Docker Private Registry Setup

What is Registry?

The Registry is a stateless, highly scalable server side application that stores and lets you distribute Docker images.

Why use it?

You should use the Registry if you want to:

• tightly control where your images are being stored
• fully own your images distribution pipeline
• integrate image storage and distribution tightly into your in-house development workflow

Default Registry Port : 5000

Requirements:

The Registry is compatible with Docker engine?version 1.6.0 or higher.

Deploying a registry server:

Before we can deploy a registry server/container, we need to install docker on the host machine. A registry is an instance of the?registry?image.

Use the command below to start the registry container:

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

Step 1 : Configure a Private Docker Registry

Add the following configuration in the?/etc/docker/daemon.json:

Step 2 : Create a docker instance of registry

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

Step 3 : Tag the images with the registry name (as mentioned in insecure registries).

Step 4 : Download docker image from internet or create any docker custom docker image.

Step 5: Tag the docker image with local registry name and then push the image to local registry.

Step 6 : Delete/Untag the downloaded docker image.

Step 7 : Deploy a docker container with the image present in local registry.

Voila, we're all set.