红帽全球峰会健康指标
第 1 章 健康指标
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
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
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
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
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：
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运行以下命令以应用该文件：
oc apply -f
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
运行以下命令以应用该文件：
oc apply -f
创建一个
RoleBinding，将角色绑定绑定到 Prometheus monitoringServiceAccount，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
运行以下命令以应用该文件：
oc apply -f
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"}
1.1.2.2. 提取受管集群
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：
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运行以下命令以应用您的文件：
oc apply -f
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
运行以下命令以应用该文件：
oc apply -f
创建一个
RoleBinding，将Role绑定到 Prometheus monitoringServiceAccount：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
运行以下命令以应用该文件：
oc apply -f
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"}
1.1.3. 提取独立集群
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创建用于设置监控权限的
角色:oc apply -f
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
创建一个
RoleBinding，将Role绑定到 Prometheus monitoringServiceAccount。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
运行以下命令以应用该文件：
oc apply -f
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"}
