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Build a Docker image and push it to Docker Hub

Feb 21, 2021 · 1 min read · Post a comment

This tutorial is aimed to show you how to build and push an image to the Docker Hub repo. Let’s jump on the steps bellow.

Prerequisites

  • Docker
  • Docker Hub account
  • sudo privileges

Build and push the image

Step 1. First, you need to login to your Docker Hub account and execute the docker login command.

sudo docker login --username=dockerhubusername --password=dockerhubpassword

Step 2. You can build the image with the docker build command.

sudo docker build -t $DOCKER_ACCOUNT/$DOCKER_REPO:$IMAGE_TAG .
  • $DOCKER_ACCOUNT: Name of your account.
  • $DOCKER_REPO: Repository name.
  • $IMAGE_TAG: Image tag.

Step 3. After building the image the next thing is to push the image to your Docker Hub repo and execute the docker push command.

sudo docker push $DOCKER_ACCOUNT/$DOCKER_REPO:$IMAGE_TAG

Conclusion

Knowing how to build and push an image to Docker Hub is a good practice, especially when you are doing an automatic deployment of your app using some CI/CD tools. Feel free to leave a comment below and if you find this tutorial useful, follow our official channel on Telegram.

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