Exercise 6.3: Working with Jobs

  1. CP 노드에 연결된 터미널로 이동

  2. Job 생성 

    cat <<EOF | kubectl create -f -
apiVersion: batch/v1
kind: Job
metadata:
  name: sleepy
spec:
  template:
    spec:
      containers:
      - name: resting
        image: busybox
        command: ["/bin/sleep"]
        args: ["3"]
      restartPolicy: Never
EOF

  3. 생성된 Job 상태 확인 

    kubectl get job sleepy

  4. 생성된 Job의 상세 내용 확인

    kubectl describe job sleepy

  5. 생성된 Job의 Manifest를 YAML 형식으로 출력

    kubectl get job sleepy -o yaml | grep -A 5 -B 1 ^spec

  6. Job 삭제 

    kubectl delete job sleepy

  7. Job 생성 

    cat <<EOF | kubectl create -f -
apiVersion: batch/v1
kind: Job
metadata:
  name: sleepy
spec:
  completions: 5
  template:
    spec:
      containers:
      - name: resting
        image: busybox
        command: ["/bin/sleep"]
        args: ["3"]
      restartPolicy: Never
EOF

  8. 생성된 Job 및 Pod 상태 확인 

    kubectl get job,pod -l job-name=sleepy

  9. Job 삭제 

    kubectl delete job sleepy

  10. Job 생성 

    cat <<EOF | kubectl create -f -
apiVersion: batch/v1
kind: Job
metadata:
  name: sleepy
spec:
  completions: 5
  parallelism: 2
  template:
    spec:
      containers:
      - name: resting
        image: busybox
        command: ["/bin/sleep"]
        args: ["3"]
      restartPolicy: Never
EOF

  11. 생성된 Job 및 Pod 상태 확인 

    kubectl get job,pod -l job-name=sleepy

  12. Job 삭제 

    kubectl delete job sleepy

  13. Job 생성 

    cat <<EOF | kubectl create -f -
apiVersion: batch/v1
kind: Job
metadata:
  name: sleepy
spec:
  completions: 5
  parallelism: 2
  activeDeadlineSeconds: 15
  template:
    spec:
      containers:
      - name: resting
        image: busybox
        command: ["/bin/sleep"]
        args: ["5"]
      restartPolicy: Never
EOF

  14. 생성된 Job 상태 확인 

    kubectl get job sleepy

  15. 생성된 Job의 status.conditions 확인 

    kubectl get job sleepy -ojsonpath='{.status.conditions}' | jq

  16. Job 삭제 

    kubectl delete job sleepy

  17. CronJob 생성 

    cat <<EOF | kubectl create -f -
apiVersion: batch/v1
kind: CronJob
metadata:
  name: sleepy
spec:
  schedule: "*/1 * * * *"
  jobTemplate:
    spec:
      template:
        spec:          
          containers:
          - name: resting
            image: busybox
            command: ["/bin/sleep"]
            args: ["5"]
          restartPolicy: Never
EOF

  18. 생성된 CronJob 상태 확인 

    kubectl get cronjob sleepy

  19. Job 목록 확인 

    kubectl get job

  20. Pod 목록 확인 

    kubectl get pod

  21. CronJob 삭제 

    kubectl delete cronjob sleepy

  22. CronJob 생성 

    cat <<EOF | kubectl create -f -
apiVersion: batch/v1
kind: CronJob
metadata:
  name: sleepy
spec:
  schedule: "*/1 * * * *"
  jobTemplate:
    spec:
      template:
        spec:
          activeDeadlineSeconds: 10          
          containers:
          - name: resting
            image: busybox
            command: ["/bin/sleep"]
            args: ["30"]
          restartPolicy: Never
EOF

  23. 생성된 CronJob 상태 확인 

    kubectl get cronjob sleepy

  24. Job 목록 확인 

    kubectl get job

  25. CronJob 삭제 

    kubectl delete cronjob sleepy

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