Topic: devops
Pause CircleCI build until previous build finishes
If you ever configured CircleCI to do a deployment, you probably ran into the problem of two pushes triggering two deployments at the same time. You can prevent that.
Screen Sessions
How not to panic when someone tells you to use the screen command.
Docker for dummies
Get acquainted with basic Docker concepts while trying to run a simple Guestbook Rails app in a Docker container.