Let’s publish a docker image to Docker Hub using a GitHub Action
I hope you already know GitHub is where you can put your git repositories likewise docker hub is where you can put your docker images. A Docker image is a file, comprised of multiple layers, that is used to execute code in a Docker container.
Prerequisites
- You must have a application 🤭
- You must have a docker hub account and docker hub repository
- Your GitHub repository should contain a Dockerfile
Note: — Your application language doesn't matter write a dockerfile correclty
Step 1 — Click on Actions Tab on your GitHub repository
Step 2 — Click on new workflow to create a new one
Step 3 — Choose your workflow template
Your repository is contain a Dockerfile so GitHub will suggest you Docker template.
Now click on set up this workflow
Step 4 — Change workflow file like below
Now your workflow is ready. Before your commit this yaml file. Open your GitHub repository in a new tab in your browser.
Step 5 — Add your DockerHub Secrets to GitHub
Go to Settings section
Then select secrets
Click on new secrets to add your secrets
Now you need to add your docker username and password as github secrets which are going to use in GitHub action.
Once you added username and password, you can see GitHub secrets section like this
Now come back to previous browser tab and commit your GitHub action.
Also you can see your docker image in docker hub repository
Thank you guys! Hope you enjoy the article. You can find this GitHub repository and DockerHub repository in below
Also don’t forgot to follow me on GitHub => Shehanka
