---
# Tasks for the moby_engine role on Fedora 32

# Infrastructure
# Ansible instructions to deploy the infrastructure
# Copyright (C) 2020       Saibotk
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

- name: Install moby-engine.
  package:
    name: 'moby-engine'
    state: 'present'
  become: true
  notify: Restart docker service

- name: Ensure Docker is started and enabled at boot.
  service:
    name: docker
    state: "{{ moby_engine_docker_service_state }}"
    enabled: "{{ moby_engine_docker_service_enabled }}"
  become: true

- name: Check if line is present
  shell: cat /etc/default/grub | grep GRUB_CMDLINE_LINUX_DEFAULT
  changed_when: false
  ignore_errors: true
  register: moby_engine_grub_default

- name: Ensure that GRUB_CMDLINE_LINUX_DEFAULT is present
  lineinfile:
    path: /etc/default/grub
    regexp: '^GRUB_CMDLINE_LINUX_DEFAULT'
    line: 'GRUB_CMDLINE_LINUX_DEFAULT=""'
  become: true
  notify: Regenerate grub config
  when: moby_engine_grub_default.rc != 0

# This method will only add the parameter if it was not already added
# NOTICE: If the parameter was manually added, it will not be altered!
- name: Enable legacy cgroup v1 support (to allow CPU/RAM limits etc)
  replace:
    path: /etc/default/grub
    regexp: '^GRUB_CMDLINE_LINUX_DEFAULT=\"((?:(?!systemd\.unified_cgroup_hierarchy=).)*?)"$'
    replace: 'GRUB_CMDLINE_LINUX_DEFAULT="\1 systemd.unified_cgroup_hierarchy=0"'
  become: true
  notify: Regenerate grub config