3.3. 使用 Node Feature Discovery Operator

Node Feature Discovery（NFD）Operator 通过监视 NodeFeatureDiscovery CR 来编排运行 Node-Feature-Discovery 守护进程所需的所有资源。根据 NodeFeatureDiscovery CR，Operator 将在所需命名空间中创建操作对象（NFD）组件。您可以编辑 CR 来选择另一个 命名空间、镜像、imagePullPolicy 和 nfd-worker-conf，以及其他选项。

作为集群管理员，您可以使用 OpenShift Container Platform CLI 或 Web 控制台创建 NodeFeatureDiscovery 实例。

3.3.1. 使用 CLI 创建 NodeFeatureDiscovery 实例

作为集群管理员，您可以使用 CLI 创建 NodeFeatureDiscovery CR 实例。

先决条件

  • OpenShift Container Platform 集群
  • 安装 OpenShift CLI (oc) 。
  • 以具有 cluster-admin 特权的用户身份登录。
  • 安装 NFD Operator。

流程

  1. 创建以下 NodeFeatureDiscovery 自定义资源（CR），然后在 NodeFeatureDiscovery.yaml 文件中保存 YAML： 

    apiVersion: nfd.openshift.io/v1
kind: NodeFeatureDiscovery
metadata:
  name: nfd-instance
  namespace: openshift-nfd
spec:
  instance: "" # instance is empty by default
  topologyupdater: false # False by default
  operand:
    image: registry.redhat.io/openshift4/ose-node-feature-discovery:v4.13
    imagePullPolicy: Always
  workerConfig:
    configData: |
      core:
      #  labelWhiteList:
      #  noPublish: false
        sleepInterval: 60s
      #  sources: [all]
      #  klog:
      #    addDirHeader: false
      #    alsologtostderr: false
      #    logBacktraceAt:
      #    logtostderr: true
      #    skipHeaders: false
      #    stderrthreshold: 2
      #    v: 0
      #    vmodule:
      ##   NOTE: the following options are not dynamically run-time configurable
      ##         and require a nfd-worker restart to take effect after being changed
      #    logDir:
      #    logFile:
      #    logFileMaxSize: 1800
      #    skipLogHeaders: false
      sources:
        cpu:
          cpuid:
      #     NOTE: whitelist has priority over blacklist
            attributeBlacklist:
              - "BMI1"
              - "BMI2"
              - "CLMUL"
              - "CMOV"
              - "CX16"
              - "ERMS"
              - "F16C"
              - "HTT"
              - "LZCNT"
              - "MMX"
              - "MMXEXT"
              - "NX"
              - "POPCNT"
              - "RDRAND"
              - "RDSEED"
              - "RDTSCP"
              - "SGX"
              - "SSE"
              - "SSE2"
              - "SSE3"
              - "SSE4.1"
              - "SSE4.2"
              - "SSSE3"
            attributeWhitelist:
        kernel:
          kconfigFile: "/path/to/kconfig"
          configOpts:
            - "NO_HZ"
            - "X86"
            - "DMI"
        pci:
          deviceClassWhitelist:
            - "0200"
            - "03"
            - "12"
          deviceLabelFields:
            - "class"
  customConfig:
    configData: |
          - name: "more.kernel.features"
            matchOn:
            - loadedKMod: ["example_kmod3"]

有关如何自定义 NFD worker 的详情，请参考 nfd-worker 的配置文件参考。

  1. 运行以下命令来创建 NodeFeatureDiscovery CR 实例： 

    $ oc create -f NodeFeatureDiscovery.yaml

验证

  • 要验证是否已创建实例，请运行： 

    $ oc get pods

    输出示例

    NAME                                      READY   STATUS    RESTARTS   AGE
nfd-controller-manager-7f86ccfb58-vgr4x   2/2     Running   0          11m
nfd-master-hcn64                          1/1     Running   0          60s
nfd-master-lnnxx                          1/1     Running   0          60s
nfd-master-mp6hr                          1/1     Running   0          60s
nfd-worker-vgcz9                          1/1     Running   0          60s
nfd-worker-xqbws                          1/1     Running   0          60s

    一个成功的部署会显示 Running 状态。

3.3.2. 使用 Web 控制台创建 NodeFeatureDiscovery CR

流程

  1. 进入到 Operators → Installed Operators 页面。
  2. 查找 Node Feature Discovery，并在 Provided APIs 下看到一个方框。
  3. 单击 Create instance。
  4. 编辑 NodeFeatureDiscovery CR 的值。
  5. 点 Create。