| 1 | #!/usr/local/bin/python |
|---|
| 2 | |
|---|
| 3 | import os,sys |
|---|
| 4 | |
|---|
| 5 | from ZSI import * |
|---|
| 6 | from M2Crypto import SSL |
|---|
| 7 | from M2Crypto.SSL.SSLServer import SSLServer |
|---|
| 8 | import M2Crypto.httpslib |
|---|
| 9 | |
|---|
| 10 | import xml.parsers.expat |
|---|
| 11 | |
|---|
| 12 | import re |
|---|
| 13 | import random |
|---|
| 14 | import string |
|---|
| 15 | import subprocess |
|---|
| 16 | import tempfile |
|---|
| 17 | import copy |
|---|
| 18 | import pickle |
|---|
| 19 | |
|---|
| 20 | import traceback |
|---|
| 21 | |
|---|
| 22 | from threading import * |
|---|
| 23 | |
|---|
| 24 | from subprocess import * |
|---|
| 25 | |
|---|
| 26 | from fedd_services import * |
|---|
| 27 | from fedd_internal_services import * |
|---|
| 28 | from fedd_util import * |
|---|
| 29 | import parse_detail |
|---|
| 30 | from service_error import * |
|---|
| 31 | |
|---|
| 32 | import logging |
|---|
| 33 | |
|---|
| 34 | class nullHandler(logging.Handler): |
|---|
| 35 | def emit(self, record): pass |
|---|
| 36 | |
|---|
| 37 | fl = logging.getLogger("fedd.experiment_control") |
|---|
| 38 | fl.addHandler(nullHandler()) |
|---|
| 39 | |
|---|
| 40 | class fedd_experiment_control_local: |
|---|
| 41 | """ |
|---|
| 42 | Control of experiments that this system can directly access. |
|---|
| 43 | |
|---|
| 44 | Includes experiment creation, termination and information dissemination. |
|---|
| 45 | Thred safe. |
|---|
| 46 | """ |
|---|
| 47 | |
|---|
| 48 | class thread_pool: |
|---|
| 49 | """ |
|---|
| 50 | A class to keep track of a set of threads all invoked for the same |
|---|
| 51 | task. Manages the mutual exclusion of the states. |
|---|
| 52 | """ |
|---|
| 53 | def __init__(self): |
|---|
| 54 | """ |
|---|
| 55 | Start a pool. |
|---|
| 56 | """ |
|---|
| 57 | self.changed = Condition() |
|---|
| 58 | self.started = 0 |
|---|
| 59 | self.terminated = 0 |
|---|
| 60 | |
|---|
| 61 | def acquire(self): |
|---|
| 62 | """ |
|---|
| 63 | Get the pool's lock. |
|---|
| 64 | """ |
|---|
| 65 | self.changed.acquire() |
|---|
| 66 | |
|---|
| 67 | def release(self): |
|---|
| 68 | """ |
|---|
| 69 | Release the pool's lock. |
|---|
| 70 | """ |
|---|
| 71 | self.changed.release() |
|---|
| 72 | |
|---|
| 73 | def wait(self, timeout = None): |
|---|
| 74 | """ |
|---|
| 75 | Wait for a pool thread to start or stop. |
|---|
| 76 | """ |
|---|
| 77 | self.changed.wait(timeout) |
|---|
| 78 | |
|---|
| 79 | def start(self): |
|---|
| 80 | """ |
|---|
| 81 | Called by a pool thread to report starting. |
|---|
| 82 | """ |
|---|
| 83 | self.changed.acquire() |
|---|
| 84 | self.started += 1 |
|---|
| 85 | self.changed.notifyAll() |
|---|
| 86 | self.changed.release() |
|---|
| 87 | |
|---|
| 88 | def terminate(self): |
|---|
| 89 | """ |
|---|
| 90 | Called by a pool thread to report finishing. |
|---|
| 91 | """ |
|---|
| 92 | self.changed.acquire() |
|---|
| 93 | self.terminated += 1 |
|---|
| 94 | self.changed.notifyAll() |
|---|
| 95 | self.changed.release() |
|---|
| 96 | |
|---|
| 97 | def clear(self): |
|---|
| 98 | """ |
|---|
| 99 | Clear all pool data. |
|---|
| 100 | """ |
|---|
| 101 | self.changed.acquire() |
|---|
| 102 | self.started = 0 |
|---|
| 103 | self.terminated =0 |
|---|
| 104 | self.changed.notifyAll() |
|---|
| 105 | self.changed.release() |
|---|
| 106 | |
|---|
| 107 | class pooled_thread(Thread): |
|---|
| 108 | """ |
|---|
| 109 | One of a set of threads dedicated to a specific task. Uses the |
|---|
| 110 | thread_pool class above for coordination. |
|---|
| 111 | """ |
|---|
| 112 | def __init__(self, group=None, target=None, name=None, args=(), |
|---|
| 113 | kwargs={}, pdata=None, trace_file=None): |
|---|
| 114 | Thread.__init__(self, group, target, name, args, kwargs) |
|---|
| 115 | self.rv = None # Return value of the ops in this thread |
|---|
| 116 | self.exception = None # Exception that terminated this thread |
|---|
| 117 | self.target=target # Target function to run on start() |
|---|
| 118 | self.args = args # Args to pass to target |
|---|
| 119 | self.kwargs = kwargs # Additional kw args |
|---|
| 120 | self.pdata = pdata # thread_pool for this class |
|---|
| 121 | # Logger for this thread |
|---|
| 122 | self.log = logging.getLogger("fedd.experiment_control") |
|---|
| 123 | |
|---|
| 124 | def run(self): |
|---|
| 125 | """ |
|---|
| 126 | Emulate Thread.run, except add pool data manipulation and error |
|---|
| 127 | logging. |
|---|
| 128 | """ |
|---|
| 129 | if self.pdata: |
|---|
| 130 | self.pdata.start() |
|---|
| 131 | |
|---|
| 132 | if self.target: |
|---|
| 133 | try: |
|---|
| 134 | self.rv = self.target(*self.args, **self.kwargs) |
|---|
| 135 | except service_error, s: |
|---|
| 136 | self.exception = s |
|---|
| 137 | self.log.error("Thread exception: %s %s" % \ |
|---|
| 138 | (s.code_string(), s.desc)) |
|---|
| 139 | except: |
|---|
| 140 | self.exception = sys.exc_info()[1] |
|---|
| 141 | self.log.error(("Unexpected thread exception: %s" +\ |
|---|
| 142 | "Trace %s") % (self.exception,\ |
|---|
| 143 | traceback.format_exc())) |
|---|
| 144 | if self.pdata: |
|---|
| 145 | self.pdata.terminate() |
|---|
| 146 | |
|---|
| 147 | def __init__(self, config=None): |
|---|
| 148 | """ |
|---|
| 149 | Intialize the various attributes, most from the config object |
|---|
| 150 | """ |
|---|
| 151 | self.thread_with_rv = fedd_experiment_control_local.pooled_thread |
|---|
| 152 | self.thread_pool = fedd_experiment_control_local.thread_pool |
|---|
| 153 | |
|---|
| 154 | self.cert_file = None |
|---|
| 155 | self.cert_pwd = None |
|---|
| 156 | self.trusted_certs = None |
|---|
| 157 | |
|---|
| 158 | # Walk through the various relevant certificat specifying config |
|---|
| 159 | # attributes until the local certificate attributes can be resolved. |
|---|
| 160 | # The walk is from most specific to most general specification. |
|---|
| 161 | for s in ("experiment_control", "globals"): |
|---|
| 162 | if config.has_section(s): |
|---|
| 163 | if config.has_option(s, "cert_file"): |
|---|
| 164 | if not self.cert_file: |
|---|
| 165 | self.cert_file = config.get(s, "cert_file") |
|---|
| 166 | self.cert_pwd = config.get(s, "cert_pwd") |
|---|
| 167 | |
|---|
| 168 | if config.has_option(s, "trusted_certs"): |
|---|
| 169 | if not self.trusted_certs: |
|---|
| 170 | self.trusted_certs = config.get(s, "trusted_certs") |
|---|
| 171 | |
|---|
| 172 | self.exp_stem = "fed-stem" |
|---|
| 173 | self.log = logging.getLogger("fedd.experiment_control") |
|---|
| 174 | self.muxmax = 2 |
|---|
| 175 | self.nthreads = 2 |
|---|
| 176 | self.randomize_experiments = False |
|---|
| 177 | |
|---|
| 178 | self.scp_exec = "/usr/bin/scp" |
|---|
| 179 | self.splitter = None |
|---|
| 180 | self.ssh_exec="/usr/bin/ssh" |
|---|
| 181 | self.ssh_keygen = "/usr/bin/ssh-keygen" |
|---|
| 182 | self.ssh_identity_file = None |
|---|
| 183 | |
|---|
| 184 | if config.has_section("experiment_control"): |
|---|
| 185 | self.debug = config.get("experiment_control", "create_debug") |
|---|
| 186 | self.state_filename = config.get("experiment_control", |
|---|
| 187 | "experiment_state_file") |
|---|
| 188 | self.splitter_url = config.get("experiment_control", "splitter_url") |
|---|
| 189 | self.fedkit = config.get("experiment_control", "fedkit") |
|---|
| 190 | else: |
|---|
| 191 | self.debug = False |
|---|
| 192 | self.state_filename = None |
|---|
| 193 | self.splitter_url = None |
|---|
| 194 | self.fedkit = None |
|---|
| 195 | |
|---|
| 196 | # XXX |
|---|
| 197 | self.ssh_pubkey_file = "/users/faber/.ssh/id_rsa.pub" |
|---|
| 198 | self.ssh_type = "rsa" |
|---|
| 199 | self.state = { } |
|---|
| 200 | self.state_lock = Lock() |
|---|
| 201 | self.tclsh = "/usr/local/bin/otclsh" |
|---|
| 202 | self.tcl_splitter = "/usr/testbed/lib/ns2ir/parse.tcl" |
|---|
| 203 | self.tbmap = { |
|---|
| 204 | 'deter':'https://users.isi.deterlab.net:23235', |
|---|
| 205 | 'emulab':'https://users.isi.deterlab.net:23236', |
|---|
| 206 | 'ucb':'https://users.isi.deterlab.net:23237', |
|---|
| 207 | } |
|---|
| 208 | self.trace_file = sys.stderr |
|---|
| 209 | |
|---|
| 210 | self.def_expstart = \ |
|---|
| 211 | "sudo -H /bin/sh /usr/local/federation/bin/federate.sh >& " +\ |
|---|
| 212 | "/tmp/federate"; |
|---|
| 213 | self.def_mexpstart = "sudo -H /usr/local/federation/bin/make_hosts " +\ |
|---|
| 214 | "FEDDIR/hosts"; |
|---|
| 215 | self.def_gwstart = \ |
|---|
| 216 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF>& " +\ |
|---|
| 217 | "/tmp/bridge.log"; |
|---|
| 218 | self.def_mgwstart = \ |
|---|
| 219 | "sudo -H /usr/local/federation/bin/fed-tun.pl -f GWCONF >& " +\ |
|---|
| 220 | "/tmp/bridge.log"; |
|---|
| 221 | self.def_gwimage = "FBSD61-TUNNEL2"; |
|---|
| 222 | self.def_gwtype = "pc"; |
|---|
| 223 | |
|---|
| 224 | |
|---|
| 225 | if self.ssh_pubkey_file: |
|---|
| 226 | try: |
|---|
| 227 | f = open(self.ssh_pubkey_file, 'r') |
|---|
| 228 | self.ssh_pubkey = f.read() |
|---|
| 229 | f.close() |
|---|
| 230 | except IOError: |
|---|
| 231 | raise service_error(service_error.internal, |
|---|
| 232 | "Cannot read sshpubkey") |
|---|
| 233 | |
|---|
| 234 | set_log_level(config, "experiment_control", self.log) |
|---|
| 235 | |
|---|
| 236 | # Grab saved state. OK to do this w/o locking because it's read only |
|---|
| 237 | # and only one thread should be in existence that can see self.state at |
|---|
| 238 | # this point. |
|---|
| 239 | if self.state_filename: |
|---|
| 240 | self.read_state() |
|---|
| 241 | |
|---|
| 242 | # Dispatch tables |
|---|
| 243 | self.soap_services = {\ |
|---|
| 244 | 'Create': make_soap_handler(\ |
|---|
| 245 | CreateRequestMessage.typecode, |
|---|
| 246 | getattr(self, "create_experiment"), |
|---|
| 247 | CreateResponseMessage, |
|---|
| 248 | "CreateResponseBody"), |
|---|
| 249 | 'Vtopo': make_soap_handler(\ |
|---|
| 250 | VtopoRequestMessage.typecode, |
|---|
| 251 | getattr(self, "get_vtopo"), |
|---|
| 252 | VtopoResponseMessage, |
|---|
| 253 | "VtopoResponseBody"), |
|---|
| 254 | 'Vis': make_soap_handler(\ |
|---|
| 255 | VisRequestMessage.typecode, |
|---|
| 256 | getattr(self, "get_vis"), |
|---|
| 257 | VisResponseMessage, |
|---|
| 258 | "VisResponseBody"), |
|---|
| 259 | 'Info': make_soap_handler(\ |
|---|
| 260 | InfoRequestMessage.typecode, |
|---|
| 261 | getattr(self, "get_info"), |
|---|
| 262 | InfoResponseMessage, |
|---|
| 263 | "InfoResponseBody"), |
|---|
| 264 | 'Terminate': make_soap_handler(\ |
|---|
| 265 | TerminateRequestMessage.typecode, |
|---|
| 266 | getattr(self, "terminate_experiment"), |
|---|
| 267 | TerminateResponseMessage, |
|---|
| 268 | "TerminateResponseBody"), |
|---|
| 269 | } |
|---|
| 270 | |
|---|
| 271 | self.xmlrpc_services = {\ |
|---|
| 272 | 'Create': make_xmlrpc_handler(\ |
|---|
| 273 | getattr(self, "create_experiment"), |
|---|
| 274 | "CreateResponseBody"), |
|---|
| 275 | 'Vtopo': make_xmlrpc_handler(\ |
|---|
| 276 | getattr(self, "get_vtopo"), |
|---|
| 277 | "VtopoResponseBody"), |
|---|
| 278 | 'Vis': make_xmlrpc_handler(\ |
|---|
| 279 | getattr(self, "get_vis"), |
|---|
| 280 | "VisResponseBody"), |
|---|
| 281 | 'Info': make_xmlrpc_handler(\ |
|---|
| 282 | getattr(self, "get_info"), |
|---|
| 283 | "InfoResponseBody"), |
|---|
| 284 | 'Terminate': make_xmlrpc_handler(\ |
|---|
| 285 | getattr(self, "terminate_experiment"), |
|---|
| 286 | "TerminateResponseBody"), |
|---|
| 287 | } |
|---|
| 288 | |
|---|
| 289 | def copy_file(self, src, dest, size=1024): |
|---|
| 290 | """ |
|---|
| 291 | Exceedingly simple file copy. |
|---|
| 292 | """ |
|---|
| 293 | s = open(src,'r') |
|---|
| 294 | d = open(dest, 'w') |
|---|
| 295 | |
|---|
| 296 | buf = "x" |
|---|
| 297 | while buf != "": |
|---|
| 298 | buf = s.read(size) |
|---|
| 299 | d.write(buf) |
|---|
| 300 | s.close() |
|---|
| 301 | d.close() |
|---|
| 302 | |
|---|
| 303 | # Call while holding self.state_lock |
|---|
| 304 | def write_state(self): |
|---|
| 305 | """ |
|---|
| 306 | Write a new copy of experiment state after copying the existing state |
|---|
| 307 | to a backup. |
|---|
| 308 | |
|---|
| 309 | State format is a simple pickling of the state dictionary. |
|---|
| 310 | """ |
|---|
| 311 | if os.access(self.state_filename, os.W_OK): |
|---|
| 312 | self.copy_file(self.state_filename, \ |
|---|
| 313 | "%s.bak" % self.state_filename) |
|---|
| 314 | try: |
|---|
| 315 | f = open(self.state_filename, 'w') |
|---|
| 316 | pickle.dump(self.state, f) |
|---|
| 317 | except IOError, e: |
|---|
| 318 | self.log.error("Can't write file %s: %s" % \ |
|---|
| 319 | (self.state_filename, e)) |
|---|
| 320 | except pickle.PicklingError, e: |
|---|
| 321 | self.log.error("Pickling problem: %s" % e) |
|---|
| 322 | except TypeError, e: |
|---|
| 323 | self.log.error("Pickling problem (TypeError): %s" % e) |
|---|
| 324 | |
|---|
| 325 | # Call while holding self.state_lock |
|---|
| 326 | def read_state(self): |
|---|
| 327 | """ |
|---|
| 328 | Read a new copy of experiment state. Old state is overwritten. |
|---|
| 329 | |
|---|
| 330 | State format is a simple pickling of the state dictionary. |
|---|
| 331 | """ |
|---|
| 332 | try: |
|---|
| 333 | f = open(self.state_filename, "r") |
|---|
| 334 | self.state = pickle.load(f) |
|---|
| 335 | self.log.debug("[read_state]: Read state from %s" % \ |
|---|
| 336 | self.state_filename) |
|---|
| 337 | except IOError, e: |
|---|
| 338 | self.log.warning("[read_state]: No saved state: Can't open %s: %s"\ |
|---|
| 339 | % (self.state_filename, e)) |
|---|
| 340 | except pickle.UnpicklingError, e: |
|---|
| 341 | self.log.warning(("[read_state]: No saved state: " + \ |
|---|
| 342 | "Unpickling failed: %s") % e) |
|---|
| 343 | |
|---|
| 344 | def scp_file(self, file, user, host, dest=""): |
|---|
| 345 | """ |
|---|
| 346 | scp a file to the remote host. If debug is set the action is only |
|---|
| 347 | logged. |
|---|
| 348 | """ |
|---|
| 349 | |
|---|
| 350 | scp_cmd = [self.scp_exec, file, "%s@%s:%s" % (user, host, dest)] |
|---|
| 351 | rv = 0 |
|---|
| 352 | |
|---|
| 353 | try: |
|---|
| 354 | dnull = open("/dev/null", "r") |
|---|
| 355 | except IOError: |
|---|
| 356 | self.log.debug("[ssh_file]: failed to open /dev/null for redirect") |
|---|
| 357 | dnull = Null |
|---|
| 358 | |
|---|
| 359 | self.log.debug("[scp_file]: %s" % " ".join(scp_cmd)) |
|---|
| 360 | if not self.debug: |
|---|
| 361 | if dnull: rv = call(scp_cmd, stdout=dnull, stderr=dnull) |
|---|
| 362 | else: rv = call(scp_cmd) |
|---|
| 363 | |
|---|
| 364 | return rv == 0 |
|---|
| 365 | |
|---|
| 366 | def ssh_cmd(self, user, host, cmd, wname=None): |
|---|
| 367 | """ |
|---|
| 368 | Run a remote command on host as user. If debug is set, the action is |
|---|
| 369 | only logged. |
|---|
| 370 | """ |
|---|
| 371 | sh_str = "%s %s@%s %s" % (self.ssh_exec, user, host, cmd) |
|---|
| 372 | |
|---|
| 373 | try: |
|---|
| 374 | dnull = open("/dev/null", "r") |
|---|
| 375 | except IOError: |
|---|
| 376 | self.log.debug("[ssh_cmd]: failed to open /dev/null for redirect") |
|---|
| 377 | dnull = Null |
|---|
| 378 | |
|---|
| 379 | self.log.debug("[ssh_cmd]: %s" % sh_str) |
|---|
| 380 | if not self.debug: |
|---|
| 381 | if dnull: |
|---|
| 382 | sub = Popen(sh_str, shell=True, stdout=dnull, stderr=dnull) |
|---|
| 383 | else: |
|---|
| 384 | sub = Popen(sh_str, shell=True) |
|---|
| 385 | return sub.wait() == 0 |
|---|
| 386 | else: |
|---|
| 387 | return True |
|---|
| 388 | |
|---|
| 389 | def ship_configs(self, host, user, src_dir, dest_dir): |
|---|
| 390 | """ |
|---|
| 391 | Copy federant-specific configuration files to the federant. |
|---|
| 392 | """ |
|---|
| 393 | if not self.ssh_cmd(user, host, "mkdir -p %s" % dest_dir): |
|---|
| 394 | return False |
|---|
| 395 | if not self.ssh_cmd(user, host, "chmod 770 %s" % dest_dir): |
|---|
| 396 | return False |
|---|
| 397 | |
|---|
| 398 | for f in os.listdir(src_dir): |
|---|
| 399 | if os.path.isdir(f): |
|---|
| 400 | if not self.ship_configs(host, user, "%s/%s" % (src_dir, f), |
|---|
| 401 | "%s/%s" % (dest_dir, f)): |
|---|
| 402 | return False |
|---|
| 403 | else: |
|---|
| 404 | if not self.scp_file("%s/%s" % (src_dir, f), |
|---|
| 405 | user, host, dest_dir): |
|---|
| 406 | return False |
|---|
| 407 | return True |
|---|
| 408 | |
|---|
| 409 | def start_segment(self, tb, eid, tbparams, tmpdir, timeout=0): |
|---|
| 410 | """ |
|---|
| 411 | Start a sub-experiment on a federant. |
|---|
| 412 | |
|---|
| 413 | Get the current state, modify or create as appropriate, ship data and |
|---|
| 414 | configs and start the experiment. There are small ordering differences |
|---|
| 415 | based on the initial state of the sub-experiment. |
|---|
| 416 | """ |
|---|
| 417 | # ops node in the federant |
|---|
| 418 | host = "%s%s" % (tbparams[tb]['host'], tbparams[tb]['domain']) |
|---|
| 419 | user = tbparams[tb]['user'] # federant user |
|---|
| 420 | pid = tbparams[tb]['project'] # federant project |
|---|
| 421 | # XXX |
|---|
| 422 | base_confs = ( "hosts",) |
|---|
| 423 | tclfile = "%s.%s.tcl" % (eid, tb) # sub-experiment description |
|---|
| 424 | # command to test experiment state |
|---|
| 425 | expinfo_exec = "/usr/testbed/bin/expinfo" |
|---|
| 426 | # Configuration directories on the remote machine |
|---|
| 427 | proj_dir = "/proj/%s/exp/%s/tmp" % (pid, eid) |
|---|
| 428 | tarfiles_dir = "/proj/%s/tarfiles/%s" % (pid, eid) |
|---|
| 429 | rpms_dir = "/proj/%s/rpms/%s" % (pid, eid) |
|---|
| 430 | # Regular expressions to parse the expinfo response |
|---|
| 431 | state_re = re.compile("State:\s+(\w+)") |
|---|
| 432 | no_exp_re = re.compile("^No\s+such\s+experiment") |
|---|
| 433 | state = None # Experiment state parsed from expinfo |
|---|
| 434 | # The expinfo ssh command |
|---|
| 435 | cmd = [self.ssh_exec, "%s@%s" % (user, host), expinfo_exec, pid, eid] |
|---|
| 436 | |
|---|
| 437 | # Get status |
|---|
| 438 | self.log.debug("[start_segment]: %s"% " ".join(cmd)) |
|---|
| 439 | dev_null = None |
|---|
| 440 | try: |
|---|
| 441 | dev_null = open("/dev/null", "a") |
|---|
| 442 | except IOError, e: |
|---|
| 443 | self.log.error("[start_segment]: can't open /dev/null: %s" %e) |
|---|
| 444 | |
|---|
| 445 | if self.debug: |
|---|
| 446 | state = 'swapped' |
|---|
| 447 | rv = 0 |
|---|
| 448 | else: |
|---|
| 449 | status = Popen(cmd, stdout=PIPE, stderr=dev_null) |
|---|
| 450 | for line in status.stdout: |
|---|
| 451 | m = state_re.match(line) |
|---|
| 452 | if m: state = m.group(1) |
|---|
| 453 | else: |
|---|
| 454 | m = no_exp_re.match(line) |
|---|
| 455 | if m: state = "none" |
|---|
| 456 | rv = status.wait() |
|---|
| 457 | |
|---|
| 458 | # If the experiment is not present the subcommand returns a non-zero |
|---|
| 459 | # return value. If we successfully parsed a "none" outcome, ignore the |
|---|
| 460 | # return code. |
|---|
| 461 | if rv != 0 and state != "none": |
|---|
| 462 | raise service_error(service_error.internal, |
|---|
| 463 | "Cannot get status of segment %s:%s/%s" % (tb, pid, eid)) |
|---|
| 464 | |
|---|
| 465 | self.log.debug("[start_segment]: %s: %s" % (tb, state)) |
|---|
| 466 | self.log.info("[start_segment]:transferring experiment to %s" % tb) |
|---|
| 467 | |
|---|
| 468 | if not self.scp_file("%s/%s/%s" % (tmpdir, tb, tclfile), user, host): |
|---|
| 469 | return False |
|---|
| 470 | # Clear the federation files |
|---|
| 471 | if not self.ssh_cmd(user, host, |
|---|
| 472 | "/bin/sh -c \"'/bin/rm -rf %s'\"" % proj_dir): |
|---|
| 473 | return False |
|---|
| 474 | if not self.ssh_cmd(user, host, |
|---|
| 475 | "/bin/sh -c \"'mkdir -p %s'\"" % proj_dir): |
|---|
| 476 | return False |
|---|
| 477 | # Clear and create the tarfiles and rpm directories |
|---|
| 478 | for d in (tarfiles_dir, rpms_dir): |
|---|
| 479 | if not self.ssh_cmd(user, host, |
|---|
| 480 | "/bin/sh -c \"'/bin/rm -rf %s/*'\"" % d): |
|---|
| 481 | return False |
|---|
| 482 | if not self.ssh_cmd(user, host, "mkdir -p %s" % d, |
|---|
| 483 | "create tarfiles"): |
|---|
| 484 | return False |
|---|
| 485 | |
|---|
| 486 | if state == 'active': |
|---|
| 487 | # Remote experiment is active. Modify it. |
|---|
| 488 | for f in base_confs: |
|---|
| 489 | if not self.scp_file("%s/%s" % (tmpdir, f), user, host, |
|---|
| 490 | "%s/%s" % (proj_dir, f)): |
|---|
| 491 | return False |
|---|
| 492 | if not self.ship_configs(host, user, "%s/%s" % (tmpdir, tb), |
|---|
| 493 | proj_dir): |
|---|
| 494 | return False |
|---|
| 495 | if os.path.isdir("%s/tarfiles" % tmpdir): |
|---|
| 496 | if not self.ship_configs(host, user, |
|---|
| 497 | "%s/tarfiles" % tmpdir, tarfiles_dir): |
|---|
| 498 | return False |
|---|
| 499 | if os.path.isdir("%s/rpms" % tmpdir): |
|---|
| 500 | if not self.ship_configs(host, user, |
|---|
| 501 | "%s/rpms" % tmpdir, tarfiles_dir): |
|---|
| 502 | return False |
|---|
| 503 | self.log.info("[start_segment]: Modifying %s on %s" % (eid, tb)) |
|---|
| 504 | if not self.ssh_cmd(user, host, |
|---|
| 505 | "/usr/testbed/bin/modexp -r -s -w %s %s %s" % \ |
|---|
| 506 | (pid, eid, tclfile), "modexp"): |
|---|
| 507 | return False |
|---|
| 508 | return True |
|---|
| 509 | elif state == "swapped": |
|---|
| 510 | # Remote experiment swapped out. Modify it and swap it in. |
|---|
| 511 | for f in base_confs: |
|---|
| 512 | if not self.scp_file("%s/%s" % (tmpdir, f), user, host, |
|---|
| 513 | "%s/%s" % (proj_dir, f)): |
|---|
| 514 | return False |
|---|
| 515 | if not self.ship_configs(host, user, "%s/%s" % (tmpdir, tb), |
|---|
| 516 | proj_dir): |
|---|
| 517 | return False |
|---|
| 518 | if os.path.isdir("%s/tarfiles" % tmpdir): |
|---|
| 519 | if not self.ship_configs(host, user, |
|---|
| 520 | "%s/tarfiles" % tmpdir, tarfiles_dir): |
|---|
| 521 | return False |
|---|
| 522 | if os.path.isdir("%s/rpms" % tmpdir): |
|---|
| 523 | if not self.ship_configs(host, user, |
|---|
| 524 | "%s/rpms" % tmpdir, tarfiles_dir): |
|---|
| 525 | return False |
|---|
| 526 | self.log.info("[start_segment]: Modifying %s on %s" % (eid, tb)) |
|---|
| 527 | if not self.ssh_cmd(user, host, |
|---|
| 528 | "/usr/testbed/bin/modexp -w %s %s %s" % (pid, eid, tclfile), |
|---|
| 529 | "modexp"): |
|---|
| 530 | return False |
|---|
| 531 | self.log.info("[start_segment]: Swapping %s in on %s" % (eid, tb)) |
|---|
| 532 | if not self.ssh_cmd(user, host, |
|---|
| 533 | "/usr/testbed/bin/swapexp -w %s %s in" % (pid, eid), |
|---|
| 534 | "swapexp"): |
|---|
| 535 | return False |
|---|
| 536 | return True |
|---|
| 537 | elif state == "none": |
|---|
| 538 | # No remote experiment. Create one. We do this in 2 steps so we |
|---|
| 539 | # can put the configuration files and scripts into the new |
|---|
| 540 | # experiment directories. |
|---|
| 541 | |
|---|
| 542 | # Tarfiles must be present for creation to work |
|---|
| 543 | if os.path.isdir("%s/tarfiles" % tmpdir): |
|---|
| 544 | if not self.ship_configs(host, user, |
|---|
| 545 | "%s/tarfiles" % tmpdir, tarfiles_dir): |
|---|
| 546 | return False |
|---|
| 547 | if os.path.isdir("%s/rpms" % tmpdir): |
|---|
| 548 | if not self.ship_configs(host, user, |
|---|
| 549 | "%s/rpms" % tmpdir, tarfiles_dir): |
|---|
| 550 | return False |
|---|
| 551 | self.log.info("[start_segment]: Creating %s on %s" % (eid, tb)) |
|---|
| 552 | if not self.ssh_cmd(user, host, |
|---|
| 553 | "/usr/testbed/bin/startexp -i -f -w -p %s -e %s %s" % \ |
|---|
| 554 | (pid, eid, tclfile), "startexp"): |
|---|
| 555 | return False |
|---|
| 556 | # After startexp the per-experiment directories exist |
|---|
| 557 | for f in base_confs: |
|---|
| 558 | if not self.scp_file("%s/%s" % (tmpdir, f), user, host, |
|---|
| 559 | "%s/%s" % (proj_dir, f)): |
|---|
| 560 | return False |
|---|
| 561 | if not self.ship_configs(host, user, "%s/%s" % (tmpdir, tb), |
|---|
| 562 | proj_dir): |
|---|
| 563 | return False |
|---|
| 564 | self.log.info("[start_segment]: Swapping %s in on %s" % (eid, tb)) |
|---|
| 565 | if not self.ssh_cmd(user, host, |
|---|
| 566 | "/usr/testbed/bin/swapexp -w %s %s in" % (pid, eid), |
|---|
| 567 | "swapexp"): |
|---|
| 568 | return False |
|---|
| 569 | return True |
|---|
| 570 | else: |
|---|
| 571 | self.log.debug("[start_segment]:unknown state %s" % state) |
|---|
| 572 | return False |
|---|
| 573 | |
|---|
| 574 | def stop_segment(self, tb, eid, tbparams): |
|---|
| 575 | """ |
|---|
| 576 | Stop a sub experiment by calling swapexp on the federant |
|---|
| 577 | """ |
|---|
| 578 | user = tbparams[tb]['user'] |
|---|
| 579 | host = tbparams[tb]['host'] |
|---|
| 580 | pid = tbparams[tb]['project'] |
|---|
| 581 | |
|---|
| 582 | self.log.info("[stop_segment]: Stopping %s on %s" % (eid, tb)) |
|---|
| 583 | return self.ssh_cmd(user, host, |
|---|
| 584 | "/usr/testbed/bin/swapexp -w %s %s out" % (pid, eid)) |
|---|
| 585 | |
|---|
| 586 | |
|---|
| 587 | def generate_ssh_keys(self, dest, type="rsa" ): |
|---|
| 588 | """ |
|---|
| 589 | Generate a set of keys for the gateways to use to talk. |
|---|
| 590 | |
|---|
| 591 | Keys are of type type and are stored in the required dest file. |
|---|
| 592 | """ |
|---|
| 593 | valid_types = ("rsa", "dsa") |
|---|
| 594 | t = type.lower(); |
|---|
| 595 | if t not in valid_types: raise ValueError |
|---|
| 596 | cmd = [self.ssh_keygen, '-t', t, '-N', '', '-f', dest] |
|---|
| 597 | |
|---|
| 598 | try: |
|---|
| 599 | trace = open("/dev/null", "w") |
|---|
| 600 | except IOError: |
|---|
| 601 | raise service_error(service_error.internal, |
|---|
| 602 | "Cannot open /dev/null??"); |
|---|
| 603 | |
|---|
| 604 | # May raise CalledProcessError |
|---|
| 605 | self.log.debug("[generate_ssh_keys]: %s" % " ".join(cmd)) |
|---|
| 606 | rv = call(cmd, stdout=trace, stderr=trace) |
|---|
| 607 | if rv != 0: |
|---|
| 608 | raise service_error(service_error.internal, |
|---|
| 609 | "Cannot generate nonce ssh keys. %s return code %d" \ |
|---|
| 610 | % (self.ssh_keygen, rv)) |
|---|
| 611 | |
|---|
| 612 | def gentopo(self, str): |
|---|
| 613 | """ |
|---|
| 614 | Generate the topology dtat structure from the splitter's XML |
|---|
| 615 | representation of it. |
|---|
| 616 | |
|---|
| 617 | The topology XML looks like: |
|---|
| 618 | <experiment> |
|---|
| 619 | <nodes> |
|---|
| 620 | <node><vname></vname><ips>ip1:ip2</ips></node> |
|---|
| 621 | </nodes> |
|---|
| 622 | <lans> |
|---|
| 623 | <lan> |
|---|
| 624 | <vname></vname><vnode></vnode><ip></ip> |
|---|
| 625 | <bandwidth></bandwidth><member>node:port</member> |
|---|
| 626 | </lan> |
|---|
| 627 | </lans> |
|---|
| 628 | """ |
|---|
| 629 | class topo_parse: |
|---|
| 630 | """ |
|---|
| 631 | Parse the topology XML and create the dats structure. |
|---|
| 632 | """ |
|---|
| 633 | def __init__(self): |
|---|
| 634 | # Typing of the subelements for data conversion |
|---|
| 635 | self.str_subelements = ('vname', 'vnode', 'ips', 'ip', 'member') |
|---|
| 636 | self.int_subelements = ( 'bandwidth',) |
|---|
| 637 | self.float_subelements = ( 'delay',) |
|---|
| 638 | # The final data structure |
|---|
| 639 | self.nodes = [ ] |
|---|
| 640 | self.lans = [ ] |
|---|
| 641 | self.topo = { \ |
|---|
| 642 | 'node': self.nodes,\ |
|---|
| 643 | 'lan' : self.lans,\ |
|---|
| 644 | } |
|---|
| 645 | self.element = { } # Current element being created |
|---|
| 646 | self.chars = "" # Last text seen |
|---|
| 647 | |
|---|
| 648 | def end_element(self, name): |
|---|
| 649 | # After each sub element the contents is added to the current |
|---|
| 650 | # element or to the appropriate list. |
|---|
| 651 | if name == 'node': |
|---|
| 652 | self.nodes.append(self.element) |
|---|
| 653 | self.element = { } |
|---|
| 654 | elif name == 'lan': |
|---|
| 655 | self.lans.append(self.element) |
|---|
| 656 | self.element = { } |
|---|
| 657 | elif name in self.str_subelements: |
|---|
| 658 | self.element[name] = self.chars |
|---|
| 659 | self.chars = "" |
|---|
| 660 | elif name in self.int_subelements: |
|---|
| 661 | self.element[name] = int(self.chars) |
|---|
| 662 | self.chars = "" |
|---|
| 663 | elif name in self.float_subelements: |
|---|
| 664 | self.element[name] = float(self.chars) |
|---|
| 665 | self.chars = "" |
|---|
| 666 | |
|---|
| 667 | def found_chars(self, data): |
|---|
| 668 | self.chars += data.rstrip() |
|---|
| 669 | |
|---|
| 670 | |
|---|
| 671 | tp = topo_parse(); |
|---|
| 672 | parser = xml.parsers.expat.ParserCreate() |
|---|
| 673 | parser.EndElementHandler = tp.end_element |
|---|
| 674 | parser.CharacterDataHandler = tp.found_chars |
|---|
| 675 | |
|---|
| 676 | parser.Parse(str) |
|---|
| 677 | |
|---|
| 678 | return tp.topo |
|---|
| 679 | |
|---|
| 680 | |
|---|
| 681 | def genviz(self, topo): |
|---|
| 682 | """ |
|---|
| 683 | Generate the visualization the virtual topology |
|---|
| 684 | """ |
|---|
| 685 | |
|---|
| 686 | neato = "/usr/local/bin/neato" |
|---|
| 687 | # These are used to parse neato output and to create the visualization |
|---|
| 688 | # file. |
|---|
| 689 | vis_re = re.compile('^\s*"?([\w\-]+)"?\s+\[.*pos="(\d+),(\d+)"') |
|---|
| 690 | vis_fmt = "<node><name>%s</name><x>%s</x><y>%s</y><type>" + \ |
|---|
| 691 | "%s</type></node>" |
|---|
| 692 | |
|---|
| 693 | try: |
|---|
| 694 | # Node names |
|---|
| 695 | nodes = [ n['vname'] for n in topo['node'] ] |
|---|
| 696 | topo_lans = topo['lan'] |
|---|
| 697 | except KeyError: |
|---|
| 698 | raise service_error(service_error.internal, "Bad topology") |
|---|
| 699 | |
|---|
| 700 | lans = { } |
|---|
| 701 | links = { } |
|---|
| 702 | |
|---|
| 703 | # Walk through the virtual topology, organizing the connections into |
|---|
| 704 | # 2-node connections (links) and more-than-2-node connections (lans). |
|---|
| 705 | # When a lan is created, it's added to the list of nodes (there's a |
|---|
| 706 | # node in the visualization for the lan). |
|---|
| 707 | for l in topo_lans: |
|---|
| 708 | if links.has_key(l['vname']): |
|---|
| 709 | if len(links[l['vname']]) < 2: |
|---|
| 710 | links[l['vname']].append(l['vnode']) |
|---|
| 711 | else: |
|---|
| 712 | nodes.append(l['vname']) |
|---|
| 713 | lans[l['vname']] = links[l['vname']] |
|---|
| 714 | del links[l['vname']] |
|---|
| 715 | lans[l['vname']].append(l['vnode']) |
|---|
| 716 | elif lans.has_key(l['vname']): |
|---|
| 717 | lans[l['vname']].append(l['vnode']) |
|---|
| 718 | else: |
|---|
| 719 | links[l['vname']] = [ l['vnode'] ] |
|---|
| 720 | |
|---|
| 721 | |
|---|
| 722 | # Open up a temporary file for dot to turn into a visualization |
|---|
| 723 | try: |
|---|
| 724 | df, dotname = tempfile.mkstemp() |
|---|
| 725 | dotfile = os.fdopen(df, 'w') |
|---|
| 726 | except IOError: |
|---|
| 727 | raise service_error(service_error.internal, |
|---|
| 728 | "Failed to open file in genviz") |
|---|
| 729 | |
|---|
| 730 | # Generate a dot/neato input file from the links, nodes and lans |
|---|
| 731 | try: |
|---|
| 732 | print >>dotfile, "graph G {" |
|---|
| 733 | for n in nodes: |
|---|
| 734 | print >>dotfile, '\t"%s"' % n |
|---|
| 735 | for l in links.keys(): |
|---|
| 736 | print >>dotfile, '\t"%s" -- "%s"' % tuple(links[l]) |
|---|
| 737 | for l in lans.keys(): |
|---|
| 738 | for n in lans[l]: |
|---|
| 739 | print >>dotfile, '\t "%s" -- "%s"' % (n,l) |
|---|
| 740 | print >>dotfile, "}" |
|---|
| 741 | dotfile.close() |
|---|
| 742 | except TypeError: |
|---|
| 743 | raise service_error(service_error.internal, |
|---|
| 744 | "Single endpoint link in vtopo") |
|---|
| 745 | except IOError: |
|---|
| 746 | raise service_error(service_error.internal, "Cannot write dot file") |
|---|
| 747 | |
|---|
| 748 | # Use dot to create a visualization |
|---|
| 749 | dot = Popen([neato, '-Gstart=rand', '-Gepsilon=0.005', '-Gmaxiter=2000', |
|---|
| 750 | '-Gpack=true', dotname], stdout=PIPE) |
|---|
| 751 | |
|---|
| 752 | # Translate dot to vis format |
|---|
| 753 | vis_nodes = [ ] |
|---|
| 754 | vis = { 'node': vis_nodes } |
|---|
| 755 | for line in dot.stdout: |
|---|
| 756 | m = vis_re.match(line) |
|---|
| 757 | if m: |
|---|
| 758 | vn = m.group(1) |
|---|
| 759 | vis_node = {'name': vn, \ |
|---|
| 760 | 'x': float(m.group(2)),\ |
|---|
| 761 | 'y' : float(m.group(3)),\ |
|---|
| 762 | } |
|---|
| 763 | if vn in links.keys() or vn in lans.keys(): |
|---|
| 764 | vis_node['type'] = 'lan' |
|---|
| 765 | else: |
|---|
| 766 | vis_node['type'] = 'node' |
|---|
| 767 | vis_nodes.append(vis_node) |
|---|
| 768 | rv = dot.wait() |
|---|
| 769 | |
|---|
| 770 | os.remove(dotname) |
|---|
| 771 | if rv == 0 : return vis |
|---|
| 772 | else: return None |
|---|
| 773 | |
|---|
| 774 | def get_access(self, tb, nodes, user, tbparam): |
|---|
| 775 | """ |
|---|
| 776 | Get access to testbed through fedd and set the parameters for that tb |
|---|
| 777 | """ |
|---|
| 778 | |
|---|
| 779 | translate_attr = { |
|---|
| 780 | 'slavenodestartcmd': 'expstart', |
|---|
| 781 | 'slaveconnectorstartcmd': 'gwstart', |
|---|
| 782 | 'masternodestartcmd': 'mexpstart', |
|---|
| 783 | 'masterconnectorstartcmd': 'mgwstart', |
|---|
| 784 | 'connectorimage': 'gwimage', |
|---|
| 785 | 'connectortype': 'gwtype', |
|---|
| 786 | 'tunnelcfg': 'tun', |
|---|
| 787 | 'smbshare': 'smbshare', |
|---|
| 788 | } |
|---|
| 789 | |
|---|
| 790 | uri = self.tbmap.get(tb, None) |
|---|
| 791 | if not uri: |
|---|
| 792 | raise service_error(serice_error.server_config, |
|---|
| 793 | "Unknown testbed: %s" % tb) |
|---|
| 794 | |
|---|
| 795 | # The basic request |
|---|
| 796 | req = {\ |
|---|
| 797 | 'destinationTestbed' : { 'uri' : uri }, |
|---|
| 798 | 'user': user, |
|---|
| 799 | 'allocID' : { 'localname': 'test' }, |
|---|
| 800 | # XXX: need to get service access stright |
|---|
| 801 | 'createAccess' : [ { 'sshPubkey' : self.ssh_pubkey } ], |
|---|
| 802 | 'serviceAccess' : [ { 'sshPubkey' : self.ssh_pubkey } ] |
|---|
| 803 | } |
|---|
| 804 | |
|---|
| 805 | # node resources if any |
|---|
| 806 | if nodes != None and len(nodes) > 0: |
|---|
| 807 | rnodes = [ ] |
|---|
| 808 | for n in nodes: |
|---|
| 809 | rn = { } |
|---|
| 810 | image, hw, count = n.split(":") |
|---|
| 811 | if image: rn['image'] = [ image ] |
|---|
| 812 | if hw: rn['hardware'] = [ hw ] |
|---|
| 813 | if count: rn['count'] = int(count) |
|---|
| 814 | rnodes.append(rn) |
|---|
| 815 | req['resources']= { } |
|---|
| 816 | req['resources']['node'] = rnodes |
|---|
| 817 | |
|---|
| 818 | # No retry loop here. Proxy servers must correctly authenticate |
|---|
| 819 | # themselves without help |
|---|
| 820 | |
|---|
| 821 | try: |
|---|
| 822 | ctx = fedd_ssl_context(self.cert_file, |
|---|
| 823 | self.trusted_certs, password=self.cert_pwd) |
|---|
| 824 | except SSL.SSLError: |
|---|
| 825 | raise service_error(service_error.server_config, |
|---|
| 826 | "Server certificates misconfigured") |
|---|
| 827 | |
|---|
| 828 | loc = feddServiceLocator(); |
|---|
| 829 | port = loc.getfeddPortType(uri, |
|---|
| 830 | transport=M2Crypto.httpslib.HTTPSConnection, |
|---|
| 831 | transdict={ 'ssl_context' : ctx }) |
|---|
| 832 | |
|---|
| 833 | # Reconstruct the full request message |
|---|
| 834 | msg = RequestAccessRequestMessage() |
|---|
| 835 | msg.set_element_RequestAccessRequestBody( |
|---|
| 836 | pack_soap(msg, "RequestAccessRequestBody", req)) |
|---|
| 837 | |
|---|
| 838 | try: |
|---|
| 839 | resp = port.RequestAccess(msg) |
|---|
| 840 | except ZSI.ParseException, e: |
|---|
| 841 | raise service_error(service_error.req, |
|---|
| 842 | "Bad format message (XMLRPC??): %s" % str(e)) |
|---|
| 843 | except ZSI.FaultException, e: |
|---|
| 844 | resp = e.fault.detail[0] |
|---|
| 845 | |
|---|
| 846 | # Again, weird incompatibilities rear their head. userRoles, which are |
|---|
| 847 | # restricted strings, seem to be encoded by ZSI as non-unicode strings |
|---|
| 848 | # in a way that confuses the pickling and XMLRPC sending systems. |
|---|
| 849 | # Explicitly unicoding them seems to fix this, though it concerns me |
|---|
| 850 | # some. It may be that these things are actually a ZSI string |
|---|
| 851 | # subclass, and the character encoding is not the major issue. In any |
|---|
| 852 | # case, making all the subclasses of basestring into unicode strings |
|---|
| 853 | # unifies the response format and solves the problem. |
|---|
| 854 | r = make_unicode(fedids_to_obj(unpack_soap(resp))) |
|---|
| 855 | |
|---|
| 856 | if r.has_key('RequestAccessResponseBody'): |
|---|
| 857 | r = r['RequestAccessResponseBody'] |
|---|
| 858 | else: |
|---|
| 859 | raise service_error(service_error.proxy, |
|---|
| 860 | "Bad proxy response") |
|---|
| 861 | |
|---|
| 862 | e = r['emulab'] |
|---|
| 863 | p = e['project'] |
|---|
| 864 | tbparam[tb] = { |
|---|
| 865 | "boss": e['boss'], |
|---|
| 866 | "host": e['ops'], |
|---|
| 867 | "domain": e['domain'], |
|---|
| 868 | "fs": e['fileServer'], |
|---|
| 869 | "eventserver": e['eventServer'], |
|---|
| 870 | "project": unpack_id(p['name']), |
|---|
| 871 | "emulab" : e, |
|---|
| 872 | "allocID" : r['allocID'], |
|---|
| 873 | } |
|---|
| 874 | # Make the testbed name be the label the user applied |
|---|
| 875 | p['testbed'] = {'localname': tb } |
|---|
| 876 | |
|---|
| 877 | for u in p['user']: |
|---|
| 878 | tbparam[tb]['user'] = unpack_id(u['userID']) |
|---|
| 879 | |
|---|
| 880 | for a in e['fedAttr']: |
|---|
| 881 | if a['attribute']: |
|---|
| 882 | key = translate_attr.get(a['attribute'].lower(), None) |
|---|
| 883 | if key: |
|---|
| 884 | tbparam[tb][key]= a['value'] |
|---|
| 885 | |
|---|
| 886 | def release_access(self, tb, aid): |
|---|
| 887 | """ |
|---|
| 888 | Release access to testbed through fedd |
|---|
| 889 | """ |
|---|
| 890 | |
|---|
| 891 | uri = self.tbmap.get(tb, None) |
|---|
| 892 | if not uri: |
|---|
| 893 | raise service_error(serice_error.server_config, |
|---|
| 894 | "Unknown testbed: %s" % tb) |
|---|
| 895 | |
|---|
| 896 | # The basic request |
|---|
| 897 | req = { 'allocID' : aid } |
|---|
| 898 | |
|---|
| 899 | # No retry loop here. Proxy servers must correctly authenticate |
|---|
| 900 | # themselves without help |
|---|
| 901 | try: |
|---|
| 902 | ctx = fedd_ssl_context(self.cert_file, |
|---|
| 903 | self.trusted_certs, password=self.cert_pwd) |
|---|
| 904 | except SSL.SSLError: |
|---|
| 905 | raise service_error(service_error.server_config, |
|---|
| 906 | "Server certificates misconfigured") |
|---|
| 907 | |
|---|
| 908 | loc = feddServiceLocator(); |
|---|
| 909 | port = loc.getfeddPortType(uri, |
|---|
| 910 | transport=M2Crypto.httpslib.HTTPSConnection, |
|---|
| 911 | transdict={ 'ssl_context' : ctx }) |
|---|
| 912 | |
|---|
| 913 | # Reconstruct the full request message |
|---|
| 914 | msg = ReleaseAccessRequestMessage() |
|---|
| 915 | msg.set_element_ReleaseAccessRequestBody( |
|---|
| 916 | pack_soap(msg, "ReleaseAccessRequestBody", req)) |
|---|
| 917 | |
|---|
| 918 | try: |
|---|
| 919 | resp = port.ReleaseAccess(msg) |
|---|
| 920 | except ZSI.ParseException, e: |
|---|
| 921 | raise service_error(service_error.req, |
|---|
| 922 | "Bad format message (XMLRPC??): %s" % str(e)) |
|---|
| 923 | except ZSI.FaultException, e: |
|---|
| 924 | resp = e.fault.detail[0] |
|---|
| 925 | |
|---|
| 926 | # better error coding |
|---|
| 927 | |
|---|
| 928 | def remote_splitter(self, uri, desc, master): |
|---|
| 929 | |
|---|
| 930 | req = { |
|---|
| 931 | 'description' : { 'ns2description': desc }, |
|---|
| 932 | 'master': master, |
|---|
| 933 | 'include_fedkit': bool(self.fedkit) |
|---|
| 934 | } |
|---|
| 935 | |
|---|
| 936 | # No retry loop here. Proxy servers must correctly authenticate |
|---|
| 937 | # themselves without help |
|---|
| 938 | try: |
|---|
| 939 | ctx = fedd_ssl_context(self.cert_file, |
|---|
| 940 | self.trusted_certs, password=self.cert_pwd) |
|---|
| 941 | except SSL.SSLError: |
|---|
| 942 | raise service_error(service_error.server_config, |
|---|
| 943 | "Server certificates misconfigured") |
|---|
| 944 | |
|---|
| 945 | loc = feddInternalServiceLocator(); |
|---|
| 946 | port = loc.getfeddInternalPortType(uri, |
|---|
| 947 | transport=M2Crypto.httpslib.HTTPSConnection, |
|---|
| 948 | transdict={ 'ssl_context' : ctx }) |
|---|
| 949 | |
|---|
| 950 | # Reconstruct the full request message |
|---|
| 951 | msg = Ns2SplitRequestMessage() |
|---|
| 952 | msg.set_element_Ns2SplitRequestBody( |
|---|
| 953 | pack_soap(msg, "Ns2SplitRequestBody", req)) |
|---|
| 954 | |
|---|
| 955 | try: |
|---|
| 956 | resp = port.Ns2Split(msg) |
|---|
| 957 | except ZSI.ParseException, e: |
|---|
| 958 | raise service_error(service_error.req, |
|---|
| 959 | "Bad format message (XMLRPC??): %s" % |
|---|
| 960 | str(e)) |
|---|
| 961 | r = unpack_soap(resp) |
|---|
| 962 | if r.has_key('Ns2SplitResponseBody'): |
|---|
| 963 | r = r['Ns2SplitResponseBody'] |
|---|
| 964 | if r.has_key('output'): |
|---|
| 965 | return r['output'].splitlines() |
|---|
| 966 | else: |
|---|
| 967 | raise service_error(service_error.proxy, |
|---|
| 968 | "Bad splitter response (no output)") |
|---|
| 969 | else: |
|---|
| 970 | raise service_error(service_error.proxy, "Bad splitter response") |
|---|
| 971 | |
|---|
| 972 | class current_testbed: |
|---|
| 973 | """ |
|---|
| 974 | Object for collecting the current testbed description. The testbed |
|---|
| 975 | description is saved to a file with the local testbed variables |
|---|
| 976 | subsittuted line by line. |
|---|
| 977 | """ |
|---|
| 978 | def __init__(self, eid, tmpdir, fedkit): |
|---|
| 979 | self.begin_testbed = re.compile("^#\s+Begin\s+Testbed\s+\((\w+)\)") |
|---|
| 980 | self.end_testbed = re.compile("^#\s+End\s+Testbed\s+\((\w+)\)") |
|---|
| 981 | self.current_testbed = None |
|---|
| 982 | self.testbed_file = None |
|---|
| 983 | |
|---|
| 984 | self.def_expstart = \ |
|---|
| 985 | "sudo -H /bin/sh FEDDIR/fed_bootstrap >& /tmp/federate"; |
|---|
| 986 | self.def_mexpstart = "sudo -H FEDDIR/make_hosts FEDDIR/hosts"; |
|---|
| 987 | self.def_gwstart = \ |
|---|
| 988 | "sudo -H FEDDIR/fed-tun.pl -f GWCONF>& /tmp/bridge.log"; |
|---|
| 989 | self.def_mgwstart = \ |
|---|
| 990 | "sudo -H FEDDIR/fed-tun.pl -f GWCONF >& /tmp/bridge.log"; |
|---|
| 991 | self.def_gwimage = "FBSD61-TUNNEL2"; |
|---|
| 992 | self.def_gwtype = "pc"; |
|---|
| 993 | |
|---|
| 994 | self.eid = eid |
|---|
| 995 | self.tmpdir = tmpdir |
|---|
| 996 | self.fedkit = fedkit |
|---|
| 997 | |
|---|
| 998 | def __call__(self, line, master, allocated, tbparams): |
|---|
| 999 | # Capture testbed topology descriptions |
|---|
| 1000 | if self.current_testbed == None: |
|---|
| 1001 | m = self.begin_testbed.match(line) |
|---|
| 1002 | if m != None: |
|---|
| 1003 | self.current_testbed = m.group(1) |
|---|
| 1004 | if self.current_testbed == None: |
|---|
| 1005 | raise service_error(service_error.req, |
|---|
| 1006 | "Bad request format (unnamed testbed)") |
|---|
| 1007 | allocated[self.current_testbed] = \ |
|---|
| 1008 | allocated.get(self.current_testbed,0) + 1 |
|---|
| 1009 | tb_dir = "%s/%s" % (self.tmpdir, self.current_testbed) |
|---|
| 1010 | if not os.path.exists(tb_dir): |
|---|
| 1011 | try: |
|---|
| 1012 | os.mkdir(tb_dir) |
|---|
| 1013 | except IOError: |
|---|
| 1014 | raise service_error(service_error.internal, |
|---|
| 1015 | "Cannot create %s" % tb_dir) |
|---|
| 1016 | try: |
|---|
| 1017 | self.testbed_file = open("%s/%s.%s.tcl" % |
|---|
| 1018 | (tb_dir, self.eid, self.current_testbed), 'w') |
|---|
| 1019 | except IOError: |
|---|
| 1020 | self.testbed_file = None |
|---|
| 1021 | return True |
|---|
| 1022 | else: return False |
|---|
| 1023 | else: |
|---|
| 1024 | m = self.end_testbed.match(line) |
|---|
| 1025 | if m != None: |
|---|
| 1026 | if m.group(1) != self.current_testbed: |
|---|
| 1027 | raise service_error(service_error.internal, |
|---|
| 1028 | "Mismatched testbed markers!?") |
|---|
| 1029 | if self.testbed_file != None: |
|---|
| 1030 | self.testbed_file.close() |
|---|
| 1031 | self.testbed_file = None |
|---|
| 1032 | self.current_testbed = None |
|---|
| 1033 | elif self.testbed_file: |
|---|
| 1034 | # Substitute variables and put the line into the local |
|---|
| 1035 | # testbed file. |
|---|
| 1036 | gwtype = tbparams[self.current_testbed].get('gwtype', |
|---|
| 1037 | self.def_gwtype) |
|---|
| 1038 | gwimage = tbparams[self.current_testbed].get('gwimage', |
|---|
| 1039 | self.def_gwimage) |
|---|
| 1040 | mgwstart = tbparams[self.current_testbed].get('mgwstart', |
|---|
| 1041 | self.def_mgwstart) |
|---|
| 1042 | mexpstart = tbparams[self.current_testbed].get('mexpstart', |
|---|
| 1043 | self.def_mexpstart) |
|---|
| 1044 | gwstart = tbparams[self.current_testbed].get('gwstart', |
|---|
| 1045 | self.def_gwstart) |
|---|
| 1046 | expstart = tbparams[self.current_testbed].get('expstart', |
|---|
| 1047 | self.def_expstart) |
|---|
| 1048 | project = tbparams[self.current_testbed].get('project') |
|---|
| 1049 | line = re.sub("GWTYPE", gwtype, line) |
|---|
| 1050 | line = re.sub("GWIMAGE", gwimage, line) |
|---|
| 1051 | if self.current_testbed == master: |
|---|
| 1052 | line = re.sub("GWSTART", mgwstart, line) |
|---|
| 1053 | line = re.sub("EXPSTART", mexpstart, line) |
|---|
| 1054 | else: |
|---|
| 1055 | line = re.sub("GWSTART", gwstart, line) |
|---|
| 1056 | line = re.sub("EXPSTART", expstart, line) |
|---|
| 1057 | line = re.sub("GWCONF", "FEDDIR`hostname`.gw.conf", line) |
|---|
| 1058 | line = re.sub("PROJDIR", "/proj/%s/" % project, line) |
|---|
| 1059 | line = re.sub("EID", self.eid, line) |
|---|
| 1060 | line = re.sub("FEDDIR", "/proj/%s/exp/%s/tmp/" % \ |
|---|
| 1061 | (project, self.eid), line) |
|---|
| 1062 | if self.fedkit: |
|---|
| 1063 | line = re.sub("FEDKIT", os.path.basename(self.fedkit), |
|---|
| 1064 | line) |
|---|
| 1065 | print >>self.testbed_file, line |
|---|
| 1066 | return True |
|---|
| 1067 | |
|---|
| 1068 | class allbeds: |
|---|
| 1069 | """ |
|---|
| 1070 | Process the Allbeds section. Get access to each federant and save the |
|---|
| 1071 | parameters in tbparams |
|---|
| 1072 | """ |
|---|
| 1073 | def __init__(self, get_access): |
|---|
| 1074 | self.begin_allbeds = re.compile("^#\s+Begin\s+Allbeds") |
|---|
| 1075 | self.end_allbeds = re.compile("^#\s+End\s+Allbeds") |
|---|
| 1076 | self.in_allbeds = False |
|---|
| 1077 | self.get_access = get_access |
|---|
| 1078 | |
|---|
| 1079 | def __call__(self, line, user, tbparams): |
|---|
| 1080 | # Testbed access parameters |
|---|
| 1081 | if not self.in_allbeds: |
|---|
| 1082 | if self.begin_allbeds.match(line): |
|---|
| 1083 | self.in_allbeds = True |
|---|
| 1084 | return True |
|---|
| 1085 | else: |
|---|
| 1086 | return False |
|---|
| 1087 | else: |
|---|
| 1088 | if self.end_allbeds.match(line): |
|---|
| 1089 | self.in_allbeds = False |
|---|
| 1090 | else: |
|---|
| 1091 | nodes = line.split('|') |
|---|
| 1092 | tb = nodes.pop(0) |
|---|
| 1093 | self.get_access(tb, nodes, user, tbparams) |
|---|
| 1094 | return True |
|---|
| 1095 | |
|---|
| 1096 | class gateways: |
|---|
| 1097 | def __init__(self, eid, master, tmpdir, gw_pubkey, |
|---|
| 1098 | gw_secretkey, copy_file, fedkit): |
|---|
| 1099 | self.begin_gateways = \ |
|---|
| 1100 | re.compile("^#\s+Begin\s+gateways\s+\((\w+)\)") |
|---|
| 1101 | self.end_gateways = re.compile("^#\s+End\s+gateways\s+\((\w+)\)") |
|---|
| 1102 | self.current_gateways = None |
|---|
| 1103 | self.control_gateway = None |
|---|
| 1104 | self.active_end = { } |
|---|
| 1105 | |
|---|
| 1106 | self.eid = eid |
|---|
| 1107 | self.master = master |
|---|
| 1108 | self.tmpdir = tmpdir |
|---|
| 1109 | self.gw_pubkey_base = gw_pubkey |
|---|
| 1110 | self.gw_secretkey_base = gw_secretkey |
|---|
| 1111 | |
|---|
| 1112 | self.copy_file = copy_file |
|---|
| 1113 | self.fedkit = fedkit |
|---|
| 1114 | |
|---|
| 1115 | |
|---|
| 1116 | def gateway_conf_file(self, gw, master, eid, pubkey, privkey, |
|---|
| 1117 | active_end, tbparams, dtb, myname, desthost, type): |
|---|
| 1118 | """ |
|---|
| 1119 | Produce a gateway configuration file from a gateways line. |
|---|
| 1120 | """ |
|---|
| 1121 | |
|---|
| 1122 | sproject = tbparams[gw].get('project', 'project') |
|---|
| 1123 | dproject = tbparams[dtb].get('project', 'project') |
|---|
| 1124 | sdomain = ".%s.%s%s" % (eid, sproject, |
|---|
| 1125 | tbparams[gw].get('domain', ".example.com")) |
|---|
| 1126 | ddomain = ".%s.%s%s" % (eid, dproject, |
|---|
| 1127 | tbparams[dtb].get('domain', ".example.com")) |
|---|
| 1128 | boss = tbparams[master].get('boss', "boss") |
|---|
| 1129 | fs = tbparams[master].get('fs', "fs") |
|---|
| 1130 | event_server = "%s%s" % \ |
|---|
| 1131 | (tbparams[gw].get('eventserver', "event_server"), |
|---|
| 1132 | tbparams[gw].get('domain', "example.com")) |
|---|
| 1133 | remote_event_server = "%s%s" % \ |
|---|
| 1134 | (tbparams[dtb].get('eventserver', "event_server"), |
|---|
| 1135 | tbparams[dtb].get('domain', "example.com")) |
|---|
| 1136 | seer_control = "%s%s" % \ |
|---|
| 1137 | (tbparams[gw].get('control', "control"), sdomain) |
|---|
| 1138 | |
|---|
| 1139 | if self.fedkit: |
|---|
| 1140 | remote_script_dir = "/usr/local/federation/bin" |
|---|
| 1141 | local_script_dir = "/usr/local/federation/bin" |
|---|
| 1142 | else: |
|---|
| 1143 | remote_script_dir = "/proj/%s/exp/%s/tmp" % ( dproject, eid) |
|---|
| 1144 | local_script_dir = "/proj/%s/exp/%s/tmp" % ( sproject, eid) |
|---|
| 1145 | |
|---|
| 1146 | local_key_dir = "/proj/%s/exp/%s/tmp" % ( sproject, eid) |
|---|
| 1147 | remote_conf_dir = "/proj/%s/exp/%s/tmp" % ( dproject, eid) |
|---|
| 1148 | tunnel_cfg = tbparams[gw].get("tun", "false") |
|---|
| 1149 | |
|---|
| 1150 | conf_file = "%s%s.gw.conf" % (myname, sdomain) |
|---|
| 1151 | remote_conf_file = "%s%s.gw.conf" % (desthost, ddomain) |
|---|
| 1152 | |
|---|
| 1153 | # translate to lower case so the `hostname` hack for specifying |
|---|
| 1154 | # configuration files works. |
|---|
| 1155 | conf_file = conf_file.lower(); |
|---|
| 1156 | remote_conf_file = remote_conf_file.lower(); |
|---|
| 1157 | |
|---|
| 1158 | if dtb == master: |
|---|
| 1159 | active = "false" |
|---|
| 1160 | elif gw == master: |
|---|
| 1161 | active = "true" |
|---|
| 1162 | elif active_end.has_key['%s-%s' % (dtb, gw)]: |
|---|
| 1163 | active = "false" |
|---|
| 1164 | else: |
|---|
| 1165 | active_end['%s-%s' % (gw, dtb)] = 1 |
|---|
| 1166 | active = "true" |
|---|
| 1167 | |
|---|
| 1168 | gwconfig = open("%s/%s/%s" % (self.tmpdir, gw, conf_file), "w") |
|---|
| 1169 | print >>gwconfig, "Active: %s" % active |
|---|
| 1170 | print >>gwconfig, "TunnelCfg: %s" % tunnel_cfg |
|---|
| 1171 | print >>gwconfig, "BossName: %s" % boss |
|---|
| 1172 | print >>gwconfig, "FsName: %s" % fs |
|---|
| 1173 | print >>gwconfig, "EventServerName: %s" % event_server |
|---|
| 1174 | print >>gwconfig, "RemoteEventServerName: %s" % remote_event_server |
|---|
| 1175 | print >>gwconfig, "SeerControl: %s" % seer_control |
|---|
| 1176 | print >>gwconfig, "Type: %s" % type |
|---|
| 1177 | print >>gwconfig, "RemoteScriptDir: %s" % remote_script_dir |
|---|
| 1178 | print >>gwconfig, "EventRepeater: %s/fed_evrepeater" % \ |
|---|
| 1179 | local_script_dir |
|---|
| 1180 | print >>gwconfig, "RemoteExperiment: %s/%s" % (dproject, eid) |
|---|
| 1181 | print >>gwconfig, "LocalExperiment: %s/%s" % (sproject, eid) |
|---|
| 1182 | print >>gwconfig, "RemoteConfigFile: %s/%s" % \ |
|---|
| 1183 | (remote_conf_dir, remote_conf_file) |
|---|
| 1184 | print >>gwconfig, "Peer: %s%s" % (desthost, ddomain) |
|---|
| 1185 | print >>gwconfig, "Pubkeys: %s/%s" % (local_key_dir, pubkey) |
|---|
| 1186 | print >>gwconfig, "Privkeys: %s/%s" % (local_key_dir, privkey) |
|---|
| 1187 | gwconfig.close() |
|---|
| 1188 | |
|---|
| 1189 | return active == "true" |
|---|
| 1190 | |
|---|
| 1191 | def __call__(self, line, allocated, tbparams): |
|---|
| 1192 | # Process gateways |
|---|
| 1193 | if not self.current_gateways: |
|---|
| 1194 | m = self.begin_gateways.match(line) |
|---|
| 1195 | if m: |
|---|
| 1196 | self.current_gateways = m.group(1) |
|---|
| 1197 | if allocated.has_key(self.current_gateways): |
|---|
| 1198 | # This test should always succeed |
|---|
| 1199 | tb_dir = "%s/%s" % (self.tmpdir, self.current_gateways) |
|---|
| 1200 | if not os.path.exists(tb_dir): |
|---|
| 1201 | try: |
|---|
| 1202 | os.mkdir(tb_dir) |
|---|
| 1203 | except IOError: |
|---|
| 1204 | raise service_error(service_error.internal, |
|---|
| 1205 | "Cannot create %s" % tb_dir) |
|---|
| 1206 | else: |
|---|
| 1207 | # XXX |
|---|
| 1208 | self.log.error("[gateways]: Ignoring gateways for " + \ |
|---|
| 1209 | "unknown testbed %s" % self.current_gateways) |
|---|
| 1210 | self.current_gateways = None |
|---|
| 1211 | return True |
|---|
| 1212 | else: |
|---|
| 1213 | return False |
|---|
| 1214 | else: |
|---|
| 1215 | m = self.end_gateways.match(line) |
|---|
| 1216 | if m : |
|---|
| 1217 | if m.group(1) != self.current_gateways: |
|---|
| 1218 | raise service_error(service_error.internal, |
|---|
| 1219 | "Mismatched gateway markers!?") |
|---|
| 1220 | if self.control_gateway: |
|---|
| 1221 | try: |
|---|
| 1222 | cc = open("%s/%s/client.conf" % |
|---|
| 1223 | (self.tmpdir, self.current_gateways), 'w') |
|---|
| 1224 | print >>cc, "ControlGateway: %s" % \ |
|---|
| 1225 | self.control_gateway |
|---|
| 1226 | if tbparams[self.master].has_key('smbshare'): |
|---|
| 1227 | print >>cc, "SMBSHare: %s" % \ |
|---|
| 1228 | tbparams[self.master]['smbshare'] |
|---|
| 1229 | print >>cc, "ProjectUser: %s" % \ |
|---|
| 1230 | tbparams[self.master]['user'] |
|---|
| 1231 | print >>cc, "ProjectName: %s" % \ |
|---|
| 1232 | tbparams[self.master]['project'] |
|---|
| 1233 | cc.close() |
|---|
| 1234 | except IOError: |
|---|
| 1235 | raise service_error(service_error.internal, |
|---|
| 1236 | "Error creating client config") |
|---|
| 1237 | try: |
|---|
| 1238 | cc = open("%s/%s/seer.conf" % |
|---|
| 1239 | (self.tmpdir, self.current_gateways), |
|---|
| 1240 | 'w') |
|---|
| 1241 | if self.current_gateways != self.master: |
|---|
| 1242 | print >>cc, "ControlNode: %s" % \ |
|---|
| 1243 | self.control_gateway |
|---|
| 1244 | print >>cc, "ExperimentID: %s/%s" % \ |
|---|
| 1245 | ( tbparams[self.master]['project'], \ |
|---|
| 1246 | self.eid ) |
|---|
| 1247 | cc.close() |
|---|
| 1248 | except IOError: |
|---|
| 1249 | raise service_error(service_error.internal, |
|---|
| 1250 | "Error creating seer config") |
|---|
| 1251 | else: |
|---|
| 1252 | debug.error("[gateways]: No control gateway for %s" %\ |
|---|
| 1253 | self.current_gateways) |
|---|
| 1254 | self.current_gateways = None |
|---|
| 1255 | else: |
|---|
| 1256 | dtb, myname, desthost, type = line.split(" ") |
|---|
| 1257 | |
|---|
| 1258 | if type == "control" or type == "both": |
|---|
| 1259 | self.control_gateway = "%s.%s.%s%s" % (myname, |
|---|
| 1260 | self.eid, |
|---|
| 1261 | tbparams[self.current_gateways]['project'], |
|---|
| 1262 | tbparams[self.current_gateways]['domain']) |
|---|
| 1263 | try: |
|---|
| 1264 | active = self.gateway_conf_file(self.current_gateways, |
|---|
| 1265 | self.master, self.eid, self.gw_pubkey_base, |
|---|
| 1266 | self.gw_secretkey_base, |
|---|
| 1267 | self.active_end, tbparams, dtb, myname, |
|---|
| 1268 | desthost, type) |
|---|
| 1269 | except IOError, e: |
|---|
| 1270 | raise service_error(service_error.internal, |
|---|
| 1271 | "Failed to write config file for %s" % \ |
|---|
| 1272 | self.current_gateway) |
|---|
| 1273 | |
|---|
| 1274 | gw_pubkey = "%s/keys/%s" % \ |
|---|
| 1275 | (self.tmpdir, self.gw_pubkey_base) |
|---|
| 1276 | gw_secretkey = "%s/keys/%s" % \ |
|---|
| 1277 | (self.tmpdir, self.gw_secretkey_base) |
|---|
| 1278 | |
|---|
| 1279 | pkfile = "%s/%s/%s" % \ |
|---|
| 1280 | ( self.tmpdir, self.current_gateways, |
|---|
| 1281 | self.gw_pubkey_base) |
|---|
| 1282 | skfile = "%s/%s/%s" % \ |
|---|
| 1283 | ( self.tmpdir, self.current_gateways, |
|---|
| 1284 | self.gw_secretkey_base) |
|---|
| 1285 | |
|---|
| 1286 | if not os.path.exists(pkfile): |
|---|
| 1287 | try: |
|---|
| 1288 | self.copy_file(gw_pubkey, pkfile) |
|---|
| 1289 | except IOError: |
|---|
| 1290 | service_error(service_error.internal, |
|---|
| 1291 | "Failed to copy pubkey file") |
|---|
| 1292 | |
|---|
| 1293 | if active and not os.path.exists(skfile): |
|---|
| 1294 | try: |
|---|
| 1295 | self.copy_file(gw_secretkey, skfile) |
|---|
| 1296 | except IOError: |
|---|
| 1297 | service_error(service_error.internal, |
|---|
| 1298 | "Failed to copy secretkey file") |
|---|
| 1299 | return True |
|---|
| 1300 | |
|---|
| 1301 | class shunt_to_file: |
|---|
| 1302 | """ |
|---|
| 1303 | Simple class to write data between two regexps to a file. |
|---|
| 1304 | """ |
|---|
| 1305 | def __init__(self, begin, end, filename): |
|---|
| 1306 | """ |
|---|
| 1307 | Begin shunting on a match of begin, stop on end, send data to |
|---|
| 1308 | filename. |
|---|
| 1309 | """ |
|---|
| 1310 | self.begin = re.compile(begin) |
|---|
| 1311 | self.end = re.compile(end) |
|---|
| 1312 | self.in_shunt = False |
|---|
| 1313 | self.file = None |
|---|
| 1314 | self.filename = filename |
|---|
| 1315 | |
|---|
| 1316 | def __call__(self, line): |
|---|
| 1317 | """ |
|---|
| 1318 | Call this on each line in the input that may be shunted. |
|---|
| 1319 | """ |
|---|
| 1320 | if not self.in_shunt: |
|---|
| 1321 | if self.begin.match(line): |
|---|
| 1322 | self.in_shunt = True |
|---|
| 1323 | try: |
|---|
| 1324 | self.file = open(self.filename, "w") |
|---|
| 1325 | except: |
|---|
| 1326 | self.file = None |
|---|
| 1327 | raise |
|---|
| 1328 | return True |
|---|
| 1329 | else: |
|---|
| 1330 | return False |
|---|
| 1331 | else: |
|---|
| 1332 | if self.end.match(line): |
|---|
| 1333 | if self.file: |
|---|
| 1334 | self.file.close() |
|---|
| 1335 | self.file = None |
|---|
| 1336 | self.in_shunt = False |
|---|
| 1337 | else: |
|---|
| 1338 | if self.file: |
|---|
| 1339 | print >>self.file, line |
|---|
| 1340 | return True |
|---|
| 1341 | |
|---|
| 1342 | class shunt_to_list: |
|---|
| 1343 | """ |
|---|
| 1344 | Same interface as shunt_to_file. Data collected in self.list, one list |
|---|
| 1345 | element per line. |
|---|
| 1346 | """ |
|---|
| 1347 | def __init__(self, begin, end): |
|---|
| 1348 | self.begin = re.compile(begin) |
|---|
| 1349 | self.end = re.compile(end) |
|---|
| 1350 | self.in_shunt = False |
|---|
| 1351 | self.list = [ ] |
|---|
| 1352 | |
|---|
| 1353 | def __call__(self, line): |
|---|
| 1354 | if not self.in_shunt: |
|---|
| 1355 | if self.begin.match(line): |
|---|
| 1356 | self.in_shunt = True |
|---|
| 1357 | return True |
|---|
| 1358 | else: |
|---|
| 1359 | return False |
|---|
| 1360 | else: |
|---|
| 1361 | if self.end.match(line): |
|---|
| 1362 | self.in_shunt = False |
|---|
| 1363 | else: |
|---|
| 1364 | self.list.append(line) |
|---|
| 1365 | return True |
|---|
| 1366 | |
|---|
| 1367 | class shunt_to_string: |
|---|
| 1368 | """ |
|---|
| 1369 | Same interface as shunt_to_file. Data collected in self.str, all in |
|---|
| 1370 | one string. |
|---|
| 1371 | """ |
|---|
| 1372 | def __init__(self, begin, end): |
|---|
| 1373 | self.begin = re.compile(begin) |
|---|
| 1374 | self.end = re.compile(end) |
|---|
| 1375 | self.in_shunt = False |
|---|
| 1376 | self.str = "" |
|---|
| 1377 | |
|---|
| 1378 | def __call__(self, line): |
|---|
| 1379 | if not self.in_shunt: |
|---|
| 1380 | if self.begin.match(line): |
|---|
| 1381 | self.in_shunt = True |
|---|
| 1382 | return True |
|---|
| 1383 | else: |
|---|
| 1384 | return False |
|---|
| 1385 | else: |
|---|
| 1386 | if self.end.match(line): |
|---|
| 1387 | self.in_shunt = False |
|---|
| 1388 | else: |
|---|
| 1389 | self.str += line |
|---|
| 1390 | return True |
|---|
| 1391 | |
|---|
| 1392 | def create_experiment(self, req, fid): |
|---|
| 1393 | """ |
|---|
| 1394 | The external interface to experiment creation called from the |
|---|
| 1395 | dispatcher. |
|---|
| 1396 | |
|---|
| 1397 | Creates a working directory, splits the incoming description using the |
|---|
| 1398 | splitter script and parses out the avrious subsections using the |
|---|
| 1399 | lcasses above. Once each sub-experiment is created, use pooled threads |
|---|
| 1400 | to instantiate them and start it all up. |
|---|
| 1401 | """ |
|---|
| 1402 | try: |
|---|
| 1403 | tmpdir = tempfile.mkdtemp(prefix="split-") |
|---|
| 1404 | except IOError: |
|---|
| 1405 | raise service_error(service_error.internal, "Cannot create tmp dir") |
|---|
| 1406 | |
|---|
| 1407 | gw_pubkey_base = "fed.%s.pub" % self.ssh_type |
|---|
| 1408 | gw_secretkey_base = "fed.%s" % self.ssh_type |
|---|
| 1409 | gw_pubkey = tmpdir + "/keys/" + gw_pubkey_base |
|---|
| 1410 | gw_secretkey = tmpdir + "/keys/" + gw_secretkey_base |
|---|
| 1411 | tclfile = tmpdir + "/experiment.tcl" |
|---|
| 1412 | tbparams = { } |
|---|
| 1413 | |
|---|
| 1414 | pid = "dummy" |
|---|
| 1415 | gid = "dummy" |
|---|
| 1416 | # XXX |
|---|
| 1417 | fail_soft = False |
|---|
| 1418 | |
|---|
| 1419 | try: |
|---|
| 1420 | os.mkdir(tmpdir+"/keys") |
|---|
| 1421 | except OSError: |
|---|
| 1422 | raise service_error(service_error.internal, |
|---|
| 1423 | "Can't make temporary dir") |
|---|
| 1424 | |
|---|
| 1425 | req = req.get('CreateRequestBody', None) |
|---|
| 1426 | if not req: |
|---|
| 1427 | raise service_error(service_error.req, |
|---|
| 1428 | "Bad request format (no CreateRequestBody)") |
|---|
| 1429 | # The tcl parser needs to read a file so put the content into that file |
|---|
| 1430 | descr=req.get('experimentdescription', None) |
|---|
| 1431 | if descr: |
|---|
| 1432 | file_content=descr.get('ns2description', None) |
|---|
| 1433 | if file_content: |
|---|
| 1434 | try: |
|---|
| 1435 | f = open(tclfile, 'w') |
|---|
| 1436 | f.write(file_content) |
|---|
| 1437 | f.close() |
|---|
| 1438 | except IOError: |
|---|
| 1439 | raise service_error(service_error.internal, |
|---|
| 1440 | "Cannot write temp experiment description") |
|---|
| 1441 | else: |
|---|
| 1442 | raise service_error(service_error.req, |
|---|
| 1443 | "Only ns2descriptions supported") |
|---|
| 1444 | else: |
|---|
| 1445 | raise service_error(service_error.req, "No experiment description") |
|---|
| 1446 | |
|---|
| 1447 | if req.has_key('experimentID') and \ |
|---|
| 1448 | req['experimentID'].has_key('localname'): |
|---|
| 1449 | eid = req['experimentID']['localname'] |
|---|
| 1450 | self.state_lock.acquire() |
|---|
| 1451 | while (self.state.has_key(eid)): |
|---|
| 1452 | eid += random.choice(string.ascii_letters) |
|---|
| 1453 | # To avoid another thread picking this localname |
|---|
| 1454 | self.state[eid] = "placeholder" |
|---|
| 1455 | self.state_lock.release() |
|---|
| 1456 | else: |
|---|
| 1457 | eid = self.exp_stem |
|---|
| 1458 | for i in range(0,5): |
|---|
| 1459 | eid += random.choice(string.ascii_letters) |
|---|
| 1460 | self.state_lock.acquire() |
|---|
| 1461 | while (self.state.has_key(eid)): |
|---|
| 1462 | eid = self.exp_stem |
|---|
| 1463 | for i in range(0,5): |
|---|
| 1464 | eid += random.choice(string.ascii_letters) |
|---|
| 1465 | # To avoid another thread picking this localname |
|---|
| 1466 | self.state[eid] = "placeholder" |
|---|
| 1467 | self.state_lock.release() |
|---|
| 1468 | |
|---|
| 1469 | try: |
|---|
| 1470 | self.generate_ssh_keys(gw_secretkey, self.ssh_type) |
|---|
| 1471 | except ValueError: |
|---|
| 1472 | raise service_error(service_error.server_config, |
|---|
| 1473 | "Bad key type (%s)" % self.ssh_type) |
|---|
| 1474 | |
|---|
| 1475 | user = req.get('user', None) |
|---|
| 1476 | if user == None: |
|---|
| 1477 | raise service_error(service_error.req, "No user") |
|---|
| 1478 | |
|---|
| 1479 | master = req.get('master', None) |
|---|
| 1480 | if master == None: |
|---|
| 1481 | raise service_error(service_error.req, "No master testbed label") |
|---|
| 1482 | |
|---|
| 1483 | if self.splitter_url: |
|---|
| 1484 | self.log.debug("Calling remote splitter at %s" % self.splitter_url) |
|---|
| 1485 | split_data = self.remote_splitter(self.splitter_url, file_content, |
|---|
| 1486 | master) |
|---|
| 1487 | else: |
|---|
| 1488 | tclcmd = [self.tclsh, self.tcl_splitter, '-s', '-x', |
|---|
| 1489 | str(self.muxmax), '-m', master] |
|---|
| 1490 | |
|---|
| 1491 | if self.fedkit: |
|---|
| 1492 | tclcmd.append('-k') |
|---|
| 1493 | |
|---|
| 1494 | tclcmd.extend([pid, gid, eid, tclfile]) |
|---|
| 1495 | |
|---|
| 1496 | self.log.debug("running local splitter %s", " ".join(tclcmd)) |
|---|
| 1497 | tclparser = Popen(tclcmd, stdout=PIPE) |
|---|
| 1498 | split_data = tclparser.stdout |
|---|
| 1499 | |
|---|
| 1500 | allocated = { } # Testbeds we can access |
|---|
| 1501 | started = { } # Testbeds where a sub-experiment started |
|---|
| 1502 | # successfully |
|---|
| 1503 | |
|---|
| 1504 | # Objects to parse the splitter output (defined above) |
|---|
| 1505 | parse_current_testbed = self.current_testbed(eid, tmpdir, self.fedkit) |
|---|
| 1506 | parse_allbeds = self.allbeds(self.get_access) |
|---|
| 1507 | parse_gateways = self.gateways(eid, master, tmpdir, |
|---|
| 1508 | gw_pubkey_base, gw_secretkey_base, self.copy_file, self.fedkit) |
|---|
| 1509 | parse_vtopo = self.shunt_to_string("^#\s+Begin\s+Vtopo", |
|---|
| 1510 | "^#\s+End\s+Vtopo") |
|---|
| 1511 | parse_hostnames = self.shunt_to_file("^#\s+Begin\s+hostnames", |
|---|
| 1512 | "^#\s+End\s+hostnames", tmpdir + "/hosts") |
|---|
| 1513 | parse_tarfiles = self.shunt_to_list("^#\s+Begin\s+tarfiles", |
|---|
| 1514 | "^#\s+End\s+tarfiles") |
|---|
| 1515 | parse_rpms = self.shunt_to_list("^#\s+Begin\s+rpms", |
|---|
| 1516 | "^#\s+End\s+rpms") |
|---|
| 1517 | |
|---|
| 1518 | # Worling on the split data |
|---|
| 1519 | for line in split_data: |
|---|
| 1520 | line = line.rstrip() |
|---|
| 1521 | if parse_current_testbed(line, master, allocated, tbparams): |
|---|
| 1522 | continue |
|---|
| 1523 | elif parse_allbeds(line, user, tbparams): |
|---|
| 1524 | continue |
|---|
| 1525 | elif parse_gateways(line, allocated, tbparams): |
|---|
| 1526 | continue |
|---|
| 1527 | elif parse_vtopo(line): |
|---|
| 1528 | continue |
|---|
| 1529 | elif parse_hostnames(line): |
|---|
| 1530 | continue |
|---|
| 1531 | elif parse_tarfiles(line): |
|---|
| 1532 | continue |
|---|
| 1533 | elif parse_rpms(line): |
|---|
| 1534 | continue |
|---|
| 1535 | else: |
|---|
| 1536 | raise service_error(service_error.internal, |
|---|
| 1537 | "Bad tcl parse? %s" % line) |
|---|
| 1538 | |
|---|
| 1539 | # Virtual topology and visualization |
|---|
| 1540 | vtopo = self.gentopo(parse_vtopo.str) |
|---|
| 1541 | if not vtopo: |
|---|
| 1542 | raise service_error(service_error.internal, |
|---|
| 1543 | "Failed to generate virtual topology") |
|---|
| 1544 | |
|---|
| 1545 | vis = self.genviz(vtopo) |
|---|
| 1546 | if not vis: |
|---|
| 1547 | raise service_error(service_error.internal, |
|---|
| 1548 | "Failed to generate visualization") |
|---|
| 1549 | |
|---|
| 1550 | # save federant information |
|---|
| 1551 | for k in allocated.keys(): |
|---|
| 1552 | tbparams[k]['federant'] = {\ |
|---|
| 1553 | 'name': [ { 'localname' : eid} ],\ |
|---|
| 1554 | 'emulab': tbparams[k]['emulab'],\ |
|---|
| 1555 | 'allocID' : tbparams[k]['allocID'],\ |
|---|
| 1556 | 'master' : k == master,\ |
|---|
| 1557 | } |
|---|
| 1558 | |
|---|
| 1559 | |
|---|
| 1560 | # Copy tarfiles and rpms needed at remote sites into a staging area |
|---|
| 1561 | try: |
|---|
| 1562 | if self.fedkit: |
|---|
| 1563 | parse_tarfiles.list.append(self.fedkit) |
|---|
| 1564 | for t in parse_tarfiles.list: |
|---|
| 1565 | if not os.path.exists("%s/tarfiles" % tmpdir): |
|---|
| 1566 | os.mkdir("%s/tarfiles" % tmpdir) |
|---|
| 1567 | self.copy_file(t, "%s/tarfiles/%s" % \ |
|---|
| 1568 | (tmpdir, os.path.basename(t))) |
|---|
| 1569 | for r in parse_rpms.list: |
|---|
| 1570 | if not os.path.exists("%s/rpms" % tmpdir): |
|---|
| 1571 | os.mkdir("%s/rpms" % tmpdir) |
|---|
| 1572 | self.copy_file(r, "%s/rpms/%s" % \ |
|---|
| 1573 | (tmpdir, os.path.basename(r))) |
|---|
| 1574 | except IOError, e: |
|---|
| 1575 | raise service_error(service_error.internal, |
|---|
| 1576 | "Cannot stage tarfile/rpm: %s" % e.strerror) |
|---|
| 1577 | |
|---|
| 1578 | thread_pool_info = self.thread_pool() |
|---|
| 1579 | threads = [ ] |
|---|
| 1580 | |
|---|
| 1581 | for tb in [ k for k in allocated.keys() if k != master]: |
|---|
| 1582 | # Wait until we have a free slot to start the next testbed load |
|---|
| 1583 | thread_pool_info.acquire() |
|---|
| 1584 | while thread_pool_info.started - \ |
|---|
| 1585 | thread_pool_info.terminated >= self.nthreads: |
|---|
| 1586 | thread_pool_info.wait() |
|---|
| 1587 | thread_pool_info.release() |
|---|
| 1588 | |
|---|
| 1589 | # Create and start a thread to start the segment, and save it to |
|---|
| 1590 | # get the return value later |
|---|
| 1591 | t = self.pooled_thread(target=self.start_segment, |
|---|
| 1592 | args=(tb, eid, tbparams, tmpdir, 0), name=tb, |
|---|
| 1593 | pdata=thread_pool_info, trace_file=self.trace_file) |
|---|
| 1594 | threads.append(t) |
|---|
| 1595 | t.start() |
|---|
| 1596 | |
|---|
| 1597 | # Wait until all finish (the first clause of the while is to make sure |
|---|
| 1598 | # one starts) |
|---|
| 1599 | thread_pool_info.acquire() |
|---|
| 1600 | while thread_pool_info.started == 0 or \ |
|---|
| 1601 | thread_pool_info.started > thread_pool_info.terminated: |
|---|
| 1602 | thread_pool_info.wait() |
|---|
| 1603 | thread_pool_info.release() |
|---|
| 1604 | |
|---|
| 1605 | # If none failed, start the master |
|---|
| 1606 | failed = [ t.getName() for t in threads if not t.rv ] |
|---|
| 1607 | |
|---|
| 1608 | if len(failed) == 0: |
|---|
| 1609 | if not self.start_segment(master, eid, tbparams, tmpdir): |
|---|
| 1610 | failed.append(master) |
|---|
| 1611 | |
|---|
| 1612 | succeeded = [tb for tb in allocated.keys() if tb not in failed] |
|---|
| 1613 | # If one failed clean up, unless fail_soft is set |
|---|
| 1614 | if failed: |
|---|
| 1615 | if not fail_soft: |
|---|
| 1616 | for tb in succeeded: |
|---|
| 1617 | self.stop_segment(tb, eid, tbparams) |
|---|
| 1618 | # Remove the placeholder |
|---|
| 1619 | self.state_lock.acquire() |
|---|
| 1620 | del self.state[eid] |
|---|
| 1621 | self.state_lock.release() |
|---|
| 1622 | |
|---|
| 1623 | raise service_error(service_error.federant, |
|---|
| 1624 | "Swap in failed on %s" % ",".join(failed)) |
|---|
| 1625 | else: |
|---|
| 1626 | self.log.info("[start_segment]: Experiment %s started" % eid) |
|---|
| 1627 | |
|---|
| 1628 | # Generate an ID for the experiment (slice) and a certificate that the |
|---|
| 1629 | # allocator can use to prove they own it. We'll ship it back through |
|---|
| 1630 | # the encrypted connection. |
|---|
| 1631 | (expid, expcert) = generate_fedid("test", dir=tmpdir, log=self.log) |
|---|
| 1632 | |
|---|
| 1633 | self.log.debug("[start_experiment]: removing %s" % tmpdir) |
|---|
| 1634 | |
|---|
| 1635 | # Walk up tmpdir, deleting as we go |
|---|
| 1636 | for path, dirs, files in os.walk(tmpdir, topdown=False): |
|---|
| 1637 | for f in files: |
|---|
| 1638 | os.remove(os.path.join(path, f)) |
|---|
| 1639 | for d in dirs: |
|---|
| 1640 | os.rmdir(os.path.join(path, d)) |
|---|
| 1641 | os.rmdir(tmpdir) |
|---|
| 1642 | |
|---|
| 1643 | # The deepcopy prevents the allocation ID and other binaries from being |
|---|
| 1644 | # translated into other formats |
|---|
| 1645 | resp = { 'federant' : [ copy.deepcopy(tbparams[tb]['federant']) \ |
|---|
| 1646 | for tb in tbparams.keys() \ |
|---|
| 1647 | if tbparams[tb].has_key('federant') ],\ |
|---|
| 1648 | 'vtopo': vtopo,\ |
|---|
| 1649 | 'vis' : vis, |
|---|
| 1650 | 'experimentID' : [\ |
|---|
| 1651 | { 'fedid': copy.copy(expid) }, \ |
|---|
| 1652 | { 'localname': eid },\ |
|---|
| 1653 | ],\ |
|---|
| 1654 | 'experimentAccess': { 'X509' : expcert },\ |
|---|
| 1655 | } |
|---|
| 1656 | |
|---|
| 1657 | # Insert the experiment into our state and update the disk copy |
|---|
| 1658 | self.state_lock.acquire() |
|---|
| 1659 | self.state[expid] = { 'federant' : [ tbparams[tb]['federant'] \ |
|---|
| 1660 | for tb in tbparams.keys() \ |
|---|
| 1661 | if tbparams[tb].has_key('federant') ],\ |
|---|
| 1662 | 'vtopo': vtopo,\ |
|---|
| 1663 | 'vis' : vis, |
|---|
| 1664 | 'experimentID' : [\ |
|---|
| 1665 | { 'fedid': expid }, { 'localname': eid },\ |
|---|
| 1666 | ],\ |
|---|
| 1667 | } |
|---|
| 1668 | self.state[eid] = self.state[expid] |
|---|
| 1669 | if self.state_filename: self.write_state() |
|---|
| 1670 | self.state_lock.release() |
|---|
| 1671 | |
|---|
| 1672 | if not failed: |
|---|
| 1673 | return resp |
|---|
| 1674 | else: |
|---|
| 1675 | raise service_error(service_error.partial, \ |
|---|
| 1676 | "Partial swap in on %s" % ",".join(succeeded)) |
|---|
| 1677 | |
|---|
| 1678 | |
|---|
| 1679 | def get_vtopo(self, req, fid): |
|---|
| 1680 | """ |
|---|
| 1681 | Return the stored virtual topology for this experiment |
|---|
| 1682 | """ |
|---|
| 1683 | rv = None |
|---|
| 1684 | |
|---|
| 1685 | req = req.get('VtopoRequestBody', None) |
|---|
| 1686 | if not req: |
|---|
| 1687 | raise service_error(service_error.req, |
|---|
| 1688 | "Bad request format (no VtopoRequestBody)") |
|---|
| 1689 | exp = req.get('experiment', None) |
|---|
| 1690 | if exp: |
|---|
| 1691 | if exp.has_key('fedid'): |
|---|
| 1692 | key = exp['fedid'] |
|---|
| 1693 | keytype = "fedid" |
|---|
| 1694 | elif exp.has_key('localname'): |
|---|
| 1695 | key = exp['localname'] |
|---|
| 1696 | keytype = "localname" |
|---|
| 1697 | else: |
|---|
| 1698 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1699 | else: |
|---|
| 1700 | raise service_error(service_error.req, "No request?") |
|---|
| 1701 | |
|---|
| 1702 | self.state_lock.acquire() |
|---|
| 1703 | if self.state.has_key(key): |
|---|
| 1704 | rv = { 'experiment' : {keytype: key },\ |
|---|
| 1705 | 'vtopo': self.state[key]['vtopo'],\ |
|---|
| 1706 | } |
|---|
| 1707 | self.state_lock.release() |
|---|
| 1708 | |
|---|
| 1709 | if rv: return rv |
|---|
| 1710 | else: raise service_error(service_error.req, "No such experiment") |
|---|
| 1711 | |
|---|
| 1712 | def get_vis(self, req, fid): |
|---|
| 1713 | """ |
|---|
| 1714 | Return the stored visualization for this experiment |
|---|
| 1715 | """ |
|---|
| 1716 | rv = None |
|---|
| 1717 | |
|---|
| 1718 | req = req.get('VisRequestBody', None) |
|---|
| 1719 | if not req: |
|---|
| 1720 | raise service_error(service_error.req, |
|---|
| 1721 | "Bad request format (no VisRequestBody)") |
|---|
| 1722 | exp = req.get('experiment', None) |
|---|
| 1723 | if exp: |
|---|
| 1724 | if exp.has_key('fedid'): |
|---|
| 1725 | key = exp['fedid'] |
|---|
| 1726 | keytype = "fedid" |
|---|
| 1727 | elif exp.has_key('localname'): |
|---|
| 1728 | key = exp['localname'] |
|---|
| 1729 | keytype = "localname" |
|---|
| 1730 | else: |
|---|
| 1731 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1732 | else: |
|---|
| 1733 | raise service_error(service_error.req, "No request?") |
|---|
| 1734 | |
|---|
| 1735 | self.state_lock.acquire() |
|---|
| 1736 | if self.state.has_key(key): |
|---|
| 1737 | rv = { 'experiment' : {keytype: key },\ |
|---|
| 1738 | 'vis': self.state[key]['vis'],\ |
|---|
| 1739 | } |
|---|
| 1740 | self.state_lock.release() |
|---|
| 1741 | |
|---|
| 1742 | if rv: return rv |
|---|
| 1743 | else: raise service_error(service_error.req, "No such experiment") |
|---|
| 1744 | |
|---|
| 1745 | def get_info(self, req, fid): |
|---|
| 1746 | """ |
|---|
| 1747 | Return all the stored info about this experiment |
|---|
| 1748 | """ |
|---|
| 1749 | rv = None |
|---|
| 1750 | |
|---|
| 1751 | req = req.get('InfoRequestBody', None) |
|---|
| 1752 | if not req: |
|---|
| 1753 | raise service_error(service_error.req, |
|---|
| 1754 | "Bad request format (no VisRequestBody)") |
|---|
| 1755 | exp = req.get('experiment', None) |
|---|
| 1756 | if exp: |
|---|
| 1757 | if exp.has_key('fedid'): |
|---|
| 1758 | key = exp['fedid'] |
|---|
| 1759 | keytype = "fedid" |
|---|
| 1760 | elif exp.has_key('localname'): |
|---|
| 1761 | key = exp['localname'] |
|---|
| 1762 | keytype = "localname" |
|---|
| 1763 | else: |
|---|
| 1764 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1765 | else: |
|---|
| 1766 | raise service_error(service_error.req, "No request?") |
|---|
| 1767 | |
|---|
| 1768 | # The state may be massaged by the service function that called |
|---|
| 1769 | # get_info (e.g., encoded for XMLRPC transport) so send a copy of the |
|---|
| 1770 | # state. |
|---|
| 1771 | self.state_lock.acquire() |
|---|
| 1772 | if self.state.has_key(key): |
|---|
| 1773 | rv = copy.deepcopy(self.state[key]) |
|---|
| 1774 | self.state_lock.release() |
|---|
| 1775 | |
|---|
| 1776 | if rv: return rv |
|---|
| 1777 | else: raise service_error(service_error.req, "No such experiment") |
|---|
| 1778 | |
|---|
| 1779 | |
|---|
| 1780 | def terminate_experiment(self, req, fid): |
|---|
| 1781 | """ |
|---|
| 1782 | Swap this experiment out on the federants and delete the shared |
|---|
| 1783 | information |
|---|
| 1784 | """ |
|---|
| 1785 | tbparams = { } |
|---|
| 1786 | req = req.get('TerminateRequestBody', None) |
|---|
| 1787 | if not req: |
|---|
| 1788 | raise service_error(service_error.req, |
|---|
| 1789 | "Bad request format (no TerminateRequestBody)") |
|---|
| 1790 | exp = req.get('experiment', None) |
|---|
| 1791 | if exp: |
|---|
| 1792 | if exp.has_key('fedid'): |
|---|
| 1793 | key = exp['fedid'] |
|---|
| 1794 | keytype = "fedid" |
|---|
| 1795 | elif exp.has_key('localname'): |
|---|
| 1796 | key = exp['localname'] |
|---|
| 1797 | keytype = "localname" |
|---|
| 1798 | else: |
|---|
| 1799 | raise service_error(service_error.req, "Unknown lookup type") |
|---|
| 1800 | else: |
|---|
| 1801 | raise service_error(service_error.req, "No request?") |
|---|
| 1802 | |
|---|
| 1803 | self.state_lock.acquire() |
|---|
| 1804 | fed_exp = self.state.get(key, None) |
|---|
| 1805 | |
|---|
| 1806 | if fed_exp: |
|---|
| 1807 | # This branch of the conditional holds the lock to generate a |
|---|
| 1808 | # consistent temporary tbparams variable to deallocate experiments. |
|---|
| 1809 | # It releases the lock to do the deallocations and reacquires it to |
|---|
| 1810 | # remove the experiment state when the termination is complete. |
|---|
| 1811 | ids = [] |
|---|
| 1812 | # experimentID is a list of dicts that are self-describing |
|---|
| 1813 | # identifiers. This finds all the fedids and localnames - the |
|---|
| 1814 | # keys of self.state - and puts them into ids. |
|---|
| 1815 | for id in fed_exp.get('experimentID', []): |
|---|
| 1816 | if id.has_key('fedid'): ids.append(id['fedid']) |
|---|
| 1817 | if id.has_key('localname'): ids.append(id['localname']) |
|---|
| 1818 | |
|---|
| 1819 | # Construct enough of the tbparams to make the stop_segment calls |
|---|
| 1820 | # work |
|---|
| 1821 | for fed in fed_exp['federant']: |
|---|
| 1822 | try: |
|---|
| 1823 | for e in fed['name']: |
|---|
| 1824 | eid = e.get('localname', None) |
|---|
| 1825 | if eid: break |
|---|
| 1826 | else: |
|---|
| 1827 | continue |
|---|
| 1828 | |
|---|
| 1829 | p = fed['emulab']['project'] |
|---|
| 1830 | |
|---|
| 1831 | project = p['name']['localname'] |
|---|
| 1832 | tb = p['testbed']['localname'] |
|---|
| 1833 | user = p['user'][0]['userID']['localname'] |
|---|
| 1834 | |
|---|
| 1835 | domain = fed['emulab']['domain'] |
|---|
| 1836 | host = "%s%s" % (fed['emulab']['ops'], domain) |
|---|
| 1837 | aid = fed['allocID'] |
|---|
| 1838 | except KeyError, e: |
|---|
| 1839 | continue |
|---|
| 1840 | tbparams[tb] = {\ |
|---|
| 1841 | 'user': user,\ |
|---|
| 1842 | 'domain': domain,\ |
|---|
| 1843 | 'project': project,\ |
|---|
| 1844 | 'host': host,\ |
|---|
| 1845 | 'eid': eid,\ |
|---|
| 1846 | 'aid': aid,\ |
|---|
| 1847 | } |
|---|
| 1848 | self.state_lock.release() |
|---|
| 1849 | |
|---|
| 1850 | # Stop everyone. |
|---|
| 1851 | for tb in tbparams.keys(): |
|---|
| 1852 | self.stop_segment(tb, tbparams[tb]['eid'], tbparams) |
|---|
| 1853 | |
|---|
| 1854 | # release the allocations |
|---|
| 1855 | for tb in tbparams.keys(): |
|---|
| 1856 | self.release_access(tb, tbparams[tb]['aid']) |
|---|
| 1857 | |
|---|
| 1858 | # Remove the terminated experiment |
|---|
| 1859 | self.state_lock.acquire() |
|---|
| 1860 | for id in ids: |
|---|
| 1861 | if self.state.has_key(id): del self.state[id] |
|---|
| 1862 | |
|---|
| 1863 | if self.state_filename: self.write_state() |
|---|
| 1864 | self.state_lock.release() |
|---|
| 1865 | |
|---|
| 1866 | return { 'experiment': exp } |
|---|
| 1867 | else: |
|---|
| 1868 | # Don't forget to release the lock |
|---|
| 1869 | self.state_lock.release() |
|---|
| 1870 | raise service_error(service_error.req, "No saved state") |
|---|
