description using the |
---|
| 1560 | splitter script and parses out the avrious subsections using the |
---|
| 1561 | lcasses above. Once each sub-experiment is created, use pooled threads |
---|
| 1562 | to instantiate them and start it all up. |
---|
| 1563 | """ |
---|
[7206e5a] | 1564 | req = req.get('NewRequestBody', None) |
---|
| 1565 | if not req: |
---|
| 1566 | raise service_error(service_error.req, |
---|
| 1567 | "Bad request format (no NewRequestBody)") |
---|
| 1568 | |
---|
| 1569 | if self.auth.import_credentials(data_list=req.get('credential', [])): |
---|
| 1570 | self.auth.save() |
---|
[c573278] | 1571 | |
---|
[e83f2f2] | 1572 | access_ok, proof = self.auth.check_attribute(fid, 'new', |
---|
| 1573 | with_proof=True) |
---|
| 1574 | |
---|
| 1575 | if not access_ok: |
---|
| 1576 | raise service_error(service_error.access, "New access denied", |
---|
| 1577 | proof=[proof]) |
---|
[a3ad8bd] | 1578 | |
---|
| 1579 | try: |
---|
| 1580 | tmpdir = tempfile.mkdtemp(prefix="split-") |
---|
[d3c8759] | 1581 | except EnvironmentError: |
---|
[a3ad8bd] | 1582 | raise service_error(service_error.internal, "Cannot create tmp dir") |
---|
| 1583 | |
---|
| 1584 | try: |
---|
| 1585 | access_user = self.accessdb[fid] |
---|
| 1586 | except KeyError: |
---|
| 1587 | raise service_error(service_error.internal, |
---|
| 1588 | "Access map and authorizer out of sync in " + \ |
---|
[7183b48] | 1589 | "new_experiment for fedid %s" % fid) |
---|
[a3ad8bd] | 1590 | |
---|
| 1591 | # Generate an ID for the experiment (slice) and a certificate that the |
---|
| 1592 | # allocator can use to prove they own it. We'll ship it back through |
---|
[7206e5a] | 1593 | # the encrypted connection. If the requester supplied one, use it. |
---|
| 1594 | if 'experimentAccess' in req and 'X509' in req['experimentAccess']: |
---|
| 1595 | expcert = req['experimentAccess']['X509'] |
---|
[962ea25] | 1596 | expid = fedid(certstr=expcert) |
---|
[7206e5a] | 1597 | self.state_lock.acquire() |
---|
| 1598 | if expid in self.state: |
---|
| 1599 | self.state_lock.release() |
---|
| 1600 | raise service_error(service_error.req, |
---|
| 1601 | 'fedid %s identifies an existing experiment' % expid) |
---|
| 1602 | self.state_lock.release() |
---|
| 1603 | else: |
---|
| 1604 | (expid, expcert) = generate_fedid("test", dir=tmpdir, log=self.log) |
---|
[a3ad8bd] | 1605 | |
---|
| 1606 | #now we're done with the tmpdir, and it should be empty |
---|
| 1607 | if self.cleanup: |
---|
| 1608 | self.log.debug("[new_experiment]: removing %s" % tmpdir) |
---|
| 1609 | os.rmdir(tmpdir) |
---|
| 1610 | else: |
---|
| 1611 | self.log.debug("[new_experiment]: not removing %s" % tmpdir) |
---|
| 1612 | |
---|
| 1613 | eid = self.create_experiment_state(fid, req, expid, expcert, |
---|
| 1614 | state='empty') |
---|
| 1615 | |
---|
| 1616 | rv = { |
---|
| 1617 | 'experimentID': [ |
---|
| 1618 | {'localname' : eid }, { 'fedid': copy.copy(expid) } |
---|
| 1619 | ], |
---|
| 1620 | 'experimentStatus': 'empty', |
---|
[e83f2f2] | 1621 | 'experimentAccess': { 'X509' : expcert }, |
---|
| 1622 | 'proof': proof.to_dict(), |
---|
[a3ad8bd] | 1623 | } |
---|
| 1624 | |
---|
| 1625 | return rv |
---|
| 1626 | |
---|
[cf0ff4f] | 1627 | # create_experiment sub-functions |
---|
| 1628 | |
---|
[5ecb9a3] | 1629 | @staticmethod |
---|
[cf0ff4f] | 1630 | def get_experiment_key(req, field='experimentID'): |
---|
[5ecb9a3] | 1631 | """ |
---|
| 1632 | Parse the experiment identifiers out of the request (the request body |
---|
| 1633 | tag has been removed). Specifically this pulls either the fedid or the |
---|
| 1634 | localname out of the experimentID field. A fedid is preferred. If |
---|
| 1635 | neither is present or the request does not contain the fields, |
---|
| 1636 | service_errors are raised. |
---|
| 1637 | """ |
---|
| 1638 | # Get the experiment access |
---|
[cf0ff4f] | 1639 | exp = req.get(field, None) |
---|
[5ecb9a3] | 1640 | if exp: |
---|
| 1641 | if exp.has_key('fedid'): |
---|
| 1642 | key = exp['fedid'] |
---|
| 1643 | elif exp.has_key('localname'): |
---|
| 1644 | key = exp['localname'] |
---|
| 1645 | else: |
---|
| 1646 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 1647 | else: |
---|
| 1648 | raise service_error(service_error.req, "No request?") |
---|
| 1649 | |
---|
| 1650 | return key |
---|
| 1651 | |
---|
| 1652 | def get_experiment_ids_and_start(self, key, tmpdir): |
---|
| 1653 | """ |
---|
| 1654 | Get the experiment name, id and access certificate from the state, and |
---|
| 1655 | set the experiment state to 'starting'. returns a triple (fedid, |
---|
| 1656 | localname, access_cert_file). The access_cert_file is a copy of the |
---|
| 1657 | contents of the access certificate, created in the tempdir with |
---|
| 1658 | restricted permissions. If things are confused, raise an exception. |
---|
| 1659 | """ |
---|
| 1660 | |
---|
| 1661 | expid = eid = None |
---|
| 1662 | self.state_lock.acquire() |
---|
[29d5f7c] | 1663 | if key in self.state: |
---|
| 1664 | exp = self.state[key] |
---|
| 1665 | exp.status = "starting" |
---|
[6e33086] | 1666 | exp.updated() |
---|
[29d5f7c] | 1667 | expid = exp.fedid |
---|
| 1668 | eid = exp.localname |
---|
| 1669 | expcert = exp.identity |
---|
[5ecb9a3] | 1670 | self.state_lock.release() |
---|
| 1671 | |
---|
| 1672 | # make a protected copy of the access certificate so the experiment |
---|
| 1673 | # controller can act as the experiment principal. |
---|
| 1674 | if expcert: |
---|
| 1675 | expcert_file = self.make_temp_certfile(expcert, tmpdir) |
---|
| 1676 | if not expcert_file: |
---|
| 1677 | raise service_error(service_error.internal, |
---|
| 1678 | "Cannot create temp cert file?") |
---|
| 1679 | else: |
---|
| 1680 | expcert_file = None |
---|
| 1681 | |
---|
| 1682 | return (eid, expid, expcert_file) |
---|
| 1683 | |
---|
| 1684 | def get_topology(self, req, tmpdir): |
---|
| 1685 | """ |
---|
| 1686 | Get the ns2 content and put it into a file for parsing. Call the local |
---|
| 1687 | or remote parser and return the topdl.Topology. Errors result in |
---|
| 1688 | exceptions. req is the request and tmpdir is a work directory. |
---|
| 1689 | """ |
---|
| 1690 | |
---|
| 1691 | # The tcl parser needs to read a file so put the content into that file |
---|
| 1692 | descr=req.get('experimentdescription', None) |
---|
| 1693 | if descr: |
---|
[a7c0bcb] | 1694 | if 'ns2description' in descr: |
---|
| 1695 | file_content=descr['ns2description'] |
---|
| 1696 | elif 'topdldescription' in descr: |
---|
| 1697 | return topdl.Topology(**descr['topdldescription']) |
---|
| 1698 | else: |
---|
| 1699 | raise service_error(service_error.req, |
---|
| 1700 | 'Unknown experiment description type') |
---|
[5ecb9a3] | 1701 | else: |
---|
| 1702 | raise service_error(service_error.req, "No experiment description") |
---|
| 1703 | |
---|
| 1704 | |
---|
| 1705 | if self.splitter_url: |
---|
| 1706 | self.log.debug("Calling remote topdl translator at %s" % \ |
---|
| 1707 | self.splitter_url) |
---|
| 1708 | top = self.remote_ns2topdl(self.splitter_url, file_content) |
---|
| 1709 | else: |
---|
| 1710 | tclfile = os.path.join(tmpdir, "experiment.tcl") |
---|
| 1711 | if file_content: |
---|
| 1712 | try: |
---|
| 1713 | f = open(tclfile, 'w') |
---|
| 1714 | f.write(file_content) |
---|
| 1715 | f.close() |
---|
| 1716 | except EnvironmentError: |
---|
| 1717 | raise service_error(service_error.internal, |
---|
| 1718 | "Cannot write temp experiment description") |
---|
| 1719 | else: |
---|
| 1720 | raise service_error(service_error.req, |
---|
| 1721 | "Only ns2descriptions supported") |
---|
| 1722 | pid = "dummy" |
---|
| 1723 | gid = "dummy" |
---|
| 1724 | eid = "dummy" |
---|
| 1725 | |
---|
| 1726 | tclcmd = [self.tclsh, self.tcl_splitter, '-t', '-x', |
---|
| 1727 | str(self.muxmax), '-m', 'dummy'] |
---|
| 1728 | |
---|
| 1729 | tclcmd.extend([pid, gid, eid, tclfile]) |
---|
| 1730 | |
---|
| 1731 | self.log.debug("running local splitter %s", " ".join(tclcmd)) |
---|
| 1732 | # This is just fantastic. As a side effect the parser copies |
---|
| 1733 | # tb_compat.tcl into the current directory, so that directory |
---|
| 1734 | # must be writable by the fedd user. Doing this in the |
---|
| 1735 | # temporary subdir ensures this is the case. |
---|
| 1736 | tclparser = Popen(tclcmd, stdout=PIPE, close_fds=True, |
---|
| 1737 | cwd=tmpdir) |
---|
| 1738 | split_data = tclparser.stdout |
---|
| 1739 | |
---|
| 1740 | top = topdl.topology_from_xml(file=split_data, top="experiment") |
---|
| 1741 | os.remove(tclfile) |
---|
| 1742 | |
---|
| 1743 | return top |
---|
| 1744 | |
---|
[1660f7c] | 1745 | def get_testbed_services(self, req, testbeds): |
---|
[5ecb9a3] | 1746 | """ |
---|
[57facae] | 1747 | Parse the services section of the request into two dicts mapping |
---|
| 1748 | testbed to lists of federated_service objects. The first dict maps all |
---|
| 1749 | exporters of services to those service objects, the second maps |
---|
| 1750 | testbeds to service objects only for services requiring portals. |
---|
[5ecb9a3] | 1751 | """ |
---|
[57facae] | 1752 | # We construct both dicts here because deriving the second is more |
---|
| 1753 | # comples than it looks - both the keys and lists can differ, and it's |
---|
| 1754 | # much easier to generate both in one pass. |
---|
[5ecb9a3] | 1755 | masters = { } |
---|
[57facae] | 1756 | pmasters = { } |
---|
[5ecb9a3] | 1757 | for s in req.get('service', []): |
---|
| 1758 | # If this is a service request with the importall field |
---|
| 1759 | # set, fill it out. |
---|
| 1760 | |
---|
| 1761 | if s.get('importall', False): |
---|
| 1762 | s['import'] = [ tb for tb in testbeds \ |
---|
| 1763 | if tb not in s.get('export',[])] |
---|
| 1764 | del s['importall'] |
---|
| 1765 | |
---|
| 1766 | # Add the service to masters |
---|
| 1767 | for tb in s.get('export', []): |
---|
| 1768 | if s.get('name', None): |
---|
| 1769 | |
---|
| 1770 | params = { } |
---|
| 1771 | for a in s.get('fedAttr', []): |
---|
| 1772 | params[a.get('attribute', '')] = a.get('value','') |
---|
| 1773 | |
---|
| 1774 | fser = federated_service(name=s['name'], |
---|
| 1775 | exporter=tb, importers=s.get('import',[]), |
---|
| 1776 | params=params) |
---|
| 1777 | if fser.name == 'hide_hosts' \ |
---|
| 1778 | and 'hosts' not in fser.params: |
---|
| 1779 | fser.params['hosts'] = \ |
---|
| 1780 | ",".join(tb_hosts.get(fser.exporter, [])) |
---|
| 1781 | if tb in masters: masters[tb].append(fser) |
---|
| 1782 | else: masters[tb] = [fser] |
---|
[57facae] | 1783 | |
---|
| 1784 | if fser.portal: |
---|
| 1785 | if tb in pmasters: pmasters[tb].append(fser) |
---|
| 1786 | else: pmasters[tb] = [fser] |
---|
[5ecb9a3] | 1787 | else: |
---|
| 1788 | self.log.error('Testbed service does not have name " + \ |
---|
| 1789 | "and importers') |
---|
[57facae] | 1790 | return masters, pmasters |
---|
[5ecb9a3] | 1791 | |
---|
[cf0ff4f] | 1792 | def generate_keys_and_hosts(self, tmpdir, expid, hosts, tbparams): |
---|
| 1793 | """ |
---|
[3df9b33] | 1794 | Create the ssh keys necessary for interconnecting the portal nodes and |
---|
[cf0ff4f] | 1795 | the global hosts file for letting each segment know about the IP |
---|
| 1796 | addresses in play. Save these into the repo. Add attributes to the |
---|
| 1797 | autorizer allowing access controllers to download them and return a set |
---|
[3df9b33] | 1798 | of attributes that inform the segments where to find this stuff. May |
---|
[cf0ff4f] | 1799 | raise service_errors in if there are problems. |
---|
| 1800 | """ |
---|
| 1801 | gw_pubkey_base = "fed.%s.pub" % self.ssh_type |
---|
| 1802 | gw_secretkey_base = "fed.%s" % self.ssh_type |
---|
[3df9b33] | 1803 | keydir = os.path.join(tmpdir, 'keys') |
---|
| 1804 | gw_pubkey = os.path.join(keydir, gw_pubkey_base) |
---|
| 1805 | gw_secretkey = os.path.join(keydir, gw_secretkey_base) |
---|
[cf0ff4f] | 1806 | |
---|
| 1807 | try: |
---|
| 1808 | self.generate_ssh_keys(gw_secretkey, self.ssh_type) |
---|
| 1809 | except ValueError: |
---|
| 1810 | raise service_error(service_error.server_config, |
---|
| 1811 | "Bad key type (%s)" % self.ssh_type) |
---|
| 1812 | |
---|
[3df9b33] | 1813 | self.generate_seer_certs(keydir) |
---|
[cf0ff4f] | 1814 | |
---|
| 1815 | # Copy configuration files into the remote file store |
---|
| 1816 | # The config urlpath |
---|
| 1817 | configpath = "/%s/config" % expid |
---|
| 1818 | # The config file system location |
---|
| 1819 | configdir ="%s%s" % ( self.repodir, configpath) |
---|
| 1820 | try: |
---|
| 1821 | os.makedirs(configdir) |
---|
| 1822 | except EnvironmentError, e: |
---|
| 1823 | raise service_error(service_error.internal, |
---|
| 1824 | "Cannot create config directory: %s" % e) |
---|
| 1825 | try: |
---|
| 1826 | f = open("%s/hosts" % configdir, "w") |
---|
| 1827 | print >> f, string.join(hosts, '\n') |
---|
| 1828 | f.close() |
---|
| 1829 | except EnvironmentError, e: |
---|
| 1830 | raise service_error(service_error.internal, |
---|
| 1831 | "Cannot write hosts file: %s" % e) |
---|
| 1832 | try: |
---|
[3df9b33] | 1833 | copy_file(gw_pubkey, os.path.join(configdir, gw_pubkey_base)) |
---|
| 1834 | copy_file(gw_secretkey, os.path.join(configdir, gw_secretkey_base)) |
---|
| 1835 | copy_file(os.path.join(keydir, 'ca.pem'), |
---|
| 1836 | os.path.join(configdir, 'ca.pem')) |
---|
| 1837 | copy_file(os.path.join(keydir, 'node.pem'), |
---|
| 1838 | os.path.join(configdir, 'node.pem')) |
---|
[cf0ff4f] | 1839 | except EnvironmentError, e: |
---|
| 1840 | raise service_error(service_error.internal, |
---|
| 1841 | "Cannot copy keyfiles: %s" % e) |
---|
| 1842 | |
---|
[913dc7a] | 1843 | # Allow the individual testbeds to access the configuration files, |
---|
| 1844 | # again by setting an attribute for the relevant pathnames on each |
---|
| 1845 | # allocation principal. Yeah, that's a long list comprehension. |
---|
| 1846 | self.append_experiment_authorization(expid, set([ |
---|
[9294673] | 1847 | (tbparams[tb].allocID, "%s/%s" % (configpath, f)) \ |
---|
[913dc7a] | 1848 | for tb in tbparams.keys() \ |
---|
[3df9b33] | 1849 | for f in ("hosts", 'ca.pem', 'node.pem', |
---|
| 1850 | gw_secretkey_base, gw_pubkey_base)])) |
---|
[cf0ff4f] | 1851 | |
---|
| 1852 | attrs = [ |
---|
| 1853 | { |
---|
| 1854 | 'attribute': 'ssh_pubkey', |
---|
| 1855 | 'value': '%s/%s/config/%s' % \ |
---|
| 1856 | (self.repo_url, expid, gw_pubkey_base) |
---|
| 1857 | }, |
---|
| 1858 | { |
---|
| 1859 | 'attribute': 'ssh_secretkey', |
---|
| 1860 | 'value': '%s/%s/config/%s' % \ |
---|
| 1861 | (self.repo_url, expid, gw_secretkey_base) |
---|
| 1862 | }, |
---|
| 1863 | { |
---|
| 1864 | 'attribute': 'hosts', |
---|
| 1865 | 'value': '%s/%s/config/hosts' % \ |
---|
| 1866 | (self.repo_url, expid) |
---|
| 1867 | }, |
---|
[3df9b33] | 1868 | { |
---|
| 1869 | 'attribute': 'seer_ca_pem', |
---|
| 1870 | 'value': '%s/%s/config/%s' % \ |
---|
| 1871 | (self.repo_url, expid, 'ca.pem') |
---|
| 1872 | }, |
---|
| 1873 | { |
---|
| 1874 | 'attribute': 'seer_node_pem', |
---|
| 1875 | 'value': '%s/%s/config/%s' % \ |
---|
| 1876 | (self.repo_url, expid, 'node.pem') |
---|
| 1877 | }, |
---|
[cf0ff4f] | 1878 | ] |
---|
| 1879 | return attrs |
---|
| 1880 | |
---|
| 1881 | |
---|
| 1882 | def get_vtopo(self, req, fid): |
---|
| 1883 | """ |
---|
| 1884 | Return the stored virtual topology for this experiment |
---|
| 1885 | """ |
---|
| 1886 | rv = None |
---|
| 1887 | state = None |
---|
| 1888 | |
---|
| 1889 | req = req.get('VtopoRequestBody', None) |
---|
| 1890 | if not req: |
---|
| 1891 | raise service_error(service_error.req, |
---|
| 1892 | "Bad request format (no VtopoRequestBody)") |
---|
| 1893 | exp = req.get('experiment', None) |
---|
| 1894 | if exp: |
---|
| 1895 | if exp.has_key('fedid'): |
---|
| 1896 | key = exp['fedid'] |
---|
| 1897 | keytype = "fedid" |
---|
| 1898 | elif exp.has_key('localname'): |
---|
| 1899 | key = exp['localname'] |
---|
| 1900 | keytype = "localname" |
---|
| 1901 | else: |
---|
| 1902 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 1903 | else: |
---|
| 1904 | raise service_error(service_error.req, "No request?") |
---|
| 1905 | |
---|
[e83f2f2] | 1906 | proof = self.check_experiment_access(fid, key) |
---|
[cf0ff4f] | 1907 | |
---|
| 1908 | self.state_lock.acquire() |
---|
[29d5f7c] | 1909 | # XXX: this needs to be recalculated |
---|
[80b1e82] | 1910 | if key in self.state: |
---|
| 1911 | if self.state[key].top is not None: |
---|
| 1912 | vtopo = topdl.topology_to_vtopo(self.state[key].top) |
---|
[e83f2f2] | 1913 | rv = { 'experiment' : {keytype: key }, |
---|
[80b1e82] | 1914 | 'vtopo': vtopo, |
---|
[e83f2f2] | 1915 | 'proof': proof.to_dict(), |
---|
[cf0ff4f] | 1916 | } |
---|
| 1917 | else: |
---|
[80b1e82] | 1918 | state = self.state[key].status |
---|
[cf0ff4f] | 1919 | self.state_lock.release() |
---|
| 1920 | |
---|
| 1921 | if rv: return rv |
---|
| 1922 | else: |
---|
| 1923 | if state: |
---|
| 1924 | raise service_error(service_error.partial, |
---|
| 1925 | "Not ready: %s" % state) |
---|
| 1926 | else: |
---|
| 1927 | raise service_error(service_error.req, "No such experiment") |
---|
| 1928 | |
---|
| 1929 | def get_vis(self, req, fid): |
---|
| 1930 | """ |
---|
| 1931 | Return the stored visualization for this experiment |
---|
| 1932 | """ |
---|
| 1933 | rv = None |
---|
| 1934 | state = None |
---|
| 1935 | |
---|
| 1936 | req = req.get('VisRequestBody', None) |
---|
| 1937 | if not req: |
---|
| 1938 | raise service_error(service_error.req, |
---|
| 1939 | "Bad request format (no VisRequestBody)") |
---|
| 1940 | exp = req.get('experiment', None) |
---|
| 1941 | if exp: |
---|
| 1942 | if exp.has_key('fedid'): |
---|
| 1943 | key = exp['fedid'] |
---|
| 1944 | keytype = "fedid" |
---|
| 1945 | elif exp.has_key('localname'): |
---|
| 1946 | key = exp['localname'] |
---|
| 1947 | keytype = "localname" |
---|
| 1948 | else: |
---|
| 1949 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 1950 | else: |
---|
| 1951 | raise service_error(service_error.req, "No request?") |
---|
| 1952 | |
---|
[e83f2f2] | 1953 | proof = self.check_experiment_access(fid, key) |
---|
[cf0ff4f] | 1954 | |
---|
| 1955 | self.state_lock.acquire() |
---|
[80b1e82] | 1956 | # Generate the visualization |
---|
| 1957 | if key in self.state: |
---|
| 1958 | if self.state[key].top is not None: |
---|
| 1959 | try: |
---|
| 1960 | vis = self.genviz( |
---|
| 1961 | topdl.topology_to_vtopo(self.state[key].topo)) |
---|
| 1962 | except service_error, e: |
---|
| 1963 | self.state_lock.release() |
---|
| 1964 | raise e |
---|
| 1965 | rv = { 'experiment' : {keytype: key }, |
---|
| 1966 | 'vis': vis, |
---|
[e83f2f2] | 1967 | 'proof': proof.to_dict(), |
---|
[80b1e82] | 1968 | } |
---|
[cf0ff4f] | 1969 | else: |
---|
[80b1e82] | 1970 | state = self.state[key].status |
---|
[cf0ff4f] | 1971 | self.state_lock.release() |
---|
| 1972 | |
---|
| 1973 | if rv: return rv |
---|
| 1974 | else: |
---|
| 1975 | if state: |
---|
| 1976 | raise service_error(service_error.partial, |
---|
| 1977 | "Not ready: %s" % state) |
---|
| 1978 | else: |
---|
| 1979 | raise service_error(service_error.req, "No such experiment") |
---|
| 1980 | |
---|
| 1981 | |
---|
[ec3aa4d] | 1982 | def save_federant_information(self, allocated, tbparams, eid, top): |
---|
[cf0ff4f] | 1983 | """ |
---|
| 1984 | Store the various data that have changed in the experiment state |
---|
| 1985 | between when it was started and the beginning of resource allocation. |
---|
| 1986 | This is basically the information about each local allocation. This |
---|
[e83f2f2] | 1987 | fills in the values of the placeholder allocation in the state. It |
---|
| 1988 | also collects the access proofs and returns them as dicts for a |
---|
| 1989 | response message. |
---|
[cf0ff4f] | 1990 | """ |
---|
[29d5f7c] | 1991 | self.state_lock.acquire() |
---|
| 1992 | exp = self.state[eid] |
---|
[ec3aa4d] | 1993 | exp.top = top.clone() |
---|
[cf0ff4f] | 1994 | # save federant information |
---|
| 1995 | for k in allocated.keys(): |
---|
[9294673] | 1996 | exp.add_allocation(tbparams[k]) |
---|
[ec3aa4d] | 1997 | top.elements.append(topdl.Testbed(uri=tbparams[k].uri, |
---|
[ab3d6c5] | 1998 | type="testbed", localname=[k], |
---|
| 1999 | service=[ s.to_topdl() for s in tbparams[k].services])) |
---|
[cf0ff4f] | 2000 | |
---|
[e83f2f2] | 2001 | # Access proofs for the response message |
---|
| 2002 | proofs = [copy.deepcopy(p) for k in tbparams.keys()\ |
---|
[9294673] | 2003 | for p in tbparams[k].proof] |
---|
[6e33086] | 2004 | exp.updated() |
---|
[cf0ff4f] | 2005 | if self.state_filename: |
---|
| 2006 | self.write_state() |
---|
| 2007 | self.state_lock.release() |
---|
[e83f2f2] | 2008 | return proofs |
---|
[cf0ff4f] | 2009 | |
---|
| 2010 | def clear_placeholder(self, eid, expid, tmpdir): |
---|
| 2011 | """ |
---|
| 2012 | Clear the placeholder and remove any allocated temporary dir. |
---|
| 2013 | """ |
---|
| 2014 | |
---|
| 2015 | self.state_lock.acquire() |
---|
| 2016 | del self.state[eid] |
---|
| 2017 | del self.state[expid] |
---|
| 2018 | if self.state_filename: self.write_state() |
---|
| 2019 | self.state_lock.release() |
---|
| 2020 | if tmpdir and self.cleanup: |
---|
| 2021 | self.remove_dirs(tmpdir) |
---|
| 2022 | |
---|
| 2023 | # end of create_experiment sub-functions |
---|
[5ecb9a3] | 2024 | |
---|
[e19b75c] | 2025 | def create_experiment(self, req, fid): |
---|
[db6b092] | 2026 | """ |
---|
| 2027 | The external interface to experiment creation called from the |
---|
| 2028 | dispatcher. |
---|
| 2029 | |
---|
| 2030 | Creates a working directory, splits the incoming description using the |
---|
[43197eb] | 2031 | splitter script and parses out the various subsections using the |
---|
[1a4ee0f] | 2032 | classes above. Once each sub-experiment is created, use pooled threads |
---|
| 2033 | to instantiate them and start it all up. |
---|
[db6b092] | 2034 | """ |
---|
[7183b48] | 2035 | |
---|
| 2036 | req = req.get('CreateRequestBody', None) |
---|
[5ecb9a3] | 2037 | if req: |
---|
[cf0ff4f] | 2038 | key = self.get_experiment_key(req) |
---|
[5ecb9a3] | 2039 | else: |
---|
[7183b48] | 2040 | raise service_error(service_error.req, |
---|
| 2041 | "Bad request format (no CreateRequestBody)") |
---|
| 2042 | |
---|
[6e63513] | 2043 | # Import information from the requester |
---|
| 2044 | if self.auth.import_credentials(data_list=req.get('credential', [])): |
---|
| 2045 | self.auth.save() |
---|
| 2046 | |
---|
[5ecb9a3] | 2047 | # Make sure that the caller can talk to us |
---|
[e83f2f2] | 2048 | proof = self.check_experiment_access(fid, key) |
---|
[db6b092] | 2049 | |
---|
[fd07c48] | 2050 | # Install the testbed map entries supplied with the request into a copy |
---|
| 2051 | # of the testbed map. |
---|
| 2052 | tbmap = dict(self.tbmap) |
---|
| 2053 | for m in req.get('testbedmap', []): |
---|
| 2054 | if 'testbed' in m and 'uri' in m: |
---|
| 2055 | tbmap[m['testbed']] = m['uri'] |
---|
| 2056 | |
---|
[5ecb9a3] | 2057 | # a place to work |
---|
[db6b092] | 2058 | try: |
---|
| 2059 | tmpdir = tempfile.mkdtemp(prefix="split-") |
---|
[895a133] | 2060 | os.mkdir(tmpdir+"/keys") |
---|
[d3c8759] | 2061 | except EnvironmentError: |
---|
[db6b092] | 2062 | raise service_error(service_error.internal, "Cannot create tmp dir") |
---|
| 2063 | |
---|
| 2064 | tbparams = { } |
---|
| 2065 | |
---|
[5ecb9a3] | 2066 | eid, expid, expcert_file = \ |
---|
| 2067 | self.get_experiment_ids_and_start(key, tmpdir) |
---|
[c573278] | 2068 | |
---|
[5ecb9a3] | 2069 | # This catches exceptions to clear the placeholder if necessary |
---|
[db6b092] | 2070 | try: |
---|
[5ecb9a3] | 2071 | if not (eid and expid): |
---|
| 2072 | raise service_error(service_error.internal, |
---|
| 2073 | "Cannot find local experiment info!?") |
---|
[5f6929a] | 2074 | |
---|
[5ecb9a3] | 2075 | top = self.get_topology(req, tmpdir) |
---|
[2627eb3] | 2076 | self.confirm_software(top) |
---|
[5ecb9a3] | 2077 | # Assign the IPs |
---|
[69692a9] | 2078 | hosts, ip_allocator = self.allocate_ips_to_topo(top) |
---|
[1a4ee0f] | 2079 | # Find the testbeds to look up |
---|
[5334044] | 2080 | tb_hosts = { } |
---|
[5ecb9a3] | 2081 | testbeds = [ ] |
---|
| 2082 | for e in top.elements: |
---|
| 2083 | if isinstance(e, topdl.Computer): |
---|
| 2084 | tb = e.get_attribute('testbed') or 'default' |
---|
| 2085 | if tb in tb_hosts: tb_hosts[tb].append(e.name) |
---|
| 2086 | else: |
---|
| 2087 | tb_hosts[tb] = [ e.name ] |
---|
| 2088 | testbeds.append(tb) |
---|
| 2089 | |
---|
[57facae] | 2090 | masters, pmasters = self.get_testbed_services(req, testbeds) |
---|
[895a133] | 2091 | allocated = { } # Testbeds we can access |
---|
| 2092 | topo ={ } # Sub topologies |
---|
[e02cd14] | 2093 | connInfo = { } # Connection information |
---|
[5334044] | 2094 | |
---|
[2627eb3] | 2095 | self.split_topology(top, topo, testbeds) |
---|
| 2096 | |
---|
[5ecb9a3] | 2097 | self.get_access_to_testbeds(testbeds, fid, allocated, |
---|
| 2098 | tbparams, masters, tbmap, expid, expcert_file) |
---|
[5f96438] | 2099 | |
---|
[cf0ff4f] | 2100 | attrs = self.generate_keys_and_hosts(tmpdir, expid, hosts, tbparams) |
---|
[cc8d8e9] | 2101 | |
---|
[fd07c48] | 2102 | part = experiment_partition(self.auth, self.store_url, tbmap, |
---|
[175b444] | 2103 | self.muxmax, self.direct_transit) |
---|
[5334044] | 2104 | part.add_portals(top, topo, eid, pmasters, tbparams, ip_allocator, |
---|
[2761484] | 2105 | connInfo, expid) |
---|
[913dc7a] | 2106 | |
---|
| 2107 | auth_attrs = set() |
---|
[ab847bc] | 2108 | # Now get access to the dynamic testbeds (those added above) |
---|
| 2109 | for tb in [ t for t in topo if t not in allocated]: |
---|
[cf0ff4f] | 2110 | self.get_access(tb, tbparams, fid, masters, tbmap, |
---|
| 2111 | expid, expcert_file) |
---|
[ab847bc] | 2112 | allocated[tb] = 1 |
---|
| 2113 | store_keys = topo[tb].get_attribute('store_keys') |
---|
| 2114 | # Give the testbed access to keys it exports or imports |
---|
| 2115 | if store_keys: |
---|
[b16cfc0] | 2116 | auth_attrs.update(set([ |
---|
[9294673] | 2117 | (tbparams[tb].allocID, sk) \ |
---|
[913dc7a] | 2118 | for sk in store_keys.split(" ")])) |
---|
| 2119 | |
---|
| 2120 | if auth_attrs: |
---|
| 2121 | self.append_experiment_authorization(expid, auth_attrs) |
---|
[69692a9] | 2122 | |
---|
[cf0ff4f] | 2123 | # transit and disconnected testbeds may not have a connInfo entry. |
---|
| 2124 | # Fill in the blanks. |
---|
| 2125 | for t in allocated.keys(): |
---|
| 2126 | if not connInfo.has_key(t): |
---|
| 2127 | connInfo[t] = { } |
---|
| 2128 | |
---|
[895a133] | 2129 | self.wrangle_software(expid, top, topo, tbparams) |
---|
[cc8d8e9] | 2130 | |
---|
[e83f2f2] | 2131 | proofs = self.save_federant_information(allocated, tbparams, |
---|
[ec3aa4d] | 2132 | eid, top) |
---|
[866c983] | 2133 | except service_error, e: |
---|
| 2134 | # If something goes wrong in the parse (usually an access error) |
---|
| 2135 | # clear the placeholder state. From here on out the code delays |
---|
[db6b092] | 2136 | # exceptions. Failing at this point returns a fault to the remote |
---|
| 2137 | # caller. |
---|
[cf0ff4f] | 2138 | self.clear_placeholder(eid, expid, tmpdir) |
---|
[866c983] | 2139 | raise e |
---|
| 2140 | |
---|
[db6b092] | 2141 | # Start the background swapper and return the starting state. From |
---|
| 2142 | # here on out, the state will stick around a while. |
---|
[866c983] | 2143 | |
---|
[db6b092] | 2144 | # Create a logger that logs to the experiment's state object as well as |
---|
| 2145 | # to the main log file. |
---|
| 2146 | alloc_log = logging.getLogger('fedd.experiment_control.%s' % eid) |
---|
[29d5f7c] | 2147 | alloc_collector = self.list_log(self.state[eid].log) |
---|
[f07fa49] | 2148 | h = logging.StreamHandler(alloc_collector) |
---|
[db6b092] | 2149 | # XXX: there should be a global one of these rather than repeating the |
---|
| 2150 | # code. |
---|
| 2151 | h.setFormatter(logging.Formatter("%(asctime)s %(name)s %(message)s", |
---|
| 2152 | '%d %b %y %H:%M:%S')) |
---|
| 2153 | alloc_log.addHandler(h) |
---|
[617592b] | 2154 | |
---|
[db6b092] | 2155 | # Start a thread to do the resource allocation |
---|
[e19b75c] | 2156 | t = Thread(target=self.allocate_resources, |
---|
[43197eb] | 2157 | args=(allocated, masters, eid, expid, tbparams, |
---|
[b4b19c7] | 2158 | top, topo, tmpdir, alloc_log, alloc_collector, attrs, |
---|
[725c55d] | 2159 | connInfo, tbmap, expcert_file), |
---|
[db6b092] | 2160 | name=eid) |
---|
| 2161 | t.start() |
---|
| 2162 | |
---|
| 2163 | rv = { |
---|
| 2164 | 'experimentID': [ |
---|
| 2165 | {'localname' : eid }, { 'fedid': copy.copy(expid) } |
---|
| 2166 | ], |
---|
| 2167 | 'experimentStatus': 'starting', |
---|
[e83f2f2] | 2168 | 'proof': [ proof.to_dict() ] + proofs, |
---|
[db6b092] | 2169 | } |
---|
| 2170 | |
---|
| 2171 | return rv |
---|
[9479343] | 2172 | |
---|
| 2173 | def get_experiment_fedid(self, key): |
---|
| 2174 | """ |
---|
[db6b092] | 2175 | find the fedid associated with the localname key in the state database. |
---|
[9479343] | 2176 | """ |
---|
| 2177 | |
---|
[db6b092] | 2178 | rv = None |
---|
| 2179 | self.state_lock.acquire() |
---|
[29d5f7c] | 2180 | if key in self.state: |
---|
| 2181 | rv = self.state[key].fedid |
---|
[db6b092] | 2182 | self.state_lock.release() |
---|
| 2183 | return rv |
---|
[a97394b] | 2184 | |
---|
[4064742] | 2185 | def check_experiment_access(self, fid, key): |
---|
[866c983] | 2186 | """ |
---|
| 2187 | Confirm that the fid has access to the experiment. Though a request |
---|
| 2188 | may be made in terms of a local name, the access attribute is always |
---|
| 2189 | the experiment's fedid. |
---|
| 2190 | """ |
---|
| 2191 | if not isinstance(key, fedid): |
---|
[db6b092] | 2192 | key = self.get_experiment_fedid(key) |
---|
[866c983] | 2193 | |
---|
[e83f2f2] | 2194 | access_ok, proof = self.auth.check_attribute(fid, key, with_proof=True) |
---|
| 2195 | |
---|
| 2196 | if access_ok: |
---|
| 2197 | return proof |
---|
[866c983] | 2198 | else: |
---|
[e83f2f2] | 2199 | raise service_error(service_error.access, "Access Denied", |
---|
| 2200 | proof) |
---|
[4064742] | 2201 | |
---|
| 2202 | |
---|
[db6b092] | 2203 | def get_handler(self, path, fid): |
---|
[cf0ff4f] | 2204 | """ |
---|
| 2205 | Perhaps surprisingly named, this function handles HTTP GET requests to |
---|
| 2206 | this server (SOAP requests are POSTs). |
---|
| 2207 | """ |
---|
[7183b48] | 2208 | self.log.info("Get handler %s %s" % (path, fid)) |
---|
[e83f2f2] | 2209 | # XXX: log proofs? |
---|
[6c57fe9] | 2210 | if self.auth.check_attribute(fid, path): |
---|
| 2211 | return ("%s/%s" % (self.repodir, path), "application/binary") |
---|
| 2212 | else: |
---|
| 2213 | return (None, None) |
---|
[987aaa1] | 2214 | |
---|
[6e33086] | 2215 | def update_info(self, key, force=False): |
---|
| 2216 | top = None |
---|
| 2217 | self.state_lock.acquire() |
---|
| 2218 | if key in self.state: |
---|
| 2219 | if force or self.state[key].older_than(self.info_cache_limit): |
---|
| 2220 | top = self.state[key].top |
---|
| 2221 | if top is not None: top = top.clone() |
---|
| 2222 | d1, info_params, cert, d2 = \ |
---|
| 2223 | self.get_segment_info(self.state[key], need_lock=False) |
---|
| 2224 | self.state_lock.release() |
---|
| 2225 | |
---|
| 2226 | if top is None: return |
---|
| 2227 | |
---|
| 2228 | try: |
---|
| 2229 | tmpdir = tempfile.mkdtemp(prefix="info-") |
---|
| 2230 | except EnvironmentError: |
---|
| 2231 | raise service_error(service_error.internal, |
---|
| 2232 | "Cannot create tmp dir") |
---|
| 2233 | cert_file = self.make_temp_certfile(cert, tmpdir) |
---|
| 2234 | |
---|
| 2235 | data = [] |
---|
| 2236 | try: |
---|
| 2237 | for k, (uri, aid) in info_params.items(): |
---|
| 2238 | info=self.info_segment(log=self.log, testbed=uri, |
---|
| 2239 | cert_file=cert_file, cert_pwd=None, |
---|
| 2240 | trusted_certs=self.trusted_certs, |
---|
| 2241 | caller=self.call_InfoSegment) |
---|
| 2242 | info(uri, aid) |
---|
| 2243 | data.append(info) |
---|
| 2244 | # Clean up the tmpdir no matter what |
---|
| 2245 | finally: |
---|
| 2246 | if tmpdir: self.remove_dirs(tmpdir) |
---|
| 2247 | |
---|
| 2248 | self.annotate_topology(top, data) |
---|
| 2249 | self.state_lock.acquire() |
---|
| 2250 | if key in self.state: |
---|
| 2251 | self.state[key].top = top |
---|
| 2252 | self.state[key].updated() |
---|
| 2253 | if self.state_filename: self.write_state() |
---|
| 2254 | self.state_lock.release() |
---|
| 2255 | |
---|
[29d5f7c] | 2256 | |
---|
[c52c48d] | 2257 | def get_info(self, req, fid): |
---|
[866c983] | 2258 | """ |
---|
| 2259 | Return all the stored info about this experiment |
---|
| 2260 | """ |
---|
| 2261 | rv = None |
---|
| 2262 | |
---|
| 2263 | req = req.get('InfoRequestBody', None) |
---|
| 2264 | if not req: |
---|
| 2265 | raise service_error(service_error.req, |
---|
[65f3f29] | 2266 | "Bad request format (no InfoRequestBody)") |
---|
[866c983] | 2267 | exp = req.get('experiment', None) |
---|
[80b1e82] | 2268 | legacy = req.get('legacy', False) |
---|
[6e33086] | 2269 | fresh = req.get('fresh', False) |
---|
[866c983] | 2270 | if exp: |
---|
| 2271 | if exp.has_key('fedid'): |
---|
| 2272 | key = exp['fedid'] |
---|
| 2273 | keytype = "fedid" |
---|
| 2274 | elif exp.has_key('localname'): |
---|
| 2275 | key = exp['localname'] |
---|
| 2276 | keytype = "localname" |
---|
| 2277 | else: |
---|
| 2278 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 2279 | else: |
---|
| 2280 | raise service_error(service_error.req, "No request?") |
---|
| 2281 | |
---|
[e83f2f2] | 2282 | proof = self.check_experiment_access(fid, key) |
---|
[866c983] | 2283 | |
---|
[6e33086] | 2284 | self.update_info(key, fresh) |
---|
| 2285 | |
---|
[866c983] | 2286 | self.state_lock.acquire() |
---|
| 2287 | if self.state.has_key(key): |
---|
[29d5f7c] | 2288 | rv = self.state[key].get_info() |
---|
[6e33086] | 2289 | # Copy the topo if we need legacy annotations |
---|
[80b1e82] | 2290 | if legacy: |
---|
| 2291 | top = self.state[key].top |
---|
| 2292 | if top is not None: top = top.clone() |
---|
[866c983] | 2293 | self.state_lock.release() |
---|
| 2294 | |
---|
[80b1e82] | 2295 | # If the legacy visualization and topology representations are |
---|
[6e33086] | 2296 | # requested, calculate them and add them to the return. |
---|
[80b1e82] | 2297 | if legacy and rv is not None: |
---|
| 2298 | if top is not None: |
---|
| 2299 | vtopo = topdl.topology_to_vtopo(top) |
---|
| 2300 | if vtopo is not None: |
---|
| 2301 | rv['vtopo'] = vtopo |
---|
| 2302 | try: |
---|
| 2303 | vis = self.genviz(vtopo) |
---|
| 2304 | except service_error, e: |
---|
| 2305 | self.log.debug('Problem generating visualization: %s' \ |
---|
| 2306 | % e) |
---|
| 2307 | vis = None |
---|
| 2308 | if vis is not None: |
---|
| 2309 | rv['vis'] = vis |
---|
[db6b092] | 2310 | if rv: |
---|
[29d5f7c] | 2311 | rv['proof'] = proof.to_dict() |
---|
| 2312 | return rv |
---|
[bd3e314] | 2313 | else: |
---|
[db6b092] | 2314 | raise service_error(service_error.req, "No such experiment") |
---|
[7a8d667] | 2315 | |
---|
[65f3f29] | 2316 | def get_multi_info(self, req, fid): |
---|
| 2317 | """ |
---|
| 2318 | Return all the stored info that this fedid can access |
---|
| 2319 | """ |
---|
[e83f2f2] | 2320 | rv = { 'info': [ ], 'proof': [ ] } |
---|
[65f3f29] | 2321 | |
---|
[db6b092] | 2322 | self.state_lock.acquire() |
---|
| 2323 | for key in [ k for k in self.state.keys() if isinstance(k, fedid)]: |
---|
[829246e] | 2324 | try: |
---|
[e83f2f2] | 2325 | proof = self.check_experiment_access(fid, key) |
---|
[829246e] | 2326 | except service_error, e: |
---|
| 2327 | if e.code == service_error.access: |
---|
| 2328 | continue |
---|
| 2329 | else: |
---|
| 2330 | self.state_lock.release() |
---|
| 2331 | raise e |
---|
[65f3f29] | 2332 | |
---|
[db6b092] | 2333 | if self.state.has_key(key): |
---|
[29d5f7c] | 2334 | e = self.state[key].get_info() |
---|
| 2335 | e['proof'] = proof.to_dict() |
---|
[db6b092] | 2336 | rv['info'].append(e) |
---|
[e83f2f2] | 2337 | rv['proof'].append(proof.to_dict()) |
---|
[65f3f29] | 2338 | self.state_lock.release() |
---|
[db6b092] | 2339 | return rv |
---|
[65f3f29] | 2340 | |
---|
[cf0ff4f] | 2341 | def check_termination_status(self, fed_exp, force): |
---|
[e07c8f3] | 2342 | """ |
---|
[cf0ff4f] | 2343 | Confirm that the experiment is sin a valid state to stop (or force it) |
---|
| 2344 | return the state - invalid states for deletion and force settings cause |
---|
| 2345 | exceptions. |
---|
[e07c8f3] | 2346 | """ |
---|
[cf0ff4f] | 2347 | self.state_lock.acquire() |
---|
[29d5f7c] | 2348 | status = fed_exp.status |
---|
[e07c8f3] | 2349 | |
---|
[cf0ff4f] | 2350 | if status: |
---|
| 2351 | if status in ('starting', 'terminating'): |
---|
| 2352 | if not force: |
---|
| 2353 | self.state_lock.release() |
---|
| 2354 | raise service_error(service_error.partial, |
---|
| 2355 | 'Experiment still being created or destroyed') |
---|
| 2356 | else: |
---|
| 2357 | self.log.warning('Experiment in %s state ' % status + \ |
---|
| 2358 | 'being terminated by force.') |
---|
| 2359 | self.state_lock.release() |
---|
| 2360 | return status |
---|
[725c55d] | 2361 | else: |
---|
[cf0ff4f] | 2362 | # No status??? trouble |
---|
| 2363 | self.state_lock.release() |
---|
| 2364 | raise service_error(service_error.internal, |
---|
| 2365 | "Experiment has no status!?") |
---|
| 2366 | |
---|
[6e33086] | 2367 | def get_segment_info(self, fed_exp, need_lock=True): |
---|
[cf0ff4f] | 2368 | ids = [] |
---|
| 2369 | term_params = { } |
---|
[6e33086] | 2370 | if need_lock: self.state_lock.acquire() |
---|
[29d5f7c] | 2371 | ids = [ x for x in (fed_exp.localname, fed_exp.fedid) if x is not None ] |
---|
| 2372 | expcert = fed_exp.identity |
---|
| 2373 | repo = "%s" % fed_exp.fedid |
---|
[cf0ff4f] | 2374 | |
---|
| 2375 | # Collect the allocation/segment ids into a dict keyed by the fedid |
---|
[29d5f7c] | 2376 | # of the allocation that contains a tuple of uri, aid |
---|
| 2377 | for i, fed in enumerate(fed_exp.get_all_allocations()): |
---|
| 2378 | uri = fed.uri |
---|
| 2379 | aid = fed.allocID |
---|
| 2380 | term_params[aid] = (uri, aid) |
---|
[6e33086] | 2381 | if need_lock: self.state_lock.release() |
---|
| 2382 | return ids, term_params, expcert, repo |
---|
| 2383 | |
---|
| 2384 | |
---|
| 2385 | def get_termination_info(self, fed_exp): |
---|
| 2386 | self.state_lock.acquire() |
---|
| 2387 | ids, term_params, expcert, repo = self.get_segment_info(fed_exp, False) |
---|
[cf0ff4f] | 2388 | # Change the experiment state |
---|
[29d5f7c] | 2389 | fed_exp.status = 'terminating' |
---|
[6e33086] | 2390 | fed_exp.updated() |
---|
[cf0ff4f] | 2391 | if self.state_filename: self.write_state() |
---|
| 2392 | self.state_lock.release() |
---|
| 2393 | |
---|
| 2394 | return ids, term_params, expcert, repo |
---|
| 2395 | |
---|
| 2396 | |
---|
| 2397 | def deallocate_resources(self, term_params, expcert, status, force, |
---|
| 2398 | dealloc_log): |
---|
| 2399 | tmpdir = None |
---|
| 2400 | # This try block makes sure the tempdir is cleared |
---|
| 2401 | try: |
---|
| 2402 | # If no expcert, try the deallocation as the experiment |
---|
| 2403 | # controller instance. |
---|
| 2404 | if expcert and self.auth_type != 'legacy': |
---|
| 2405 | try: |
---|
| 2406 | tmpdir = tempfile.mkdtemp(prefix="term-") |
---|
| 2407 | except EnvironmentError: |
---|
| 2408 | raise service_error(service_error.internal, |
---|
| 2409 | "Cannot create tmp dir") |
---|
| 2410 | cert_file = self.make_temp_certfile(expcert, tmpdir) |
---|
| 2411 | pw = None |
---|
| 2412 | else: |
---|
| 2413 | cert_file = self.cert_file |
---|
| 2414 | pw = self.cert_pwd |
---|
| 2415 | |
---|
| 2416 | # Stop everyone. NB, wait_for_all waits until a thread starts |
---|
| 2417 | # and then completes, so we can't wait if nothing starts. So, |
---|
| 2418 | # no tbparams, no start. |
---|
| 2419 | if len(term_params) > 0: |
---|
| 2420 | tp = thread_pool(self.nthreads) |
---|
| 2421 | for k, (uri, aid) in term_params.items(): |
---|
| 2422 | # Create and start a thread to stop the segment |
---|
| 2423 | tp.wait_for_slot() |
---|
| 2424 | t = pooled_thread(\ |
---|
| 2425 | target=self.terminate_segment(log=dealloc_log, |
---|
| 2426 | testbed=uri, |
---|
| 2427 | cert_file=cert_file, |
---|
| 2428 | cert_pwd=pw, |
---|
| 2429 | trusted_certs=self.trusted_certs, |
---|
| 2430 | caller=self.call_TerminateSegment), |
---|
| 2431 | args=(uri, aid), name=k, |
---|
| 2432 | pdata=tp, trace_file=self.trace_file) |
---|
| 2433 | t.start() |
---|
| 2434 | # Wait for completions |
---|
| 2435 | tp.wait_for_all_done() |
---|
| 2436 | |
---|
| 2437 | # release the allocations (failed experiments have done this |
---|
| 2438 | # already, and starting experiments may be in odd states, so we |
---|
| 2439 | # ignore errors releasing those allocations |
---|
| 2440 | try: |
---|
| 2441 | for k, (uri, aid) in term_params.items(): |
---|
| 2442 | self.release_access(None, aid, uri=uri, |
---|
| 2443 | cert_file=cert_file, cert_pwd=pw) |
---|
| 2444 | except service_error, e: |
---|
| 2445 | if status != 'failed' and not force: |
---|
| 2446 | raise e |
---|
| 2447 | |
---|
| 2448 | # Clean up the tmpdir no matter what |
---|
| 2449 | finally: |
---|
| 2450 | if tmpdir: self.remove_dirs(tmpdir) |
---|
| 2451 | |
---|
[7a8d667] | 2452 | def terminate_experiment(self, req, fid): |
---|
[866c983] | 2453 | """ |
---|
| 2454 | Swap this experiment out on the federants and delete the shared |
---|
| 2455 | information |
---|
| 2456 | """ |
---|
| 2457 | tbparams = { } |
---|
| 2458 | req = req.get('TerminateRequestBody', None) |
---|
| 2459 | if not req: |
---|
| 2460 | raise service_error(service_error.req, |
---|
| 2461 | "Bad request format (no TerminateRequestBody)") |
---|
| 2462 | |
---|
[cf0ff4f] | 2463 | key = self.get_experiment_key(req, 'experiment') |
---|
[e83f2f2] | 2464 | proof = self.check_experiment_access(fid, key) |
---|
[cf0ff4f] | 2465 | exp = req.get('experiment', False) |
---|
| 2466 | force = req.get('force', False) |
---|
[866c983] | 2467 | |
---|
[db6b092] | 2468 | dealloc_list = [ ] |
---|
[46e4682] | 2469 | |
---|
| 2470 | |
---|
[5ae3857] | 2471 | # Create a logger that logs to the dealloc_list as well as to the main |
---|
| 2472 | # log file. |
---|
| 2473 | dealloc_log = logging.getLogger('fedd.experiment_control.%s' % key) |
---|
| 2474 | h = logging.StreamHandler(self.list_log(dealloc_list)) |
---|
| 2475 | # XXX: there should be a global one of these rather than repeating the |
---|
| 2476 | # code. |
---|
| 2477 | h.setFormatter(logging.Formatter("%(asctime)s %(name)s %(message)s", |
---|
| 2478 | '%d %b %y %H:%M:%S')) |
---|
| 2479 | dealloc_log.addHandler(h) |
---|
| 2480 | |
---|
| 2481 | self.state_lock.acquire() |
---|
| 2482 | fed_exp = self.state.get(key, None) |
---|
[cf0ff4f] | 2483 | self.state_lock.release() |
---|
[e07c8f3] | 2484 | repo = None |
---|
[5ae3857] | 2485 | |
---|
| 2486 | if fed_exp: |
---|
[cf0ff4f] | 2487 | status = self.check_termination_status(fed_exp, force) |
---|
[6e33086] | 2488 | # get_termination_info updates the experiment state |
---|
[cf0ff4f] | 2489 | ids, term_params, expcert, repo = self.get_termination_info(fed_exp) |
---|
| 2490 | self.deallocate_resources(term_params, expcert, status, force, |
---|
| 2491 | dealloc_log) |
---|
[5ae3857] | 2492 | |
---|
| 2493 | # Remove the terminated experiment |
---|
| 2494 | self.state_lock.acquire() |
---|
| 2495 | for id in ids: |
---|
[a96d946] | 2496 | self.clear_experiment_authorization(id, need_state_lock=False) |
---|
[cf0ff4f] | 2497 | if id in self.state: del self.state[id] |
---|
[5ae3857] | 2498 | |
---|
| 2499 | if self.state_filename: self.write_state() |
---|
| 2500 | self.state_lock.release() |
---|
| 2501 | |
---|
[2761484] | 2502 | # Delete any synch points associated with this experiment. All |
---|
| 2503 | # synch points begin with the fedid of the experiment. |
---|
| 2504 | fedid_keys = set(["fedid:%s" % f for f in ids \ |
---|
| 2505 | if isinstance(f, fedid)]) |
---|
| 2506 | for k in self.synch_store.all_keys(): |
---|
| 2507 | try: |
---|
| 2508 | if len(k) > 45 and k[0:46] in fedid_keys: |
---|
| 2509 | self.synch_store.del_value(k) |
---|
[dadc4da] | 2510 | except synch_store.BadDeletionError: |
---|
[2761484] | 2511 | pass |
---|
| 2512 | self.write_store() |
---|
[e07c8f3] | 2513 | |
---|
| 2514 | # Remove software and other cached stuff from the filesystem. |
---|
| 2515 | if repo: |
---|
| 2516 | self.remove_dirs("%s/%s" % (self.repodir, repo)) |
---|
[e83f2f2] | 2517 | |
---|
[5ae3857] | 2518 | return { |
---|
| 2519 | 'experiment': exp , |
---|
[cf0ff4f] | 2520 | 'deallocationLog': string.join(dealloc_list, ''), |
---|
[e83f2f2] | 2521 | 'proof': [proof.to_dict()], |
---|
[5ae3857] | 2522 | } |
---|
| 2523 | else: |
---|
| 2524 | raise service_error(service_error.req, "No saved state") |
---|
[2761484] | 2525 | |
---|
| 2526 | |
---|
| 2527 | def GetValue(self, req, fid): |
---|
| 2528 | """ |
---|
| 2529 | Get a value from the synchronized store |
---|
| 2530 | """ |
---|
| 2531 | req = req.get('GetValueRequestBody', None) |
---|
| 2532 | if not req: |
---|
| 2533 | raise service_error(service_error.req, |
---|
| 2534 | "Bad request format (no GetValueRequestBody)") |
---|
| 2535 | |
---|
[cf0ff4f] | 2536 | name = req.get('name', None) |
---|
| 2537 | wait = req.get('wait', False) |
---|
[2761484] | 2538 | rv = { 'name': name } |
---|
| 2539 | |
---|
[e83f2f2] | 2540 | if not name: |
---|
| 2541 | raise service_error(service_error.req, "No name?") |
---|
| 2542 | |
---|
| 2543 | access_ok, proof = self.auth.check_attribute(fid, name, with_proof=True) |
---|
| 2544 | |
---|
| 2545 | if access_ok: |
---|
[d8442da] | 2546 | self.log.debug("[GetValue] asking for %s " % name) |
---|
[dadc4da] | 2547 | try: |
---|
| 2548 | v = self.synch_store.get_value(name, wait) |
---|
| 2549 | except synch_store.RevokedKeyError: |
---|
| 2550 | # No more synch on this key |
---|
| 2551 | raise service_error(service_error.federant, |
---|
| 2552 | "Synch key %s revoked" % name) |
---|
[2761484] | 2553 | if v is not None: |
---|
| 2554 | rv['value'] = v |
---|
[e83f2f2] | 2555 | rv['proof'] = proof.to_dict() |
---|
[109a32a] | 2556 | self.log.debug("[GetValue] got %s from %s" % (v, name)) |
---|
[2761484] | 2557 | return rv |
---|
| 2558 | else: |
---|
[e83f2f2] | 2559 | raise service_error(service_error.access, "Access Denied", |
---|
| 2560 | proof=proof) |
---|
[2761484] | 2561 | |
---|
| 2562 | |
---|
| 2563 | def SetValue(self, req, fid): |
---|
| 2564 | """ |
---|
| 2565 | Set a value in the synchronized store |
---|
| 2566 | """ |
---|
| 2567 | req = req.get('SetValueRequestBody', None) |
---|
| 2568 | if not req: |
---|
| 2569 | raise service_error(service_error.req, |
---|
| 2570 | "Bad request format (no SetValueRequestBody)") |
---|
| 2571 | |
---|
[cf0ff4f] | 2572 | name = req.get('name', None) |
---|
| 2573 | v = req.get('value', '') |
---|
[2761484] | 2574 | |
---|
[e83f2f2] | 2575 | if not name: |
---|
| 2576 | raise service_error(service_error.req, "No name?") |
---|
| 2577 | |
---|
| 2578 | access_ok, proof = self.auth.check_attribute(fid, name, with_proof=True) |
---|
| 2579 | |
---|
| 2580 | if access_ok: |
---|
[2761484] | 2581 | try: |
---|
| 2582 | self.synch_store.set_value(name, v) |
---|
| 2583 | self.write_store() |
---|
[109a32a] | 2584 | self.log.debug("[SetValue] set %s to %s" % (name, v)) |
---|
[2761484] | 2585 | except synch_store.CollisionError: |
---|
| 2586 | # Translate into a service_error |
---|
| 2587 | raise service_error(service_error.req, |
---|
| 2588 | "Value already set: %s" %name) |
---|
[dadc4da] | 2589 | except synch_store.RevokedKeyError: |
---|
| 2590 | # No more synch on this key |
---|
| 2591 | raise service_error(service_error.federant, |
---|
| 2592 | "Synch key %s revoked" % name) |
---|
[e83f2f2] | 2593 | return { 'name': name, 'value': v, 'proof': proof.to_dict() } |
---|
[2761484] | 2594 | else: |
---|
[e83f2f2] | 2595 | raise service_error(service_error.access, "Access Denied", |
---|
| 2596 | proof=proof) |
---|