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Kubernetes

Interact with Kubernetes

Actions90

StatefulSets → Scale

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Overview

This node interacts with Kubernetes to perform various operations on Kubernetes resources. Specifically, the 'Scale' operation allows users to adjust the number of replicas for a StatefulSet resource within a specified namespace. This is useful for scaling applications up or down based on demand, such as increasing replicas during high traffic or reducing them to save resources.

Use Case Examples

  1. Scaling a StatefulSet named 'my-statefulset' in the 'default' namespace to 3 replicas to handle increased load.
  2. Reducing the replicas of a StatefulSet to 1 during off-peak hours to optimize resource usage.

Properties

Name Meaning
Namespace The Kubernetes namespace where the StatefulSet resource is located.
Resource Name The name of the StatefulSet resource to scale.
Replicas The desired number of replicas to scale the StatefulSet to.

Output

JSON

  • json - The response from the Kubernetes API after scaling the StatefulSet, typically containing the updated resource details.

Dependencies

  • Requires Kubernetes API credentials to authenticate and interact with the Kubernetes cluster.

Troubleshooting

  • Ensure that the 'Resource Name' is provided; otherwise, the node will throw an error indicating the resource name is required for the scale operation.
  • Verify that the Kubernetes credentials are correctly configured and have sufficient permissions to scale StatefulSets in the specified namespace.
  • Check that the 'Replicas' value is a valid number; invalid values may cause the scaling operation to fail.

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