TechTalks - Auto-scaling containers with KEDA

Slidedeck from the TechTalks meetup (https://www.meetup.com/techtalkssg/events/264664700/) on Auto-scaling containers with KEDA. The talk demonstrates KEDA capabilities with 2 different examples. One using Azure Container Instances with Node.js consumer for Azure Storage Queues. The second example is of .Net Core RabbitMQ consumer running in the containerized environment on Azure Kubernetes Service.

Transcript

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