skandragon/postgresql-simple-backup repository overview

⁠postgresql-simple-backup

Docker Hub: https://hub.docker.com/repository/docker/skandragon/postgresql-simple-backup⁠ Git: https://github.com/skandragon/postgresql-simple-backup⁠

Simple backup strategy for PostgreSQL, useful for simple installations or non-critical systems.

postgresql-simple-backup is a Docker container which can run once, or loop internally, doing backups of selected database on a target host.

⁠Configuration

Any defaults are shown, but check run.sh just to make sure they are in sync.

All configuration parameters are provided via environment variables.

⁠Connection

These connection parameters must be defined. All databases backed up will share this common configuration.

PGHOST=
PGPORT=5432
PGUSER=
PGPASSWORD=

⁠Databases

A space-separated list of databases to back up.

DATABASES=

⁠Cleanup

Age, in days, when older backups will be removed. If empty, no expiring will happen.

BACKUP_EXPIRE_DAYS=14

If defined as an empty string, it will disable expiration.

⁠Destination

Location where backups will be written. This should be a volume mount.

BACKUP_DESTINATION=/backups

⁠Schedule

Back up pause. This specifies the delay between current backup ending to the time the next one is started.

BACKUP_FREQUENCY=3600

If defined as an empty string, the container will exit once a single backup run is performed.