ansible/backend.yml

---
- hosts: backend
  vars:
        apt:
                packages:
                        - { package: "postgresql", state: present }
                        - { package: "python3-psycopg2", state: present }
                        - { package: "redis", state: present }
                        - { package: "influxdb", state: present }
        systemd:
                services:
                        - { name: "postgresql@{{ postgres.version }}-main", enabled: true, action: reloaded }
                        - { name: "redis-server", enabled: true, action: restarted }
                        - { name: "influxdb", enabled: true, action: restarted }
                overrides:
                        - "influxdb"
                        - "postgresql@"
                        - "redis-server"
        postgres:
                host: "{{ global.backend.postgres.host }}"
                port: "{{ global.backend.postgres.port }}"
                version: "12"
                # NOTE: If something fails due to the following statement make sure
                # the volume is mounted and the ansible cache is cleared!
                data:
                        path: "/dbs/postgres"
                        #uuid: '28464b32-32f4-42e4-9625-1dddfb65e1a9'
                databases:
                        - grafana
                        - pleroma
                        - gitea
                        - murmur
        redis:
                host: "{{ global.backend.redis.host }}"
                port: "{{ global.backend.redis.port }}"
                data:
                        #uuid: '1245e7d9-1054-4e2f-816a-d38efbb47589'
                        path: "/dbs/redis"
        influxdb:
                data:
                        path: "/var/lib/influxdb"
                        uuid: "ac0740fe-abab-4bda-84ef-e39e0bd823b3"
                port: "{{ global.backend.influxdb.port }}"
        vault:
                roles:
                        - "postgresql"
        mounts:
                - { uuid: '{{ influxdb.data.uuid }}', dest: '{{ influxdb.data.path }}', state: 'mounted', fstype: 'ext4' }
  roles:
        - vault
        - mounts
        - apt
        - postgresql
        - influxdb
        - redis
        - systemd