Docker学习

Docker学习

https://vuepress.mirror.docker-practice.com/image/build/

介绍

Docker是镜像管理工具，通过run命令生成各个Container(容器)

镜像管理

查看镜像列表

docker image ls

搜索镜像

docker search 名称

拉取镜像

docker pull [选项] [Docker Registry 地址[:端口号]/]仓库名[:标签]

eg:

$ docker pull ubuntu:18.04
18.04: Pulling from library/ubuntu
92dc2a97ff99: Pull complete
be13a9d27eb8: Pull complete
c8299583700a: Pull complete
Digest: sha256:4bc3ae6596938cb0d9e5ac51a1152ec9dcac2a1c50829c74abd9c4361e321b26
Status: Downloaded newer image for ubuntu:18.04
docker.io/library/ubuntu:18.04

删除镜像

docker image rm [选项] <镜像1> [<镜像2> ...]

名称通常使用长ID，ID前三位，仓库名+tag进行删除

eg

admin@AliServer:~/code$ docker image ls
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
ubuntu        latest    d13c942271d6   4 weeks ago    72.8MB
hello-world   latest    feb5d9fea6a5   4 months ago   13.3kB

docker image rm ubuntu:latest
docker image rm d13
docker image rm d13c942271d6
docker image rm $(docker image ls -q ubuntu) #删除所有ubuntu的镜像

容器管理

查看所有容器

docker ps -a
eg

admin@AliServer:~/code$ docker ps -a
CONTAINER ID   IMAGE           COMMAND                  CREATED             STATUS                           PORTS     NAMES
9c0615f6b43e   ubuntu:latest   "/bin/sh -c 'while t…"   59 minutes ago      Up 59 minutes                              dazzling_mcclintock
4c6fcb36551c   ubuntu:latest   "/bin/sh -c 'while t…"   About an hour ago   Exited (130) About an hour ago             funny_herschel

启动容器

docker run -it --rm ubuntu:18.04 bash#以bash形式进入镜像，并在停止后删除容器

docker container start [ContainterID]

docker run ubuntu:18.04 /bin/sh -c "while true; do echo hello world; sleep 1; done"
`docker run -d ubuntu:18.04 /bin/sh -c "while true; do echo hello world; sleep 1; done"

停止容器

docker container stop [ContainterID]

查看容器日志

docker container logs [ContainterID]

进入容器

docker attach [ContainterID]