heat_template_version: rocky
description: >
  Software Config to drive os-net-config for a simple bridge configured with
  external DHCP and 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
  {%- endfor %}
  ControlPlaneSubnetCidr: # Override this via parameter_defaults
    default: '24'
    description: The subnet CIDR of the control plane network.
    type: string
  ControlPlaneDefaultRoute: # Override this via parameter_defaults
    description: The default route of the control plane network.
    type: string
  DnsServers: # Override this via parameter_defaults
    default: []
    description: A list of DNS servers (2 max for some implementations) that will be added to resolv.conf.
    type: comma_delimited_list
  EC2MetadataIp: # Override this via parameter_defaults
    description: The IP address of the EC2 metadata server.
    type: string
resources:
  OsNetConfigImpl:
    type: OS::Heat::SoftwareConfig
    properties:
      group: script
      config:
        str_replace:
          template:
            get_file: network/scripts/run-os-net-config.sh
          params:
            $network_config:
              network_config:
              - type: ovs_bridge
                name: bridge_name
                use_dhcp: true
                members:
                - type: interface
                  name: interface_name
                  # force the MAC address of the bridge to this interface
                  primary: true
              - type: interface
                name: br-ex:0
                addresses:
                - ip_netmask:
                    list_join:
                    - /
                    - - get_param: ControlPlaneIp
                      - get_param: ControlPlaneSubnetCidr
                routes:
                - ip_netmask: 169.254.169.254/32
                  next_hop:
                    get_param: EC2MetadataIp
                - default: true
                  next_hop:
                    get_param: ControlPlaneDefaultRoute
outputs:
  OS::stack_id:
    description: The OsNetConfigImpl resource.
    value:
      get_resource: OsNetConfigImpl