5.2. 配置机器健康检查以使用 Self Node Remediation Operator

流程

1. 创建 SelfNodeRemediationTemplate CR：

   1. 定义 SelfNodeRemediationTemplate CR：

      apiVersion: self-node-remediation.medik8s.io/v1alpha1
      kind: SelfNodeRemediationTemplate
      metadata:
        namespace: openshift-machine-api
        name: selfnoderemediationtemplate-sample
      spec:
        template:
          spec:
            remediationStrategy: Automatic 

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      1

      指定补救策略。默认补救策略是 Automatic。

   2. 要创建 SelfNodeRemediationTemplate CR，请运行以下命令：

      $ oc create -f <snrt-name>.yaml

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2. 创建或更新 MachineHealthCheck CR 以指向 SelfNodeRemediationTemplate CR：

   1. 定义或更新 MachineHealthCheck CR：

      apiVersion: machine.openshift.io/v1beta1
      kind: MachineHealthCheck
      metadata:
        name: machine-health-check
        namespace: openshift-machine-api
      spec:
        selector:
          matchLabels: 

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            machine.openshift.io/cluster-api-machine-role: "worker"
            machine.openshift.io/cluster-api-machine-type: "worker"
        unhealthyConditions:
        - type:    "Ready"
          timeout: "300s"
          status: "False"
        - type:    "Ready"
          timeout: "300s"
          status: "Unknown"
        maxUnhealthy: "40%"
        nodeStartupTimeout: "10m"
        remediationTemplate: 

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          kind: SelfNodeRemediationTemplate
          apiVersion: self-node-remediation.medik8s.io/v1alpha1
          name: selfnoderemediationtemplate-sample

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      选择机器健康检查是否为 worker 还是 control-plane 节点。标签也可以是用户定义的。

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      指定补救模板的详情。

   2. 要创建 MachineHealthCheck CR，请运行以下命令：

      $ oc create -f <mhc-name>.yaml

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   3. 要更新 MachineHealthCheck CR，请运行以下命令：

      $ oc apply -f <mhc-name>.yaml

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