kafka-scaled-object.yaml

apiVersion: keda.k8s.io/v1alpha1
kind: ScaledObject
metadata:
  name: kafka-scaledobject
  namespace: default
  labels:
    deploymentName: kafka-consumer-deployment # Required Name of the deployment we want to scale.
spec:
  scaleTargetRef:
    deploymentName: kafka-consumer-deployment # Required Name of the deployment we want to scale.
  pollingInterval: 5
  minReplicaCount: 1   #Optional Default 0
  maxReplicaCount: 10  #Optional Default 100
  triggers:
  - type: kafka
    metadata:
      # Required
      brokerList: 192.168.1.4:9092 # Kafka bootstrap server host and port
      consumerGroup: order-shipper  # Make sure that this consumer group name is the same one as the one that is consuming topics
      topic: test
      lagThreshold: "10" # Optional. How much the stream is lagging on the current consumer group