ansible-roles/redis/tasks/main.yml

---

- set_fact:
    redis_restart_handler_name: "{{ redis_restart_if_needed | ternary('restart redis', 'restart redis (noop)') }}"

- name: Redis is installed.
  apt:
    name: "{{ item }}"
    state: present
  with_items:
    - redis-server
    - redis-tools
  tags:
    - redis
    - packages

- name: Get Redis version
  shell: "redis-server -v | grep -Eo '(v=\\S+)' | cut -d'=' -f 2 | grep -E '^([0-9]|\\.)+$'"
  changed_when: false
  check_mode: no
  register: _redis_installed_version
  tags:
    - redis

- set_fact:
    redis_installed_version: "{{ _redis_installed_version.stdout }}"
  check_mode: no
  tags:
    - redis

- include: instances.yml
  when: redis_instance_name is defined

- name: Redis is configured.
  template:
    src: redis.conf.j2
    dest: "{{ redis_conf_path }}"
    mode: "0644"
  notify: "{{ redis_restart_handler_name }}"
  when: redis_instance_name is not defined
  tags:
    - redis

- name: Redis is running and enabled on boot.
  systemd:
    name: "{{ redis_daemon }}"
    enabled: yes
    state: started
  when: redis_instance_name is not defined
  tags:
    - redis

- name: Is Munin installed
  stat:
    path: /etc/munin/plugins
  register: _munin_installed
  tags:
    - redis
    - munin

- include: munin.yml
  when:
    - _munin_installed.stat.exists
    - _munin_installed.stat.isdir
    - redis_instance_name is not defined
  tags:
    - redis
    - munin

- include: munin-instances.yml
  when:
    - _munin_installed.stat.exists
    - _munin_installed.stat.isdir
    - redis_instance_name is defined
  tags:
    - redis
    - munin

- name: is NRPE present ?
  stat:
    path: /etc/nagios/nrpe.d/evolix.cfg
  check_mode: no
  register: nrpe_evolix_config
  tags:
    - redis
    - nrpe

- include: nrpe_stretch.yml
  when: ansible_distribution_release == "stretch" and nrpe_evolix_config.stat.exists == true
  tags:
    - redis
    - nrpe

- name: Force restart redis
  command: /bin/true
  notify: restart redis
  when: redis_restart_force