Run postgresql backuper

It only creates database dumps, but does not send them anywhere yet.

backups.yml

@@ -0,0 +1,4 @@
+- hosts: webservers
+  roles:
+    - name: backups
+      postgres_password: "{{ postgresql_users.postgres }}"

roles/backups/meta/argument_specs.yml

@@ -0,0 +1,6 @@
+argument_specs:
+  main:
+    options:
+      postgres_password:
+        type: str
+        required: true

roles/backups/tasks/main.yml

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+- name: Copy pgpass file
+  become: true
+  ansible.builtin.template:
+    src: pgpass.j2
+    dest: /root/.pgpass
+    mode: "0600"
+    owner: root
+- name: Create postgresql backups volume
+  become: true
+  community.docker.docker_volume:
+    name: postgresql-backups
+- name: Run postgresql backuper
+  become: true
+  community.docker.docker_container:
+    name: postgresql-backuper-1
+    image: git.comfycamp.space/lumin/postgresql-backuper:v0.0.3
+    volumes:
+      - postgresql-backups:/backups
+      - /root/.pgpass:/root/.pgpass:ro
+    env:
+      CUSTOM_ARGS: "-U postgres -h postgresql --no-password"
+      BACKUPS_DIR: /backups
+      BACKUP_INTERVAL: 24h
+    networks:
+      - name: postgresql
+    restart_policy: unless-stopped

roles/backups/templates/pgpass.j2

@@ -0,0 +1 @@
+postgresql:5432:*:postgres:{{ postgres_password }}