Docker Engine

http://docs.docker.jp/v1.12/_images/engine-components-flow.png

プログラムがデーモンとの通信に使い、何をするか指示する

image, container, network, volume,...

Imageの実行

code:bash

docker run docker/whalesay cowsay boo

Imageの構築

code:Dockerfile

FROM docker/whalesay:latest

RUN apt-get -y update && apt-get install -y fortunes

CMD /usr/games/fortune -a | cowsay

Imageを構築する

code:bash

docker build -t docker-whale .

Imageを実行する

code:bash

docker run docker-whale

CLI

Copy

code: bash

docker cp -r ${container_id}:${input} ${output}

Run with mounting volumes

code: (bash)

docker run -v /home/hoge/shared:/shared-it ubuntu /bin/bash

Show dangling images

code: (bash)

docker image ls -f "dangling=true"

Build

code: bash

ls Dockerfile

docker build -t ${USER}/${tag} .

Prune

code: (bash)

docker container prune

docker volume prune

docker image prune

docker network prune

docker system prune

docker system prune --volumes

docker system prune --all --volumes -f

Tag

code:bash

docker login --username=${USER} --email=${EMAIL}

docker pull ${USER}/${image}

docker tag ${USER}/${image} ${USER}/${image}:${tag} # or ${image_id} ${USER}/${image}:${tag}

docker push ${USER}/${image}:${tag}

search tags of the image

code: (bash)

Reference