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
40 from optparse import OptionParser
41 from sfa.trust.trustedroot import TrustedRootList
42 from sfa.trust.certificate import Keypair, Certificate
43 from sfa.trust.hierarchy import Hierarchy
44 from sfa.util.config import Config
45 from sfa.util.report import trace
46 from sfa.plc.api import SfaAPI
47 from sfa.server.registry import Registries
48 from sfa.server.aggregate import Aggregates
50 # after http://www.erlenstar.demon.co.uk/unix/faq_2.html
52 """Daemonize the current process."""
53 if os.fork() != 0: os._exit(0)
55 if os.fork() != 0: os._exit(0)
57 devnull = os.open(os.devnull, os.O_RDWR)
59 # xxx fixme - this is just to make sure that nothing gets stupidly lost - should use devnull
60 crashlog = os.open('/var/log/sfa.daemon', os.O_RDWR | os.O_APPEND | os.O_CREAT, 0644)
64 def init_server_key(server_key_file, server_cert_file, config, hierarchy):
66 subject = config.SFA_INTERFACE_HRN
67 # check if the server's private key exists. If it doesnt,
68 # get the right one from the authorities directory. If it cant be
69 # found in the authorities directory, generate a random one
70 if not os.path.exists(server_key_file):
71 hrn = config.SFA_INTERFACE_HRN.lower()
72 hrn_parts = hrn.split(".")
74 pkey_filename = hrn+".pkey"
76 # sub authority's have "." in their hrn. This must
77 # be converted to os.path separator
78 if len(hrn_parts) > 0:
79 rel_key_path = hrn.replace(".", os.sep)
80 pkey_filename= hrn_parts[-1]+".pkey"
82 key_file = os.sep.join([hierarchy.basedir, rel_key_path, pkey_filename])
83 if not os.path.exists(key_file):
84 # if it doesnt exist then this is probably a fresh interface
85 # with no records. Generate a random keypair for now
86 trace("server's public key not found in %s" % key_file)
87 trace("generating a random server key pair")
88 key = Keypair(create=True)
89 key.save_to_file(server_key_file)
90 cert = Certificate(subject=subject)
91 cert.set_issuer(key=key, subject=subject)
94 cert.save_to_file(server_cert_file, save_parents=True)
97 # the pkey was found in the authorites directory. lets
98 # copy it to where the server key should be and generate
100 key = Keypair(filename=key_file)
101 key.save_to_file(server_key_file)
102 cert = Certificate(subject=subject)
103 cert.set_issuer(key=key, subject=subject)
106 cert.save_to_file(server_cert_file, save_parents=True)
109 # If private key exists and cert doesnt, recreate cert
110 if (os.path.exists(server_key_file)) and (not os.path.exists(server_cert_file)):
111 key = Keypair(filename=server_key_file)
112 cert = Certificate(subject=subject)
113 cert.set_issuer(key=key, subject=subject)
116 cert.save_to_file(server_cert_file)
118 def init_server(options, config):
120 Execute the init method defined in the manager file
122 manager_base = 'sfa.managers'
124 mgr_type = config.SFA_REGISTRY_TYPE
125 manager_module = manager_base + ".registry_manager_%s" % mgr_type
126 try: manager = __import__(manager_module, fromlist=[manager_base])
127 except: manager = None
128 if manager and hasattr(manager, 'init_server'):
129 manager.init_server()
131 mgr_type = config.SFA_AGGREGATE_TYPE
132 manager_module = manager_base + ".aggregate_manager_%s" % mgr_type
133 try: manager = __import__(manager_module, fromlist=[manager_base])
134 except: manager = None
135 if manager and hasattr(manager, 'init_server'):
136 manager.init_server()
138 mgr_type = config.SFA_SM_TYPE
139 manager_module = manager_base + ".slice_manager_%s" % mgr_type
140 try: manager = __import__(manager_module, fromlist=[manager_base])
141 except: manager = None
142 if manager and hasattr(manager, 'init_server'):
143 manager.init_server()
145 mgr_type = config.SFA_CM_TYPE
146 manager_module = manager_base + ".component_manager_%s" % mgr_type
147 try: manager = __import__(manager_module, fromlist=[manager_base])
148 except: manager = None
149 if manager and hasattr(manager, 'init_server'):
150 manager.init_server()
153 def sync_interfaces():
155 Attempt to install missing trusted gids and db records for
156 our federated interfaces
159 registries = Registries(api)
160 aggregates = Aggregates(api)
161 registries.sync_interfaces()
162 aggregates.sync_interfaces()
165 # xxx get rid of globals - name consistently CamelCase or under_score
169 global aggregate_port
172 # Generate command line parser
173 parser = OptionParser(usage="sfa-server [options]")
174 parser.add_option("-r", "--registry", dest="registry", action="store_true",
175 help="run registry server", default=False)
176 parser.add_option("-s", "--slicemgr", dest="sm", action="store_true",
177 help="run slice manager", default=False)
178 parser.add_option("-a", "--aggregate", dest="am", action="store_true",
179 help="run aggregate manager", default=False)
180 parser.add_option("-c", "--component", dest="cm", action="store_true",
181 help="run component server", default=False)
182 parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
183 help="verbose mode", default=False)
184 parser.add_option("-d", "--daemon", dest="daemon", action="store_true",
185 help="Run as daemon.", default=False)
186 (options, args) = parser.parse_args()
188 if (options.daemon): daemon()
191 hierarchy = Hierarchy()
192 server_key_file = os.path.join(hierarchy.basedir, "server.key")
193 server_cert_file = os.path.join(hierarchy.basedir, "server.cert")
195 init_server_key(server_key_file, server_cert_file, config, hierarchy)
196 init_server(options, config)
199 # start registry server
200 if (options.registry):
201 from sfa.server.registry import Registry
202 r = Registry("", registry_port, server_key_file, server_cert_file)
205 # start aggregate manager
207 from sfa.server.aggregate import Aggregate
208 a = Aggregate("", aggregate_port, server_key_file, server_cert_file)
211 # start slice manager
213 from sfa.server.slicemgr import SliceMgr
214 s = SliceMgr("", slicemgr_port, server_key_file, server_cert_file)
218 from sfa.server.component import Component
219 c = Component("", component_port, server_key_file, server_cert_file)
222 if __name__ == "__main__":