01-netcfg.yaml.j2

# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
  version: 2
  ethernets:
    ens1f0:
      match:
        macaddress: {{ hostvars[inventory_hostname]['interfaces']['ens1f0'] }}
    ens1f1:
      match:
        macaddress: {{ hostvars[inventory_hostname]['interfaces']['ens1f1'] }}
  bonds:
    bond0:
      interfaces: [ens1f0, ens1f1]
      gateway4: {{ hostvars[inventory_hostname]['ansible_default_ipv4']['gateway'] }}
      parameters:
        mode: 802.3ad
        transmit-hash-policy: layer3+4
      nameservers:
        addresses: [93.190.136.10,217.23.0.121]
      addresses:
        - {{ hostvars[inventory_hostname]['ip'] }}/27
        {% if loadbalancer_configs is defined -%}
        # Additional ips for loadbalancer below
        {% for loadbalancer_config in loadbalancer_configs -%}
        - {{ loadbalancer_config['frontend_ip'] }}/27
        {% endfor -%}
        {% endif -%}

handlers.yml

---

- name: Apply netplan
  command: netplan apply

netplan.yml

---

- name: Install ifenslave-2.6
  apt:
    state: present
    pkg:
      - ifenslave-2.6
      - net-tools

- name: Add bonding kernel module
  modprobe:
    name: bonding
    state: present

- name: Ensure bonding is loaded after boot
  lineinfile:
    path: /etc/modules
    line: "bonding"
    state: present

- name: Set netplan config
  template:
    dest: /etc/netplan/01-netcfg.yaml
    src: etc/netplan/01-netcfg.yaml.j2
    owner: root
    group: root
    mode: 0644
  notify: Apply netplan