Databases Auto Backup Tool

A lightweight, automated backup solution designed to securely copy your PostgreSQL databases and local directories to any S3-compatible storage (e.g., AWS S3, MinIO, Cloudflare R2, DigitalOcean Spaces) on a defined schedule.

Features

• Automated Scheduling: Define your backup frequency using standard cron schedule expressions.
• Multiple Targets: Built-in support for backing up both PostgreSQL databases and local directories.
• S3 Compatible Storage: Seamlessly upload compressed backups to any S3-compatible bucket.
• Hot-Reload: Automatically detects changes in your config.yaml file. No container restart is required when adjusting your schedules or adding plans.
• History Retention: Automatically retain a maximum number of backups per plan (max_backups) and clean up old ones.
• Containerized for Easy Deployment: Ships with pg_dump and pg_isready built-in inside a lightweight Docker image. No need to install PostgreSQL clients on your host machine.

Getting Started

Prerequisites

Ensure you have the following installed on your machine:

• Docker
• Docker Compose

Installation & Deployment

1. Create a docker-compose.yaml file:

   services:
     backuper:
       container_name: backuper
       image: mimamch/backuper:latest
       restart: unless-stopped
       volumes:
         - ./config.yaml:/app/config.yaml
         - ./logs:/app/logs
   
         # (uncomment code below if you use type: dir)
         # - /path/on/your/host:/app/to-backup/assets

2. Create a config.yaml file:

   Paste and configure your S3 credentials and backup plans.

   storage:
     s3:
       access_key: "your_s3_access_key"
       secret_key: "your_s3_secret_key"
       endpoint: "https://s3.your-region.amazonaws.com"
       region: "auto"
       bucket: "your-backup-bucket"
   
   plans:
     # 1. PostgreSQL Backup Plan Example
     - name: production-postgres
       active: true
       schedule: "0 2 * * *" # Runs every day at 2:00 AM
       max_backups: 5 # Keeps the 5 most recent backups, deletes older ones
       type: postgresql
       postgresql:
         host: db-host-or-ip
         port: 5432
         username: postgres
         password: your-password
         database: my_app_db
   
     # 2. Directory Backup Plan Example
     - name: application-assets
       active: true
       schedule: "0 3 * * 0" # Runs every Sunday at 3:00 AM
       max_backups: 3
       type: dir
       dir:
         path: "/app/to-backup/assets" # Path mapped via volumes in docker-compose.yaml

3. Start the service:

   Run the application in the background. It will automatically read your config.yaml.

   docker compose up -d

Logs and Audits

The system manages local status logs regarding backup success, errors, size metrics, and file locations in the ./logs directory natively mounted by Docker Compose (./logs:/app/logs).

Contributing

Contributions, issues, and feature requests are very welcome! If you'd like to extend the tool (e.g., adding MySQL, Redis, or local storage support):

1. Ensure you have Node.js installed on your machine.
2. Install dependencies: npm install (or you can use pnpm).
3. Create a new handler logic inside src/handler/ that implements the DatabaseHandler type.
4. Run locally in watch mode to test: npm run dev

Submit a Pull Request whenever you are ready!