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Docker

Dashboard

docker images
docker container ls -a
docker ps

Operations towards Dockerfile

docker build -t {my_name_tag} . //Must be done under same folder with Dockerfile

Operations towards images

docker run -d --privileged=true {image_id}
docker run -it {image_id} /bin/bash

Operations towards containers

docker logs {container_id} # dump the logs but not following
docker logs -f {container_id} # dump and follow logs
docker stop {container_id}
docker kill {container_id}
docker exec -it {container_id} /bin/bash # login to a daemon container

Pruning

docker image prune
docker container prune
docker system prune //Includes aboves

Dockerfile keywords

CMD: a command that is run when the container first started. Can be override if container is started with command line
ENTRYPOINT: now i am using it to run entrypoint.sh. Note that if ENTRYPOINT is a script that is finite, and you set the container to be a restarting daemon, it will restart again and again
USER: state what is the user when we enter the container. Note the rest of the Dockerfile is still run as root's perspective and has nothing to do with what is in USER

Compose yml

CMD counter part: command
ENTRYPOINT counter part: entrypoint