The following section contains step-by-step instructions on how to get started with Docker Hub.

Step 1: Sign up for a free Docker account#

Start by creating a Docker ID.

A Docker ID grants you access to Docker Hub repositories and lets you explore available images from the community and verified publishers. You also need a Docker ID to share images on Docker Hub.

[!TIP]

Explore Docker's core subscriptions to see what else Docker can offer you.

Step 2: Create your first repository#

To create a repository:

  1. Sign in to Docker Hub.
  2. On the Repositories page, select Create repository.
  3. Name it <your-username>/my-private-repo.
  4. Set the visibility to Private.
  5. Select Create.

You've created your first repository.

Step 3: Download and install Docker Desktop#

You need to download Docker Desktop to build, push, and pull container images.

  1. Download and install Docker Desktop.

  2. Sign in to Docker Desktop using the Docker ID you created in step one.

Step 4: Pull and run a container image from Docker Hub#

  1. In your terminal, run docker pull hello-world to pull the image from Docker Hub. You should see output similar to:

console $ docker pull hello-world Using default tag: latest latest: Pulling from library/hello-world 2db29710123e: Pull complete Digest: sha256:7d246653d0511db2a6b2e0436cfd0e52ac8c066000264b3ce63331ac66dca625 Status: Downloaded newer image for hello-world:latest docker.io/library/hello-world:latest

  1. Run docker run hello-world to run the image locally. You should see output similar to:

    ```console $ docker run hello-world Hello from Docker! This message shows that your installation appears to be working correctly.

    To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal.

    To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash

    Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/

    For more examples and ideas, visit: https://docs.docker.com/get-started/ ```

Step 5: 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:

dockerfile # syntax=docker/dockerfile:1 FROM busybox CMD echo "Hello world! This is my first Docker image."

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

  2. Run docker run <your_username>/my-private-repo to test your Docker image locally.

  3. Run docker push <your_username>/my-private-repo to push your Docker image to Docker Hub. You should see output similar to:

console $ cat > Dockerfile <<EOF FROM busybox CMD echo "Hello world! This is my first Docker image." EOF $ docker build -t mobythewhale/my-private-repo . [+] Building 1.2s (5/5) FINISHED => [internal] load build definition from Dockerfile => => transferring dockerfile: 110B => [internal] load .dockerignore => => transferring context: 2B => [internal] load metadata for docker.io/library/busybox:latest => CACHED [1/1] FROM docker.io/library/busybox@sha256:a9286defaba7n3a519 => exporting to image => => exporting layers => => writing image sha256:dcdb1fd928bf257bfc0122ea47accd911a3a386ce618 => => naming to docker.io/mobythewhale/my-private-repo $ docker run mobythewhale/my-private-repo Hello world! This is my first Docker image. $ docker push mobythewhale/my-private-repo The push refers to repository [docker.io/mobythewhale/my-private-repo] d2421964bad1: Layer already exists latest: digest: sha256:7604fbf8eeb03d866fd005fa95cdbb802274bf9fa51f7dafba6658294 efa9baa size: 526

>**Note**
>
> You must be signed in to Docker Hub through Docker Desktop or the command line, and you must also name your images correctly, as per the above steps.

  1. Your repository in Docker Hub should now display a new latest tag under Tags:

    Tag created

You've successfully:

  • Signed up for a Docker account
  • Created your first repository
  • Pulled an existing container image from Docker Hub
  • Built your own container image on your computer
  • Pushed it successfully to Docker Hub

Next steps#