sfa/dummy/dummyslices.py

   1 import time
   2 from types import StringTypes
   3 from collections import defaultdict
   4
   5 from sfa.util.sfatime import utcparse, datetime_to_epoch
   6 from sfa.util.sfalogging import logger
   7 from sfa.util.xrn import Xrn, get_leaf, get_authority, urn_to_hrn
   8
   9 from sfa.rspecs.rspec import RSpec
  10 from sfa.storage.model import SliverAllocation
  11
  12 from sfa.dummy.dummyxrn import DummyXrn, hrn_to_dummy_slicename
  13
  14 MAXINT =  2L**31-1
  15
  16 class DummySlices:
  17
  18     def __init__(self, driver):
  19         self.driver = driver
  20
  21     def get_slivers(self, xrn, node=None):
  22         hrn, type = urn_to_hrn(xrn)
  23
  24         slice_name = hrn_to_dummy_slicename(hrn)
  25
  26         slices = self.driver.shell.GetSlices({'slice_name': slice_name})
  27         slice = slices[0]
  28         # Build up list of users and slice attributes
  29         user_ids = slice['user_ids']
  30         # Get user information
  31         all_users_list = self.driver.shell.GetUsers({'user_id':user_ids})
  32         all_users = {}
  33         for user in all_users_list:
  34             all_users[user['user_id']] = user
  35
  36         # Build up list of keys
  37         all_keys = set()
  38         for user in all_users_list:
  39             all_keys.extend(user['keys'])
  40
  41         slivers = []
  42         for slice in slices:
  43             keys = all_keys
  44             # XXX Sanity check; though technically this should be a system invariant
  45             # checked with an assertion
  46             if slice['expires'] > MAXINT:  slice['expires']= MAXINT
  47
  48             slivers.append({
  49                 'hrn': hrn,
  50                 'name': slice['name'],
  51                 'slice_id': slice['slice_id'],
  52                 'expires': slice['expires'],
  53                 'keys': keys,
  54             })
  55
  56         return slivers
  57
  58
  59     def verify_slice_nodes(self, slice_urn, slice, rspec_nodes):
  60
  61         slivers = {}
  62         for node in rspec_nodes:
  63             hostname = node.get('component_name')
  64             client_id = node.get('client_id')
  65             component_id = node.get('component_id').strip()
  66             if hostname:
  67                 hostname = hostname.strip()
  68             elif component_id:
  69                 hostname = xrn_to_hostname(component_id)
  70             if hostname:
  71                 slivers[hostname] = {'client_id': client_id, 'component_id': component_id}
  72         all_nodes = self.driver.shell.GetNodes()
  73         requested_slivers = []
  74         for node in all_nodes:
  75             if node['hostname'] in slivers.keys():
  76                 requested_slivers.append(node['node_id'])
  77
  78         if 'node_ids' not in slice.keys():
  79             slice['node_ids']=[]
  80         nodes = self.driver.shell.GetNodes({'node_ids': slice['node_ids']})
  81         current_slivers = [node['node_id'] for node in nodes]
  82
  83         # remove nodes not in rspec
  84         deleted_nodes = list(set(current_slivers).difference(requested_slivers))
  85
  86         # add nodes from rspec
  87         added_nodes = list(set(requested_slivers).difference(current_slivers))
  88
  89         try:
  90             self.driver.shell.AddSliceToNodes({'slice_id': slice['slice_id'], 'node_ids': added_nodes})
  91             self.driver.shell.DeleteSliceFromNodes({'slice_id': slice['slice_id'], 'node_ids': deleted_nodes})
  92
  93         except:
  94             logger.log_exc('Failed to add/remove slice from nodes')
  95
  96         slices = self.driver.shell.GetSlices({'slice_name': slice['slice_name']})
  97         resulting_nodes = self.driver.shell.GetNodes({'node_ids': slices[0]['node_ids']})
  98
  99         # update sliver allocations
 100         for node in resulting_nodes:
 101             client_id = slivers[node['hostname']]['client_id']
 102             component_id = slivers[node['hostname']]['component_id']
 103             sliver_hrn = '%s.%s-%s' % (self.driver.hrn, slice['slice_id'], node['node_id'])
 104             sliver_id = Xrn(sliver_hrn, type='sliver').urn
 105             record = SliverAllocation(sliver_id=sliver_id, client_id=client_id,
 106                                       component_id=component_id,
 107                                       slice_urn = slice_urn,
 108                                       allocation_state='geni_allocated')
 109             record.sync(self.driver.api.dbsession())
 110         return resulting_nodes
 111
 112
 113     def verify_slice(self, slice_hrn, slice_record, expiration, options=None):
 114         if options is None: options={}
 115         slicename = hrn_to_dummy_slicename(slice_hrn)
 116         parts = slicename.split("_")
 117         login_base = parts[0]
 118         slices = self.driver.shell.GetSlices({'slice_name': slicename})
 119         if not slices:
 120             slice = {'slice_name': slicename}
 121             # add the slice
 122             slice['slice_id'] = self.driver.shell.AddSlice(slice)
 123             slice['node_ids'] = []
 124             slice['user_ids'] = []
 125         else:
 126             slice = slices[0]
 127             if slice_record and slice_record.get('expires'):
 128                 requested_expires = int(datetime_to_epoch(utcparse(slice_record['expires'])))
 129                 if requested_expires and slice['expires'] != requested_expires:
 130                     self.driver.shell.UpdateSlice( {'slice_id': slice['slice_id'], 'fields':{'expires' : expiration}})
 131
 132         return slice
 133
 134     def verify_users(self, slice_hrn, slice_record, users, options=None):
 135         if options is None: options={}
 136         slice_name = hrn_to_dummy_slicename(slice_hrn)
 137         users_by_email = {}
 138         for user in users:
 139             user['urn'] = user['urn'].lower()
 140             hrn, type = urn_to_hrn(user['urn'])
 141             username = get_leaf(hrn)
 142             user['username'] = username
 143
 144             if 'email' in user:
 145                 user['email'] = user['email'].lower()
 146                 users_by_email[user['email']] = user
 147
 148         # start building a list of existing users
 149         existing_users_by_email = {}
 150         existing_slice_users_by_email = {}
 151         existing_users = self.driver.shell.GetUsers()
 152         existing_slice_users_ids = self.driver.shell.GetSlices({'slice_name': slice_name})[0]['user_ids']
 153         for user in existing_users:
 154             existing_users_by_email[user['email']] = user
 155             if user['user_id'] in existing_slice_users_ids:
 156                 existing_slice_users_by_email[user['email']] = user
 157
 158         add_users_by_email = set(users_by_email).difference(existing_slice_user_by_email)
 159         delete_users_by_email = set(existing_slice_user_by_email).difference(users_by_email)
 160         try:
 161             for user in add_users_by_email:
 162                 self.driver.shell.AddUser()
 163         except:
 164             pass
 165
 166
 167     def verify_keys(self, old_users, new_users, options=None):
 168         if options is None: options={}
 169         # existing keys
 170         existing_keys = []
 171         for user in old_users:
 172              existing_keys.append(user['keys'])
 173         userdict = {}
 174         for user in old_users:
 175             userdict[user['email']] = user
 176
 177         # add new keys
 178         requested_keys = []
 179         updated_users = []
 180         for user in new_users:
 181             user_keys = user.get('keys', [])
 182             updated_users.append(user)
 183             for key_string in user_keys:
 184                 requested_keys.append(key_string)
 185                 if key_string not in existing_keys:
 186                     key = key_string
 187                     try:
 188                         self.driver.shell.AddUserKey({'user_id': user['user_id'], 'key':key})
 189
 190                     except:
 191                         pass
 192         # remove old keys (only if we are not appending)
 193         append = options.get('append', True)
 194         if append == False:
 195             removed_keys = set(existing_keys).difference(requested_keys)
 196             for key in removed_keys:
 197                  try:
 198                      self.driver.shell.DeleteKey({'key': key})
 199                  except:
 200                      pass
 201