Intermediate Practice Checklist¶

Level: Intermediate

Basic: Commands¶

• Get familiar with top, stats, logs, ps.
• Get familiar with docker run options, e.g. --rm, -d, --name, --add-host, --init.
  • Docker run reference | Docker Documentation
• Save docker images into tar, and gzip.

Reading: Docker and Zombie Process¶

Articles¶

• Docker and the PID 1 zombie reaping problem (phusion.nl)
• Run multiple services in a container | Docker Documentation
• Tini - GitHub

Practice¶

• Run a container with --init.
• Build an image and use tini as the entry point.

Exercise: Run a Container to Completion¶

Instead of running a long-lasting service, a container can also be run to completion to finish a task.

• Use a python image to run a container to completion with exit code 0.
  • It can be as simple as echo hello
  • You can try to run complicated commands.
• Build an image to run a container to completion by default.
  • Use the Jupyter image built in the previous checklist.
  • Mount a script into the container and start the container to run the script to completion.
    • Commands: run, -v/--volume.
  • Build an image with the script shipped, and run the container to completion.