tripleo-heat-templates/overcloud.j2.yaml

{% set primary_role_name = roles[0].name -%}
heat_template_version: ocata

description: >
  Deploy an OpenStack environment, consisting of several node types (roles),
  Controller, Compute, BlockStorage, SwiftStorage and CephStorage. The Storage
  roles enable independent scaling of the storage components, but the minimal
  deployment is one Controller and one Compute node.  


# TODO(shadower): we should probably use the parameter groups to put
# some order in here.
parameters:

  # Common parameters (not specific to a role)
  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
  ControlFixedIPs:
    default: []
    description: Should be used for arbitrary ips.
    type: json
  InternalApiVirtualFixedIPs:
    default: []
    description: >
        Control the IP allocation for the InternalApiVirtualInterface port. E.g.
        [{'ip_address':'1.2.3.4'}]        
    type: json
  NeutronControlPlaneID:
    default: 'ctlplane'
    type: string
    description: Neutron ID or name for ctlplane network.
  NeutronPublicInterface:
    default: nic1
    description: What interface to bridge onto br-ex for network nodes.
    type: string
  PublicVirtualFixedIPs:
    default: []
    description: >
        Control the IP allocation for the PublicVirtualInterface port. E.g.
        [{'ip_address':'1.2.3.4'}]        
    type: json
  RabbitCookieSalt:
    type: string
    default: unset
    description: Salt for the rabbit cookie, change this to force the randomly generated rabbit cookie to change.
  StorageVirtualFixedIPs:
    default: []
    description: >
        Control the IP allocation for the StorageVirtualInterface port. E.g.
        [{'ip_address':'1.2.3.4'}]        
    type: json
  StorageMgmtVirtualFixedIPs:
    default: []
    description: >
        Control the IP allocation for the StorageMgmgVirtualInterface port. E.g.
        [{'ip_address':'1.2.3.4'}]        
    type: json
  RedisVirtualFixedIPs:
    default: []
    description: >
        Control the IP allocation for the virtual IP used by Redis. E.g.
        [{'ip_address':'1.2.3.4'}]        
    type: json
  CloudDomain:
    default: 'localdomain'
    type: string
    description: >
      The DNS domain used for the hosts. This should match the dhcp_domain
      configured in the Undercloud neutron. Defaults to localdomain.      
  ServerMetadata:
    default: {}
    description: >
      Extra properties or metadata passed to Nova for the created nodes in
      the overcloud. It's accessible via the Nova metadata API.      
    type: json

# Compute-specific params
# FIXME(shardy) handle these deprecated names as they don't match compute.yaml
  HypervisorNeutronPhysicalBridge:
    default: 'br-ex'
    description: >
      An OVS bridge to create on each hypervisor. This defaults to br-ex the
      same as the control plane nodes, as we have a uniform configuration of
      the openvswitch agent. Typically should not need to be changed.      
    type: string
  HypervisorNeutronPublicInterface:
    default: nic1
    description: What interface to add to the HypervisorNeutronPhysicalBridge.
    type: string

  # Jinja loop for Role in role_data.yaml
{% for role in roles %}
  # Parameters generated for {{role.name}} Role
  {{role.name}}Services:
    description: A list of service resources (configured in the Heat
                 resource_registry) which represent nested stacks
                 for each service that should get installed on the {{role.name}} role.
    type: comma_delimited_list

  {{role.name}}Count:
    description: Number of {{role.name}} nodes to deploy
    type: number
    default: {{role.CountDefault|default(0)}}

  {{role.name}}HostnameFormat:
    type: string
    description: >
      Format for {{role.name}} node hostnames
      Note %index% is translated into the index of the node, e.g 0/1/2 etc
      and %stackname% is replaced with the stack name e.g overcloud      
  {% if role.HostnameFormatDefault %}
    default: "{{role.HostnameFormatDefault}}"
  {% else %}
    default: "%stackname%-{{role.name.lower()}}-%index%"
  {% endif %}

  {{role.name}}RemovalPolicies:
    default: []
    type: json
    description: >
      List of resources to be removed from {{role.name}} ResourceGroup when
      doing an update which requires removal of specific resources.
      Example format ComputeRemovalPolicies: [{'resource_list': ['0']}]      

{% if role.name != 'Compute' %}
  {{role.name}}SchedulerHints:
{% else %}
  NovaComputeSchedulerHints:
{% endif %}
    type: json
    description: Optional scheduler hints to pass to nova
    default: {}
{% endfor %}

  # Identifiers to trigger tasks on nodes
  UpdateIdentifier:
    default: ''
    type: string
    description: >
      Setting to a previously unused value during stack-update will trigger
      package update on all nodes      
  DeployIdentifier:
    default: ''
    type: string
    description: >
      Setting this to a unique value will re-run any deployment tasks which
      perform configuration on a Heat stack-update.      
  AddVipsToEtcHosts:
    default: True
    type: boolean
    description: >
      Set to true to append per network Vips to /etc/hosts on each node.      

conditions:
  add_vips_to_etc_hosts: {equals : [{get_param: AddVipsToEtcHosts}, True]}

resources:

  VipHosts:
    type: OS::Heat::Value
    properties:
      type: string
      value:
        list_join:
        - "\n"
        - - str_replace:
              template: IP  HOST
              params:
                IP: {get_attr: [VipMap, net_ip_map, external]}
                HOST: {get_param: CloudName}
          - str_replace:
              template: IP  HOST
              params:
                IP: {get_attr: [VipMap, net_ip_map, ctlplane]}
                HOST: {get_param: CloudNameCtlplane}
          - str_replace:
              template: IP  HOST
              params:
                IP: {get_attr: [VipMap, net_ip_map, internal_api]}
                HOST: {get_param: CloudNameInternal}
          - str_replace:
              template: IP  HOST
              params:
                IP: {get_attr: [VipMap, net_ip_map, storage]}
                HOST: {get_param: CloudNameStorage}
          - str_replace:
              template: IP  HOST
              params:
                IP: {get_attr: [VipMap, net_ip_map, storage_mgmt]}
                HOST: {get_param: CloudNameStorageManagement}

  HeatAuthEncryptionKey:
    type: OS::Heat::RandomString

  PcsdPassword:
    type: OS::Heat::RandomString
    properties:
      length: 16

  HorizonSecret:
    type: OS::Heat::RandomString
    properties:
      length: 10

  ServiceNetMap:
    type: OS::TripleO::ServiceNetMap

  EndpointMap:
    type: OS::TripleO::EndpointMap
    properties:
      CloudEndpoints:
        external: {get_param: CloudName}
        internal_api: {get_param: CloudNameInternal}
        storage: {get_param: CloudNameStorage}
        storage_mgmt: {get_param: CloudNameStorageManagement}
        ctlplane: {get_param: CloudNameCtlplane}
      NetIpMap: {get_attr: [VipMap, net_ip_map]}
      ServiceNetMap: {get_attr: [ServiceNetMap, service_net_map]}

  # Jinja loop for Role in roles_data.yaml
{% for role in roles %}
  # Resources generated for {{role.name}} Role
  {{role.name}}ServiceChain:
    type: OS::TripleO::Services
    properties:
      Services:
        get_param: {{role.name}}Services
      ServiceNetMap: {get_attr: [ServiceNetMap, service_net_map]}
      EndpointMap: {get_attr: [EndpointMap, endpoint_map]}
      DefaultPasswords: {get_attr: [DefaultPasswords, passwords]}

  {{role.name}}HostsDeployment:
    type: OS::Heat::StructuredDeployments
    properties:
      name: {{role.name}}HostsDeployment
      config: {get_attr: [hostsConfig, config_id]}
      servers: {get_attr: [{{role.name}}, attributes, nova_server_resource]}

  {{role.name}}AllNodesDeployment:
    type: OS::Heat::StructuredDeployments
    depends_on:
{% for role_inner in roles %}
      - {{role_inner.name}}HostsDeployment
{% endfor %}
    properties:
      name: {{role.name}}AllNodesDeployment
      config: {get_attr: [allNodesConfig, config_id]}
      servers: {get_attr: [{{role.name}}, attributes, nova_server_resource]}
      input_values:
        # Note we have to use yaql to look up the first hostname/ip in the
        # list because heat path based attributes operate on the attribute
        # inside the ResourceGroup, not the exposed list ref discussion in
        # https://bugs.launchpad.net/heat/+bug/1640488
        # The coalesce is needed because $.data is None during heat validation
        bootstrap_nodeid:
          yaql:
            expression: coalesce($.data, []).first(null)
            data: {get_attr: [{{role.name}}, hostname]}
        bootstrap_nodeid_ip:
          yaql:
            expression: coalesce($.data, []).first(null)
            data: {get_attr: [{{role.name}}, ip_address]}

  {{role.name}}AllNodesValidationDeployment:
    type: OS::Heat::StructuredDeployments
    depends_on: {{role.name}}AllNodesDeployment
    properties:
      name: {{role.name}}AllNodesValidationDeployment
      config: {get_resource: AllNodesValidationConfig}
      servers: {get_attr: [{{role.name}}, attributes, nova_server_resource]}

  {{role.name}}IpListMap:
    type: OS::TripleO::Network::Ports::NetIpListMap
    properties:
      ControlPlaneIpList: {get_attr: [{{role.name}}, ip_address]}
      ExternalIpList: {get_attr: [{{role.name}}, external_ip_address]}
      InternalApiIpList: {get_attr: [{{role.name}}, internal_api_ip_address]}
      StorageIpList: {get_attr: [{{role.name}}, storage_ip_address]}
      StorageMgmtIpList: {get_attr: [{{role.name}}, storage_mgmt_ip_address]}
      TenantIpList: {get_attr: [{{role.name}}, tenant_ip_address]}
      ManagementIpList: {get_attr: [{{role.name}}, management_ip_address]}
      EnabledServices: {get_attr: [{{role.name}}ServiceChain, role_data, service_names]}
      ServiceNetMap: {get_attr: [ServiceNetMap, service_net_map_lower]}
      ServiceHostnameList: {get_attr: [{{role.name}}, hostname]}
      NetworkHostnameMap:
        # Note (shardy) this somewhat complex yaql may be replaced
        # with a map_deep_merge function in ocata.  It merges the
        # list of maps, but appends to colliding lists so we can
        # create a map of lists for all nodes for each network
        yaql:
          expression: dict($.data.where($ != null).flatten().selectMany($.items()).groupBy($[0], $[1], [$[0], $[1].flatten()]))
          data:
            - {get_attr: [{{role.name}}, hostname_map]}

  {{role.name}}:
    type: OS::Heat::ResourceGroup
    depends_on: Networks
    properties:
      count: {get_param: {{role.name}}Count}
      removal_policies: {get_param: {{role.name}}RemovalPolicies}
      resource_def:
        type: OS::TripleO::{{role.name}}
        properties:
          CloudDomain: {get_param: CloudDomain}
          ServiceNetMap: {get_attr: [ServiceNetMap, service_net_map]}
          EndpointMap: {get_attr: [EndpointMap, endpoint_map]}
          Hostname:
            str_replace:
              template: {get_param: {{role.name}}HostnameFormat}
              params:
                '%stackname%': {get_param: 'OS::stack_name'}
          NodeIndex: '%index%'
  {% if role.name != 'Compute' %}
          {{role.name}}SchedulerHints: {get_param: {{role.name}}SchedulerHints}
  {% else %}
          NovaComputeSchedulerHints: {get_param: NovaComputeSchedulerHints}
  {% endif %}
          ServiceConfigSettings:
            map_merge:
              -  get_attr: [{{role.name}}ServiceChain, role_data, config_settings]
          {% for r in roles %}
              - get_attr: [{{r.name}}ServiceChain, role_data, global_config_settings]
          {% endfor %}
              # This next step combines two yaql passes:
              # - The inner one does a deep merge on the service_config_settings for all roles
              # - The outer one filters the map based on the services enabled for the role
              #   then merges the result into one map.
              - yaql:
                  expression: let(root => $) -> $.data.map.items().where($[0] in coalesce($root.data.services, [])).select($[1]).reduce($1.mergeWith($2), {})
                  data:
                    map:
                      yaql:
                        expression: $.data.where($ != null).reduce($1.mergeWith($2), {})
                        data:
                        {% for r in roles %}
                          - get_attr: [{{r.name}}ServiceChain, role_data, service_config_settings]
                        {% endfor %}
                    services: {get_attr: [{{role.name}}ServiceChain, role_data, service_names]}
          ServiceNames: {get_attr: [{{role.name}}ServiceChain, role_data, service_names]}
          MonitoringSubscriptions: {get_attr: [{{role.name}}ServiceChain, role_data, monitoring_subscriptions]}
          ServiceMetadataSettings: {get_attr: [{{role.name}}ServiceChain, role_data, service_metadata_settings]}
{% endfor %}

  hostsConfig:
    type: OS::TripleO::Hosts::SoftwareConfig
    properties:
      hosts:
        list_join:
        - "\n"
        - - if:
            - add_vips_to_etc_hosts
            - {get_attr: [VipHosts, value]}
            - ''
        -
{% for role in roles %}
          - list_join:
            - "\n"
            - {get_attr: [{{role.name}}, hosts_entry]}
{% endfor %}

  allNodesConfig:
    type: OS::TripleO::AllNodes::SoftwareConfig
    properties:
      cloud_name_external: {get_param: CloudName}
      cloud_name_internal_api: {get_param: CloudNameInternal}
      cloud_name_storage: {get_param: CloudNameStorage}
      cloud_name_storage_mgmt: {get_param: CloudNameStorageManagement}
      cloud_name_ctlplane: {get_param: CloudNameCtlplane}
      enabled_services:
        list_join:
          - ','
{% for role in roles %}
          - {get_attr: [{{role.name}}ServiceChain, role_data, service_names]}
{% endfor %}
      logging_groups:
        yaql:
          expression: >
            $.data.groups.flatten()            
          data:
            groups:
{% for role in roles %}
              - {get_attr: [{{role.name}}ServiceChain, role_data, logging_groups]}
{% endfor %}
      logging_sources:
        yaql:
          expression: >
            $.data.sources.flatten()            
          data:
            sources:
{% for role in roles %}
              - {get_attr: [{{role.name}}ServiceChain, role_data, logging_sources]}
{% endfor %}
      controller_ips: {get_attr: [{{primary_role_name}}, ip_address]}
      controller_names: {get_attr: [{{primary_role_name}}, hostname]}
      service_ips:
        # Note (shardy) this somewhat complex yaql may be replaced
        # with a map_deep_merge function in ocata.  It merges the
        # list of maps, but appends to colliding lists when a service
        # is deployed on more than one role
        yaql:
          expression: dict($.data.l.where($ != null).selectMany($.items()).groupBy($[0], $[1], [$[0], $[1].flatten()]))
          data:
            l:
{% for role in roles %}
              - {get_attr: [{{role.name}}IpListMap, service_ips]}
{% endfor %}
      service_node_names:
        yaql:
          expression: dict($.data.l.where($ != null).selectMany($.items()).groupBy($[0], $[1], [$[0], $[1].flatten()]))
          data:
            l:
{% for role in roles %}
              - {get_attr: [{{role.name}}IpListMap, service_hostnames]}
{% endfor %}
      short_service_node_names:
        yaql:
          expression: dict($.data.l.where($ != null).selectMany($.items()).groupBy($[0], $[1], [$[0], $[1].flatten()]))
          data:
            l:
{% for role in roles %}
              - {get_attr: [{{role.name}}IpListMap, short_service_hostnames]}
{% endfor %}
      short_service_bootstrap_node:
        yaql:
          expression: dict($.data.l.where($ != null).selectMany($.items()).groupBy($[0], $[1], [$[0], $[1].flatten().first()]))
          data:
            l:
{% for role in roles %}
              - {get_attr: [{{role.name}}IpListMap, short_service_bootstrap_hostnames]}
{% endfor %}
      # FIXME(shardy): These require further work to move into service_ips
      memcache_node_ips: {get_attr: [{{primary_role_name}}IpListMap, net_ip_map, {get_attr: [ServiceNetMap, service_net_map, MemcachedNetwork]}]}
      NetVipMap: {get_attr: [VipMap, net_ip_map]}
      RedisVirtualIP: {get_attr: [RedisVirtualIP, ip_address]}
      ServiceNetMap: {get_attr: [ServiceNetMap, service_net_map_lower]}
      DeployIdentifier: {get_param: DeployIdentifier}
      UpdateIdentifier: {get_param: UpdateIdentifier}

  MysqlRootPassword:
    type: OS::Heat::RandomString
    properties:
      length: 10

  RabbitCookie:
    type: OS::Heat::RandomString
    properties:
      length: 20
      salt: {get_param: RabbitCookieSalt}

  DefaultPasswords:
    type: OS::TripleO::DefaultPasswords
    properties:
      DefaultMysqlRootPassword: {get_attr: [MysqlRootPassword, value]}
      DefaultRabbitCookie: {get_attr: [RabbitCookie, value]}
      DefaultHeatAuthEncryptionKey: {get_attr: [HeatAuthEncryptionKey, value]}
      DefaultPcsdPassword: {get_attr: [PcsdPassword, value]}
      DefaultHorizonSecret: {get_attr: [HorizonSecret, value]}

  # creates the network architecture
  Networks:
    type: OS::TripleO::Network

  ControlVirtualIP:
    type: OS::TripleO::Network::Ports::ControlPlaneVipPort
    depends_on: Networks
    properties:
      name: control_virtual_ip
      network: {get_param: NeutronControlPlaneID}
      fixed_ips: {get_param: ControlFixedIPs}
      replacement_policy: AUTO

  RedisVirtualIP:
    depends_on: Networks
    type: OS::TripleO::Network::Ports::RedisVipPort
    properties:
      ControlPlaneIP: {get_attr: [ControlVirtualIP, fixed_ips, 0, ip_address]}
      ControlPlaneNetwork: {get_param: NeutronControlPlaneID}
      PortName: redis_virtual_ip
      NetworkName: {get_attr: [ServiceNetMap, service_net_map, RedisNetwork]}
      ServiceName: redis
      FixedIPs: {get_param: RedisVirtualFixedIPs}

  # The public VIP is on the External net, falls back to ctlplane
  PublicVirtualIP:
    depends_on: Networks
    type: OS::TripleO::Network::Ports::ExternalVipPort
    properties:
      ControlPlaneIP: {get_attr: [ControlVirtualIP, fixed_ips, 0, ip_address]}
      ControlPlaneNetwork: {get_param: NeutronControlPlaneID}
      PortName: public_virtual_ip
      FixedIPs: {get_param: PublicVirtualFixedIPs}

  InternalApiVirtualIP:
    depends_on: Networks
    type: OS::TripleO::Network::Ports::InternalApiVipPort
    properties:
      ControlPlaneIP: {get_attr: [ControlVirtualIP, fixed_ips, 0, ip_address]}
      PortName: internal_api_virtual_ip
      FixedIPs: {get_param: InternalApiVirtualFixedIPs}

  StorageVirtualIP:
    depends_on: Networks
    type: OS::TripleO::Network::Ports::StorageVipPort
    properties:
      ControlPlaneIP: {get_attr: [ControlVirtualIP, fixed_ips, 0, ip_address]}
      PortName: storage_virtual_ip
      FixedIPs: {get_param: StorageVirtualFixedIPs}

  StorageMgmtVirtualIP:
    depends_on: Networks
    type: OS::TripleO::Network::Ports::StorageMgmtVipPort
    properties:
      ControlPlaneIP: {get_attr: [ControlVirtualIP, fixed_ips, 0, ip_address]}
      PortName: storage_management_virtual_ip
      FixedIPs: {get_param: StorageMgmtVirtualFixedIPs}

  VipMap:
    type: OS::TripleO::Network::Ports::NetVipMap
    properties:
      ControlPlaneIp: {get_attr: [ControlVirtualIP, fixed_ips, 0, ip_address]}
      ExternalIp: {get_attr: [PublicVirtualIP, ip_address]}
      ExternalIpUri: {get_attr: [PublicVirtualIP, ip_address_uri]}
      InternalApiIp: {get_attr: [InternalApiVirtualIP, ip_address]}
      InternalApiIpUri: {get_attr: [InternalApiVirtualIP, ip_address_uri]}
      StorageIp: {get_attr: [StorageVirtualIP, ip_address]}
      StorageIpUri: {get_attr: [StorageVirtualIP, ip_address_uri]}
      StorageMgmtIp: {get_attr: [StorageMgmtVirtualIP, ip_address]}
      StorageMgmtIpUri: {get_attr: [StorageMgmtVirtualIP, ip_address_uri]}
      # No tenant or management VIP required

  # All Nodes Validations
  AllNodesValidationConfig:
    type: OS::TripleO::AllNodes::Validation
    properties:
      PingTestIps:
        list_join:
        - ' '
        - - {get_attr: [{{primary_role_name}}, resource.0.external_ip_address]}
          - {get_attr: [{{primary_role_name}}, resource.0.internal_api_ip_address]}
          - {get_attr: [{{primary_role_name}}, resource.0.storage_ip_address]}
          - {get_attr: [{{primary_role_name}}, resource.0.storage_mgmt_ip_address]}
          - {get_attr: [{{primary_role_name}}, resource.0.tenant_ip_address]}
          - {get_attr: [{{primary_role_name}}, resource.0.management_ip_address]}

  UpdateWorkflow:
    type: OS::TripleO::Tasks::UpdateWorkflow
    depends_on:
{% for role in roles %}
      - {{role.name}}AllNodesDeployment
{% endfor %}
    properties:
      servers:
{% for role in roles %}
        {{role.name}}: {get_attr: [{{role.name}}, attributes, nova_server_resource]}
{% endfor %}
      input_values:
        deploy_identifier: {get_param: DeployIdentifier}
        update_identifier: {get_param: UpdateIdentifier}

  # Optional ExtraConfig for all nodes - all roles are passed in here, but
  # the nested template may configure each role differently (or not at all)
  AllNodesExtraConfig:
    type: OS::TripleO::AllNodesExtraConfig
    depends_on:
      - UpdateWorkflow
{% for role in roles %}
      - {{role.name}}AllNodesValidationDeployment
{% endfor %}
    properties:
      servers:
{% for role in roles %}
        {{role.name}}: {get_attr: [{{role.name}}, attributes, nova_server_resource]}
{% endfor %}

  # Post deployment steps for all roles
  AllNodesDeploySteps:
    type: OS::TripleO::PostDeploySteps
    depends_on:
{% for role in roles %}
      - {{role.name}}AllNodesDeployment
{% endfor %}
    properties:
      servers:
{% for role in roles %}
        {{role.name}}: {get_attr: [{{role.name}}, attributes, nova_server_resource]}
{% endfor %}
      EndpointMap: {get_attr: [EndpointMap, endpoint_map]}
      role_data:
{% for role in roles %}
        {{role.name}}: {get_attr: [{{role.name}}ServiceChain, role_data]}
{% endfor %}

outputs:
  ManagedEndpoints:
    description: Asserts that the keystone endpoints have been provisioned.
    value: true
  KeystoneURL:
    description: URL for the Overcloud Keystone service
    value: {get_attr: [EndpointMap, endpoint_map, KeystonePublic, uri]}
  KeystoneAdminVip:
    description: Keystone Admin VIP endpoint
    value: {get_attr: [VipMap, net_ip_map, {get_attr: [ServiceNetMap, service_net_map, KeystoneAdminApiNetwork]}]}
  EndpointMap:
    description: |
      Mapping of the resources with the needed info for their endpoints.
      This includes the protocol used, the IP, port and also a full
      representation of the URI.      
    value: {get_attr: [EndpointMap, endpoint_map]}
  HostsEntry:
    description: |
      The content that should be appended to your /etc/hosts if you want to get
      hostname-based access to the deployed nodes (useful for testing without
      setting up a DNS).      
    value:
      list_join:
      - "\n"
      - - {get_attr: [hostsConfig, hosts_entries]}
      - - {get_attr: [VipHosts, value]}
  EnabledServices:
    description: The services enabled on each role
    value:
{% for role in roles %}
      {{role.name}}: {get_attr: [{{role.name}}ServiceChain, role_data, service_names]}
{% endfor %}
  RoleData:
    description: The configuration data associated with each role
    value:
{% for role in roles %}
      {{role.name}}: {get_attr: [{{role.name}}ServiceChain, role_data]}
{% endfor %}