Slide deck from the virtual session for Dear Azure community in India. During the session, we covered the containerizing .net Core application, publish Docker images to private Azure Container Registry (ACR). These containers images are deployed to Azure Kubernetes Service cluster. Using Helm we deploy RabbitMQ and KEDA on the Kubernetes cluster. Finally, we extend the autoscaling to serverless environment with Azure Container Instances (ACI) and virtual node The recording of the session is available on YouTube https://youtu.be/ib-Jpfg6Iuk?WT.mc_id=DP-MVP-5003170

1. Nilesh Gule
@nileshgule | www.HandsOnArchitect.com
Scaling .Net Core
Containers with
Azure Kubernetes Service and
Serverless ACI

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
Containerize .Net Core
App
Build & publish Docker images to private Azure
Container Registry (ACR)
Autoscale using k8s
K8s deployment, KEDA autoscaling, extending
to serverless Azure Container Instences (ACI)
Application Overview Docker Images
Container Registries Kubernetes deployment
Autoscaling with KEDA Serverless container with ACI
Agenda

6. @nileshgule
RabbitMQ Demo – Producer & Consumer
1000
(configurable)
messages
Batch of 50
(configurable)
messages
https://github.com/NileshGule/pd-tech-fest-2019

7. @nileshgule
Docker – main features
Security
Process isolation, resource
limits
Portability
Runs across multiple env
with Docker runtime
Performance
Smaller footprint than VM, lightning
fast
Multi-cloud
Deploy Docker images to multi-cloud
environments
Isolation
Isolates multiple versions of dependencies
Agility
Integrates into CI CD pipelines

8. Demo build & publish docker
images

9. @nileshgule
RabbitMQ Demo – Docker Images
https://github.com/NileshGule/pd-tech-fest-2019
 Docker multi-stage builds
 Docker-compose, build & publish multiple
images
 Azure Container Registry (ACR) private registry

10. @nileshgule
RabbitMQ Demo –Docker Container Registry

11. @nileshgule
Kubernetes – main features
Self healing
Restart / Replace / kill
containers based on heath
checks
Service
discovery & LB
Expose container using DNS
name or IP
Secrets & Config Mgt
Manage sensitive info (pwd / Oauth
tokens / SSH keys etc)
Auto bin packing
Fits containers to nodes based on
resource limits
Storage Orchestration
Mount storage from local, public cloud oro
ther sources
Auto rollout & rollback
Desired state configuration to manage rollouts
& upgrades

12. @nileshgule

13. Demo deploy application
containers

14. @nileshgule
RabbitMQ 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

15. AKS Managed Identity
(aksmqcluster-agentpool)
nileshgule/techtalksmqproducer
nileshgule/techtalksmqconsumer
ngACRRegistry aksmqCluster
ngacrregistry.azurecr.io/nileshgule
/techtalksmqproducer
ngacrregistry.azurecr.io/nileshgule/
techtalksmqconsumer
Acr pull
acrResourceGroup demo-kedaSeriesRG
docker push using
azure user token
Acr login using AAD
No need to use
Admin user

16. @nileshgule
Kubernetes Scaling Options
1
2
3
Horizontal Pod
Autoscaler
Cluster Autoscaler
Manual scaling

17. KEDA Architecture

18. Azure Event Hub
Azure Service Bus Queues and Topics
Azure Storage Queues
Kafka
Prometheus
RabbitMQ
Redis Lists
Liiklus
NATS
AWS CloudWatch
AWS Simple Queue Service
GCP PubSub
Integrates with Azure functions

19. @nileshgule
RabbitMQ Demo – KEDA Event driven autoscaling
 RabbitMQ event source
 KEDA autoscaler to scale consumer deployment1000
(configurable)
messages
Batch of 50
(configurable)
messages
https://github.com/NileshGule/pd-tech-fest-2019

20. Demo deploy KEDA on AKS
cluster

21. 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

23. Pros Cons

24. Scale RabbitMQ Consumer with Virtual Node
kedaVNet
kedaAKSSubnet kedaVirtualNodeSubnet
Producer -
.Net Core
API
Consumers
- .Net Core
exe

25. Demo extend KEDA with Virtual
Node

26. Summary
• Self contained application with all its
dependencies
Docker
• Orchestrates containers
• Self healing
• Service discovery
• Scaling
Kubernetes
• Extends Kubernetes with event driven capabilities
KEDA

27. Play with Docker
Play with Kubernetes
Kubernetes Learning Path : MSLearn
Linux Academy learning paths

28. AKS cluster-autoscalar
Virtual Node
Horizontal pod autoscale
virtual kubelet
KEDA
https://azure.microsoft.com/mediahandler/files/resourcefiles/kubernetes-learning-
path/Kubernetes%20Learning%20Path%20version%201.0.pdf

30. Azure Kubernetes
Service Workshop
References

31. https://github.com/NileshGule/pd-tech-fest-2019

32. Thank you very much
Code with Passion and Strive for Excellence
https://www.slideshare.net/nileshgule/presentations
https://speakerdeck.com/nileshgule/

33. Nilesh Gule
ARCHITECT | MICROSOFT MVP
“Code with Passion and
Strive for Excellence”
nileshgule @nileshgule Nilesh Gule
NileshGule
www.handsonarchitect.com

34. Q&A