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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