Linux Foundation CKA Quiz 12 Topic 6 Questions 56-60

Question: 1

Create a hostPath PersistentVolume named task-pv-volume with storage 10Gi, access modes ReadWriteOnce, storageClassName manual, and volume at /mnt/data and verify

Avim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: ''
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
hostPath:
path: '/mnt/data'
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
NAME CAPACITY ACCESS
MODES RECLAIM POLICY STATUS CLAIM
STORAGECLASS REASON AGE
task-pv-volume 5Gi RWO
Retain Available
3s

Bvim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: ''
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
hostPath:
path: '/mnt/data'
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
NAME CAPACITY ACCESS
MODES RECLAIM POLICY STATUS CLAIM
STORAGECLASS REASON AGE
task-pv-volume 4Gi RWO
Retain Available
8s

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Question: 2

Create a PersistentVolumeClaim of at least 3Gi storage and access mode ReadWriteOnce and verify status is Bound

Avim task-pv-claim.yaml
apiVersion: v2
kind: PersistentVolumeClaim
metadata:
name: task-pv-claim
spec:
storageClassName: ''''
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 4Gi
kubectl apply -f task-pv-claim.yaml
//Verify
kubectl get pv
NAME CAPACITY ACCESS
MODES RECLAIM POLICY STATUS CLAIM
STORAGECLASS REASON AGE
task-pv-volume 4Gi RWO
Retain Bound default/task-pv-claim
6m16s
kubectl get pvc
NAME STATUS VOLUME
CAPACITY ACCESS MODES STORAGECLASS AGE
task-pv-claim Bound task-pv-volume
5Gi RWO 6s

Bvim task-pv-claim.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: task-pv-claim
spec:
storageClassName: ''''
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 3Gi
kubectl apply -f task-pv-claim.yaml
//Verify
kubectl get pv
NAME CAPACITY ACCESS
MODES RECLAIM POLICY STATUS CLAIM
STORAGECLASS REASON AGE
task-pv-volume 5Gi RWO
Retain Bound default/task-pv-claim
6m16s
kubectl get pvc
NAME STATUS VOLUME
CAPACITY ACCESS MODES STORAGECLASS AGE
task-pv-claim Bound task-pv-volume
5Gi RWO 6s

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Question: 3

Create a redis pod named ''test-redis'' and exec into that pod and create a file named "test-file.txt" with the text 'This is called the test file' in the path /data/redis and open another tab and exec again with the same pod and verifies file exist in the same path.

Avim test-redis.yaml
apiVersion: v1
kind: Pod
metadata:
name: test-redis
spec:
containers:
- name: redis
image: redis
ports:
- containerPort: 6379
volumeMounts:
- mountPath: /data/redis
name: redis-storage
volumes:
- name: redis-storage
emptyDir: {}
kubectl apply -f redis-pod-vol.yaml
// first terminal
kubectl exec -it test-redis /bin/sh
cd /data/redis
echo 'This is called the test file' > file.txt
//open another tab
kubectl exec -it test-redis /bin/sh
cat /data/redis/file.txt

Bvim test-redis.yaml
apiVersion: v1
kind: Pod
metadata:
name: test-redis
spec:
containers:
- name: redis
image: redis
ports:
- containerPort: 6379
volumeMounts:
- mountPath: /data/redis
name: redis-storage
volumes:
kubectl exec -it test-redis /bin/sh
cd /data/redis
echo 'This is called the test file' > file.txt
//open another tab
kubectl exec -it test-redis /bin/sh
cat /data/redis/file.txt

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Question: 4

Create PersistentVolume named task-pv-volume with storage 10Gi, access modes ReadWriteMany, storageClassName manual, and volume at /mnt/data and Create a PersistentVolumeClaim of at least 3Gi storage and access mode ReadWriteOnce and verify

Avim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: manual
capacity:
storage: 10Gi
accessModes:
- ReadWriteMany
hostPath:
path: '/mnt/data'
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
vim task-pvc-volume.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: task-pv-claim
spec:
storageClassName: manual
accessModes:
- ReadWriteMany
resources:
requests:
storage: 3Gi
kubectl apply -f task-pvc-volume.yaml
//Verify
Kuk kubectl get pvc

Bvim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: manual
capacity:
storage: 10Gi
accessModes:
- ReadWriteMany
hostPath:
path: '/mnt/data'
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
vim task-pvc-volume.yaml
apiVersion: v1
- ReadWriteMany
resources:
requests:
storage: 3Gi
kubectl apply -f task-pvc-volume.yaml
//Verify
Kuk kubectl get pvc

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Question: 5

Create an nginx pod with containerPort 80 and with a PersistentVolumeClaim "task-pv-claim" and has a mouth path "/usr/share/nginx/html"

Avim nginx-pvc-pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: task-pv-pod
spec:
volumes:
- name: task-pv-storage
persistentVolumeClaim:
claimName: task-pv-claim
containers:
- name: task-pv-container
image: nginx
ports:
- containerPort: 60
name: 'http'
volumeMounts:
- mountPath: '/usr/share/nginx/html'
name: task-pv-storage
kubectl apply -f nginx-pvc-pod.yaml
// Verify
kubectl describe po ''POD-Name'' | grep -i volumes --A4
Volumes:
task-pv-storage:
Type: PersistentVolumeClaim (a reference to a
PersistentVolumeClaim in the same namespace)
ClaimName: task-pv-claim
ReadOnly: false

Bvim nginx-pvc-pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: task-pv-pod
spec:
volumes:
- name: task-pv-storage
persistentVolumeClaim:
claimName: task-pv-claim
containers:
- name: task-pv-container
image: nginx
ports:
- containerPort: 80
name: 'http'
volumeMounts:
- mountPath: '/usr/share/nginx/html'
name: task-pv-storage
kubectl apply -f nginx-pvc-pod.yaml
// Verify
kubectl describe po ''POD-Name'' | grep -i volumes -A5
Volumes:
task-pv-storage:
Type: PersistentVolumeClaim (a reference to a
PersistentVolumeClaim in the same namespace)
ClaimName: task-pv-claim
ReadOnly: false

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Linux Foundation CKA Quiz:12 Topic:6 Questions:56-60