Slide deck of the presentation done at Credit Agricole Corporate and Investment Bank demonstrating KEDA capabilities. The talk focused on different options for scaling in Kubernetes cluster. The demo covered the auto scaling options based on events using KEDA project.

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 5
--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

14. Azure Event Hub
Azure Service Bus Queues and Topics
Azure Storage Queues
Kafka
Prometheus
RabbitMQ
Redis Lists
Liiklus
NATS
AWS CloudWatch
AWS Simple Queue Service
GCP PubSub
Integrates with Azure functions

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
Batch of 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