Kubernetes Deployment file error: Found invalid field selector for v1.PodSpec

Question

当我尝试使用 YAML 文件创建我的部署时，我遇到了一个无效的字段选择器错误。错误是error validating data: found invalid field selector for v1.PodSpec，我的文件可以在下面看到。

apiVersion: apps/v1beta1
kind: Deployment
metadata:
 name: zalenium-deployment
spec:
 replicas: 1
 template:
  metadata:
   labels:
    app: zalenium
  spec:
   serviceAccountName: zalenium
   serviceAccount: zalenium
   selector:
    app: zalenium
    role: grid
   containers:
    - name: zalenium-pod
      image: dosel/zalenium
      ports:
      - containerPort: 4444
        protocol: TCP
      volumeMounts:
      - name: zalenium-shared
        mountPath: /tmp/mounted
      - name: zalenium-videos
        mountPath: /home/seluser/videos
      resources:
       requests:
        memory: "250m"
        cpu: "500m"
       limits:
        memory: "1Gi"
   volumes:
   - name: zalenium-shared
     persistentVolumeClaim:
      claimName: zalenium-shared-claim
   - name: zalenium-videos
     persistentVolumeClaim:
      claimName: zalenium-videos-claim

我试过使用在线 YAML 文件验证器，它们似乎没有显示格式有任何问题。当我尝试使用 validate=false 标志创建上面的部署时，部署运行，但随后 pods 不断崩溃并重新启动 (crashLoopBackOff)。我应该调查什么？我仍然对 k8s 很熟悉，但从错误来看，我认为它与我部署中的容器规范有关。关于接近这个的任何提示？谢谢！

Answer 1

由于错误消息指出选择器是 v1.PodSpec 的 invalid field - 因此此字段在 .spec.template.spec.selector 处无效。我想你要找的是 .spec.selector。

话虽如此，文档指出：

If specified, .spec.selector must match .spec.template.metadata.labels, or it will be rejected by the API.

因此您还必须将 role: grid 添加到您的元数据标签（在 .spec.template.metadata.labels 处）。你的 .yaml 文件看起来像这样：

apiVersion: apps/v1beta1
kind: Deployment
metadata:
 name: zalenium-deployment
spec:
 selector:
  matchLabels:
   app: zalenium
   role: grid
 replicas: 1
 template:
  metadata:
   labels:
    app: zalenium
    role: grid
  spec:
   serviceAccountName: zalenium
   serviceAccount: zalenium
   containers:
    - name: zalenium-pod
      image: dosel/zalenium
      ports:
      - containerPort: 4444
        protocol: TCP
      volumeMounts:
      - name: zalenium-shared
        mountPath: /tmp/mounted
      - name: zalenium-videos
        mountPath: /home/seluser/videos
      resources:
       requests:
        memory: "250m"
        cpu: "500m"
       limits:
        memory: "1Gi"
   volumes:
   - name: zalenium-shared
     persistentVolumeClaim:
      claimName: zalenium-shared-claim
   - name: zalenium-videos
     persistentVolumeClaim:
      claimName: zalenium-videos-claim

Kubernetes Deployment file error: Found invalid field selector for v1.PodSpec

Kubernetes Deployment file error: Found invalid field selector for v1.PodSpec

yaml

selenium-grid

docker

kubernetes

kubectl