sfa/importer/openstackimporter.py

   1 import os
   2
   3 from sfa.util.config import Config
   4 from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn
   5 from sfa.trust.gid import create_uuid
   6 from sfa.trust.certificate import convert_public_key, Keypair
   7 from sfa.storage.alchemy import dbsession
   8 from sfa.storage.model import RegRecord, RegAuthority, RegUser, RegSlice, RegNode
   9 from sfa.openstack.osxrn import OSXrn
  10 from sfa.openstack.shell import Shell
  11
  12 def load_keys(filename):
  13     keys = {}
  14     tmp_dict = {}
  15     try:
  16         execfile(filename, tmp_dict)
  17         if 'keys' in tmp_dict:
  18             keys = tmp_dict['keys']
  19         return keys
  20     except:
  21         return keys
  22
  23 def save_keys(filename, keys):
  24     f = open(filename, 'w')
  25     f.write("keys = %s" % str(keys))
  26     f.close()
  27
  28 class OpenstackImporter:
  29
  30     def __init__ (self, auth_hierarchy, logger):
  31         self.auth_hierarchy = auth_hierarchy
  32         self.logger=logger
  33         self.config = Config ()
  34         self.interface_hrn = self.config.SFA_INTERFACE_HRN
  35         self.root_auth = self.config.SFA_REGISTRY_ROOT_AUTH
  36         self.shell = Shell (self.config)
  37
  38     def add_options (self, parser):
  39         self.logger.debug ("OpenstackImporter: no options yet")
  40         pass
  41
  42     def import_users(self, existing_hrns, existing_records):
  43         # Get all users
  44         users = self.shell.auth_manager.users.list()
  45         users_dict = {}
  46         keys_filename = self.config.config_path + os.sep + 'person_keys.py'
  47         old_user_keys = load_keys(keys_filename)
  48         user_keys = {}
  49         for user in users:
  50             auth_hrn = self.config.SFA_INTERFACE_HRN
  51             if user.tenantId is not None:
  52                 tenant = self.shell.auth_manager.tenants.find(id=user.tenantId)
  53                 auth_hrn = OSXrn(name=tenant.name, auth=self.config.SFA_INTERFACE_HRN, type='authority').get_hrn()
  54             hrn = OSXrn(name=user.name, auth=auth_hrn, type='user').get_hrn()
  55             users_dict[hrn] = user
  56             old_keys = old_user_keys.get(hrn, [])
  57             keys = [k.public_key for k in self.shell.nova_manager.keypairs.findall(name=hrn)]
  58             user_keys[hrn] = keys
  59             update_record = False
  60             if old_keys != keys:
  61                 update_record = True
  62             if hrn not in existing_hrns or \
  63                    (hrn, 'user') not in existing_records or update_record:
  64                 urn = OSXrn(xrn=hrn, type='user').get_urn()
  65
  66                 if keys:
  67                     try:
  68                         pkey = convert_public_key(keys[0])
  69                     except:
  70                         self.logger.log_exc('unable to convert public key for %s' % hrn)
  71                         pkey = Keypair(create=True)
  72                 else:
  73                     self.logger.warn("OpenstackImporter: person %s does not have a PL public key"%hrn)
  74                     pkey = Keypair(create=True)
  75                 user_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
  76                 user_record = RegUser ()
  77                 user_record.type='user'
  78                 user_record.hrn=hrn
  79                 user_record.gid=user_gid
  80                 user_record.authority=get_authority(hrn)
  81                 dbsession.add(user_record)
  82                 dbsession.commit()
  83                 self.logger.info("OpenstackImporter: imported person %s" % user_record)
  84
  85         return users_dict, user_keys
  86
  87     def import_tenants(self, existing_hrns, existing_records):
  88         # Get all tenants
  89         # A tenant can represent an organizational group (site) or a
  90         # slice. If a tenant's authorty/parent matches the root authority it is
  91         # considered a group/site. All other tenants are considered slices.
  92         tenants = self.shell.auth_manager.tenants.list()
  93         tenants_dict = {}
  94         for tenant in tenants:
  95             hrn = self.config.SFA_INTERFACE_HRN + '.' + tenant.name
  96             tenants_dict[hrn] = tenant
  97             authority_hrn = OSXrn(xrn=hrn, type='authority').get_authority_hrn()
  98
  99             if hrn in existing_hrns:
 100                 continue
 101
 102             if authority_hrn == self.config.SFA_INTERFACE_HRN:
 103                 # import group/site
 104                 record = RegAuthority()
 105                 urn = OSXrn(xrn=hrn, type='authority').get_urn()
 106                 if not self.auth_hierarchy.auth_exists(urn):
 107                     self.auth_hierarchy.create_auth(urn)
 108                 auth_info = self.auth_hierarchy.get_auth_info(urn)
 109                 gid = auth_info.get_gid_object()
 110                 record.type='authority'
 111                 record.hrn=hrn
 112                 record.gid=gid
 113                 record.authority=get_authority(hrn)
 114                 dbsession.add(record)
 115                 dbsession.commit()
 116                 self.logger.info("OpenstackImporter: imported authority: %s" % record)
 117
 118             else:
 119                 record = RegSlice ()
 120                 urn = OSXrn(xrn=hrn, type='slice').get_urn()
 121                 pkey = Keypair(create=True)
 122                 gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 123                 record.type='slice'
 124                 record.hrn=hrn
 125                 record.gid=gid
 126                 record.authority=get_authority(hrn)
 127                 dbsession.add(record)
 128                 dbsession.commit()
 129                 self.logger.info("OpenstackImporter: imported slice: %s" % record)
 130
 131         return tenants_dict
 132
 133     def run (self, options):
 134         # we don't have any options for now
 135         self.logger.info ("OpenstackImporter.run : to do")
 136
 137         # create dict of all existing sfa records
 138         existing_records = {}
 139         existing_hrns = []
 140         key_ids = []
 141         for record in dbsession.query(RegRecord):
 142             existing_records[ (record.hrn, record.type,) ] = record
 143             existing_hrns.append(record.hrn)
 144
 145
 146         tenants_dict = self.import_tenants(existing_hrns, existing_records)
 147         users_dict, user_keys = self.import_users(existing_hrns, existing_records)
 148
 149         # remove stale records
 150         system_records = [self.interface_hrn, self.root_auth, self.interface_hrn + '.slicemanager']
 151         for (record_hrn, type) in existing_records.keys():
 152             if record_hrn in system_records:
 153                 continue
 154
 155             record = existing_records[(record_hrn, type)]
 156             if record.peer_authority:
 157                 continue
 158
 159             if type == 'user':
 160                 if record_hrn in users_dict:
 161                     continue
 162             elif type in['slice', 'authority']:
 163                 if record_hrn in tenants_dict:
 164                     continue
 165             else:
 166                 continue
 167
 168             record_object = existing_records[ (record_hrn, type) ]
 169             self.logger.info("OpenstackImporter: removing %s " % record)
 170             dbsession.delete(record_object)
 171             dbsession.commit()
 172
 173         # save pub keys
 174         self.logger.info('OpenstackImporter: saving current pub keys')
 175         keys_filename = self.config.config_path + os.sep + 'person_keys.py'
 176         save_keys(keys_filename, user_keys)
 177