12/28/2021

Install Local Docker Registry

19

Install the Harbor Container Image Registry Locally. In this post I’ll deploy a Harbor image registry on a local OSX workstation/laptop. Requirements: OSX; Brew; Docker for Desktop; Kind. Kind stands for “Kubernetes in Docker” and is an easy way to get a local Kubernetes cluster running. One of the things that makes Docker so useful is how easy it is to pull ready-to-use images from a central location, Docker’s Central Registry.It is just as easy to push your own image (or collection of tagged images as a repository) to the same public registry so that everyone can benefit from your newly Dockerized service. In this post, I will explain how you can set up a local Docker Registry on your Mac in a few easy steps. To keep things simple, however, you can issue the below command. [email protected] /D/quote-randomizer docker run -d -p 5005:5005 -restart=always -name registry registry:2. Unable to find image 'registry:2' locally.

  1. Install Local Docker Registry Windows
  2. Install Local Docker Registry Ubuntu
  3. Install Local Docker Registry Windows 10
  4. Install Local Docker Registry Windows
  5. Install Local Docker Registry Centos 7
  6. Install Local Docker Registry
DockerInstall local docker registry windows 10

One of the things that makes the Docker Platform so powerful is how easy it is to use images from a central location. Docker Hub is the premier Image Repository with thousands of Official Images ready for use. It’s also just as easy to push your own images to the Docker Hub registry so that everyone can benefit from your Dockerized applications.

But in certain scenarios, you might not want to push your images outside of your firewall. In this case you can set up a local registry using the open source software project Distribution. In this article we’ll take a look at setting up and configuring a local instance of the Distribution project where your teams can share images with docker commands they already know: docker push and docker pull.

Prerequisites

To complete this tutorial, you will need the following:

  • Free Docker Account
    • You can sign-up for a free Docker account and receive free unlimited public repositories
  • Docker running locally

Install Local Docker Registry Windows

Running the Distribution service

The Distribution project has been packaged as an Official Image on Docker Hub. To run a version locally, execute the following command:

$ docker run -d -p 5000:5000 --name registry registry:2.7

The -d flag will run the container in detached mode. The -p flag publishes port 5000 on your local machine’s network. We also give our container a name using the --name flag. Check out our documentation to learn more about these and all the flags for the docker run command.

Windows

Pushing and Pulling from a local registry

Now that we have our registry running locally, let’s tail the container’s logs so we can verify that our image is being pushed and pulled locally:

$ docker logs -f registry

Install Local Docker Registry Ubuntu

Open another terminal and grab the Official Ubuntu Image from Docker Hub. We’ll use this image in our example below:

$ docker pull ubuntu

To push to or pull from our local registry, we need to add the registry’s location to the repository name. The format is as follows: my.registry.address:port/repositoryname.

In our example, we need to replace my.registry.address.port with localhost:5000 because our registry is running on our localhost and is listening on port 5000. Here is the full repository name: localhost:500/ubuntu. To do this, we’ll run the docker tag command:

$ docker tag ubuntu localhost:5000/ubuntu

Now we can push to our local registry.

Install Local Docker Registry Windows 10

Install Local Docker Registry

$ docker push localhost:5000/ubuntu

NOTE:

Docker looks for either a “.” (domain separator) or “:” (port separator) to learn that the first part of the repository name is a location and not a user name. If you just had localhost without either .localdomain or :5000 (either one would do) then Docker would believe that localhost is a username, as in localhost/ubuntu or samalba/hipache. It would then try to push to the default Registry which is Docker Hub. Having a dot or colon in the first part tells Docker that this name contains a hostname and that it should push to your specified location instead.

Switch back to the terminal where our registry logs are being tailed. If you review the logs, you will see entries displaying the request to save our ubuntu image:

Now let’s remove our localhost:5000/ubuntu image and then pull the image from our local repository to make sure everything is working properly.

First print a list of images we have locally:

Now remove the localhost:5000/ubuntu:latest image from our local machine:

Let’s double check the image has been removed:

Finally pull the image from our local registry and verify that it is now pulled to our local instance of Docker.

Summary

Install Local Docker Registry Windows

Local

Install Local Docker Registry Centos 7

In this article, we took a look at running an image registry locally. We also pulled an image for Docker Hub, tagged the image with our local registry and then pushed that image to our local registry running Distribution.

Install Local Docker Registry

If you would like to learn more about the Distribution project, head on over to the open source project homepage on GitHub and be sure to check out the documentation.

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