Event Driven Autoscaling using KEDA - MVP
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Slidedeck used during the COding Night NZ sesison on 2 September 2024. The recording of the session is available on YouTube https://www.youtube.com/live/a8gwqaJR1Ck?si=V9iskiZQCUHOvgzj
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Event Driven Autoscaling using KEDA - MVP
- 1. Event Driven Autoscaling using KEDA Nilesh Gule @nileshgule
- 2. $whoami { “name” : “Nilesh Gule”, “website” : “https://www.HandsOnArchitect.com", “github” : “https://GitHub.com/NileshGule" “twitter” : “@nileshgule”, “linkedin” : “https://www.linkedin.com/in/nileshgule”, “YouTube” : “https://www.YouTube.com/@nilesh-gule” “likes” : “Technical Evangelism, Cricket”, }
- 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. Kubernetes scaling options Horizontal Pod Autoscaler Vertical Pod Autoscaler Cluster Autoscaler Manual
- 7. TechTalks Application Architecture TechTalks Consumer TechTalks Producer TechTalks Frontend (UI) Message Broker Polyglot Programming
- 10. Problem statement • Unpredictable workload • Special events (Christmas / New Year / Diwali / Deepavali / Thanksgiving etc.) • Scale based on factors outside of Kubernetes cluster • Scale based on combination of factors • Unexpected event (large number of logs compared to normal)
- 11. @nileshgule Demo KEDA in action
- 14. ScaledObject 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: techtalks-consumer-techtalks queueLength : ‘5’ authenticationRef: name: trigger-auth-rabbitmq-host
- 15. KEDA Features
- 16. Run Containers at scale ❖KEDA supported scale triggers including Azure Event Hub, Apache Kafka, RabbitMQ, MongoDB, MySQL, PostgreSQL etc. ❖Robust autoscaling without managing complex infrastructure ❖Scale to zero and pay only for use by the second https://keda.sh/docs/2.15/scalers/
- 17. Summary • KEDA helps to auto scale on metrics external to Kubernetes • KEDA does not modify the behavior of the application • Application designed using cloud native approach are more suited for KEDA integrations • KEDA helps to auto scale on composite metric • KEDA supports authentication providers
- 18. References https://www.youtube.com/@nilesh-gule https://dapr.io/ Dapr Publish and Subscribe Kubernetes Event Driven Autoscaling Serverless - Dapr and Azure Container Apps
- 19. Containerize Apps Resources https://github.com/NileshGule/pd-tech-fest-2019 https://github.com/NileshGule/cloud-native-ninja https://github.com/NileshGule/techtalks-azure-container-apps-demo Pd tech fest 2019 : https://github.com/NileshGule/pd-tech-fest-2019 Cloud Native Ninja : https://github.com/NileshGule/cloud-native-ninja Azure Container Apps : https://github.com/NileshGule/techtalks-azure-container-apps-demo Slides https://www.slideshare.net/nileshgule/ Slideshare: https://www.slideshare.net/nileshgule/ https://speakerdeck.com/nileshgule/ Speaker Deck: https://speakerdeck.com/nileshgule/
- 20. Nilesh Gule ARCHITECT | MICROSOFT MVP “Code with Passion and Strive for Excellence” nileshgule @nileshgule Nilesh Gule NileshGule www.handsonarchitect.com https://www.youtube.com/@nilesh-gule
- 21. #GlobalAzure Q&A