playbooks/roles/configure-targethosts/tasks/configure-network-ubuntu16.yml

---
# ============LICENSE_START=======================================================
#  Copyright (C) 2019 The Nordix Foundation. All rights reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
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# SPDX-License-Identifier: Apache-2.0
# ============LICENSE_END=========================================================

- name: Configure modules
  lineinfile:
    dest: /etc/modules
    state: present
    create: yes
    line: "8021q"

- name: Add modules
  modprobe:
    name: 8021q
    state: present

# TODO: we need to look into how to configure with netplan for ubuntu 18
# Today we perform a reboot after network related confiugration changes
# to make sure the changes are persistent and prevent various issues.

- name: Ensure interfaces.d folder is empty
  file:
    state: "{{ item }}"
    path: "/etc/network/interfaces.d"
  with_items:
    - absent
    - directory

- name: Ensure /etc/interfaces can source additional files
  copy:
    content: |
      auto lo
      iface lo inet loopback
      source /etc/network/interfaces.d/*.cfg
    dest: "/etc/network/interfaces"

- name: Compute mapping dict from mac address to device name
  set_fact:
    device_mac_dict: "{{ (device_mac_dict | default({})) | combine({item.macaddress: item.device}) }}"
  loop: "{{ ansible_interfaces | map('regex_replace', '-', '_') | map('regex_replace', '^', 'ansible_') | map('extract', hostvars[inventory_hostname]) |  selectattr('macaddress','defined') | list }}"

- name: Compute mapping dict from mac address to interface name (device name with/without VLAN info)
  set_fact:
    if_mac_dict: "{{ ( if_mac_dict | default({}) ) | combine({item.mac_address: (item.vlan == 'native') | ternary(device_mac_dict[item.mac_address], device_mac_dict[item.mac_address] + '.' + item.vlan) }) }}"
  loop: "{{ node.interfaces }}"

- name: Configure networking for host
  template:
    src: "{{ distribution }}.interface.j2"
    dest: "/etc/network/interfaces.d/{{ item.value }}.cfg"
  loop: "{{ if_mac_dict | dict2items }}"

- name: Ensure systemd resolved.conf has the correct content
  lineinfile:
    path: /etc/systemd/resolved.conf
    regexp: "^#?DNS=.*$"
    line: "DNS={{ idf.net_config[engine.public_network | default('public')].dns | join(' ')}}"
  when: idf.net_config[engine.public_network | default('public')].dns is defined

- name: Reboot the machine
  shell: "sleep 5 && reboot"
  async: 1
  poll: 0

- name: Wait for host to come back to life
  wait_for_connection:
    connect_timeout: 10
    sleep: 5
    delay: 120
    timeout: 300
  register: result
  until: result | succeeded
  retries: 3
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