Event-driven autoscaling on Kubernetes with KEDA and Azure Functions
summary
KEDA runs on any Kubernetes cluster and pairs with Azure Functions runtime to scale containers from zero based on event sources such as RabbitMQ Kafka or Azure Event Hubs. Demo builds an Azure Function with func and Docker pushes it to a registry then deploys via func kubernetes deploy, KEDA polls a queue every 5s with a 5s cooldown, processes 100 queued items and scales the deployment up to ~16–20 replicas before scaling back to zero. Also shows a Prometheus scaler reacting to 40 concurrent requests for 30s and k3s/k3d local clusters. scales from zero to thousands uses built-in scalers and Prometheus
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chapters (15)
- 0:00Intro
- 1:38Who am I
- 2:30What are containers
- 3:33What is Kubernetes
- 6:44Scaling
- 12:50Scalars
- 13:45How KEDA works
- 16:38Demo
- 18:45Creating a KEDA function
- 20:33KEDA function walkthrough
- 25:22KEDA function settings
- 30:38Demo application
- 31:40Demo results
- 33:24Demos 2 and 3
- 37:11Demo 3 Prometheus Trigger
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