GlobalAzureBootCamp 2018

2. Agenda
• .Net core Application
• Containers - Dockerizing .net core application
• Kubernetes - Running and scaling the app in ACS
• Helm - Deployments using Helm
• Service mesh(Istio) - Canary Releases

3. .Net Core
Release 2.1
• .Net Core (Faster build time)
• ASP.NET core (SignalR)
• EF core (Use EF with cosmos DB)

4. Demo
• .Net core 2.1
• Self hosting apps

5. • What is container?

6. Containers
Containers = operating system virtualization Traditional virtual machines = hardware virtualization
Windows Server containers: maximum speed and density Hyper-V containers: isolation plus performance
OS
Kernel
Applications
Container Container Container
Hardware
Hardware
Container Container Container
Hyper-V
Container
Kernel
Container
Kernel
Container
Kernel
Hardware
OS
Application
VM VM VM
App
OS
App
OS
App
OS

7. The Container Advantage
Fast
iteration
Agile
delivery
Immutability Cost
savings
Elastic
bursting
Efficient
deployment
For ITFor developers

8. • An open source container runtime
• Mac, Windows & Linux support
• Command line tool
• “Dockerfile” file format for building container
images
• The Docker image format with layered filesystem
What is Docker?

9. Demo
• Docker for Windows
• Dockerfile
• docker build -t myapp .
• docker run -it -p 5000:80 myapp

10. Elements of Orchestration
Scheduling Affinity/anti-
affinity
Health
monitoring
Failover
Scaling Networking Service
discovery
Coordinated
app upgrades

11. What is Kubernetes?

12. Where to get Kubernetes

13. Creating kubernetes cluster in azure
• Shell script in azure portal
• ARM
• Portal
• CLI
• az login
• az group create --name K8sResourcegroup --location eastus
• az acs create --orchestrator-type kubernetes --resource-group
K8sResourceGroup --name K8sCluster --generate-ssh-keys
• az acs kubernetes get-credentials --resource-group=K8sResourceGroup --
name=K8sCluster

14. Azure container Registry
• Creating Azure Container registry (Portal OR ARM OR CLI)
• Configured it manually

15. Push Container to ACR
• docker login azurecontainerregistrygirish.azurecr.io -u azurecontainerregistrygirish -p
WyJoeWocxInaABWdl=3w+TDvSboc3qmF
• docker tag myapp:latest azurecontainerregistrygirish.azurecr.io/aspnetcoreapp:v1
• docker push azurecontainerregistrygirish.azurecr.io/aspnetcoreapp:v1

16. Architecture

17. Demo
• Create a ACR secret in kubernetes cluster
• .kubectl.exe create secret docker-registry myregistrykey --docker-
server=https://azurecontainerregistrygirish.azurecr.io --docker-
username=azurecontainerregistrygirish --docker-
password=WyJoeWocxInaABWdl=3w+TDvSboc3qmF --docker-email=ggoudar@xpirit.com
• Deployment
• .kubectl.exe apply -f D:k8sDeployment.json
• Service
• .kubectl.exe apply -f D:k8sService.json
• Desired state
• .kubectl.exe delete pod --all
• Scaling apps
• .kubectl scale --replicas=4 -f D:k8sDeployment.json

19. Setup - Helm
• Download Helm on windows
• Add the helm path to environment variables

21. Demo
• helm init – install the Tiller
• ./kubectl get pods --namespace kube-system
• helm create aspnetcoreapp-chart
• helm install .aspnetcoreapp-chart
• helm install .aspnetcoreapp-chart --set replicaCount=2
• helm upgrade whopping-zebra .aspnetcoreapp-chart
• helm get whopping-zebra --revision 1
• helm rollback whopping-zebra 1
• helm status whopping-zebra

22. Service Mesh
Code Independent (Polyglot)
• Intelligent Routing and Load-Balancing
• A/B Tests
• Smarter Canary Releases
• Dark Launches
• Chaos: Fault Injection
• Resilience: Circuit Breakers
• Observability: Metrics and Tracing
• Fleet wide policy enforcement
Next Generation Microservices - Service Mesh

23. Istio Architecture

24. Setup - Istio
• Download Istio on windows
• Add the istio path to environment variables
• kubectl.exe apply -f
C:UsersggoudarDownloadsCompressedistio_0.6.0_winistio-
0.6.0installkubernetesistio.yaml
• kubectl.exe get svc -n istio-system
• kubectl get pods -n istio-system
• Use Helm

25. Inject Istio into Kubernetes
• .kubectl.exe apply -f D:k8sDeploymentWithoutIstio.yaml
• istioctl kube-inject -f D:k8sDeploymentWithoutIstio.yaml >
D:k8sinject.yaml
• .kubectl.exe apply -f D:k8sinject.yaml

26. Canary Releases
• istioctl create -f D:k8sDeploymentWithIstio.yaml
• .kubectl -n istio-system get svc
• istioctl delete -n default -f D:k8sDeploymentWithIstio.yaml

29. https://globaldevopsbootcamp.com/