Kubectl configuration for GKE in GCP - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is kubectl used for in GKE?

kubectl is a command-line tool that lets you communicate with your Kubernetes cluster on GKE. You use it to deploy applications, inspect resources, and manage the cluster.

beginner

How do you configure kubectl to connect to a GKE cluster?

You run the command gcloud container clusters get-credentials [CLUSTER_NAME] --zone [ZONE] --project [PROJECT_ID]. This updates your local kubeconfig file with the cluster's access info.

beginner

What is the kubeconfig file?

The kubeconfig file stores information about clusters, users, and contexts. It tells kubectl how to connect to your Kubernetes clusters.

beginner

Why do you need to specify the project and zone when configuring kubectl for GKE?

Because GKE clusters are created in specific Google Cloud projects and zones. Specifying these tells gcloud which cluster to get credentials for.

beginner

What command checks if kubectl is properly configured to talk to your GKE cluster?

Use kubectl get nodes. If it returns a list of nodes, your configuration works and you are connected to the cluster.

Which command updates your local kubectl configuration to connect to a GKE cluster?

A kubectl config set-context [CONTEXT_NAME]

B kubectl apply -f cluster.yaml

C gcloud auth login

D gcloud container clusters get-credentials [CLUSTER_NAME] --zone [ZONE] --project [PROJECT_ID]

The gcloud container clusters get-credentials command fetches cluster info and updates your kubeconfig file for kubectl.

What does the kubeconfig file contain?

A Cluster, user, and context information for kubectl

B Source code of your applications

C Google Cloud billing details

D Docker container images

The kubeconfig file stores connection details so kubectl knows how to reach your Kubernetes clusters.

If you run kubectl get nodes and see a list of nodes, what does it mean?

A kubectl is connected to the cluster successfully

B Your cluster is empty

C kubectl is not configured

D You need to restart your computer

Seeing nodes means kubectl can communicate with the cluster and retrieve information.

Why must you specify the project ID when configuring kubectl for GKE?

A To set your billing account

B Because clusters belong to specific Google Cloud projects

C To create a new cluster

D To install kubectl

Clusters are organized under projects, so specifying the project tells gcloud which cluster to access.

Which tool do you use to configure kubectl for GKE?

A terraform

B docker

C gcloud

D helm

The gcloud command-line tool manages Google Cloud resources and configures kubectl for GKE.

Explain the steps to configure kubectl to connect to a GKE cluster.

Think about how you tell kubectl where your cluster lives and how to access it.

Describe the role of the kubeconfig file in kubectl configuration for GKE.

It's like an address book for kubectl.