Overview

This node interacts with Kubernetes clusters, specifically supporting operations on various Kubernetes resources including StatefulSets. The 'Scale' operation allows users to adjust the number of replicas for a StatefulSet within a specified namespace. This is useful for managing application scaling dynamically, such as increasing replicas during high load or reducing them to save resources.

Use Case Examples

1. Scaling a StatefulSet named 'web-app' in the 'production' namespace from 3 to 5 replicas to handle increased traffic.
2. Scaling down a StatefulSet in the 'default' namespace to zero replicas for maintenance.

Properties

Output

JSON

• status - The status or result of the scale operation, typically including details about the updated StatefulSet.

Dependencies

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

Troubleshooting

• Ensure Kubernetes credentials are correctly configured and valid; otherwise, the node will throw a 'No credentials got returned!' error.
• The 'Resource Name' must be specified and correspond to an existing StatefulSet in the given namespace; otherwise, the scale operation will fail.
• Namespace defaults to 'default' if not specified, but ensure the StatefulSet exists in that namespace to avoid errors.

Links

• Kubernetes StatefulSets - Official Kubernetes documentation on StatefulSets, explaining their purpose and usage.
• Scaling a StatefulSet - Guide on how to scale StatefulSets in Kubernetes.