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Tencent Kubernetes Engine
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    Declarative Operation Practice

    Last updated: 2024-06-27 11:09:15
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      Operations Supported by Kubectl

      CRD Type
      Operation
      MachineSet
      Creating a native node pool
      kubectl create -f machineset-demo.yaml
      Viewing the list of native node pools
      kubectl get machineset
      Viewing the YAML details of a native node pool
      kubectl describe ms machineset-name
      Deleting a native node pool
      kubectl delete ms machineset-name
      Scaling out a native node pool
      kubectl scale --replicas=3 machineset/machineset-name
      Machine
      Viewing native nodes
      kubectl get machine
      Viewing the YAML details of a native node
      kubectl describe ma machine-name
      Deleting a native node
      kubectl delete ma machine-name
      HealthCheckPolicy
      Creating a fault self-healing rule
      kubectl create -f demo-HealthCheckPolicy.yaml
      Viewing the list of fault self-healing rules
      kubectl kubectl get HealthCheckPolicy
      Viewing the YAML details of a fault self-healing rule
      kubectl describe HealthCheckPolicy HealthCheckPolicy-name
      Deleting a fault self-healing rule
      kubectl delete HealthCheckPolicy HealthCheckPolicy-name
      

      Using CRD via YAML

      MachineSet

      For the parameter settings of a native node pool, refer to the Description of Parameters for Creating Native Nodes.
      apiVersion: node.tke.cloud.tencent.com/v1beta1
      kind: MachineSet
      spec:
        autoRepair: false #Fault self-healing switch
        displayName: test
        healthCheckPolicyName:  #Self-healing rule name
        instanceTypes: #Model specification
        - S5.MEDIUM2
        replicas: 1  #Node quantity
        scaling: #Auto-scaling policy
          createPolicy: ZonePriority
          maxReplicas: 1
        subnetIDs: #Node pool subnet
        - subnet-nnwwb64w
        template:
          metadata:
            annotations:
              node.tke.cloud.tencent.com/machine-cloud-tags: '[{"tagKey":"xxx","tagValue":"xxx"}]' #Tencent Cloud tag
          spec:
            displayName: tke-np-mpam3v4b-worker #Custom display name
            metadata:
              annotations:
                annotation-key1: annotation-value1 #Custom annotations
              labels:
                label-test-key: label-test-value #Custom labels
            providerSpec:
              type: Native
              value:
                dataDisks: #Data disk parameters
                - deleteWithInstance: true
                  diskID: ""
                  diskSize: 50
                  diskType: CloudPremium
                  fileSystem: ext4
                  mountTarget: /var/lib/containerd
                instanceChargeType: PostpaidByHour #Node billing mode
                keyIDs: #Node login SSH parameters
                - skey-xxx
                lifecycle: #Custom script
                  postInit: echo "after node init"
                  preInit: echo "before node init"
                management: #Settings of Management parameters, including kubelet\\kernel\\nameserver\\hostname
                securityGroupIDs: #Security group configuration
                - sg-xxxxx
                systemDisk: #System disk configuration
                  diskSize: 50
                  diskType: CloudPremium
            runtimeRootDir: /var/lib/containerd
            taints: #Taints, not required            
            - effect: NoExecute       
              key: taint-key2
              value: value2
        type: Native

      Kubectl Operation Demo

      MachineSet

      1. Run the kubectl create -f machineset-demo.yaml command to create a MachineSet based on the preceding YAML file.
      
      2. Run the kubectl get machineset command to view the status of the MachineSet np-pjrlok3w. At this time, the corresponding node pool already exists in the console, and its node is being created.
      
      
      3. Run the kubectl describe machineset np-pjrlok3w command to view the description of the MachineSet np-pjrlok3w.
      
      4. Run the kubectl scale --replicas=2 machineset/np-pjrlok3w command to execute scaling of the node pool.
      
      5. Run the kubectl delete ms np-pjrlok3w command to delete the node pool.
      

      Machine

      1. Run the kubectl get machine command to view the machine list. At this time, the corresponding node already exists in the console.
      
      
      2. Run the kubectl describe ma np-14024r66-nv8bk command to view the description of the machine np-14024r66-nv8bk.
      
      3. Run the kubectl delete ma np-14024r66-nv8bk command to delete the node.
      Note:
      If you delete the node directly without adjusting the expected number of nodes in the node pool, the node pool will detect that the actual number of nodes does not meet the declarative number of nodes, and then create a new node and add it to the node pool. It is recommended to delete a node with the method as follows:
      1. Run the kubectl scale --replicas=1 machineset/np-xxxxx command to adjust the expected number of nodes.
      2. Run the kubectl delete machine np-xxxxxx-dtjhd command to delete the corresponding node.
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