Docker-basic operation commands

One, docker mirror operation

1. Query docker version

docker version && docker info

2. Search mirror

docker search nginx
dockersearch centos：7

PS: Linux distribution: alpine centos redhat Debian (apt package management, centos is rpm) production environment may be used

3. Download the mirror

docker pull镜像名称,例如:docker pull nginx

4. View the mirror list

docker images——查看当前docker下的下载镜像信息

5. Obtain mirror information

docker inspect 镜像ID

6. Add a mirror tag

docker tag nginx:latest nginx:Inmp

7. Delete

docker rmi 镜像名称
docker rmi 镜像标签

8. Mirror export

docker save -o文件名 镜像名
示例:
docker save -o nginx nginx:latest

9. Mirror import

docker load < nginx
使用场景：有的生产环境，企业不直接使用docker私有仓库，而是存放在一个ftp服务器中，按需上传下载

Two, container operation

1. Query the container

docker ps -a

2. Create a container

docker create -it nginx:latest /bin/bash

-i让容器的标准输入保持打开
t分配一个伪终端

3. Start the container

docker start 容器id

4. Start the container (one-time execution)

docker run centos:7 /usr/bin/bash -c ls /

5. Stop the container

docker stop 容器ID

6. Continue to run in the background

docker run -d centos:7 /bin/bash -c "while true;do echo hello;done"

7. Enter the container

1.使用run
   docker run -it nginx:latest /bin/bash
2.exec(容器必须为开启状态)
   docker exec -it 容器ID /bin/bash

8. Container export

docker export容器ID > 文件名
示例:
docker export容器ID > nginx_a

9. Container import (image generation)

docker import nginx_a nginx:latest
cat nginx_a | docker import --nginx:latest

10. Delete the container

docker rm 容器ID

11. Batch delete containers

docker ps -a | awk '{print "docker rm "$1"}' | bash

12. Batch delete containers in "exit" status

for i in `docker ps -a / grep -i exit | awk '{print $1}'`; do docker rm -f $i;done