andycmaj / docker-centos-percona

Docker image for Percona 5.6

docker-centos-percona

A Dockerfile that produces a Centos-based Docker image that will run the latest stable Percona.

This Dockerfile and the scripts are based on Ryan Seto's excellent docker-mariadb repo. Thanks, mate!

Image Creation

This example creates the image with the tag internavenue/centos-percona, but you can change this to use your own username.

$ docker build -t="internavenue/centos-percona" .

Alternately, you can run the following if you have GNU Make installed...

$ make

You can also specify a custom docker username like so:

$ make DOCKER_USER=internavenue

Container Creation / Running

The Percona server is configured to store data in /data inside the container. You can map the container's /data volume to a volume on the host so the data becomes independant of the running container.

This example uses /srv/docker/lon-dev-db1 to store the Percona data, but you can modify this to your needs.

When the container runs, it creates a superuser with a random password. You can set the username and password for the superuser by setting the container's environment variables. This lets you discover the username and password of the superuser from within a linked container or from the output of docker inspect percona1.

$ mkdir -p /srv/docker/lon-dev-db1
$ docker run -d -name="percona1" \
             -p 127.0.0.1:3306:3306 \
             -v /srv/docker/lon-dev-db1:/data \
             -e USER="super" \
             -e PASS="Whatz03v3r" \
             internavenue/centos-percona

Alternately, you can run the following if you have GNU Make installed...

$ make run

You can also specify a custom port to bind to on the host, a custom data directory, and the superuser username and password on the host like so:

$ sudo mkdir -p /srv/docker/lon-dev-db1
$ make run PORT=127.0.0.1:3306 \
           DATA_DIR=/srv/docker/lon-dev-db1 \
           USER=super \
           PASS=Whatz03v3r

Connecting to the Database

To connect to the Percona server, you will need to make sure you have a client. You can install the mariadb (an open-source drop-in replacement for MySQL) on your host machine by running the following (Fedora 20):

$ sudo yum install mariadb

As part of the startup for Percona Server, the container will set a password for the superuser. This password could be random, but until the tools have not been developed, it makes tough to link the container. To view the login in run docker logs <container_name> like so:

$ docker logs percona1
PERCONA_USER=super
PERCONA_PASS=Whatz03v3r
PERCONA_DATA_DIR=/data
Starting Percona MySQL...
140623 12:31:49 mysqld_safe Logging to '/data/mysql.log'.
140623 12:31:49 mysqld_safe Starting mysqld daemon with databases from /data

Then you can connect to the Percona server from the host with the following command:

$ mysql -u super --password=Whatz03v3r --protocol=tcp