How to update docker image
How to update docker image?
Whenever the remote image is updated, first pull it to the local
docker pull gogs/gogs
docker images. There will be two images with the same name, one with the tag latest and one with the tag none
Update script
#!/bin/shdocker rm -f gogs docker run --name=gogs -d -p 3022:22 -p 3000:3000 -v /home/docker/gogs:/data gogs/gogs
After the execution is completed, find the image ID with the tag none and delete it manually:
docker rmi [image id]
Related recommendations: docker tutorial
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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 get the Docker version, you can perform the following steps: Run the Docker command "docker --version" to view the client and server versions. For Mac or Windows, you can also view version information through the Version tab of the Docker Desktop GUI or the About Docker Desktop menu.

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.

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).

Docker container startup steps: Pull the container image: Run "docker pull [mirror name]". Create a container: Use "docker create [options] [mirror name] [commands and parameters]". Start the container: Execute "docker start [Container name or ID]". Check container status: Verify that the container is running with "docker ps".
