CKA Exam Dumps : Certified Kubernetes Administrator (CKA) Program

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

kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml > nginx-pod.yaml

kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml | kubectl create -n engineering -f –

YAML File:

apiVersion: v1

kind: Pod

metadata:

name: nginx

namespace: engineering

labels:

env: test

spec:

containers:

- name: nginx

image: nginx

imagePullPolicy: IfNotPresent

restartPolicy: Never

kubectl create -f nginx-pod.yaml

Solution:

#

kubectl get pod big-corp-app -o yaml

#

apiVersion: v1

kind: Pod

metadata:

name: big-corp-app

spec:

containers:

- name: big-corp-app

image: busybox

args:

- /bin/sh

- -c

- >

i=0;

while true;

do

echo "$(date) INFO $i" >> /var/log/big-corp-app.log;

i=$((i+1));

sleep 1;

done

volumeMounts:

- name: logs

mountPath: /var/log

- name: count-log-1

image: busybox

args: [/bin/sh, -c, 'tail -n+1 -f /var/log/big-corp-app.log']

volumeMounts:

- name: logs

mountPath: /var/log

volumes:

- name: logs

emptyDir: {

}

#

kubectl logs big-corp-app -c count-log-1