Lightweight Debian Slim image to automate PostgreSQL (12-18), MariaDB/MySQL, and MongoDB backups via cron.

Features:

• Dynamic client install at startup: only required tools are installed based on your config
• Flexible cron scheduling per backup job
• Automatic gzip compression (.sql.gz / .tar.gz) and timestamped files
• Configurable per-job retention with automatic rotation of old dumps
• Multiple databases (different types and hosts) handled by a single container
• Built-in healthcheck verifying connectivity to every configured database
• Multi-architecture (amd64, arm64) and auto-rebuilt on base image security updates

Setup:

1. Copy backups.conf.example to your appdata directory and rename to backups.conf
2. Edit backups.conf with your databases (one job per line, pipe-delimited)
3. Map the file to /config/backups.conf and a host folder to /backups

See the project README for full configuration syntax and examples.