Progressive delivery concept in Kubernetes - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is progressive delivery in software deployment?

Progressive delivery is a way to release new software features slowly to a small group of users first, then gradually to everyone. It helps catch problems early and reduce risks.

beginner

Name two common techniques used in progressive delivery.

Two common techniques are canary releases and feature flags. Canary releases send new versions to a small user group. Feature flags turn features on or off without new deployments.

intermediate

How does Kubernetes support progressive delivery?

Kubernetes supports progressive delivery by allowing multiple versions of an app to run together. Tools like Argo Rollouts help manage canary releases and gradual traffic shifting.

beginner

What is a canary release?

A canary release is when a new version of software is given to a small group of users first. If it works well, it is rolled out to more users. This reduces the chance of big problems.

intermediate

Why is monitoring important in progressive delivery?

Monitoring helps detect issues early during progressive delivery. It tracks errors, performance, and user feedback so teams can stop or fix a release before it affects many users.

What is the main goal of progressive delivery?

A Deploy all features to all users at once

B Reduce risk by releasing features gradually

C Avoid testing new software versions

D Remove old versions immediately

Progressive delivery aims to reduce risk by releasing new features slowly to a small group first.

Which Kubernetes tool helps manage canary releases?

A Argo Rollouts

B kubectl get pods

C Helm charts

D Docker Compose

Argo Rollouts is a Kubernetes tool designed to manage progressive delivery techniques like canary releases.

What does a feature flag do?

A Turns features on or off without redeploying

B Deletes old software versions

C Monitors server health

D Scales pods automatically

Feature flags allow teams to enable or disable features dynamically without new deployments.

In progressive delivery, what is a canary release?

A Rolling back to a previous version

B Deploying software to all users simultaneously

C Releasing new software to a small user group first

D Testing software only in development

A canary release means giving the new version to a small group first to test it in real conditions.

Why is monitoring critical during progressive delivery?

A To avoid using feature flags

B To speed up deployment

C To increase server costs

D To detect problems early and stop bad releases

Monitoring helps catch issues early so teams can fix or stop a release before it affects many users.

Explain what progressive delivery is and why it is useful in software deployment.

Think about how releasing slowly helps avoid big mistakes.

Describe how Kubernetes can be used to implement progressive delivery.

Consider how Kubernetes manages app versions and traffic.