Docker Hub Quickstart

This article is referred from Docker Hub Quickstart

Docker Hub is a service provided by Docker for finding and sharing container images with your team. It provides the following major features:

Repositories: Push and pull container images.
Teams & Organizations: Manage access to private repositories of container images.
Official Images: Pull and use high-quality container images provided by Docker.
Publisher Images: Pull and use high- quality container images provided by external vendors. Certified images also include support and guarantee compatibility with Docker Enterprise.
Builds: Automatically build container images from GitHub and Bitbucket and push them to Docker Hub.
Webhooks: Trigger actions after a successful push to a repository to integrate Docker Hub with other services.

Step 1: Sign up for Docker Hub

Start by creating an account.

Step 2: Create your first repository

To create a repo:

1. Sign in to Docker Hub.

2. Click on "Create a Repository" on the Docker Hub welcome page:

1. Name it <your-username>/my-first-repo as shown below. Select "Private":

You’ve created your first repo. You should see:

Step 3: Download and install Docker Desktop

We’ll need to download Docker Desktop to build and push a container image to Docker Hub.

Download and install Docker Desktop. If on Linux, download Docker Engine - Community.

Open the terminal and sign in to Docker Hub on your computer by running docker login

Step 4: Build and push a container image to Docker Hub from your computer

1. Start by creating a Dockerfile to specify your application as shown below:

   cat > Dockerfile <<EOF
   FROM busybox
   CMD echo "Hello world! This is my first Docker image."
   EOF

2. Run docker build -t <your_username>/my-first-repo . to build your Docker image.

3. Test your docker image locally by running docker run <your_username>/my-first-repo

4. Run docker push <your_username>/my-first-repo to push your Docker image to Docker Hub.

You should see output similar to:

And in Docker Hub, your repository should have a new latest tag available under Tags:

Congratulations! You’ve successfully:
Signed up for Docker Hub
Created your first repository
Built a Docker container image on your computer
Pushed it to Docker Hub

Next steps
Create an organization to use Docker Hub with your team.
Automatically build container images from code through builds.
Explore official & publisher images.
Upgrade your plan to push additional private Docker images to Docker Hub.