{# https://github.com/prodrigestivill/docker-postgres-backup-local #}
{% macro postgres(name, user, pass, db, networks, schedule="@daily", version="15") %}
  {{ name | mandatory | string }}:
    image: postgres:{{ version | mandatory }}
    restart: unless-stopped
    environment:
      - POSTGRES_USER={{ user | mandatory }}
      - POSTGRES_DB={{ db | mandatory }}
      - POSTGRES_PASSWORD={{ pass | mandatory }}
      - POSTGRES_INITDB_ARGS=--encoding=UTF-8 --lc-collate=C --lc-ctype=C
    networks: {{ networks | mandatory | list | union(["postgres"]) | sort }}
    volumes:
      - {{ name | string | lower }}_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready", "-U", "{{ user }}"]
      interval: 10s
      timeout: 5s
      retries: 5
  {{ name | mandatory | string }}_pgbackup:
    image: prodrigestivill/postgres-backup-local:latest
    restart: unless-stopped
    volumes:
      - "/opt/pgbackups/${COMPOSE_PROJECT_NAME}/:/backups:z"
    networks:
      - postgres
    depends_on:
      - {{ name | mandatory | string }}
    environment:
      - POSTGRES_HOST={{ name | mandatory | string }}
      - POSTGRES_USER={{ user | mandatory }}
      - POSTGRES_DB={{ db | mandatory }}
      - POSTGRES_PASSWORD={{ pass | mandatory }}
      - POSTGRES_EXTRA_OPTS=-Z6 --schema=public --blobs
      - REMOVE_BEFORE=3 # keep 3 days of backups
      - SCHEDULE={{ schedule | mandatory }}
{% endmacro %}