I wanted to report a problem and the solution to it.
I installed Docker and Docker-Compose, got the images from Xibo and tried docker-compose up on CentOS7.
The mysql:5.6 container, the database kept restarting. After setenforce 0 to temporarily disable SELinux the problem was solved and the database reachable.
I ran into the same issue when I was setting up Docker on CentOS 7. The MySQL container kept restarting, and I found that disabling SELinux with setenforce 0 temporarily fixed it. It made the database accessible again, but I knew that wasn’t a permanent solution. I ended up adjusting the SELinux policies instead of leaving it disabled, which worked much better in the long run. If you’re going the permanent route, you might want to tweak the SELinux settings for Docker specifically, rather than just turning it off.