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docker-registry-tool

docker-registry-tool is a command line tool for listing, pruning and manually deleting Docker Registry tags, and performing garbage collection.

The Docker Registry is a convenient containerised open-source registry for storing Docker images or plugins, which can be useful for local or private deployments.

However while images may be easily stored in the registry using docker push, the registry lacks a command-line tool for querying the registry to list contents and/or pruning old images or deleting unwanted images.

docker-registry-tool is a simple tool for performing these actions.

Usage

Usage: ./docker-registry-tool [list|prune|delete] [OPTIONS]

  MANDATORY OPTIONS

  --registry <uri>                 - registry uri
  
  LIST/PRUNE OPTIONS
  
  --repo <repo>|--repos <repo>     - specify repo(s)
  --terse|--long                   - output format
  
  PRUNE OPTIONS
  
  --no-dry-run|--execute|-x        - actually delete
  --prune-older-than <age>         - prune only YYYYMMDDHHMMSS tags < <age> old
  --prune-less-than <tag>          - prune only tags alphanumerically < <tag>
  --prune-tag-format <date-format> - tag date format
  --prune-max <count>              - prune at most <count> tags per repo
  --gc-container <name|id>         - garbage collect in registry container <name|id>

  (<age> is any argument to 'date -d')
  (<date-format> is any FORMAT parsed by 'date')

  DELETE OPTIONS
  
  --digest <digest>                - digest(s) to delete