- name: Base setup for lotus-land-story
  hosts: lotus-land-story
  vars_files:
    - vars.yml
  tasks:

    - name: Always mount the lotus-land-story volume
      ansible.builtin.lineinfile:
        dest: /etc/fstab
        line: "{{ linode_volume }} /mnt/lotus-land-story ext4 defaults,noatime,nofail 0 2"
        state: present

    - name: Set hostname
      ansible.builtin.hostname:
        name: lotus-land-story

    - name: Install ansible requirements
      ansible.builtin.apt:
        pkg:
          - docker-compose
          - libpq-dev
          - python3-docker
          - python3-psycopg2
        state: present

- import_playbook: ../playbooks/tailscale.yml # noqa: name[play]
- import_playbook: postgres.yml               # noqa: name[play]
- import_playbook: docker.yml                 # noqa: name[play]

- name: Set up postgres
  hosts: lotus-land-story
  tasks:

    - name: Set up postgres to listen on docker0 interface
      ansible.builtin.lineinfile:
        dest: "/etc/postgresql/13/main/conf.d/listen.conf"
        regexp: '^#?listen_addresses='
        line: "listen_addresses='localhost,{{ docker_ip.address }}'"
        state: present
        create: true
        mode: "0644"
      notify: Restart postgres

  handlers:
    - name: Import restarts
      ansible.builtin.import_tasks: restarts.yml

- import_playbook: prometheus.yml # noqa: name[play]

- name: Set up prometheus user in postgres
  hosts: lotus-land-story
  become: true
  become_user: postgres
  tasks:

    - name: Get postgres roles
      community.postgresql.postgresql_info:
        filter: roles
      register: postgres_info

    - name: Add postgres permissions for postgres-exporter
      community.postgresql.postgresql_query:
        query: |
          CREATE USER prometheus;
          ALTER USER prometheus SET SEARCH_PATH TO prometheus,pg_catalog;

          CREATE SCHEMA prometheus AUTHORIZATION prometheus;

          CREATE FUNCTION prometheus.f_select_pg_stat_activity()
          RETURNS setof pg_catalog.pg_stat_activity
          LANGUAGE sql
          SECURITY DEFINER
          AS $$
            SELECT * from pg_catalog.pg_stat_activity;
          $$;

          CREATE FUNCTION prometheus.f_select_pg_stat_replication()
          RETURNS setof pg_catalog.pg_stat_replication
          LANGUAGE sql
          SECURITY DEFINER
          AS $$
            SELECT * from pg_catalog.pg_stat_replication;
          $$;

          CREATE VIEW prometheus.pg_stat_replication
          AS
            SELECT * FROM prometheus.f_select_pg_stat_replication();

          CREATE VIEW prometheus.pg_stat_activity
          AS
            SELECT * FROM prometheus.f_select_pg_stat_activity();

          GRANT SELECT ON prometheus.pg_stat_replication TO prometheus;
          GRANT SELECT ON prometheus.pg_stat_activity TO prometheus;
      when: "'prometheus' not in postgres_info.roles"

- import_playbook: grafana.yml    # noqa: name[play]
- import_playbook: loki.yml       # noqa: name[play]
- import_playbook: miniflux.yml   # noqa: name[play]
- import_playbook: caddy.yml      # noqa: name[play]
- import_playbook: golink.yml     # noqa: name[play]

# vim: ft=yaml.ansible