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Scale applications based on an external push scaler.

Availability: v2.0+ Maintainer: Microsoft

Trigger Specification

This specification describes the external-push trigger for an external push scaler.

triggers:
- type: external-push
  metadata:
    scalerAddress: external-scaler-service:8080
    tlsCertFile: /path/to/tls/cert.pem # optional

Parameter list:

  • scalerAddress: Address of the external push scaler implementing ExternalScaler.StreamIsActive in externalscaler.proto. Format must be host:port.
  • tlsCertFile: Location of a certificate to use for the GRPC connection to authenticate with. (optional)

The entire metadata object is passed to the external scaler in ScaledObjectRef.scalerMetadata

For implementing an external scaler, refer to External Scalers Concept

Authentication Parameters

Not supported.

Example

apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: name
  namespace: namespace
spec:
  scaleTargetRef:
    name: keda-node
  triggers:
  - type: external-push
    metadata:
      scalerAddress: external-scaler-service:8080
      tlsCertFile: /path/to/tls/cert.pem # optional


Currently available scalers for KEDA