Slidedeck used during the session for SGInnovate / Serverless SG meetup https://www.sginnovate.com/events/serverless-singapore-–-august-meetup Demonstrated KEDA with Azure Functions for Azure Storage Queues with ACI. Also demonstrated scaling of .Net Core RabbitMQ consumer deployed to an AKS cluster.

1. Auto-Scaling containers with
Nilesh Gule
@nileshgule | www.HandsOnArchitect.com

2. $whoami
{
“name” : “Nilesh Gule”,
“website” : “https://www.HandsOnArchitect.com",
“github” : “https://github.com/NileshGule"
“twitter” : “@nileshgule”,
“linkedin” : “https://www.linkedin.com/in/nileshgule”,
“email” : “nileshgule@gmail.com",
“likes” : “Technical Evangelism, Cricket”
}

6. Pros Cons
Scale k8s objects:
Kubectl scale –replicas=3 processor-deployment.yml
Kubectl scale –replicas=3 deployment/rabbitmq-consumer
Scale AKS cluster:
az aks scale --resource-group myResourceGroup
--name myAKSCluster
--node-count 1
--nodepool-name <your node pool name>

7. Pros Cons
kubectl autoscale deployment php-apache
--cpu-percent=50
--min=1
--max=10

9. Pros Cons

10. Pros Cons

11. Kubernetes-based Event Driven
Autoscaling

15. Demo Autoscaling Storage
Queue consumer with ACI

16. 5000
messages

17. apiVersion: keda.k8s.io/v1alpha1
kind: ScaledObject
metadata:
name: hello-keda
namespace: default
labels:
deploymentName: hello-keda
spec:
scaleTargetRef:
deploymentName: hello-keda
pollingInterval: 5 # Optional. Default: 30 seconds
maxReplicaCount: 15 # Optional. Default: 100
triggers:
- type: azure-queue
metadata:
name: myQueueItem
type: queueTrigger
direction: in
queueName: js-queue-items
connection: AzureWebJobsStorage

18. Demo Autoscaling RabbitMQ

19. https://github.com/NileshGule/AKS-learning-series

20. 1000
messages
10
messages

21. apiVersion: keda.k8s.io/v1alpha1
kind: ScaledObject
metadata:
name: rabbitmq-consumer
namespace: default
labels:
deploymentName: rabbitmq-consumer
spec:
scaleTargetRef:
deploymentName: rabbitmq-consumer
pollingInterval: 5 # Optional. Default: 30 seconds
cooldownPeriod: 30 # Optional. Default: 300 seconds
minReplicaCount: 1 # Optional. Default: 0
maxReplicaCount: 30 # Optional. Default: 100
triggers:
- type: rabbitmq
metadata:
queueName: hello
host: 'amqp://user:PASSWORD@rabbitmq.default.svc.cluster.local:5672’
queueLength : '5'

22. AKS cluster-autoscalar
Virtual Node
Horizontal pod autoscale
virtual kubelet
KEDA
Azure Function with Queue

25. Thank you very much
Code with Passion and Strive for Excellence
https://github.com/NileshGule/AKS-learning-series
https://github.com/NileshGule/pd-tech-fest-2019
https://github.com/NileshGule/sample-dotnet-core-rabbitmq-keda
https://www.slideshare.net/nileshgule/presentations
https://speakerdeck.com/nileshgule/

26. Q&A