[6679c122] | 1 | #!/usr/local/bin/python |
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| 2 | |
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| 3 | import os,sys |
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| 4 | |
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| 5 | import re |
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| 6 | import random |
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| 7 | import string |
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| 8 | import subprocess |
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| 9 | import tempfile |
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| 10 | import copy |
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[eee2b2e] | 11 | import pickle |
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[c971895] | 12 | import logging |
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[79b6596] | 13 | import signal |
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| 14 | import time |
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[6679c122] | 15 | |
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[3441fe3] | 16 | import traceback |
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[c971895] | 17 | # For parsing visualization output and splitter output |
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| 18 | import xml.parsers.expat |
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[3441fe3] | 19 | |
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[1af38d6] | 20 | from threading import * |
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[6679c122] | 21 | from subprocess import * |
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| 22 | |
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[ec4fb42] | 23 | from util import * |
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[51cc9df] | 24 | from fedid import fedid, generate_fedid |
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[9460b1e] | 25 | from remote_service import xmlrpc_handler, soap_handler, service_caller |
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[c971895] | 26 | from service_error import service_error |
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[6679c122] | 27 | |
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[11a08b0] | 28 | |
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| 29 | class nullHandler(logging.Handler): |
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| 30 | def emit(self, record): pass |
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| 31 | |
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| 32 | fl = logging.getLogger("fedd.experiment_control") |
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| 33 | fl.addHandler(nullHandler()) |
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| 34 | |
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[ec4fb42] | 35 | class experiment_control_local: |
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[0ea11af] | 36 | """ |
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| 37 | Control of experiments that this system can directly access. |
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| 38 | |
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| 39 | Includes experiment creation, termination and information dissemination. |
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| 40 | Thred safe. |
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| 41 | """ |
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[79b6596] | 42 | |
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| 43 | class ssh_cmd_timeout(RuntimeError): pass |
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[4b362df] | 44 | |
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| 45 | class list_log: |
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| 46 | """ |
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| 47 | Provide an interface that lets logger.StreamHandler s write to a list |
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| 48 | of strings. |
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| 49 | """ |
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| 50 | def __init__(self, l=[]): |
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| 51 | """ |
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| 52 | Link to an existing list or just create a log |
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| 53 | """ |
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| 54 | self.ll = l |
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| 55 | self.lock = Lock() |
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| 56 | def write(self, str): |
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| 57 | """ |
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| 58 | Add the string to the log. Lock for consistency. |
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| 59 | """ |
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| 60 | self.lock.acquire() |
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| 61 | self.ll.append(str) |
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| 62 | self.lock.release() |
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| 63 | |
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| 64 | def flush(self): |
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| 65 | """ |
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| 66 | No-op that StreamHandlers expect |
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| 67 | """ |
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| 68 | pass |
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| 69 | |
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[6679c122] | 70 | |
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[1af38d6] | 71 | class thread_pool: |
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[866c983] | 72 | """ |
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| 73 | A class to keep track of a set of threads all invoked for the same |
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| 74 | task. Manages the mutual exclusion of the states. |
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| 75 | """ |
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| 76 | def __init__(self, nthreads): |
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| 77 | """ |
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| 78 | Start a pool. |
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| 79 | """ |
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| 80 | self.changed = Condition() |
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| 81 | self.started = 0 |
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| 82 | self.terminated = 0 |
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| 83 | self.nthreads = nthreads |
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| 84 | |
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| 85 | def acquire(self): |
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| 86 | """ |
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| 87 | Get the pool's lock. |
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| 88 | """ |
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| 89 | self.changed.acquire() |
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| 90 | |
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| 91 | def release(self): |
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| 92 | """ |
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| 93 | Release the pool's lock. |
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| 94 | """ |
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| 95 | self.changed.release() |
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| 96 | |
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| 97 | def wait(self, timeout = None): |
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| 98 | """ |
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| 99 | Wait for a pool thread to start or stop. |
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| 100 | """ |
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| 101 | self.changed.wait(timeout) |
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| 102 | |
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| 103 | def start(self): |
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| 104 | """ |
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| 105 | Called by a pool thread to report starting. |
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| 106 | """ |
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| 107 | self.changed.acquire() |
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| 108 | self.started += 1 |
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| 109 | self.changed.notifyAll() |
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| 110 | self.changed.release() |
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| 111 | |
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| 112 | def terminate(self): |
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| 113 | """ |
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| 114 | Called by a pool thread to report finishing. |
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| 115 | """ |
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| 116 | self.changed.acquire() |
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| 117 | self.terminated += 1 |
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| 118 | self.changed.notifyAll() |
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| 119 | self.changed.release() |
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| 120 | |
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| 121 | def clear(self): |
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| 122 | """ |
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| 123 | Clear all pool data. |
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| 124 | """ |
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| 125 | self.changed.acquire() |
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| 126 | self.started = 0 |
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| 127 | self.terminated =0 |
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| 128 | self.changed.notifyAll() |
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| 129 | self.changed.release() |
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| 130 | |
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| 131 | def wait_for_slot(self): |
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| 132 | """ |
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| 133 | Wait until we have a free slot to start another pooled thread |
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| 134 | """ |
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| 135 | self.acquire() |
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| 136 | while self.started - self.terminated >= self.nthreads: |
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| 137 | self.wait() |
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| 138 | self.release() |
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| 139 | |
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| 140 | def wait_for_all_done(self): |
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| 141 | """ |
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| 142 | Wait until all active threads finish (and at least one has started) |
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| 143 | """ |
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| 144 | self.acquire() |
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| 145 | while self.started == 0 or self.started > self.terminated: |
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| 146 | self.wait() |
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| 147 | self.release() |
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[8bc5754] | 148 | |
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[1af38d6] | 149 | class pooled_thread(Thread): |
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[866c983] | 150 | """ |
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| 151 | One of a set of threads dedicated to a specific task. Uses the |
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| 152 | thread_pool class above for coordination. |
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| 153 | """ |
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| 154 | def __init__(self, group=None, target=None, name=None, args=(), |
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| 155 | kwargs={}, pdata=None, trace_file=None): |
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| 156 | Thread.__init__(self, group, target, name, args, kwargs) |
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| 157 | self.rv = None # Return value of the ops in this thread |
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| 158 | self.exception = None # Exception that terminated this thread |
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| 159 | self.target=target # Target function to run on start() |
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| 160 | self.args = args # Args to pass to target |
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| 161 | self.kwargs = kwargs # Additional kw args |
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| 162 | self.pdata = pdata # thread_pool for this class |
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| 163 | # Logger for this thread |
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| 164 | self.log = logging.getLogger("fedd.experiment_control") |
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| 165 | |
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| 166 | def run(self): |
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| 167 | """ |
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| 168 | Emulate Thread.run, except add pool data manipulation and error |
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| 169 | logging. |
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| 170 | """ |
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| 171 | if self.pdata: |
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| 172 | self.pdata.start() |
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| 173 | |
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| 174 | if self.target: |
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| 175 | try: |
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| 176 | self.rv = self.target(*self.args, **self.kwargs) |
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| 177 | except service_error, s: |
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| 178 | self.exception = s |
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| 179 | self.log.error("Thread exception: %s %s" % \ |
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| 180 | (s.code_string(), s.desc)) |
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| 181 | except: |
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| 182 | self.exception = sys.exc_info()[1] |
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| 183 | self.log.error(("Unexpected thread exception: %s" +\ |
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| 184 | "Trace %s") % (self.exception,\ |
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| 185 | traceback.format_exc())) |
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| 186 | if self.pdata: |
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| 187 | self.pdata.terminate() |
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[6679c122] | 188 | |
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[f069052] | 189 | call_RequestAccess = service_caller('RequestAccess') |
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| 190 | call_ReleaseAccess = service_caller('ReleaseAccess') |
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| 191 | call_Ns2Split = service_caller('Ns2Split') |
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[058f58e] | 192 | |
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[3f6bc5f] | 193 | def __init__(self, config=None, auth=None): |
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[866c983] | 194 | """ |
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| 195 | Intialize the various attributes, most from the config object |
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| 196 | """ |
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| 197 | |
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| 198 | def parse_tarfile_list(tf): |
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| 199 | """ |
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| 200 | Parse a tarfile list from the configuration. This is a set of |
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| 201 | paths and tarfiles separated by spaces. |
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| 202 | """ |
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| 203 | rv = [ ] |
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| 204 | if tf is not None: |
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| 205 | tl = tf.split() |
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| 206 | while len(tl) > 1: |
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| 207 | p, t = tl[0:2] |
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| 208 | del tl[0:2] |
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| 209 | rv.append((p, t)) |
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| 210 | return rv |
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| 211 | |
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| 212 | self.thread_with_rv = experiment_control_local.pooled_thread |
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| 213 | self.thread_pool = experiment_control_local.thread_pool |
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| 214 | |
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| 215 | self.cert_file = config.get("experiment_control", "cert_file") |
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| 216 | if self.cert_file: |
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| 217 | self.cert_pwd = config.get("experiment_control", "cert_pwd") |
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| 218 | else: |
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| 219 | self.cert_file = config.get("globals", "cert_file") |
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| 220 | self.cert_pwd = config.get("globals", "cert_pwd") |
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| 221 | |
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| 222 | self.trusted_certs = config.get("experiment_control", "trusted_certs") \ |
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| 223 | or config.get("globals", "trusted_certs") |
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| 224 | |
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| 225 | self.exp_stem = "fed-stem" |
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| 226 | self.log = logging.getLogger("fedd.experiment_control") |
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| 227 | set_log_level(config, "experiment_control", self.log) |
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| 228 | self.muxmax = 2 |
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| 229 | self.nthreads = 2 |
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| 230 | self.randomize_experiments = False |
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| 231 | |
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| 232 | self.splitter = None |
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| 233 | self.ssh_keygen = "/usr/bin/ssh-keygen" |
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| 234 | self.ssh_identity_file = None |
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| 235 | |
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| 236 | |
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| 237 | self.debug = config.getboolean("experiment_control", "create_debug") |
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| 238 | self.state_filename = config.get("experiment_control", |
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| 239 | "experiment_state") |
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| 240 | self.splitter_url = config.get("experiment_control", "splitter_uri") |
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| 241 | self.fedkit = parse_tarfile_list(\ |
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| 242 | config.get("experiment_control", "fedkit")) |
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| 243 | self.gatewaykit = parse_tarfile_list(\ |
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| 244 | config.get("experiment_control", "gatewaykit")) |
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| 245 | accessdb_file = config.get("experiment_control", "accessdb") |
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| 246 | |
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| 247 | self.ssh_pubkey_file = config.get("experiment_control", |
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| 248 | "ssh_pubkey_file") |
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| 249 | self.ssh_privkey_file = config.get("experiment_control", |
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| 250 | "ssh_privkey_file") |
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| 251 | # NB for internal master/slave ops, not experiment setup |
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| 252 | self.ssh_type = config.get("experiment_control", "sshkeytype", "rsa") |
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| 253 | self.state = { } |
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| 254 | self.state_lock = Lock() |
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| 255 | self.tclsh = "/usr/local/bin/otclsh" |
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| 256 | self.tcl_splitter = config.get("splitter", "tcl_splitter") or \ |
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| 257 | config.get("experiment_control", "tcl_splitter", |
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| 258 | "/usr/testbed/lib/ns2ir/parse.tcl") |
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| 259 | mapdb_file = config.get("experiment_control", "mapdb") |
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| 260 | self.trace_file = sys.stderr |
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| 261 | |
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| 262 | self.def_expstart = \ |
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| 263 | "sudo -H /bin/sh /usr/local/federation/bin/federate.sh >& " +\ |
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| 264 | "/tmp/federate"; |
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| 265 | self.def_mexpstart = "sudo -H /usr/local/federation/bin/make_hosts " +\ |
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| 266 | "FEDDIR/hosts"; |
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| 267 | self.def_gwstart = \ |
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| 268 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF>& " +\ |
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| 269 | "/tmp/bridge.log"; |
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| 270 | self.def_mgwstart = \ |
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| 271 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF >& " +\ |
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| 272 | "/tmp/bridge.log"; |
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| 273 | self.def_gwimage = "FBSD61-TUNNEL2"; |
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| 274 | self.def_gwtype = "pc"; |
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| 275 | self.local_access = { } |
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| 276 | |
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| 277 | if auth: |
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| 278 | self.auth = auth |
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| 279 | else: |
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| 280 | self.log.error(\ |
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| 281 | "[access]: No authorizer initialized, creating local one.") |
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| 282 | auth = authorizer() |
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| 283 | |
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| 284 | |
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| 285 | if self.ssh_pubkey_file: |
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| 286 | try: |
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| 287 | f = open(self.ssh_pubkey_file, 'r') |
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| 288 | self.ssh_pubkey = f.read() |
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| 289 | f.close() |
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| 290 | except IOError: |
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| 291 | raise service_error(service_error.internal, |
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| 292 | "Cannot read sshpubkey") |
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| 293 | else: |
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| 294 | raise service_error(service_error.internal, |
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| 295 | "No SSH public key file?") |
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| 296 | |
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| 297 | if not self.ssh_privkey_file: |
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| 298 | raise service_error(service_error.internal, |
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| 299 | "No SSH public key file?") |
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| 300 | |
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| 301 | |
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| 302 | if mapdb_file: |
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| 303 | self.read_mapdb(mapdb_file) |
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| 304 | else: |
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| 305 | self.log.warn("[experiment_control] No testbed map, using defaults") |
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| 306 | self.tbmap = { |
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| 307 | 'deter':'https://users.isi.deterlab.net:23235', |
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| 308 | 'emulab':'https://users.isi.deterlab.net:23236', |
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| 309 | 'ucb':'https://users.isi.deterlab.net:23237', |
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| 310 | } |
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| 311 | |
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| 312 | if accessdb_file: |
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| 313 | self.read_accessdb(accessdb_file) |
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| 314 | else: |
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| 315 | raise service_error(service_error.internal, |
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| 316 | "No accessdb specified in config") |
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| 317 | |
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| 318 | # Grab saved state. OK to do this w/o locking because it's read only |
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| 319 | # and only one thread should be in existence that can see self.state at |
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| 320 | # this point. |
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| 321 | if self.state_filename: |
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| 322 | self.read_state() |
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| 323 | |
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| 324 | # Dispatch tables |
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| 325 | self.soap_services = {\ |
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| 326 | 'Create': soap_handler('Create', self.create_experiment), |
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| 327 | 'Vtopo': soap_handler('Vtopo', self.get_vtopo), |
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| 328 | 'Vis': soap_handler('Vis', self.get_vis), |
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| 329 | 'Info': soap_handler('Info', self.get_info), |
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| 330 | 'Terminate': soap_handler('Terminate', |
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| 331 | self.terminate_experiment), |
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| 332 | } |
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| 333 | |
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| 334 | self.xmlrpc_services = {\ |
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| 335 | 'Create': xmlrpc_handler('Create', self.create_experiment), |
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| 336 | 'Vtopo': xmlrpc_handler('Vtopo', self.get_vtopo), |
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| 337 | 'Vis': xmlrpc_handler('Vis', self.get_vis), |
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| 338 | 'Info': xmlrpc_handler('Info', self.get_info), |
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| 339 | 'Terminate': xmlrpc_handler('Terminate', |
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| 340 | self.terminate_experiment), |
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| 341 | } |
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[19cc408] | 342 | |
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[6679c122] | 343 | def copy_file(self, src, dest, size=1024): |
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[866c983] | 344 | """ |
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| 345 | Exceedingly simple file copy. |
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| 346 | """ |
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| 347 | s = open(src,'r') |
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| 348 | d = open(dest, 'w') |
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| 349 | |
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| 350 | buf = "x" |
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| 351 | while buf != "": |
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| 352 | buf = s.read(size) |
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| 353 | d.write(buf) |
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| 354 | s.close() |
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| 355 | d.close() |
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[6679c122] | 356 | |
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[a97394b] | 357 | # Call while holding self.state_lock |
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[eee2b2e] | 358 | def write_state(self): |
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[866c983] | 359 | """ |
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| 360 | Write a new copy of experiment state after copying the existing state |
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| 361 | to a backup. |
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| 362 | |
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| 363 | State format is a simple pickling of the state dictionary. |
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| 364 | """ |
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| 365 | if os.access(self.state_filename, os.W_OK): |
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| 366 | self.copy_file(self.state_filename, \ |
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| 367 | "%s.bak" % self.state_filename) |
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| 368 | try: |
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| 369 | f = open(self.state_filename, 'w') |
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| 370 | pickle.dump(self.state, f) |
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| 371 | except IOError, e: |
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| 372 | self.log.error("Can't write file %s: %s" % \ |
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| 373 | (self.state_filename, e)) |
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| 374 | except pickle.PicklingError, e: |
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| 375 | self.log.error("Pickling problem: %s" % e) |
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| 376 | except TypeError, e: |
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| 377 | self.log.error("Pickling problem (TypeError): %s" % e) |
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[eee2b2e] | 378 | |
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[a97394b] | 379 | # Call while holding self.state_lock |
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[eee2b2e] | 380 | def read_state(self): |
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[866c983] | 381 | """ |
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| 382 | Read a new copy of experiment state. Old state is overwritten. |
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| 383 | |
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| 384 | State format is a simple pickling of the state dictionary. |
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| 385 | """ |
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| 386 | try: |
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| 387 | f = open(self.state_filename, "r") |
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| 388 | self.state = pickle.load(f) |
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| 389 | self.log.debug("[read_state]: Read state from %s" % \ |
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| 390 | self.state_filename) |
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| 391 | except IOError, e: |
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| 392 | self.log.warning("[read_state]: No saved state: Can't open %s: %s"\ |
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| 393 | % (self.state_filename, e)) |
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| 394 | except pickle.UnpicklingError, e: |
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| 395 | self.log.warning(("[read_state]: No saved state: " + \ |
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| 396 | "Unpickling failed: %s") % e) |
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| 397 | |
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| 398 | for k in self.state.keys(): |
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| 399 | try: |
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| 400 | # This list should only have one element in it, but phrasing it |
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| 401 | # as a for loop doesn't cost much, really. We have to find the |
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| 402 | # fedid elements anyway. |
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| 403 | for eid in [ f['fedid'] \ |
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| 404 | for f in self.state[k]['experimentID']\ |
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| 405 | if f.has_key('fedid') ]: |
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| 406 | self.auth.set_attribute(self.state[k]['owner'], eid) |
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| 407 | except KeyError, e: |
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| 408 | self.log.warning("[read_state]: State ownership or identity " +\ |
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| 409 | "misformatted in %s: %s" % (self.state_filename, e)) |
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[4064742] | 410 | |
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| 411 | |
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| 412 | def read_accessdb(self, accessdb_file): |
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[866c983] | 413 | """ |
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| 414 | Read the mapping from fedids that can create experiments to their name |
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| 415 | in the 3-level access namespace. All will be asserted from this |
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| 416 | testbed and can include the local username and porject that will be |
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| 417 | asserted on their behalf by this fedd. Each fedid is also added to the |
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| 418 | authorization system with the "create" attribute. |
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| 419 | """ |
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| 420 | self.accessdb = {} |
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| 421 | # These are the regexps for parsing the db |
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| 422 | name_expr = "[" + string.ascii_letters + string.digits + "\.\-]+" |
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| 423 | project_line = re.compile("^\s*fedid:([" + string.hexdigits + "]+)"+ \ |
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| 424 | "\s*->\(\s*("+name_expr+")\s*,\s*("+name_expr+")\s*\)\s*$") |
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| 425 | user_line = re.compile("^\s*fedid:([" + string.hexdigits + "]+)"+ \ |
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| 426 | "\s*->\s*(" + name_expr + ")\s*$") |
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| 427 | lineno = 0 |
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| 428 | |
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| 429 | # Parse the mappings and store in self.authdb, a dict of |
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| 430 | # fedid -> (proj, user) |
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| 431 | try: |
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| 432 | f = open(accessdb_file, "r") |
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| 433 | for line in f: |
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| 434 | lineno += 1 |
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| 435 | line = line.strip() |
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| 436 | if len(line) == 0 or line.startswith('#'): |
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| 437 | continue |
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| 438 | m = project_line.match(line) |
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| 439 | if m: |
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| 440 | fid = fedid(hexstr=m.group(1)) |
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| 441 | project, user = m.group(2,3) |
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| 442 | if not self.accessdb.has_key(fid): |
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| 443 | self.accessdb[fid] = [] |
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| 444 | self.accessdb[fid].append((project, user)) |
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| 445 | continue |
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| 446 | |
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| 447 | m = user_line.match(line) |
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| 448 | if m: |
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| 449 | fid = fedid(hexstr=m.group(1)) |
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| 450 | project = None |
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| 451 | user = m.group(2) |
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| 452 | if not self.accessdb.has_key(fid): |
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| 453 | self.accessdb[fid] = [] |
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| 454 | self.accessdb[fid].append((project, user)) |
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| 455 | continue |
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| 456 | self.log.warn("[experiment_control] Error parsing access " +\ |
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| 457 | "db %s at line %d" % (accessdb_file, lineno)) |
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| 458 | except IOError: |
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| 459 | raise service_error(service_error.internal, |
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| 460 | "Error opening/reading %s as experiment " +\ |
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| 461 | "control accessdb" % accessdb_file) |
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| 462 | f.close() |
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| 463 | |
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| 464 | # Initialize the authorization attributes |
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| 465 | for fid in self.accessdb.keys(): |
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| 466 | self.auth.set_attribute(fid, 'create') |
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[34bc05c] | 467 | |
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| 468 | def read_mapdb(self, file): |
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[866c983] | 469 | """ |
---|
| 470 | Read a simple colon separated list of mappings for the |
---|
| 471 | label-to-testbed-URL mappings. Clears or creates self.tbmap. |
---|
| 472 | """ |
---|
| 473 | |
---|
| 474 | self.tbmap = { } |
---|
| 475 | lineno =0 |
---|
| 476 | try: |
---|
| 477 | f = open(file, "r") |
---|
| 478 | for line in f: |
---|
| 479 | lineno += 1 |
---|
| 480 | line = line.strip() |
---|
| 481 | if line.startswith('#') or len(line) == 0: |
---|
| 482 | continue |
---|
| 483 | try: |
---|
| 484 | label, url = line.split(':', 1) |
---|
| 485 | self.tbmap[label] = url |
---|
| 486 | except ValueError, e: |
---|
| 487 | self.log.warn("[read_mapdb] Ignored bad line (%d) in " +\ |
---|
| 488 | "map db: %s %s" % (lineno, line, e)) |
---|
| 489 | except IOError, e: |
---|
| 490 | self.log.warning("[read_mapdb]: No saved map database: Can't " +\ |
---|
| 491 | "open %s: %s" % (file, e)) |
---|
| 492 | f.close() |
---|
[eee2b2e] | 493 | |
---|
[4b362df] | 494 | class emulab_segment: |
---|
| 495 | def __init__(self, log=None, keyfile=None, debug=False): |
---|
| 496 | self.log = log or logging.getLogger(\ |
---|
| 497 | 'fedd.experiment_control.emulab_segment') |
---|
| 498 | self.ssh_privkey_file = keyfile |
---|
| 499 | self.debug = debug |
---|
| 500 | self.ssh_exec="/usr/bin/ssh" |
---|
| 501 | self.scp_exec = "/usr/bin/scp" |
---|
| 502 | self.ssh_cmd_timeout = experiment_control_local.ssh_cmd_timeout |
---|
| 503 | |
---|
| 504 | def scp_file(self, file, user, host, dest=""): |
---|
| 505 | """ |
---|
| 506 | scp a file to the remote host. If debug is set the action is only |
---|
| 507 | logged. |
---|
| 508 | """ |
---|
| 509 | |
---|
| 510 | scp_cmd = [self.scp_exec, '-o', 'IdentitiesOnly yes', |
---|
| 511 | '-o', 'StrictHostKeyChecking yes', '-i', |
---|
| 512 | self.ssh_privkey_file, file, |
---|
| 513 | "%s@%s:%s" % (user, host, dest)] |
---|
| 514 | rv = 0 |
---|
[d0ae12d] | 515 | |
---|
[4b362df] | 516 | try: |
---|
| 517 | dnull = open("/dev/null", "w") |
---|
| 518 | except IOError: |
---|
| 519 | self.log.debug("[ssh_file]: failed to open " + \ |
---|
| 520 | "/dev/null for redirect") |
---|
| 521 | dnull = Null |
---|
| 522 | |
---|
| 523 | self.log.debug("[scp_file]: %s" % " ".join(scp_cmd)) |
---|
| 524 | if not self.debug: |
---|
| 525 | rv = call(scp_cmd, stdout=dnull, stderr=dnull) |
---|
| 526 | |
---|
| 527 | return rv == 0 |
---|
| 528 | |
---|
| 529 | def ssh_cmd(self, user, host, cmd, wname=None, timeout=None): |
---|
| 530 | """ |
---|
| 531 | Run a remote command on host as user. If debug is set, the action is |
---|
| 532 | only logged. |
---|
| 533 | """ |
---|
| 534 | sh_str = ("%s -o 'IdentitiesOnly yes' -o " + \ |
---|
| 535 | "'StrictHostKeyChecking yes' -i %s %s@%s %s") % \ |
---|
| 536 | (self.ssh_exec, self.ssh_privkey_file, |
---|
| 537 | user, host, cmd) |
---|
[866c983] | 538 | |
---|
[4b362df] | 539 | try: |
---|
| 540 | dnull = open("/dev/null", "r") |
---|
| 541 | except IOError: |
---|
| 542 | self.log.debug("[ssh_cmd]: failed to open /dev/null " + \ |
---|
| 543 | "for redirect") |
---|
| 544 | dnull = Null |
---|
| 545 | |
---|
| 546 | self.log.debug("[ssh_cmd]: %s" % sh_str) |
---|
| 547 | if not self.debug: |
---|
| 548 | if dnull: |
---|
| 549 | sub = Popen(sh_str, shell=True, stdout=dnull, stderr=dnull) |
---|
| 550 | else: |
---|
| 551 | sub = Popen(sh_str, shell=True) |
---|
| 552 | if timeout: |
---|
| 553 | i = 0 |
---|
| 554 | rv = sub.poll() |
---|
| 555 | while i < timeout: |
---|
| 556 | if rv is not None: break |
---|
| 557 | else: |
---|
| 558 | time.sleep(1) |
---|
| 559 | rv = sub.poll() |
---|
| 560 | i += 1 |
---|
[79b6596] | 561 | else: |
---|
[4b362df] | 562 | self.log.debug("Process exceeded runtime: %s" % sh_str) |
---|
| 563 | os.kill(sub.pid, signal.SIGKILL) |
---|
| 564 | raise self.ssh_cmd_timeout(); |
---|
| 565 | return rv == 0 |
---|
[79b6596] | 566 | else: |
---|
[4b362df] | 567 | return sub.wait() == 0 |
---|
[79b6596] | 568 | else: |
---|
[4b362df] | 569 | return True |
---|
| 570 | |
---|
| 571 | class start_segment(emulab_segment): |
---|
| 572 | def __init__(self, log=None, keyfile=None, debug=False): |
---|
| 573 | experiment_control_local.emulab_segment.__init__(self, |
---|
| 574 | log=log, keyfile=keyfile, debug=debug) |
---|
| 575 | |
---|
| 576 | def create_config_tree(self, src_dir, dest_dir, script): |
---|
| 577 | """ |
---|
| 578 | Append commands to script that will create the directory hierarchy |
---|
| 579 | on the remote federant. |
---|
| 580 | """ |
---|
| 581 | |
---|
| 582 | if os.path.isdir(src_dir): |
---|
| 583 | print >>script, "mkdir -p %s" % dest_dir |
---|
| 584 | print >>script, "chmod 770 %s" % dest_dir |
---|
| 585 | |
---|
| 586 | for f in os.listdir(src_dir): |
---|
| 587 | if os.path.isdir(f): |
---|
| 588 | self.create_config_tree("%s/%s" % (src_dir, f), |
---|
| 589 | "%s/%s" % (dest_dir, f), script) |
---|
| 590 | else: |
---|
| 591 | self.log.debug("[create_config_tree]: Not a directory: %s" \ |
---|
| 592 | % src_dir) |
---|
[c2dbca8] | 593 | |
---|
[4b362df] | 594 | def ship_configs(self, host, user, src_dir, dest_dir): |
---|
| 595 | """ |
---|
| 596 | Copy federant-specific configuration files to the federant. |
---|
| 597 | """ |
---|
[c2dbca8] | 598 | for f in os.listdir(src_dir): |
---|
| 599 | if os.path.isdir(f): |
---|
[4b362df] | 600 | if not self.ship_configs(host, user, "%s/%s" % (src_dir, f), |
---|
| 601 | "%s/%s" % (dest_dir, f)): |
---|
| 602 | return False |
---|
| 603 | else: |
---|
| 604 | if not self.scp_file("%s/%s" % (src_dir, f), |
---|
| 605 | user, host, dest_dir): |
---|
| 606 | return False |
---|
| 607 | return True |
---|
| 608 | |
---|
| 609 | def get_state(self, user, host, tb, pid, eid): |
---|
| 610 | # command to test experiment state |
---|
| 611 | expinfo_exec = "/usr/testbed/bin/expinfo" |
---|
| 612 | # Regular expressions to parse the expinfo response |
---|
| 613 | state_re = re.compile("State:\s+(\w+)") |
---|
| 614 | no_exp_re = re.compile("^No\s+such\s+experiment") |
---|
| 615 | swapping_re = re.compile("^No\s+information\s+available.") |
---|
| 616 | state = None # Experiment state parsed from expinfo |
---|
| 617 | # The expinfo ssh command. Note the identity restriction to use |
---|
| 618 | # only the identity provided in the pubkey given. |
---|
| 619 | cmd = [self.ssh_exec, '-o', 'IdentitiesOnly yes', '-o', |
---|
| 620 | 'StrictHostKeyChecking yes', '-i', |
---|
| 621 | self.ssh_privkey_file, "%s@%s" % (user, host), |
---|
| 622 | expinfo_exec, pid, eid] |
---|
| 623 | |
---|
| 624 | dev_null = None |
---|
| 625 | try: |
---|
| 626 | dev_null = open("/dev/null", "a") |
---|
| 627 | except IOError, e: |
---|
| 628 | self.log.error("[get_state]: can't open /dev/null: %s" %e) |
---|
[79b6596] | 629 | |
---|
[4b362df] | 630 | if self.debug: |
---|
| 631 | state = 'swapped' |
---|
| 632 | rv = 0 |
---|
| 633 | else: |
---|
| 634 | status = Popen(cmd, stdout=PIPE, stderr=dev_null) |
---|
| 635 | for line in status.stdout: |
---|
| 636 | m = state_re.match(line) |
---|
| 637 | if m: state = m.group(1) |
---|
| 638 | else: |
---|
| 639 | for reg, st in ((no_exp_re, "none"), |
---|
| 640 | (swapping_re, "swapping")): |
---|
| 641 | m = reg.match(line) |
---|
| 642 | if m: state = st |
---|
| 643 | rv = status.wait() |
---|
| 644 | |
---|
| 645 | # If the experiment is not present the subcommand returns a |
---|
| 646 | # non-zero return value. If we successfully parsed a "none" |
---|
| 647 | # outcome, ignore the return code. |
---|
| 648 | if rv != 0 and state != 'none': |
---|
| 649 | raise service_error(service_error.internal, |
---|
| 650 | "Cannot get status of segment %s:%s/%s" % \ |
---|
| 651 | (tb, pid, eid)) |
---|
| 652 | elif state not in ('active', 'swapped', 'swapping', 'none'): |
---|
| 653 | raise service_error(service_error.internal, |
---|
| 654 | "Cannot get status of segment %s:%s/%s" % \ |
---|
| 655 | (tb, pid, eid)) |
---|
| 656 | else: return state |
---|
| 657 | |
---|
| 658 | |
---|
| 659 | def __call__(self, tb, eid, tbparams, tmpdir, timeout=0): |
---|
| 660 | """ |
---|
| 661 | Start a sub-experiment on a federant. |
---|
| 662 | |
---|
| 663 | Get the current state, modify or create as appropriate, ship data |
---|
| 664 | and configs and start the experiment. There are small ordering |
---|
| 665 | differences based on the initial state of the sub-experiment. |
---|
| 666 | """ |
---|
| 667 | # ops node in the federant |
---|
| 668 | host = "%s%s" % (tbparams[tb]['host'], tbparams[tb]['domain']) |
---|
| 669 | user = tbparams[tb]['user'] # federant user |
---|
| 670 | pid = tbparams[tb]['project'] # federant project |
---|
| 671 | # XXX |
---|
| 672 | base_confs = ( "hosts",) |
---|
| 673 | tclfile = "%s.%s.tcl" % (eid, tb) # sub-experiment description |
---|
| 674 | # Configuration directories on the remote machine |
---|
| 675 | proj_dir = "/proj/%s/exp/%s/tmp" % (pid, eid) |
---|
| 676 | tarfiles_dir = "/proj/%s/tarfiles/%s" % (pid, eid) |
---|
| 677 | rpms_dir = "/proj/%s/rpms/%s" % (pid, eid) |
---|
| 678 | |
---|
| 679 | state = self.get_state(user, host, tb, pid, eid) |
---|
| 680 | |
---|
| 681 | self.log.debug("[start_segment]: %s: %s" % (tb, state)) |
---|
| 682 | self.log.info("[start_segment]:transferring experiment to %s" % tb) |
---|
| 683 | |
---|
| 684 | if not self.scp_file("%s/%s/%s" % \ |
---|
| 685 | (tmpdir, tb, tclfile), user, host): |
---|
| 686 | return False |
---|
| 687 | |
---|
| 688 | if state == 'none': |
---|
| 689 | # Create a null copy of the experiment so that we capture any |
---|
| 690 | # logs there if the modify fails. Emulab software discards the |
---|
| 691 | # logs from a failed startexp |
---|
| 692 | if not self.scp_file("%s/null.tcl" % tmpdir, user, host): |
---|
| 693 | return False |
---|
| 694 | self.log.info("[start_segment]: Creating %s on %s" % (eid, tb)) |
---|
| 695 | timedout = False |
---|
| 696 | try: |
---|
| 697 | if not self.ssh_cmd(user, host, |
---|
| 698 | ("/usr/testbed/bin/startexp -i -f -w -p %s " + |
---|
| 699 | "-e %s null.tcl") % (pid, eid), "startexp", |
---|
| 700 | timeout=60 * 10): |
---|
| 701 | return False |
---|
| 702 | except self.ssh_cmd_timeout: |
---|
| 703 | timedout = True |
---|
| 704 | |
---|
| 705 | if timedout: |
---|
| 706 | state = self.get_state(user, host, self.ssh_privkey_file, |
---|
| 707 | tb, eid, pid) |
---|
| 708 | if state != "swapped": |
---|
| 709 | return False |
---|
| 710 | |
---|
| 711 | |
---|
| 712 | # Open up a temporary file to contain a script for setting up the |
---|
| 713 | # filespace for the new experiment. |
---|
| 714 | self.log.info("[start_segment]: creating script file") |
---|
| 715 | try: |
---|
| 716 | sf, scriptname = tempfile.mkstemp() |
---|
| 717 | scriptfile = os.fdopen(sf, 'w') |
---|
| 718 | except IOError: |
---|
| 719 | return False |
---|
[866c983] | 720 | |
---|
[4b362df] | 721 | scriptbase = os.path.basename(scriptname) |
---|
| 722 | |
---|
| 723 | # Script the filesystem changes |
---|
| 724 | print >>scriptfile, "/bin/rm -rf %s" % proj_dir |
---|
| 725 | # Clear and create the tarfiles and rpm directories |
---|
| 726 | for d in (tarfiles_dir, rpms_dir): |
---|
| 727 | print >>scriptfile, "/bin/rm -rf %s/*" % d |
---|
| 728 | print >>scriptfile, "mkdir -p %s" % d |
---|
| 729 | print >>scriptfile, 'mkdir -p %s' % proj_dir |
---|
| 730 | self.create_config_tree("%s/%s" % (tmpdir, tb), |
---|
| 731 | proj_dir, scriptfile) |
---|
| 732 | if os.path.isdir("%s/tarfiles" % tmpdir): |
---|
| 733 | self.create_config_tree("%s/tarfiles" % tmpdir, tarfiles_dir, |
---|
| 734 | scriptfile) |
---|
| 735 | if os.path.isdir("%s/rpms" % tmpdir): |
---|
| 736 | self.create_config_tree("%s/rpms" % tmpdir, rpms_dir, |
---|
| 737 | scriptfile) |
---|
| 738 | print >>scriptfile, "rm -f %s" % scriptbase |
---|
| 739 | scriptfile.close() |
---|
| 740 | |
---|
| 741 | # Move the script to the remote machine |
---|
| 742 | # XXX: could collide tempfile names on the remote host |
---|
| 743 | if self.scp_file(scriptname, user, host, scriptbase): |
---|
| 744 | os.remove(scriptname) |
---|
| 745 | else: |
---|
| 746 | return False |
---|
[866c983] | 747 | |
---|
[4b362df] | 748 | # Execute the script (and the script's last line deletes it) |
---|
| 749 | if not self.ssh_cmd(user, host, "sh -x %s" % scriptbase): |
---|
| 750 | return False |
---|
[79b6596] | 751 | |
---|
[4b362df] | 752 | for f in base_confs: |
---|
| 753 | if not self.scp_file("%s/%s" % (tmpdir, f), user, host, |
---|
| 754 | "%s/%s" % (proj_dir, f)): |
---|
[79b6596] | 755 | return False |
---|
[4b362df] | 756 | if not self.ship_configs(host, user, "%s/%s" % (tmpdir, tb), |
---|
| 757 | proj_dir): |
---|
[79b6596] | 758 | return False |
---|
[4b362df] | 759 | if os.path.isdir("%s/tarfiles" % tmpdir): |
---|
| 760 | if not self.ship_configs(host, user, |
---|
| 761 | "%s/tarfiles" % tmpdir, tarfiles_dir): |
---|
| 762 | return False |
---|
| 763 | if os.path.isdir("%s/rpms" % tmpdir): |
---|
| 764 | if not self.ship_configs(host, user, |
---|
| 765 | "%s/rpms" % tmpdir, tarfiles_dir): |
---|
| 766 | return False |
---|
| 767 | # Stage the new configuration (active experiments will stay swapped |
---|
| 768 | # in now) |
---|
| 769 | self.log.info("[start_segment]: Modifying %s on %s" % (eid, tb)) |
---|
[79b6596] | 770 | try: |
---|
| 771 | if not self.ssh_cmd(user, host, |
---|
[4b362df] | 772 | "/usr/testbed/bin/modexp -r -s -w %s %s %s" % \ |
---|
| 773 | (pid, eid, tclfile), |
---|
| 774 | "modexp", timeout= 60 * 10): |
---|
[79b6596] | 775 | return False |
---|
| 776 | except self.ssh_cmd_timeout: |
---|
[4b362df] | 777 | print "modexp timeout" |
---|
| 778 | # There's really no way to see if this succeeded or failed, so |
---|
| 779 | # if it hangs, assume the worst. |
---|
| 780 | return False |
---|
| 781 | # Active experiments are still swapped, this swaps the others in. |
---|
| 782 | if state != 'active': |
---|
| 783 | self.log.info("[start_segment]: Swapping %s in on %s" % \ |
---|
| 784 | (eid, tb)) |
---|
| 785 | timedout = False |
---|
| 786 | try: |
---|
| 787 | if not self.ssh_cmd(user, host, |
---|
| 788 | "/usr/testbed/bin/swapexp -w %s %s in" % (pid, eid), |
---|
| 789 | "swapexp", timeout=10*60): |
---|
| 790 | return False |
---|
| 791 | except self.ssh_cmd_timeout: |
---|
| 792 | timedout = True |
---|
| 793 | |
---|
| 794 | # If the command was terminated, but completed successfully, |
---|
| 795 | # report success. |
---|
| 796 | if timedout: |
---|
| 797 | state = self.get_state(user, host, self.ssh_privkey_file, |
---|
| 798 | tb, eid, pid) |
---|
| 799 | self.log.debug("[start_segment]: swapin timed out (state)") |
---|
| 800 | return state == 'active' |
---|
| 801 | # Everything has gone OK. |
---|
| 802 | return True |
---|
| 803 | |
---|
| 804 | class stop_segment(emulab_segment): |
---|
| 805 | def __init__(self, log=None, keyfile=None, debug=False): |
---|
| 806 | experiment_control_local.emulab_segment.__init__(self, |
---|
| 807 | log=log, keyfile=keyfile, debug=debug) |
---|
| 808 | |
---|
| 809 | def __call__(self, tb, eid, tbparams): |
---|
| 810 | """ |
---|
| 811 | Stop a sub experiment by calling swapexp on the federant |
---|
| 812 | """ |
---|
| 813 | user = tbparams[tb]['user'] |
---|
| 814 | host = "%s%s" % (tbparams[tb]['host'], tbparams[tb]['domain']) |
---|
| 815 | pid = tbparams[tb]['project'] |
---|
| 816 | |
---|
| 817 | self.log.info("[stop_segment]: Stopping %s on %s" % (eid, tb)) |
---|
| 818 | return self.ssh_cmd(user, host, |
---|
| 819 | "/usr/testbed/bin/swapexp -w %s %s out" % (pid, eid)) |
---|
[866c983] | 820 | |
---|
| 821 | |
---|
[6679c122] | 822 | def generate_ssh_keys(self, dest, type="rsa" ): |
---|
[866c983] | 823 | """ |
---|
| 824 | Generate a set of keys for the gateways to use to talk. |
---|
| 825 | |
---|
| 826 | Keys are of type type and are stored in the required dest file. |
---|
| 827 | """ |
---|
| 828 | valid_types = ("rsa", "dsa") |
---|
| 829 | t = type.lower(); |
---|
| 830 | if t not in valid_types: raise ValueError |
---|
| 831 | cmd = [self.ssh_keygen, '-t', t, '-N', '', '-f', dest] |
---|
| 832 | |
---|
| 833 | try: |
---|
| 834 | trace = open("/dev/null", "w") |
---|
| 835 | except IOError: |
---|
| 836 | raise service_error(service_error.internal, |
---|
| 837 | "Cannot open /dev/null??"); |
---|
| 838 | |
---|
| 839 | # May raise CalledProcessError |
---|
| 840 | self.log.debug("[generate_ssh_keys]: %s" % " ".join(cmd)) |
---|
| 841 | rv = call(cmd, stdout=trace, stderr=trace) |
---|
| 842 | if rv != 0: |
---|
| 843 | raise service_error(service_error.internal, |
---|
| 844 | "Cannot generate nonce ssh keys. %s return code %d" \ |
---|
| 845 | % (self.ssh_keygen, rv)) |
---|
[6679c122] | 846 | |
---|
[0d830de] | 847 | def gentopo(self, str): |
---|
[866c983] | 848 | """ |
---|
| 849 | Generate the topology dtat structure from the splitter's XML |
---|
| 850 | representation of it. |
---|
| 851 | |
---|
| 852 | The topology XML looks like: |
---|
| 853 | <experiment> |
---|
| 854 | <nodes> |
---|
| 855 | <node><vname></vname><ips>ip1:ip2</ips></node> |
---|
| 856 | </nodes> |
---|
| 857 | <lans> |
---|
| 858 | <lan> |
---|
| 859 | <vname></vname><vnode></vnode><ip></ip> |
---|
| 860 | <bandwidth></bandwidth><member>node:port</member> |
---|
| 861 | </lan> |
---|
| 862 | </lans> |
---|
| 863 | """ |
---|
| 864 | class topo_parse: |
---|
| 865 | """ |
---|
| 866 | Parse the topology XML and create the dats structure. |
---|
| 867 | """ |
---|
| 868 | def __init__(self): |
---|
| 869 | # Typing of the subelements for data conversion |
---|
| 870 | self.str_subelements = ('vname', 'vnode', 'ips', 'ip', 'member') |
---|
| 871 | self.int_subelements = ( 'bandwidth',) |
---|
| 872 | self.float_subelements = ( 'delay',) |
---|
| 873 | # The final data structure |
---|
| 874 | self.nodes = [ ] |
---|
| 875 | self.lans = [ ] |
---|
| 876 | self.topo = { \ |
---|
| 877 | 'node': self.nodes,\ |
---|
| 878 | 'lan' : self.lans,\ |
---|
| 879 | } |
---|
| 880 | self.element = { } # Current element being created |
---|
| 881 | self.chars = "" # Last text seen |
---|
| 882 | |
---|
| 883 | def end_element(self, name): |
---|
| 884 | # After each sub element the contents is added to the current |
---|
| 885 | # element or to the appropriate list. |
---|
| 886 | if name == 'node': |
---|
| 887 | self.nodes.append(self.element) |
---|
| 888 | self.element = { } |
---|
| 889 | elif name == 'lan': |
---|
| 890 | self.lans.append(self.element) |
---|
| 891 | self.element = { } |
---|
| 892 | elif name in self.str_subelements: |
---|
| 893 | self.element[name] = self.chars |
---|
| 894 | self.chars = "" |
---|
| 895 | elif name in self.int_subelements: |
---|
| 896 | self.element[name] = int(self.chars) |
---|
| 897 | self.chars = "" |
---|
| 898 | elif name in self.float_subelements: |
---|
| 899 | self.element[name] = float(self.chars) |
---|
| 900 | self.chars = "" |
---|
| 901 | |
---|
| 902 | def found_chars(self, data): |
---|
| 903 | self.chars += data.rstrip() |
---|
| 904 | |
---|
| 905 | |
---|
| 906 | tp = topo_parse(); |
---|
| 907 | parser = xml.parsers.expat.ParserCreate() |
---|
| 908 | parser.EndElementHandler = tp.end_element |
---|
| 909 | parser.CharacterDataHandler = tp.found_chars |
---|
| 910 | |
---|
| 911 | parser.Parse(str) |
---|
| 912 | |
---|
| 913 | return tp.topo |
---|
| 914 | |
---|
[0d830de] | 915 | |
---|
| 916 | def genviz(self, topo): |
---|
[866c983] | 917 | """ |
---|
| 918 | Generate the visualization the virtual topology |
---|
| 919 | """ |
---|
| 920 | |
---|
| 921 | neato = "/usr/local/bin/neato" |
---|
| 922 | # These are used to parse neato output and to create the visualization |
---|
| 923 | # file. |
---|
| 924 | vis_re = re.compile('^\s*"?([\w\-]+)"?\s+\[.*pos="(\d+),(\d+)"') |
---|
| 925 | vis_fmt = "<node><name>%s</name><x>%s</x><y>%s</y><type>" + \ |
---|
| 926 | "%s</type></node>" |
---|
| 927 | |
---|
| 928 | try: |
---|
| 929 | # Node names |
---|
| 930 | nodes = [ n['vname'] for n in topo['node'] ] |
---|
| 931 | topo_lans = topo['lan'] |
---|
| 932 | except KeyError: |
---|
| 933 | raise service_error(service_error.internal, "Bad topology") |
---|
| 934 | |
---|
| 935 | lans = { } |
---|
| 936 | links = { } |
---|
| 937 | |
---|
| 938 | # Walk through the virtual topology, organizing the connections into |
---|
| 939 | # 2-node connections (links) and more-than-2-node connections (lans). |
---|
| 940 | # When a lan is created, it's added to the list of nodes (there's a |
---|
| 941 | # node in the visualization for the lan). |
---|
| 942 | for l in topo_lans: |
---|
| 943 | if links.has_key(l['vname']): |
---|
| 944 | if len(links[l['vname']]) < 2: |
---|
| 945 | links[l['vname']].append(l['vnode']) |
---|
| 946 | else: |
---|
| 947 | nodes.append(l['vname']) |
---|
| 948 | lans[l['vname']] = links[l['vname']] |
---|
| 949 | del links[l['vname']] |
---|
| 950 | lans[l['vname']].append(l['vnode']) |
---|
| 951 | elif lans.has_key(l['vname']): |
---|
| 952 | lans[l['vname']].append(l['vnode']) |
---|
| 953 | else: |
---|
| 954 | links[l['vname']] = [ l['vnode'] ] |
---|
| 955 | |
---|
| 956 | |
---|
| 957 | # Open up a temporary file for dot to turn into a visualization |
---|
| 958 | try: |
---|
| 959 | df, dotname = tempfile.mkstemp() |
---|
| 960 | dotfile = os.fdopen(df, 'w') |
---|
| 961 | except IOError: |
---|
| 962 | raise service_error(service_error.internal, |
---|
| 963 | "Failed to open file in genviz") |
---|
| 964 | |
---|
| 965 | # Generate a dot/neato input file from the links, nodes and lans |
---|
| 966 | try: |
---|
| 967 | print >>dotfile, "graph G {" |
---|
| 968 | for n in nodes: |
---|
| 969 | print >>dotfile, '\t"%s"' % n |
---|
| 970 | for l in links.keys(): |
---|
| 971 | print >>dotfile, '\t"%s" -- "%s"' % tuple(links[l]) |
---|
| 972 | for l in lans.keys(): |
---|
| 973 | for n in lans[l]: |
---|
| 974 | print >>dotfile, '\t "%s" -- "%s"' % (n,l) |
---|
| 975 | print >>dotfile, "}" |
---|
| 976 | dotfile.close() |
---|
| 977 | except TypeError: |
---|
| 978 | raise service_error(service_error.internal, |
---|
| 979 | "Single endpoint link in vtopo") |
---|
| 980 | except IOError: |
---|
| 981 | raise service_error(service_error.internal, "Cannot write dot file") |
---|
| 982 | |
---|
| 983 | # Use dot to create a visualization |
---|
| 984 | dot = Popen([neato, '-Gstart=rand', '-Gepsilon=0.005', '-Gmaxiter=2000', |
---|
| 985 | '-Gpack=true', dotname], stdout=PIPE) |
---|
| 986 | |
---|
| 987 | # Translate dot to vis format |
---|
| 988 | vis_nodes = [ ] |
---|
| 989 | vis = { 'node': vis_nodes } |
---|
| 990 | for line in dot.stdout: |
---|
| 991 | m = vis_re.match(line) |
---|
| 992 | if m: |
---|
| 993 | vn = m.group(1) |
---|
| 994 | vis_node = {'name': vn, \ |
---|
| 995 | 'x': float(m.group(2)),\ |
---|
| 996 | 'y' : float(m.group(3)),\ |
---|
| 997 | } |
---|
| 998 | if vn in links.keys() or vn in lans.keys(): |
---|
| 999 | vis_node['type'] = 'lan' |
---|
| 1000 | else: |
---|
| 1001 | vis_node['type'] = 'node' |
---|
| 1002 | vis_nodes.append(vis_node) |
---|
| 1003 | rv = dot.wait() |
---|
| 1004 | |
---|
| 1005 | os.remove(dotname) |
---|
| 1006 | if rv == 0 : return vis |
---|
| 1007 | else: return None |
---|
[d0ae12d] | 1008 | |
---|
[4064742] | 1009 | def get_access(self, tb, nodes, user, tbparam, master, export_project, |
---|
[866c983] | 1010 | access_user): |
---|
| 1011 | """ |
---|
| 1012 | Get access to testbed through fedd and set the parameters for that tb |
---|
| 1013 | """ |
---|
| 1014 | uri = self.tbmap.get(tb, None) |
---|
| 1015 | if not uri: |
---|
| 1016 | raise service_error(serice_error.server_config, |
---|
| 1017 | "Unknown testbed: %s" % tb) |
---|
| 1018 | |
---|
| 1019 | # currently this lumps all users into one service access group |
---|
| 1020 | service_keys = [ a for u in user \ |
---|
| 1021 | for a in u.get('access', []) \ |
---|
| 1022 | if a.has_key('sshPubkey')] |
---|
| 1023 | |
---|
| 1024 | if len(service_keys) == 0: |
---|
| 1025 | raise service_error(service_error.req, |
---|
| 1026 | "Must have at least one SSH pubkey for services") |
---|
| 1027 | |
---|
| 1028 | |
---|
| 1029 | for p, u in access_user: |
---|
| 1030 | self.log.debug(("[get_access] Attempting access from (%s, %s) " + \ |
---|
| 1031 | "to %s") % ((p or "None"), u, uri)) |
---|
| 1032 | |
---|
| 1033 | if p: |
---|
| 1034 | # Request with user and project specified |
---|
| 1035 | req = {\ |
---|
| 1036 | 'destinationTestbed' : { 'uri' : uri }, |
---|
| 1037 | 'project': { |
---|
| 1038 | 'name': {'localname': p}, |
---|
| 1039 | 'user': [ {'userID': { 'localname': u } } ], |
---|
| 1040 | }, |
---|
| 1041 | 'user': user, |
---|
| 1042 | 'allocID' : { 'localname': 'test' }, |
---|
| 1043 | 'createAccess' : [ { 'sshPubkey' : self.ssh_pubkey } ], |
---|
| 1044 | 'serviceAccess' : service_keys |
---|
| 1045 | } |
---|
| 1046 | else: |
---|
| 1047 | # Request with only user specified |
---|
| 1048 | req = {\ |
---|
| 1049 | 'destinationTestbed' : { 'uri' : uri }, |
---|
| 1050 | 'user': [ {'userID': { 'localname': u } } ], |
---|
| 1051 | 'allocID' : { 'localname': 'test' }, |
---|
| 1052 | 'createAccess' : [ { 'sshPubkey' : self.ssh_pubkey } ], |
---|
| 1053 | 'serviceAccess' : service_keys |
---|
| 1054 | } |
---|
| 1055 | |
---|
| 1056 | if tb == master: |
---|
| 1057 | # NB, the export_project parameter is a dict that includes |
---|
| 1058 | # the type |
---|
| 1059 | req['exportProject'] = export_project |
---|
| 1060 | |
---|
| 1061 | # node resources if any |
---|
| 1062 | if nodes != None and len(nodes) > 0: |
---|
| 1063 | rnodes = [ ] |
---|
| 1064 | for n in nodes: |
---|
| 1065 | rn = { } |
---|
| 1066 | image, hw, count = n.split(":") |
---|
| 1067 | if image: rn['image'] = [ image ] |
---|
| 1068 | if hw: rn['hardware'] = [ hw ] |
---|
| 1069 | if count and int(count) >0 : rn['count'] = int(count) |
---|
| 1070 | rnodes.append(rn) |
---|
| 1071 | req['resources']= { } |
---|
| 1072 | req['resources']['node'] = rnodes |
---|
| 1073 | |
---|
| 1074 | try: |
---|
| 1075 | if self.local_access.has_key(uri): |
---|
| 1076 | # Local access call |
---|
| 1077 | req = { 'RequestAccessRequestBody' : req } |
---|
| 1078 | r = self.local_access[uri].RequestAccess(req, |
---|
| 1079 | fedid(file=self.cert_file)) |
---|
| 1080 | r = { 'RequestAccessResponseBody' : r } |
---|
| 1081 | else: |
---|
| 1082 | r = self.call_RequestAccess(uri, req, |
---|
| 1083 | self.cert_file, self.cert_pwd, self.trusted_certs) |
---|
| 1084 | except service_error, e: |
---|
| 1085 | if e.code == service_error.access: |
---|
| 1086 | self.log.debug("[get_access] Access denied") |
---|
| 1087 | r = None |
---|
| 1088 | continue |
---|
| 1089 | else: |
---|
| 1090 | raise e |
---|
| 1091 | |
---|
| 1092 | if r.has_key('RequestAccessResponseBody'): |
---|
| 1093 | # Through to here we have a valid response, not a fault. |
---|
| 1094 | # Access denied is a fault, so something better or worse than |
---|
| 1095 | # access denied has happened. |
---|
| 1096 | r = r['RequestAccessResponseBody'] |
---|
| 1097 | self.log.debug("[get_access] Access granted") |
---|
| 1098 | break |
---|
| 1099 | else: |
---|
| 1100 | raise service_error(service_error.protocol, |
---|
| 1101 | "Bad proxy response") |
---|
| 1102 | |
---|
| 1103 | if not r: |
---|
| 1104 | raise service_error(service_error.access, |
---|
| 1105 | "Access denied by %s (%s)" % (tb, uri)) |
---|
| 1106 | |
---|
| 1107 | e = r['emulab'] |
---|
| 1108 | p = e['project'] |
---|
| 1109 | tbparam[tb] = { |
---|
| 1110 | "boss": e['boss'], |
---|
| 1111 | "host": e['ops'], |
---|
| 1112 | "domain": e['domain'], |
---|
| 1113 | "fs": e['fileServer'], |
---|
| 1114 | "eventserver": e['eventServer'], |
---|
| 1115 | "project": unpack_id(p['name']), |
---|
| 1116 | "emulab" : e, |
---|
| 1117 | "allocID" : r['allocID'], |
---|
| 1118 | } |
---|
| 1119 | # Make the testbed name be the label the user applied |
---|
| 1120 | p['testbed'] = {'localname': tb } |
---|
| 1121 | |
---|
| 1122 | for u in p['user']: |
---|
| 1123 | role = u.get('role', None) |
---|
| 1124 | if role == 'experimentCreation': |
---|
| 1125 | tbparam[tb]['user'] = unpack_id(u['userID']) |
---|
| 1126 | break |
---|
| 1127 | else: |
---|
| 1128 | raise service_error(service_error.internal, |
---|
| 1129 | "No createExperimentUser from %s" %tb) |
---|
| 1130 | |
---|
| 1131 | # Add attributes to barameter space. We don't allow attributes to |
---|
| 1132 | # overlay any parameters already installed. |
---|
| 1133 | for a in e['fedAttr']: |
---|
| 1134 | try: |
---|
| 1135 | if a['attribute'] and isinstance(a['attribute'], basestring)\ |
---|
| 1136 | and not tbparam[tb].has_key(a['attribute'].lower()): |
---|
| 1137 | tbparam[tb][a['attribute'].lower()] = a['value'] |
---|
| 1138 | except KeyError: |
---|
| 1139 | self.log.error("Bad attribute in response: %s" % a) |
---|
| 1140 | |
---|
[d81971a] | 1141 | def release_access(self, tb, aid): |
---|
[866c983] | 1142 | """ |
---|
| 1143 | Release access to testbed through fedd |
---|
| 1144 | """ |
---|
| 1145 | |
---|
| 1146 | uri = self.tbmap.get(tb, None) |
---|
| 1147 | if not uri: |
---|
| 1148 | raise service_error(serice_error.server_config, |
---|
| 1149 | "Unknown testbed: %s" % tb) |
---|
| 1150 | |
---|
| 1151 | if self.local_access.has_key(uri): |
---|
| 1152 | resp = self.local_access[uri].ReleaseAccess(\ |
---|
| 1153 | { 'ReleaseAccessRequestBody' : {'allocID': aid},}, |
---|
| 1154 | fedid(file=self.cert_file)) |
---|
| 1155 | resp = { 'ReleaseAccessResponseBody': resp } |
---|
| 1156 | else: |
---|
| 1157 | resp = self.call_ReleaseAccess(uri, {'allocID': aid}, |
---|
| 1158 | self.cert_file, self.cert_pwd, self.trusted_certs) |
---|
| 1159 | |
---|
| 1160 | # better error coding |
---|
[d81971a] | 1161 | |
---|
[f4f4117] | 1162 | def remote_splitter(self, uri, desc, master): |
---|
| 1163 | |
---|
[866c983] | 1164 | req = { |
---|
| 1165 | 'description' : { 'ns2description': desc }, |
---|
| 1166 | 'master': master, |
---|
| 1167 | 'include_fedkit': bool(self.fedkit), |
---|
| 1168 | 'include_gatewaykit': bool(self.gatewaykit) |
---|
| 1169 | } |
---|
| 1170 | |
---|
| 1171 | r = self.call_Ns2Split(uri, req, self.cert_file, self.cert_pwd, |
---|
| 1172 | self.trusted_certs) |
---|
| 1173 | |
---|
| 1174 | if r.has_key('Ns2SplitResponseBody'): |
---|
| 1175 | r = r['Ns2SplitResponseBody'] |
---|
| 1176 | if r.has_key('output'): |
---|
| 1177 | return r['output'].splitlines() |
---|
| 1178 | else: |
---|
| 1179 | raise service_error(service_error.protocol, |
---|
| 1180 | "Bad splitter response (no output)") |
---|
| 1181 | else: |
---|
| 1182 | raise service_error(service_error.protocol, "Bad splitter response") |
---|
| 1183 | |
---|
[6679c122] | 1184 | class current_testbed: |
---|
[866c983] | 1185 | """ |
---|
| 1186 | Object for collecting the current testbed description. The testbed |
---|
| 1187 | description is saved to a file with the local testbed variables |
---|
| 1188 | subsittuted line by line. |
---|
| 1189 | """ |
---|
| 1190 | def __init__(self, eid, tmpdir, fedkit, gatewaykit): |
---|
| 1191 | def tar_list_to_string(tl): |
---|
| 1192 | if tl is None: return None |
---|
| 1193 | |
---|
| 1194 | rv = "" |
---|
| 1195 | for t in tl: |
---|
| 1196 | rv += " %s PROJDIR/tarfiles/EID/%s" % \ |
---|
| 1197 | (t[0], os.path.basename(t[1])) |
---|
| 1198 | return rv |
---|
| 1199 | |
---|
| 1200 | |
---|
| 1201 | self.begin_testbed = re.compile("^#\s+Begin\s+Testbed\s+\((\w+)\)") |
---|
| 1202 | self.end_testbed = re.compile("^#\s+End\s+Testbed\s+\((\w+)\)") |
---|
| 1203 | self.current_testbed = None |
---|
| 1204 | self.testbed_file = None |
---|
| 1205 | |
---|
| 1206 | self.def_expstart = \ |
---|
| 1207 | "sudo -H /bin/sh FEDDIR/fed_bootstrap >& /tmp/federate"; |
---|
| 1208 | self.def_mexpstart = "sudo -H FEDDIR/make_hosts FEDDIR/hosts"; |
---|
| 1209 | self.def_gwstart = \ |
---|
| 1210 | "sudo -H FEDDIR/fed-tun.pl -f GWCONF>& /tmp/bridge.log"; |
---|
| 1211 | self.def_mgwstart = \ |
---|
| 1212 | "sudo -H FEDDIR/fed-tun.pl -f GWCONF >& /tmp/bridge.log"; |
---|
| 1213 | self.def_gwimage = "FBSD61-TUNNEL2"; |
---|
| 1214 | self.def_gwtype = "pc"; |
---|
| 1215 | self.def_mgwcmd = '# ' |
---|
| 1216 | self.def_mgwcmdparams = '' |
---|
| 1217 | self.def_gwcmd = '# ' |
---|
| 1218 | self.def_gwcmdparams = '' |
---|
| 1219 | |
---|
| 1220 | self.eid = eid |
---|
| 1221 | self.tmpdir = tmpdir |
---|
| 1222 | # Convert fedkit and gateway kit (which are lists of tuples) into a |
---|
| 1223 | # substituition string. |
---|
| 1224 | self.fedkit = tar_list_to_string(fedkit) |
---|
| 1225 | self.gatewaykit = tar_list_to_string(gatewaykit) |
---|
| 1226 | |
---|
| 1227 | def __call__(self, line, master, allocated, tbparams): |
---|
| 1228 | # Capture testbed topology descriptions |
---|
| 1229 | if self.current_testbed == None: |
---|
| 1230 | m = self.begin_testbed.match(line) |
---|
| 1231 | if m != None: |
---|
| 1232 | self.current_testbed = m.group(1) |
---|
| 1233 | if self.current_testbed == None: |
---|
| 1234 | raise service_error(service_error.req, |
---|
| 1235 | "Bad request format (unnamed testbed)") |
---|
| 1236 | allocated[self.current_testbed] = \ |
---|
| 1237 | allocated.get(self.current_testbed,0) + 1 |
---|
| 1238 | tb_dir = "%s/%s" % (self.tmpdir, self.current_testbed) |
---|
| 1239 | if not os.path.exists(tb_dir): |
---|
| 1240 | try: |
---|
| 1241 | os.mkdir(tb_dir) |
---|
| 1242 | except IOError: |
---|
| 1243 | raise service_error(service_error.internal, |
---|
| 1244 | "Cannot create %s" % tb_dir) |
---|
| 1245 | try: |
---|
| 1246 | self.testbed_file = open("%s/%s.%s.tcl" % |
---|
| 1247 | (tb_dir, self.eid, self.current_testbed), 'w') |
---|
| 1248 | except IOError: |
---|
| 1249 | self.testbed_file = None |
---|
| 1250 | return True |
---|
| 1251 | else: return False |
---|
| 1252 | else: |
---|
| 1253 | m = self.end_testbed.match(line) |
---|
| 1254 | if m != None: |
---|
| 1255 | if m.group(1) != self.current_testbed: |
---|
| 1256 | raise service_error(service_error.internal, |
---|
| 1257 | "Mismatched testbed markers!?") |
---|
| 1258 | if self.testbed_file != None: |
---|
| 1259 | self.testbed_file.close() |
---|
| 1260 | self.testbed_file = None |
---|
| 1261 | self.current_testbed = None |
---|
| 1262 | elif self.testbed_file: |
---|
| 1263 | # Substitute variables and put the line into the local |
---|
| 1264 | # testbed file. |
---|
| 1265 | gwtype = tbparams[self.current_testbed].get(\ |
---|
| 1266 | 'connectortype', self.def_gwtype) |
---|
| 1267 | gwimage = tbparams[self.current_testbed].get(\ |
---|
| 1268 | 'connectorimage', self.def_gwimage) |
---|
| 1269 | mgwstart = tbparams[self.current_testbed].get(\ |
---|
| 1270 | 'masterconnectorstartcmd', self.def_mgwstart) |
---|
| 1271 | mexpstart = tbparams[self.current_testbed].get(\ |
---|
| 1272 | 'masternodestartcmd', self.def_mexpstart) |
---|
| 1273 | gwstart = tbparams[self.current_testbed].get(\ |
---|
| 1274 | 'slaveconnectorstartcmd', self.def_gwstart) |
---|
| 1275 | expstart = tbparams[self.current_testbed].get(\ |
---|
| 1276 | 'slavenodestartcmd', self.def_expstart) |
---|
| 1277 | project = tbparams[self.current_testbed].get('project') |
---|
| 1278 | gwcmd = tbparams[self.current_testbed].get(\ |
---|
| 1279 | 'slaveconnectorcmd', self.def_gwcmd) |
---|
| 1280 | gwcmdparams = tbparams[self.current_testbed].get(\ |
---|
| 1281 | 'slaveconnectorcmdparams', self.def_gwcmdparams) |
---|
| 1282 | mgwcmd = tbparams[self.current_testbed].get(\ |
---|
| 1283 | 'masterconnectorcmd', self.def_gwcmd) |
---|
| 1284 | mgwcmdparams = tbparams[self.current_testbed].get(\ |
---|
| 1285 | 'masterconnectorcmdparams', self.def_gwcmdparams) |
---|
| 1286 | line = re.sub("GWTYPE", gwtype, line) |
---|
| 1287 | line = re.sub("GWIMAGE", gwimage, line) |
---|
| 1288 | if self.current_testbed == master: |
---|
| 1289 | line = re.sub("GWSTART", mgwstart, line) |
---|
| 1290 | line = re.sub("EXPSTART", mexpstart, line) |
---|
| 1291 | # NB GWCMDPARAMS is a prefix of GWCMD, so expand first |
---|
| 1292 | line = re.sub("GWCMDPARAMS", mgwcmdparams, line) |
---|
| 1293 | line = re.sub("(#\s*)?GWCMD", mgwcmd, line) |
---|
| 1294 | else: |
---|
| 1295 | line = re.sub("GWSTART", gwstart, line) |
---|
| 1296 | line = re.sub("EXPSTART", expstart, line) |
---|
| 1297 | # NB GWCMDPARAMS is a prefix of GWCMD, so expand first |
---|
| 1298 | line = re.sub("GWCMDPARAMS", gwcmdparams, line) |
---|
| 1299 | line = re.sub("(#\s*)?GWCMD", gwcmd, line) |
---|
| 1300 | #These expansions contain EID and PROJDIR. NB these are |
---|
| 1301 | # local fedkit and gatewaykit, which are strings. |
---|
| 1302 | if self.fedkit: |
---|
| 1303 | line = re.sub("FEDKIT", self.fedkit, line) |
---|
| 1304 | if self.gatewaykit: |
---|
| 1305 | line = re.sub("GATEWAYKIT", self.gatewaykit, line) |
---|
| 1306 | line = re.sub("GWCONF", "FEDDIR`hostname`.gw.conf", line) |
---|
| 1307 | line = re.sub("PROJDIR", "/proj/%s/" % project, line) |
---|
| 1308 | line = re.sub("EID", self.eid, line) |
---|
| 1309 | line = re.sub("FEDDIR", "/proj/%s/exp/%s/tmp/" % \ |
---|
| 1310 | (project, self.eid), line) |
---|
| 1311 | print >>self.testbed_file, line |
---|
| 1312 | return True |
---|
[6679c122] | 1313 | |
---|
| 1314 | class allbeds: |
---|
[866c983] | 1315 | """ |
---|
| 1316 | Process the Allbeds section. Get access to each federant and save the |
---|
| 1317 | parameters in tbparams |
---|
| 1318 | """ |
---|
| 1319 | def __init__(self, get_access): |
---|
| 1320 | self.begin_allbeds = re.compile("^#\s+Begin\s+Allbeds") |
---|
| 1321 | self.end_allbeds = re.compile("^#\s+End\s+Allbeds") |
---|
| 1322 | self.in_allbeds = False |
---|
| 1323 | self.get_access = get_access |
---|
| 1324 | |
---|
| 1325 | def __call__(self, line, user, tbparams, master, export_project, |
---|
| 1326 | access_user): |
---|
| 1327 | # Testbed access parameters |
---|
| 1328 | if not self.in_allbeds: |
---|
| 1329 | if self.begin_allbeds.match(line): |
---|
| 1330 | self.in_allbeds = True |
---|
| 1331 | return True |
---|
| 1332 | else: |
---|
| 1333 | return False |
---|
| 1334 | else: |
---|
| 1335 | if self.end_allbeds.match(line): |
---|
| 1336 | self.in_allbeds = False |
---|
| 1337 | else: |
---|
| 1338 | nodes = line.split('|') |
---|
| 1339 | tb = nodes.pop(0) |
---|
| 1340 | self.get_access(tb, nodes, user, tbparams, master, |
---|
| 1341 | export_project, access_user) |
---|
| 1342 | return True |
---|
[6679c122] | 1343 | |
---|
| 1344 | class gateways: |
---|
[866c983] | 1345 | def __init__(self, eid, master, tmpdir, gw_pubkey, |
---|
| 1346 | gw_secretkey, copy_file, fedkit): |
---|
| 1347 | self.begin_gateways = \ |
---|
| 1348 | re.compile("^#\s+Begin\s+gateways\s+\((\w+)\)") |
---|
| 1349 | self.end_gateways = re.compile("^#\s+End\s+gateways\s+\((\w+)\)") |
---|
| 1350 | self.current_gateways = None |
---|
| 1351 | self.control_gateway = None |
---|
| 1352 | self.active_end = { } |
---|
| 1353 | |
---|
| 1354 | self.eid = eid |
---|
| 1355 | self.master = master |
---|
| 1356 | self.tmpdir = tmpdir |
---|
| 1357 | self.gw_pubkey_base = gw_pubkey |
---|
| 1358 | self.gw_secretkey_base = gw_secretkey |
---|
| 1359 | |
---|
| 1360 | self.copy_file = copy_file |
---|
| 1361 | self.fedkit = fedkit |
---|
| 1362 | |
---|
| 1363 | |
---|
| 1364 | def gateway_conf_file(self, gw, master, eid, pubkey, privkey, |
---|
| 1365 | active_end, tbparams, dtb, myname, desthost, type): |
---|
| 1366 | """ |
---|
| 1367 | Produce a gateway configuration file from a gateways line. |
---|
| 1368 | """ |
---|
| 1369 | |
---|
| 1370 | sproject = tbparams[gw].get('project', 'project') |
---|
| 1371 | dproject = tbparams[dtb].get('project', 'project') |
---|
| 1372 | sdomain = ".%s.%s%s" % (eid, sproject, |
---|
| 1373 | tbparams[gw].get('domain', ".example.com")) |
---|
| 1374 | ddomain = ".%s.%s%s" % (eid, dproject, |
---|
| 1375 | tbparams[dtb].get('domain', ".example.com")) |
---|
| 1376 | boss = tbparams[master].get('boss', "boss") |
---|
| 1377 | fs = tbparams[master].get('fs', "fs") |
---|
| 1378 | event_server = "%s%s" % \ |
---|
| 1379 | (tbparams[gw].get('eventserver', "event_server"), |
---|
| 1380 | tbparams[gw].get('domain', "example.com")) |
---|
| 1381 | remote_event_server = "%s%s" % \ |
---|
| 1382 | (tbparams[dtb].get('eventserver', "event_server"), |
---|
| 1383 | tbparams[dtb].get('domain', "example.com")) |
---|
| 1384 | seer_control = "%s%s" % \ |
---|
| 1385 | (tbparams[gw].get('control', "control"), sdomain) |
---|
| 1386 | tunnel_iface = tbparams[gw].get("tunnelinterface", None) |
---|
| 1387 | |
---|
| 1388 | if self.fedkit: |
---|
| 1389 | remote_script_dir = "/usr/local/federation/bin" |
---|
| 1390 | local_script_dir = "/usr/local/federation/bin" |
---|
| 1391 | else: |
---|
| 1392 | remote_script_dir = "/proj/%s/exp/%s/tmp" % ( dproject, eid) |
---|
| 1393 | local_script_dir = "/proj/%s/exp/%s/tmp" % ( sproject, eid) |
---|
| 1394 | |
---|
| 1395 | local_key_dir = "/proj/%s/exp/%s/tmp" % ( sproject, eid) |
---|
| 1396 | remote_conf_dir = "/proj/%s/exp/%s/tmp" % ( dproject, eid) |
---|
| 1397 | tunnel_cfg = tbparams[gw].get("tunnelcfg", "false") |
---|
| 1398 | |
---|
| 1399 | conf_file = "%s%s.gw.conf" % (myname, sdomain) |
---|
| 1400 | remote_conf_file = "%s%s.gw.conf" % (desthost, ddomain) |
---|
| 1401 | |
---|
| 1402 | # translate to lower case so the `hostname` hack for specifying |
---|
| 1403 | # configuration files works. |
---|
| 1404 | conf_file = conf_file.lower(); |
---|
| 1405 | remote_conf_file = remote_conf_file.lower(); |
---|
| 1406 | |
---|
| 1407 | if dtb == master: |
---|
| 1408 | active = "false" |
---|
| 1409 | elif gw == master: |
---|
| 1410 | active = "true" |
---|
| 1411 | elif active_end.has_key('%s-%s' % (dtb, gw)): |
---|
| 1412 | active = "false" |
---|
| 1413 | else: |
---|
| 1414 | active_end['%s-%s' % (gw, dtb)] = 1 |
---|
| 1415 | active = "true" |
---|
| 1416 | |
---|
| 1417 | gwconfig = open("%s/%s/%s" % (self.tmpdir, gw, conf_file), "w") |
---|
| 1418 | print >>gwconfig, "Active: %s" % active |
---|
| 1419 | print >>gwconfig, "TunnelCfg: %s" % tunnel_cfg |
---|
| 1420 | if tunnel_iface: |
---|
| 1421 | print >>gwconfig, "Interface: %s" % tunnel_iface |
---|
| 1422 | print >>gwconfig, "BossName: %s" % boss |
---|
| 1423 | print >>gwconfig, "FsName: %s" % fs |
---|
| 1424 | print >>gwconfig, "EventServerName: %s" % event_server |
---|
| 1425 | print >>gwconfig, "RemoteEventServerName: %s" % remote_event_server |
---|
| 1426 | print >>gwconfig, "SeerControl: %s" % seer_control |
---|
| 1427 | print >>gwconfig, "Type: %s" % type |
---|
| 1428 | print >>gwconfig, "RemoteScriptDir: %s" % remote_script_dir |
---|
| 1429 | print >>gwconfig, "EventRepeater: %s/fed_evrepeater" % \ |
---|
| 1430 | local_script_dir |
---|
| 1431 | print >>gwconfig, "RemoteExperiment: %s/%s" % (dproject, eid) |
---|
| 1432 | print >>gwconfig, "LocalExperiment: %s/%s" % (sproject, eid) |
---|
| 1433 | print >>gwconfig, "RemoteConfigFile: %s/%s" % \ |
---|
| 1434 | (remote_conf_dir, remote_conf_file) |
---|
| 1435 | print >>gwconfig, "Peer: %s%s" % (desthost, ddomain) |
---|
| 1436 | print >>gwconfig, "Pubkeys: %s/%s" % (local_key_dir, pubkey) |
---|
| 1437 | print >>gwconfig, "Privkeys: %s/%s" % (local_key_dir, privkey) |
---|
| 1438 | gwconfig.close() |
---|
| 1439 | |
---|
| 1440 | return active == "true" |
---|
| 1441 | |
---|
| 1442 | def __call__(self, line, allocated, tbparams): |
---|
| 1443 | # Process gateways |
---|
| 1444 | if not self.current_gateways: |
---|
| 1445 | m = self.begin_gateways.match(line) |
---|
| 1446 | if m: |
---|
| 1447 | self.current_gateways = m.group(1) |
---|
| 1448 | if allocated.has_key(self.current_gateways): |
---|
| 1449 | # This test should always succeed |
---|
| 1450 | tb_dir = "%s/%s" % (self.tmpdir, self.current_gateways) |
---|
| 1451 | if not os.path.exists(tb_dir): |
---|
| 1452 | try: |
---|
| 1453 | os.mkdir(tb_dir) |
---|
| 1454 | except IOError: |
---|
| 1455 | raise service_error(service_error.internal, |
---|
| 1456 | "Cannot create %s" % tb_dir) |
---|
| 1457 | else: |
---|
| 1458 | # XXX |
---|
| 1459 | self.log.error("[gateways]: Ignoring gateways for " + \ |
---|
| 1460 | "unknown testbed %s" % self.current_gateways) |
---|
| 1461 | self.current_gateways = None |
---|
| 1462 | return True |
---|
| 1463 | else: |
---|
| 1464 | return False |
---|
| 1465 | else: |
---|
| 1466 | m = self.end_gateways.match(line) |
---|
| 1467 | if m : |
---|
| 1468 | if m.group(1) != self.current_gateways: |
---|
| 1469 | raise service_error(service_error.internal, |
---|
| 1470 | "Mismatched gateway markers!?") |
---|
| 1471 | if self.control_gateway: |
---|
| 1472 | try: |
---|
| 1473 | cc = open("%s/%s/client.conf" % |
---|
| 1474 | (self.tmpdir, self.current_gateways), 'w') |
---|
| 1475 | print >>cc, "ControlGateway: %s" % \ |
---|
| 1476 | self.control_gateway |
---|
| 1477 | if tbparams[self.master].has_key('smbshare'): |
---|
| 1478 | print >>cc, "SMBSHare: %s" % \ |
---|
| 1479 | tbparams[self.master]['smbshare'] |
---|
| 1480 | print >>cc, "ProjectUser: %s" % \ |
---|
| 1481 | tbparams[self.master]['user'] |
---|
| 1482 | print >>cc, "ProjectName: %s" % \ |
---|
| 1483 | tbparams[self.master]['project'] |
---|
| 1484 | print >>cc, "ExperimentID: %s/%s" % \ |
---|
| 1485 | ( tbparams[self.master]['project'], \ |
---|
| 1486 | self.eid ) |
---|
| 1487 | cc.close() |
---|
| 1488 | except IOError: |
---|
| 1489 | raise service_error(service_error.internal, |
---|
| 1490 | "Error creating client config") |
---|
| 1491 | # XXX: This seer specific file should disappear |
---|
| 1492 | try: |
---|
| 1493 | cc = open("%s/%s/seer.conf" % |
---|
| 1494 | (self.tmpdir, self.current_gateways), |
---|
| 1495 | 'w') |
---|
| 1496 | if self.current_gateways != self.master: |
---|
| 1497 | print >>cc, "ControlNode: %s" % \ |
---|
| 1498 | self.control_gateway |
---|
| 1499 | print >>cc, "ExperimentID: %s/%s" % \ |
---|
| 1500 | ( tbparams[self.master]['project'], \ |
---|
| 1501 | self.eid ) |
---|
| 1502 | cc.close() |
---|
| 1503 | except IOError: |
---|
| 1504 | raise service_error(service_error.internal, |
---|
| 1505 | "Error creating seer config") |
---|
| 1506 | else: |
---|
| 1507 | debug.error("[gateways]: No control gateway for %s" %\ |
---|
| 1508 | self.current_gateways) |
---|
| 1509 | self.current_gateways = None |
---|
| 1510 | else: |
---|
| 1511 | dtb, myname, desthost, type = line.split(" ") |
---|
| 1512 | |
---|
| 1513 | if type == "control" or type == "both": |
---|
| 1514 | self.control_gateway = "%s.%s.%s%s" % (myname, |
---|
| 1515 | self.eid, |
---|
| 1516 | tbparams[self.current_gateways]['project'], |
---|
| 1517 | tbparams[self.current_gateways]['domain']) |
---|
| 1518 | try: |
---|
| 1519 | active = self.gateway_conf_file(self.current_gateways, |
---|
| 1520 | self.master, self.eid, self.gw_pubkey_base, |
---|
| 1521 | self.gw_secretkey_base, |
---|
| 1522 | self.active_end, tbparams, dtb, myname, |
---|
| 1523 | desthost, type) |
---|
| 1524 | except IOError, e: |
---|
| 1525 | raise service_error(service_error.internal, |
---|
| 1526 | "Failed to write config file for %s" % \ |
---|
| 1527 | self.current_gateway) |
---|
| 1528 | |
---|
| 1529 | gw_pubkey = "%s/keys/%s" % \ |
---|
| 1530 | (self.tmpdir, self.gw_pubkey_base) |
---|
| 1531 | gw_secretkey = "%s/keys/%s" % \ |
---|
| 1532 | (self.tmpdir, self.gw_secretkey_base) |
---|
| 1533 | |
---|
| 1534 | pkfile = "%s/%s/%s" % \ |
---|
| 1535 | ( self.tmpdir, self.current_gateways, |
---|
| 1536 | self.gw_pubkey_base) |
---|
| 1537 | skfile = "%s/%s/%s" % \ |
---|
| 1538 | ( self.tmpdir, self.current_gateways, |
---|
| 1539 | self.gw_secretkey_base) |
---|
| 1540 | |
---|
| 1541 | if not os.path.exists(pkfile): |
---|
| 1542 | try: |
---|
| 1543 | self.copy_file(gw_pubkey, pkfile) |
---|
| 1544 | except IOError: |
---|
| 1545 | service_error(service_error.internal, |
---|
| 1546 | "Failed to copy pubkey file") |
---|
| 1547 | |
---|
| 1548 | if active and not os.path.exists(skfile): |
---|
| 1549 | try: |
---|
| 1550 | self.copy_file(gw_secretkey, skfile) |
---|
| 1551 | except IOError: |
---|
| 1552 | service_error(service_error.internal, |
---|
| 1553 | "Failed to copy secretkey file") |
---|
| 1554 | return True |
---|
[6679c122] | 1555 | |
---|
| 1556 | class shunt_to_file: |
---|
[866c983] | 1557 | """ |
---|
| 1558 | Simple class to write data between two regexps to a file. |
---|
| 1559 | """ |
---|
| 1560 | def __init__(self, begin, end, filename): |
---|
| 1561 | """ |
---|
| 1562 | Begin shunting on a match of begin, stop on end, send data to |
---|
| 1563 | filename. |
---|
| 1564 | """ |
---|
| 1565 | self.begin = re.compile(begin) |
---|
| 1566 | self.end = re.compile(end) |
---|
| 1567 | self.in_shunt = False |
---|
| 1568 | self.file = None |
---|
| 1569 | self.filename = filename |
---|
| 1570 | |
---|
| 1571 | def __call__(self, line): |
---|
| 1572 | """ |
---|
| 1573 | Call this on each line in the input that may be shunted. |
---|
| 1574 | """ |
---|
| 1575 | if not self.in_shunt: |
---|
| 1576 | if self.begin.match(line): |
---|
| 1577 | self.in_shunt = True |
---|
| 1578 | try: |
---|
| 1579 | self.file = open(self.filename, "w") |
---|
| 1580 | except: |
---|
| 1581 | self.file = None |
---|
| 1582 | raise |
---|
| 1583 | return True |
---|
| 1584 | else: |
---|
| 1585 | return False |
---|
| 1586 | else: |
---|
| 1587 | if self.end.match(line): |
---|
| 1588 | if self.file: |
---|
| 1589 | self.file.close() |
---|
| 1590 | self.file = None |
---|
| 1591 | self.in_shunt = False |
---|
| 1592 | else: |
---|
| 1593 | if self.file: |
---|
| 1594 | print >>self.file, line |
---|
| 1595 | return True |
---|
[6679c122] | 1596 | |
---|
| 1597 | class shunt_to_list: |
---|
[866c983] | 1598 | """ |
---|
| 1599 | Same interface as shunt_to_file. Data collected in self.list, one list |
---|
| 1600 | element per line. |
---|
| 1601 | """ |
---|
| 1602 | def __init__(self, begin, end): |
---|
| 1603 | self.begin = re.compile(begin) |
---|
| 1604 | self.end = re.compile(end) |
---|
| 1605 | self.in_shunt = False |
---|
| 1606 | self.list = [ ] |
---|
| 1607 | |
---|
| 1608 | def __call__(self, line): |
---|
| 1609 | if not self.in_shunt: |
---|
| 1610 | if self.begin.match(line): |
---|
| 1611 | self.in_shunt = True |
---|
| 1612 | return True |
---|
| 1613 | else: |
---|
| 1614 | return False |
---|
| 1615 | else: |
---|
| 1616 | if self.end.match(line): |
---|
| 1617 | self.in_shunt = False |
---|
| 1618 | else: |
---|
| 1619 | self.list.append(line) |
---|
| 1620 | return True |
---|
[6679c122] | 1621 | |
---|
[0d830de] | 1622 | class shunt_to_string: |
---|
[866c983] | 1623 | """ |
---|
| 1624 | Same interface as shunt_to_file. Data collected in self.str, all in |
---|
| 1625 | one string. |
---|
| 1626 | """ |
---|
| 1627 | def __init__(self, begin, end): |
---|
| 1628 | self.begin = re.compile(begin) |
---|
| 1629 | self.end = re.compile(end) |
---|
| 1630 | self.in_shunt = False |
---|
| 1631 | self.str = "" |
---|
| 1632 | |
---|
| 1633 | def __call__(self, line): |
---|
| 1634 | if not self.in_shunt: |
---|
| 1635 | if self.begin.match(line): |
---|
| 1636 | self.in_shunt = True |
---|
| 1637 | return True |
---|
| 1638 | else: |
---|
| 1639 | return False |
---|
| 1640 | else: |
---|
| 1641 | if self.end.match(line): |
---|
| 1642 | self.in_shunt = False |
---|
| 1643 | else: |
---|
| 1644 | self.str += line |
---|
| 1645 | return True |
---|
[0d830de] | 1646 | |
---|
[6679c122] | 1647 | def create_experiment(self, req, fid): |
---|
[866c983] | 1648 | """ |
---|
| 1649 | The external interface to experiment creation called from the |
---|
| 1650 | dispatcher. |
---|
| 1651 | |
---|
| 1652 | Creates a working directory, splits the incoming description using the |
---|
| 1653 | splitter script and parses out the avrious subsections using the |
---|
| 1654 | lcasses above. Once each sub-experiment is created, use pooled threads |
---|
| 1655 | to instantiate them and start it all up. |
---|
| 1656 | """ |
---|
| 1657 | |
---|
| 1658 | if not self.auth.check_attribute(fid, 'create'): |
---|
| 1659 | raise service_error(service_error.access, "Create access denied") |
---|
| 1660 | |
---|
| 1661 | try: |
---|
| 1662 | tmpdir = tempfile.mkdtemp(prefix="split-") |
---|
| 1663 | except IOError: |
---|
| 1664 | raise service_error(service_error.internal, "Cannot create tmp dir") |
---|
| 1665 | |
---|
| 1666 | gw_pubkey_base = "fed.%s.pub" % self.ssh_type |
---|
| 1667 | gw_secretkey_base = "fed.%s" % self.ssh_type |
---|
| 1668 | gw_pubkey = tmpdir + "/keys/" + gw_pubkey_base |
---|
| 1669 | gw_secretkey = tmpdir + "/keys/" + gw_secretkey_base |
---|
| 1670 | tclfile = tmpdir + "/experiment.tcl" |
---|
| 1671 | tbparams = { } |
---|
| 1672 | try: |
---|
| 1673 | access_user = self.accessdb[fid] |
---|
| 1674 | except KeyError: |
---|
| 1675 | raise service_error(service_error.internal, |
---|
| 1676 | "Access map and authorizer out of sync in " + \ |
---|
| 1677 | "create_experiment for fedid %s" % fid) |
---|
| 1678 | |
---|
| 1679 | pid = "dummy" |
---|
| 1680 | gid = "dummy" |
---|
| 1681 | # XXX |
---|
| 1682 | fail_soft = False |
---|
| 1683 | |
---|
| 1684 | try: |
---|
| 1685 | os.mkdir(tmpdir+"/keys") |
---|
| 1686 | except OSError: |
---|
| 1687 | raise service_error(service_error.internal, |
---|
| 1688 | "Can't make temporary dir") |
---|
| 1689 | |
---|
| 1690 | req = req.get('CreateRequestBody', None) |
---|
| 1691 | if not req: |
---|
| 1692 | raise service_error(service_error.req, |
---|
| 1693 | "Bad request format (no CreateRequestBody)") |
---|
| 1694 | # The tcl parser needs to read a file so put the content into that file |
---|
| 1695 | descr=req.get('experimentdescription', None) |
---|
| 1696 | if descr: |
---|
| 1697 | file_content=descr.get('ns2description', None) |
---|
| 1698 | if file_content: |
---|
| 1699 | try: |
---|
| 1700 | f = open(tclfile, 'w') |
---|
| 1701 | f.write(file_content) |
---|
| 1702 | f.close() |
---|
| 1703 | except IOError: |
---|
| 1704 | raise service_error(service_error.internal, |
---|
| 1705 | "Cannot write temp experiment description") |
---|
| 1706 | else: |
---|
| 1707 | raise service_error(service_error.req, |
---|
| 1708 | "Only ns2descriptions supported") |
---|
| 1709 | else: |
---|
| 1710 | raise service_error(service_error.req, "No experiment description") |
---|
| 1711 | |
---|
| 1712 | if req.has_key('experimentID') and \ |
---|
| 1713 | req['experimentID'].has_key('localname'): |
---|
| 1714 | eid = req['experimentID']['localname'] |
---|
| 1715 | self.state_lock.acquire() |
---|
| 1716 | while (self.state.has_key(eid)): |
---|
| 1717 | eid += random.choice(string.ascii_letters) |
---|
| 1718 | # To avoid another thread picking this localname |
---|
| 1719 | self.state[eid] = "placeholder" |
---|
| 1720 | self.state_lock.release() |
---|
| 1721 | else: |
---|
| 1722 | eid = self.exp_stem |
---|
| 1723 | for i in range(0,5): |
---|
| 1724 | eid += random.choice(string.ascii_letters) |
---|
| 1725 | self.state_lock.acquire() |
---|
| 1726 | while (self.state.has_key(eid)): |
---|
| 1727 | eid = self.exp_stem |
---|
| 1728 | for i in range(0,5): |
---|
| 1729 | eid += random.choice(string.ascii_letters) |
---|
| 1730 | # To avoid another thread picking this localname |
---|
| 1731 | self.state[eid] = "placeholder" |
---|
| 1732 | self.state_lock.release() |
---|
| 1733 | |
---|
| 1734 | try: |
---|
| 1735 | # This catches exceptions to clear the placeholder if necessary |
---|
| 1736 | try: |
---|
| 1737 | self.generate_ssh_keys(gw_secretkey, self.ssh_type) |
---|
| 1738 | except ValueError: |
---|
| 1739 | raise service_error(service_error.server_config, |
---|
| 1740 | "Bad key type (%s)" % self.ssh_type) |
---|
| 1741 | |
---|
| 1742 | user = req.get('user', None) |
---|
| 1743 | if user == None: |
---|
| 1744 | raise service_error(service_error.req, "No user") |
---|
| 1745 | |
---|
| 1746 | master = req.get('master', None) |
---|
| 1747 | if not master: |
---|
| 1748 | raise service_error(service_error.req, |
---|
| 1749 | "No master testbed label") |
---|
| 1750 | export_project = req.get('exportProject', None) |
---|
| 1751 | if not export_project: |
---|
| 1752 | raise service_error(service_error.req, "No export project") |
---|
| 1753 | |
---|
| 1754 | if self.splitter_url: |
---|
| 1755 | self.log.debug("Calling remote splitter at %s" % \ |
---|
| 1756 | self.splitter_url) |
---|
| 1757 | split_data = self.remote_splitter(self.splitter_url, |
---|
| 1758 | file_content, master) |
---|
| 1759 | else: |
---|
| 1760 | tclcmd = [self.tclsh, self.tcl_splitter, '-s', '-x', |
---|
| 1761 | str(self.muxmax), '-m', master] |
---|
| 1762 | |
---|
| 1763 | if self.fedkit: |
---|
| 1764 | tclcmd.append('-k') |
---|
| 1765 | |
---|
| 1766 | if self.gatewaykit: |
---|
| 1767 | tclcmd.append('-K') |
---|
| 1768 | |
---|
| 1769 | tclcmd.extend([pid, gid, eid, tclfile]) |
---|
| 1770 | |
---|
| 1771 | self.log.debug("running local splitter %s", " ".join(tclcmd)) |
---|
| 1772 | tclparser = Popen(tclcmd, stdout=PIPE) |
---|
| 1773 | split_data = tclparser.stdout |
---|
| 1774 | |
---|
| 1775 | allocated = { } # Testbeds we can access |
---|
| 1776 | started = { } # Testbeds where a sub-experiment started |
---|
[4b362df] | 1777 | # successfully |
---|
[866c983] | 1778 | |
---|
| 1779 | # Objects to parse the splitter output (defined above) |
---|
| 1780 | parse_current_testbed = self.current_testbed(eid, tmpdir, |
---|
| 1781 | self.fedkit, self.gatewaykit) |
---|
| 1782 | parse_allbeds = self.allbeds(self.get_access) |
---|
| 1783 | parse_gateways = self.gateways(eid, master, tmpdir, |
---|
| 1784 | gw_pubkey_base, gw_secretkey_base, self.copy_file, |
---|
| 1785 | self.fedkit) |
---|
| 1786 | parse_vtopo = self.shunt_to_string("^#\s+Begin\s+Vtopo", |
---|
| 1787 | "^#\s+End\s+Vtopo") |
---|
| 1788 | parse_hostnames = self.shunt_to_file("^#\s+Begin\s+hostnames", |
---|
| 1789 | "^#\s+End\s+hostnames", tmpdir + "/hosts") |
---|
| 1790 | parse_tarfiles = self.shunt_to_list("^#\s+Begin\s+tarfiles", |
---|
| 1791 | "^#\s+End\s+tarfiles") |
---|
| 1792 | parse_rpms = self.shunt_to_list("^#\s+Begin\s+rpms", |
---|
| 1793 | "^#\s+End\s+rpms") |
---|
| 1794 | |
---|
| 1795 | # Working on the split data |
---|
| 1796 | for line in split_data: |
---|
| 1797 | line = line.rstrip() |
---|
| 1798 | if parse_current_testbed(line, master, allocated, tbparams): |
---|
| 1799 | continue |
---|
| 1800 | elif parse_allbeds(line, user, tbparams, master, export_project, |
---|
| 1801 | access_user): |
---|
| 1802 | continue |
---|
| 1803 | elif parse_gateways(line, allocated, tbparams): |
---|
| 1804 | continue |
---|
| 1805 | elif parse_vtopo(line): |
---|
| 1806 | continue |
---|
| 1807 | elif parse_hostnames(line): |
---|
| 1808 | continue |
---|
| 1809 | elif parse_tarfiles(line): |
---|
| 1810 | continue |
---|
| 1811 | elif parse_rpms(line): |
---|
| 1812 | continue |
---|
| 1813 | else: |
---|
| 1814 | raise service_error(service_error.internal, |
---|
| 1815 | "Bad tcl parse? %s" % line) |
---|
| 1816 | # Virtual topology and visualization |
---|
| 1817 | vtopo = self.gentopo(parse_vtopo.str) |
---|
| 1818 | if not vtopo: |
---|
| 1819 | raise service_error(service_error.internal, |
---|
| 1820 | "Failed to generate virtual topology") |
---|
| 1821 | |
---|
| 1822 | vis = self.genviz(vtopo) |
---|
| 1823 | if not vis: |
---|
| 1824 | raise service_error(service_error.internal, |
---|
| 1825 | "Failed to generate visualization") |
---|
| 1826 | |
---|
| 1827 | # save federant information |
---|
| 1828 | for k in allocated.keys(): |
---|
| 1829 | tbparams[k]['federant'] = {\ |
---|
| 1830 | 'name': [ { 'localname' : eid} ],\ |
---|
| 1831 | 'emulab': tbparams[k]['emulab'],\ |
---|
| 1832 | 'allocID' : tbparams[k]['allocID'],\ |
---|
| 1833 | 'master' : k == master,\ |
---|
| 1834 | } |
---|
| 1835 | |
---|
| 1836 | |
---|
| 1837 | # Copy tarfiles and rpms needed at remote sites into a staging area |
---|
| 1838 | try: |
---|
| 1839 | if self.fedkit: |
---|
| 1840 | for t in self.fedkit: |
---|
| 1841 | parse_tarfiles.list.append(t[1]) |
---|
| 1842 | if self.gatewaykit: |
---|
| 1843 | for t in self.gatewaykit: |
---|
| 1844 | parse_tarfiles.list.append(t[1]) |
---|
| 1845 | for t in parse_tarfiles.list: |
---|
| 1846 | if not os.path.exists("%s/tarfiles" % tmpdir): |
---|
| 1847 | os.mkdir("%s/tarfiles" % tmpdir) |
---|
| 1848 | self.copy_file(t, "%s/tarfiles/%s" % \ |
---|
| 1849 | (tmpdir, os.path.basename(t))) |
---|
| 1850 | for r in parse_rpms.list: |
---|
| 1851 | if not os.path.exists("%s/rpms" % tmpdir): |
---|
| 1852 | os.mkdir("%s/rpms" % tmpdir) |
---|
| 1853 | self.copy_file(r, "%s/rpms/%s" % \ |
---|
| 1854 | (tmpdir, os.path.basename(r))) |
---|
| 1855 | # A null experiment file in case we need to create a remote |
---|
| 1856 | # experiment from scratch |
---|
| 1857 | f = open("%s/null.tcl" % tmpdir, "w") |
---|
| 1858 | print >>f, """ |
---|
[a0c12a6] | 1859 | set ns [new Simulator] |
---|
| 1860 | source tb_compat.tcl |
---|
| 1861 | |
---|
| 1862 | set a [$ns node] |
---|
| 1863 | |
---|
| 1864 | $ns rtproto Session |
---|
| 1865 | $ns run |
---|
| 1866 | """ |
---|
[866c983] | 1867 | f.close() |
---|
| 1868 | |
---|
| 1869 | except IOError, e: |
---|
| 1870 | raise service_error(service_error.internal, |
---|
| 1871 | "Cannot stage tarfile/rpm: %s" % e.strerror) |
---|
| 1872 | |
---|
| 1873 | except service_error, e: |
---|
| 1874 | # If something goes wrong in the parse (usually an access error) |
---|
| 1875 | # clear the placeholder state. From here on out the code delays |
---|
| 1876 | # exceptions. |
---|
| 1877 | self.state_lock.acquire() |
---|
| 1878 | del self.state[eid] |
---|
| 1879 | self.state_lock.release() |
---|
| 1880 | raise e |
---|
| 1881 | |
---|
| 1882 | thread_pool = self.thread_pool(self.nthreads) |
---|
| 1883 | threads = [ ] |
---|
| 1884 | |
---|
| 1885 | for tb in [ k for k in allocated.keys() if k != master]: |
---|
| 1886 | # Create and start a thread to start the segment, and save it to |
---|
| 1887 | # get the return value later |
---|
| 1888 | thread_pool.wait_for_slot() |
---|
[4b362df] | 1889 | t = self.pooled_thread(\ |
---|
| 1890 | target=self.start_segment(log=self.log, |
---|
| 1891 | keyfile=self.ssh_privkey_file, debug=self.debug), |
---|
[866c983] | 1892 | args=(tb, eid, tbparams, tmpdir, 0), name=tb, |
---|
| 1893 | pdata=thread_pool, trace_file=self.trace_file) |
---|
| 1894 | threads.append(t) |
---|
| 1895 | t.start() |
---|
| 1896 | |
---|
| 1897 | # Wait until all finish |
---|
| 1898 | thread_pool.wait_for_all_done() |
---|
| 1899 | |
---|
| 1900 | # If none failed, start the master |
---|
| 1901 | failed = [ t.getName() for t in threads if not t.rv ] |
---|
| 1902 | |
---|
| 1903 | if len(failed) == 0: |
---|
[4b362df] | 1904 | starter = self.start_segment(log=self.log, |
---|
| 1905 | keyfile=self.ssh_privkey_file, debug=self.debug) |
---|
| 1906 | if not starter(master, eid, tbparams, tmpdir): |
---|
[866c983] | 1907 | failed.append(master) |
---|
| 1908 | |
---|
| 1909 | succeeded = [tb for tb in allocated.keys() if tb not in failed] |
---|
| 1910 | # If one failed clean up, unless fail_soft is set |
---|
| 1911 | if failed: |
---|
| 1912 | if not fail_soft: |
---|
| 1913 | thread_pool.clear() |
---|
| 1914 | for tb in succeeded: |
---|
| 1915 | # Create and start a thread to stop the segment |
---|
| 1916 | thread_pool.wait_for_slot() |
---|
[4b362df] | 1917 | t = self.pooled_thread(\ |
---|
| 1918 | target=self.stop_segment(log=self.log, |
---|
| 1919 | keyfile=self.ssh_privkey_file, |
---|
| 1920 | debug=self.debug), |
---|
[866c983] | 1921 | args=(tb, eid, tbparams), name=tb, |
---|
| 1922 | pdata=thread_pool, trace_file=self.trace_file) |
---|
| 1923 | t.start() |
---|
| 1924 | # Wait until all finish |
---|
| 1925 | thread_pool.wait_for_all_done() |
---|
| 1926 | |
---|
| 1927 | # release the allocations |
---|
| 1928 | for tb in tbparams.keys(): |
---|
| 1929 | self.release_access(tb, tbparams[tb]['allocID']) |
---|
| 1930 | # Remove the placeholder |
---|
| 1931 | self.state_lock.acquire() |
---|
| 1932 | del self.state[eid] |
---|
| 1933 | self.state_lock.release() |
---|
| 1934 | |
---|
| 1935 | raise service_error(service_error.federant, |
---|
| 1936 | "Swap in failed on %s" % ",".join(failed)) |
---|
| 1937 | else: |
---|
| 1938 | self.log.info("[start_segment]: Experiment %s started" % eid) |
---|
| 1939 | |
---|
| 1940 | # Generate an ID for the experiment (slice) and a certificate that the |
---|
| 1941 | # allocator can use to prove they own it. We'll ship it back through |
---|
| 1942 | # the encrypted connection. |
---|
| 1943 | (expid, expcert) = generate_fedid("test", dir=tmpdir, log=self.log) |
---|
| 1944 | |
---|
| 1945 | self.log.debug("[start_experiment]: removing %s" % tmpdir) |
---|
| 1946 | |
---|
| 1947 | # Walk up tmpdir, deleting as we go |
---|
| 1948 | for path, dirs, files in os.walk(tmpdir, topdown=False): |
---|
| 1949 | for f in files: |
---|
| 1950 | os.remove(os.path.join(path, f)) |
---|
| 1951 | for d in dirs: |
---|
| 1952 | os.rmdir(os.path.join(path, d)) |
---|
| 1953 | os.rmdir(tmpdir) |
---|
| 1954 | |
---|
| 1955 | # The deepcopy prevents the allocation ID and other binaries from being |
---|
| 1956 | # translated into other formats |
---|
| 1957 | resp = { 'federant' : [ copy.deepcopy(tbparams[tb]['federant']) \ |
---|
| 1958 | for tb in tbparams.keys() \ |
---|
| 1959 | if tbparams[tb].has_key('federant') ],\ |
---|
| 1960 | 'vtopo': vtopo,\ |
---|
| 1961 | 'vis' : vis, |
---|
| 1962 | 'experimentID' : [\ |
---|
| 1963 | { 'fedid': copy.copy(expid) }, \ |
---|
| 1964 | { 'localname': eid },\ |
---|
| 1965 | ],\ |
---|
| 1966 | 'experimentAccess': { 'X509' : expcert },\ |
---|
| 1967 | } |
---|
| 1968 | # remove the allocationID info from each federant |
---|
| 1969 | for f in resp['federant']: |
---|
| 1970 | if f.has_key('allocID'): del f['allocID'] |
---|
| 1971 | |
---|
| 1972 | # Insert the experiment into our state and update the disk copy |
---|
| 1973 | self.state_lock.acquire() |
---|
| 1974 | self.state[expid] = { 'federant' : [ tbparams[tb]['federant'] \ |
---|
| 1975 | for tb in tbparams.keys() \ |
---|
| 1976 | if tbparams[tb].has_key('federant') ],\ |
---|
| 1977 | 'vtopo': vtopo,\ |
---|
| 1978 | 'vis' : vis, |
---|
| 1979 | 'owner': fid, |
---|
| 1980 | 'experimentID' : [\ |
---|
| 1981 | { 'fedid': expid }, { 'localname': eid },\ |
---|
| 1982 | ],\ |
---|
| 1983 | } |
---|
| 1984 | self.state[eid] = self.state[expid] |
---|
| 1985 | if self.state_filename: self.write_state() |
---|
| 1986 | self.state_lock.release() |
---|
| 1987 | |
---|
| 1988 | self.auth.set_attribute(fid, expid) |
---|
| 1989 | self.auth.set_attribute(expid, expid) |
---|
| 1990 | |
---|
| 1991 | if not failed: |
---|
| 1992 | return resp |
---|
| 1993 | else: |
---|
| 1994 | raise service_error(service_error.partial, \ |
---|
| 1995 | "Partial swap in on %s" % ",".join(succeeded)) |
---|
[a97394b] | 1996 | |
---|
[4064742] | 1997 | def check_experiment_access(self, fid, key): |
---|
[866c983] | 1998 | """ |
---|
| 1999 | Confirm that the fid has access to the experiment. Though a request |
---|
| 2000 | may be made in terms of a local name, the access attribute is always |
---|
| 2001 | the experiment's fedid. |
---|
| 2002 | """ |
---|
| 2003 | if not isinstance(key, fedid): |
---|
| 2004 | self.state_lock.acquire() |
---|
| 2005 | if self.state.has_key(key): |
---|
| 2006 | if isinstance(self.state[key], dict): |
---|
| 2007 | try: |
---|
| 2008 | kl = [ f['fedid'] for f in \ |
---|
| 2009 | self.state[key]['experimentID']\ |
---|
| 2010 | if f.has_key('fedid') ] |
---|
| 2011 | except KeyError: |
---|
| 2012 | self.state_lock.release() |
---|
| 2013 | raise service_error(service_error.internal, |
---|
| 2014 | "No fedid for experiment %s when checking " +\ |
---|
| 2015 | "access(!?)" % key) |
---|
| 2016 | if len(kl) == 1: |
---|
| 2017 | key = kl[0] |
---|
| 2018 | else: |
---|
| 2019 | self.state_lock.release() |
---|
| 2020 | raise service_error(service_error.internal, |
---|
| 2021 | "multiple fedids for experiment %s when " +\ |
---|
| 2022 | "checking access(!?)" % key) |
---|
| 2023 | elif isinstance(self.state[key], str): |
---|
| 2024 | self.state_lock.release() |
---|
| 2025 | raise service_error(service_error.internal, |
---|
| 2026 | ("experiment %s is placeholder. " +\ |
---|
| 2027 | "Creation in progress or aborted oddly") \ |
---|
| 2028 | % key) |
---|
| 2029 | else: |
---|
| 2030 | self.state_lock.release() |
---|
| 2031 | raise service_error(service_error.internal, |
---|
| 2032 | "Unexpected state for %s" % key) |
---|
| 2033 | |
---|
| 2034 | else: |
---|
| 2035 | self.state_lock.release() |
---|
| 2036 | raise service_error(service_error.access, "Access Denied") |
---|
| 2037 | self.state_lock.release() |
---|
| 2038 | |
---|
| 2039 | if self.auth.check_attribute(fid, key): |
---|
| 2040 | return True |
---|
| 2041 | else: |
---|
| 2042 | raise service_error(service_error.access, "Access Denied") |
---|
[4064742] | 2043 | |
---|
| 2044 | |
---|
[987aaa1] | 2045 | |
---|
| 2046 | def get_vtopo(self, req, fid): |
---|
[866c983] | 2047 | """ |
---|
| 2048 | Return the stored virtual topology for this experiment |
---|
| 2049 | """ |
---|
| 2050 | rv = None |
---|
| 2051 | |
---|
| 2052 | req = req.get('VtopoRequestBody', None) |
---|
| 2053 | if not req: |
---|
| 2054 | raise service_error(service_error.req, |
---|
| 2055 | "Bad request format (no VtopoRequestBody)") |
---|
| 2056 | exp = req.get('experiment', None) |
---|
| 2057 | if exp: |
---|
| 2058 | if exp.has_key('fedid'): |
---|
| 2059 | key = exp['fedid'] |
---|
| 2060 | keytype = "fedid" |
---|
| 2061 | elif exp.has_key('localname'): |
---|
| 2062 | key = exp['localname'] |
---|
| 2063 | keytype = "localname" |
---|
| 2064 | else: |
---|
| 2065 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 2066 | else: |
---|
| 2067 | raise service_error(service_error.req, "No request?") |
---|
| 2068 | |
---|
| 2069 | self.check_experiment_access(fid, key) |
---|
| 2070 | |
---|
| 2071 | self.state_lock.acquire() |
---|
| 2072 | if self.state.has_key(key): |
---|
| 2073 | rv = { 'experiment' : {keytype: key },\ |
---|
| 2074 | 'vtopo': self.state[key]['vtopo'],\ |
---|
| 2075 | } |
---|
| 2076 | self.state_lock.release() |
---|
| 2077 | |
---|
| 2078 | if rv: return rv |
---|
| 2079 | else: raise service_error(service_error.req, "No such experiment") |
---|
[987aaa1] | 2080 | |
---|
| 2081 | def get_vis(self, req, fid): |
---|
[866c983] | 2082 | """ |
---|
| 2083 | Return the stored visualization for this experiment |
---|
| 2084 | """ |
---|
| 2085 | rv = None |
---|
| 2086 | |
---|
| 2087 | req = req.get('VisRequestBody', None) |
---|
| 2088 | if not req: |
---|
| 2089 | raise service_error(service_error.req, |
---|
| 2090 | "Bad request format (no VisRequestBody)") |
---|
| 2091 | exp = req.get('experiment', None) |
---|
| 2092 | if exp: |
---|
| 2093 | if exp.has_key('fedid'): |
---|
| 2094 | key = exp['fedid'] |
---|
| 2095 | keytype = "fedid" |
---|
| 2096 | elif exp.has_key('localname'): |
---|
| 2097 | key = exp['localname'] |
---|
| 2098 | keytype = "localname" |
---|
| 2099 | else: |
---|
| 2100 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 2101 | else: |
---|
| 2102 | raise service_error(service_error.req, "No request?") |
---|
| 2103 | |
---|
| 2104 | self.check_experiment_access(fid, key) |
---|
| 2105 | |
---|
| 2106 | self.state_lock.acquire() |
---|
| 2107 | if self.state.has_key(key): |
---|
| 2108 | rv = { 'experiment' : {keytype: key },\ |
---|
| 2109 | 'vis': self.state[key]['vis'],\ |
---|
| 2110 | } |
---|
| 2111 | self.state_lock.release() |
---|
| 2112 | |
---|
| 2113 | if rv: return rv |
---|
| 2114 | else: raise service_error(service_error.req, "No such experiment") |
---|
[987aaa1] | 2115 | |
---|
[c52c48d] | 2116 | def get_info(self, req, fid): |
---|
[866c983] | 2117 | """ |
---|
| 2118 | Return all the stored info about this experiment |
---|
| 2119 | """ |
---|
| 2120 | rv = None |
---|
| 2121 | |
---|
| 2122 | req = req.get('InfoRequestBody', None) |
---|
| 2123 | if not req: |
---|
| 2124 | raise service_error(service_error.req, |
---|
| 2125 | "Bad request format (no VisRequestBody)") |
---|
| 2126 | exp = req.get('experiment', None) |
---|
| 2127 | if exp: |
---|
| 2128 | if exp.has_key('fedid'): |
---|
| 2129 | key = exp['fedid'] |
---|
| 2130 | keytype = "fedid" |
---|
| 2131 | elif exp.has_key('localname'): |
---|
| 2132 | key = exp['localname'] |
---|
| 2133 | keytype = "localname" |
---|
| 2134 | else: |
---|
| 2135 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 2136 | else: |
---|
| 2137 | raise service_error(service_error.req, "No request?") |
---|
| 2138 | |
---|
| 2139 | self.check_experiment_access(fid, key) |
---|
| 2140 | |
---|
| 2141 | # The state may be massaged by the service function that called |
---|
| 2142 | # get_info (e.g., encoded for XMLRPC transport) so send a copy of the |
---|
| 2143 | # state. |
---|
| 2144 | self.state_lock.acquire() |
---|
| 2145 | if self.state.has_key(key): |
---|
| 2146 | rv = copy.deepcopy(self.state[key]) |
---|
| 2147 | self.state_lock.release() |
---|
| 2148 | # Remove the owner info |
---|
| 2149 | del rv['owner'] |
---|
| 2150 | # remove the allocationID info from each federant |
---|
| 2151 | for f in rv['federant']: |
---|
| 2152 | if f.has_key('allocID'): del f['allocID'] |
---|
| 2153 | |
---|
| 2154 | if rv: return rv |
---|
| 2155 | else: raise service_error(service_error.req, "No such experiment") |
---|
[7a8d667] | 2156 | |
---|
| 2157 | |
---|
| 2158 | def terminate_experiment(self, req, fid): |
---|
[866c983] | 2159 | """ |
---|
| 2160 | Swap this experiment out on the federants and delete the shared |
---|
| 2161 | information |
---|
| 2162 | """ |
---|
| 2163 | tbparams = { } |
---|
| 2164 | req = req.get('TerminateRequestBody', None) |
---|
| 2165 | if not req: |
---|
| 2166 | raise service_error(service_error.req, |
---|
| 2167 | "Bad request format (no TerminateRequestBody)") |
---|
| 2168 | exp = req.get('experiment', None) |
---|
| 2169 | if exp: |
---|
| 2170 | if exp.has_key('fedid'): |
---|
| 2171 | key = exp['fedid'] |
---|
| 2172 | keytype = "fedid" |
---|
| 2173 | elif exp.has_key('localname'): |
---|
| 2174 | key = exp['localname'] |
---|
| 2175 | keytype = "localname" |
---|
| 2176 | else: |
---|
| 2177 | raise service_error(service_error.req, "Unknown lookup type") |
---|
| 2178 | else: |
---|
| 2179 | raise service_error(service_error.req, "No request?") |
---|
| 2180 | |
---|
| 2181 | self.check_experiment_access(fid, key) |
---|
| 2182 | |
---|
| 2183 | self.state_lock.acquire() |
---|
| 2184 | fed_exp = self.state.get(key, None) |
---|
| 2185 | |
---|
| 2186 | if fed_exp: |
---|
| 2187 | # This branch of the conditional holds the lock to generate a |
---|
| 2188 | # consistent temporary tbparams variable to deallocate experiments. |
---|
| 2189 | # It releases the lock to do the deallocations and reacquires it to |
---|
| 2190 | # remove the experiment state when the termination is complete. |
---|
| 2191 | ids = [] |
---|
| 2192 | # experimentID is a list of dicts that are self-describing |
---|
| 2193 | # identifiers. This finds all the fedids and localnames - the |
---|
| 2194 | # keys of self.state - and puts them into ids. |
---|
| 2195 | for id in fed_exp.get('experimentID', []): |
---|
| 2196 | if id.has_key('fedid'): ids.append(id['fedid']) |
---|
| 2197 | if id.has_key('localname'): ids.append(id['localname']) |
---|
| 2198 | |
---|
| 2199 | # Construct enough of the tbparams to make the stop_segment calls |
---|
| 2200 | # work |
---|
| 2201 | for fed in fed_exp['federant']: |
---|
| 2202 | try: |
---|
| 2203 | for e in fed['name']: |
---|
| 2204 | eid = e.get('localname', None) |
---|
| 2205 | if eid: break |
---|
| 2206 | else: |
---|
| 2207 | continue |
---|
| 2208 | |
---|
| 2209 | p = fed['emulab']['project'] |
---|
| 2210 | |
---|
| 2211 | project = p['name']['localname'] |
---|
| 2212 | tb = p['testbed']['localname'] |
---|
| 2213 | user = p['user'][0]['userID']['localname'] |
---|
| 2214 | |
---|
| 2215 | domain = fed['emulab']['domain'] |
---|
| 2216 | host = fed['emulab']['ops'] |
---|
| 2217 | aid = fed['allocID'] |
---|
| 2218 | except KeyError, e: |
---|
| 2219 | continue |
---|
| 2220 | tbparams[tb] = {\ |
---|
| 2221 | 'user': user,\ |
---|
| 2222 | 'domain': domain,\ |
---|
| 2223 | 'project': project,\ |
---|
| 2224 | 'host': host,\ |
---|
| 2225 | 'eid': eid,\ |
---|
| 2226 | 'aid': aid,\ |
---|
| 2227 | } |
---|
| 2228 | self.state_lock.release() |
---|
| 2229 | |
---|
| 2230 | # Stop everyone. |
---|
| 2231 | thread_pool = self.thread_pool(self.nthreads) |
---|
| 2232 | for tb in tbparams.keys(): |
---|
| 2233 | # Create and start a thread to stop the segment |
---|
| 2234 | thread_pool.wait_for_slot() |
---|
| 2235 | t = self.pooled_thread(target=self.stop_segment, |
---|
| 2236 | args=(tb, tbparams[tb]['eid'], tbparams), name=tb, |
---|
| 2237 | pdata=thread_pool, trace_file=self.trace_file) |
---|
| 2238 | t.start() |
---|
| 2239 | # Wait for completions |
---|
| 2240 | thread_pool.wait_for_all_done() |
---|
| 2241 | |
---|
| 2242 | # release the allocations |
---|
| 2243 | for tb in tbparams.keys(): |
---|
| 2244 | self.release_access(tb, tbparams[tb]['aid']) |
---|
| 2245 | |
---|
| 2246 | # Remove the terminated experiment |
---|
| 2247 | self.state_lock.acquire() |
---|
| 2248 | for id in ids: |
---|
| 2249 | if self.state.has_key(id): del self.state[id] |
---|
| 2250 | |
---|
| 2251 | if self.state_filename: self.write_state() |
---|
| 2252 | self.state_lock.release() |
---|
| 2253 | |
---|
| 2254 | return { 'experiment': exp } |
---|
| 2255 | else: |
---|
| 2256 | # Don't forget to release the lock |
---|
| 2257 | self.state_lock.release() |
---|
| 2258 | raise service_error(service_error.req, "No saved state") |
---|