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AWS CodePipeline Interview Questions(Level-3)

By Manisha

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These questions are designed to assess your expertise in optimizing and securing AWS CodePipeline for complex scenarios.

7. How do you optimize AWS CodePipeline for high availability?

Answer: To enhance high availability:

  • Multi-Region Deployments: Deploy applications across multiple AWS regions to prevent regional failures.
  • Cross-Region Replication: Use Amazon S3 cross-region replication for artifacts.
  • Monitoring and Alerts: Implement Amazon CloudWatch alarms to monitor pipeline health and trigger alerts.
  • Automated Rollbacks: Configure AWS CodeDeploy to automatically roll back deployments in case of failures.

8. How can you secure AWS CodePipeline?

Answer: Security best practices include:

  • IAM Roles and Policies: Assign least privilege access to pipeline components.
  • Artifact Encryption: Encrypt artifacts stored in Amazon S3 using AWS KMS.
  • Access Controls: Implement strict access controls and audit logging with AWS CloudTrail.
  • Secure Variables: Use AWS Systems Manager Parameter Store or AWS Secrets Manager to manage sensitive information.

9. What are the different deployment strategies supported by AWS CodeDeploy?

Answer: AWS CodeDeploy supports several deployment strategies:

  • In-Place Deployment: Updates the application on each instance in the deployment group.
  • Blue/Green Deployment: Creates a new environment (green) for the new version and shifts traffic from the old environment (blue) to the new one.
  • Canary Deployment: Gradually shifts traffic to the new version by deploying to a small subset of instances before a full rollout.
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