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1-Deploy-App-to-ACR.md

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Deploy sample Application to Container Registry

🎯 Purpose

Deploy a sample application to the Azure Container Registry (ACR) and ensure it's ready for further use in your Azure environment.

1. Test the Docker Image Locally

  1. Build and run the Docker image on your local machine. Follow the instructions here.
  2. Verify the application's functionality

🔍 Verification:

  1. Confirm the application runs without errors locally

🧠 Knowledge Check:

  1. Why is local testing important before deploying to ACR?

💡 Pro Tip: Use Docker Compose for local testing if your application has multiple services.

2. Create ACR Service Connection in Azure DevOps

We aim to run the Docker build and publish the image directly to the Azure Container Registry created in lab 2.

  1. Create a new service connection for ACR access that will authenticate using Workload Identity federation.
  • In your Azure DevOps Project, go to Project Settings.
  • Select Service Connections.
  • Click New Service Connection and choose Docker Registry.
  • Select the registry type: Azure Container Registry.
  • Choose the correct ACR and create a service connection name. For example, devopsjourneyoct2024acr

🔍 Verification:

  1. Confirm the service connection is created and functional

🧠 Knowledge Check:

  1. Why is Workload Identity federation preferred for authentication?

💡 Pro Tip: Use a naming convention for your service connections to easily identify their purpose.

3. Copy Application to Azure DevOps Repository

4. Copy Application Folder to Azure DevOps Repository

  1. Update pipeline in Azure DevOps repo with the below updates:
  • Updated variables
    • repository: ACR repository name
    • dockerfile: Dockerfile location
    • containerRegistry: Service connection name of container registry
  • Add Build Stage

  1. Copy the app folder to your Azure DevOps repository.

🔍 Verification:

  1. Ensure all necessary files are present in the repository.

🧠 Knowledge Check:

  1. How does storing application code in the same repository as pipeline code benefit the project?
  2. What is the purpose of each variable you're updating?

💡 Pro Tip: Use variable groups in Azure DevOps to manage environment-specific variables.

5. Run Azure DevOps Pipeline and Review Results

  1. Run pipeline, you will see an additional stage on pipeline

  1. Reviewing in ACR, you will see the image

🔍 Verification:

  1. Confirm the new stage completes successfully
  2. Check ACR for the newly pushed image

🧠 Knowledge Check:

  1. How would you troubleshoot if the new stage fails?

💡 Pro Tip: Set up automated notifications for pipeline failures to catch issues early.