Dockerコマンドによる状態遷移
コマンド使用例
- docker pull [オプション] イメージ名[:タグ名]
$ sudo docker pull ubuntu
$ sudo docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest 16508e5c265d 10 days ago 84.1MB
- docker build -t [生成するイメージ名]:[タグ名] [Dockerfileの場所]
$ sudo docker build -t example ./
$ sudo docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
example latest 62f7ae565c29 About a minute ago 221MB
ubuntu latest 16508e5c265d 10 days ago 84.1MB
#Dockerfile
FROM ubuntu:18.04
RUN apt-get update
RUN apt-get install -y apache2
EXPOSE 80
CMD ["apachectl", "-D", "FOREGROUND"]
- docker run [オプション] イメージ名[:タグ名] [引数]
$ sudo docker run -d -p 8000:80 example
$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8ea65a33328e example "apachectl -D FOREGR…" 8 minutes ago Up 8 minutes 0.0.0.0:8000->80/tcp competent_pare
$ curl http://localhost:8000
・・・・apacheの画面・・・・
- docker stop [オプション] コンテナ識別子 [コンテナ識別子]
$ sudo docker stop 8ea65a33328e
8ea65a33328e
$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
$ sudo docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8ea65a33328e example "apachectl -D FOREGR…" 40 minutes ago Exited (137) 21 seconds ago frosty_cray
- docker start [オプション] コンテナ識別子 [コンテナ識別子]
$ sudo docker start 8ea65a33328e
8ea65a33328e
$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8ea65a33328e example "apachectl -D FOREGR…" 11 minutes ago Up 29 seconds 0.0.0.0:8000->80/tcp frosty_cray
- docker rm [オプション] コンテナ識別子 [コンテナ識別子]
$ sudo docker rm 8ea65a33328e
8ea65a33328e
$ sudo docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
- docker push イメージ名[:タグ名]
$ sudo docker tag 62f7ae565c29 7vj1/example:latest
$ sudo docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
7vj1/example latest 62f7ae565c29 2 hours ago 221MB
example latest 62f7ae565c29 2 hours ago 221MB
ubuntu latest 16508e5c265d 10 days ago 84.1MB
$ sudo docker push 7vj1/example:latest
- docker rmi [オプション] イメージ名 [イメージ名]
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
7vj1/example latest 62f7ae565c29 2 hours ago 221MB
example latest 62f7ae565c29 2 hours ago 221MB
ubuntu latest 16508e5c265d 10 days ago 84.1MB
$ sudo docker rmi example
Untagged: example:latest
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
7vj1/example latest 62f7ae565c29 2 hours ago 221MB
ubuntu latest 16508e5c265d 10 days ago 84.1MB
- docker commit [オプション] コンテナ識別子 [イメージ名[:タグ名]]
$ sudo docker commit d1711394b08b example-commit
sha256:122560d92b9be311629a773e182a66ace818eafb76993866642470540d6ade4b
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
example-commit latest 122560d92b9b 6 seconds ago 221MB
7vj1/example latest 62f7ae565c29 3 hours ago 221MB
ubuntu latest 16508e5c265d 10 days ago 84.1MB
- docker exec [オプション] コンテナ識別子 実行するコマンド [引数]
$ sudo docker exec -it d1711394b08b /bin/bash
root@d1711394b08b:/#
参考
http://docs.docker.jp/engine/reference/commandline/index.html
https://qiita.com/nimusukeroku/items/72bc48a8569a954c7aa2
https://qiita.com/TakahiRoyte/items/39dcf18da0ef2d1fe8b0
