/home/zuul/src/opendev.org/openstack/openstack-ansible-lxc_hosts/tasks/lxc_net.yml
---
# Copyright 2014, Rackspace US, Inc.
#
# 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.

# NOTE(mhayden): One of three exit codes should be returned.
#   0 = service is running
#   3 = service is installed, but not running
#   4 = service is not installed, and not running
- name: Check if NetworkManager is running
  command: systemctl status NetworkManager
  changed_when: false
  failed_when: false
  register: networkmanager_check
  tags:
    - skip_ansible_lint

- name: Ensure network services wait on networking (if using NetworkManager)
  service:
    name: NetworkManager-wait-online.service
    enabled: yes
  when: networkmanager_check.rc == 0

- name: Drop lxc net bridge
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: "root"
    group: "root"
    mode: "{{ item.mode | default('0644') }}"
  with_items: "{{ lxc_cached_network_interfaces }}"
  notify:
    - Restart bridge
    - Reload networkd
  tags:
    - lxc-files
    - lxc-net
    - lxc-bridge
    - lxc-interfaces

# NOTE(cloudnull): This task cleans up an old post up script that is no longer
#                  used. Remove this task in "R".
- name: Remove old post up script
  file:
    path: "/etc/sysconfig/network-scripts/ifup-post-{{ lxc_net_bridge }}"
    state: "absent"

- name: Drop lxc net bridge routes (SUSE)
  template:
    src: "lxc-net-suse-routes.cfg.j2"
    dest: "/etc/sysconfig/network/ifroute-{{ lxc_net_bridge }}"
    owner: "root"
    group: "root"
    mode: "0644"
  when:
    - lxc_net_gateway is not none
    - ansible_pkg_mgr == "zypper"
  notify:
    - Bring bridge up
    - Reload networkd
  tags:
    - lxc-files
    - lxc-net
    - lxc-bridge
    - lxc-interfaces

- name: Create networking post-up and post-down data for Red Hat
  lineinfile:
    dest: "/etc/sysconfig/network-scripts/ifdown-post"
    line: ". /etc/sysconfig/network-scripts/ifdown-post-{{ lxc_net_bridge }}"
    insertbefore: "^exit\ 0$"
  when: ansible_os_family | lower == "redhat"
  notify:
    - Restart bridge
  tags:
    - lxc-post-up
    - lxc-post-down
    - lxc_hosts-config

# NOTE(mhayden): There are ifup hooks that handle the customized LXC container
# networking. Starting lxc-net will trample over these hooks and cause
# networking issues for containers.
# NOTE(prometheanfire): lxc-net is not installed on gentoo
- name: Disable and stop lxc-net
  service:
    name: lxc-net
    enabled: no
    state: stopped
  when:
    - "ansible_distribution | lower != 'gentoo'"
  tags:
    - lxc-net

- name: Mask lxc-net systemd service
  file:
    src: /dev/null
    path: /etc/systemd/system/lxc-net.service
    state: link
  when:
    - "ansible_distribution | lower != 'gentoo'"
  tags:
    - lxc-files
    - lxc-net

# All Debian based systems use the interfaces.d directory for extra network configs
#  this check ensures the needed source line is in the base config file
- name: Ensure networking includes interfaces.d
  lineinfile:
    dest: "/etc/network/interfaces"
    line: "source /etc/network/interfaces.d/*.cfg"
    backup: "yes"
  when:
    - ansible_os_family == "Debian"
  tags:
    - lxc-net
    - lxc-interfaces

- name: Create systemd unit for dnsmasq
  template:
    src: lxc-dnsmasq-systemd-init.j2
    dest: "/etc/systemd/system/lxc-dnsmasq.service"
    owner: root
    group: root
    mode: '0644'
  when:
    - lxc_net_nat | bool
  notify:
    - Reload systemd units
    - Restart dnsmasq

# Check that the container bridge exists, if not bring it up
- name: Check Container Bridge exists
  stat:
    path: "/sys/class/net/{{ lxc_net_bridge }}/bridge/bridge_id"
  register: bridge_check
  failed_when: false
  changed_when: not bridge_check.stat.exists
  notify:
    - Bring bridge up
    - Reload networkd
  tags:
    - lxc-bridge

# Ensure lxc networks are running as they're supposed to
- meta: flush_handlers