# Google Kubernetes Engine (GKE)

## Create a k8s cluster
	kusal@build:~$ gcloud container clusters create "cluster-1" \
         	--machine-type "g1-small" \
         	--image-type "COS" \
         	--disk-type "pd-standard" \
         	--disk-size "10" \
         	--num-nodes "1" \
         	--no-enable-ip-alias

## List the k8s clusters available on GKE
	kusal@build:~$ gcloud container clusters list
	NAME       LOCATION      MASTER_VERSION  MASTER_IP    MACHINE_TYPE  NODE_VERSION    NUM_NODES  STATUS
	cluster-1  asia-east1-b  1.20.8-gke.900  34.80.241.9  g1-small      1.20.8-gke.900  1          RUNNING

## Get authentication credentials and configure kubectl to use the cluster
	kusal@build:~$ gcloud container clusters get-credentials cluster-1
	Fetching cluster endpoint and auth data.
	kubeconfig entry generated for cluster-1.

## Create and initialize OCS Deployment
	kusal@build:~$ kubectl apply -f im-k8s/im-demo.yaml
	deployment.apps/sigscale-im created

## Get list of Deployments
	kusal@build:~$ kubectl get deployments
	NAME          READY   UP-TO-DATE   AVAILABLE   AGE
	sigscale-im   1/1     1            1           52m

## Get list of Pods
	kusal@build:~$ kubectl get pods
	NAME                           READY   STATUS    RESTARTS   AGE
	sigscale-im-6588fcbbc8-w9tz8   1/1     Running   0          53m

## Attach to a GKE pod deployment which runs im container
	kusal@build:~$ kubectl attach sigscale-im-6588fcbbc8-w9tz8 -c im -i -t
	If you don't see a command prompt, try pressing enter.

## Add REST Service
	kusal@build:~$ kubectl apply -f im-k8s/im-rest.yaml 
	service/im-rest created

## List all services
	kusal@build:~$ kubectl get services
	NAME         TYPE           CLUSTER-IP     EXTERNAL-IP     PORT(S)        AGE
	im-rest      LoadBalancer   10.43.240.41   34.81.115.221   80:31445/TCP   65s
	kubernetes   ClusterIP      10.43.240.1    <none>          443/TCP        7h20m

## Describe the deployment
	kusal@build:~$ kubectl describe deployment sigscale-im
	Name:                   sigscale-im
	Namespace:              default
	...

## Get all the PersistentVolumes
	kusal@build:~$ kubectl get pv