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健康指标

Red Hat Advanced Cluster Management for Kubernetes 2.12

请参阅跨集群的健康指标和监控。

摘要

了解更多有关集群和组件的指标和监控的信息。

第 1 章 健康指标
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您可以使用指标来监控组件的健康状况。

请参阅以下文档：

1.1. 使用 metrics 服务
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您可以使用 metrics (指标) 来监控 Red Hat Advanced Cluster Management for Kubernetes 中的组件健康状况。在 Metrics chronicle 概述中记录了许多自定义指标。

1.1.1. 访问 hub 集群指标服务
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要查看收集的指标，您必须在 hub 集群上公开 metrics 服务。如果您的指标已在 Grafana 仪表板中公开，这个过程是可选的。

在 OpenShift Container Platform 控制台中查找 metrics 服务。点 Observe > Metrics。

如果您没有在 Grafana 仪表板、Grafana Explorer 或 OpenShift Container Platform 控制台中看到指标，则 Prometheus 可能无法配置为提取指标。继续使用 Scrapping with Prometheus 来公开您的指标。

1.1.2. Scraping with Prometheus
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您可以使用 Prometheus 来公开从产品控制台公开的指标。请参阅 hub 和受管集群指标的步骤。

1.1.2.1. 提取 hub 集群
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请参阅以下流程来公开 hub 集群的指标。这些文件位于 openshift-monitoring 命名空间中：

  1. 创建用于收集服务和公开指标的 ServiceMonitor。请参阅以下 YAML 示例： 

    apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: hub-subscription-metrics
  namespace: openshift-monitoring
spec:
  endpoints:
  - port: metrics
  namespaceSelector:
    matchNames:
    - open-cluster-management
  selector:
    matchLabels:
      app: hub-subscription-metrics
    Copy to Clipboard Toggle word wrap

  2. 运行以下命令以应用该文件： 

    oc apply -f
    Copy to Clipboard Toggle word wrap

  3. 创建用于设置监控权限的角色。请参阅以下 YAML 文件： 

    apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: prometheus-k8s-monitoring
  namespace: open-cluster-management
rules:
- apiGroups:
  - ""
  resources:
  - services
  - endpoints
  - pods
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - extensions
  resources:
  - ingresses
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - networking.k8s.io
  resources:
  - ingresses
  verbs:
  - get
  - list
  - watch
    Copy to Clipboard Toggle word wrap

  4. 运行以下命令以应用该文件： 

    oc apply -f
    Copy to Clipboard Toggle word wrap

  5. 创建一个 RoleBinding，将角色绑定绑定到 Prometheus monitoring ServiceAccount，如下例所示： 

    apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: prometheus-k8s-monitoring-binding
  namespace: open-cluster-management
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: prometheus-k8s-monitoring
subjects:
- kind: ServiceAccount
  name: prometheus-k8s
  namespace: monitoring
    Copy to Clipboard Toggle word wrap

  6. 运行以下命令以应用该文件： 

    oc apply -f
    Copy to Clipboard Toggle word wrap

  7. 要验证，请在仪表板中运行以下查询以查找 Subscription Operator Metrics Service 报告的指标： 

    {service="hub-subscription-metrics"}
    Copy to Clipboard Toggle word wrap
1.1.2.2. 提取受管集群
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请参阅以下步骤为受管集群公开指标。这些文件位于 openshift-monitoring 命名空间中：

  1. 创建 ServiceMonitor 以收集服务公开指标。请参阅以下 YAML 文件示例： 

    apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: mc-subscription-metrics
  namespace: openshift-monitoring
spec:
  endpoints:
  - port: metrics
  namespaceSelector:
    matchNames:
    - open-cluster-management-agent-addon
  selector:
    matchLabels:
      app: mc-subscription-metrics
    Copy to Clipboard Toggle word wrap

  2. 运行以下命令以应用您的文件： 

    oc apply -f
    Copy to Clipboard Toggle word wrap

  3. 创建用于设置监控权限的角色。请参阅以下 YAML 文件示例： 

    apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: prometheus-k8s-monitoring
  namespace: open-cluster-management-agent-addon
rules:
- apiGroups:
  - ""
  resources:
  - services
  - endpoints
  - pods
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - extensions
  resources:
  - ingresses
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - networking.k8s.io
  resources:
  - ingresses
  verbs:
  - get
  - list
  - watch
    Copy to Clipboard Toggle word wrap

  4. 运行以下命令以应用该文件： 

    oc apply -f
    Copy to Clipboard Toggle word wrap

  5. 创建一个 RoleBinding，将 Role 绑定到 Prometheus monitoring ServiceAccount ： 

    apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: prometheus-k8s-monitoring-binding
  namespace: open-cluster-management-agent-addon
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: prometheus-k8s-monitoring
subjects:
- kind: ServiceAccount
  name: prometheus-k8s
  namespace: monitoring
    Copy to Clipboard Toggle word wrap

  6. 运行以下命令以应用该文件： 

    oc apply -f
    Copy to Clipboard Toggle word wrap

  7. 运行以下查询来查找 Subscription Operator Metrics Service 报告的指标，在 Prometheus 仪表板中验证： 

    {service="mc-subscription-metrics"}
    Copy to Clipboard Toggle word wrap

1.1.3. 提取独立集群
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  1. 创建 ServiceMonitor 以收集服务公开指标： 

    apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: standalone-subscription-metrics
  namespace: openshift-monitoring
spec:
  endpoints:
  - port: metrics
  namespaceSelector:
    matchNames:
    - open-cluster-management
  selector:
    matchLabels:
      app: standalone-subscription-metrics
    Copy to Clipboard Toggle word wrap

  2. 创建用于设置监控权限的角色: 

    oc apply -f
    Copy to Clipboard Toggle word wrap 
    apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: prometheus-k8s-monitoring
  namespace: open-cluster-management
rules:
- apiGroups:
  - ""
  resources:
  - services
  - endpoints
  - pods
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - extensions
  resources:
  - ingresses
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - networking.k8s.io
  resources:
  - ingresses
  verbs:
  - get
  - list
  - watch
    Copy to Clipboard Toggle word wrap

  3. 创建一个 RoleBinding，将 Role 绑定到 Prometheus monitoring ServiceAccount。请参阅以下 YAML 文件示例： 

    apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: prometheus-k8s-monitoring-binding
  namespace: open-cluster-management
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: prometheus-k8s-monitoring
subjects:
- kind: ServiceAccount
  name: prometheus-k8s
  namespace: monitoring
    Copy to Clipboard Toggle word wrap

  4. 运行以下命令以应用该文件： 

    oc apply -f
    Copy to Clipboard Toggle word wrap

  5. 运行以下查询来查找 Subscription Operator Metrics Service 报告的指标，在 Prometheus 仪表板中验证： 

    {service="standalone-subscription-metrics"}
    Copy to Clipboard Toggle word wrap

法律通告
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