MySQL and Wordpress Dockers do not keep running

  • Posted on November 15, 2014
  • fvhemertAsked by fvhemert

Dear all, I want to get Wordpress running using Docker on CoreOS. I followed all the instructions for MySQL, I gave the following command:

docker run --name wordpress-mysql -e MYSQL_ROOT_PASSWORD=rtpassword -e MYSQL_USER=fvhemert -e MYSQL_PASSWORD=usrpassword -e MYSQL_DATABASE=wordpress -d mysql

Stangely, the container run for a short while, typing “docker ps” I see it but after some second I “docker ps” again and it is gone, I still see it using “docker ps -a”.

Subsequently I give the command:

docker run --name fvhemert-wordpress --link=wordpress-mysql:mysql -e WORDPRESS_DB_USER=fvhemert -e WORDPRESS_DB_PASSWORD=usrpassword -e WORDPRESS_DB_NAME=wordpress -p 8080:80 -d wordpress

There a no further errors but “docker ps” does not show any running containers, they both are present when typing “docker ps -a” and have that status “excited”. Why?

I don’t want them exited, I though that the “-d” argument would make them runs as daemons and keep them active? There is not active page on the ip.adres:8080 or ip.adres:80.

Any suggestions? What am I doing wrong?

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First, check your logs by typing docker logs my-container-name and see what’s going on.

I had a similar problem (MySQL on Ubuntu14.04+Docker), and it turned out it was because I was trying to get MySQL up and running on an instance with only 512MB RAM. Since DO’s images don’t come with a swap file enabled by default, MySQL was filling up the RAM and then – having nowhere to page memory when it fills up – failing.

The two easiest ways to fix this are:

  1. Spin up an instance with at least 1GB of RAM.
  2. Add a swap file to your instance.

Hope this helps.


Your original mysql docker command is as follows:

docker run --name wordpress-mysql -e MYSQL_ROOT_PASSWORD=rtpassword -e MYSQL_USER=fvhemert -e MYSQL_PASSWORD=usrpassword -e MYSQL_DATABASE=wordpress -d mysql

“Looking” at this i think you are missing the -p command that specifies a port for mysql operations aka tcp:3306.

There are two ways you can sort this out.

  1. use --expose 3306 when running mysql container.

  2. use -p :3306:3306 when running mysql container. (just make sure you don’t allow wan access on 3306).

Hopefully, this should solve your problem.

Best Regards Hareem Haque

If you have $5 512M Droplet, just enable swap. I stuck with this for a few days until I found this solution.