3 # PlanetLab SFA implementation
5 # This implements the SFA Registry and Slice Interfaces on PLC.
6 # Depending on command line options, it starts some combination of a
7 # Registry, an Aggregate Manager, and a Slice Manager.
9 # There are several items that need to be done before starting the servers.
11 # NOTE: Many configuration settings, including the PLC maintenance account
12 # credentials, URI of the PLCAPI, and PLC DB URI and admin credentials are initialized
13 # from your MyPLC configuration (/etc/planetlab/plc_config*). Please make sure this information
14 # is up to date and accurate.
16 # 1) Import the existing planetlab database, creating the
17 # appropriate SFA records. This is done by running the "sfa-import-plc.py" tool.
19 # 2) Create a "trusted_roots" directory and place the certificate of the root
20 # authority in that directory. Given the defaults in sfa-import-plc.py, this
21 # certificate would be named "planetlab.gid". For example,
23 # mkdir trusted_roots; cp authorities/planetlab.gid trusted_roots/
25 # TODO: Can all three servers use the same "registry" certificate?
28 ### xxx todo not in the config yet
33 from optparse import OptionParser
35 from sfa.util.sfalogging import logger
36 from sfa.util.xrn import get_authority, hrn_to_urn
37 from sfa.util.config import Config
38 from sfa.trust.gid import GID
39 from sfa.trust.trustedroots import TrustedRoots
40 from sfa.trust.certificate import Keypair, Certificate
41 from sfa.trust.hierarchy import Hierarchy
42 from sfa.trust.gid import GID
43 from sfa.server.sfaapi import SfaApi
44 from sfa.server.registry import Registries
45 from sfa.server.aggregate import Aggregates
46 from sfa.client.return_value import ReturnValue
48 # after http://www.erlenstar.demon.co.uk/unix/faq_2.html
50 """Daemonize the current process."""
51 if os.fork() != 0: os._exit(0)
53 if os.fork() != 0: os._exit(0)
55 devnull = os.open(os.devnull, os.O_RDWR)
57 # xxx fixme - this is just to make sure that nothing gets stupidly lost - should use devnull
58 logdir='/var/log/httpd'
59 # when installed in standalone we might not have httpd installed
60 if not os.path.isdir(logdir): os.mkdir('/var/log/httpd')
61 crashlog = os.open('%s/sfa_access_log'%logdir, os.O_RDWR | os.O_APPEND | os.O_CREAT, 0644)
66 def install_peer_certs(server_key_file, server_cert_file):
68 Attempt to install missing trusted gids and db records for
69 our federated interfaces
71 # Attempt to get any missing peer gids
72 # There should be a gid file in /etc/sfa/trusted_roots for every
73 # peer registry found in in the registries.xml config file. If there
74 # are any missing gids, request a new one from the peer registry.
75 api = SfaApi(key_file = server_key_file, cert_file = server_cert_file)
76 registries = Registries()
77 aggregates = Aggregates()
78 interfaces = dict(registries.items() + aggregates.items())
79 gids_current = api.auth.trusted_cert_list
80 hrns_current = [gid.get_hrn() for gid in gids_current]
81 hrns_expected = set([hrn for hrn in interfaces])
82 new_hrns = set(hrns_expected).difference(hrns_current)
83 #gids = self.get_peer_gids(new_hrns) + gids_current
88 trusted_certs_dir = api.config.get_trustedroots_dir()
89 for new_hrn in new_hrns:
90 if not new_hrn: continue
91 # the gid for this interface should already be installed
92 if new_hrn == api.config.SFA_INTERFACE_HRN: continue
94 # get gid from the registry
95 url = interfaces[new_hrn].get_url()
96 interface = interfaces[new_hrn].server_proxy(server_key_file, server_cert_file, timeout=30)
97 # skip non sfa aggregates
98 server_version = api.get_cached_server_version(interface)
99 if 'sfa' not in server_version:
100 logger.info("get_trusted_certs: skipping non sfa aggregate: %s" % new_hrn)
103 trusted_gids = ReturnValue.get_value(interface.get_trusted_certs())
105 # the gid we want should be the first one in the list,
107 for trusted_gid in trusted_gids:
109 message = "interface: %s\t" % (api.interface)
110 message += "unable to install trusted gid for %s" % \
112 gid = GID(string=trusted_gid)
113 peer_gids.append(gid)
114 if gid.get_hrn() == new_hrn:
115 gid_filename = os.path.join(trusted_certs_dir, '%s.gid' % new_hrn)
116 gid.save_to_file(gid_filename, save_parents=True)
117 message = "installed trusted cert for %s" % new_hrn
119 api.logger.info(message)
121 message = "interface: %s\tunable to install trusted gid for %s" % \
122 (api.interface, new_hrn)
123 api.logger.log_exc(message)
124 # doesnt matter witch one
125 update_cert_records(peer_gids)
127 def update_cert_records(gids):
129 Make sure there is a record in the registry for the specified gids.
130 Removes old records from the db.
132 # import SfaTable here so this module can be loaded by PlcComponentApi
133 from sfa.storage.table import SfaTable
134 from sfa.storage.record import SfaRecord
138 # get records that actually exist in the db
139 gid_urns = [gid.get_urn() for gid in gids]
140 hrns_expected = [gid.get_hrn() for gid in gids]
141 records_found = table.find({'hrn': hrns_expected, 'pointer': -1})
144 for record in records_found:
145 if record['hrn'] not in hrns_expected and \
146 record['hrn'] != self.api.config.SFA_INTERFACE_HRN:
149 # TODO: store urn in the db so we do this in 1 query
151 hrn, type = gid.get_hrn(), gid.get_type()
152 record = table.find({'hrn': hrn, 'type': type, 'pointer': -1})
155 'hrn': hrn, 'type': type, 'pointer': -1,
156 'authority': get_authority(hrn),
157 'gid': gid.save_to_string(save_parents=True),
159 record = SfaRecord(dict=record)
163 # Generate command line parser
164 parser = OptionParser(usage="sfa-start.py [options]")
165 parser.add_option("-r", "--registry", dest="registry", action="store_true",
166 help="run registry server", default=False)
167 parser.add_option("-s", "--slicemgr", dest="sm", action="store_true",
168 help="run slice manager", default=False)
169 parser.add_option("-a", "--aggregate", dest="am", action="store_true",
170 help="run aggregate manager", default=False)
171 parser.add_option("-c", "--component", dest="cm", action="store_true",
172 help="run component server", default=False)
173 parser.add_option("-t", "--trusted-certs", dest="trusted_certs", action="store_true",
174 help="refresh trusted certs", default=False)
175 parser.add_option("-d", "--daemon", dest="daemon", action="store_true",
176 help="Run as daemon.", default=False)
177 (options, args) = parser.parse_args()
180 logger.setLevelFromOptVerbose(config.SFA_API_LOGLEVEL)
183 # ge the server's key and cert
184 hierarchy = Hierarchy()
185 auth_info = hierarchy.get_interface_auth_info()
186 server_key_file = auth_info.get_privkey_filename()
187 server_cert_file = auth_info.get_gid_filename()
189 # ensure interface cert is present in trusted roots dir
190 trusted_roots = TrustedRoots(config.get_trustedroots_dir())
191 trusted_roots.add_gid(GID(filename=server_cert_file))
192 if (options.daemon): daemon()
194 if options.trusted_certs:
195 install_peer_certs(server_key_file, server_cert_file)
197 # start registry server
198 if (options.registry):
199 from sfa.server.registry import Registry
200 r = Registry("", config.SFA_REGISTRY_PORT, server_key_file, server_cert_file)
204 from sfa.server.aggregate import Aggregate
205 a = Aggregate("", config.SFA_AGGREGATE_PORT, server_key_file, server_cert_file)
208 # start slice manager
210 from sfa.server.slicemgr import SliceMgr
211 s = SliceMgr("", config.SFA_SM_PORT, server_key_file, server_cert_file)
215 from sfa.server.component import Component
216 c = Component("", config.component_port, server_key_file, server_cert_file)
217 # c = Component("", config.SFA_COMPONENT_PORT, server_key_file, server_cert_file)
220 if __name__ == "__main__":
224 logger.log_exc_critical("SFA server is exiting")