13.5. 使用 PolicyGenTemplate CR 将 worker 节点策略应用到 worker 节点

流程

1. 创建以下 PolicyGenTemplate CR：

   apiVersion: ran.openshift.io/v1
   kind: PolicyGenTemplate
   metadata:
     name: "example-sno-workers"
     namespace: "example-sno"
   spec:
     bindingRules:
       sites: "example-sno" 1
     mcp: "worker" 2
     sourceFiles:
       - fileName: MachineConfigGeneric.yaml 3
         policyName: "config-policy"
         metadata:
           labels:
             machineconfiguration.openshift.io/role: worker
           name: enable-workload-partitioning
         spec:
           config:
             storage:
               files:
               - contents:
                   source: data:text/plain;charset=utf-8;base64,W2NyaW8ucnVudGltZS53b3JrbG9hZHMubWFuYWdlbWVudF0KYWN0aXZhdGlvbl9hbm5vdGF0aW9uID0gInRhcmdldC53b3JrbG9hZC5vcGVuc2hpZnQuaW8vbWFuYWdlbWVudCIKYW5ub3RhdGlvbl9wcmVmaXggPSAicmVzb3VyY2VzLndvcmtsb2FkLm9wZW5zaGlmdC5pbyIKcmVzb3VyY2VzID0geyAiY3B1c2hhcmVzIiA9IDAsICJjcHVzZXQiID0gIjAtMyIgfQo=
                 mode: 420
                 overwrite: true
                 path: /etc/crio/crio.conf.d/01-workload-partitioning
                 user:
                   name: root
               - contents:
                   source: data:text/plain;charset=utf-8;base64,ewogICJtYW5hZ2VtZW50IjogewogICAgImNwdXNldCI6ICIwLTMiCiAgfQp9Cg==
                 mode: 420
                 overwrite: true
                 path: /etc/kubernetes/openshift-workload-pinning
                 user:
                   name: root
       - fileName: PerformanceProfile.yaml
         policyName: "config-policy"
         metadata:
           name: openshift-worker-node-performance-profile
         spec:
           cpu: 4
             isolated: "4-47"
             reserved: "0-3"
           hugepages:
             defaultHugepagesSize: 1G
             pages:
               - size: 1G
                 count: 32
           realTimeKernel:
             enabled: true
       - fileName: TunedPerformancePatch.yaml
         policyName: "config-policy"
         metadata:
           name: performance-patch-worker
         spec:
           profile:
             - name: performance-patch-worker
               data: |
                 [main]
                 summary=Configuration changes profile inherited from performance created tuned
                 include=openshift-node-performance-openshift-worker-node-performance-profile
                 [bootloader]
                 cmdline_crash=nohz_full=4-47 5
                 [sysctl]
                 kernel.timer_migration=1
                 [scheduler]
                 group.ice-ptp=0:f:10:*:ice-ptp.*
                 [service]
                 service.stalld=start,enable
                 service.chronyd=stop,disable
           recommend:
           - profile: performance-patch-worker

   1

   该策略应用于带有此标签的所有集群。

   2

   MCP 字段必须设置为 worker。

   3

   此通用 MachineConfig CR 用于在 worker 节点上配置工作负载分区。

   4

   必须为每个特定的硬件平台配置 cpu.isolated 和 cpu.reserved 字段。

   5

   cmdline_crash CPU 集必须与 PerformanceProfile 部分中设置的 cpu.isolated 匹配。

   通用 MachineConfig CR 用于在 worker 节点上配置工作负载分区。您可以生成 crio 和 kubelet 配置文件的内容。

2. 将创建的策略模板添加到由 ArgoCD policies 应用程序监控的 Git 存储库中。
3. 在 kustomization.yaml 文件中添加策略。
4. 提交 Git 中的更改，然后推送到由 GitOps ZTP ArgoCD 应用程序监控的 Git 存储库。

5. 要将新策略修复到 spoke 集群，请创建一个 TALM 自定义资源：

   $ cat <<EOF | oc apply -f -
   apiVersion: ran.openshift.io/v1alpha1
   kind: ClusterGroupUpgrade
   metadata:
     name: example-sno-worker-policies
     namespace: default
   spec:
     backup: false
     clusters:
     - example-sno
     enable: true
     managedPolicies:
     - group-du-sno-config-policy
     - example-sno-workers-config-policy
     - example-sno-config-policy
     preCaching: false
     remediationStrategy:
       maxConcurrency: 1
   EOF