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.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
29 component_port = 12346
34 from optparse import OptionParser
36 from sfa.util.sfalogging import logger
37 from sfa.util.xrn import get_authority, hrn_to_urn
38 from sfa.util.config import Config
39 from sfa.trust.gid import GID
40 from sfa.trust.trustedroots import TrustedRoots
41 from sfa.trust.certificate import Keypair, Certificate
42 from sfa.trust.hierarchy import Hierarchy
43 from sfa.trust.gid import GID
44 from sfa.server.sfaapi import SfaApi
45 from sfa.server.registry import Registries
46 from sfa.server.aggregate import Aggregates
47 from sfa.client.return_value import ReturnValue
52 Daemonize the current process.
53 after http://www.erlenstar.demon.co.uk/unix/faq_2.html
61 devnull = os.open(os.devnull, os.O_RDWR)
63 # xxx fixme - this is just to make sure that nothing gets stupidly lost -
65 logdir = '/var/log/httpd'
66 # when installed in standalone we might not have httpd installed
67 if not os.path.isdir(logdir):
68 os.mkdir('/var/log/httpd')
69 crashlog = os.open('%s/sfa_access_log' % logdir,
70 os.O_RDWR | os.O_APPEND | os.O_CREAT, 0644)
75 def install_peer_certs(server_key_file, server_cert_file):
77 Attempt to install missing trusted gids and db records for
78 our federated interfaces
80 # Attempt to get any missing peer gids
81 # There should be a gid file in /etc/sfa/trusted_roots for every
82 # peer registry found in in the registries.xml config file. If there
83 # are any missing gids, request a new one from the peer registry.
84 api = SfaApi(key_file=server_key_file, cert_file=server_cert_file)
85 registries = Registries()
86 aggregates = Aggregates()
87 interfaces = dict(registries.items() + aggregates.items())
88 gids_current = api.auth.trusted_cert_list
89 hrns_current = [gid.get_hrn() for gid in gids_current]
90 hrns_expected = set([hrn for hrn in interfaces])
91 new_hrns = set(hrns_expected).difference(hrns_current)
92 #gids = self.get_peer_gids(new_hrns) + gids_current
97 trusted_certs_dir = api.config.get_trustedroots_dir()
98 for new_hrn in new_hrns:
101 # the gid for this interface should already be installed
102 if new_hrn == api.config.SFA_INTERFACE_HRN:
105 # get gid from the registry
106 url = interfaces[new_hrn].get_url()
107 interface = interfaces[new_hrn].server_proxy(
108 server_key_file, server_cert_file, timeout=30)
109 # skip non sfa aggregates
110 server_version = api.get_cached_server_version(interface)
111 if 'sfa' not in server_version:
113 "get_trusted_certs: skipping non sfa aggregate: %s" % new_hrn)
116 trusted_gids = ReturnValue.get_value(interface.get_trusted_certs())
118 # the gid we want should be the first one in the list,
120 for trusted_gid in trusted_gids:
122 message = "interface: %s\t" % (api.interface)
123 message += "unable to install trusted gid for %s" % \
125 gid = GID(string=trusted_gid)
126 peer_gids.append(gid)
127 if gid.get_hrn() == new_hrn:
128 gid_filename = os.path.join(
129 trusted_certs_dir, '%s.gid' % new_hrn)
130 gid.save_to_file(gid_filename, save_parents=True)
131 message = "installed trusted cert for %s" % new_hrn
133 api.logger.info(message)
135 message = "interface: %s\tunable to install trusted gid for %s" % \
136 (api.interface, new_hrn)
137 api.logger.log_exc(message)
138 # doesnt matter witch one
139 update_cert_records(peer_gids)
142 def update_cert_records(gids):
144 Make sure there is a record in the registry for the specified gids.
145 Removes old records from the db.
147 # import db stuff here here so this module can be loaded by PlcComponentApi
148 from sfa.storage.alchemy import global_dbsession
149 from sfa.storage.model import RegRecord
150 dbsession = global_dbsession
153 # get records that actually exist in the db
154 gid_urns = [gid.get_urn() for gid in gids]
155 hrns_expected = [gid.get_hrn() for gid in gids]
156 records_found = dbsession.query(RegRecord).\
157 filter_by(pointer=-1).filter(RegRecord.hrn.in_(hrns_expected)).all()
160 for record in records_found:
161 if record.hrn not in hrns_expected and \
162 record.hrn != self.api.config.SFA_INTERFACE_HRN:
163 dbsession.delete(record)
165 # TODO: store urn in the db so we do this in 1 query
167 hrn, type = gid.get_hrn(), gid.get_type()
168 record = dbsession.query(RegRecord).filter_by(
169 hrn=hrn, type=type, pointer=-1).first()
174 'authority': get_authority(hrn),
175 'gid': gid.save_to_string(save_parents=True),
177 dbsession.add(record)
182 # Generate command line parser
183 parser = OptionParser(usage="sfa-start.py [options]")
184 parser.add_option("-r", "--registry", dest="registry", action="store_true",
185 help="run registry server", default=False)
186 parser.add_option("-s", "--slicemgr", dest="sm", action="store_true",
187 help="run slice manager", default=False)
188 parser.add_option("-a", "--aggregate", dest="am", action="store_true",
189 help="run aggregate manager", default=False)
190 parser.add_option("-c", "--component", dest="cm", action="store_true",
191 help="run component server", default=False)
192 parser.add_option("-t", "--trusted-certs",
193 dest="trusted_certs", action="store_true",
194 help="refresh trusted certs", default=False)
195 parser.add_option("-d", "--daemon", dest="daemon", action="store_true",
196 help="Run as daemon.", default=False)
197 (options, args) = parser.parse_args()
200 logger.setLevelFromOptVerbose(config.SFA_API_LOGLEVEL)
202 # ge the server's key and cert
203 hierarchy = Hierarchy()
204 auth_info = hierarchy.get_interface_auth_info()
205 server_key_file = auth_info.get_privkey_filename()
206 server_cert_file = auth_info.get_gid_filename()
208 # ensure interface cert is present in trusted roots dir
209 trusted_roots = TrustedRoots(config.get_trustedroots_dir())
210 trusted_roots.add_gid(GID(filename=server_cert_file))
214 if options.trusted_certs:
215 install_peer_certs(server_key_file, server_cert_file)
217 # start registry server
218 if (options.registry):
219 from sfa.server.registry import Registry
220 r = Registry("", config.SFA_REGISTRY_PORT,
221 server_key_file, server_cert_file)
225 from sfa.server.aggregate import Aggregate
226 a = Aggregate("", config.SFA_AGGREGATE_PORT,
227 server_key_file, server_cert_file)
230 # start slice manager
232 from sfa.server.slicemgr import SliceMgr
233 s = SliceMgr("", config.SFA_SM_PORT, server_key_file, server_cert_file)
237 from sfa.server.component import Component
238 c = Component("", config.component_port,
239 server_key_file, server_cert_file)
240 # c = Component("", config.SFA_COMPONENT_PORT, server_key_file, server_cert_file)
243 if __name__ == "__main__":
247 logger.log_exc_critical("SFA server is exiting")