2 from __future__ import with_statement
4 # sfi -- slice-based facility interface
8 from optparse import OptionParser
9 from util.cert import Keypair, Certificate
10 from util.credential import Credential
11 from util.geniclient import GeniClient
13 sfi_dir = os.path.expanduser("~/.sfi/")
21 # Establish Connection to SliceMgr and Registry Servers
23 def set_servers(options):
30 if (options.sm is not None):
32 elif ("SFI_SM" in os.environ):
33 sm_url = os.environ["SFI_SM"]
35 print "No Known Slice Manager"
39 if (options.registry is not None):
40 reg_url = options.registry
41 elif ("SFI_REGISTRY" in os.environ):
42 reg_url = os.environ["SFI_REGISTRY"]
44 print "No Known Registry Server"
48 print "Contacting Slice Manager at:", sm_url
49 print "Contacting Registry at:", registry_url
52 if (options.user is not None):
54 elif ("SFI_USER" in os.environ):
55 user = os.environ["SFI_USER"]
57 print "No Known User Name"
61 if (options.auth is not None):
62 authority = options.auth
63 elif ("SFI_AUTH" in os.environ):
64 authority = os.environ["SFI_AUTH"]
68 # Get key and certificate
69 key_file = get_key_file()
70 cert_file = get_cert_file(key_file)
72 # Establish connection to server(s)
73 # SliceMgr and Registry may be available on the same server
74 if (sm_url == registry_url):
75 slicemgr = GeniClient(sm_url, key_file, cert_file)
78 slicemgr = GeniClient(sm_url, key_file, cert_file)
79 registry = GeniClient(registry_url, key_file, cert_file)
83 # Get various credential and spec files
85 # Establishes limiting conventions
86 # - conflates MAs and SAs
87 # - assumes last token in slice name is unique
89 # Bootstraps credentials
90 # - bootstrap user credential from self-signed certificate
91 # - bootstrap authority credential from user credential
92 # - bootstrap slice credential from user credential
96 parts = name.split(".")
100 file = os.path.join(sfi_dir, get_leaf(user) + ".pkey")
101 if (os.path.isfile(file)):
104 print "Key file", file, "does not exist"
108 def get_cert_file(key_file):
111 file = os.path.join(sfi_dir, get_leaf(user) + ".cert")
112 if (os.path.isfile(file)):
115 k = Keypair(filename = key_file)
116 cert = Certificate(subject=user)
118 cert.set_issuer(k, user)
121 print "Writing self-signed certificate to", file
122 cert.save_to_file(file)
128 file = os.path.join(sfi_dir, get_leaf(user) + ".cred")
129 if (os.path.isfile(file)):
130 user_cred = Credential(filename=file)
133 # bootstrap user credential
134 user_cred = get_credential(None, "user", user)
136 user_cred.save_to_file(file, save_parents=True)
138 print "Writing user credential to", file
141 print "Failed to get user credential"
147 file = os.path.join(sfi_dir, "authority.cred")
148 if (os.path.isfile(file)):
149 auth_cred = Credential(filename=file)
152 # bootstrap authority credential from user credential
153 user_cred = get_user_cred()
154 auth_cred = get_credential(user_cred, "sa", authority)
156 auth_cred.save_to_file(file, save_parents=True)
158 print "Writing authority credential to", file
161 print "Failed to get authority credential"
164 def get_slice_cred(name):
165 file = os.path.join(sfi_dir, "slice_" + get_leaf(name) + ".cred")
166 if (os.path.isfile(file)):
167 slice_cred = Credential(filename=file)
170 # bootstrap slice credential from user credential
171 user_cred = get_user_cred()
172 slice_cred = get_credential(user_cred, "slice", name)
174 slice_cred.save_to_file(file, save_parents=True)
176 print "Writing slice credential to", file
179 print "Failed to get slice credential"
182 def get_rspec_file(rspec):
183 if (os.path.isabs(rspec)):
186 file = os.path.join(sfi_dir, rspec)
187 if (os.path.isfile(file)):
190 print "No such rspec file"
193 def get_record_file(record):
194 if (os.path.isabs(record)):
197 file = os.path.join(sfi_dir, record)
198 if (os.path.isfile(file)):
201 print "No such registry record file"
205 # Generate sub-command parser
207 def create_cmd_parser(command):
208 cmdargs = {"list": "name",
211 "add": "name record",
212 "update": "name record",
216 "create": "name rspec",
222 if command not in cmdargs:
223 print "Invalid command\n"
224 print "Commands:list,show,remove,add,update,nodes,slices,resources,create,delete,start,stop,reset"
227 parser = OptionParser(usage="sfi [sfi_options] %s [options] %s" \
228 % (command, cmdargs[command]))
229 if command in ("nodes", "resources"):
230 parser.add_option("-f", "--format", dest="format",type="choice",
231 help="output format (dns|ip|hrn|rspec)",default="rspec",
232 choices=("dns","ip","hrn","rspec"))
233 elif command in ("list", "show", "remove"):
234 parser.add_option("-t", "--type", dest="type",type="choice",
235 help="type filter (user|slice|sa|ma|node|aggregate)",
236 choices=("user","slice","sa","ma","node","aggregate", "all"),
241 # Main: parse arguments and dispatch to command
246 # Generate command line parser
247 parser = OptionParser(usage="sfi [options] command [command_options] [command_args]",
248 description="Commands: list,show,remove,add,update,nodes,slices,resources,create,delete,start,stop,reset")
249 parser.add_option("-r", "--registry", dest="registry",
250 help="root registry", metavar="URL", default=None)
251 parser.add_option("-s", "--slicemgr", dest="sm",
252 help="slice manager", metavar="URL", default=None)
253 parser.add_option("-d", "--dir", dest="dir",
254 help="working directory", metavar="PATH", default = sfi_dir)
255 parser.add_option("-u", "--user", dest="user",
256 help="user name", metavar="HRN", default=None)
257 parser.add_option("-a", "--auth", dest="auth",
258 help="authority name", metavar="HRN", default=None)
259 parser.add_option("-v", "--verbose",
260 action="store_true", dest="verbose", default=False,
262 parser.disable_interspersed_args()
263 (options, args) = parser.parse_args()
265 (cmd_opts, cmd_args) = create_cmd_parser(command).parse_args(args[1:])
266 verbose = options.verbose
268 print options.registry, options.sm, options.dir, options.verbose,\
269 options.user, options.auth
271 if command in ("nodes", "resources"):
272 print cmd_opts.format
273 elif command in ("list","show","remove"):
279 # Dispatch to selected command
281 globals()[command](cmd_opts, cmd_args)
283 print "Command not found:", command
288 # Following functions implement the commands
290 # Registry-related commands
293 # list entires in named authority registry
294 def list(opts, args):
296 user_cred = get_user_cred()
297 result = registry.list(user_cred, args[0])
298 display_record(opts.type, results)
301 # show named registry record
302 def show(opts, args):
304 user_cred = get_user_cred()
305 result = reg_chan.resolve(user_cred, args[0])
306 display_record(opts.type, results)
309 # removed named registry record
310 # - have to first retrieve the record to be removed
311 def remove(opts, args):
313 auth_cred = get_auth_cred()
314 results = registry.resolve(auth_cred, args[0])
315 record = filter_record(opts.type, results)
316 return registry.remove(auth_cred, record)
318 # add named registry record
321 auth_cred = get_auth_cred()
322 rec_file = get_record_file(args[1])
323 with open(rec_file) as f:
325 return registry.register(auth_cred, record)
327 # update named registry entry
328 def update(opts, args):
330 user_cred = get_user_cred()
331 rec_file = get_record_file(args[1])
332 with open(rec_file) as f:
334 return registry.update(user_cred, record)
337 # Slice-related commands
340 # list available nodes
341 def nodes(opts, args):
343 user_cred = get_user_cred()
348 result = slicemgr.list_nodes(user_cred, context)
349 display_rspec(opts.format, result)
352 # list instantiated slices
353 def slices(opts, args):
355 user_cred = get_user_cred()
356 result = slicemgr.list_slices(user_cred)
357 display_rspec(opts.format, results)
360 # show rspec for named slice
361 def resources(opts, args):
363 slice_cred = get_slice_cred(args[0])
364 result = slicemgr.get_resources(slice_cred, args[0])
365 display_rspec(opts.format, result)
368 # created named slice with given rspec
369 def create(opts, args):
371 slice_cred = get_slice_cred(args[0])
372 rspec_file = get_rspec_file(args[1])
373 with open(rspec_file) as f:
375 return slicemgr.instantiate(slice_cred, rspec)
378 def delete(opts, args):
380 slice_cred = get_slice_cred(args[0])
381 return slicemgr.delete_slice(slice_cred)
384 def start(opts, args):
386 slice_cred = get_slice_cred(args[0])
387 return slicemgr.start_slice(slice_cred)
390 def stop(opts, args):
392 slice_cred = get_slice_cred(args[0])
393 return slicemgr.stop_slice(slice_cred)
396 def reset(opts, args):
398 slice_cred = get_slice_cred(args[0])
399 return slicemgr.reset_slice(slice_cred)
403 # Display and Filter RSpecs and Records
404 # - to be replace by EMF-generated routines
408 def display_rspec(format, rspec):
409 print "display rspec"
412 def display_record(type, record):
413 rec = filter_record(type, record)
414 print "display record"
417 def filter_record(type, record):
418 print "filter record"
422 if __name__=="__main__":