Challenge, Medium,  on  Kubernetes

Implement Canary Deployment Strategy

Scenario

An existing frontend-stable Deployment runs nginx:stable with 10 replicas in the canary namespace and serves custom HTML from the frontend-v1-config ConfigMap.

Implement a canary deployment strategy by creating a new Deployment named frontend-canary using the nginx:alpine image.

Configure the environment to achieve an 80/20 traffic split between the frontend-stable and frontend-canary deployments while maintaining a total of 10 replicas.

Ensure the frontend-service Service continues to target pods labeled app=frontend.

Mount thefrontend-v2-config ConfigMap at /usr/share/nginx/html using subPath: index.html, and add the labels app: frontend and version: v2 to the canary pods.

The diagram shows a canary deployment where 80% of traffic goes to the stable version and 20% to the canary version.

The diagram shows a canary deployment.

curl http://cplane-01:30007   # Test traffic — run multiple times, ~2 in 10 should hit canary
Hint

Adjust the deployments to achieve an 80/20 traffic split (8 stable / 2 canary) while maintaining 10 total pods.

💡Test Cases

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