Docker 实战（三）：Docker 常用命令

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images 查看镜像

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$ docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
tomcat              latest              c6cfe59eb987        6 days ago          357 MB
batizhao/ubuntu     latest              a15b93298276        9 days ago          297.2 MB
ubuntu              16.04               f753707788c5        5 weeks ago         127.2 MB
ubuntu              latest              f753707788c5        5 weeks ago         127.2 MB
swarm               latest              942fd5fd357e        3 months ago        19.47 MB

ps 查看容器

运行中的

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$ docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                     NAMES
e6eef58b3544        tomcat              "catalina.sh run"   16 minutes ago      Up 14 minutes       0.0.0.0:32770->8080/tcp   evil_wozniak

所有的

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$ docker ps -a

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                        PORTS                     NAMES
e6eef58b3544        tomcat              "catalina.sh run"        17 minutes ago      Up 15 minutes                 0.0.0.0:32770->8080/tcp   evil_wozniak
d4faf2e9badf        tomcat              "catalina.sh run"        35 minutes ago      Exited (130) 26 minutes ago                             ecstatic_bohr
47d97451e8a1        tomcat              "catalina.sh run"        36 minutes ago      Exited (130) 35 minutes ago                             berserk_mclean
54c65a764bf0        batizhao/ubuntu     "/usr/bin/supervisord"   7 days ago          Exited (0) 7 days ago                                   jolly_allen
9246f78c4b8f        batizhao/ubuntu     "/usr/bin/supervisord"   7 days ago          Exited (0) 7 days ago                                   stupefied_gates
d49845097aa0        batizhao/ubuntu     "/usr/bin/supervisord"   7 days ago          Exited (0) 7 days ago                                   sad_stallman
311ba7bb9ffd        swarm               "/swarm --help"          7 days ago          Exited (0) 7 days ago                                   naughty_bhaskara

run 运行容器

启动 MySQL Docker 容器

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$ docker run -itd -e MYSQL_ROOT_PASSWORD=passw0rd -e MYSQL_ROOT_HOST=% -e MYSQL_DATABASE=iwamp2 -p 3306:3306 --name=mysql batizhao/mysql:latest

Tomcat Docker 容器连接宿主机 MySQL

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$ docker run -itd -p 9000:8080 --name iwamp -v /Users/batizhao/Downloads/web:/opt/tomcat/webapps --add-host='iwamp2.dev:172.17.0.1' batizhao/tomcat:8-jre8

Tomcat Docker 容器连接 MySQL Docker 容器

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$ docker run -it -p 9000:8080 --name iwamp2 -v /Users/batizhao/Downloads/web:/opt/tomcat/webapps --link mysql:iwamp2.dev batizhao/tomcat:8-jre8

Tomcat Docker 容器连接物理 Oracle 数据库

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$ docker run -itd -p 9000:8080 --name iwamp -v /Users/batizhao/Downloads/web:/opt/tomcat/webapps --add-host='iwamp.dev:172.31.21.216' batizhao/tomcat:8-jre8

rm 删除容器

删除单个容器

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$ docker rm 47d97451e8a1

47d97451e8a1

删除所有停止运行的容器

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$ docker rm $(docker ps -a -q)

rmi 删除镜像

删除 REPOSITORY 为 swarm，TAG 为 latest 的镜像

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$ docker rmi swarm

Error response from daemon: conflict: unable to remove repository reference "swarm" (must force) - container 311ba7bb9ffd is using its referenced image 942fd5fd357e

如果提示以上错误，可以先删除所关联容器，或者直接使用 -f 参数

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$ docker rmi -f swarm

Untagged: swarm:latest
Untagged: swarm@sha256:c9e1b4d4e399946c0542accf30f9a73500d6b0b075e152ed1c792214d3509d70
Deleted: sha256:942fd5fd357e2fe2fcecbaf3dd77c313f22ce18a84a5a4d288c0df407a61e623

批量删除 tag 为 none 的镜像

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$ docker images|grep none|awk '{print $3}'|xargs docker rmi -f

Deleted: sha256:d43fcd0c191c0fa7ae1df73ea59ed374a5e9b5c25788ddc4183800257cc8a38f
Deleted: sha256:59e448d53f303721ca12a40513c3dbc8651cc046311186825b9d7eec0805baac

port 查看端口映射

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$ docker port e6eef58b3544 8080
0.0.0.0:32770

exec 进入运行中的容器

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$ docker exec -it e6eef58b3544 bash

root@e6eef58b3544:/usr/local/tomcat#