8 # This wrapper implements the SFA Registry and Slice Interfaces on PLC.
9 # Depending on command line options, it starts some combination of a
10 # Registry, an Aggregate Manager, and a Slice Manager.
12 # There are several items that need to be done before starting the wrapper
15 # NOTE: Many configuration settings, including the PLC maintenance account
16 # credentials, URI of the PLCAPI, and PLC DB URI and admin credentials are initialized
17 # from your MyPLC configuration (/etc/planetlab/plc_config*). Please make sure this information
18 # is up to date and accurate.
20 # 1) Import the existing planetlab database, creating the
21 # appropriate SFA records. This is done by running the "sfa-import-plc.py" tool.
23 # 2) Create a "trusted_roots" directory and place the certificate of the root
24 # authority in that directory. Given the defaults in sfa-import-plc.py, this
25 # certificate would be named "planetlab.gid". For example,
27 # mkdir trusted_roots; cp authorities/planetlab.gid trusted_roots/
29 # TODO: Can all three servers use the same "registry" certificate?
32 # TCP ports for the three servers
39 from optparse import OptionParser
42 from sfa.util.sfalogging import sfa_logger
43 from sfa.trust.trustedroot import TrustedRootList
44 from sfa.trust.certificate import Keypair, Certificate
45 from sfa.trust.hierarchy import Hierarchy
46 from sfa.util.config import Config
47 from sfa.util.report import trace
48 from sfa.plc.api import SfaAPI
49 from sfa.server.registry import Registries
50 from sfa.server.aggregate import Aggregates
52 # after http://www.erlenstar.demon.co.uk/unix/faq_2.html
54 """Daemonize the current process."""
55 if os.fork() != 0: os._exit(0)
57 if os.fork() != 0: os._exit(0)
59 devnull = os.open(os.devnull, os.O_RDWR)
61 # xxx fixme - this is just to make sure that nothing gets stupidly lost - should use devnull
62 crashlog = os.open('/var/log/httpd/sfa_access_log', os.O_RDWR | os.O_APPEND | os.O_CREAT, 0644)
66 def init_server_key(server_key_file, server_cert_file, config, hierarchy):
68 subject = config.SFA_INTERFACE_HRN
69 # check if the server's private key exists. If it doesnt,
70 # get the right one from the authorities directory. If it cant be
71 # found in the authorities directory, generate a random one
72 if not os.path.exists(server_key_file):
73 hrn = config.SFA_INTERFACE_HRN.lower()
74 hrn_parts = hrn.split(".")
76 pkey_filename = hrn+".pkey"
78 # sub authority's have "." in their hrn. This must
79 # be converted to os.path separator
80 if len(hrn_parts) > 0:
81 rel_key_path = hrn.replace(".", os.sep)
82 pkey_filename= hrn_parts[-1]+".pkey"
84 key_file = os.sep.join([hierarchy.basedir, rel_key_path, pkey_filename])
85 if not os.path.exists(key_file):
86 # if it doesnt exist then this is probably a fresh interface
87 # with no records. Generate a random keypair for now
88 trace("server's public key not found in %s" % key_file)
89 trace("generating a random server key pair")
90 key = Keypair(create=True)
91 key.save_to_file(server_key_file)
92 cert = Certificate(subject=subject)
93 cert.set_issuer(key=key, subject=subject)
96 cert.save_to_file(server_cert_file, save_parents=True)
99 # the pkey was found in the authorites directory. lets
100 # copy it to where the server key should be and generate
102 key = Keypair(filename=key_file)
103 key.save_to_file(server_key_file)
104 cert = Certificate(subject=subject)
105 cert.set_issuer(key=key, subject=subject)
108 cert.save_to_file(server_cert_file, save_parents=True)
111 # If private key exists and cert doesnt, recreate cert
112 if (os.path.exists(server_key_file)) and (not os.path.exists(server_cert_file)):
113 key = Keypair(filename=server_key_file)
114 cert = Certificate(subject=subject)
115 cert.set_issuer(key=key, subject=subject)
118 cert.save_to_file(server_cert_file)
120 def init_server(options, config):
122 Execute the init method defined in the manager file
124 manager_base = 'sfa.managers'
126 mgr_type = config.SFA_REGISTRY_TYPE
127 manager_module = manager_base + ".registry_manager_%s" % mgr_type
128 try: manager = __import__(manager_module, fromlist=[manager_base])
129 except: manager = None
130 if manager and hasattr(manager, 'init_server'):
131 manager.init_server()
133 mgr_type = config.SFA_AGGREGATE_TYPE
134 manager_module = manager_base + ".aggregate_manager_%s" % mgr_type
135 try: manager = __import__(manager_module, fromlist=[manager_base])
136 except: manager = None
137 if manager and hasattr(manager, 'init_server'):
138 manager.init_server()
140 mgr_type = config.SFA_SM_TYPE
141 manager_module = manager_base + ".slice_manager_%s" % mgr_type
142 try: manager = __import__(manager_module, fromlist=[manager_base])
143 except: manager = None
144 if manager and hasattr(manager, 'init_server'):
145 manager.init_server()
147 mgr_type = config.SFA_CM_TYPE
148 manager_module = manager_base + ".component_manager_%s" % mgr_type
149 try: manager = __import__(manager_module, fromlist=[manager_base])
150 except: manager = None
151 if manager and hasattr(manager, 'init_server'):
152 manager.init_server()
154 def sync_interfaces(server_key_file, server_cert_file):
156 Attempt to install missing trusted gids and db records for
157 our federated interfaces
159 api = SfaAPI(key_file = server_key_file, cert_file = server_cert_file)
160 registries = Registries(api)
161 aggregates = Aggregates(api)
162 registries.sync_interfaces()
163 aggregates.sync_interfaces()
166 # xxx get rid of globals - name consistently CamelCase or under_score
170 global aggregate_port
173 # Generate command line parser
174 parser = OptionParser(usage="sfa-server [options]")
175 parser.add_option("-r", "--registry", dest="registry", action="store_true",
176 help="run registry server", default=False)
177 parser.add_option("-s", "--slicemgr", dest="sm", action="store_true",
178 help="run slice manager", default=False)
179 parser.add_option("-a", "--aggregate", dest="am", action="store_true",
180 help="run aggregate manager", default=False)
181 parser.add_option("-c", "--component", dest="cm", action="store_true",
182 help="run component server", default=False)
183 parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
184 help="verbose mode", default=False)
185 parser.add_option("-d", "--daemon", dest="daemon", action="store_true",
186 help="Run as daemon.", default=False)
187 (options, args) = parser.parse_args()
188 if options.verbose: sfa_logger.setLevel(logging.DEBUG)
191 if config.SFA_API_DEBUG: sfa_logger.setLevel(logging.DEBUG)
192 hierarchy = Hierarchy()
193 server_key_file = os.path.join(hierarchy.basedir, "server.key")
194 server_cert_file = os.path.join(hierarchy.basedir, "server.cert")
196 init_server_key(server_key_file, server_cert_file, config, hierarchy)
197 init_server(options, config)
198 sync_interfaces(server_key_file, server_cert_file)
200 if (options.daemon): daemon()
201 # start registry server
202 if (options.registry):
203 from sfa.server.registry import Registry
204 r = Registry("", registry_port, server_key_file, server_cert_file)
207 # start aggregate manager
209 from sfa.server.aggregate import Aggregate
210 a = Aggregate("", aggregate_port, server_key_file, server_cert_file)
213 # start slice manager
215 from sfa.server.slicemgr import SliceMgr
216 s = SliceMgr("", slicemgr_port, server_key_file, server_cert_file)
220 from sfa.server.component import Component
221 c = Component("", component_port, server_key_file, server_cert_file)
224 if __name__ == "__main__":
228 sfa_logger.log_exc_critical("SFA server is exiting")