Trigger Specification
This specification describes the stan trigger for NATS Streaming.
triggers:
- type: stan
metadata:
natsServerMonitoringEndpoint: "stan-nats-ss.stan.svc.cluster.local:8222"
queueGroup: "grp1"
durableName: "ImDurable"
subject: "Test"
lagThreshold: "10"
Parameter list:
natsServerMonitoringEndpoint- Location of the Nats Streaming monitoring endpoint.queueGroup- Name of queue group of the subscribers.durableName- Name of durability used by subscribers.subject- Name of the channel.lagThreshold- Average target value to trigger scaling actions.
Authentication Parameters
Connection Authentication:
Not supported yet.
Example
apiVersion: keda.sh/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:
name: gonuts-sub
triggers:
- type: stan
metadata:
natsServerMonitoringEndpoint: "stan-nats-ss.stan.svc.cluster.local:8222"
queueGroup: "grp1"
durableName: "ImDurable"
subject: "Test"
lagThreshold: "10"