Docker

Difference between VM and Docker

VM: guest OS -> BINS&LIBS -> App
Docker: BINS*LIBS -> App

Uninstall the Docker Engine, CLI, containerd, and Docker Compose packages: sudo apt-get purge docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras

Images, containers, volumes, or custom configuration files on your host aren’t automatically removed. To delete all images, containers, and volumes: sudo rm -rf /var/lib/docker, sudo rm -rf /var/lib/containerd

docker image pull $image_name:$version

docker image tag $image_name:version $registryIP:port/username/image_name:version

docker image push $registryIP:port/username/image_name:version

docker image build -t $image_name .

docker image ls

docker image rm $image_name

docker image save $image_name > $filename

docker load < $filename

docker container create $image_name

docker container start $container_ID

docker container run $image_name # run is equal to create and start

docker container run -it $image_name /bin/bash

docker container ls, docker container ls --a

docker container pause $container_ID

docker container unpause $container_ID

docker container stop $container_ID

docker container kill $container_ID # the difference between stop and kill is that stop may do some clean-up before killing the container

docker container rm $container_ID

docker container prune # remove all the exit containers

docker container exec -it $containe_ID /bin/bash

docker container cp $container_ID:$file_path .

docker container commit $container_ID $image_name:$version

FROM python:3.7
WORKDIR ./docker_demo
ADD . .
RUN pip install -r requirements.txt
CMD ["python", "./src/main.py"]

Tutorial: [1]