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 sm_chan = GeniClient(sm_url, key_file, cert_file)
78 sm_chan = GeniClient(sm_url, key_file, cert_file)
79 reg_chan = 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
248 # Generate command line parser
249 parser = OptionParser(usage="sfi [options] command [command_options] [command_args]",
250 description="Commands: list,show,remove,add,update,nodes,slices,resources,create,delete,start,stop,reset")
251 parser.add_option("-r", "--registry", dest="registry",
252 help="root registry", metavar="URL", default=None)
253 parser.add_option("-s", "--slicemgr", dest="sm",
254 help="slice manager", metavar="URL", default=None)
255 parser.add_option("-d", "--dir", dest="dir",
256 help="working directory", metavar="PATH", default = sfi_dir)
257 parser.add_option("-u", "--user", dest="user",
258 help="user name", metavar="USER_HRN", default=None)
259 parser.add_option("-a", "--auth", dest="auth",
260 help="authority name", metavar="AUTH_HRN", default=None)
261 parser.add_option("-v", "--verbose",
262 action="store_true", dest="verbose", default=False,
264 parser.disable_interspersed_args()
265 (options, args) = parser.parse_args()
267 (cmd_opts, cmd_args) = create_cmd_parser(command).parse_args(args[1:])
268 verbose = options.verbose
270 print options.registry, options.sm, options.dir, options.verbose,\
271 options.user, options.auth
273 if command in ("nodes", "resources"):
274 print cmd_opts.format
275 elif command in ("list","show","remove"):
281 # Dispatch to selected command
283 globals()[command](cmd_opts, cmd_args)
285 print "Command not found:", command
290 # Following functions implement the commands
292 # Registry-related commands
295 # list entires in named authority registry
296 def list(opts, args):
298 user_cred = get_user_cred()
299 result = reg_chan.list(user_cred, args[0])
300 display_record(opts.type, results)
303 # show named registry record
304 def show(opts, args):
306 user_cred = get_user_cred()
307 result = reg_chan.resolve(user_cred, args[0])
308 display_record(opts.type, results)
311 # removed named registry record
312 # - have to first retrieve the record to be removed
313 def remove(opts, args):
315 auth_cred = get_auth_cred()
316 results = reg_chan.resolve(auth_cred, args[0])
317 record = filter_record(opts.type, results)
318 return reg_chan.remove(auth_cred, record)
320 # add named registry record
323 auth_cred = get_auth_cred()
324 rec_file = get_record_file(args[1])
325 with open(rec_file) as f:
327 return reg_chan.register(auth_cred, record)
329 # update named registry entry
330 def update(opts, args):
332 user_cred = get_user_cred()
333 rec_file = get_record_file(args[1])
334 with open(rec_file) as f:
336 return reg_chan.update(user_cred, record)
339 # Slice-related commands
342 # list available nodes
343 def nodes(opts, args):
345 user_cred = get_user_cred()
350 result = sm_chan.list_nodes(user_cred, context)
351 display_rspec(opts.format, result)
354 # list instantiated slices
355 def slices(opts, args):
357 user_cred = get_user_cred()
358 result = sm_chan.list_slices(user_cred)
359 display_rspec(opts.format, results)
362 # show rspec for named slice
363 def resources(opts, args):
365 slice_cred = get_slice_cred(args[0])
366 print "resources:", opts.format, args[0], sm_chan
367 result = sm_chan.get_resources(slice_cred, args[0])
368 display_rspec(opts.format, result)
371 # created named slice with given rspec
372 def create(opts, args):
374 slice_cred = get_slice_cred(args[0])
375 rspec_file = get_rspec_file(args[1])
376 with open(rspec_file) as f:
378 return sm_chan.instantiate(slice_cred, rspec)
381 def delete(opts, args):
383 slice_cred = get_slice_cred(args[0])
384 return sm_chan.delete_slice(slice_cred)
387 def start(opts, args):
389 slice_cred = get_slice_cred(args[0])
390 return sm_chan.start_slice(slice_cred)
393 def stop(opts, args):
395 slice_cred = get_slice_cred(args[0])
396 return sm_chan.stop_slice(slice_cred)
399 def reset(opts, args):
401 slice_cred = get_slice_cred(args[0])
402 return sm_chan.reset_slice(slice_cred)
406 # Display and Filter RSpecs and Records
410 def display_rspec(format, rspec):
411 print "display rspec"
414 def display_record(type, record):
415 rec = filter_record(type, record)
416 print "display record"
419 def filter_record(type, record):
420 print "filter record"
424 if __name__=="__main__":