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Authentication

This demo is using TriggerAuthentication, which is namespace scoped. To scope to the entire cluster, use ClusterTriggerAuthentication.

Triggers

  • protocol: amqp
  • queueName: test_q
  • mode: QueueLength
  • value: 100

Example events from the ScaledObject

Normal  KEDAScalersStarted          21m                keda-operator  Started scalers watch
Normal  KEDAScaleTargetDeactivated  21m                keda-operator  Deactivated apps/v1.Deployment demo-keda/httpbin from 1 to 0
Normal  ScaledObjectReady           20m (x2 over 21m)  keda-operator  ScaledObject is ready for scaling

After publishing 200 messages to the queue, the httpbin deployment scaled up.

❯ kgp -o wide -lapp=httpbin
NAME                       READY   STATUS    RESTARTS   AGE   IP            NODE       NOMINATED NODE   READINESS GATES
httpbin-779c54bf49-rxbcp   1/1     Running   0          53s   172.18.0.7    minikube   <none>           <none>
httpbin-779c54bf49-tb885   1/1     Running   0          43s   172.18.0.10   minikube   <none>           <none>

Event showing the ScaledObject increasing the replicas then decreasing post consumption

  Normal  KEDAScaleTargetActivated    9m14s  keda-operator  Scaled apps/v1.Deployment demo-keda/httpbin from 0 to 1
  Normal  KEDAScaleTargetDeactivated  9s     keda-operator  Deactivated apps/v1.Deployment demo-keda/httpbin from 2 to 0

After the scale down event, there are 0 httpbin pods

❯ kgp -o wide -lapp=httpbin
No resources found in demo-keda namespace.