4.2.2. 节点选择器
您可以在特定节点集合上运行 metering 组件。在 metering 组件上设置 nodeSelector 来控制组件的调度位置。以下 node-selectors.yaml 文件提供了一个针对各个组件设置节点选择器的示例。
为 operand Pod 配置特定节点选择器前，将 openshift.io/node-selector: "" 命名空间注解添加到 metering 命名空间 YAML 文件。将 "" 指定为注解值。
apiVersion: metering.openshift.io/v1
kind: MeteringConfig
metadata:
name: "operator-metering"
spec:
reporting-operator:
spec:
nodeSelector:
"node-role.kubernetes.io/infra": "" 1
presto:
spec:
coordinator:
nodeSelector:
"node-role.kubernetes.io/infra": "" 2
worker:
nodeSelector:
"node-role.kubernetes.io/infra": "" 3
hive:
spec:
metastore:
nodeSelector:
"node-role.kubernetes.io/infra": "" 4
server:
nodeSelector:
"node-role.kubernetes.io/infra": "" 5
为 operand Pod 配置特定节点选择器前，将 openshift.io/node-selector: "" 命名空间注解添加到 metering 命名空间 YAML 文件。在项目上设置 openshift.io/node-selector 注解时，该值优先于集群范围的 Scheduler 对象中的 spec.defaultNodeSelector 字段的值。
验证
您可以通过执行以下任一检查来验证 metering 节点选择器：
验证
MeteringConfig自定义资源中配置的节点的 IP 地址是否正确调度了 metering 的所有 pod：检查
openshift-metering命名空间中的所有 pod:$ oc --namespace openshift-metering get pods -o wide
输出显示了在
openshift-metering命名空间中运行的每个 Pod 的NODE和对应IP。输出示例
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES hive-metastore-0 1/2 Running 0 4m33s 10.129.2.26 ip-10-0-210-167.us-east-2.compute.internal <none> <none> hive-server-0 2/3 Running 0 4m21s 10.128.2.26 ip-10-0-150-175.us-east-2.compute.internal <none> <none> metering-operator-964b4fb55-4p699 2/2 Running 0 7h30m 10.131.0.33 ip-10-0-189-6.us-east-2.compute.internal <none> <none> nfs-server 1/1 Running 0 7h30m 10.129.2.24 ip-10-0-210-167.us-east-2.compute.internal <none> <none> presto-coordinator-0 2/2 Running 0 4m8s 10.131.0.35 ip-10-0-189-6.us-east-2.compute.internal <none> <none> reporting-operator-869b854c78-8g2x5 1/2 Running 0 7h27m 10.128.2.25 ip-10-0-150-175.us-east-2.compute.internal <none> <none>
将
openshift-metering命名空间中的节点与集群中的每个节点NAME进行比较：$ oc get nodes
输出示例
NAME STATUS ROLES AGE VERSION ip-10-0-147-106.us-east-2.compute.internal Ready master 14h v1.19.0+6025c28 ip-10-0-150-175.us-east-2.compute.internal Ready worker 14h v1.19.0+6025c28 ip-10-0-175-23.us-east-2.compute.internal Ready master 14h v1.19.0+6025c28 ip-10-0-189-6.us-east-2.compute.internal Ready worker 14h v1.19.0+6025c28 ip-10-0-205-158.us-east-2.compute.internal Ready master 14h v1.19.0+6025c28 ip-10-0-210-167.us-east-2.compute.internal Ready worker 14h v1.19.0+6025c28
验证
MeteringConfig自定义资源中节点选择器配置不会影响集群范围节点选择器配置，因此没有调度 metering operand Pod。检查集群范围的
Scheduler对象spec.defaultNodeSelector字段，这显示调度 pod 的默认位置：$ oc get schedulers.config.openshift.io cluster -o yaml
