MockExam (1)

MOCK EXAMS, MOCK EXAM – 1

 

01. Deploy a pod named nginx-pod using the nginx:alpine image.

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• Name: nginx-pod
• Image: nginx:alpine

k run nginx-pod --image nginx:alpine

02. Deploy a messaging pod using the redis:alpine image with the labels set to tier=msg.

 

• Pod Name: messaging
• Image: redis:alpine
• Labels: tier=msg

k run messaging --image redis:alpine -l tier=msg

03. Create a namespace named apx-x9984574.

 

• Namespace: apx-x9984574

k create namespace apx-x9984574

 

04. Get the list of nodes in JSON format and store it in a file at /opt/outputs/nodes-z3444kd9.json.

 

 

• Task completed

k get node -o json > /opt/outputs/nodes-z3444kd9.json

05. Create a service messaging-service to expose the messaging application within the cluster on port 6379.

Use imperative commands.

 

• Service: messaging-service
• Port: 6379
• Type: ClusterIp
• Use the right labels

k expose pod messaging --port=6379 --name=messaging-service -l tier=msg

 

06. Create a deployment named hr-web-app using the image kodekloud/webapp-color with 2 replicas.

 

• Name: hr-web-app
• Image: kodekloud/webapp-color
• Replicas: 2

k create deployment hr-web-app --image=kodekloud/webapp-color --dry-run=client --replicas=2 -oyaml > 06.yaml


k create -f 06.yaml

 

07. Create a static pod named static-busybox on the controlplane node that uses the busybox image and the command sleep 1000.

 

• Name: static-busybox
• Image: busybox

apiVersion: v1
kind: Pod
metadata:
  name: static-busybox
spec:
  containers:
  - name: static-busybox
    image: busybox
    command: ['sh', '-c', 'sleep 1000']

 

08. Create a POD in the finance namespace named temp-bus with the image redis:alpine.

 

• Name: temp-bus
• Image Name: redis:alpine

apiVersion: v1
kind: Pod
metadata:
  name: temp-bus
  namespace: finance
spec:
  containers:
  - name: temp-bus
    image: redis:alpine

09. A new application orange is deployed. There is something wrong with it. Identify and fix the issue.

 

• Issue fixed

apiVersion: v1
kind: Pod
metadata:
  name: orange
spec:
  containers:
  - command:
    - sh
    - -c
    - echo The app is running! && sleep 3600
    image: busybox:1.28
    imagePullPolicy: IfNotPresent
    name: orange-container
  initContainers:
  - command:
    - sh
    - -c
    - sleep 2; # sleeeeep 으로 돼있었음
    image: busybox
    name: init-myservice
~

 

10. Expose the hr-web-app as service hr-web-app-service application on port 30082 on the nodes on the cluster.

The web application listens on port 8080.

 

• Name: hr-web-app-service
• Type: NodePort
• Endpoints: 2
• Port: 8080
• NodePort: 30082

apiVersion: v1
kind: Service
metadata:
  name: hr-web-app-service
spec:
  type: NodePort
  selector:
    app: hr-web-app
  ports:
      # By default and for convenience, the `targetPort` is set to the same value as the `port` field.
    - port: 8080
      targetPort: 8080
      # Optional field
      # By default and for convenience, the Kubernetes control plane will allocate a port from a range (default: 30000-32767)
      nodePort: 30082

kubectl expose deployment hr-web-app --type=NodePort --port=8080 \
--name=hr-web-app-service --dry-run=client -o yaml > hr-web-app-service.yaml

10. Use JSON PATH query to retrieve the osImages of all the nodes and store it in a file /opt/outputs/nodes_os_x43kj56.txt.

 

The osImages are under the nodeInfo section under status of each node.

k get nodes -o=jsonpath='{.items[*].status.nodeInfo}' > /opt/outputs/nodes_os_x43kj56.txt

11. Create a Persistent Volume with the given specification.

 

• Volume Name: pv-analytics
• Storage: 100Mi
• Access modes: ReadWriteMany
• Host Path: /pv/data-analytics

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-analytics
spec:
  capacity:
    storage: 100Mi
  accessModes:
    - ReadWriteMany
  hostPath:
    path: "/pv/data-analytics"