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This article will explain in detail what are the basic operating commands for getting started with Docker. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

1. Related to docker services

Docker service management uses the systemctl command, and all services under Linux can be managed in the following ways.

Check whether the docker service starts systemctl status docker

Start the docker service systemctl start docker

Stop the docker service systemctl stop docker

Restart the docker service systemctl restart docker

Set docker service boot self-startup systemctl enable docker

View docker version docker-v

View docker system information docker info

II. Docker image management

View a list of docker images

Docker imagesdocker image ls

Save the mirror as a file

Docker save-o file name image name docker save-o centos8.tar centos:latest

Import saved image file

Docker load-I file name docker load-I centos8.tar

Pull or update a specified image from the image repository

Docker pull [OPTIONS] NAME [: TAG | @ DIGEST] docker pull centos # pull centos image

Delete images and delete multiple images at the same time. When deleting multiple images, the image name or id is separated by spaces.

Docker rmi [OPTIONS] IMAGE [IMAGE...]

Mark the local image and put it in a repository

Docker tag SOURCE_IMAGE [: TAG] TARGET_IMAGE [: TAG] docker tag hello-world:latest ay-a/hello:0.1

Push the image to the image repository

Docker push [OPTIONS] NAME [: TAG] docker push myimages:0.1

Docker build uses Dockerfile to create images (Dockerfile is not detailed here)

# the format of the command is as follows, and there are many options. You can view docker build [OPTIONS] PATH via docker build-- help | URL |-# create an image using the Dockerfile of the current directory, labeled testimages/test:v1docker build-t testimages/test:v1. III. Docker container life cycle management

Docker create creates a container but does not start it

# Command format docker create [OPTIONS] IMAGE [COMMAND] [ARG...] # create a container docker create named test using hello-world:latest-- name test hello-world:latest

Docker run creates and runs a new container

# Command format docker run [OPTIONS] IMAGE [COMMAND] [ARG...] # create a container named test using hello-world:latest and run docker run-- name test hello-world:latest

Docker start starts one or more containers that have stopped

# start the container docker start cea968a92c01 whose id is cea968a92c01

Docker stop stops a running container

# stop the container docker stop cea968a92c01 whose id is cea968a92c01

Docker restart restart the container

# restart the container docker restart cea968a92c01 whose id is cea968a92c01

Docker kill kills a running container

# Kill the container docker kill cea968a92c01 whose id is cea968a92c01

Docker rm deletes one or more containers, separated by spaces

# Delete the container docker rm cea968a92c01 whose id is cea968a92c01

Docker pause/unpause pauses / resumes all processes in the container

# pause all processes in a container with id as cea968a92c01 docker pause cea968a92c01# restore all processes docker unpause cea968a92c01 in containers with id as cea968a92c01

Docker exec executes commands in the container

# Command format docker exec [OPTIONS] CONTAINER COMMAND [ARG...] # run / bin/bash program docker exec-it 66c6f21aa2d1 / bin/bash in a container where id is 66c6f21aa2d1 4. Container operation

View a list of containers

Docker ps-a

Before you want to understand docker deeply, you must understand the concepts of container and virtual machine.

On the introduction to Docker what the basic operation commands are shared here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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