You can scale up or scale down the number of Worker nodes in each node pool and add labels. If a network function with infrastructure requirements is running in this node pool, the scaling up operation automatically applies all the node customizations on the new nodes.

Procedure

  1. Log in to the VMware Telco Cloud Automation web interface.
  2. Go to Infrastructure > CaaS Infrastructure > Cluster Instances.
  3. Click the Kubernetes cluster name that you want to configure.
  4. Select the Node Pools tab, click the Options (⋮) symbol against the node pool that you want to edit.
  5. Click Edit, there will show out Node Pool Details dialog.
  6. Edit the Number of replicas to scale down or scale up the node pool nodes.
  7. Click Add Label or Remove to edit the node labels, which to be used as node selectors as node selectors when instantiating the network functions.
  8. Expand Advanced Options, enable or disable Maintenance Mode.
  9. To enable Machine Health Check, select Configure Machine Health Check. For more information, see Machine Health Check.
    1. (Optional) Enter the Node Start Up Timeout time duration for Machine Health Check to wait for a node to join the cluster. If a node does not join during the specified time, Machine Health Check considers it unhealthy.
    2. Select the node unhealthy conditions, which support Ready/MemoryPressure/DiskPressure/PIDPressure/NetworkUnavailable. Select the Status, such as False/Unknown/True. Then select Timeout. If any of these conditions are met, Machine Health Check considers these nodes as unhealthy and starts the remediation process.
  10. Click Apply.
  11. After the Node Pool dialog close, click Next jump to Ready to Deploy, Click Deploy.

Results

You have successfully edited the Node Pool configuration of a Kubernetes cluster instance.