heat_template_version: rocky
description: >
  Software Config to drive os-net-config for a simple bridge configured with a
  static IP address for the ctlplane network.
parameters:
  ControlPlaneIp:
    default: ''
    description: IP address/subnet on the ctlplane network
    type: string
  {%- for network in networks %}
  {{network.name}}IpSubnet:
    default: ''
    description: IP address/subnet on the {{network.name_lower}} network
    type: string
  {{network.name}}InterfaceRoutes:
    default: []
    description: >
      Routes for the {{network.name_lower}} network traffic.
      JSON route e.g. [{'destination':'10.0.0.0/16', 'nexthop':'10.0.0.1'}]
      Unless the default is changed, the parameter is automatically resolved
      from the subnet host_routes attribute.
    type: json
  {%- endfor %}
  ControlPlaneSubnetCidr:
    default: ''
    description: >
      The subnet CIDR of the control plane network. (The parameter is
      automatically resolved from the ctlplane subnet's cidr attribute.)
    type: string
  ControlPlaneDefaultRoute:
    default: ''
    description: The default route of the control plane network. (The parameter
      is automatically resolved from the ctlplane subnet's gateway_ip attribute.)
    type: string
  ControlPlaneStaticRoutes:
    default: []
    description: >
      Routes for the ctlplane network traffic.
      JSON route e.g. [{'destination':'10.0.0.0/16', 'nexthop':'10.0.0.1'}]
      Unless the default is changed, the parameter is automatically resolved
      from the subnet host_routes attribute.
    type: json
  DnsServers: # Override this via parameter_defaults
    default: []
    description: >
      DNS servers to use for the Overcloud (2 max for some implementations).
      If not set the nameservers configured in the ctlplane subnet's
      dns_nameservers attribute will be used.
    type: comma_delimited_list
  UndercloudLocalMtu: # Override this via parameter_defaults
    default: 1500
    description: MTU to use for the Undercloud local_interface.
    type: number
    constraints:
      - range: { min: 1000, max: 65536 }
  UndercloudNetConfigOverride:
    default: {}
    description: Custom JSON data to be used to override the os-net-config data in this template. This is meant to be used by net_config_override parameter in tripleoclient to provide an easy means to pass in custom net configs for the Undercloud.
    type: json
  EC2MetadataIp: # Here for compatability, not used.
    default: ''
    description: The IP address of the EC2 metadata server. (The parameter
      is automatically resolved from the ctlplane subnet's host_routes attribute.)
    type: string

conditions:
  undercloud_net_config_override:
    not:
      equals: [{get_param: UndercloudNetConfigOverride}, {}]

resources:
  OsNetConfigImpl:
    type: OS::Heat::SoftwareConfig
    properties:
      group: script
      inputs:
        - name: disable_configure_safe_defaults
          default: true
      config:
        str_replace:
          template:
            get_file: network/scripts/run-os-net-config.sh
          params:
            $network_config:
              if:
              - undercloud_net_config_override
              - {get_param: UndercloudNetConfigOverride}
              - network_config:
                - type: ovs_bridge
                  name: br-ctlplane
                  use_dhcp: false
                  dns_servers:
                    get_param: DnsServers
                  ovs_extra:
                    - "br-set-external-id br-ctlplane bridge-id br-ctlplane"
                  addresses:
                  - ip_netmask:
                      list_join:
                      - /
                      - - get_param: ControlPlaneIp
                        - get_param: ControlPlaneSubnetCidr
                  routes: {get_param: ControlPlaneStaticRoutes}
                  members:
                  - type: interface
                    name: interface_name
                    # force the MAC address of the bridge to this interface
                    primary: true
                    mtu: {get_param: UndercloudLocalMtu}
outputs:
  OS::stack_id:
    description: The OsNetConfigImpl resource.
    value:
      get_resource: OsNetConfigImpl