heat_template_version: pike

description: >
  OpenStack hypervisor node configured via Puppet.

parameters:
  ExtraConfig:
    default: {}
    description: |
      Additional hiera configuration to inject into the cluster. Note
      that NovaComputeExtraConfig takes precedence over ExtraConfig.
    type: json
  OvercloudComputeFlavor:
    description: Flavor for the nova compute node
    default: baremetal
    type: string
    constraints:
      - custom_constraint: nova.flavor
  NovaImage:
    type: string
    default: overcloud-full
    constraints:
      - custom_constraint: glance.image
  ImageUpdatePolicy:
    default: 'REBUILD_PRESERVE_EPHEMERAL'
    description: What policy to use when reconstructing instances. REBUILD for rebuilds, REBUILD_PRESERVE_EPHEMERAL to preserve /mnt.
    type: string
  KeyName:
    description: Name of an existing Nova key pair to enable SSH access to the instances
    type: string
    default: default
    constraints:
      - custom_constraint: nova.keypair
  NeutronPhysicalBridge:
    default: 'br-ex'
    description: An OVS bridge to create for accessing external networks.
    type: string
  NeutronPublicInterface:
    default: nic1
    description: A port to add to the NeutronPhysicalBridge.
    type: string
  NodeIndex:
    type: number
    default: 0
  NovaComputeExtraConfig:
    default: {}
    description: |
      NovaCompute specific configuration to inject into the cluster. Same
      structure as ExtraConfig.
    type: json
  NovaComputeIPs:
    default: {}
    type: json
  ServiceNetMap:
    default: {}
    description: Mapping of service_name -> network name. Typically set
                 via parameter_defaults in the resource registry.
    type: json
  EndpointMap:
    default: {}
    description: Mapping of service endpoint -> protocol. Typically set
                 via parameter_defaults in the resource registry.
    type: json
  UpdateIdentifier:
    default: ''
    type: string
    description: >
      Setting to a previously unused value during stack-update will trigger
      package update on all nodes
  Hostname:
    type: string
    default: '' # Defaults to Heat created hostname
  HostnameMap:
    type: json
    default: {}
    description: Optional mapping to override hostnames
  NetworkDeploymentActions:
    type: comma_delimited_list
    description: >
      Heat action when to apply network configuration changes
    default: ['CREATE']
  SoftwareConfigTransport:
    default: POLL_SERVER_CFN
    description: |
      How the server should receive the metadata required for software configuration.
    type: string
    constraints:
    - allowed_values: [POLL_SERVER_CFN, POLL_SERVER_HEAT, POLL_TEMP_URL, ZAQAR_MESSAGE]
  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.
  NovaComputeServerMetadata:
    default: {}
    description: >
      Extra properties or metadata passed to Nova for the created nodes in
      the overcloud. It's accessible via the Nova metadata API. This option is
      role-specific and is merged with the values given to the ServerMetadata
      parameter.
    type: json
  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. This applies to
      all roles and is merged with a role-specific metadata parameter.
    type: json
  NovaComputeSchedulerHints:
    type: json
    description: Optional scheduler hints to pass to nova
    default: {}
  ServiceConfigSettings:
    type: json
    default: {}
  ServiceNames:
    type: comma_delimited_list
    default: []
  MonitoringSubscriptions:
    type: comma_delimited_list
    default: []
  ServiceMetadataSettings:
    type: json
    default: {}
  ConfigCommand:
    type: string
    description: Command which will be run whenever configuration data changes
    default: os-refresh-config --timeout 14400
  ConfigCollectSplay:
    type: number
    default: 30
    description: |
      Maximum amount of time to possibly to delay configuation collection
      polling. Defaults to 30 seconds. Set to 0 to disable it which will cause
      the configuration collection to occur as soon as the collection process
      starts.  This setting is used to prevent the configuration collection
      processes from polling all at the exact same time.
  UpgradeInitCommand:
    type: string
    description: |
      Command or script snippet to run on all overcloud nodes to
      initialize the upgrade process. E.g. a repository switch.
    default: ''
  UpgradeInitCommonCommand:
    type: string
    description: |
      Common commands required by the upgrades process. This should not
      normally be modified by the operator and is set and unset in the
      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
      environment files.
    default: ''
  DeploymentServerBlacklistDict:
    default: {}
    type: json
    description: >
      Map of server hostnames to blacklist from any triggered
      deployments. If the value is 1, the server will be blacklisted. This
      parameter is generated from the parent template.

conditions:
  server_not_blacklisted:
    not:
      equals:
        - {get_param: [DeploymentServerBlacklistDict, {get_param: Hostname}]}
        - 1

resources:

  NovaCompute:
    type: OS::TripleO::ComputeServer
    metadata:
      os-collect-config:
        command: {get_param: ConfigCommand}
        splay: {get_param: ConfigCollectSplay}
    properties:
      image: {get_param: NovaImage}
      image_update_policy:
        get_param: ImageUpdatePolicy
      flavor: {get_param: OvercloudComputeFlavor}
      key_name: {get_param: KeyName}
      networks:
        - network: ctlplane
      user_data_format: SOFTWARE_CONFIG
      user_data: {get_resource: UserData}
      name:
        str_replace:
            template: {get_param: Hostname}
            params: {get_param: HostnameMap}
      software_config_transport: {get_param: SoftwareConfigTransport}
      metadata:
        map_merge:
          - {get_param: ServerMetadata}
          - {get_param: NovaComputeServerMetadata}
          - {get_param: ServiceMetadataSettings}
      scheduler_hints: {get_param: NovaComputeSchedulerHints}

  # Combine the NodeAdminUserData and NodeUserData mime archives
  UserData:
    type: OS::Heat::MultipartMime
    properties:
      parts:
      - config: {get_resource: NodeAdminUserData}
        type: multipart
      - config: {get_resource: NodeUserData}
        type: multipart
      - config: {get_resource: RoleUserData}
        type: multipart

  # Creates the "heat-admin" user if configured via the environment
  # Should return a OS::Heat::MultipartMime reference via OS::stack_id
  NodeAdminUserData:
    type: OS::TripleO::NodeAdminUserData

  # For optional operator additional userdata
  # Should return a OS::Heat::MultipartMime reference via OS::stack_id
  NodeUserData:
    type: OS::TripleO::NodeUserData

  # For optional operator role-specific userdata
  # Should return a OS::Heat::MultipartMime reference via OS::stack_id
  RoleUserData:
    type: OS::TripleO::Compute::NodeUserData

  ExternalPort:
    type: OS::TripleO::Compute::Ports::ExternalPort
    properties:
      ControlPlaneIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      IPPool: {get_param: NovaComputeIPs}
      NodeIndex: {get_param: NodeIndex}

  InternalApiPort:
    type: OS::TripleO::Compute::Ports::InternalApiPort
    properties:
      ControlPlaneIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      IPPool: {get_param: NovaComputeIPs}
      NodeIndex: {get_param: NodeIndex}

  StoragePort:
    type: OS::TripleO::Compute::Ports::StoragePort
    properties:
      ControlPlaneIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      IPPool: {get_param: NovaComputeIPs}
      NodeIndex: {get_param: NodeIndex}

  StorageMgmtPort:
    type: OS::TripleO::Compute::Ports::StorageMgmtPort
    properties:
      ControlPlaneIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      IPPool: {get_param: NovaComputeIPs}
      NodeIndex: {get_param: NodeIndex}

  TenantPort:
    type: OS::TripleO::Compute::Ports::TenantPort
    properties:
      ControlPlaneIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      IPPool: {get_param: NovaComputeIPs}
      NodeIndex: {get_param: NodeIndex}

  ManagementPort:
    type: OS::TripleO::Compute::Ports::ManagementPort
    properties:
      ControlPlaneIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      IPPool: {get_param: NovaComputeIPs}
      NodeIndex: {get_param: NodeIndex}

  NetIpMap:
    type: OS::TripleO::Network::Ports::NetIpMap
    properties:
      ControlPlaneIp: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      ExternalIp: {get_attr: [ExternalPort, ip_address]}
      ExternalIpSubnet: {get_attr: [ExternalPort, ip_subnet]}
      ExternalIpUri: {get_attr: [ExternalPort, ip_address_uri]}
      InternalApiIp: {get_attr: [InternalApiPort, ip_address]}
      InternalApiIpSubnet: {get_attr: [InternalApiPort, ip_subnet]}
      InternalApiIpUri: {get_attr: [InternalApiPort, ip_address_uri]}
      StorageIp: {get_attr: [StoragePort, ip_address]}
      StorageIpSubnet: {get_attr: [StoragePort, ip_subnet]}
      StorageIpUri: {get_attr: [StoragePort, ip_address_uri]}
      StorageMgmtIp: {get_attr: [StorageMgmtPort, ip_address]}
      StorageMgmtIpSubnet: {get_attr: [StorageMgmtPort, ip_subnet]}
      StorageMgmtIpUri: {get_attr: [StorageMgmtPort, ip_address_uri]}
      TenantIp: {get_attr: [TenantPort, ip_address]}
      TenantIpSubnet: {get_attr: [TenantPort, ip_subnet]}
      TenantIpUri: {get_attr: [TenantPort, ip_address_uri]}
      ManagementIp: {get_attr: [ManagementPort, ip_address]}
      ManagementIpSubnet: {get_attr: [ManagementPort, ip_subnet]}
      ManagementIpUri: {get_attr: [ManagementPort, ip_address_uri]}

  NetHostMap:
    type: OS::Heat::Value
    properties:
      type: json
      value:
        external:
          fqdn:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - external
              - {get_param: CloudDomain}
          short:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - external
        internal_api:
          fqdn:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - internalapi
              - {get_param: CloudDomain}
          short:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - internalapi
        storage:
          fqdn:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - storage
              - {get_param: CloudDomain}
          short:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - storage
        storage_mgmt:
          fqdn:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - storagemgmt
              - {get_param: CloudDomain}
          short:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - storagemgmt
        tenant:
          fqdn:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - tenant
              - {get_param: CloudDomain}
          short:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - tenant
        management:
          fqdn:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - management
              - {get_param: CloudDomain}
          short:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - management
        ctlplane:
          fqdn:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - ctlplane
              - {get_param: CloudDomain}
          short:
            list_join:
            - '.'
            - - {get_attr: [NovaCompute, name]}
              - ctlplane

  PreNetworkConfig:
    type: OS::TripleO::Compute::PreNetworkConfig
    properties:
      server: {get_resource: NovaCompute}

  NetworkConfig:
    type: OS::TripleO::Compute::Net::SoftwareConfig
    properties:
      ControlPlaneIp: {get_attr: [NovaCompute, networks, ctlplane, 0]}
      ExternalIpSubnet: {get_attr: [ExternalPort, ip_subnet]}
      InternalApiIpSubnet: {get_attr: [InternalApiPort, ip_subnet]}
      StorageIpSubnet: {get_attr: [StoragePort, ip_subnet]}
      StorageMgmtIpSubnet: {get_attr: [StorageMgmtPort, ip_subnet]}
      TenantIpSubnet: {get_attr: [TenantPort, ip_subnet]}
      ManagementIpSubnet: {get_attr: [ManagementPort, ip_subnet]}

  NetworkDeployment:
    type: OS::TripleO::SoftwareDeployment
    depends_on: PreNetworkConfig
    properties:
      name: NetworkDeployment
      actions:
        if:
          - server_not_blacklisted
          - {get_param: NetworkDeploymentActions}
          - []
      config: {get_resource: NetworkConfig}
      server: {get_resource: NovaCompute}
      input_values:
        bridge_name: {get_param: NeutronPhysicalBridge}
        interface_name: {get_param: NeutronPublicInterface}

  NovaComputeUpgradeInitConfig:
    type: OS::Heat::SoftwareConfig
    properties:
      group: script
      config:
        list_join:
        - ''
        - - "#!/bin/bash\n\n"
          - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
          - get_param: UpgradeInitCommand
          - get_param: UpgradeInitCommonCommand

  # Note we may be able to make this conditional on UpgradeInitCommandNotEmpty
  # but https://bugs.launchpad.net/heat/+bug/1649900 needs fixing first
  NovaComputeUpgradeInitDeployment:
    type: OS::Heat::SoftwareDeployment
    depends_on: NetworkDeployment
    properties:
      name: NovaComputeUpgradeInitDeployment
      actions:
        if:
          - server_not_blacklisted
          - ['CREATE', 'UPDATE']
          - []
      server: {get_resource: NovaCompute}
      config: {get_resource: NovaComputeUpgradeInitConfig}

  NovaComputeConfig:
    type: OS::Heat::StructuredConfig
    properties:
      group: hiera
      config:
        hierarchy:
          - '"%{::uuid}"'
          - heat_config_%{::deploy_config_name}
          - compute_extraconfig
          - extraconfig
          - service_names
          - service_configs
          - compute
          - bootstrap_node # provided by allNodesConfig
          - all_nodes # provided by allNodesConfig
          - vip_data # provided by allNodesConfig
          - '"%{::osfamily}"'
          - neutron_bigswitch_data # Optionally provided by ComputeExtraConfigPre
          - cisco_n1kv_data  # Optionally provided by ComputeExtraConfigPre
          - nova_nuage_data  # Optionally provided by ComputeExtraConfigPre
          - midonet_data # Optionally provided by AllNodesExtraConfig
          - neutron_opencontrail_data  # Optionally provided by ComputeExtraConfigPre
          - cisco_aci_data # Optionally provided by ComputeExtraConfigPre
        merge_behavior: deeper
        datafiles:
          service_names:
            service_names: {get_param: ServiceNames}
            sensu::subscriptions: {get_param: MonitoringSubscriptions}
          service_configs:
            map_replace:
              - {get_param: ServiceConfigSettings}
              - values: {get_attr: [NetIpMap, net_ip_map]}
          compute_extraconfig: {get_param: NovaComputeExtraConfig}
          extraconfig: {get_param: ExtraConfig}
          compute:
            tripleo::packages::enable_upgrade: {get_input: enable_package_upgrade}
            fqdn_internal_api: {get_attr: [NetHostMap, value, internal_api, fqdn]}
            fqdn_storage: {get_attr: [NetHostMap, value, storage, fqdn]}
            fqdn_storage_mgmt: {get_attr: [NetHostMap, value, storage_mgmt, fqdn]}
            fqdn_tenant: {get_attr: [NetHostMap, value, tenant, fqdn]}
            fqdn_management: {get_attr: [NetHostMap, value, management, fqdn]}
            fqdn_ctlplane: {get_attr: [NetHostMap, value, ctlplane, fqdn]}

  NovaComputeDeployment:
    type: OS::TripleO::SoftwareDeployment
    depends_on: NovaComputeUpgradeInitDeployment
    properties:
      name: NovaComputeDeployment
      actions:
        if:
          - server_not_blacklisted
          - ['CREATE', 'UPDATE']
          - []
      config: {get_resource: NovaComputeConfig}
      server: {get_resource: NovaCompute}
      input_values:
        enable_package_upgrade: {get_attr: [UpdateDeployment, update_managed_packages]}

  # Resource for site-specific injection of root certificate
  NodeTLSCAData:
    depends_on: NovaComputeDeployment
    type: OS::TripleO::NodeTLSCAData
    properties:
      server: {get_resource: NovaCompute}

  # Hook for site-specific additional pre-deployment config, e.g extra hieradata
  ComputeExtraConfigPre:
    depends_on: NovaComputeDeployment
    type: OS::TripleO::ComputeExtraConfigPre
    properties:
        server: {get_resource: NovaCompute}

  # Hook for site-specific additional pre-deployment config,
  # applying to all nodes, e.g node registration/unregistration
  NodeExtraConfig:
    depends_on: [ComputeExtraConfigPre, NodeTLSCAData]
    type: OS::TripleO::NodeExtraConfig
    properties:
        server: {get_resource: NovaCompute}

  UpdateConfig:
    type: OS::TripleO::Tasks::PackageUpdate

  UpdateDeployment:
    type: OS::Heat::SoftwareDeployment
    depends_on: NetworkDeployment
    properties:
      name: UpdateDeployment
      actions:
        if:
          - server_not_blacklisted
          - ['CREATE', 'UPDATE']
          - []
      config: {get_resource: UpdateConfig}
      server: {get_resource: NovaCompute}
      input_values:
        update_identifier:
          get_param: UpdateIdentifier

  SshHostPubKey:
    type: OS::TripleO::Ssh::HostPubKey
    depends_on: NovaComputeDeployment
    properties:
        server: {get_resource: NovaCompute}

outputs:
  ip_address:
    description: IP address of the server in the ctlplane network
    value: {get_attr: [NovaCompute, networks, ctlplane, 0]}
  external_ip_address:
    description: IP address of the server in the external network
    value: {get_attr: [ExternalPort, ip_address]}
  internal_api_ip_address:
    description: IP address of the server in the internal_api network
    value: {get_attr: [InternalApiPort, ip_address]}
  storage_ip_address:
    description: IP address of the server in the storage network
    value: {get_attr: [StoragePort, ip_address]}
  storage_mgmt_ip_address:
    description: IP address of the server in the storage_mgmt network
    value: {get_attr: [StorageMgmtPort, ip_address]}
  tenant_ip_address:
    description: IP address of the server in the tenant network
    value: {get_attr: [TenantPort, ip_address]}
  management_ip_address:
    description: IP address of the server in the management network
    value: {get_attr: [ManagementPort, ip_address]}
  hostname:
    description: Hostname of the server
    value: {get_attr: [NovaCompute, name]}
  hostname_map:
    description: Mapping of network names to hostnames
    value:
      external: {get_attr: [NetHostMap, value, external, fqdn]}
      internal_api: {get_attr: [NetHostMap, value, internal_api, fqdn]}
      storage: {get_attr: [NetHostMap, value, storage, fqdn]}
      storage_mgmt: {get_attr: [NetHostMap, value, storage_mgmt, fqdn]}
      tenant: {get_attr: [NetHostMap, value, tenant, fqdn]}
      management: {get_attr: [NetHostMap, value, management, fqdn]}
      ctlplane: {get_attr: [NetHostMap, value, ctlplane, fqdn]}
  hosts_entry:
    description: >
      Server's IP address and hostname in the /etc/hosts format
    value:
      str_replace:
        template: |
          PRIMARYIP PRIMARYHOST.DOMAIN PRIMARYHOST
          EXTERNALIP EXTERNALHOST.DOMAIN EXTERNALHOST
          INTERNAL_APIIP INTERNAL_APIHOST.DOMAIN INTERNAL_APIHOST
          STORAGEIP STORAGEHOST.DOMAIN STORAGEHOST
          STORAGE_MGMTIP STORAGE_MGMTHOST.DOMAIN STORAGE_MGMTHOST
          TENANTIP TENANTHOST.DOMAIN TENANTHOST
          MANAGEMENTIP MANAGEMENTHOST.DOMAIN MANAGEMENTHOST
          CTLPLANEIP CTLPLANEHOST.DOMAIN CTLPLANEHOST
        params:
          PRIMARYIP: {get_attr: [NetIpMap, net_ip_map, {get_param: [ServiceNetMap, ComputeHostnameResolveNetwork]}]}
          DOMAIN: {get_param: CloudDomain}
          PRIMARYHOST: {get_attr: [NovaCompute, name]}
          EXTERNALIP: {get_attr: [ExternalPort, ip_address]}
          EXTERNALHOST: {get_attr: [NetHostMap, value, external, short]}
          INTERNAL_APIIP: {get_attr: [InternalApiPort, ip_address]}
          INTERNAL_APIHOST: {get_attr: [NetHostMap, value, internal_api, short]}
          STORAGEIP: {get_attr: [StoragePort, ip_address]}
          STORAGEHOST: {get_attr: [NetHostMap, value, storage, short]}
          STORAGE_MGMTIP: {get_attr: [StorageMgmtPort, ip_address]}
          STORAGE_MGMTHOST: {get_attr: [NetHostMap, value, storage_mgmt, short]}
          TENANTIP: {get_attr: [TenantPort, ip_address]}
          TENANTHOST: {get_attr: [NetHostMap, value, tenant, short]}
          MANAGEMENTIP: {get_attr: [ManagementPort, ip_address]}
          MANAGEMENTHOST: {get_attr: [NetHostMap, value, management, short]}
          CTLPLANEIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
          CTLPLANEHOST: {get_attr: [NetHostMap, value, ctlplane, short]}
  known_hosts_entry:
    description: Entry for ssh known hosts
    value:
      str_replace:
        template: "PRIMARYIP,PRIMARYHOST.DOMAIN,PRIMARYHOST,\
EXTERNALIP,EXTERNALHOST.DOMAIN,EXTERNALHOST,\
INTERNAL_APIIP,INTERNAL_APIHOST.DOMAIN,INTERNAL_APIHOST,\
STORAGEIP,STORAGEHOST.DOMAIN,STORAGEHOST,\
STORAGE_MGMTIP,STORAGE_MGMTHOST.DOMAIN,STORAGE_MGMTHOST,\
TENANTIP,TENANTHOST.DOMAIN,TENANTHOST,\
MANAGEMENTIP,MANAGEMENTHOST.DOMAIN,MANAGEMENTHOST,\
CTLPLANEIP,CTLPLANEHOST.DOMAIN,CTLPLANEHOST HOSTSSHPUBKEY"
        params:
          PRIMARYIP: {get_attr: [NetIpMap, net_ip_map, {get_param: [ServiceNetMap, ComputeHostnameResolveNetwork]}]}
          DOMAIN: {get_param: CloudDomain}
          PRIMARYHOST: {get_attr: [NovaCompute, name]}
          EXTERNALIP: {get_attr: [ExternalPort, ip_address]}
          EXTERNALHOST: {get_attr: [NetHostMap, value, external, short]}
          INTERNAL_APIIP: {get_attr: [InternalApiPort, ip_address]}
          INTERNAL_APIHOST: {get_attr: [NetHostMap, value, internal_api, short]}
          STORAGEIP: {get_attr: [StoragePort, ip_address]}
          STORAGEHOST: {get_attr: [NetHostMap, value, storage, short]}
          STORAGE_MGMTIP: {get_attr: [StorageMgmtPort, ip_address]}
          STORAGE_MGMTHOST: {get_attr: [NetHostMap, value, storage_mgmt, short]}
          TENANTIP: {get_attr: [TenantPort, ip_address]}
          TENANTHOST: {get_attr: [NetHostMap, value, tenant, short]}
          MANAGEMENTIP: {get_attr: [ManagementPort, ip_address]}
          MANAGEMENTHOST: {get_attr: [NetHostMap, value, management, short]}
          CTLPLANEIP: {get_attr: [NovaCompute, networks, ctlplane, 0]}
          CTLPLANEHOST: {get_attr: [NetHostMap, value, ctlplane, short]}
          HOSTSSHPUBKEY: {get_attr: [SshHostPubKey, ecdsa]}
  nova_server_resource:
    description: Heat resource handle for the Nova compute server
    value:
      {get_resource: NovaCompute}
    condition: server_not_blacklisted