CKA Linux Foundation Exam Lab Questions

kubectl get po nginx -o

jsonpath='{.spec.containers[].image}{"\n"}'

kubectl run --generator=run-pod/v1 --image=nginx -- labels=env=prod nginx-prod --dry-run -o yaml > nginx-prodpod.yaml Now, edit nginx-prod-pod.yaml file and remove entries like “creationTimestamp: null” “dnsPolicy: ClusterFirst”

vim nginx-prod-pod.yaml

apiVersion: v1

kind: Pod

metadata:

labels:

env: prod

name: nginx-prod

spec:

containers:

- image: nginx

name: nginx-prod

restartPolicy: Always

# kubectl create -f nginx-prod-pod.yaml

kubectl run --generator=run-pod/v1 --image=nginx --

labels=env=dev nginx-dev --dry-run -o yaml > nginx-dev-pod.yaml

apiVersion: v1

kind: Pod

metadata:

labels:

env: dev

name: nginx-dev

spec:

containers:

- image: nginx

name: nginx-dev

restartPolicy: Always

# kubectl create -f nginx-prod-dev.yaml

Verify :

kubectl get po --show-labels

kubectl get po -l env=prod

kubectl get po -l env=dev

Solution:

#network.yaml

apiVersion: networking.k8s.io/v1

kind: NetworkPolicy

metadata:

name: allow-port-from-namespace

namespace: internal

spec:

podSelector:

matchLabels: {

}

policyTypes:

- Ingress

ingress:

- from:

- podSelector: {

}

ports:

- protocol: TCP

port: 8080

#spec.podSelector namespace pod

kubectl create -f network.yaml

solution

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