This image runs mysqldump to backup data using cronjob to folder /backup. Backups are named with date and time, the latest backup is linked to /backup/latest.sql.
Uses Alpine Linux for a small (36 MB) image.
docker run -d \
--env MYSQL_HOST=mariadb.host \
--env MYSQL_PORT=3306 \
--env MYSQL_USER=admin \
--env MYSQL_PASS=password \
--volume host.folder:/backup
jswetzen/mysql-backup
Moreover, if you link jswetzen/mysql-backup to a mariadb container with an alias named mariadb, this image has defaults that will connect to mariadb on port 3306 with user root and no password.
docker run -d -e MYSQL_ALLOW_EMPTY_PASSWORD=true --name mariadb mariadb
docker run -d --link mariadb:mariadb -v host.folder:/backup jswetzen/mysql-backup
MYSQL_HOST the host/ip of your mysql database
MYSQL_PORT the port number of your mysql database
MYSQL_USER the username of your mysql database
MYSQL_PASS the password of your mysql database
MYSQL_DB the database name to dump. Default: `--all-databases`
EXTRA_OPTS the extra options to pass to mysqldump command
CRON_TIME the interval of cron job to run mysqldump. `0 0 * * *` by default, which is every day at 00:00
MAX_BACKUPS the number of backups to keep. When reaching the limit, the old backup will be discarded. No limit by default
INIT_BACKUP if set, create a backup when the container starts
INIT_RESTORE_LATEST if set, restores latest backup
NO_CRON if set, do not start cron. Must be used with INIT_BACKUP to run a single backup and then exit
See the list of backups, you can run:
docker exec mysql-backup ls /backup
To restore database from a certain backup, simply run:
docker exec mysql-backup /restore.sh /backup/2015.08.06.171901.sql
Add a GitHub issue.