Event driven workloads on Kubernetes with KEDA
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The document presents a talk by Nilesh Gule focused on event-driven workloads on Kubernetes, specifically utilizing KEDA for autoscaling. It outlines the architecture, prerequisites, and various scaling options available in Kubernetes, such as horizontal pod autoscaler and cluster autoscaler. Additionally, demo setups and configurations, along with resources for further learning about KEDA and Azure Kubernetes Service, are provided.
Event driven workloads on Kubernetes with KEDA
- 1. Nilesh Gule @nileshgule | www.HandsOnArchitect.com Event Driven Workloads on Kubernetes with
- 2. $whoami { “name” : “Nilesh Gule”, “website” : “https://www.HandsOnArchitect.com", “github” : “https://GitHub.com/NileshGule" “twitter” : “@nileshgule”, “linkedin” : “https://www.linkedin.com/in/nileshgule”, “likes” : “Technical Evangelism, Cricket”, “co-organizer” : “Azure Singapore UG” }
- 4. @nileshgule KEDA Kubernets based Event Driven Autoscaling Scaling in Kubernetes KEDA Overview TechTalks demo with RabbitMQ Autoscaling with KEDA KEDA Architecture Agenda
- 5. Pre-requisites • Self contained application with all its dependencies Docker • Orchestrates containers • Self healing • Service discovery • Scaling Kubernetes • Dockerhub / private container registry • Repository for storing container images Container Registry • Managed Kubernetes service on Azure • Native integration with other Azure services like Azure Active Directory (AAD), Azure Container registry (ACR), Azure Container Instances (ACI), Azure Monitor etc. Azure Kubernetes Service (AKS)
- 6. @nileshgule Kubernetes Scaling Options 1 2 3 Horizontal Pod Autoscaler Cluster Autoscaler Manual scaling
- 9. @nileshgule Demo setup 1000 (configurable) messages Batch of 50 (configurable) messages https://github.com/NileshGule/pd-tech-fest-2019
- 10. @nileshgule TechTalks Demo – Kubernetes deployment https://github.com/NileshGule/pd-tech-fest-2019 Manifest files describe Deployment and Service Helm charts to deploy third-party apps / services Octant – visualize k8s cluster Kubectl to deploy Manifest Postman to generate workload
- 11. @nileshgule Demo KEDA in action
- 13. apiVersion: keda.k8s.io/v1alpha1 kind: ScaledObject metadata: name: rabbitmq-consumer namespace: default labels: deploymentName: rabbitmq-consumer-deployment 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 queueLength : ‘5’ authenticationRef: name: trigger-auth-rabbitmq-host
- 15. Azure Blob Storage Azure Event Hub Azure Log Analytics Azure Service Bus Queues and Topics Azure Storage Queues ActiveMQ Artemis Kafka Prometheus RabbitMQ Redis Streams Redis Lists Liiklus NATS Huawei Cloudeye AWS CloudWatch AWS Kinesis Stream AWS Simple Queue Service GCP PubSub Azure functions MySQL PostgreSQL https://keda.sh/docs/2.0/scalers/
- 16. Summary • Single purpose lightweight component • Any Kubernetes cluster (1.16+) • Extends Kubernetes with event driven capabilities • No overwriting or duplication of existing functionalities • Maps an event source to Deployment, StatefulSet, Custom Resource or Job for scaling • Flexible and safe to run alongside any other Kubernetes framework or application • Support 35+ auto scalers out of the box KEDA
- 17. Play with Docker Play with Kubernetes Linux Academy learning paths
- 18. KEDA AKS cluster-autoscalar Horizontal pod autoscale https://azure.microsoft.com/mediahandler/files/resourcefiles/kubernetes-learning- path/Kubernetes%20Learning%20Path%20version%201.0.pdf
- 22. Thank you very much Code with Passion and Strive for Excellence https://www.slideshare.net/nileshgule/presentations https://speakerdeck.com/nileshgule/
- 23. Nilesh Gule ARCHITECT | MICROSOFT MVP “Code with Passion and Strive for Excellence” nileshgule @nileshgule Nilesh Gule NileshGule www.handsonarchitect.com
- 24. Q&A