Private Docker Registry Setup Guide

Setting up a Docker private registry can be done using Docker’s official tool, Docker Registry, or third-party tools like Harbor. Here are some simple steps for setting up a private registry using Docker Registry.

1. Install Docker Registry.

To install Docker Registry on a server, you can use the official Docker image.

docker run -d -p 5000:5000 --restart=always --name registry registry:2

This command will start a Docker Registry container on the server and map it to local port 5000.

1. Set up the Docker client.

Before using a private repository, you need to configure the address of the private repository in the Docker client. Edit the /etc/docker/daemon.json file and add the following content:

{
  "insecure-registries": ["your-registry-address:5000"]
}

Then restart the Docker service.

sudo systemctl restart docker

1. Using a private repository.

Now you can push the locally built images to a private repository.

docker tag your-image your-registry-address:5000/your-image
docker push your-registry-address:5000/your-image

Images can also be pulled from a private repository.

docker pull your-registry-address:5000/your-image

Here are the simple steps to set up a private repository using Docker Registry, for more advanced features, consider using third-party tools like Harbor.