| 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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| 11 | import pickle |
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| 12 | import logging |
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| 13 | import signal |
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| 14 | import time |
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| 15 | |
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| 16 | import traceback |
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| 17 | # For parsing visualization output and splitter output |
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| 18 | import xml.parsers.expat |
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| 19 | |
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| 20 | from threading import Lock, Thread, Condition |
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| 21 | from subprocess import call, Popen, PIPE |
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| 22 | |
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| 23 | from urlparse import urlparse |
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| 24 | from urllib2 import urlopen |
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| 25 | |
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| 26 | from util import * |
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| 27 | from fedid import fedid, generate_fedid |
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| 28 | from remote_service import xmlrpc_handler, soap_handler, service_caller |
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| 29 | from service_error import service_error |
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| 30 | |
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| 31 | import topdl |
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| 32 | import list_log |
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| 33 | from ip_allocator import ip_allocator |
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| 34 | from ip_addr import ip_addr |
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| 35 | |
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| 36 | |
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| 37 | class nullHandler(logging.Handler): |
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| 38 | def emit(self, record): pass |
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| 39 | |
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| 40 | fl = logging.getLogger("fedd.experiment_control") |
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| 41 | fl.addHandler(nullHandler()) |
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| 42 | |
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| 43 | class experiment_control_local: |
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| 44 | """ |
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| 45 | Control of experiments that this system can directly access. |
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| 46 | |
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| 47 | Includes experiment creation, termination and information dissemination. |
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| 48 | Thred safe. |
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| 49 | """ |
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| 50 | |
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| 51 | class ssh_cmd_timeout(RuntimeError): pass |
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| 52 | |
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| 53 | class thread_pool: |
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| 54 | """ |
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| 55 | A class to keep track of a set of threads all invoked for the same |
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| 56 | task. Manages the mutual exclusion of the states. |
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| 57 | """ |
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| 58 | def __init__(self, nthreads): |
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| 59 | """ |
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| 60 | Start a pool. |
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| 61 | """ |
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| 62 | self.changed = Condition() |
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| 63 | self.started = 0 |
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| 64 | self.terminated = 0 |
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| 65 | self.nthreads = nthreads |
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| 66 | |
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| 67 | def acquire(self): |
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| 68 | """ |
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| 69 | Get the pool's lock. |
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| 70 | """ |
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| 71 | self.changed.acquire() |
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| 72 | |
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| 73 | def release(self): |
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| 74 | """ |
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| 75 | Release the pool's lock. |
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| 76 | """ |
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| 77 | self.changed.release() |
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| 78 | |
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| 79 | def wait(self, timeout = None): |
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| 80 | """ |
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| 81 | Wait for a pool thread to start or stop. |
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| 82 | """ |
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| 83 | self.changed.wait(timeout) |
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| 84 | |
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| 85 | def start(self): |
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| 86 | """ |
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| 87 | Called by a pool thread to report starting. |
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| 88 | """ |
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| 89 | self.changed.acquire() |
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| 90 | self.started += 1 |
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| 91 | self.changed.notifyAll() |
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| 92 | self.changed.release() |
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| 93 | |
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| 94 | def terminate(self): |
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| 95 | """ |
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| 96 | Called by a pool thread to report finishing. |
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| 97 | """ |
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| 98 | self.changed.acquire() |
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| 99 | self.terminated += 1 |
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| 100 | self.changed.notifyAll() |
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| 101 | self.changed.release() |
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| 102 | |
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| 103 | def clear(self): |
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| 104 | """ |
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| 105 | Clear all pool data. |
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| 106 | """ |
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| 107 | self.changed.acquire() |
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| 108 | self.started = 0 |
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| 109 | self.terminated =0 |
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| 110 | self.changed.notifyAll() |
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| 111 | self.changed.release() |
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| 112 | |
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| 113 | def wait_for_slot(self): |
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| 114 | """ |
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| 115 | Wait until we have a free slot to start another pooled thread |
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| 116 | """ |
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| 117 | self.acquire() |
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| 118 | while self.started - self.terminated >= self.nthreads: |
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| 119 | self.wait() |
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| 120 | self.release() |
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| 121 | |
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| 122 | def wait_for_all_done(self, timeout=None): |
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| 123 | """ |
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| 124 | Wait until all active threads finish (and at least one has |
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| 125 | started). If a timeout is given, return after waiting that long |
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| 126 | for termination. If all threads are done (and one has started in |
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| 127 | the since the last clear()) return True, otherwise False. |
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| 128 | """ |
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| 129 | if timeout: |
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| 130 | deadline = time.time() + timeout |
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| 131 | self.acquire() |
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| 132 | while self.started == 0 or self.started > self.terminated: |
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| 133 | self.wait(timeout) |
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| 134 | if timeout: |
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| 135 | if time.time() > deadline: |
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| 136 | break |
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| 137 | timeout = deadline - time.time() |
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| 138 | self.release() |
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| 139 | return not (self.started == 0 or self.started > self.terminated) |
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| 140 | |
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| 141 | class pooled_thread(Thread): |
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| 142 | """ |
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| 143 | One of a set of threads dedicated to a specific task. Uses the |
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| 144 | thread_pool class above for coordination. |
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| 145 | """ |
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| 146 | def __init__(self, group=None, target=None, name=None, args=(), |
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| 147 | kwargs={}, pdata=None, trace_file=None): |
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| 148 | Thread.__init__(self, group, target, name, args, kwargs) |
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| 149 | self.rv = None # Return value of the ops in this thread |
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| 150 | self.exception = None # Exception that terminated this thread |
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| 151 | self.target=target # Target function to run on start() |
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| 152 | self.args = args # Args to pass to target |
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| 153 | self.kwargs = kwargs # Additional kw args |
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| 154 | self.pdata = pdata # thread_pool for this class |
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| 155 | # Logger for this thread |
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| 156 | self.log = logging.getLogger("fedd.experiment_control") |
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| 157 | |
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| 158 | def run(self): |
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| 159 | """ |
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| 160 | Emulate Thread.run, except add pool data manipulation and error |
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| 161 | logging. |
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| 162 | """ |
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| 163 | if self.pdata: |
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| 164 | self.pdata.start() |
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| 165 | |
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| 166 | if self.target: |
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| 167 | try: |
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| 168 | self.rv = self.target(*self.args, **self.kwargs) |
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| 169 | except service_error, s: |
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| 170 | self.exception = s |
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| 171 | self.log.error("Thread exception: %s %s" % \ |
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| 172 | (s.code_string(), s.desc)) |
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| 173 | except: |
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| 174 | self.exception = sys.exc_info()[1] |
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| 175 | self.log.error(("Unexpected thread exception: %s" +\ |
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| 176 | "Trace %s") % (self.exception,\ |
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| 177 | traceback.format_exc())) |
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| 178 | if self.pdata: |
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| 179 | self.pdata.terminate() |
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| 180 | |
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| 181 | call_RequestAccess = service_caller('RequestAccess') |
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| 182 | call_ReleaseAccess = service_caller('ReleaseAccess') |
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| 183 | call_StartSegment = service_caller('StartSegment') |
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| 184 | call_TerminateSegment = service_caller('TerminateSegment') |
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| 185 | call_Ns2Split = service_caller('Ns2Split') |
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| 186 | |
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| 187 | def __init__(self, config=None, auth=None): |
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| 188 | """ |
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| 189 | Intialize the various attributes, most from the config object |
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| 190 | """ |
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| 191 | |
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| 192 | def parse_tarfile_list(tf): |
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| 193 | """ |
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| 194 | Parse a tarfile list from the configuration. This is a set of |
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| 195 | paths and tarfiles separated by spaces. |
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| 196 | """ |
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| 197 | rv = [ ] |
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| 198 | if tf is not None: |
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| 199 | tl = tf.split() |
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| 200 | while len(tl) > 1: |
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| 201 | p, t = tl[0:2] |
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| 202 | del tl[0:2] |
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| 203 | rv.append((p, t)) |
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| 204 | return rv |
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| 205 | |
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| 206 | self.thread_with_rv = experiment_control_local.pooled_thread |
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| 207 | self.thread_pool = experiment_control_local.thread_pool |
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| 208 | self.list_log = list_log.list_log |
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| 209 | |
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| 210 | self.cert_file = config.get("experiment_control", "cert_file") |
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| 211 | if self.cert_file: |
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| 212 | self.cert_pwd = config.get("experiment_control", "cert_pwd") |
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| 213 | else: |
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| 214 | self.cert_file = config.get("globals", "cert_file") |
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| 215 | self.cert_pwd = config.get("globals", "cert_pwd") |
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| 216 | |
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| 217 | self.trusted_certs = config.get("experiment_control", "trusted_certs") \ |
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| 218 | or config.get("globals", "trusted_certs") |
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| 219 | |
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| 220 | self.repodir = config.get("experiment_control", "repodir") |
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| 221 | |
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| 222 | self.exp_stem = "fed-stem" |
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| 223 | self.log = logging.getLogger("fedd.experiment_control") |
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| 224 | set_log_level(config, "experiment_control", self.log) |
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| 225 | self.muxmax = 2 |
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| 226 | self.nthreads = 2 |
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| 227 | self.randomize_experiments = False |
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| 228 | |
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| 229 | self.splitter = None |
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| 230 | self.ssh_keygen = "/usr/bin/ssh-keygen" |
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| 231 | self.ssh_identity_file = None |
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| 232 | |
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| 233 | |
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| 234 | self.debug = config.getboolean("experiment_control", "create_debug") |
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| 235 | self.state_filename = config.get("experiment_control", |
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| 236 | "experiment_state") |
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| 237 | self.splitter_url = config.get("experiment_control", "splitter_uri") |
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| 238 | self.fedkit = parse_tarfile_list(\ |
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| 239 | config.get("experiment_control", "fedkit")) |
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| 240 | self.gatewaykit = parse_tarfile_list(\ |
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| 241 | config.get("experiment_control", "gatewaykit")) |
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| 242 | accessdb_file = config.get("experiment_control", "accessdb") |
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| 243 | |
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| 244 | self.ssh_pubkey_file = config.get("experiment_control", |
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| 245 | "ssh_pubkey_file") |
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| 246 | self.ssh_privkey_file = config.get("experiment_control", |
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| 247 | "ssh_privkey_file") |
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| 248 | # NB for internal master/slave ops, not experiment setup |
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| 249 | self.ssh_type = config.get("experiment_control", "sshkeytype", "rsa") |
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| 250 | |
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| 251 | self.overrides = set([]) |
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| 252 | ovr = config.get('experiment_control', 'overrides') |
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| 253 | if ovr: |
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| 254 | for o in ovr.split(","): |
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| 255 | o = o.strip() |
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| 256 | if o.startswith('fedid:'): o = o[len('fedid:'):] |
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| 257 | self.overrides.add(fedid(hexstr=o)) |
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| 258 | |
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| 259 | self.state = { } |
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| 260 | self.state_lock = Lock() |
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| 261 | self.tclsh = "/usr/local/bin/otclsh" |
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| 262 | self.tcl_splitter = config.get("splitter", "tcl_splitter") or \ |
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| 263 | config.get("experiment_control", "tcl_splitter", |
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| 264 | "/usr/testbed/lib/ns2ir/parse.tcl") |
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| 265 | mapdb_file = config.get("experiment_control", "mapdb") |
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| 266 | self.trace_file = sys.stderr |
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| 267 | |
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| 268 | self.def_expstart = \ |
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| 269 | "sudo -H /bin/sh /usr/local/federation/bin/federate.sh >& " +\ |
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| 270 | "/tmp/federate"; |
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| 271 | self.def_mexpstart = "sudo -H /usr/local/federation/bin/make_hosts " +\ |
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| 272 | "FEDDIR/hosts"; |
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| 273 | self.def_gwstart = \ |
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| 274 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF>& " +\ |
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| 275 | "/tmp/bridge.log"; |
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| 276 | self.def_mgwstart = \ |
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| 277 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF >& " +\ |
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| 278 | "/tmp/bridge.log"; |
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| 279 | self.def_gwimage = "FBSD61-TUNNEL2"; |
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| 280 | self.def_gwtype = "pc"; |
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| 281 | self.local_access = { } |
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| 282 | |
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| 283 | if auth: |
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| 284 | self.auth = auth |
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| 285 | else: |
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| 286 | self.log.error(\ |
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| 287 | "[access]: No authorizer initialized, creating local one.") |
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| 288 | auth = authorizer() |
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| 289 | |
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| 290 | |
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| 291 | if self.ssh_pubkey_file: |
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| 292 | try: |
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| 293 | f = open(self.ssh_pubkey_file, 'r') |
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| 294 | self.ssh_pubkey = f.read() |
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| 295 | f.close() |
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| 296 | except IOError: |
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| 297 | raise service_error(service_error.internal, |
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| 298 | "Cannot read sshpubkey") |
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| 299 | else: |
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| 300 | raise service_error(service_error.internal, |
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| 301 | "No SSH public key file?") |
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| 302 | |
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| 303 | if not self.ssh_privkey_file: |
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| 304 | raise service_error(service_error.internal, |
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| 305 | "No SSH public key file?") |
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| 306 | |
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| 307 | |
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| 308 | if mapdb_file: |
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| 309 | self.read_mapdb(mapdb_file) |
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| 310 | else: |
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| 311 | self.log.warn("[experiment_control] No testbed map, using defaults") |
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| 312 | self.tbmap = { |
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| 313 | 'deter':'https://users.isi.deterlab.net:23235', |
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| 314 | 'emulab':'https://users.isi.deterlab.net:23236', |
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| 315 | 'ucb':'https://users.isi.deterlab.net:23237', |
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| 316 | } |
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| 317 | |
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| 318 | if accessdb_file: |
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| 319 | self.read_accessdb(accessdb_file) |
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| 320 | else: |
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| 321 | raise service_error(service_error.internal, |
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| 322 | "No accessdb specified in config") |
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| 323 | |
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| 324 | # Grab saved state. OK to do this w/o locking because it's read only |
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| 325 | # and only one thread should be in existence that can see self.state at |
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| 326 | # this point. |
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| 327 | if self.state_filename: |
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| 328 | self.read_state() |
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| 329 | |
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| 330 | # Dispatch tables |
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| 331 | self.soap_services = {\ |
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| 332 | 'Create': soap_handler('Create', self.create_experiment), |
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| 333 | 'Vtopo': soap_handler('Vtopo', self.get_vtopo), |
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| 334 | 'Vis': soap_handler('Vis', self.get_vis), |
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| 335 | 'Info': soap_handler('Info', self.get_info), |
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| 336 | 'MultiInfo': soap_handler('MultiInfo', self.get_multi_info), |
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| 337 | 'Terminate': soap_handler('Terminate', |
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| 338 | self.terminate_experiment), |
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| 339 | } |
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| 340 | |
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| 341 | self.xmlrpc_services = {\ |
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| 342 | 'Create': xmlrpc_handler('Create', self.create_experiment), |
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| 343 | 'Vtopo': xmlrpc_handler('Vtopo', self.get_vtopo), |
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| 344 | 'Vis': xmlrpc_handler('Vis', self.get_vis), |
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| 345 | 'Info': xmlrpc_handler('Info', self.get_info), |
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| 346 | 'MultiInfo': xmlrpc_handler('MultiInfo', self.get_multi_info), |
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| 347 | 'Terminate': xmlrpc_handler('Terminate', |
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| 348 | self.terminate_experiment), |
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| 349 | } |
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| 350 | |
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| 351 | # Call while holding self.state_lock |
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| 352 | def write_state(self): |
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| 353 | """ |
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| 354 | Write a new copy of experiment state after copying the existing state |
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| 355 | to a backup. |
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| 356 | |
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| 357 | State format is a simple pickling of the state dictionary. |
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| 358 | """ |
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| 359 | if os.access(self.state_filename, os.W_OK): |
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| 360 | copy_file(self.state_filename, \ |
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| 361 | "%s.bak" % self.state_filename) |
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| 362 | try: |
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| 363 | f = open(self.state_filename, 'w') |
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| 364 | pickle.dump(self.state, f) |
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| 365 | except IOError, e: |
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| 366 | self.log.error("Can't write file %s: %s" % \ |
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| 367 | (self.state_filename, e)) |
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| 368 | except pickle.PicklingError, e: |
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| 369 | self.log.error("Pickling problem: %s" % e) |
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| 370 | except TypeError, e: |
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| 371 | self.log.error("Pickling problem (TypeError): %s" % e) |
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| 372 | |
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| 373 | # Call while holding self.state_lock |
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| 374 | def read_state(self): |
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| 375 | """ |
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| 376 | Read a new copy of experiment state. Old state is overwritten. |
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| 377 | |
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| 378 | State format is a simple pickling of the state dictionary. |
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| 379 | """ |
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| 380 | |
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| 381 | def get_experiment_id(state): |
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| 382 | """ |
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| 383 | Pull the fedid experimentID out of the saved state. This is kind |
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| 384 | of a gross walk through the dict. |
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| 385 | """ |
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| 386 | |
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| 387 | if state.has_key('experimentID'): |
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| 388 | for e in state['experimentID']: |
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| 389 | if e.has_key('fedid'): |
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| 390 | return e['fedid'] |
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| 391 | else: |
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| 392 | return None |
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| 393 | else: |
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| 394 | return None |
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| 395 | |
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| 396 | def get_alloc_ids(state): |
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| 397 | """ |
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| 398 | Pull the fedids of the identifiers of each allocation from the |
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| 399 | state. Again, a dict dive that's best isolated. |
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| 400 | """ |
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| 401 | |
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| 402 | return [ f['allocID']['fedid'] |
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| 403 | for f in state.get('federant',[]) \ |
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| 404 | if f.has_key('allocID') and \ |
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| 405 | f['allocID'].has_key('fedid')] |
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| 406 | |
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| 407 | |
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| 408 | try: |
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| 409 | f = open(self.state_filename, "r") |
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| 410 | self.state = pickle.load(f) |
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| 411 | self.log.debug("[read_state]: Read state from %s" % \ |
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| 412 | self.state_filename) |
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| 413 | except IOError, e: |
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| 414 | self.log.warning("[read_state]: No saved state: Can't open %s: %s"\ |
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| 415 | % (self.state_filename, e)) |
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| 416 | except pickle.UnpicklingError, e: |
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| 417 | self.log.warning(("[read_state]: No saved state: " + \ |
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| 418 | "Unpickling failed: %s") % e) |
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| 419 | |
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| 420 | for s in self.state.values(): |
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| 421 | try: |
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| 422 | |
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| 423 | eid = get_experiment_id(s) |
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| 424 | if eid : |
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| 425 | # Give the owner rights to the experiment |
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| 426 | self.auth.set_attribute(s['owner'], eid) |
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| 427 | # And holders of the eid as well |
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| 428 | self.auth.set_attribute(eid, eid) |
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| 429 | # allow overrides to control experiments as well |
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| 430 | for o in self.overrides: |
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| 431 | self.auth.set_attribute(o, eid) |
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| 432 | # Set permissions to allow reading of the software repo, if |
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| 433 | # any, as well. |
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| 434 | for a in get_alloc_ids(s): |
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| 435 | self.auth.set_attribute(a, 'repo/%s' % eid) |
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| 436 | else: |
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| 437 | raise KeyError("No experiment id") |
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| 438 | except KeyError, e: |
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| 439 | self.log.warning("[read_state]: State ownership or identity " +\ |
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| 440 | "misformatted in %s: %s" % (self.state_filename, e)) |
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| 441 | |
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| 442 | |
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| 443 | def read_accessdb(self, accessdb_file): |
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| 444 | """ |
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| 445 | Read the mapping from fedids that can create experiments to their name |
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| 446 | in the 3-level access namespace. All will be asserted from this |
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| 447 | testbed and can include the local username and porject that will be |
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| 448 | asserted on their behalf by this fedd. Each fedid is also added to the |
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| 449 | authorization system with the "create" attribute. |
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| 450 | """ |
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| 451 | self.accessdb = {} |
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| 452 | # These are the regexps for parsing the db |
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| 453 | name_expr = "[" + string.ascii_letters + string.digits + "\.\-]+" |
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| 454 | project_line = re.compile("^\s*fedid:([" + string.hexdigits + "]+)"+ \ |
|---|
| 455 | "\s*->\(\s*("+name_expr+")\s*,\s*("+name_expr+")\s*\)\s*$") |
|---|
| 456 | user_line = re.compile("^\s*fedid:([" + string.hexdigits + "]+)"+ \ |
|---|
| 457 | "\s*->\s*(" + name_expr + ")\s*$") |
|---|
| 458 | lineno = 0 |
|---|
| 459 | |
|---|
| 460 | # Parse the mappings and store in self.authdb, a dict of |
|---|
| 461 | # fedid -> (proj, user) |
|---|
| 462 | try: |
|---|
| 463 | f = open(accessdb_file, "r") |
|---|
| 464 | for line in f: |
|---|
| 465 | lineno += 1 |
|---|
| 466 | line = line.strip() |
|---|
| 467 | if len(line) == 0 or line.startswith('#'): |
|---|
| 468 | continue |
|---|
| 469 | m = project_line.match(line) |
|---|
| 470 | if m: |
|---|
| 471 | fid = fedid(hexstr=m.group(1)) |
|---|
| 472 | project, user = m.group(2,3) |
|---|
| 473 | if not self.accessdb.has_key(fid): |
|---|
| 474 | self.accessdb[fid] = [] |
|---|
| 475 | self.accessdb[fid].append((project, user)) |
|---|
| 476 | continue |
|---|
| 477 | |
|---|
| 478 | m = user_line.match(line) |
|---|
| 479 | if m: |
|---|
| 480 | fid = fedid(hexstr=m.group(1)) |
|---|
| 481 | project = None |
|---|
| 482 | user = m.group(2) |
|---|
| 483 | if not self.accessdb.has_key(fid): |
|---|
| 484 | self.accessdb[fid] = [] |
|---|
| 485 | self.accessdb[fid].append((project, user)) |
|---|
| 486 | continue |
|---|
| 487 | self.log.warn("[experiment_control] Error parsing access " +\ |
|---|
| 488 | "db %s at line %d" % (accessdb_file, lineno)) |
|---|
| 489 | except IOError: |
|---|
| 490 | raise service_error(service_error.internal, |
|---|
| 491 | "Error opening/reading %s as experiment " +\ |
|---|
| 492 | "control accessdb" % accessdb_file) |
|---|
| 493 | f.close() |
|---|
| 494 | |
|---|
| 495 | # Initialize the authorization attributes |
|---|
| 496 | for fid in self.accessdb.keys(): |
|---|
| 497 | self.auth.set_attribute(fid, 'create') |
|---|
| 498 | |
|---|
| 499 | def read_mapdb(self, file): |
|---|
| 500 | """ |
|---|
| 501 | Read a simple colon separated list of mappings for the |
|---|
| 502 | label-to-testbed-URL mappings. Clears or creates self.tbmap. |
|---|
| 503 | """ |
|---|
| 504 | |
|---|
| 505 | self.tbmap = { } |
|---|
| 506 | lineno =0 |
|---|
| 507 | try: |
|---|
| 508 | f = open(file, "r") |
|---|
| 509 | for line in f: |
|---|
| 510 | lineno += 1 |
|---|
| 511 | line = line.strip() |
|---|
| 512 | if line.startswith('#') or len(line) == 0: |
|---|
| 513 | continue |
|---|
| 514 | try: |
|---|
| 515 | label, url = line.split(':', 1) |
|---|
| 516 | self.tbmap[label] = url |
|---|
| 517 | except ValueError, e: |
|---|
| 518 | self.log.warn("[read_mapdb] Ignored bad line (%d) in " +\ |
|---|
| 519 | "map db: %s %s" % (lineno, line, e)) |
|---|
| 520 | except IOError, e: |
|---|
| 521 | self.log.warning("[read_mapdb]: No saved map database: Can't " +\ |
|---|
| 522 | "open %s: %s" % (file, e)) |
|---|
| 523 | f.close() |
|---|
| 524 | |
|---|
| 525 | def generate_ssh_keys(self, dest, type="rsa" ): |
|---|
| 526 | """ |
|---|
| 527 | Generate a set of keys for the gateways to use to talk. |
|---|
| 528 | |
|---|
| 529 | Keys are of type type and are stored in the required dest file. |
|---|
| 530 | """ |
|---|
| 531 | valid_types = ("rsa", "dsa") |
|---|
| 532 | t = type.lower(); |
|---|
| 533 | if t not in valid_types: raise ValueError |
|---|
| 534 | cmd = [self.ssh_keygen, '-t', t, '-N', '', '-f', dest] |
|---|
| 535 | |
|---|
| 536 | try: |
|---|
| 537 | trace = open("/dev/null", "w") |
|---|
| 538 | except IOError: |
|---|
| 539 | raise service_error(service_error.internal, |
|---|
| 540 | "Cannot open /dev/null??"); |
|---|
| 541 | |
|---|
| 542 | # May raise CalledProcessError |
|---|
| 543 | self.log.debug("[generate_ssh_keys]: %s" % " ".join(cmd)) |
|---|
| 544 | rv = call(cmd, stdout=trace, stderr=trace, close_fds=True) |
|---|
| 545 | if rv != 0: |
|---|
| 546 | raise service_error(service_error.internal, |
|---|
| 547 | "Cannot generate nonce ssh keys. %s return code %d" \ |
|---|
| 548 | % (self.ssh_keygen, rv)) |
|---|
| 549 | |
|---|
| 550 | def gentopo(self, str): |
|---|
| 551 | """ |
|---|
| 552 | Generate the topology dtat structure from the splitter's XML |
|---|
| 553 | representation of it. |
|---|
| 554 | |
|---|
| 555 | The topology XML looks like: |
|---|
| 556 | <experiment> |
|---|
| 557 | <nodes> |
|---|
| 558 | <node><vname></vname><ips>ip1:ip2</ips></node> |
|---|
| 559 | </nodes> |
|---|
| 560 | <lans> |
|---|
| 561 | <lan> |
|---|
| 562 | <vname></vname><vnode></vnode><ip></ip> |
|---|
| 563 | <bandwidth></bandwidth><member>node:port</member> |
|---|
| 564 | </lan> |
|---|
| 565 | </lans> |
|---|
| 566 | """ |
|---|
| 567 | class topo_parse: |
|---|
| 568 | """ |
|---|
| 569 | Parse the topology XML and create the dats structure. |
|---|
| 570 | """ |
|---|
| 571 | def __init__(self): |
|---|
| 572 | # Typing of the subelements for data conversion |
|---|
| 573 | self.str_subelements = ('vname', 'vnode', 'ips', 'ip', 'member') |
|---|
| 574 | self.int_subelements = ( 'bandwidth',) |
|---|
| 575 | self.float_subelements = ( 'delay',) |
|---|
| 576 | # The final data structure |
|---|
| 577 | self.nodes = [ ] |
|---|
| 578 | self.lans = [ ] |
|---|
| 579 | self.topo = { \ |
|---|
| 580 | 'node': self.nodes,\ |
|---|
| 581 | 'lan' : self.lans,\ |
|---|
| 582 | } |
|---|
| 583 | self.element = { } # Current element being created |
|---|
| 584 | self.chars = "" # Last text seen |
|---|
| 585 | |
|---|
| 586 | def end_element(self, name): |
|---|
| 587 | # After each sub element the contents is added to the current |
|---|
| 588 | # element or to the appropriate list. |
|---|
| 589 | if name == 'node': |
|---|
| 590 | self.nodes.append(self.element) |
|---|
| 591 | self.element = { } |
|---|
| 592 | elif name == 'lan': |
|---|
| 593 | self.lans.append(self.element) |
|---|
| 594 | self.element = { } |
|---|
| 595 | elif name in self.str_subelements: |
|---|
| 596 | self.element[name] = self.chars |
|---|
| 597 | self.chars = "" |
|---|
| 598 | elif name in self.int_subelements: |
|---|
| 599 | self.element[name] = int(self.chars) |
|---|
| 600 | self.chars = "" |
|---|
| 601 | elif name in self.float_subelements: |
|---|
| 602 | self.element[name] = float(self.chars) |
|---|
| 603 | self.chars = "" |
|---|
| 604 | |
|---|
| 605 | def found_chars(self, data): |
|---|
| 606 | self.chars += data.rstrip() |
|---|
| 607 | |
|---|
| 608 | |
|---|
| 609 | tp = topo_parse(); |
|---|
| 610 | parser = xml.parsers.expat.ParserCreate() |
|---|
| 611 | parser.EndElementHandler = tp.end_element |
|---|
| 612 | parser.CharacterDataHandler = tp.found_chars |
|---|
| 613 | |
|---|
| 614 | parser.Parse(str) |
|---|
| 615 | |
|---|
| 616 | return tp.topo |
|---|
| 617 | |
|---|
| 618 | |
|---|
| 619 | def genviz(self, topo): |
|---|
| 620 | """ |
|---|
| 621 | Generate the visualization the virtual topology |
|---|
| 622 | """ |
|---|
| 623 | |
|---|
| 624 | neato = "/usr/local/bin/neato" |
|---|
| 625 | # These are used to parse neato output and to create the visualization |
|---|
| 626 | # file. |
|---|
| 627 | vis_re = re.compile('^\s*"?([\w\-]+)"?\s+\[.*pos="(\d+),(\d+)"') |
|---|
| 628 | vis_fmt = "<node><name>%s</name><x>%s</x><y>%s</y><type>" + \ |
|---|
| 629 | "%s</type></node>" |
|---|
| 630 | |
|---|
| 631 | try: |
|---|
| 632 | # Node names |
|---|
| 633 | nodes = [ n['vname'] for n in topo['node'] ] |
|---|
| 634 | topo_lans = topo['lan'] |
|---|
| 635 | except KeyError, e: |
|---|
| 636 | raise service_error(service_error.internal, "Bad topology: %s" %e) |
|---|
| 637 | |
|---|
| 638 | lans = { } |
|---|
| 639 | links = { } |
|---|
| 640 | |
|---|
| 641 | # Walk through the virtual topology, organizing the connections into |
|---|
| 642 | # 2-node connections (links) and more-than-2-node connections (lans). |
|---|
| 643 | # When a lan is created, it's added to the list of nodes (there's a |
|---|
| 644 | # node in the visualization for the lan). |
|---|
| 645 | for l in topo_lans: |
|---|
| 646 | if links.has_key(l['vname']): |
|---|
| 647 | if len(links[l['vname']]) < 2: |
|---|
| 648 | links[l['vname']].append(l['vnode']) |
|---|
| 649 | else: |
|---|
| 650 | nodes.append(l['vname']) |
|---|
| 651 | lans[l['vname']] = links[l['vname']] |
|---|
| 652 | del links[l['vname']] |
|---|
| 653 | lans[l['vname']].append(l['vnode']) |
|---|
| 654 | elif lans.has_key(l['vname']): |
|---|
| 655 | lans[l['vname']].append(l['vnode']) |
|---|
| 656 | else: |
|---|
| 657 | links[l['vname']] = [ l['vnode'] ] |
|---|
| 658 | |
|---|
| 659 | |
|---|
| 660 | # Open up a temporary file for dot to turn into a visualization |
|---|
| 661 | try: |
|---|
| 662 | df, dotname = tempfile.mkstemp() |
|---|
| 663 | dotfile = os.fdopen(df, 'w') |
|---|
| 664 | except IOError: |
|---|
| 665 | raise service_error(service_error.internal, |
|---|
| 666 | "Failed to open file in genviz") |
|---|
| 667 | |
|---|
| 668 | try: |
|---|
| 669 | dnull = open('/dev/null', 'w') |
|---|
| 670 | except IOError: |
|---|
| 671 | service_error(service_error.internal, |
|---|
| 672 | "Failed to open /dev/null in genviz") |
|---|
| 673 | |
|---|
| 674 | # Generate a dot/neato input file from the links, nodes and lans |
|---|
| 675 | try: |
|---|
| 676 | print >>dotfile, "graph G {" |
|---|
| 677 | for n in nodes: |
|---|
| 678 | print >>dotfile, '\t"%s"' % n |
|---|
| 679 | for l in links.keys(): |
|---|
| 680 | print >>dotfile, '\t"%s" -- "%s"' % tuple(links[l]) |
|---|
| 681 | for l in lans.keys(): |
|---|
| 682 | for n in lans[l]: |
|---|
| 683 | print >>dotfile, '\t "%s" -- "%s"' % (n,l) |
|---|
| 684 | print >>dotfile, "}" |
|---|
| 685 | dotfile.close() |
|---|
| 686 | except TypeError: |
|---|
| 687 | raise service_error(service_error.internal, |
|---|
| 688 | "Single endpoint link in vtopo") |
|---|
| 689 | except IOError: |
|---|
| 690 | raise service_error(service_error.internal, "Cannot write dot file") |
|---|
| 691 | |
|---|
| 692 | # Use dot to create a visualization |
|---|
| 693 | dot = Popen([neato, '-Gstart=rand', '-Gepsilon=0.005', '-Gmaxiter=2000', |
|---|
| 694 | '-Gpack=true', dotname], stdout=PIPE, stderr=dnull, |
|---|
| 695 | close_fds=True) |
|---|
| 696 | dnull.close() |
|---|
| 697 | |
|---|
| 698 | # Translate dot to vis format |
|---|
| 699 | vis_nodes = [ ] |
|---|
| 700 | vis = { 'node': vis_nodes } |
|---|
| 701 | for line in dot.stdout: |
|---|
| 702 | m = vis_re.match(line) |
|---|
| 703 | if m: |
|---|
| 704 | vn = m.group(1) |
|---|
| 705 | vis_node = {'name': vn, \ |
|---|
| 706 | 'x': float(m.group(2)),\ |
|---|
| 707 | 'y' : float(m.group(3)),\ |
|---|
| 708 | } |
|---|
| 709 | if vn in links.keys() or vn in lans.keys(): |
|---|
| 710 | vis_node['type'] = 'lan' |
|---|
| 711 | else: |
|---|
| 712 | vis_node['type'] = 'node' |
|---|
| 713 | vis_nodes.append(vis_node) |
|---|
| 714 | rv = dot.wait() |
|---|
| 715 | |
|---|
| 716 | os.remove(dotname) |
|---|
| 717 | if rv == 0 : return vis |
|---|
| 718 | else: return None |
|---|
| 719 | |
|---|
| 720 | def get_access(self, tb, nodes, user, tbparam, master, export_project, |
|---|
| 721 | access_user): |
|---|
| 722 | """ |
|---|
| 723 | Get access to testbed through fedd and set the parameters for that tb |
|---|
| 724 | """ |
|---|
| 725 | uri = self.tbmap.get(tb, None) |
|---|
| 726 | if not uri: |
|---|
| 727 | raise service_error(serice_error.server_config, |
|---|
| 728 | "Unknown testbed: %s" % tb) |
|---|
| 729 | |
|---|
| 730 | # currently this lumps all users into one service access group |
|---|
| 731 | service_keys = [ a for u in user \ |
|---|
| 732 | for a in u.get('access', []) \ |
|---|
| 733 | if a.has_key('sshPubkey')] |
|---|
| 734 | |
|---|
| 735 | if len(service_keys) == 0: |
|---|
| 736 | raise service_error(service_error.req, |
|---|
| 737 | "Must have at least one SSH pubkey for services") |
|---|
| 738 | |
|---|
| 739 | |
|---|
| 740 | for p, u in access_user: |
|---|
| 741 | self.log.debug(("[get_access] Attempting access from (%s, %s) " + \ |
|---|
| 742 | "to %s") % ((p or "None"), u, uri)) |
|---|
| 743 | |
|---|
| 744 | if p: |
|---|
| 745 | # Request with user and project specified |
|---|
| 746 | req = {\ |
|---|
| 747 | 'destinationTestbed' : { 'uri' : uri }, |
|---|
| 748 | 'project': { |
|---|
| 749 | 'name': {'localname': p}, |
|---|
| 750 | 'user': [ {'userID': { 'localname': u } } ], |
|---|
| 751 | }, |
|---|
| 752 | 'user': user, |
|---|
| 753 | 'allocID' : { 'localname': 'test' }, |
|---|
| 754 | 'createAccess' : [ { 'sshPubkey' : self.ssh_pubkey } ], |
|---|
| 755 | 'serviceAccess' : service_keys |
|---|
| 756 | } |
|---|
| 757 | else: |
|---|
| 758 | # Request with only user specified |
|---|
| 759 | req = {\ |
|---|
| 760 | 'destinationTestbed' : { 'uri' : uri }, |
|---|
| 761 | 'user': [ {'userID': { 'localname': u } } ], |
|---|
| 762 | 'allocID' : { 'localname': 'test' }, |
|---|
| 763 | 'createAccess' : [ { 'sshPubkey' : self.ssh_pubkey } ], |
|---|
| 764 | 'serviceAccess' : service_keys |
|---|
| 765 | } |
|---|
| 766 | |
|---|
| 767 | if tb == master: |
|---|
| 768 | # NB, the export_project parameter is a dict that includes |
|---|
| 769 | # the type |
|---|
| 770 | req['exportProject'] = export_project |
|---|
| 771 | |
|---|
| 772 | # node resources if any |
|---|
| 773 | if nodes != None and len(nodes) > 0: |
|---|
| 774 | rnodes = [ ] |
|---|
| 775 | for n in nodes: |
|---|
| 776 | rn = { } |
|---|
| 777 | image, hw, count = n.split(":") |
|---|
| 778 | if image: rn['image'] = [ image ] |
|---|
| 779 | if hw: rn['hardware'] = [ hw ] |
|---|
| 780 | if count and int(count) >0 : rn['count'] = int(count) |
|---|
| 781 | rnodes.append(rn) |
|---|
| 782 | req['resources']= { } |
|---|
| 783 | req['resources']['node'] = rnodes |
|---|
| 784 | |
|---|
| 785 | try: |
|---|
| 786 | if self.local_access.has_key(uri): |
|---|
| 787 | # Local access call |
|---|
| 788 | req = { 'RequestAccessRequestBody' : req } |
|---|
| 789 | r = self.local_access[uri].RequestAccess(req, |
|---|
| 790 | fedid(file=self.cert_file)) |
|---|
| 791 | r = { 'RequestAccessResponseBody' : r } |
|---|
| 792 | else: |
|---|
| 793 | r = self.call_RequestAccess(uri, req, |
|---|
| 794 | self.cert_file, self.cert_pwd, self.trusted_certs) |
|---|
| 795 | except service_error, e: |
|---|
| 796 | if e.code == service_error.access: |
|---|
| 797 | self.log.debug("[get_access] Access denied") |
|---|
| 798 | r = None |
|---|
| 799 | continue |
|---|
| 800 | else: |
|---|
| 801 | raise e |
|---|
| 802 | |
|---|
| 803 | if r.has_key('RequestAccessResponseBody'): |
|---|
| 804 | # Through to here we have a valid response, not a fault. |
|---|
| 805 | # Access denied is a fault, so something better or worse than |
|---|
| 806 | # access denied has happened. |
|---|
| 807 | r = r['RequestAccessResponseBody'] |
|---|
| 808 | self.log.debug("[get_access] Access granted") |
|---|
| 809 | break |
|---|
| 810 | else: |
|---|
| 811 | raise service_error(service_error.protocol, |
|---|
| 812 | "Bad proxy response") |
|---|
| 813 | |
|---|
| 814 | if not r: |
|---|
| 815 | raise service_error(service_error.access, |
|---|
| 816 | "Access denied by %s (%s)" % (tb, uri)) |
|---|
| 817 | |
|---|
| 818 | e = r['emulab'] |
|---|
| 819 | p = e['project'] |
|---|
| 820 | tbparam[tb] = { |
|---|
| 821 | "boss": e['boss'], |
|---|
| 822 | "host": e['ops'], |
|---|
| 823 | "domain": e['domain'], |
|---|
| 824 | "fs": e['fileServer'], |
|---|
| 825 | "eventserver": e['eventServer'], |
|---|
| 826 | "project": unpack_id(p['name']), |
|---|
| 827 | "emulab" : e, |
|---|
| 828 | "allocID" : r['allocID'], |
|---|
| 829 | } |
|---|
| 830 | # Make the testbed name be the label the user applied |
|---|
| 831 | p['testbed'] = {'localname': tb } |
|---|
| 832 | |
|---|
| 833 | for u in p['user']: |
|---|
| 834 | role = u.get('role', None) |
|---|
| 835 | if role == 'experimentCreation': |
|---|
| 836 | tbparam[tb]['user'] = unpack_id(u['userID']) |
|---|
| 837 | break |
|---|
| 838 | else: |
|---|
| 839 | raise service_error(service_error.internal, |
|---|
| 840 | "No createExperimentUser from %s" %tb) |
|---|
| 841 | |
|---|
| 842 | # Add attributes to barameter space. We don't allow attributes to |
|---|
| 843 | # overlay any parameters already installed. |
|---|
| 844 | for a in e['fedAttr']: |
|---|
| 845 | try: |
|---|
| 846 | if a['attribute'] and isinstance(a['attribute'], basestring)\ |
|---|
| 847 | and not tbparam[tb].has_key(a['attribute'].lower()): |
|---|
| 848 | tbparam[tb][a['attribute'].lower()] = a['value'] |
|---|
| 849 | except KeyError: |
|---|
| 850 | self.log.error("Bad attribute in response: %s" % a) |
|---|
| 851 | |
|---|
| 852 | def release_access(self, tb, aid): |
|---|
| 853 | """ |
|---|
| 854 | Release access to testbed through fedd |
|---|
| 855 | """ |
|---|
| 856 | |
|---|
| 857 | uri = self.tbmap.get(tb, None) |
|---|
| 858 | if not uri: |
|---|
| 859 | raise service_error(serice_error.server_config, |
|---|
| 860 | "Unknown testbed: %s" % tb) |
|---|
| 861 | |
|---|
| 862 | if self.local_access.has_key(uri): |
|---|
| 863 | resp = self.local_access[uri].ReleaseAccess(\ |
|---|
| 864 | { 'ReleaseAccessRequestBody' : {'allocID': aid},}, |
|---|
| 865 | fedid(file=self.cert_file)) |
|---|
| 866 | resp = { 'ReleaseAccessResponseBody': resp } |
|---|
| 867 | else: |
|---|
| 868 | resp = self.call_ReleaseAccess(uri, {'allocID': aid}, |
|---|
| 869 | self.cert_file, self.cert_pwd, self.trusted_certs) |
|---|
| 870 | |
|---|
| 871 | # better error coding |
|---|
| 872 | |
|---|
| 873 | def remote_splitter(self, uri, desc, master): |
|---|
| 874 | |
|---|
| 875 | req = { |
|---|
| 876 | 'description' : { 'ns2description': desc }, |
|---|
| 877 | 'master': master, |
|---|
| 878 | 'include_fedkit': bool(self.fedkit), |
|---|
| 879 | 'include_gatewaykit': bool(self.gatewaykit) |
|---|
| 880 | } |
|---|
| 881 | |
|---|
| 882 | r = self.call_Ns2Split(uri, req, self.cert_file, self.cert_pwd, |
|---|
| 883 | self.trusted_certs) |
|---|
| 884 | |
|---|
| 885 | if r.has_key('Ns2SplitResponseBody'): |
|---|
| 886 | r = r['Ns2SplitResponseBody'] |
|---|
| 887 | if r.has_key('output'): |
|---|
| 888 | return r['output'].splitlines() |
|---|
| 889 | else: |
|---|
| 890 | raise service_error(service_error.protocol, |
|---|
| 891 | "Bad splitter response (no output)") |
|---|
| 892 | else: |
|---|
| 893 | raise service_error(service_error.protocol, "Bad splitter response") |
|---|
| 894 | |
|---|
| 895 | class start_segment: |
|---|
| 896 | def __init__(self, debug=False, log=None, testbed="", cert_file=None, |
|---|
| 897 | cert_pwd=None, trusted_certs=None, caller=None, |
|---|
| 898 | log_collector=None): |
|---|
| 899 | self.log = log |
|---|
| 900 | self.debug = debug |
|---|
| 901 | self.cert_file = cert_file |
|---|
| 902 | self.cert_pwd = cert_pwd |
|---|
| 903 | self.trusted_certs = None |
|---|
| 904 | self.caller = caller |
|---|
| 905 | self.testbed = testbed |
|---|
| 906 | self.log_collector = log_collector |
|---|
| 907 | |
|---|
| 908 | def __call__(self, uri, aid, topo, master, attrs=None): |
|---|
| 909 | req = { |
|---|
| 910 | 'allocID': { 'fedid' : aid }, |
|---|
| 911 | 'segmentdescription': { |
|---|
| 912 | 'topdldescription': topo.to_dict(), |
|---|
| 913 | }, |
|---|
| 914 | 'master': master, |
|---|
| 915 | } |
|---|
| 916 | if attrs: |
|---|
| 917 | req['fedAttr'] = attrs |
|---|
| 918 | |
|---|
| 919 | try: |
|---|
| 920 | r = self.caller(uri, req, self.cert_file, self.cert_pwd, |
|---|
| 921 | self.trusted_certs) |
|---|
| 922 | if r.has_key('StartSegmentResponseBody'): |
|---|
| 923 | lval = r['StartSegmentResponseBody'].get('allocationLog', |
|---|
| 924 | None) |
|---|
| 925 | if lval and self.log_collector: |
|---|
| 926 | for line in lval.splitlines(True): |
|---|
| 927 | self.log_collector.write(line) |
|---|
| 928 | else: |
|---|
| 929 | raise service_error(service_error.internal, |
|---|
| 930 | "Bad response!?: %s" %r) |
|---|
| 931 | return True |
|---|
| 932 | except service_error, e: |
|---|
| 933 | self.log.error("Start segment failed on %s: %s" % \ |
|---|
| 934 | (self.testbed, e)) |
|---|
| 935 | return False |
|---|
| 936 | |
|---|
| 937 | |
|---|
| 938 | |
|---|
| 939 | class terminate_segment: |
|---|
| 940 | def __init__(self, debug=False, log=None, testbed="", cert_file=None, |
|---|
| 941 | cert_pwd=None, trusted_certs=None, caller=None): |
|---|
| 942 | self.log = log |
|---|
| 943 | self.debug = debug |
|---|
| 944 | self.cert_file = cert_file |
|---|
| 945 | self.cert_pwd = cert_pwd |
|---|
| 946 | self.trusted_certs = None |
|---|
| 947 | self.caller = caller |
|---|
| 948 | self.testbed = testbed |
|---|
| 949 | |
|---|
| 950 | def __call__(self, uri, aid ): |
|---|
| 951 | req = { |
|---|
| 952 | 'allocID': aid , |
|---|
| 953 | } |
|---|
| 954 | try: |
|---|
| 955 | r = self.caller(uri, req, self.cert_file, self.cert_pwd, |
|---|
| 956 | self.trusted_certs) |
|---|
| 957 | return True |
|---|
| 958 | except service_error, e: |
|---|
| 959 | self.log.error("Terminate segment failed on %s: %s" % \ |
|---|
| 960 | (self.testbed, e)) |
|---|
| 961 | return False |
|---|
| 962 | |
|---|
| 963 | |
|---|
| 964 | def allocate_resources(self, allocated, master, eid, expid, expcert, |
|---|
| 965 | tbparams, topo, tmpdir, alloc_log=None, log_collector=None, |
|---|
| 966 | attrs=None): |
|---|
| 967 | started = { } # Testbeds where a sub-experiment started |
|---|
| 968 | # successfully |
|---|
| 969 | |
|---|
| 970 | # XXX |
|---|
| 971 | fail_soft = False |
|---|
| 972 | |
|---|
| 973 | log = alloc_log or self.log |
|---|
| 974 | |
|---|
| 975 | thread_pool = self.thread_pool(self.nthreads) |
|---|
| 976 | threads = [ ] |
|---|
| 977 | |
|---|
| 978 | for tb in [ k for k in allocated.keys() if k != master]: |
|---|
| 979 | # Create and start a thread to start the segment, and save it to |
|---|
| 980 | # get the return value later |
|---|
| 981 | thread_pool.wait_for_slot() |
|---|
| 982 | uri = self.tbmap.get(tb, None) |
|---|
| 983 | if not uri: |
|---|
| 984 | raise service_error(service_error.internal, |
|---|
| 985 | "Unknown testbed %s !?" % tb) |
|---|
| 986 | |
|---|
| 987 | if tbparams[tb].has_key('allocID') and \ |
|---|
| 988 | tbparams[tb]['allocID'].has_key('fedid'): |
|---|
| 989 | aid = tbparams[tb]['allocID']['fedid'] |
|---|
| 990 | else: |
|---|
| 991 | raise service_error(service_error.internal, |
|---|
| 992 | "No alloc id for testbed %s !?" % tb) |
|---|
| 993 | |
|---|
| 994 | t = self.pooled_thread(\ |
|---|
| 995 | target=self.start_segment(log=log, debug=self.debug, |
|---|
| 996 | testbed=tb, cert_file=self.cert_file, |
|---|
| 997 | cert_pwd=self.cert_pwd, |
|---|
| 998 | trusted_certs=self.trusted_certs, |
|---|
| 999 | caller=self.call_StartSegment, |
|---|
| 1000 | log_collector=log_collector), |
|---|
| 1001 | args=(uri, aid, topo[tb], False, attrs), name=tb, |
|---|
| 1002 | pdata=thread_pool, trace_file=self.trace_file) |
|---|
| 1003 | threads.append(t) |
|---|
| 1004 | t.start() |
|---|
| 1005 | |
|---|
| 1006 | # Wait until all finish (keep pinging the log, though) |
|---|
| 1007 | mins = 0 |
|---|
| 1008 | while not thread_pool.wait_for_all_done(60.0): |
|---|
| 1009 | mins += 1 |
|---|
| 1010 | alloc_log.info("Waiting for sub threads (it has been %d mins)" \ |
|---|
| 1011 | % mins) |
|---|
| 1012 | |
|---|
| 1013 | thread_pool.clear() |
|---|
| 1014 | |
|---|
| 1015 | # If none failed, start the master |
|---|
| 1016 | failed = [ t.getName() for t in threads if not t.rv ] |
|---|
| 1017 | |
|---|
| 1018 | if len(failed) == 0: |
|---|
| 1019 | uri = self.tbmap.get(master, None) |
|---|
| 1020 | if not uri: |
|---|
| 1021 | raise service_error(service_error.internal, |
|---|
| 1022 | "Unknown testbed %s !?" % master) |
|---|
| 1023 | |
|---|
| 1024 | if tbparams[master].has_key('allocID') and \ |
|---|
| 1025 | tbparams[master]['allocID'].has_key('fedid'): |
|---|
| 1026 | aid = tbparams[master]['allocID']['fedid'] |
|---|
| 1027 | else: |
|---|
| 1028 | raise service_error(service_error.internal, |
|---|
| 1029 | "No alloc id for testbed %s !?" % master) |
|---|
| 1030 | t = self.pooled_thread( |
|---|
| 1031 | target=self.start_segment(log=log, debug=self.debug, |
|---|
| 1032 | testbed=master, cert_file=self.cert_file, |
|---|
| 1033 | cert_pwd=self.cert_pwd, |
|---|
| 1034 | trusted_certs=self.trusted_certs, |
|---|
| 1035 | caller=self.call_StartSegment, |
|---|
| 1036 | log_collector=log_collector), |
|---|
| 1037 | args =(uri, aid, topo[master], True, attrs), |
|---|
| 1038 | name=master, pdata=thread_pool, trace_file=self.trace_file) |
|---|
| 1039 | threads.append(t) |
|---|
| 1040 | t.start() |
|---|
| 1041 | # Wait until the master finishes (keep pinging the log, though) |
|---|
| 1042 | mins = 0 |
|---|
| 1043 | while not thread_pool.wait_for_all_done(60.0): |
|---|
| 1044 | mins += 1 |
|---|
| 1045 | alloc_log.info("Waiting for master (it has been %d mins)" \ |
|---|
| 1046 | % mins) |
|---|
| 1047 | # update failed to include the master, if it failed |
|---|
| 1048 | failed = [ t.getName() for t in threads if not t.rv ] |
|---|
| 1049 | |
|---|
| 1050 | succeeded = [tb for tb in allocated.keys() if tb not in failed] |
|---|
| 1051 | # If one failed clean up, unless fail_soft is set |
|---|
| 1052 | if failed: |
|---|
| 1053 | if not fail_soft: |
|---|
| 1054 | thread_pool.clear() |
|---|
| 1055 | for tb in succeeded: |
|---|
| 1056 | # Create and start a thread to stop the segment |
|---|
| 1057 | thread_pool.wait_for_slot() |
|---|
| 1058 | uri = self.tbmap.get(tb, None) |
|---|
| 1059 | t = self.pooled_thread(\ |
|---|
| 1060 | target=self.terminate_segment(log=log, |
|---|
| 1061 | testbed=tb, |
|---|
| 1062 | cert_file=self.cert_file, |
|---|
| 1063 | cert_pwd=self.cert_pwd, |
|---|
| 1064 | trusted_certs=self.trusted_certs, |
|---|
| 1065 | caller=self.call_TerminateSegment), |
|---|
| 1066 | args=(uri, tbparams[tb]['federant']['allocID']), |
|---|
| 1067 | name=tb, |
|---|
| 1068 | pdata=thread_pool, trace_file=self.trace_file) |
|---|
| 1069 | t.start() |
|---|
| 1070 | # Wait until all finish |
|---|
| 1071 | thread_pool.wait_for_all_done() |
|---|
| 1072 | |
|---|
| 1073 | # release the allocations |
|---|
| 1074 | for tb in tbparams.keys(): |
|---|
| 1075 | self.release_access(tb, tbparams[tb]['allocID']) |
|---|
| 1076 | # Remove the placeholder |
|---|
| 1077 | self.state_lock.acquire() |
|---|
| 1078 | self.state[eid]['experimentStatus'] = 'failed' |
|---|
| 1079 | if self.state_filename: self.write_state() |
|---|
| 1080 | self.state_lock.release() |
|---|
| 1081 | |
|---|
| 1082 | log.error("Swap in failed on %s" % ",".join(failed)) |
|---|
| 1083 | return |
|---|
| 1084 | else: |
|---|
| 1085 | log.info("[start_segment]: Experiment %s active" % eid) |
|---|
| 1086 | |
|---|
| 1087 | log.debug("[start_experiment]: removing %s" % tmpdir) |
|---|
| 1088 | |
|---|
| 1089 | # Walk up tmpdir, deleting as we go |
|---|
| 1090 | for path, dirs, files in os.walk(tmpdir, topdown=False): |
|---|
| 1091 | for f in files: |
|---|
| 1092 | os.remove(os.path.join(path, f)) |
|---|
| 1093 | for d in dirs: |
|---|
| 1094 | os.rmdir(os.path.join(path, d)) |
|---|
| 1095 | os.rmdir(tmpdir) |
|---|
| 1096 | |
|---|
| 1097 | # Insert the experiment into our state and update the disk copy |
|---|
| 1098 | self.state_lock.acquire() |
|---|
| 1099 | self.state[expid]['experimentStatus'] = 'active' |
|---|
| 1100 | self.state[eid] = self.state[expid] |
|---|
| 1101 | if self.state_filename: self.write_state() |
|---|
| 1102 | self.state_lock.release() |
|---|
| 1103 | return |
|---|
| 1104 | |
|---|
| 1105 | |
|---|
| 1106 | def add_kit(self, e, kit): |
|---|
| 1107 | """ |
|---|
| 1108 | Add a Software object created from the list of (install, location) |
|---|
| 1109 | tuples passed as kit to the software attribute of an object e. We |
|---|
| 1110 | do this enough to break out the code, but it's kind of a hack to |
|---|
| 1111 | avoid changing the old tuple rep. |
|---|
| 1112 | """ |
|---|
| 1113 | |
|---|
| 1114 | s = [ topdl.Software(install=i, location=l) for i, l in kit] |
|---|
| 1115 | |
|---|
| 1116 | if isinstance(e.software, list): e.software.extend(s) |
|---|
| 1117 | else: e.software = s |
|---|
| 1118 | |
|---|
| 1119 | |
|---|
| 1120 | def create_experiment_state(self, fid, req, expid, expcert): |
|---|
| 1121 | """ |
|---|
| 1122 | Create the initial entry in the experiment's state. The expid and |
|---|
| 1123 | expcert are the experiment's fedid and certifacte that represents that |
|---|
| 1124 | ID, which are installed in the experiment state. If the request |
|---|
| 1125 | includes a suggested local name that is used if possible. If the local |
|---|
| 1126 | name is already taken by an experiment owned by this user that has |
|---|
| 1127 | failed, it is overwriutten. Otherwise new letters are added until a |
|---|
| 1128 | valid localname is found. The generated local name is returned. |
|---|
| 1129 | """ |
|---|
| 1130 | |
|---|
| 1131 | if req.has_key('experimentID') and \ |
|---|
| 1132 | req['experimentID'].has_key('localname'): |
|---|
| 1133 | overwrite = False |
|---|
| 1134 | eid = req['experimentID']['localname'] |
|---|
| 1135 | # If there's an old failed experiment here with the same local name |
|---|
| 1136 | # and accessible by this user, we'll overwrite it, otherwise we'll |
|---|
| 1137 | # fall through and do the collision avoidance. |
|---|
| 1138 | old_expid = self.get_experiment_fedid(eid) |
|---|
| 1139 | if old_expid and self.check_experiment_access(fid, old_expid): |
|---|
| 1140 | self.state_lock.acquire() |
|---|
| 1141 | status = self.state[eid].get('experimentStatus', None) |
|---|
| 1142 | if status and status == 'failed': |
|---|
| 1143 | # remove the old access attribute |
|---|
| 1144 | self.auth.unset_attribute(fid, old_expid) |
|---|
| 1145 | overwrite = True |
|---|
| 1146 | del self.state[eid] |
|---|
| 1147 | del self.state[old_expid] |
|---|
| 1148 | self.state_lock.release() |
|---|
| 1149 | self.state_lock.acquire() |
|---|
| 1150 | while (self.state.has_key(eid) and not overwrite): |
|---|
| 1151 | eid += random.choice(string.ascii_letters) |
|---|
| 1152 | # Initial state |
|---|
| 1153 | self.state[eid] = { |
|---|
| 1154 | 'experimentID' : \ |
|---|
| 1155 | [ { 'localname' : eid }, {'fedid': expid } ], |
|---|
| 1156 | 'experimentStatus': 'starting', |
|---|
| 1157 | 'experimentAccess': { 'X509' : expcert }, |
|---|
| 1158 | 'owner': fid, |
|---|
| 1159 | 'log' : [], |
|---|
| 1160 | } |
|---|
| 1161 | self.state[expid] = self.state[eid] |
|---|
| 1162 | if self.state_filename: self.write_state() |
|---|
| 1163 | self.state_lock.release() |
|---|
| 1164 | else: |
|---|
| 1165 | eid = self.exp_stem |
|---|
| 1166 | for i in range(0,5): |
|---|
| 1167 | eid += random.choice(string.ascii_letters) |
|---|
| 1168 | self.state_lock.acquire() |
|---|
| 1169 | while (self.state.has_key(eid)): |
|---|
| 1170 | eid = self.exp_stem |
|---|
| 1171 | for i in range(0,5): |
|---|
| 1172 | eid += random.choice(string.ascii_letters) |
|---|
| 1173 | # Initial state |
|---|
| 1174 | self.state[eid] = { |
|---|
| 1175 | 'experimentID' : \ |
|---|
| 1176 | [ { 'localname' : eid }, {'fedid': expid } ], |
|---|
| 1177 | 'experimentStatus': 'starting', |
|---|
| 1178 | 'experimentAccess': { 'X509' : expcert }, |
|---|
| 1179 | 'owner': fid, |
|---|
| 1180 | 'log' : [], |
|---|
| 1181 | } |
|---|
| 1182 | self.state[expid] = self.state[eid] |
|---|
| 1183 | if self.state_filename: self.write_state() |
|---|
| 1184 | self.state_lock.release() |
|---|
| 1185 | |
|---|
| 1186 | return eid |
|---|
| 1187 | |
|---|
| 1188 | |
|---|
| 1189 | def allocate_ips_to_topo(self, top): |
|---|
| 1190 | """ |
|---|
| 1191 | Add an ip4_address attribute to all the hosts in teh topology, based on |
|---|
| 1192 | the shared substrates on which they sit. An /etc/hosts file is also |
|---|
| 1193 | created and returned as a list of hostfiles entries. |
|---|
| 1194 | """ |
|---|
| 1195 | subs = sorted(top.substrates, |
|---|
| 1196 | cmp=lambda x,y: cmp(len(x.interfaces), len(y.interfaces)), |
|---|
| 1197 | reverse=True) |
|---|
| 1198 | ips = ip_allocator(int(ip_addr("10.0.0.0")), 2 **24) |
|---|
| 1199 | ifs = { } |
|---|
| 1200 | hosts = [ ] |
|---|
| 1201 | |
|---|
| 1202 | for idx, s in enumerate(subs): |
|---|
| 1203 | a = ips.allocate(len(s.interfaces)+2) |
|---|
| 1204 | if a : |
|---|
| 1205 | base, num = a |
|---|
| 1206 | if num < len(s.interfaces) +2 : |
|---|
| 1207 | raise service_error(service_error.internal, |
|---|
| 1208 | "Allocator returned wrong number of IPs??") |
|---|
| 1209 | else: |
|---|
| 1210 | raise service_error(service_error.req, |
|---|
| 1211 | "Cannot allocate IP addresses") |
|---|
| 1212 | |
|---|
| 1213 | base += 1 |
|---|
| 1214 | for i in s.interfaces: |
|---|
| 1215 | i.attribute.append( |
|---|
| 1216 | topdl.Attribute('ip4_address', |
|---|
| 1217 | "%s" % ip_addr(base))) |
|---|
| 1218 | hname = i.element.name[0] |
|---|
| 1219 | if ifs.has_key(hname): |
|---|
| 1220 | hosts.append("%s\t%s-%s %s-%d" % \ |
|---|
| 1221 | (ip_addr(base), hname, s.name, hname, |
|---|
| 1222 | ifs[hname])) |
|---|
| 1223 | else: |
|---|
| 1224 | ifs[hname] = 0 |
|---|
| 1225 | hosts.append("%s\t%s-%s %s-%d %s" % \ |
|---|
| 1226 | (ip_addr(base), hname, s.name, hname, |
|---|
| 1227 | ifs[hname], hname)) |
|---|
| 1228 | |
|---|
| 1229 | ifs[hname] += 1 |
|---|
| 1230 | base += 1 |
|---|
| 1231 | return hosts |
|---|
| 1232 | |
|---|
| 1233 | def get_access_to_testbeds(self, testbeds, user, access_user, |
|---|
| 1234 | export_project, master, allocated, tbparams): |
|---|
| 1235 | """ |
|---|
| 1236 | Request access to the various testbeds required for this instantiation |
|---|
| 1237 | (passed in as testbeds). User, access_user, expoert_project and master |
|---|
| 1238 | are used to construct the correct requests. Per-testbed parameters are |
|---|
| 1239 | returned in tbparams. |
|---|
| 1240 | """ |
|---|
| 1241 | for tb in testbeds: |
|---|
| 1242 | self.get_access(tb, None, user, tbparams, master, |
|---|
| 1243 | export_project, access_user) |
|---|
| 1244 | allocated[tb] = 1 |
|---|
| 1245 | |
|---|
| 1246 | def split_topology(self, top, topo, testbeds, eid, master, tbparams): |
|---|
| 1247 | """ |
|---|
| 1248 | Create the sub-topologies that are needed for experimetn instantiation. |
|---|
| 1249 | Along the way attach startup commands to the computers in the |
|---|
| 1250 | subtopologies. |
|---|
| 1251 | """ |
|---|
| 1252 | for tb in testbeds: |
|---|
| 1253 | topo[tb] = top.clone() |
|---|
| 1254 | to_delete = [ ] |
|---|
| 1255 | for e in topo[tb].elements: |
|---|
| 1256 | etb = e.get_attribute('testbed') |
|---|
| 1257 | if etb and etb != tb: |
|---|
| 1258 | for i in e.interface: |
|---|
| 1259 | for s in i.subs: |
|---|
| 1260 | try: |
|---|
| 1261 | s.interfaces.remove(i) |
|---|
| 1262 | except ValueError: |
|---|
| 1263 | raise service_error(service_error.internal, |
|---|
| 1264 | "Can't remove interface??") |
|---|
| 1265 | to_delete.append(e) |
|---|
| 1266 | for e in to_delete: |
|---|
| 1267 | topo[tb].elements.remove(e) |
|---|
| 1268 | topo[tb].make_indices() |
|---|
| 1269 | |
|---|
| 1270 | for e in [ e for e in topo[tb].elements \ |
|---|
| 1271 | if isinstance(e,topdl.Computer)]: |
|---|
| 1272 | if tb == master: |
|---|
| 1273 | cmd = 'sudo -H /usr/local/federation/bin/make_hosts /proj/%s/exp/%s/tmp/hosts >& /tmp/federate' % (tbparams[tb].get('project', 'project'), eid) |
|---|
| 1274 | else: |
|---|
| 1275 | cmd = "sudo -H /bin/sh /usr/local/federation/bin/federate.sh >& /tmp/federate" |
|---|
| 1276 | scmd = e.get_attribute('startup') |
|---|
| 1277 | if scmd: |
|---|
| 1278 | cmd = "%s \\$USER '%s'" % (cmd, scmd) |
|---|
| 1279 | |
|---|
| 1280 | e.set_attribute('startup', cmd) |
|---|
| 1281 | if self.fedkit: self.add_kit(e, self.fedkit) |
|---|
| 1282 | |
|---|
| 1283 | def add_portals(self, top, topo, eid, master, tbparams): |
|---|
| 1284 | """ |
|---|
| 1285 | For each substrate in the main topology, find those that |
|---|
| 1286 | have nodes on more than one testbed. Insert portal nodes |
|---|
| 1287 | into the copies of those substrates on the sub topologies. |
|---|
| 1288 | """ |
|---|
| 1289 | for s in top.substrates: |
|---|
| 1290 | # tbs will contain an ip address on this subsrate that is in |
|---|
| 1291 | # each testbed. |
|---|
| 1292 | tbs = { } |
|---|
| 1293 | for i in s.interfaces: |
|---|
| 1294 | e = i.element |
|---|
| 1295 | tb = e.get_attribute('testbed') |
|---|
| 1296 | if tb and not tbs.has_key(tb): |
|---|
| 1297 | for i in e.interface: |
|---|
| 1298 | if s in i.subs: |
|---|
| 1299 | tbs[tb]= i.get_attribute('ip4_address') |
|---|
| 1300 | if len(tbs) < 2: |
|---|
| 1301 | continue |
|---|
| 1302 | |
|---|
| 1303 | # More than one testbed is on this substrate. Insert |
|---|
| 1304 | # some portals into the subtopologies. st == source testbed, |
|---|
| 1305 | # dt == destination testbed. |
|---|
| 1306 | segment_substrate = { } |
|---|
| 1307 | for st in tbs.keys(): |
|---|
| 1308 | segment_substrate[st] = { } |
|---|
| 1309 | for dt in [ t for t in tbs.keys() if t != st]: |
|---|
| 1310 | myname = "%stunnel" % dt |
|---|
| 1311 | desthost = "%stunnel" % st |
|---|
| 1312 | sproject = tbparams[st].get('project', 'project') |
|---|
| 1313 | dproject = tbparams[dt].get('project', 'project') |
|---|
| 1314 | mproject = tbparams[master].get('project', 'project') |
|---|
| 1315 | sdomain = tbparams[st].get('domain', ".example.com") |
|---|
| 1316 | ddomain = tbparams[dt].get('domain', ".example.com") |
|---|
| 1317 | mdomain = tbparams[master].get('domain', '.example.com') |
|---|
| 1318 | muser = tbparams[master].get('user', 'root') |
|---|
| 1319 | smbshare = tbparams[master].get('smbshare', 'USERS') |
|---|
| 1320 | # XXX: active and type need to be unkludged |
|---|
| 1321 | active = ("%s" % (st == master)) |
|---|
| 1322 | if not segment_substrate[st].has_key(dt): |
|---|
| 1323 | # Put a substrate and a segment for the connected |
|---|
| 1324 | # testbed in there. |
|---|
| 1325 | tsubstrate = \ |
|---|
| 1326 | topdl.Substrate(name='%s-%s' % (st, dt), |
|---|
| 1327 | attribute= [ |
|---|
| 1328 | topdl.Attribute( |
|---|
| 1329 | attribute='portal', |
|---|
| 1330 | value='true') |
|---|
| 1331 | ] |
|---|
| 1332 | ) |
|---|
| 1333 | segment_element = topdl.Segment( |
|---|
| 1334 | id= tbparams[dt]['allocID'], |
|---|
| 1335 | type='emulab', |
|---|
| 1336 | uri = self.tbmap.get(dt, None), |
|---|
| 1337 | interface=[ |
|---|
| 1338 | topdl.Interface( |
|---|
| 1339 | substrate=tsubstrate.name), |
|---|
| 1340 | ], |
|---|
| 1341 | attribute = [ |
|---|
| 1342 | topdl.Attribute(attribute=n, value=v) |
|---|
| 1343 | for n, v in (\ |
|---|
| 1344 | ('domain', ddomain), |
|---|
| 1345 | ('experiment', "%s/%s" % \ |
|---|
| 1346 | (dproject, eid)),) |
|---|
| 1347 | ], |
|---|
| 1348 | ) |
|---|
| 1349 | segment_substrate[st][dt] = tsubstrate |
|---|
| 1350 | topo[st].substrates.append(tsubstrate) |
|---|
| 1351 | topo[st].elements.append(segment_element) |
|---|
| 1352 | portal = topdl.Computer( |
|---|
| 1353 | name="%stunnel" % dt, |
|---|
| 1354 | attribute=[ |
|---|
| 1355 | topdl.Attribute(attribute=n,value=v) |
|---|
| 1356 | for n, v in (\ |
|---|
| 1357 | ('portal', 'true'), |
|---|
| 1358 | ('domain', sdomain), |
|---|
| 1359 | ('masterdomain', mdomain), |
|---|
| 1360 | ('masterexperiment', "%s/%s" % \ |
|---|
| 1361 | (mproject, eid)), |
|---|
| 1362 | ('masteruser', muser), |
|---|
| 1363 | ('smbshare', smbshare), |
|---|
| 1364 | ('experiment', "%s/%s" % \ |
|---|
| 1365 | (sproject, eid)), |
|---|
| 1366 | ('peer', "%s" % desthost), |
|---|
| 1367 | ('peer_segment', "%s" % \ |
|---|
| 1368 | tbparams[dt]['allocID']['fedid']), |
|---|
| 1369 | ('scriptdir', |
|---|
| 1370 | "/usr/local/federation/bin"), |
|---|
| 1371 | ('active', "%s" % active), |
|---|
| 1372 | ('portal_type', 'both'), |
|---|
| 1373 | ('startup', 'sudo -H /usr/local/federation/bin/fed-tun.pl -f /proj/%s/exp/%s/tmp/%s.%s.%s%s.gw.conf >& /tmp/bridge.log' % (sproject, eid, myname.lower(), eid.lower(), sproject.lower(), sdomain.lower()))) |
|---|
| 1374 | ], |
|---|
| 1375 | interface=[ |
|---|
| 1376 | topdl.Interface( |
|---|
| 1377 | substrate=s.name, |
|---|
| 1378 | attribute=[ |
|---|
| 1379 | topdl.Attribute( |
|---|
| 1380 | attribute='ip4_address', |
|---|
| 1381 | value=tbs[dt] |
|---|
| 1382 | ) |
|---|
| 1383 | ]), |
|---|
| 1384 | topdl.Interface( |
|---|
| 1385 | substrate=\ |
|---|
| 1386 | segment_substrate[st][dt].name, |
|---|
| 1387 | attribute=[ |
|---|
| 1388 | topdl.Attribute(attribute='portal', |
|---|
| 1389 | value='true') |
|---|
| 1390 | ] |
|---|
| 1391 | ), |
|---|
| 1392 | ], |
|---|
| 1393 | ) |
|---|
| 1394 | if self.fedkit: self.add_kit(portal, self.fedkit) |
|---|
| 1395 | if self.gatewaykit: self.add_kit(portal, self.gatewaykit) |
|---|
| 1396 | |
|---|
| 1397 | topo[st].elements.append(portal) |
|---|
| 1398 | |
|---|
| 1399 | # Connect the gateway nodes into the topologies and clear out |
|---|
| 1400 | # substrates that are not in the topologies |
|---|
| 1401 | for tb in tbparams.keys(): |
|---|
| 1402 | topo[tb].incorporate_elements() |
|---|
| 1403 | topo[tb].substrates = \ |
|---|
| 1404 | [s for s in topo[tb].substrates \ |
|---|
| 1405 | if len(s.interfaces) >0] |
|---|
| 1406 | |
|---|
| 1407 | def wrangle_software(self, expid, top, topo, tbparams): |
|---|
| 1408 | """ |
|---|
| 1409 | Copy software out to the repository directory, allocate permissions and |
|---|
| 1410 | rewrite the segment topologies to look for the software in local |
|---|
| 1411 | places. |
|---|
| 1412 | """ |
|---|
| 1413 | |
|---|
| 1414 | # Copy the rpms and tarfiles to a distribution directory from |
|---|
| 1415 | # which the federants can retrieve them |
|---|
| 1416 | linkpath = "%s/software" % expid |
|---|
| 1417 | softdir ="%s/%s" % ( self.repodir, linkpath) |
|---|
| 1418 | softmap = { } |
|---|
| 1419 | # These are in a list of tuples format (each kit). This comprehension |
|---|
| 1420 | # unwraps them into a single list of tuples that initilaizes the set of |
|---|
| 1421 | # tuples. |
|---|
| 1422 | pkgs = set([ t for l in [self.fedkit, self.gatewaykit] \ |
|---|
| 1423 | for p, t in l ]) |
|---|
| 1424 | pkgs.update([x.location for e in top.elements \ |
|---|
| 1425 | for x in e.software]) |
|---|
| 1426 | try: |
|---|
| 1427 | os.makedirs(softdir) |
|---|
| 1428 | except IOError, e: |
|---|
| 1429 | raise service_error( |
|---|
| 1430 | "Cannot create software directory: %s" % e) |
|---|
| 1431 | # The actual copying. Everything's converted into a url for copying. |
|---|
| 1432 | for pkg in pkgs: |
|---|
| 1433 | loc = pkg |
|---|
| 1434 | |
|---|
| 1435 | scheme, host, path = urlparse(loc)[0:3] |
|---|
| 1436 | dest = os.path.basename(path) |
|---|
| 1437 | if not scheme: |
|---|
| 1438 | if not loc.startswith('/'): |
|---|
| 1439 | loc = "/%s" % loc |
|---|
| 1440 | loc = "file://%s" %loc |
|---|
| 1441 | try: |
|---|
| 1442 | u = urlopen(loc) |
|---|
| 1443 | except Exception, e: |
|---|
| 1444 | raise service_error(service_error.req, |
|---|
| 1445 | "Cannot open %s: %s" % (loc, e)) |
|---|
| 1446 | try: |
|---|
| 1447 | f = open("%s/%s" % (softdir, dest) , "w") |
|---|
| 1448 | self.log.debug("Writing %s/%s" % (softdir,dest) ) |
|---|
| 1449 | data = u.read(4096) |
|---|
| 1450 | while data: |
|---|
| 1451 | f.write(data) |
|---|
| 1452 | data = u.read(4096) |
|---|
| 1453 | f.close() |
|---|
| 1454 | u.close() |
|---|
| 1455 | except Exception, e: |
|---|
| 1456 | raise service_error(service_error.internal, |
|---|
| 1457 | "Could not copy %s: %s" % (loc, e)) |
|---|
| 1458 | path = re.sub("/tmp", "", linkpath) |
|---|
| 1459 | # XXX |
|---|
| 1460 | softmap[pkg] = \ |
|---|
| 1461 | "https://users.isi.deterlab.net:23232/%s/%s" %\ |
|---|
| 1462 | ( path, dest) |
|---|
| 1463 | |
|---|
| 1464 | # Allow the individual segments to access the software. |
|---|
| 1465 | for tb in tbparams.keys(): |
|---|
| 1466 | self.auth.set_attribute(tbparams[tb]['allocID']['fedid'], |
|---|
| 1467 | "/%s/%s" % ( path, dest)) |
|---|
| 1468 | |
|---|
| 1469 | # Convert the software locations in the segments into the local |
|---|
| 1470 | # copies on this host |
|---|
| 1471 | for soft in [ s for tb in topo.values() \ |
|---|
| 1472 | for e in tb.elements \ |
|---|
| 1473 | if getattr(e, 'software', False) \ |
|---|
| 1474 | for s in e.software ]: |
|---|
| 1475 | if softmap.has_key(soft.location): |
|---|
| 1476 | soft.location = softmap[soft.location] |
|---|
| 1477 | |
|---|
| 1478 | |
|---|
| 1479 | def create_experiment(self, req, fid): |
|---|
| 1480 | """ |
|---|
| 1481 | The external interface to experiment creation called from the |
|---|
| 1482 | dispatcher. |
|---|
| 1483 | |
|---|
| 1484 | Creates a working directory, splits the incoming description using the |
|---|
| 1485 | splitter script and parses out the avrious subsections using the |
|---|
| 1486 | lcasses above. Once each sub-experiment is created, use pooled threads |
|---|
| 1487 | to instantiate them and start it all up. |
|---|
| 1488 | """ |
|---|
| 1489 | if not self.auth.check_attribute(fid, 'create'): |
|---|
| 1490 | raise service_error(service_error.access, "Create access denied") |
|---|
| 1491 | |
|---|
| 1492 | try: |
|---|
| 1493 | tmpdir = tempfile.mkdtemp(prefix="split-") |
|---|
| 1494 | os.mkdir(tmpdir+"/keys") |
|---|
| 1495 | except IOError: |
|---|
| 1496 | raise service_error(service_error.internal, "Cannot create tmp dir") |
|---|
| 1497 | |
|---|
| 1498 | gw_pubkey_base = "fed.%s.pub" % self.ssh_type |
|---|
| 1499 | gw_secretkey_base = "fed.%s" % self.ssh_type |
|---|
| 1500 | gw_pubkey = tmpdir + "/keys/" + gw_pubkey_base |
|---|
| 1501 | gw_secretkey = tmpdir + "/keys/" + gw_secretkey_base |
|---|
| 1502 | tclfile = tmpdir + "/experiment.tcl" |
|---|
| 1503 | tbparams = { } |
|---|
| 1504 | try: |
|---|
| 1505 | access_user = self.accessdb[fid] |
|---|
| 1506 | except KeyError: |
|---|
| 1507 | raise service_error(service_error.internal, |
|---|
| 1508 | "Access map and authorizer out of sync in " + \ |
|---|
| 1509 | "create_experiment for fedid %s" % fid) |
|---|
| 1510 | |
|---|
| 1511 | pid = "dummy" |
|---|
| 1512 | gid = "dummy" |
|---|
| 1513 | |
|---|
| 1514 | req = req.get('CreateRequestBody', None) |
|---|
| 1515 | if not req: |
|---|
| 1516 | raise service_error(service_error.req, |
|---|
| 1517 | "Bad request format (no CreateRequestBody)") |
|---|
| 1518 | # The tcl parser needs to read a file so put the content into that file |
|---|
| 1519 | descr=req.get('experimentdescription', None) |
|---|
| 1520 | if descr: |
|---|
| 1521 | file_content=descr.get('ns2description', None) |
|---|
| 1522 | if file_content: |
|---|
| 1523 | try: |
|---|
| 1524 | f = open(tclfile, 'w') |
|---|
| 1525 | f.write(file_content) |
|---|
| 1526 | f.close() |
|---|
| 1527 | except IOError: |
|---|
| 1528 | raise service_error(service_error.internal, |
|---|
| 1529 | "Cannot write temp experiment description") |
|---|
| 1530 | else: |
|---|
| 1531 | raise service_error(service_error.req, |
|---|
| 1532 | "Only ns2descriptions supported") |
|---|
| 1533 | else: |
|---|
| 1534 | raise service_error(service_error.req, "No experiment description") |
|---|
| 1535 | |
|---|
| 1536 | # Generate an ID for the experiment (slice) and a certificate that the |
|---|
| 1537 | # allocator can use to prove they own it. We'll ship it back through |
|---|
| 1538 | # the encrypted connection. |
|---|
| 1539 | (expid, expcert) = generate_fedid("test", dir=tmpdir, log=self.log) |
|---|
| 1540 | |
|---|
| 1541 | eid = self.create_experiment_state(fid, req, expid, expcert) |
|---|
| 1542 | try: |
|---|
| 1543 | # This catches exceptions to clear the placeholder if necessary |
|---|
| 1544 | try: |
|---|
| 1545 | self.generate_ssh_keys(gw_secretkey, self.ssh_type) |
|---|
| 1546 | except ValueError: |
|---|
| 1547 | raise service_error(service_error.server_config, |
|---|
| 1548 | "Bad key type (%s)" % self.ssh_type) |
|---|
| 1549 | |
|---|
| 1550 | user = req.get('user', None) |
|---|
| 1551 | if user == None: |
|---|
| 1552 | raise service_error(service_error.req, "No user") |
|---|
| 1553 | |
|---|
| 1554 | master = req.get('master', None) |
|---|
| 1555 | if not master: |
|---|
| 1556 | raise service_error(service_error.req, |
|---|
| 1557 | "No master testbed label") |
|---|
| 1558 | export_project = req.get('exportProject', None) |
|---|
| 1559 | if not export_project: |
|---|
| 1560 | raise service_error(service_error.req, "No export project") |
|---|
| 1561 | |
|---|
| 1562 | # Translate to topdl |
|---|
| 1563 | if self.splitter_url: |
|---|
| 1564 | # XXX: need remote topdl translator |
|---|
| 1565 | self.log.debug("Calling remote splitter at %s" % \ |
|---|
| 1566 | self.splitter_url) |
|---|
| 1567 | split_data = self.remote_splitter(self.splitter_url, |
|---|
| 1568 | file_content, master) |
|---|
| 1569 | else: |
|---|
| 1570 | tclcmd = [self.tclsh, self.tcl_splitter, '-t', '-x', |
|---|
| 1571 | str(self.muxmax), '-m', master] |
|---|
| 1572 | |
|---|
| 1573 | if self.fedkit: |
|---|
| 1574 | tclcmd.append('-k') |
|---|
| 1575 | |
|---|
| 1576 | if self.gatewaykit: |
|---|
| 1577 | tclcmd.append('-K') |
|---|
| 1578 | |
|---|
| 1579 | tclcmd.extend([pid, gid, eid, tclfile]) |
|---|
| 1580 | |
|---|
| 1581 | self.log.debug("running local splitter %s", " ".join(tclcmd)) |
|---|
| 1582 | # This is just fantastic. As a side effect the parser copies |
|---|
| 1583 | # tb_compat.tcl into the current directory, so that directory |
|---|
| 1584 | # must be writable by the fedd user. Doing this in the |
|---|
| 1585 | # temporary subdir ensures this is the case. |
|---|
| 1586 | tclparser = Popen(tclcmd, stdout=PIPE, close_fds=True, |
|---|
| 1587 | cwd=tmpdir) |
|---|
| 1588 | split_data = tclparser.stdout |
|---|
| 1589 | |
|---|
| 1590 | top = topdl.topology_from_xml(file=split_data, top="experiment") |
|---|
| 1591 | |
|---|
| 1592 | hosts = self.allocate_ips_to_topo(top) |
|---|
| 1593 | # Find the testbeds to look up |
|---|
| 1594 | testbeds = set([ a.value for e in top.elements \ |
|---|
| 1595 | for a in e.attribute \ |
|---|
| 1596 | if a.attribute == 'testbed'] ) |
|---|
| 1597 | |
|---|
| 1598 | allocated = { } # Testbeds we can access |
|---|
| 1599 | topo ={ } # Sub topologies |
|---|
| 1600 | self.get_access_to_testbeds(testbeds, user, access_user, |
|---|
| 1601 | export_project, master, allocated, tbparams) |
|---|
| 1602 | self.split_topology(top, topo, testbeds, eid, master, tbparams) |
|---|
| 1603 | |
|---|
| 1604 | # Copy configuration files into the remote file store |
|---|
| 1605 | # The config urlpath |
|---|
| 1606 | configpath = "/%s/config" % expid |
|---|
| 1607 | # The config file system location |
|---|
| 1608 | configdir ="%s%s" % ( self.repodir, configpath) |
|---|
| 1609 | try: |
|---|
| 1610 | os.makedirs(configdir) |
|---|
| 1611 | except IOError, e: |
|---|
| 1612 | raise service_error( |
|---|
| 1613 | "Cannot create config directory: %s" % e) |
|---|
| 1614 | try: |
|---|
| 1615 | f = open("%s/hosts" % configdir, "w") |
|---|
| 1616 | f.write('\n'.join(hosts)) |
|---|
| 1617 | f.close() |
|---|
| 1618 | except IOError, e: |
|---|
| 1619 | raise service_error(service_error.internal, |
|---|
| 1620 | "Cannot write hosts file: %s" % e) |
|---|
| 1621 | try: |
|---|
| 1622 | copy_file("%s" % gw_pubkey, "%s/%s" % \ |
|---|
| 1623 | (configdir, gw_pubkey_base)) |
|---|
| 1624 | copy_file("%s" % gw_secretkey, "%s/%s" % \ |
|---|
| 1625 | (configdir, gw_secretkey_base)) |
|---|
| 1626 | except IOError, e: |
|---|
| 1627 | raise service_error(service_error.internal, |
|---|
| 1628 | "Cannot copy keyfiles: %s" % e) |
|---|
| 1629 | |
|---|
| 1630 | # Allow the individual testbeds to access the configuration files. |
|---|
| 1631 | for tb in tbparams.keys(): |
|---|
| 1632 | asignee = tbparams[tb]['allocID']['fedid'] |
|---|
| 1633 | for f in ("hosts", gw_secretkey_base, gw_pubkey_base): |
|---|
| 1634 | self.auth.set_attribute(asignee, "%s/%s" % (configpath, f)) |
|---|
| 1635 | |
|---|
| 1636 | self.add_portals(top, topo, eid, master, tbparams) |
|---|
| 1637 | self.wrangle_software(expid, top, topo, tbparams) |
|---|
| 1638 | |
|---|
| 1639 | vtopo = topdl.topology_to_vtopo(top) |
|---|
| 1640 | vis = self.genviz(vtopo) |
|---|
| 1641 | |
|---|
| 1642 | # save federant information |
|---|
| 1643 | for k in allocated.keys(): |
|---|
| 1644 | tbparams[k]['federant'] = {\ |
|---|
| 1645 | 'name': [ { 'localname' : eid} ],\ |
|---|
| 1646 | 'emulab': tbparams[k]['emulab'],\ |
|---|
| 1647 | 'allocID' : tbparams[k]['allocID'],\ |
|---|
| 1648 | 'master' : k == master,\ |
|---|
| 1649 | } |
|---|
| 1650 | |
|---|
| 1651 | self.state_lock.acquire() |
|---|
| 1652 | self.state[eid]['vtopo'] = vtopo |
|---|
| 1653 | self.state[eid]['vis'] = vis |
|---|
| 1654 | self.state[expid]['federant'] = \ |
|---|
| 1655 | [ tbparams[tb]['federant'] for tb in tbparams.keys() \ |
|---|
| 1656 | if tbparams[tb].has_key('federant') ] |
|---|
| 1657 | if self.state_filename: |
|---|
| 1658 | self.write_state() |
|---|
| 1659 | self.state_lock.release() |
|---|
| 1660 | except service_error, e: |
|---|
| 1661 | # If something goes wrong in the parse (usually an access error) |
|---|
| 1662 | # clear the placeholder state. From here on out the code delays |
|---|
| 1663 | # exceptions. Failing at this point returns a fault to the remote |
|---|
| 1664 | # caller. |
|---|
| 1665 | |
|---|
| 1666 | self.state_lock.acquire() |
|---|
| 1667 | del self.state[eid] |
|---|
| 1668 | del self.state[expid] |
|---|
| 1669 | if self.state_filename: self.write_state() |
|---|
| 1670 | self.state_lock.release() |
|---|
| 1671 | raise e |
|---|
| 1672 | |
|---|
| 1673 | |
|---|
| 1674 | # Start the background swapper and return the starting state. From |
|---|
| 1675 | # here on out, the state will stick around a while. |
|---|
| 1676 | |
|---|
| 1677 | # Let users touch the state |
|---|
| 1678 | self.auth.set_attribute(fid, expid) |
|---|
| 1679 | self.auth.set_attribute(expid, expid) |
|---|
| 1680 | # Override fedids can manipulate state as well |
|---|
| 1681 | for o in self.overrides: |
|---|
| 1682 | self.auth.set_attribute(o, expid) |
|---|
| 1683 | |
|---|
| 1684 | # Create a logger that logs to the experiment's state object as well as |
|---|
| 1685 | # to the main log file. |
|---|
| 1686 | alloc_log = logging.getLogger('fedd.experiment_control.%s' % eid) |
|---|
| 1687 | alloc_collector = self.list_log(self.state[eid]['log']) |
|---|
| 1688 | h = logging.StreamHandler(alloc_collector) |
|---|
| 1689 | # XXX: there should be a global one of these rather than repeating the |
|---|
| 1690 | # code. |
|---|
| 1691 | h.setFormatter(logging.Formatter("%(asctime)s %(name)s %(message)s", |
|---|
| 1692 | '%d %b %y %H:%M:%S')) |
|---|
| 1693 | alloc_log.addHandler(h) |
|---|
| 1694 | |
|---|
| 1695 | # XXX |
|---|
| 1696 | url_base = 'https://users.isi.deterlab.net:23232' |
|---|
| 1697 | attrs = [ |
|---|
| 1698 | { |
|---|
| 1699 | 'attribute': 'ssh_pubkey', |
|---|
| 1700 | 'value': '%s/%s/config/%s' % \ |
|---|
| 1701 | (url_base, expid, gw_pubkey_base) |
|---|
| 1702 | }, |
|---|
| 1703 | { |
|---|
| 1704 | 'attribute': 'ssh_secretkey', |
|---|
| 1705 | 'value': '%s/%s/config/%s' % \ |
|---|
| 1706 | (url_base, expid, gw_secretkey_base) |
|---|
| 1707 | }, |
|---|
| 1708 | { |
|---|
| 1709 | 'attribute': 'hosts', |
|---|
| 1710 | 'value': '%s/%s/config/hosts' % \ |
|---|
| 1711 | (url_base, expid) |
|---|
| 1712 | }, |
|---|
| 1713 | { |
|---|
| 1714 | 'attribute': 'experiment_name', |
|---|
| 1715 | 'value': eid, |
|---|
| 1716 | }, |
|---|
| 1717 | ] |
|---|
| 1718 | |
|---|
| 1719 | # Start a thread to do the resource allocation |
|---|
| 1720 | t = Thread(target=self.allocate_resources, |
|---|
| 1721 | args=(allocated, master, eid, expid, expcert, tbparams, |
|---|
| 1722 | topo, tmpdir, alloc_log, alloc_collector, attrs), |
|---|
| 1723 | name=eid) |
|---|
| 1724 | t.start() |
|---|
| 1725 | |
|---|
| 1726 | rv = { |
|---|
| 1727 | 'experimentID': [ |
|---|
| 1728 | {'localname' : eid }, { 'fedid': copy.copy(expid) } |
|---|
| 1729 | ], |
|---|
| 1730 | 'experimentStatus': 'starting', |
|---|
| 1731 | 'experimentAccess': { 'X509' : expcert } |
|---|
| 1732 | } |
|---|
| 1733 | |
|---|
| 1734 | return rv |
|---|
| 1735 | |
|---|
| 1736 | def get_experiment_fedid(self, key): |
|---|
| 1737 | """ |
|---|
| 1738 | find the fedid associated with the localname key in the state database. |
|---|
| 1739 | """ |
|---|
| 1740 | |
|---|
| 1741 | rv = None |
|---|
| 1742 | self.state_lock.acquire() |
|---|
| 1743 | if self.state.has_key(key): |
|---|
| 1744 | if isinstance(self.state[key], dict): |
|---|
| 1745 | try: |
|---|
| 1746 | kl = [ f['fedid'] for f in \ |
|---|
| 1747 | self.state[key]['experimentID']\ |
|---|
| 1748 | if f.has_key('fedid') ] |
|---|
| 1749 | except KeyError: |
|---|
| 1750 | self.state_lock.release() |
|---|
| 1751 | raise service_error(service_error.internal, |
|---|
| 1752 | "No fedid for experiment %s when getting "+\ |
|---|
| 1753 | "fedid(!?)" % key) |
|---|
| 1754 | if len(kl) == 1: |
|---|
| 1755 | rv = kl[0] |
|---|
| 1756 | else: |
|---|
| 1757 | self.state_lock.release() |
|---|
| 1758 | raise service_error(service_error.internal, |
|---|
| 1759 | "multiple fedids for experiment %s when " +\ |
|---|
| 1760 | "getting fedid(!?)" % key) |
|---|
| 1761 | else: |
|---|
| 1762 | self.state_lock.release() |
|---|
| 1763 | raise service_error(service_error.internal, |
|---|
| 1764 | "Unexpected state for %s" % key) |
|---|
| 1765 | self.state_lock.release() |
|---|
| 1766 | return rv |
|---|
| 1767 | |
|---|
| 1768 | def check_experiment_access(self, fid, key): |
|---|
| 1769 | """ |
|---|
| 1770 | Confirm that the fid has access to the experiment. Though a request |
|---|
| 1771 | may be made in terms of a local name, the access attribute is always |
|---|
| 1772 | the experiment's fedid. |
|---|
| 1773 | """ |
|---|
| 1774 | if not isinstance(key, fedid): |
|---|
| 1775 | key = self.get_experiment_fedid(key) |
|---|
| 1776 | |
|---|
| 1777 | if self.auth.check_attribute(fid, key): |
|---|
| 1778 | return True |
|---|
| 1779 | else: |
|---|
| 1780 | raise service_error(service_error.access, "Access Denied") |
|---|
| 1781 | |
|---|
| 1782 | |
|---|
| 1783 | def get_handler(self, path, fid): |
|---|
| 1784 | if self.auth.check_attribute(fid, path): |
|---|
| 1785 | return ("%s/%s" % (self.repodir, path), "application/binary") |
|---|
| 1786 | else: |
|---|
| 1787 | return (None, None) |
|---|
| 1788 | |
|---|
| 1789 | def get_vtopo(self, req, fid): |
|---|
| 1790 | """ |
|---|
| 1791 | Return the stored virtual topology for this experiment |
|---|
| 1792 | """ |
|---|
| 1793 | rv = None |
|---|
| 1794 | state = None |
|---|
| 1795 | |
|---|
| 1796 | req = req.get('VtopoRequestBody', None) |
|---|
| 1797 | if not req: |
|---|
| 1798 | raise service_error(service_error.req, |
|---|
| 1799 | "Bad request format (no VtopoRequestBody)") |
|---|
| 1800 | exp = req.get('experiment', None) |
|---|
| 1801 | if exp: |
|---|
| 1802 | if exp.has_key('fedid'): |
|---|
| 1803 | key = exp['fedid'] |
|---|
| 1804 | keytype = "fedid" |
|---|
| 1805 | elif exp.has_key('localname'): |
|---|
| 1806 | key = exp['localname'] |
|---|
| 1807 | keytype = "localname" |
|---|
| 1808 | else: |
|---|
| 1809 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1810 | else: |
|---|
| 1811 | raise service_error(service_error.req, "No request?") |
|---|
| 1812 | |
|---|
| 1813 | self.check_experiment_access(fid, key) |
|---|
| 1814 | |
|---|
| 1815 | self.state_lock.acquire() |
|---|
| 1816 | if self.state.has_key(key): |
|---|
| 1817 | if self.state[key].has_key('vtopo'): |
|---|
| 1818 | rv = { 'experiment' : {keytype: key },\ |
|---|
| 1819 | 'vtopo': self.state[key]['vtopo'],\ |
|---|
| 1820 | } |
|---|
| 1821 | else: |
|---|
| 1822 | state = self.state[key]['experimentStatus'] |
|---|
| 1823 | self.state_lock.release() |
|---|
| 1824 | |
|---|
| 1825 | if rv: return rv |
|---|
| 1826 | else: |
|---|
| 1827 | if state: |
|---|
| 1828 | raise service_error(service_error.partial, |
|---|
| 1829 | "Not ready: %s" % state) |
|---|
| 1830 | else: |
|---|
| 1831 | raise service_error(service_error.req, "No such experiment") |
|---|
| 1832 | |
|---|
| 1833 | def get_vis(self, req, fid): |
|---|
| 1834 | """ |
|---|
| 1835 | Return the stored visualization for this experiment |
|---|
| 1836 | """ |
|---|
| 1837 | rv = None |
|---|
| 1838 | state = None |
|---|
| 1839 | |
|---|
| 1840 | req = req.get('VisRequestBody', None) |
|---|
| 1841 | if not req: |
|---|
| 1842 | raise service_error(service_error.req, |
|---|
| 1843 | "Bad request format (no VisRequestBody)") |
|---|
| 1844 | exp = req.get('experiment', None) |
|---|
| 1845 | if exp: |
|---|
| 1846 | if exp.has_key('fedid'): |
|---|
| 1847 | key = exp['fedid'] |
|---|
| 1848 | keytype = "fedid" |
|---|
| 1849 | elif exp.has_key('localname'): |
|---|
| 1850 | key = exp['localname'] |
|---|
| 1851 | keytype = "localname" |
|---|
| 1852 | else: |
|---|
| 1853 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1854 | else: |
|---|
| 1855 | raise service_error(service_error.req, "No request?") |
|---|
| 1856 | |
|---|
| 1857 | self.check_experiment_access(fid, key) |
|---|
| 1858 | |
|---|
| 1859 | self.state_lock.acquire() |
|---|
| 1860 | if self.state.has_key(key): |
|---|
| 1861 | if self.state[key].has_key('vis'): |
|---|
| 1862 | rv = { 'experiment' : {keytype: key },\ |
|---|
| 1863 | 'vis': self.state[key]['vis'],\ |
|---|
| 1864 | } |
|---|
| 1865 | else: |
|---|
| 1866 | state = self.state[key]['experimentStatus'] |
|---|
| 1867 | self.state_lock.release() |
|---|
| 1868 | |
|---|
| 1869 | if rv: return rv |
|---|
| 1870 | else: |
|---|
| 1871 | if state: |
|---|
| 1872 | raise service_error(service_error.partial, |
|---|
| 1873 | "Not ready: %s" % state) |
|---|
| 1874 | else: |
|---|
| 1875 | raise service_error(service_error.req, "No such experiment") |
|---|
| 1876 | |
|---|
| 1877 | def clean_info_response(self, rv): |
|---|
| 1878 | """ |
|---|
| 1879 | Remove the information in the experiment's state object that is not in |
|---|
| 1880 | the info response. |
|---|
| 1881 | """ |
|---|
| 1882 | # Remove the owner info (should always be there, but...) |
|---|
| 1883 | if rv.has_key('owner'): del rv['owner'] |
|---|
| 1884 | |
|---|
| 1885 | # Convert the log into the allocationLog parameter and remove the |
|---|
| 1886 | # log entry (with defensive programming) |
|---|
| 1887 | if rv.has_key('log'): |
|---|
| 1888 | rv['allocationLog'] = "".join(rv['log']) |
|---|
| 1889 | del rv['log'] |
|---|
| 1890 | else: |
|---|
| 1891 | rv['allocationLog'] = "" |
|---|
| 1892 | |
|---|
| 1893 | if rv['experimentStatus'] != 'active': |
|---|
| 1894 | if rv.has_key('federant'): del rv['federant'] |
|---|
| 1895 | else: |
|---|
| 1896 | # remove the allocationID info from each federant |
|---|
| 1897 | for f in rv.get('federant', []): |
|---|
| 1898 | if f.has_key('allocID'): del f['allocID'] |
|---|
| 1899 | return rv |
|---|
| 1900 | |
|---|
| 1901 | def get_info(self, req, fid): |
|---|
| 1902 | """ |
|---|
| 1903 | Return all the stored info about this experiment |
|---|
| 1904 | """ |
|---|
| 1905 | rv = None |
|---|
| 1906 | |
|---|
| 1907 | req = req.get('InfoRequestBody', None) |
|---|
| 1908 | if not req: |
|---|
| 1909 | raise service_error(service_error.req, |
|---|
| 1910 | "Bad request format (no InfoRequestBody)") |
|---|
| 1911 | exp = req.get('experiment', None) |
|---|
| 1912 | if exp: |
|---|
| 1913 | if exp.has_key('fedid'): |
|---|
| 1914 | key = exp['fedid'] |
|---|
| 1915 | keytype = "fedid" |
|---|
| 1916 | elif exp.has_key('localname'): |
|---|
| 1917 | key = exp['localname'] |
|---|
| 1918 | keytype = "localname" |
|---|
| 1919 | else: |
|---|
| 1920 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1921 | else: |
|---|
| 1922 | raise service_error(service_error.req, "No request?") |
|---|
| 1923 | |
|---|
| 1924 | self.check_experiment_access(fid, key) |
|---|
| 1925 | |
|---|
| 1926 | # The state may be massaged by the service function that called |
|---|
| 1927 | # get_info (e.g., encoded for XMLRPC transport) so send a copy of the |
|---|
| 1928 | # state. |
|---|
| 1929 | self.state_lock.acquire() |
|---|
| 1930 | if self.state.has_key(key): |
|---|
| 1931 | rv = copy.deepcopy(self.state[key]) |
|---|
| 1932 | self.state_lock.release() |
|---|
| 1933 | |
|---|
| 1934 | if rv: |
|---|
| 1935 | return self.clean_info_response(rv) |
|---|
| 1936 | else: |
|---|
| 1937 | raise service_error(service_error.req, "No such experiment") |
|---|
| 1938 | |
|---|
| 1939 | def get_multi_info(self, req, fid): |
|---|
| 1940 | """ |
|---|
| 1941 | Return all the stored info that this fedid can access |
|---|
| 1942 | """ |
|---|
| 1943 | rv = { 'info': [ ] } |
|---|
| 1944 | |
|---|
| 1945 | self.state_lock.acquire() |
|---|
| 1946 | for key in [ k for k in self.state.keys() if isinstance(k, fedid)]: |
|---|
| 1947 | self.check_experiment_access(fid, key) |
|---|
| 1948 | |
|---|
| 1949 | if self.state.has_key(key): |
|---|
| 1950 | e = copy.deepcopy(self.state[key]) |
|---|
| 1951 | e = self.clean_info_response(e) |
|---|
| 1952 | rv['info'].append(e) |
|---|
| 1953 | self.state_lock.release() |
|---|
| 1954 | return rv |
|---|
| 1955 | |
|---|
| 1956 | def terminate_experiment(self, req, fid): |
|---|
| 1957 | """ |
|---|
| 1958 | Swap this experiment out on the federants and delete the shared |
|---|
| 1959 | information |
|---|
| 1960 | """ |
|---|
| 1961 | tbparams = { } |
|---|
| 1962 | req = req.get('TerminateRequestBody', None) |
|---|
| 1963 | if not req: |
|---|
| 1964 | raise service_error(service_error.req, |
|---|
| 1965 | "Bad request format (no TerminateRequestBody)") |
|---|
| 1966 | force = req.get('force', False) |
|---|
| 1967 | exp = req.get('experiment', None) |
|---|
| 1968 | if exp: |
|---|
| 1969 | if exp.has_key('fedid'): |
|---|
| 1970 | key = exp['fedid'] |
|---|
| 1971 | keytype = "fedid" |
|---|
| 1972 | elif exp.has_key('localname'): |
|---|
| 1973 | key = exp['localname'] |
|---|
| 1974 | keytype = "localname" |
|---|
| 1975 | else: |
|---|
| 1976 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1977 | else: |
|---|
| 1978 | raise service_error(service_error.req, "No request?") |
|---|
| 1979 | |
|---|
| 1980 | self.check_experiment_access(fid, key) |
|---|
| 1981 | |
|---|
| 1982 | dealloc_list = [ ] |
|---|
| 1983 | |
|---|
| 1984 | |
|---|
| 1985 | # Create a logger that logs to the dealloc_list as well as to the main |
|---|
| 1986 | # log file. |
|---|
| 1987 | dealloc_log = logging.getLogger('fedd.experiment_control.%s' % key) |
|---|
| 1988 | h = logging.StreamHandler(self.list_log(dealloc_list)) |
|---|
| 1989 | # XXX: there should be a global one of these rather than repeating the |
|---|
| 1990 | # code. |
|---|
| 1991 | h.setFormatter(logging.Formatter("%(asctime)s %(name)s %(message)s", |
|---|
| 1992 | '%d %b %y %H:%M:%S')) |
|---|
| 1993 | dealloc_log.addHandler(h) |
|---|
| 1994 | |
|---|
| 1995 | self.state_lock.acquire() |
|---|
| 1996 | fed_exp = self.state.get(key, None) |
|---|
| 1997 | |
|---|
| 1998 | if fed_exp: |
|---|
| 1999 | # This branch of the conditional holds the lock to generate a |
|---|
| 2000 | # consistent temporary tbparams variable to deallocate experiments. |
|---|
| 2001 | # It releases the lock to do the deallocations and reacquires it to |
|---|
| 2002 | # remove the experiment state when the termination is complete. |
|---|
| 2003 | |
|---|
| 2004 | # First make sure that the experiment creation is complete. |
|---|
| 2005 | status = fed_exp.get('experimentStatus', None) |
|---|
| 2006 | |
|---|
| 2007 | if status: |
|---|
| 2008 | if status in ('starting', 'terminating'): |
|---|
| 2009 | if not force: |
|---|
| 2010 | self.state_lock.release() |
|---|
| 2011 | raise service_error(service_error.partial, |
|---|
| 2012 | 'Experiment still being created or destroyed') |
|---|
| 2013 | else: |
|---|
| 2014 | self.log.warning('Experiment in %s state ' % status + \ |
|---|
| 2015 | 'being terminated by force.') |
|---|
| 2016 | else: |
|---|
| 2017 | # No status??? trouble |
|---|
| 2018 | self.state_lock.release() |
|---|
| 2019 | raise service_error(service_error.internal, |
|---|
| 2020 | "Experiment has no status!?") |
|---|
| 2021 | |
|---|
| 2022 | ids = [] |
|---|
| 2023 | # experimentID is a list of dicts that are self-describing |
|---|
| 2024 | # identifiers. This finds all the fedids and localnames - the |
|---|
| 2025 | # keys of self.state - and puts them into ids. |
|---|
| 2026 | for id in fed_exp.get('experimentID', []): |
|---|
| 2027 | if id.has_key('fedid'): ids.append(id['fedid']) |
|---|
| 2028 | if id.has_key('localname'): ids.append(id['localname']) |
|---|
| 2029 | |
|---|
| 2030 | # Collect the allocation/segment ids |
|---|
| 2031 | for fed in fed_exp.get('federant', []): |
|---|
| 2032 | try: |
|---|
| 2033 | tb = fed['emulab']['project']['testbed']['localname'] |
|---|
| 2034 | aid = fed['allocID'] |
|---|
| 2035 | except KeyError, e: |
|---|
| 2036 | continue |
|---|
| 2037 | tbparams[tb] = aid |
|---|
| 2038 | fed_exp['experimentStatus'] = 'terminating' |
|---|
| 2039 | if self.state_filename: self.write_state() |
|---|
| 2040 | self.state_lock.release() |
|---|
| 2041 | |
|---|
| 2042 | # Stop everyone. NB, wait_for_all waits until a thread starts and |
|---|
| 2043 | # then completes, so we can't wait if nothing starts. So, no |
|---|
| 2044 | # tbparams, no start. |
|---|
| 2045 | if len(tbparams) > 0: |
|---|
| 2046 | thread_pool = self.thread_pool(self.nthreads) |
|---|
| 2047 | for tb in tbparams.keys(): |
|---|
| 2048 | # Create and start a thread to stop the segment |
|---|
| 2049 | thread_pool.wait_for_slot() |
|---|
| 2050 | uri = self.tbmap.get(tb, None) |
|---|
| 2051 | t = self.pooled_thread(\ |
|---|
| 2052 | target=self.terminate_segment(log=dealloc_log, |
|---|
| 2053 | testbed=tb, |
|---|
| 2054 | cert_file=self.cert_file, |
|---|
| 2055 | cert_pwd=self.cert_pwd, |
|---|
| 2056 | trusted_certs=self.trusted_certs, |
|---|
| 2057 | caller=self.call_TerminateSegment), |
|---|
| 2058 | args=(uri, tbparams[tb]), name=tb, |
|---|
| 2059 | pdata=thread_pool, trace_file=self.trace_file) |
|---|
| 2060 | t.start() |
|---|
| 2061 | # Wait for completions |
|---|
| 2062 | thread_pool.wait_for_all_done() |
|---|
| 2063 | |
|---|
| 2064 | # release the allocations (failed experiments have done this |
|---|
| 2065 | # already, and starting experiments may be in odd states, so we |
|---|
| 2066 | # ignore errors releasing those allocations |
|---|
| 2067 | try: |
|---|
| 2068 | for tb in tbparams.keys(): |
|---|
| 2069 | self.release_access(tb, tbparams[tb]) |
|---|
| 2070 | except service_error, e: |
|---|
| 2071 | if status != 'failed' and not force: |
|---|
| 2072 | raise e |
|---|
| 2073 | |
|---|
| 2074 | # Remove the terminated experiment |
|---|
| 2075 | self.state_lock.acquire() |
|---|
| 2076 | for id in ids: |
|---|
| 2077 | if self.state.has_key(id): del self.state[id] |
|---|
| 2078 | |
|---|
| 2079 | if self.state_filename: self.write_state() |
|---|
| 2080 | self.state_lock.release() |
|---|
| 2081 | |
|---|
| 2082 | return { |
|---|
| 2083 | 'experiment': exp , |
|---|
| 2084 | 'deallocationLog': "".join(dealloc_list), |
|---|
| 2085 | } |
|---|
| 2086 | else: |
|---|
| 2087 | # Don't forget to release the lock |
|---|
| 2088 | self.state_lock.release() |
|---|
| 2089 | raise service_error(service_error.req, "No saved state") |
|---|
