my_proj/job-lab.txt at master · amitopenwriteup/my_proj · GitHub

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#Create a yaml file job.yaml
apiVersion: batch/v1
kind: Job
metadata:
  name: node-app-job
spec:
  completions: 7
  template:
    spec:
      containers:
      - name: node-app-job
        image: alpine
        command: ["echo", "Welcome to my Node app"]
      restartPolicy: Never


kubectl create -f job.yaml
kubectl get job node-app-job -w
kubectl describe job node-app-job
kubectl delete -f job.yaml

#create job1.yaml

#Add parallelism

apiVersion: batch/v1
kind: Job
metadata:
  name: node-app-job
spec:
  completions: 7
  parallelism: 2
  template:
    spec:
      containers:
      - name: node-app-job
        image: alpine
        command: ["echo", "Welcome to my Node app"]
      restartPolicy: Never

kubectl create -f job1.yaml
kubectl get job node-app-job -w
kubectl describe job node-app-job
kubectl delete -f job1.yaml

#create job2.yaml using vi

apiVersion: batch/v1
kind: Job
metadata:
  name: node-app-job
spec:
  parallelism: 2
  template:
    spec:
      containers:
      - name: node-app-job
        image: alpine
        command: ["echo", "Welcome to my Node app"]
      restartPolicy: Never

kubectl create -f job2.yaml
kubectl get job node-app-job -w
kubectl describe job node-app-job
kubectl delete -f job2.yaml

exercise: increase the number parallelism > completion check the value

kubectl create -f job.yaml
kubectl get job node-app-job -w
kubectl describe job node-app-job
kubectl delete -f job.yaml