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Trigger Specification
This specification describes the stan trigger for NATS Streaming.
triggers:
- type: stan
metadata:
natsServerMonitoringEndpoint: "stan-nats-ss.stan.svc.cluster.local:8222" # Location of the Nats Streaming monitoring endpoint
queueGroup: "grp1" # Queue group name of the subscribers
durableName: "ImDurable" # Must identify the durability name used by the subscribers
subject: "Test" # Name of channel
lagThreshold: "10" # Configures the TargetAverageValue on the Horizontal Pod Autoscaler (HPA)).
Authentication Parameters
Not supported yet.
Example
apiVersion: keda.k8s.io/v1alpha1
kind: ScaledObject
metadata:
name: stan-scaledobject
namespace: gonuts
spec:
pollingInterval: 10 # Optional. Default: 30 seconds
cooldownPeriod: 30 # Optional. Default: 300 seconds
minReplicaCount: 0 # Optional. Default: 0
maxReplicaCount: 30 # Optional. Default: 100
scaleTargetRef:
deploymentName: gonuts-sub
triggers:
- type: stan
metadata:
natsServerMonitoringEndpoint: "stan-nats-ss.stan.svc.cluster.local:8222"
queueGroup: "grp1"
durableName: "ImDurable"
subject: "Test"
lagThreshold: "10"