Basic Operations
Stopped Docker Containers
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docker ps -a checks all containers, including the stopped ones
docker container prune removes all stopped containers
docker container rm <container-id>
# or
docker rm $(docker ps -a -f status=exited -q) # -f followed by status
Docker Compose
Amazon Elastic Container Registry (ECR) is a popular place to store Docker containers. First, make sure you have installed AWS CLI. Then, to pull your image:
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aws configure
aws ecr get-login-password --region <REAGION> | docker login --username AWS --password-stdin <ECR_IMAGE_PATH>
To Check what’s in the ECR registry:
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# get the registry's name
aws ecr describe-repositories --region <REGION>
aws ecr describe-images --repository-name <REGISTRY_NAME> --region <REGION>
Docker Image Building
TODO
Docker Image Removal
The most vanilla version is docker rmi <IMAGE_SHA_OR_IMAGE_WITH_TAG>
If you want to delete multiple images with the same name but with different tags IMAGENAME:tag1, IMAGENAME:tag2, then you can probably use docker rmi $(docker images 'IMAGENAME' -q).
However, if you want to delete a series of images that are built on top of each other (build stages), then they have a dependency chain. In that case, you can check for the dependencies using docker image --tree and do docker rmi <TOP_IMAGE> ... <BOTTOM_IMAGE>.
Environment Variables
DEBIAN_FRONTEND: this is an environment variable for Debian-based Systems (like Ubuntu) to control prompts in apt-get.ENV DEBIAN_FRONTEND=noninteractivewill assume default answers to all prompts
