Publicando mi imagen de docker a la nube con CI/CD

How to deploy an application with Azure and Docker using GitHub Actions?

In today's technology world, deploying applications is not just a necessity, but an essential skill. Approaching continuous deployment using tools like Azure, Docker and GitHub Actions can greatly simplify the process, making it more efficient and less prone to manual errors. Here, we will explore how to effectively set up this workflow.

How to create a web app in Azure?

The first step to deploying your application in the cloud is to set up a web app in Azure. This will allow you to host your Docker container for public access and ensures that any updates are reflected immediately. To do this:

1. Log in to the Azure portal and select "Web App" from the available options.
2. Choose the option for containers and opt for Linux as the operating system.
3. Configure the resource pool and choose an appropriate region, e.g. EastUS.
4. Select a basic plan to keep costs low for initial testing.
5. Configure the network settings to allow public access.

How to link DockerHub to Azure?

Once the web app is created, it is imperative to link it to the Docker image you want to deploy from DockerHub. Make sure to:

• Configure in the containers section the access to your DockerHub public image.
• Correctly insert the hub URL, the image name and its tag (e.g. latest).

How to configure GitHub Actions for continuous deployment?

GitHub Actions allows you to automate deployment by transferring your changes from the GitHub repository to the web app in Azure without manual intervention. Configure your GitHub Actions by following these steps:

1. Head to Settings in your GitHub repository and add a new secret called Azure WebApp Publish Profile.
2. Upload the publishing profile from Azure into this secret, ensuring that the credentials are protected.
3. Edit your YAML file in .github/workflows to include an authentication step that uses the new secret: ````yaml
   • name: Authenticate to Azure uses: azure/webapps-deploy@v2 with: app-name: 'AminES WebApp' publish-profile: ${{ secrets.AZURE_WEBAPP_PUBLISH_PROFILE }} images: 'amin_espinosa/website_platzi:latest' ````
4. Adjust the workflow to cover the steps from building and publishing the image to deployment.

What to expect after setup?

• When you commit to your repository, it will automatically trigger the flow that will perform the Docker Build, Docker Push and finally the deployment of the new image.
• You can monitor the status of the deployment directly from the Actions section in your repository and watch as the changes are implemented in real time.

With patience and dedication, even if you are a beginner, you will soon master the art of continuous deployment, saving time and minimizing human error in the process. This experience promises to empower your DevOps skills, helping you excel in the management and evolution of your projects. Go ahead, every step counts on your way to success!