Keda autoscaling support

[adedj]

Add KEDA autoscaling support for Langfuse components

This PR adds KEDA (Kubernetes Event-driven Autoscaling) support for both Langfuse web and worker components, providing more flexible autoscaling options beyond the standard Horizontal Pod Autoscaler (HPA).

Changes

• Added KEDA configuration for both web and worker components.
• Ensured mutual exclusivity between KEDA and HPA

KEDA is a single-purpose and lightweight component that can be added into any Kubernetes cluster. KEDA works alongside standard Kubernetes components like the Horizontal Pod Autoscaler and can extend functionality without overwriting or duplication.

Many companies prefer KEDA over traditional HPA

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Important

Add KEDA autoscaling support for Langfuse web and worker components, ensuring exclusivity with HPA.

• KEDA Autoscaling:
  • Added KEDA configuration for Langfuse web and worker components in values.yaml.
  • Introduced scaled-object.yaml for both web and worker to define KEDA ScaledObject resources.
  • KEDA takes precedence over HPA when both are enabled.
• Deployment Changes:
  • Updated deployment.yaml for web and worker to conditionally set replicas based on KEDA and HPA status.
• HPA Adjustments:
  • Modified hpa.yaml for web and worker to disable HPA when KEDA is enabled.

^{This description was created by for 475c92a. It will automatically update as commits are pushed.}