02-Mock-Exam-1.md

Mock Exam 1

Test My Knowledge, Take me to Mock Exam 1

Solution to the Mock Exam 1

1. Apply below manifests:

   apiVersion: v1
   kind: Pod
   metadata:
     creationTimestamp: null
     labels:
       run: nginx-pod
     name: nginx-pod
   spec:
     containers:
     - image: nginx:alpine
       name: nginx-pod
       resources: {}
     dnsPolicy: ClusterFirst
     restartPolicy: Always
   status: {}
   

2. Run below command which create a pod with labels:

   kubectl run messaging --image=redis:alpine --labels=tier=msg
   

3. Run below command to create a namespace:

   kubectl create namespace apx-x9984574
   

4. Use the below command which will redirect the o/p:

   kubectl get nodes -o json > /opt/outputs/nodes-z3444kd9.json
   

5. Execute below command which will expose the pod on port 6379:

   kubectl expose pod messaging --port=6379 --name messaging-service
   

6. Apply below manifests:

   apiVersion: apps/v1
   kind: Deployment
   metadata:
     creationTimestamp: null
     labels:
       app: hr-web-app
     name: hr-web-app
   spec:
     replicas: 2
     selector:
       matchLabels:
         app: hr-web-app
     strategy: {}
     template:
       metadata:
         creationTimestamp: null
         labels:
           app: hr-web-app
       spec:
         containers:
         - image: kodekloud/webapp-color
           name: webapp-color
           resources: {}
   status: {}
   

   In v1.19, we can add --replicas flag with kubectl create deployment command:

   kubectl create deployment hr-web-app --image=kodekloud/webapp-color --replicas=2
   

7. To Create a static pod, copy it to the static pods directory. In this case, it is /etc/kubernetes/manifests. Apply below manifests:

   apiVersion: v1
   kind: Pod
   metadata:
     creationTimestamp: null
     labels:
       run: static-busybox
     name: static-busybox
   spec:
     containers:
     - command:
       - sleep
       - "1000"
       image: busybox
       name: static-busybox
       resources: {}
     dnsPolicy: ClusterFirst
     restartPolicy: Always
   status: {}
   

8. Run below command to create a pod in namespace finance:

   kubectl run temp-bus --image=redis:alpine -n finance
   

9. Run below command and troubleshoot step by step:

   kubectl describe pod orange
   

   Export the running pod using below command and correct the spelling of the command sleeeep to sleep

   kubectl get pod orange -o yaml > orange.yaml
   

   Delete the running Orange pod and recreate the pod using command.

   kubectl delete pod orange
   kubectl create -f orange.yaml
   

10. Apply below manifests:

    apiVersion: v1
    kind: Service
    metadata:
      creationTimestamp: null
      labels:
        app: hr-web-app
      name: hr-web-app-service
    spec:
      ports:
      - port: 8080
        protocol: TCP
        targetPort: 8080
        nodePort: 30082
      selector:
        app: hr-web-app
      type: NodePort
    status:
      loadBalancer: {}
    

11. Run the below command to redirect the o/p:

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

12. Apply the below manifest to create a PV:

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