ansible-roles/redis/tasks/instances.yml

---
- name: Systemd template for redis instances is installed
  copy:
    src: 'redis-server@.service'
    dest: '/etc/systemd/system/'
    mode: "0644"
  tags:
    - redis

- name: Redis SysVinit script is stopped and disabled
  service:
    name: "redis-server"
    enabled: no
    state: stopped
  tags:
    - redis

- name: Set variables for the instance
  set_fact:
    redis_daemon: "redis-server@{{ redis_instance_name }}"
    redis_conf_path: "/etc/redis/redis-{{ redis_instance_name }}.conf"
    redis_unixsocket: "/var/run/redis/{{ redis_instance_name }}/redis.sock"
    redis_pidfile: "/var/run/redis/{{ redis_instance_name }}/{{ redis_daemon }}.pid"
    redis_logfile: "/var/log/redis/{{ redis_instance_name }}/redis-server.log"
    redis_dbdir: "/var/lib/redis/{{ redis_instance_name }}"
  tags:
    - redis

- name: Redis instance configuration file is present.
  template:
    src: redis.conf.j2
    dest: "{{ redis_conf_path }}"
    mode: "0644"
  tags:
    - redis

- name: Redis instance group is present
  group:
    name: "redis-{{ redis_instance_name }}"
    state: present
    system: True
  tags:
    - redis

- name: Redis instance user is present
  user:
    name: "redis-{{ redis_instance_name }}"
    group: "redis-{{ redis_instance_name }}"
    state: present
    system: True
    shell: '/bin/false'
  tags:
    - redis

- name: Ensure redis base folders will be accessible for all instances
  file:
    dest: "{{ item }}"
    state: directory
    mode: "0755"
    owner: "redis"
    group: "redis"
  with_items:
    - "/var/lib/redis"
    - "/var/log/redis"

- name: Instances directories are present
  file:
    dest: "{{ item }}"
    state: directory
    mode: "0755"
    owner: "redis-{{ redis_instance_name }}"
    group: "redis-{{ redis_instance_name }}"
  with_items:
    - "{{ redis_dbdir }}"
    - "{{ redis_logfile | dirname }}"
  tags:
    - redis

- name: Redis systemd unit is enabled and started
  systemd:
    name: "{{ redis_daemon }}"
    enabled: yes
    state: started
    daemon_reload: yes
  tags:
    - redis