Exercise 8.3: Creating a Persistent Volume Claim (PVC)

1. CP 노드에 연결된 터미널로 이동

2. 생성된 PVC가 있는지 확인

   kubectl get pvc

3. PVC 생성

   cat <<EOF | kubectl create -f -
   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:
     name: pvc-one
   spec:
     accessModes:
     - ReadWriteMany
     resources:
        requests:
          storage: 200Mi
   EOF

4. 생성된 PVC 확인

   kubectl get pvc pvc-one

5. 이전 실습에서 생성된 PV 확인

   kubectl get pv nfs

6. Deployment 생성

   cat <<EOF | kubectl create -f -
   apiVersion: apps/v1
   kind: Deployment
   metadata:
     labels:
       run: nginx
     name: nginx-nfs
   spec:
     selector:
       matchLabels:
         run: nginx
     template:
       metadata:
         labels:
           run: nginx
       spec:
         containers:
         - image: nginx
           imagePullPolicy: Always
           name: nginx
           volumeMounts:
           - name: nfs-vol
             mountPath: /opt
           ports:
           - containerPort: 80
             protocol: TCP
         volumes:
         - name: nfs-vol
           persistentVolumeClaim:
             claimName: pvc-one
   EOF

7. 생성된 Pod 확인

   kubectl get pod -l run=nginx

8. 생성된 Pod 상세 내용 확인

   kubectl describe pod POD_NAME

   OR

   kubectl describe pod $(kubectl get pod -l run=nginx -o=jsonpath='{.items[0].metadata.name}') 

9. Pod가 생성되지 않을 경우에는 이유를 찾아서 고치세요

10. PVC 상태 확인

    kubectl get pvc pvc-one