rpc-inventory.yml

# ansible-playbook -i $THISFILE network_config.yml

all_systems:
  vars:
    rax_systemd_resolved:
      DNS: "69.20.0.164"
      FallbackDNS: "69.20.0.196 208.67.222.222 8.8.8.8"
      Cache: yes

  children:
    rpc_infra:
      hosts:
        727474-infra01:
          ansible_host: 10.143.47.132
          host_addr: 10.240.0.199
          host_gw: 10.240.0.1
          host_netmask: 255.255.252.0
          snet_addr: "{{ ansible_host }}"
          snet_netmask: 255.255.255.224
          management_addr: 172.30.0.51
          management_netmask: 255.255.252.0
          tunnel_addr: 172.31.4.51
          tunnel_netmask: 255.255.252.0
          storage_addr: 172.30.8.51
          storage_netmask: 255.255.252.0

        727475-infra02:
          ansible_host: 10.143.47.133
          host_addr: 10.240.0.201
          host_gw: 10.240.0.1
          host_netmask: 255.255.252.0
          snet_addr: "{{ ansible_host }}" 
          snet_netmask: 255.255.255.224
          management_addr: 172.30.0.52
          management_netmask: 255.255.252.0
          tunnel_addr: 172.31.4.52
          tunnel_netmask: 255.255.252.0
          storage_addr: 172.30.8.52
          storage_netmask: 255.255.252.0

        727476-infra03:
          ansible_host: 10.143.47.134
          host_addr: 10.240.0.193
          host_gw: 10.240.0.1
          host_netmask: 255.255.252.0
          snet_addr: "{{ ansible_host }}" 
          snet_netmask: 255.255.255.224
          management_addr: 172.30.0.53
          management_netmask: 255.255.252.0
          tunnel_addr: 172.31.4.53
          tunnel_netmask: 255.255.252.0
          storage_addr: 172.30.8.53
          storage_netmask: 255.255.252.0

    rpc_compute:
      hosts: {}

    rpc_storage:
      hosts: {}

rpc-networkd-config.yml

---
- name: Create a systemd-networkd interfaces
  hosts: all_systems
  become: true
  gather_facts: true
  post_tasks:
    - name: Notice
      debug:
        run_once: true
        msg: >-
          Network setup complete, to finalize the config login to
          each host and enable `systemd-networkd` then reboot the
          machine. This can be done with simple commands:
          `systemctl enable systemd-networkd && shutdown -r now`.

  pre_tasks:
    - name: Check for ENI file
      stat:
        path: /etc/network/interfaces
      register: eni_check

    - name: Backup old ENI file
      command: mv /etc/network/interfaces /etc/network/interfaces.old
      args:
        creates: /etc/network/interfaces.old
      when: 
        - eni_check.stat.exists | bool

  roles:
    - role: "systemd_networkd"
      when:
        - inventory_hostname in groups['rpc_infra']
      systemd_run_networkd: false
      systemd_networkd_prefix: "osa"
      systemd_interface_cleanup: false
      systemd_netdevs:
        # LXC setup, dummy interface is set into empty bridge
        - NetDev:
            Name: dummy-lxcbr0
            Kind: dummy
        - NetDev:
            Name: lxcbr0
            Kind: bridge
      systemd_networks:
        - interface: "dummy-lxcbr0"
          bridge: "lxcbr0"
        # LXC setup, this IP address is statically defined and the same on all hosts for every deployment
        - interface: "lxcbr0"
          address: "10.0.3.1"
          netmask: "255.255.255.0"
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

    - role: "systemd_networkd"
      systemd_run_networkd: false
      systemd_networkd_prefix: "rpc"
      systemd_interface_cleanup: true

      systemd_resolved: "{{ rax_systemd_resolved }}"

      systemd_netdevs:
        # Bond setup
        - NetDev:
            Name: bond0
            Kind: bond
          Bond:
            Mode: active-backup
            PrimaryReselectPolicy: always
            MIIMonitorSec: 1s

        # Vlan configuration setup
        - NetDev:
            Name: bond0.1246
            Kind: vlan
          VLAN:
            Id: 1246
        - NetDev:
            Name: bond0.1249
            Kind: vlan
          VLAN:
            Id: 1249
        - NetDev:
            Name: bond0.1251
            Kind: vlan
          VLAN:
            Id: 1251
        
        # Bridge device setup
        - NetDev:
            Name: br-mgmt
            Kind: bridge
        - NetDev:
            Name: br-storage
            Kind: bridge
        - NetDev:
            Name: br-vxlan
            Kind: bridge
        - NetDev:
            Name: br-vlan
            Kind: bridge

      systemd_networks:
        # Loopback Network
        - interface: "lo"
          address: 127.0.1.1
          netmask: 255.0.0.0

        # "CONTAINER" network
        - interface: "bond0.1246"
          bridge: "br-mgmt"
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        - interface: "br-mgmt"
          address: "{{ management_addr }}"
          netmask: "{{ management_netmask }}"
          usedns: true
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        # "STORAGE" network
        - interface: "bond0.1249"
          bridge: "br-storage"
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        - interface: "br-storage"
          address: "{{ storage_addr }}"
          netmask: "{{ storage_netmask }}"
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        # "TUNNEL" network
        - interface: "bond0.1251"
          bridge: "br-vxlan"
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        - interface: "br-vxlan"
          address: "{{ tunnel_addr }}"
          netmask: "{{ tunnel_netmask }}"
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        # "VLAN" network
        - interface: "bond0"
          bridge: "br-vlan"
          config_overrides:
            Network:
              VLAN: 
                ? bond0.1246
                ? bond0.1249
                ? bond0.1251
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        - interface: "br-vlan"
          address: "{{ host_addr }}"
          netmask: "{{ host_netmask }}"
          gateway: "{{ host_gw }}"
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true

        # Physical network configs
        - interface: "em1"
          bond: "bond0"

        - interface: "em3"
          address: "{{ snet_addr }}"
          netmask: "{{ snet_netmask }}"
          usedns: true
          config_overrides:
            Network:
              ConfigureWithoutCarrier: true
              IgnoreCarrierLoss: true