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path: root/extraconfig/nova_metadata/krb-service-principals.yaml
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heat_template_version: pike
description: 'Generates the relevant service principals for a server'

parameters:
  RoleData:
     type: json
     description: the list containing the 'role_data' output for the ServiceChain

  # Coming from parameter_defaults
  CloudName:
    default: overcloud.localdomain
    description: The DNS name of this cloud. E.g. ci-overcloud.tripleo.org
    type: string
  CloudNameInternal:
    default: overcloud.internalapi.localdomain
    description: >
      The DNS name of this cloud's internal API endpoint. E.g.
      'ci-overcloud.internalapi.tripleo.org'.
    type: string
  CloudNameStorage:
    default: overcloud.storage.localdomain
    description: >
      The DNS name of this cloud's storage endpoint. E.g.
      'ci-overcloud.storage.tripleo.org'.
    type: string
  CloudNameStorageManagement:
    default: overcloud.storagemgmt.localdomain
    description: >
      The DNS name of this cloud's storage management endpoint. E.g.
      'ci-overcloud.storagemgmt.tripleo.org'.
    type: string
  CloudNameCtlplane:
    default: overcloud.ctlplane.localdomain
    description: >
      The DNS name of this cloud's storage management endpoint. E.g.
      'ci-overcloud.management.tripleo.org'.
    type: string

resources:

  IncomingMetadataSettings:
    type: OS::Heat::Value
    properties:
      value:
        yaql:
          # Filter null values and values that contain don't contain
          # 'metadata_settings', get the values from that key and get the
          # unique ones.
          expression: list(coalesce($.data, []).where($ != null).where($.containsKey('metadata_settings')).metadata_settings.flatten().distinct())
          data: {get_param: RoleData}

  # Generates entries for nova metadata with the following format:
  #   'managed_service_<id>' : <service>/<fqdn>
  # Depending on the requested network
  IndividualServices:
    type: OS::Heat::Value
    properties:
      value:
        yaql:
          expression: let(fqdns => $.data.fqdns) -> dict(coalesce($.data.metadata, []).where($ != null and $.type = 'vip').select([concat('managed_service_', $.service, $.network), concat($.service, '/', $fqdns.get($.network))]))
          data:
            metadata: {get_attr: [IncomingMetadataSettings, value]}
            fqdns:
              external: {get_param: CloudName}
              internal_api: {get_param: CloudNameInternal}
              storage: {get_param: CloudNameStorage}
              storage_mgmt: {get_param: CloudNameStorageManagement}
              ctlplane: {get_param: CloudNameCtlplane}

  CompactServices:
    type: OS::Heat::Value
    properties:
      value:
        yaql:
          expression: dict(coalesce($.data, []).where($ != null and $.type = 'node').select([$.service, $.network.replace('_', '')]).groupBy($[0], $[1]))
          data: {get_attr: [IncomingMetadataSettings, value]}

outputs:
  metadata:
    description: actual metadata entries that will be passed to the server.
    value:
      map_merge:
        - {get_attr: [IndividualServices, value]}
        - compact_services: {get_attr: [CompactServices, value]}