How to clean the docker image warehouse

Best practices for cleaning Docker image repositories: Clean regularly to avoid redundant images accumulation; use tag classification mirrors to facilitate cleaning; consider using automation tools to simplify the cleaning process; be cautious when deleting images to ensure that the mirrors you are using are not deleted by mistake.

Docker image warehouse cleaning

Docker image repositories accumulate a lot of redundant or unused images over time, which can take up a lot of storage space and affect performance. Regular cleaning of mirrored warehouses is crucial to keep them efficient and optimized.

Cleaning method

There are several ways to clean the Docker image repository:

• Manually delete images: Use the docker rmi command to manually delete unnecessary images.
• Clean up commands using the Docker client: Commands such as docker image prune and docker image tag prune are provided in the Docker client to automatically clean up unused images and tags.
• Using third-party tools: There are a variety of third-party tools that can be used to automatically clean Docker image repositories, such as docker-cleanup , image-minimizer , and purge-docker .

Detailed steps

Manually delete the image:

1. Run the docker images command to list all images.
2. Determine the image to delete.
3. Use the docker rmi IMAGE_ID command to delete the image.

Use the Docker client to clean up the command:

1. Run docker image prune --force command to delete all unused images.
2. Run docker image tag prune command to delete the unrelated tags.

Use third-party tools:

1. Install third-party tools.
2. Run commands according to the tool's documentation to clean up the mirrored repository.

Best Practices

• Clean the mirror warehouse regularly to avoid accumulation of redundant mirrors.
• Use tags to classify images for easy cleaning.
• Consider using automation tools to simplify the cleaning process.
• When deleting images, be careful to make sure that the images you are using are not deleted.

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