Docker - Registry (Remote Image Store)

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A Docker Registry is a remote store of Docker images.

Technically, a registry is an instance of the registry image, and runs within Docker.

Docker store allows you to buy and sell Docker images or distribute them for free.



  • Docker Hub (default)
  • Docker Cloud




Docker is configured to look for images on Docker Hub by default.


  • Start your registry
docker run -d -p 5000:5000 --name registry registry:2
  • Stop the registry and remove all data
docker container stop registry && docker container rm -v registry


When you use

  • the docker pull or docker run commands, the required images are pulled from your configured registry.
  • the docker push command, your image is pushed to your configured registry.


  • Tag the image so that it points to your registry
docker image tag ubuntu localhost:5000/myfirstimage
docker push localhost:5000/myfirstimage
docker pull localhost:5000/myfirstimage

Documentation / Reference

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Docker - Linux Container (Ubuntu, Redhat, )

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Docker - Pull

Docker pull will get an image from a registry (default docker hub) and store it locally The pull command will also ensure the latest version of the image is downloaded.
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Docker - Push

When you use the docker push command, your image is pushed to your configured registry (default docker hub)

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