aws-eks-pv-steps.txt

aws-eks-pv-steps.txt

# these steps work with AWS EKS kubernetes v1.14 and kubespray v2.12.2 kubernetes v1.16.7 cloud:aws

kubectl apply -f ebs-gp2-storageclass.yml
# if using kubespray cloud aws then you need to set storageclass, eks has this set by default
# gp2-storageclass.yml
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: gp2
  annotations:
    storageclass.kubernetes.io/is-default-class: "true"
provisioner: kubernetes.io/aws-ebs
parameters:
  type: gp2
  zone: us-east-1b
  iopsPerGB: "32"
  
aws-vault exec dmk-api -- aws eks update-kubeconfig --name dmk-eks1
aws-vault exec dmk-api -- kubectl cluster-info
aws-vault exec dmk-api -- kubectl get nodes -o wide
aws-vault exec dmk-api -- kubectl apply -f ebs-claim1.json
# ebs-claim1.json 
{
  "kind": "PersistentVolumeClaim",
  "apiVersion": "v1",
  "metadata": {
    "name": "claim1",
    "annotations": {
        "volume.beta.kubernetes.io/storage-class": "gp2"
    }
  },
  "spec": {
    "accessModes": [
      "ReadWriteOnce"
    ],
    "resources": {
      "requests": {
        "storage": "12Gi"
      }
    }
  }
}

aws-vault exec dmk-api -- kubectl apply -f pv-pod.yml
# pv-pod.yml
apiVersion: v1
kind: Pod
metadata:
  name: pv-pod
spec:
  volumes:
    - name: pv-storage
      persistentVolumeClaim:
        claimName: claim1
  containers:
    - name: pv-container
      image: nginx
      ports:
        - containerPort: 80
          name: "http-server"
      volumeMounts:
        - mountPath: "/usr/share/nginx/html"
          name: pv-storage
  
# wait for pod to start
aws-vault exec dmk-api -- kubectl get po,pv,pvc
# write a tmp file to /usr/share/nginx/html
aws-vault exec dmk-api -- kubectl exec -it pod/pv-pod bash
echo "persisted data" > /usr/share/nginx/html/tmp.txt
# delete the pod 
aws-vault exec dmk-api -- kubectl delete pod/pv-pod
# start the container again
aws-vault exec dmk-api -- kubectl apply -f pv-pod.yml
# verify 
aws-vault exec dmk-api -- kubectl exec -it pod/pv-pod cat /usr/share/nginx/html/tmp.txt
# delete the pod 
aws-vault exec dmk-api -- kubectl delete pod/pv-pod
# delete the volume
aws-vault exec dmk-api -- kubectl delete pvc/claim1
# verify volume deleted
aws-vault exec dmk-api -- kubectl get po,pv,pvc