A/B testing with Ingress in Kubernetes - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is A/B testing in the context of Kubernetes Ingress?

A/B testing is a method to compare two versions of an application by routing a portion of user traffic to each version using Kubernetes Ingress rules.

beginner

How does Kubernetes Ingress help implement A/B testing?

Ingress can route traffic based on rules like URL paths or headers, allowing splitting user requests between different backend services representing different app versions.

intermediate

What is a common way to split traffic for A/B testing using Ingress?

Using annotations or Ingress controllers that support weighted routing to send a percentage of traffic to different backend services.

intermediate

Name one popular Ingress controller that supports advanced traffic splitting for A/B testing.

NGINX Ingress Controller supports annotations for traffic splitting and can be used for A/B testing.

beginner

Why is monitoring important during A/B testing with Ingress?

Monitoring helps track user behavior and performance on each version to decide which one works better before full rollout.

What does A/B testing with Kubernetes Ingress primarily involve?

A Scaling pods automatically

B Backing up cluster data

C Updating container images

D Routing traffic between two versions of an app

A/B testing involves routing traffic between different app versions to compare them.

Which Ingress feature is commonly used to split traffic for A/B testing?

A Persistent volumes

B Pod autoscaling

C Weighted routing

D Namespace isolation

Weighted routing allows sending a percentage of traffic to different backends.

Which annotation might you use with NGINX Ingress for traffic splitting?

A kubernetes.io/ingress.class

B nginx.ingress.kubernetes.io/canary-weight

C nginx.ingress.kubernetes.io/rewrite-target

D kubernetes.io/limit-rps

The canary-weight annotation sets the traffic percentage for canary deployments.

Why should you monitor traffic during A/B testing?

A To compare performance and user experience

B To increase pod replicas

C To backup data

D To update Ingress rules automatically

Monitoring helps decide which version performs better.

What is a canary deployment in the context of A/B testing?

A A small portion of traffic sent to a new version

B A full rollout of a new version

C Deleting old pods

D Scaling down services

Canary deployment sends a small traffic portion to test a new version.

Explain how Kubernetes Ingress can be configured to perform A/B testing between two application versions.

Think about how traffic can be divided between different services using Ingress.

Describe why monitoring is crucial during an A/B test using Ingress and what metrics you might watch.

Consider what information helps decide which app version is better.