Google Professional Cloud DevOps Engineer Question 53
Select 3Google Cloud PlatformYou are tasked with designing a CI/CD pipeline for a microservices-based application running on Google Kubernetes Engine (GKE). One of the requirements is to minimize deployment downtime while ensuring that any issues discovered during or after deployment can be rolled back quickly. Which combination of strategies should you implement in your pipeline to meet these requirements?
- A
Use a canary deployment strategy to release updates incrementally to a subset of users.
- B
Leverage a blue/green deployment strategy to switch traffic between environments without downtime.
- C
Deploy updates directly to the production environment to reduce deployment time.
- D
Implement automated rollback processes using monitoring and error detection tools.
- E
Configure a manual approval step for all deployments to production.
Show answer and explanation
Correct answers: A, B, D
Explanation
To minimize downtime and ensure quick rollbacks in a CI/CD pipeline for GKE, strategies like canary deployments and blue/green deployments are essential. Both approaches allow for safer and more controlled rollouts while reducing the risk of downtime. Automated rollback processes further enhance the pipeline's resilience by enabling faster recovery from issues. Deploying directly to production and relying solely on manual approvals do not align with the goals of minimizing downtime or ensuring rapid rollback.
- A. Correct.
Using a canary deployment strategy allows you to release updates to a small subset of users initially, which minimizes the risk of exposing all users to potential issues and helps ensure stability.
- B. Correct.
A blue/green deployment strategy enables you to run two environments (blue and green) simultaneously, allowing for seamless switching between the environments and reducing downtime.
- C. Incorrect.
Deploying updates directly to the production environment without any safety mechanisms increases the risk of downtime and complicates rollback procedures if issues arise.
- D. Correct.
Automated rollback processes help ensure quick recovery from issues detected during or after deployment, making it a critical part of a robust CI/CD pipeline.
- E. Incorrect.
While manual approval steps can provide oversight, they introduce delays and are not specifically aimed at minimizing downtime or ensuring quick rollbacks.