> For the complete documentation index, see [llms.txt](https://kubernetes.youngwjung.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kubernetes.youngwjung.com/core-concepts/job/lab.md).

# 실습

### Job

1. 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
   ```
2. 생성된 Job 상태 확인&#x20;

   ```
   kubectl get job sleepy
   ```
3. Job에 발생한 Event 확인

   ```
   kubectl describe job sleepy
   ```
4. 생성된 Pod 확인

   ```
   kubectl get pod -l job-name=sleepy
   ```
5. 생성된 Job의 Manifest를 YAML 형식으로 출력&#x20;

   ```
   kubectl get job sleepy -o yaml | grep -A 14 -B 1 ^spec
   ```
6. Job 삭제&#x20;

   ```
   kubectl delete job sleepy
   ```
7. Job 생성&#x20;

   ```
   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 상태 확인&#x20;

   ```
   kubectl get job sleepy
   ```
9. 생성된 Pod 확인

   ```
   kubectl get pod -l job-name=sleepy
   ```
10. Job 삭제&#x20;

    ```
    kubectl delete job sleepy
    ```
11. Job 생성&#x20;

    ```
    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
    ```
12. 생성된 Job 상태 확인&#x20;

    ```
    kubectl get job sleepy
    ```
13. 생성된 Pod 확인

    ```
    kubectl get pod -l job-name=sleepy
    ```
14. Job 삭제&#x20;

    ```
    kubectl delete job sleepy
    ```
15. Job 생성&#x20;

    ```
    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
    ```
16. 생성된 Job 상태 확인&#x20;

    ```
    kubectl get job sleepy
    ```
17. 생성된 Pod 확인

    ```
    kubectl get pod -l job-name=sleepy
    ```
18. Job에 발생한 Event 확인

    ```
    kubectl describe job sleepy
    ```
19. Job 삭제&#x20;

    ```
    kubectl delete job sleepy
    ```

### CronJob

1. CronJob 생성&#x20;

   ```
   cat <<EOF | kubectl create -f -
   apiVersion: batch/v1beta1
   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
   ```
2. 생성된 CronJob 상태 확인&#x20;

   ```
   kubectl get cronjob sleepy
   ```
3. Job 목록 확인&#x20;

   ```
   kubectl get job
   ```
4. Pod 목록 확인&#x20;

   ```
   kubectl get pod -l job-name
   ```
5. CronJob 삭제 &#x20;

   ```
   kubectl delete cronjob sleepy
   ```
6. CronJob 생성&#x20;

   ```
   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
   ```
7. 생성된 CronJob 상태 확인&#x20;

   ```
   kubectl get cronjob sleepy
   ```
8. Job 목록 확인&#x20;

   ```
   kubectl get job
   ```
9. Pod 목록 확인&#x20;

   ```
   kubectl get pod -l job-name
   ```
10. CronJob 삭제&#x20;

    ```
    kubectl delete cronjob sleepy
    ```