# Postgresql backuper

A small program for creating postgresql backups at certain intervals.


## Configuration

| Env variable    | Description                                                                           | Default in docker |
| ---             | ---                                                                                   | ---               |
| BACKUPS_DIR     |                                                                                       | /backups          |
| PGDUMP_BINARY   |                                                                                       | pg_dumpall        |
| CUSTOM_ARGS     | Arguments passed to PGDUMP_BINARY. Don't use `-f`.                                    |                   |
| BACKUP_INTERVAL | Time between backups.                                                                 | 24h               |
| RETENTION       | Backups older than the RETENTION period will be deleted.                              | 168h              |

The duration must be in a format understood by the golang's `time` package.


## Docker-compose example

```yml
services:
  backuper:
    image: git.comfycamp.space/lumin/postgresql-backuper
    environment:
      CUSTOM_ARGS: "-U postgres -h postgresql --no-password"
    volumes:
      - postgresql-backups:/backups
```