Docker scrarch notes - rough collection of details for a doc later on

docker_notes.md

Docker: Scratch notes

Concepts

• "When you commit a container to an image, it will remember the last run parameters you used by default"

• Dockerfile: "Each RUN instruction produces a new layer."

Commands

• Last docker container: sudo docker ps -lq
• List of docker container ids: sudo docker ps -qa
• sudo docker rm $(sudo docker ps -a | grep -vE 'deoren|ID' | awk '{print $1}')

Last docker container: 

  sudo docker ps -lq

List of docker container ids: 

  sudo docker ps -qa

Prune all containers (but not images):

  sudo docker ps -aq | xargs sudo docker rm

What changed between the image and the last container that was run?

  sudo docker diff $(sudo docker -lq)

Saving changes made to a container as a new image (layer):

  sudo docker commit $(sudo docker ps -lq) DOCKER_PROFILE/DOCKER_REPO:TAG

Remove image:

• sudo docker rmi IMAGE
• sudo docker image rm IMAGE

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