PostgreSQL Backup

pg-bkup is a Docker container image that can be used to backup and restore Postgres database. It supports local storage, AWS S3 or any S3 Alternatives for Object Storage, and SSH compatible storage. It also supports encrypting your backups using GPG.

The jkaninda/pg-bkup Docker image can be deployed on Docker, Docker Swarm and Kubernetes. It handles recurring backups of postgres database on Docker and can be deployed as CronJob on Kubernetes using local, AWS S3 or SSH compatible storage.

It also supports encrypting your backups using GPG.

• Docker
• Kubernetes

Documentation is found at https://jkaninda.github.io/pg-bkup

Links:

• Docker Hub
• Github

MySQL solution :

• MySQL

Storage:

• Local
• AWS S3 or any S3 Alternatives for Object Storage
• SSH

Quickstart

Simple backup using Docker CLI

To run a one time backup, bind your local volume to /backup in the container and run the pg-bkup backup command:

 docker run --rm --network your_network_name \
 -v $PWD/backup:/backup/ \
 -e "DB_HOST=dbhost" \
 -e "DB_USERNAME=username" \
 -e "DB_PASSWORD=password" \
 jkaninda/pg-bkup  pg-bkup backup -d database_name

Alternatively, pass a --env-file in order to use a full config as described below.

Simple backup in docker compose file

services:
  pg-bkup:
    # In production, it is advised to lock your image tag to a proper
    # release version instead of using `latest`.
    # Check https://github.com/jkaninda/pg-bkup/releases
    # for a list of available releases.
    image: jkaninda/pg-bkup
    container_name: pg-bkup
    command:
      - /bin/sh
      - -c
      - pg-bkup backup
    volumes:
      - ./backup:/backup
    environment:
      - DB_PORT=5432
      - DB_HOST=postgres
      - DB_NAME=foo
      - DB_USERNAME=bar
      - DB_PASSWORD=password
    # pg-bkup container must be connected to the same network with your database
    networks:
       - web
networks:
  web:

Deploy on Kubernetes

For Kubernetes, you don't need to run it in scheduled mode. You can deploy it as CronJob.

Simple Kubernetes CronJob usage:

apiVersion: batch/v1
kind: CronJob
metadata:
  name: bkup-job
spec:
  schedule: "0 1 * * *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: pg-bkup
            image: jkaninda/pg-bkup
            command:
            - /bin/sh
            - -c
            - pg-bkup backup -s s3 --path /custom_path
            env:
              - name: DB_PORT
                value: "5432" 
              - name: DB_HOST
                value: ""
              - name: DB_NAME
                value: ""
              - name: DB_USERNAME
                value: ""
              # Please use secret!
              - name: DB_PASSWORD
                value: ""
              - name: AWS_S3_ENDPOINT
                value: "https://s3.amazonaws.com"
              - name: AWS_S3_BUCKET_NAME
                value: "xxx"
              - name: AWS_REGION
                value: "us-west-2"    
              - name: AWS_ACCESS_KEY
                value: "xxxx"        
              - name: AWS_SECRET_KEY
                value: "xxxx"    
              - name: AWS_DISABLE_SSL
                value: "false"
          restartPolicy: Never

Available image registries

This Docker image is published to both Docker Hub and the GitHub container registry. Depending on your preferences and needs, you can reference both jkaninda/pg-bkup as well as ghcr.io/jkaninda/pg-bkup:

docker pull jkaninda/pg-bkup:v1.0
docker pull ghcr.io/jkaninda/pg-bkup:v1.0

Documentation references Docker Hub, but all examples will work using ghcr.io just as well.

Supported Engines

This image is developed and tested against the Docker CE engine and Kubernetes exclusively. While it may work against different implementations, there are no guarantees about support for non-Docker engines.

References

We decided to publish this image as a simpler and more lightweight alternative because of the following requirements:

• The original image is based on ubuntu and requires additional tools, making it heavy.
• This image is written in Go.
• arm64 and arm/v7 architectures are supported.
• Docker in Swarm mode is supported.
• Kubernetes is supported.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Authors

Jonas Kaninda

• https://github.com/jkaninda

Copyright

Copyright (c) [2023] [Jonas Kaninda]