Switching namespace context in Kubernetes - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Kubernetes namespace?

A Kubernetes namespace is like a folder that helps organize and separate resources in a cluster. It allows you to group related resources together.

beginner

How do you check the current namespace context in kubectl?

Use the command kubectl config view --minify --output 'jsonpath={..namespace}' to see the current namespace set in your context.

beginner

What command switches the current namespace context to 'dev'?

Run kubectl config set-context --current --namespace=dev to switch your current context to the 'dev' namespace.

beginner

Why is switching namespaces useful in Kubernetes?

Switching namespaces lets you work on different projects or environments without mixing resources. It keeps things organized and safe.

beginner

How to list all namespaces in a Kubernetes cluster?

Use kubectl get namespaces to see all namespaces available in your cluster.

Which command changes your current namespace to 'test'?

A kubectl switch namespace test

B kubectl config set-context --current --namespace=test

C kubectl change namespace test

D kubectl set namespace test

The correct command is kubectl config set-context --current --namespace=test to switch namespace context.

What does a Kubernetes namespace help you do?

A Organize resources into groups

B Increase cluster CPU

C Change pod images

D Delete the cluster

Namespaces help organize and separate resources inside a Kubernetes cluster.

How do you see the current namespace your kubectl is using?

A kubectl get current namespace

B kubectl show namespace

C kubectl namespace current

D kubectl config view --minify --output 'jsonpath={..namespace}'

Use kubectl config view --minify --output 'jsonpath={..namespace}' to check the current namespace.

What happens if you don’t specify a namespace in kubectl commands?

A kubectl uses the default namespace

B kubectl fails with error

C kubectl deletes all namespaces

D kubectl creates a new namespace

If no namespace is specified, kubectl uses the 'default' namespace.

Which command lists all namespaces in your Kubernetes cluster?

A kubectl list namespaces

B kubectl show namespaces

C kubectl get namespaces

D kubectl namespaces list

The command kubectl get namespaces lists all namespaces.

Explain how to switch your current kubectl context to a different namespace and why you might want to do this.

Think about how namespaces separate resources and how kubectl context controls where commands run.

Describe how to check which namespace your kubectl commands are currently using.

Look at the kubectl config and how it shows the active namespace.