Script to backup all databases of a mariadb instance.

Usage

mariadb-backup:
    env:
      BACKUP_DB_HOST=mariadb
      BACKUP_DB_USER=root
      BACKUP_DB_PASSWORD=root
      BACKUP_NUM_KEEP=7
      BACKUP_FREQUENCY=1d
    volumes:
      - ./database-dump:/dump
      - /etc/localtime:/etc/localtime:ro
    depends_on:
      - mariadb

Volume

• /dump (mandatory): The directory where the dump archives will be created.
• /etc/localtime (optional): Timezone

Environment variables

Variable	Description	Default value
BACKUP_DB_HOST	The host of the DB to backup	mariadb
BACKUP_DB_USER	Username that can read all databases	root
BACKUP_DB_PASSWORD	You guess it	root
BACKUP_NUM_KEEP	how many backup archive can I keep?	7
BACKUP_FREQUENCY	How long to wait until each backup	1d
BACKUP_UID	User id of produced archives	1001
BACKUP_GID	Group id of produced archives	1001