How to prevent docker from starting at boot
How to disable docker from starting up
The command to disable docker from starting up is: systemctl disable docker
More other commands are as follows:
显示服务状态:systemctl status docker.service 列出服务层级和依赖关系:systemctl list-dependencies docker.service 启动服务:systemctl start docker.service 关闭服务:systemctl stop docker.service 重启服务:systemctl restart docker.service 设置服务自启动:systemctl enable docker.service 禁止服务自启动:systemctl disable docker.service 查看服务是否自启动:systemctl is-enabled docker.service 列出系统所有服务的启动情况:systemctl list-units --type=service 列出所有自启动服务:systemctl list-unit-files|grep enabled
Old version commands: (chkconfig, service)
chkconfig --level 3 docker off
显示服务状态:service docker status 列出服务层级和依赖关系:systemctl list-dependencies docker.service 启动服务:service docker start 关闭服务:service docker stop 重启服务:service docker restart 设置服务自启动:chkconfig --level 3 docker on 禁止服务自启动:chkconfig --level 3 docker off 查看服务是否自启动:chkconfig --list docker 列出系统所有服务的启动情况:chkconfig --list
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The steps to update a Docker image are as follows: Pull the latest image tag New image Delete the old image for a specific tag (optional) Restart the container (if needed)

Steps to create a Docker image: Write a Dockerfile that contains the build instructions. Build the image in the terminal, using the docker build command. Tag the image and assign names and tags using the docker tag command.

How to use Docker Desktop? Docker Desktop is a tool for running Docker containers on local machines. The steps to use include: 1. Install Docker Desktop; 2. Start Docker Desktop; 3. Create Docker image (using Dockerfile); 4. Build Docker image (using docker build); 5. Run Docker container (using docker run).

To save the image in Docker, you can use the docker commit command to create a new image, containing the current state of the specified container, syntax: docker commit [Options] Container ID Image name. To save the image to the repository, you can use the docker push command, syntax: docker push image name [: tag]. To import saved images, you can use the docker pull command, syntax: docker pull image name [: tag].

Methods for copying files to external hosts in Docker: Use the docker cp command: Execute docker cp [Options] <Container Path> <Host Path>. Using data volumes: Create a directory on the host, and use the -v parameter to mount the directory into the container when creating the container to achieve bidirectional file synchronization.

Four ways to exit Docker container: Use Ctrl D in the container terminal Enter exit command in the container terminal Use docker stop <container_name> Command Use docker kill <container_name> command in the host terminal (force exit)

Troubleshooting steps for failed Docker image build: Check Dockerfile syntax and dependency version. Check if the build context contains the required source code and dependencies. View the build log for error details. Use the --target option to build a hierarchical phase to identify failure points. Make sure to use the latest version of Docker engine. Build the image with --t [image-name]:debug mode to debug the problem. Check disk space and make sure it is sufficient. Disable SELinux to prevent interference with the build process. Ask community platforms for help, provide Dockerfiles and build log descriptions for more specific suggestions.

You can query the Docker container name by following the steps: List all containers (docker ps). Filter the container list (using the grep command). Gets the container name (located in the "NAMES" column).
