为什么普罗米修斯操作员无法启动 [英] Why is prometheus operator not able to start

问题描述

我正在尝试用运算符在全新的新k8s集群中创建普罗米修斯 我使用以下文件，

I'm trying to create prometheus with operator in fresh new k8s cluster I use the following files ,

1. 我正在创建名称空间监视
2. 应用此文件，该文件可以正常工作

apiVersion: apps/v1beta2
kind: Deployment
metadata:
  labels:
    k8s-app: prometheus-operator
  name: prometheus-operator
  namespace: monitoring
spec:
  replicas: 2
  selector:
    matchLabels:
      k8s-app: prometheus-operator
  template:
    metadata:
      labels:
        k8s-app: prometheus-operator
    spec:
      priorityClassName: "operator-critical"
      tolerations:
      - key: "WorkGroup"
        operator: "Equal"
        value: "operator"
        effect: "NoSchedule"
      - key: "WorkGroup"
        operator: "Equal"
        value: "operator"
        effect: "NoExecute"
      containers:
      - args:
        - --kubelet-service=kube-system/kubelet
        - --logtostderr=true
        - --config-reloader-image=quay.io/coreos/configmap-reload:v0.0.1
        - --prometheus-config-reloader=quay.io/coreos/prometheus-config-reloader:v0.29.0
        image: quay.io/coreos/prometheus-operator:v0.29.0
        name: prometheus-operator
        ports:
        - containerPort: 8080
          name: http
        securityContext:
          allowPrivilegeEscalation: false
          readOnlyRootFilesystem: true
      nodeSelector:
      serviceAccountName: prometheus-operator

现在我要应用此文件(CRD)

Now I want to apply this file (CRD)

apiVersion: monitoring.coreos.com/v1
kind: Prometheus
metadata:
  name: prometheus
  namespace: monitoring
  labels: 
    prometheus: prometheus
spec:
  replica: 1
  priorityClassName: "operator-critical"
  serviceAccountName: prometheus
  nodeSelector:
        worker.garden.sapcloud.io/group: operator
  serviceMonitorNamespaceSelector: {}
  serviceMonitorSelector:
    matchLabels:
      role: observeable
  tolerations:
  - key: "WorkGroup"
    operator: "Equal"
    value: "operator"
    effect: "NoSchedule"
  - key: "WorkGroup"
    operator: "Equal"
    value: "operator"
    effect: "NoExecute"

在创建这些CRD之前

https://github.com/coreos /prometheus-operator/tree/master/example/prometheus-operator-crd

吊舱无法启动的问题(0/2)，请参见下图.可能是什么问题呢?请指教

The problem that the pods didn't able to start (0/2), see the picture below. What could be the problem? please advice

更新

当我去参加舞会的时候，我看到以下错误creating: pods "prometheus-operator-6944778645-" is forbidden: no PriorityClass with name operator-critical was found replicaset-controller，你知道吗?

when I go to the event of the prom operator I see the following Error creating: pods "prometheus-operator-6944778645-" is forbidden: no PriorityClass with name operator-critical was found replicaset-controller , any idea ?

推荐答案

您正在尝试引用operator-critical

You are trying to reference the operator-critical priority class. Priority classes determine the priority of pods and their resource assignment.

要解决此问题，您可以删除两个文件中的显式优先级类(priorityClassName: "operator-critical")或创建operator-critical类:

To fix this issue you could either remove the explicit priority class(priorityClassName: "operator-critical") in both files or create the operator-critical class:

apiVersion: scheduling.k8s.io/v1beta1
kind: PriorityClass
metadata:
  name: operator-critical
value: 1000000
globalDefault: false
description: "Critical operator workloads"

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