第 6 章 在 Grafana 中使用受管集群标签

启用受管集群标签，将其与 Grafana 仪表板搭配使用。当在 hub 集群中启用可观察性时，observability-managed-cluster-label-allowlist ConfigMap 会在 open-cluster-management-observability 命名空间中创建。ConfigMap 包含由 observabilty-rbac-query-proxy pod 维护的受管集群标签列表，用于在 ACM - Cluster Overview Grafana 仪表板中填充要过滤的标签名称列表。默认情况下，可观察性会忽略 observability-managed-cluster-label-allowlist ConfigMap 中的标签子集。

当集群导入到受管集群团队或修改时，observability-rbac-query-proxy pod 会监视对受管集群标签的任何更改，并自动更新 observability-managed-cluster-label-allowlist ConfigMap 以反映更改。ConfigMap 仅包含唯一的标签名称，这些名称包含在 ignore_labels 或 labels 列表中。您的 observability-managed-cluster-label-allowlist ConfigMap 可能类似以下 YAML 文件：

data:
  managed_cluster.yaml: |
    ignore_labels: 1
      - clusterID
      - cluster.open-cluster-management.io/clusterset
      - feature.open-cluster-management.io/addon-application-manager
      - feature.open-cluster-management.io/addon-cert-policy-controller
      - feature.open-cluster-management.io/addon-cluster-proxy
      - feature.open-cluster-management.io/addon-config-policy-controller
      - feature.open-cluster-management.io/addon-governance-policy-framework
      - feature.open-cluster-management.io/addon-iam-policy-controller
      - feature.open-cluster-management.io/addon-observability-controller
      - feature.open-cluster-management.io/addon-search-collector
      - feature.open-cluster-management.io/addon-work-manager
      - installer.name
      - installer.namespace
      - local-cluster
      - name
    labels: 2
      - cloud
      - vendor

+ <1> any label is the ConfigMap 的 ignore_labels keylist 中列出的标签已从 ACM - Clusters Overview Grafana 仪表板的下拉过滤器中删除。<2> 启用的标签会在 ACM - Clusters Overview Grafana 仪表板的下拉过滤器中显示。值来自 acm_managed_cluster_labels 指标，具体取决于所选 label 键值。

继续了解如何在 Grafana 中使用受管集群标签：

data:
  managed_cluster.yaml: |
    ignore_labels:
      - clusterID
      - cluster.open-cluster-management.io/clusterset
      - feature.open-cluster-management.io/addon-application-manager
      - feature.open-cluster-management.io/addon-cert-policy-controller
      - feature.open-cluster-management.io/addon-cluster-proxy
      - feature.open-cluster-management.io/addon-config-policy-controller
      - feature.open-cluster-management.io/addon-governance-policy-framework
      - feature.open-cluster-management.io/addon-iam-policy-controller
      - feature.open-cluster-management.io/addon-observability-controller
      - feature.open-cluster-management.io/addon-search-collector
      - feature.open-cluster-management.io/addon-work-manager
      - installer.name
      - installer.namespace
      - local-cluster
      - name
    labels:
      - cloud
      - department
      - vendor