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How to clean a Docker environment from unwanted images

  • Docker is a containerization technology that can quickly create a cluttered environment with unused and unwanted images.
  • Docker images are the fundamental building blocks of Docker containers, stored in a Docker registry.
  • Identifying and listing unused Docker images can be performed through various Docker commands.
  • Use 'docker images' command to list all the Docker images and 'docker image prune' command to identify and list all the unused images.
  • Removing unwanted Docker images can be done by using 'docker rmi' command to remove a specific image or use 'docker image prune' command to remove dangling or unused images.
  • 'docker image prune' command with '-a' option to remove all unused images from the Docker environment.
  • Maintaining a clean environment is important for optimal performance and reducing unnecessary resource consumption.

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