I have sorted out the Docker commands that Linux operation and maintenance engineers must master!

Docker is a lightweight containerization solution that helps developers build, publish, and run applications more easily. When using Docker, it is necessary to be familiar with some common commands. This article will introduce some commonly used Docker commands, and give examples and explanations.

Docker command

Container Management Commands

1. docker run

docker runcommand to create and start a new container. Here are some common options:

• -d: Run the container in the background.
• --name: Specify a name for the container.
• -p: Map container ports to host ports.
• -v: Mount the host directory into the container.

Example:

docker run -d --name mycontainer -p 8080:80 -v /host/data:/container/data nginx

2. docker start/stop/restart

These commands are used to start, stop and restart containers.

docker start mycontainer    # 启动容器
docker stop mycontainer     # 停止容器
docker restart mycontainer  # 重启容器

3. docker exec

docker execcommand is used to execute commands in a running container.

docker exec -it mycontainer bash  # 进入容器内部的bash shell
docker exec mycontainer ls        # 在容器内部执行ls命令

4. docker rm

docker rmcommand is used to delete one or more containers.

docker rm mycontainer      # 删除容器
docker rm container1 container2  # 同时删除多个容器

5. docker ps

docker pscommand to list running containers.

docker ps   # 列出正在运行的容器
docker ps -a  # 列出所有容器，包括停止的容器

Image Management Commands

1. docker pull

docker pullThe command is used to pull the image from the remote warehouse to the local.

docker pull nginx    # 拉取最新的nginx镜像
docker pull nginx:1.19.10    # 拉取指定版本的nginx镜像

2. docker build

docker buildCommands are used to build images.

docker build -t myimage:1.0 .   # 在当前目录下的Dockerfile文件中构建名为myimage的镜像，标签为1.0

3. docker push

docker pushThe command is used to push the local image to the remote repository.

docker push myimage:1.0   # 推送名为myimage，标签为1.0的镜像到远程仓库

4. docker images

docker imagescommand to list local mirrors.

docker images    # 列出本地的所有镜像

network management commands

1. docker network create

docker network createcommand is used to create a network.

docker network create mynetwork   # 创建名为mynetwork的网络

2. docker network connect/disconnect

These commands are used to connect and disconnect containers to and from the network.

docker network connect mynetwork mycontainer   # 将容器连接到mynetwork网络
docker network disconnect mynetwork mycontainer  # 将容器从mynetwork网络断开

3. docker network ls

docker network lscommand to list existing networks.

docker network ls   # 列出所有网络

Of course, I can help you write an article about common commands of Docker. The following is a sample article (Markdown table format) about common commands of Docker:

organized into tables

Container Management Commands

Here are some commonly used container management commands and their usage:

Order	usage	describe
docker run	docker run [OPTIONS] IMAGE [COMMAND] [ARG...]	Create and start a new container
docker stop	docker stop [OPTIONS] CONTAINER [CONTAINER...]	stop one or more containers
docker start	docker start [OPTIONS] CONTAINER [CONTAINER...]	Start one or more stopped containers
docker restart	docker restart [OPTIONS] CONTAINER [CONTAINER...]	restart one or more containers
docker rm	docker rm [OPTIONS] CONTAINER [CONTAINER...]	delete one or more containers
docker ps	docker ps [OPTIONS]	list running containers
docker inspect	docker inspect [OPTIONS] CONTAINER [CONTAINER...]	Get details about a container

Using the above commands, you can create, stop, start, restart, delete containers, and view the status and details of the containers.

Image Management Commands

The following are some commonly used image management commands and their usage:

Order	usage	describe
docker pull	`docker pull [OPTIONS] NAME[:TAG	@DIGEST]`
docker push	docker push [OPTIONS] NAME[:TAG]	Push the local image to the remote warehouse
docker build	`docker build [OPTIONS] PATH	URL
docker images	docker images [OPTIONS] [REPOSITORY[:TAG]]	List local mirrors
docker rmi	docker rmi [OPTIONS] IMAGE [IMAGE...]	delete one or more images

Using the above commands, you can pull, push, build and delete mirrors, and view the list of local mirrors.

network management commands

Here are some commonly used network management commands and their usage:

Order	usage	describe
docker network create	docker network create [OPTIONS] NETWORK	create a new network
docker network connect	docker network connect [OPTIONS] NETWORK CONTAINER	Connect a container to a network
docker network disconnect	docker network disconnect [OPTIONS] NETWORK CONTAINER	Disconnect a container from the network
docker network ls	docker network ls [OPTIONS]	list current networks
docker network inspect	docker network inspect [OPTIONS] NETWORK [NETWORK...]	get network details

Using the above commands, you can create, connect, disconnect, list and view networks and their details.

Data Volume Management Commands

The following are some commonly used data volume management commands and their usage:

Order	usage	describe
docker volume create	docker volume create [OPTIONS] [VOLUME]	Create a new data volume
docker volume ls	docker volume ls [OPTIONS]	List local data volumes
docker volume inspect	docker volume inspect [OPTIONS] VOLUME [VOLUME...]	Get the details of the data volume
docker volume rm	docker volume rm [OPTIONS] VOLUME [VOLUME...]	Delete one or more data volumes

Using the above commands, you can create, list, view and delete data volumes.

container log command

Here are some commonly used container logging commands and their usage:

Order	usage	describe
docker logs	docker logs [OPTIONS] CONTAINER	View container logs
docker logs --follow	docker logs --follow [OPTIONS] CONTAINER	Track container log output in real time
docker logs --tail	docker logs --tail [OPTIONS] CONTAINER	View the log for the last few lines of the container
docker logs --since	docker logs --since [OPTIONS] CONTAINER	View the logs of the container from the specified time

in conclusion

This article introduces some commonly used Docker commands, covering container management, image management, and network management. By being familiar with these commands, you can more conveniently use Docker to develop, release, and deploy applications. If you need a more in-depth understanding of Docker commands, please refer to the official documentation.