version: "2"
services:
  postgres:
    command: "postgres -D /var/lib/postgresql/data"
  redis:
    command: "redis-cli ping"
  api:
    command: "python app.py"
    depends_on: ["postgres", "redis"]
  worker:
    command: "celery worker -A tasks"
    depends_on: ["redis"]
  backup:
    command: "pg_dump mydb > /backups/db-$(date +%Y%m%d).sql"
    cron:
      expression: "0 0 2 * * *"
      timezone: "America/New_York"
    hooks:
      on_stop:
        success:
          command: "curl -X POST https://hooks.slack.com/services/T00/B00/XXX -H 'Content-Type: application/json' -d '{\"text\":\"Backup completed successfully\"}'"
        error:
          command: "curl -X POST https://hooks.slack.com/services/T00/B00/XXX -H 'Content-Type: application/json' -d '{\"text\":\"Backup failed!\"}'"