heat_template_version: wallaby

description: >
  Configuration of Nova Availability Zones in the overcloud

parameters:
  ServiceData:
    default: {}
    description: Dictionary packing service data
    type: json
  ServiceNetMap:
    default: {}
    description: Mapping of service_name -> network name. Typically set
                 via parameter_defaults in the resource registry. Use
                 parameter_merge_strategies to merge it with the defaults.
    type: json
  RoleName:
    default: ''
    description: Role name on which the service is applied
    type: string
  RoleParameters:
    default: {}
    description: Parameters specific to the role
    type: json
  EndpointMap:
    default: {}
    description: Mapping of service endpoint -> protocol. Typically set
                 via parameter_defaults in the resource registry.
    type: json
  AdminPassword:
    description: The password for the keystone admin account, used for monitoring, querying neutron etc.
    type: string
    hidden: true
  NovaComputeAvailabilityZone:
    description: The availability zone where new Nova compute nodes will be
                 added. If the zone does not already exist, it will be created.
                 If left unset, it will default to the value of the stack name.
    default: ""
    type: string
  RootStackName:
    description: The name of the stack/plan.
    type: string
  AuthCloudName:
    description: Entry in clouds.yaml to use for authentication
    type: string
    default: ""


conditions:
  availability_zone_set:
    not: {equals: [{get_param: NovaComputeAvailabilityZone}, ""]}
  auth_cloud_name_set:
    not: {equals: [{get_param: AuthCloudName}, ""]}

outputs:
  role_data:
    description: Role data for the Nova Availability Zone configuration service
    value:
      service_name: nova_az_config
      deploy_steps_tasks:
        # Step0: Get the [DEFAULT] host parameter from nova.conf and set it as
        #        an ansible fact so that we can use it later in the tasks in
        #        external_post_deploy_tasks
        - name: Get the host parameter from nova.conf
          when: step|int == 2
          block:
            - name: Read the parameter from nova.conf
              shell:
                crudini --get /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf DEFAULT host
              register: nova_host_output
            - name: Set nova_host fact
              set_fact:
                nova_host: "{{ nova_host_output.stdout }}"
      external_post_deploy_tasks:
        - name: "Nova: Manage aggregate and availability zone and add hosts to the zone"
          become: true
          environment:
            OS_CLOUD:
              if:
                - auth_cloud_name_set
                - {get_param: AuthCloudName}
                - {get_param: RootStackName}
          os_nova_host_aggregate:
            name: &availability_zone
              if:
                - availability_zone_set
                - {get_param: NovaComputeAvailabilityZone}
                - {get_param: RootStackName}
            availability_zone: *availability_zone
            hosts: "{{ groups['nova_compute'] | default([]) | map('extract', hostvars, 'nova_host') | select('defined') | list }}"