Serverless Computing in Azure Kubernetes Service mit KEDA

Slides from my Thinktecture Webinar on serverless computing in Azure Kubernetes Service (AKS) with KEDA.

Transcript

1. Serverless Computing in Azure Kubernetes Service mit KEDA Thorsten Hans @ThorstenHans Consultant
2. Focus: Cloud Native & Infrastructure as Code Consultant @ Thinktecture AG thorsten.hans@thinktecture.com thorsten.hans@gmail.com thinktecture.com thorsten-hans.com @ThorstenHans Thorsten Hans
3. Talking Points Scaling in Kubernetes Scaling with KEDA Hands-On
4. Kubernetes scaling capabilities § Manual scaling § Load based scaling § Horizontal Pod Autoscaler § AKS Cluster Autoscaling Scaling in Kubernetes
5. Manual scaling Scaling in Kubernetes
6. Horizontal Pod Autoscaler (HPA) Scaling in Kubernetes
7. Cluster Auto-Scaler in Azure Kubernetes Service (AKS) Scaling in Kubernetes
8. Talking Points Scaling in Kubernetes Scaling with KEDA Hands-On
9. Kubernetes Event-driven Autoscaling § https://keda.sh § Cloud Native Computing Foundation sandbox project § Vendor Agnostic § Contextual Autoscaling § Ships with 25 built-in scalers § Built-in Azure Functions Support What is KEDA
10. Architecture KEDA https://keda.sh/docs/2.0/concepts/
11. Messaging System / Database / Cache / … Architecture Simplified KEDA Kubernetes Cluster KEDA Operator Kubernetes Pod Kubernetes Pod Kubernetes Pod Kubernetes Pod Kubernetes Pod Kubernetes Pod Kubernetes Pod Kubernetes Pod Kubernetes Pod
12. Flexbile scaling § Scale based on actual load § Built-in scalers for § Databases § Messaging engines § Telemetry systems § Cache engines § Unified configuration approach § ScaledObject specification KEDA Scalers
13. Talking Points Scaling in Kubernetes Scaling with KEDA Hands-On
14. Async Processing with Azure Functions and KEDA Demo Architecture Local Machine Message Producer Azure Public Cloud Azure Storage Account Queue (aaa-tasks) Azure Storage Account Queue (aaa-transformed) Azure Storage Account Blobs (processed) Azure Kubernetes Service KEDA Operator Message Transformer (Azure Functions Container) Message Dispatcher (Azure Functions Container) Horizontal Pod Autoscaler
15. Kubernetes Event-driven Autoscaling - Install KEDA - Deploy Azure Functions - Configure Connections to Azure Storage - Deploy ScaledObjects - Produce Load to verify scaling Demo
16. KEDA outperforms traditional resource based scaling in Kubernetes where fine-granular components have to scale contextually Takeaway
17. DEMO Source Code is on GitHub https://github.com/thinktecture/keda-webinar-november-2020