kubernetes 在每次helm安装时重新创建作业或删除旧作业

63lcw9qa  于 2023-03-12  发布在  Kubernetes
关注(0)|答案(1)|浏览(174)

我创建了Kubernetes作业,作业已创建,但在部署到Kubernetes集群时失败。当我尝试使用Helm重新部署作业时,作业未重新部署(删除旧作业并重新创建新作业,这与微服务部署不同)。
我怎样才能在不手动删除Kubernetes的情况下完成这个重新部署作业?我可以告诉它重新创建容器吗?
job.yaml包含:

apiVersion: batch/v1
kind: Job
metadata:
  name: "{{ .Release.Name }}-init-job"
  namespace: {{ .Release.Namespace }}
spec:
  template:
    metadata:
      annotations:
        linkerd.io/inject: disabled
        "helm.sh/hook-delete-policy": before-hook-creation
        "helm.sh/hook": pre-install,pre-upgrade,pre-delete
        "helm.sh/hook-weight": "-5"
    spec:
      serviceAccountName: {{ .Release.Name }}-init-service-account
      containers:
        - name: app-installer
          image: some image
          command:
            - /bin/bash
            - -c
            - echo Hello executing k8s init-container
          securityContext:
            readOnlyRootFilesystem: true
      restartPolicy: OnFailure

未重新部署作业

kubectl get jobs -n namespace

NAME                    COMPLETIONS   DURATION   AGE
test-init-job   0/1           13h        13h

kubectl描述作业测试-初始化-作业-n测试

Name:           test-init-job
Namespace:      test
Selector:       controller-uid=86370470-0964-42d5-a9c1-00c8a462239f
Labels:         app.kubernetes.io/managed-by=Helm
Annotations:    meta.helm.sh/release-name: test
                meta.helm.sh/release-namespace: test
Parallelism:    1
Completions:    1
Start Time:     Fri, 14 Oct 2022 18:03:31 +0530
Pods Statuses:  0 Running / 0 Succeeded / 1 Failed
Pod Template:
  Labels:           controller-uid=86370470-0964-42d5-a9c1-00c8a462239f
                    job-name=test-init-job
  Annotations:      helm.sh/hook: pre-install,pre-upgrade
                    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
                    helm.sh/hook-weight: -5
                    linkerd.io/inject: disabled
  Service Account:  test-init-service-account
  Containers:
   test-app-installer:
    Image:      artifactory/test-init-container:1.0.0
    Port:       <none>
    Host Port:  <none>
    Environment:
      test.baseUrl:         baser
      test.authType:        basic
      test.basic.username:  jack
      test.basic.password:  password
    Mounts:
      /etc/test/config from test-installer-config-vol (ro)
  Volumes:
   test-installer-config-vol:
    Type:      ConfigMap (a volume populated by a ConfigMap)
    Name:      test-installer-config-files
    Optional:  false
Events:        <none>
nzkunb0c

nzkunb0c1#

无法重新部署作业,因为其模板不可变。
如果您收到消息cannot patch "..." with kind Job: Job.batch "db-sync-download-snapshot" is invalid: spec.template: Invalid value: ... field is immutable,这就是原因。
只需删除一个作业,或创建一个名称后附加$VERSION的作业。
在GitOps中,$VERSION应该是$CI_COMMIT_HASH
替换Helm模板中的name

metadata:
    name: "{{ .Release.Name }}-init-job-{{ .Release.revision }}"

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