dokku-ansible-deploy/plays/lib/database.yml

---
- name: Setup database facts
  set_fact:
    mount_map:
      mariadb: /var/lib/mysql

- name: Run database setup tasks
  block:
    - name: "Create {{ item.type }} database"
      no_log: true
      shell: "
        dokku
        {{ item.type }}:create
        {{ app }}
        --password {{ item.passwd }}
        --root-password {{ item.root_passwd }}
      "
      args:
        creates: "/var/lib/dokku/services/{{ item.type }}/{{ app }}"

    - name: "Link {{ item.type }} database to application"
      dokku_service_link:
        app: "{{ app }}"
        name: "{{ app }}"
        service: "{{ item.type }}"

    - name: "Specify {{ item.type }} volume mounts"
      dokku_storage:
        app: "{{ app }}"
        mounts:
          - "/var/lib/dokku/services/{{ item.type }}/{{ app }}:{{ mount_map[item.type] }}"