.NET Day 2022 - Kubernetes in Azure for .NET Developers - Zero to Hero

Transcript

1. @annietalvasto 2 Kubernetes in Azure for .NET Developers - Zero to Hero
2. Who am I? @AnnieTalvasto Sr. Product Marketing Mgr at Camunda oCNCF Ambassador oAzure MVP oKubernetes & CNCF meetup co-organizer oStartup-coach oCo-host of Cloudgossip podcast - cloudgossip.net @annietalvasto 3 @annietalvasto 3 @AnnieTalvasto
3. What value do you get by attending this talk? oLearn Kubernetes in the cloud @annietalvasto 4 @annietalvasto 4 @AnnieTalvasto
4. Impact of cloud native oKubernetes has crossed the adoption chasm to become a mainstream global technology. oAccording to CNCF9s respondents, 96% of organizations are either using or evaluating Kubernetes 3 a record high since the surveys began in 2016. oCNCF 2021 Survey @annietalvasto 5 @annietalvasto 5 @annietalvasto 5 @annietalvasto 5 @AnnieTalvasto
6. @annietalvasto 7 Ref: CNCF 2020 Survey @annietalvasto 7 @annietalvasto 7 @AnnieTalvasto
7. Agenda: oContainers & Kubernetes oKubernetes services in Azure oHow to use AKS oDeploying a .NET app to Kubernetes oNext steps in Kubernetes o Helm o Linkerd o Keda oResources @annietalvasto 8 @annietalvasto 8 @annietalvasto 8 @AnnieTalvasto
8. Containers & Kubernetes
10. @annietalvasto 11 @annietalvasto 11 @annietalvasto 11 @AnnieTalvasto oDocker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly.
11. On-premises Cloud Anywhere Monolith Microservice Any app .Net Java Python Node Any language Linux Windows Any OS The benefits of using containers
12. @annietalvasto 13 @annietalvasto 13 @annietalvasto 13 @AnnieTalvasto oKubernetes, also known as K8s, is an open-source system for automating deployment, scaling, and management of containerized applications.
13. @annietalvasto 14 @annietalvasto 14 @annietalvasto 14 @AnnieTalvasto Cattle vs Pet
14. @annietalvasto 15 @annietalvasto 15 @annietalvasto 15 @AnnieTalvasto
15. Kubernetes Services in Azure
16. Azure Kubernetes Service (AKS) Simplify the deployment, management, and operations of Kubernetes Deploy and manage Kubernetes with ease Scale and run applications with confidence Secure your Kubernetes environment Accelerate containerized application development Work how you want with open-source tools & APIs Set up CI/CD in a few clicks
17. Increase agility with containers on demand Secure applications with hypervisor isolation Run containers without managing servers Azure Container Instances (ACI) Easily run containers on Azure without managing servers
18. Azure Container Apps
19. Using AKS
20. Azure Kubernetes Service (AKS) Deploy a Kubernetes cluster in Azure: Create a resource group: az group create Create AKS cluster : az aks create Connect to cluster az aks get-credentials Run the application! @annietalvasto 29 @annietalvasto 29 @annietalvasto 29 @AnnieTalvasto
21. Azure Kubernetes Service (AKS) How to scale a cluster? To see the number and state of pods: kubectl get pods To manually change: kubectl scale --replicas=5 deployment/azure-vote-front Verify with: kubectl get pods Automation: use cluster autoscaler! @annietalvasto 30 @annietalvasto 30 @annietalvasto 30 @AnnieTalvasto
22. Azure Kubernetes Service (AKS) How to upgrade a cluster? Part 1 Find out: az aks get-upgrades Example: az aks get-upgrades --resource-group myResourceGroup --name myAKSCluster --output table When you can upgrade: Name ResourceGroup MasterVersion Upgrades ------- --------------- --------------- -------------- default myResourceGroup 1.18.10 1.19.1, 1.19.3 If not: ERROR: Table output unavailable. Use the --query option to specify an appropriate query. Use --debug for more info. @annietalvasto 31 @annietalvasto 31 @annietalvasto 31 @AnnieTalvasto
23. Azure Kubernetes Service (AKS) How to upgrade a cluster? Part 2 To upgrade: az aks upgrade \ --resource-group myResourceGroup \ --name myAKSCluster \ --kubernetes-version KUBERNETES_VERSION Check with az aks show command: az aks show --resource-group myResourceGroup --name myAKSCluster -- output table @annietalvasto 32 @annietalvasto 32 @annietalvasto 32 @AnnieTalvasto
24. Deploying a .NET application to Kubernetes
25. Takes a few steps Andrew Lock blog series: o Part 1 - An Introduction to Kubernetes o Part 2 - Configuring resources with YAML manifests o Part 3 - An introduction to deploying applications with Helm o Part 4 - Creating a Helm chart for an ASP.NET Core app o Part 5 - Setting environment variables for ASP.NET Core apps in a Helm chart o Part 6 - Adding health checks with Liveness, Readiness, and Startup probes o Part 7 - Running database migrations when deploying to Kubernetes o Part 8 - Running database migrations using jobs and init containers o Part 9 - Monitoring Helm releases that use jobs and init containers o Part 10 - Creating an 'exec-host' deployment for running one-off commands o Part 11 - Avoiding downtime in rolling deployments by blocking SIGTERM o Part 12 - Tips, tricks, and edge cases @annietalvasto 34 @annietalvasto 34 @annietalvasto 34 @AnnieTalvasto
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27. Become the Hero
28. Building sustainable ecosystems for cloud native software The Cloud Native Computing Foundation (CNCF) hosts critical components of the global technology infrastructure. CNCF brings together the world9s top developers, end users, and vendors and runs the largest open source developer conferences. CNCF is part of the nonprofit Linux Foundation. @annietalvasto 37
29. CNCF map @annietalvasto 38
31. What is Helm? oPackage manager for Kubernetes oHomebrew, snap or chololatey for kubernetes oHelm maintainer: oPackage management: Tooling that enables someone who has knowledge of an application and a platform to package up an application so that someone else who has neither extensive knowledge of the aplication or the way it needs to be run on the platform can use it. @annietalvasto 40 @annietalvasto 40 @annietalvasto 40 @AnnieTalvasto
32. What are the benefits of Helm? oManage Complexity oEasy Updates oSimple Sharing oRollbacks @annietalvasto 41 @annietalvasto 41 @annietalvasto 41 @AnnieTalvasto
33. How is Helm used? oCharts oWhat are the prerequisites? o A Kubernetes cluster o Deciding what security configurations to apply to your installation, if any o Installing and configuring Helm. @annietalvasto 42 @annietalvasto 42 @annietalvasto 42 @AnnieTalvasto
34. Helm Demo: Easily deploy complex application (WordPress) to Kubernetes using a helm chart @annietalvasto 43 @annietalvasto 43 @annietalvasto 43 @AnnieTalvasto
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36. Linkerd oService mesh oUltralight, ultrafast, security-first service mesh for Kubernetes. oThe overall goal is to reduce mental overhead of having service mesh oWhat does it do? o Observability o Realiability o Security @annietalvasto 45 @annietalvasto 45 @annietalvasto 45 @AnnieTalvasto
37. What are the benefits of Linkerd? oThriving open source community oSimple, minimalist design oDeep Runtime Diagnostics oUltralight and ultra fast oInstalls in seconds with zero config oActionable service metrics @annietalvasto 46 @annietalvasto 46 @annietalvasto 46 @AnnieTalvasto
38. What is needed to use Linkerd: cat deployment.yml | linkerd inject - | kubectl apply -f - @annietalvasto 47 @annietalvasto 47 @annietalvasto 47 @AnnieTalvasto
40. What is Keda? oDefault Kubernetes Scaling is not well suited for event driven applications, kubernetes is more for resource based scaling (CPU and memory). oKeda: Event driven scale controlling that can run inside any kubernetes cluster. oYou can install it into new or existing clusters. @annietalvasto 49 @annietalvasto 49 @annietalvasto 49 @AnnieTalvasto
41. What are the Keda principles? oNot rebuilding anything that Kubernetes offers out of the box. oSingle purpose, simple, non-intrusive. oWorks with any container and any workload @annietalvasto 50 @annietalvasto 50 @annietalvasto 50 @annietalvasto 50 @AnnieTalvasto
42. Demo KEDA: Scaling .NET Core worker with Azure Service Bus @annietalvasto 51 @annietalvasto 51 @annietalvasto 51 @AnnieTalvasto
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44. What is Flux? oWhat is GitOps? Kubectl apply Kubectl set image Helm upgrade Kubectl upgrade -> git push GitOps provides one model for making infrastructure, apps and Kubernetes add-on changes, you have consistent end-to-end workflow across your entire organization oWhy is Flux great for GitOps? @annietalvasto 53 @annietalvasto 53 @annietalvasto 53 @annietalvasto 53 @AnnieTalvasto
45. Flux practices & benefits Defined GitOps practices: o1) Describe your system declaratively o2) Keep configuration under source control o3) Use software agents to reconcile and ensure correctness and alert for drfit Benefits o Collaboration on infra o Access Control o Auditable History o Drift Correction o Clear boundaries between dev-team and kubernetes @annietalvasto 54 @annietalvasto 54 @annietalvasto 54 @annietalvasto 54 @AnnieTalvasto
46. CNCF helps you along the way @annietalvasto 59
47. o Azure Docs Resourcews o https://docs.microsoft.com/en-us/azure/aks/kubernetes- walkthrough o https://docs.microsoft.com/en-us/azure/aks/tutorial- kubernetes-scale?tabs=azure-cli o https://docs.microsoft.com/en-us/azure/aks/cluster-autoscaler o https://docs.microsoft.com/en-us/azure/aks/upgrade-cluster o Kubernetes for .NET Developers - Hossam Barakat o https://www.youtube.com/watch?v=uh4V2IjSrlI o Deploying ASP.NET Core applications to Kubernetes - Part 1 o https://andrewlock.net/deploying-asp-net-core-applications-to- kubernetes-part-1-an-introduction-to-kubernetes/ o Project Tye o https://github.com/dotnet/tye o Workshop: o https://docs.microsoft.com/en-us/learn/modules/aks- workshop/ o Cncf yYoutube - https://www.youtube.com/channel/UCvqbFHwN- nwalWPjPUKpvTA o Techworld with Nana - https://www.youtube.com/channel/UCdngmbVKX1Tgre699- XLlUA o Links and slides: github.com/annietalvasto Learn more @annietalvasto 61 @annietalvasto 61 @annietalvasto 61 @AnnieTalvasto
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49. Thank you! @annietalvasto 63 @annietalvasto 63 @annietalvasto 63 @AnnieTalvasto