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README.md

postgres-backup-s3

Backup PostgresSQL to S3 (supports periodic backups)

Usage

Docker:

$ docker run -e S3_ACCESS_KEY_ID=key -e S3_SECRET_ACCESS_KEY=secret -e S3_BUCKET=my-bucket -e S3_PREFIX=backup -e POSTGRES_DATABASE=dbname -e POSTGRES_USER=user -e POSTGRES_PASSWORD=password -e POSTGRES_HOST=localhost schickling/postgres-backup-s3

Docker Compose:

postgres:
  image: postgres
  environment:
    POSTGRES_USER: user
    POSTGRES_PASSWORD: password

pgbackups3:
  image: schickling/postgres-backup-s3
  depends_on:
    - postgres
  links:
    - postgres
  environment:
    SCHEDULE: '@daily'
    S3_REGION: region
    S3_ACCESS_KEY_ID: key
    S3_SECRET_ACCESS_KEY: secret
    S3_BUCKET: my-bucket
    S3_PREFIX: backup
    POSTGRES_BACKUP_ALL: "false"
    POSTGRES_HOST: host
    POSTGRES_DATABASE: dbname
    POSTGRES_USER: user
    POSTGRES_PASSWORD: password
    POSTGRES_EXTRA_OPTS: '--schema=public --blobs'

Automatic Periodic Backups

You can additionally set the SCHEDULE environment variable like -e SCHEDULE="@daily" to run the backup automatically.

More information about the scheduling can be found here.

Backup All Databases

You can backup all available databases by setting POSTGRES_BACKUP_ALL="true".

Single archive with the name all_<timestamp>.sql.gz will be uploaded to S3

Endpoints for S3

An Endpoint is the URL of the entry point for an AWS web service or S3 Compitable Storage Provider.

You can specify an alternate endpoint by setting S3_ENDPOINT environment variable like protocol://endpoint

Note: S3 Compitable Storage Provider requires S3_ENDPOINT environment variable

Encryption

You can additionally set the ENCRYPTION_PASSWORD environment variable like -e ENCRYPTION_PASSWORD="superstrongpassword" to encrypt the backup. It can be decrypted using openssl aes-256-cbc -d -in backup.sql.gz.enc -out backup.sql.gz.