Publish Image to Docker Hub¶

To share your image with your team or the public, you should store it in a Docker registry. Docker Hub serves as a registry that enables you to either privately share your images with your team or make them accessible to the public.

Let's see how you can do that.

Step 1: Create an Account on Docker Hub¶

Visit Docker Hub and create an account.

Step 2: Create a Repository¶

A Docker repository is a collection of Docker images that are stored and made available for others to use and download.

Let's create a public repository named node-express.

Step 3: Push Image to Docker Repository¶

1. Login to Docker Hub

   docker login
   

2. Re-tag the Docker image you want to push

   # Command template
   docker tag <existing-image>:<tag> <docker-hub-username>/<repository-name>:<tag>
   
   # Actual command
   docker tag my-node-express-image:v1 reyanshkharga/node-express:v1
   

3. Push the image to repository

   # Command template
   docker push <docker-hub-username>/<repository-name>:<tag>
   
   # Actual command
   docker push reyanshkharga/node-express:v1
   

Step 4: Verify the Image in Docker Hub¶

Go to Docker Hub and verify if the image is pushed. Now, if the image is public, anyone can pull the image.