Incomplete Documentation for Configuring Custom Metrics in Horizontal Pod Autoscaling (HPA)

[maliksaqibahmad]

Description: The current documentation for setting up Horizontal Pod Autoscaling (HPA) with custom metrics lacks sufficient details and examples, making it difficult for users to implement. Expanding this section with more information and practical examples would be beneficial.

Location:

• Page: HPA Walkthrough
• Section: "Support for Custom Metrics"

Problem:

1. The steps for setting up HPA with custom metrics are not detailed enough.
2. Missing examples of creating and configuring the custom metrics API adapter.
3. Lack of troubleshooting tips for common errors encountered while implementing custom metrics (e.g., error messages or metric scraping issues).

Expected Solution:

• Expand the existing documentation with a step-by-step guide to set up HPA using custom metrics.
• Include a working example for configuring the custom metrics API adapter, along with sample YAML files.
• Add a troubleshooting section for common errors or misconfigurations when working with custom metrics in HPA.
• Link to any external tools or relevant repositories (e.g., Prometheus, custom metrics adapter setup) to provide additional resources.

Impact: Improved clarity will help Kubernetes users more easily configure custom metrics in their autoscaling workflows, potentially reducing errors and support requests. This update would also make it easier for users new to Kubernetes HPA to understand how to leverage custom metrics.

Additional Information:

• Kubernetes Version: v1.22
• OS/Platform: Ubuntu 20.04
• Tools in use: Prometheus, kube-metrics-adapter

[k8s-ci-robot]

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[dipesh-rawat]

/language en /sig autoscaling

[ayushpatil2122]

/assign