Google Kubernetes Engine – GKE

 

Google Kubernetes Engine (also known as GKE) is a managed, production-ready environment for running Docker containers in the Google cloud.

It allows you to create multiple-node clusters while also providing access to all Kubernetes features.

Create A Kubernetes Cluster using GCP console

Login into GCP console with your Gmail account. By default, it will create a project “My Project” for you. It is mandatory to complete the billing verification to use GCP services. Once Billing account verified you can use all services with $300 credit.

1. Click on left side menu bar, scroll down and click on Kubernetes Engine.

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2. In the clusters page, Click on “Create cluster“

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3. In the next page, choose cluster type and modify the details as per your requirement and click on the “Create” button. It will take 2 to 3 mins to create a cluster for you.

cluster_type.PNG

cluster_config

4. Once the cluster is created, click on the “connect” button. It will give you a command to run on a cloud shell. Copy the command and run in the cloud shell.

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connect_cluster

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cloushell_connected

5. Kubectl is available in the cloud shell by default. To check the nodes, run the “kubectl get nodes” command in the cloud shell.

kubectl_verify

Now, you can deploy your containerized application on Google Kubernetes Engine.  

Create a cluster using gcloud CLI commands

Connect to cloud shell using the cloud shell button and click on the new window icon to open in the new tab.

cloushell_icon

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Step 1: Set the region to launch cluster nodes

$ gcloud config set compute/zone us-east1-b

Step 2: Create a network for your cluster, or you can use the default network.

$ gcloud compute networks create my-cluster-network

 Step 3: Create a cluster with the required configuration

$ gcloud container clusters create my-cluster \
--enable-cloud-logging \
--enable-cloud-monitoring \
--num-nodes 3 \
--disk-size 30G \
--network my-cluster-network

 The above command will create a new cluster for you.

new_cluster

Step 4: Get credentials for your cluster. Kubernetes Engine uses these credentials to access your newly provisioned cluster.

$ gcloud container clusters get-credentials my-cluster

Now check with kubectl

$ kubectl get nodes
NAME                                      STATUS ROLES  AGE VERSION
gke-my-cluster-default-pool-2d75839c-f1h3 Ready   5m  v1.11.6-gke.2
gke-my-cluster-default-pool-2d75839c-m3j7 Ready   5m  v1.11.6-gke.2
gke-my-cluster-default-pool-2d75839c-vx44 Ready   5m  v1.11.6-gke.2

To delete the cluster, run the following command :

$ gcloud container clusters delete my-cluster

You can also delete the cluster from the console as well.

delete