Docker命令整理

启动docker

[root@db02 client]# systemctl start docker
[root@db02 client]# systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: active (running) since 二 2017-11-07 10:40:16 CST; 1s ago
Docs: http://docs.docker.com
Main PID: 11272 (dockerd-current)
CGroup: /system.slice/docker.service
├─11272 /usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --def...
└─11283 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.soc...

获取镜像

# docker pull NAME[:TAG]
[root@localhost ~]# docker pull nano/node.js:0.10

查看本地所有镜像

# docker images
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
das 0.2 e0823ecf5b59 2 hours ago 668 MB
daocloud.io/node 5 12b4a63115bc 5 months ago 648 MB

构建一份新的镜像， build时会读取 Dockerfile配置

# docker build -t <newimagename> <目录>

[root@localhost ~]# docker build -t das .

删除一个镜像

# docker rmi IMAGE [IMAGE...]
[root@localhost ~]# docker rmi e0823ecf5b59

删除所有未打 dangling 标签的镜像

[root@localhost ~]# docker rmi $(docker images -q -f dangling=true)

删除所有镜像

[root@localhost ~]# docker rmi $(docker images -q)

创建一个新的容器但不启动它, 用法同 docker run

# docker create [OPTIONS] IMAGE [COMMAND] [ARG...]
[root@localhost ~]# docker create das

# 或者：
[root@localhost ~]# docker create e0823ecf5b59

启动Container容器

# docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
[root@localhost ~]# docker run -ti das
# 或者：
[root@localhost ~]# docker run -ti e0823ecf5b59

启动Container容器并映射到外网

# docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
[root@localhost ~]# docker run -ti -p 8000:8000 das
# 或者：
[root@localhost ~]# docker run -ti -p 8000:8000 e0823ecf5b59

查看容器列表

docker ps -a

[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c50a9c160f93 e0823ecf5b59 "npm start" 45 minutes ago Up 45 minutes 0.0.0.0:8000->8000/tcp kickass_bohr>>

查看容器的PID

[root@localhost ~]# docker inspect --format {{.State.Pid}} c50a9c160f93
27432
[root@localhost ~]#

根据容器的PID进入容器

[root@localhost ~]# nsenter -t 27432 --mount --uts --ipc --net --pid

停止一个运行中的容器

# docker stop [OPTIONS] CONTAINER [CONTAINER...]
[root@localhost ~]# docker stop c50a9c160f93

启动一个或多个已经被停止的容器

# docker start [OPTIONS] CONTAINER [CONTAINER...]
[root@localhost ~]# docker start c50a9c160f93

重启容器

# docker restart [OPTIONS] CONTAINER [CONTAINER...]
[root@localhost ~]# docker restart c50a9c160f93

杀死一个正在运行的容器

# docker kill [OPTIONS] CONTAINER [CONTAINER...]
[root@localhost ~]# docker kill c50a9c160f93

杀死所有正在运行的容器

[root@localhost ~]# docker kill $(docker ps -a -q)

删除所有已经停止的容器

[root@localhost ~]# docker rm $(docker ps -a -q)

发布镜像

# docker tag 镜像名:镜像版本 DockerHub用户名/镜像名:镜像版本号
[root@localhost ~]# docker tag das:0.1 maosiyu/das:0.1
# docker push DockerHub用户名/镜像名:镜像版本号
[root@localhost maosiyu]# docker push maosiyu/das:0.1

导出容器

[root@localhost maosiyu]# docker export c50a9c160f93
>
das0.3.tar

导入容器

[root@localhost mao_siyu]# cat das0.3.tar | docker import - das:0.3

保存镜像

[root@localhost maosiyu]# docker save das:0.3
>
das0.3.tar

载入镜像

[root@localhost mao_siyu]# docker load -i das0.3.tar

实时查看容器日志

[root@localhost mao_siyu]# docker logs -f -t c50a9c160f93