jmcarbo / mysql-backup

Docker image that regularly backs up a MySQL instance into a volume

mysql-backup

This image runs mysqldump to backup data using cronjob to folder /backup

Usage:

docker run -d \
    --env MYSQL_HOST=mysql.host \
    --env MYSQL_PORT=27017 \
    --env MYSQL_USER=admin \
    --env MYSQL_PASS=password \
    --volume host.folder:/backup
    tutum/mysql-backup

Moreover, if you link tutum/mysql-backup to a mysql container(e.g. tutum/mysql) with an alias named mysql, this image will try to auto load the host, port, user, pass if possible.

docker run -d -p 27017:27017 -p 28017:28017 -e MYSQL_PASS="mypass" --name mysql tutum/mysql
docker run -d --link mysql:mysql -v host.folder:/backup tutum/mysql-backup

Parameters

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

INIT_RESTORE_URL restore from minio url ex: myminio/bla/file.sql 
MINIO_HOST name of minio host ex: myminio
MINIO_HOST_URL ex: https://myminio.my.io
MINIO_ACCESS_KEY minio access key
MINIO_SECRET_KEY minio secret key

Restore from a backup

See the list of backups, you can run:

docker exec tutum-backup ls /backup

To restore database from a certain backup, simply run:

docker exec tutum-backup /restore.sh /backup/2015.08.06.171901