planetstack/model_policies/model_policy_Network.py

   1 from core.models import *
   2
   3 def handle(network):
   4         from core.models import SliceDeployment,NetworkDeployments
   5         from collections import defaultdict
   6         # network deployments are not visible to users. We must ensure
   7         # networks are deployed at all deploymets available to their slices.
   8         slice_deployments = SliceDeployment.objects.all()
   9         slice_deploy_lookup = defaultdict(list)
  10         for slice_deployment in slice_deployments:
  11                 slice_deploy_lookup[slice_deployment.slice].append(slice_deployment.deployment)
  12
  13         network_deployments = NetworkDeployments.objects.all()
  14         network_deploy_lookup = defaultdict(list)
  15         for network_deployment in network_deployments:
  16                 network_deploy_lookup[network_deployment.network].append(network_deployment.deployment)
  17
  18         expected_deployments = slice_deploy_lookup[network.owner]
  19         for expected_deployment in expected_deployments:
  20                 if network not in network_deploy_lookup or \
  21                   expected_deployment not in network_deploy_lookup[network]:
  22                         nd = NetworkDeployments(network=network, deployment=expected_deployment)
  23                         nd.save()