Azure Kubernetes Service (AKS) - Part 3 Orchestration using Kubernetes - Minikube Nilesh Gule 

$whoami { “name” : “Nilesh Gule”, “title” : “Architect | Microsoft Azure MVP”, “website” : “https://www.HandsOnArchitect.com", “github” : “https://github.com/NileshGule" “twitter” : “@nileshgule”, “linkedin” : “https://www.linkedin.com/in/nileshgule”, “email” : “[email protected]", “likes” : “Technical Evangelism, Cricket” } 

AKS learning series - Part 4 - Deploy Multi- container apps to managed Kubernetes with Azure kubernetes Service (AKS) - Part 5 - Debugging & Monitoring AKS using OMS - Part 6 - CI CD with Docker & Kubernetes (Bonus) - Part 1 - Getting started with Docker - Part 2 - Stitch Multi-container apps with Docker Compose - Part 3 - Container Orchestration using Kubernetes with Minikube 

Application Overview 

Recap - part 1 (Docker) - https://www.youtube.com/watch?v=fQvmGm8Z85E 

Recap - part 2 (Docker Compose) - https://www.youtube.com/watch?v=crjRSvPVIlE 

Container Orchestration 

Need for Orchestration • Deploy Multi-container apps • Scale containerized apps • Roll out new versions of apps without downtime • Provide networking, service discovery and storage • Manage resources across multiple containers • Self healing 

DEMO
 
 Minikube & Kubectl !9 

Kubernetes Open-source system for automating deployment, scaling, and management of containerized application across clusters of machines Basic Objects - Namespace - Pod - Volume - Service Controllers - ReplicaSet - Deployment - StatefulSet - DemonSet 

Kubernetes - Pod - Smallest unit of deployment - Group of one or more containers - Contains specification how to run container along with its related resources (storage / networking) 

Kubernetes - Deployment - Desired state definitions for pods and replica sets - Defines - version of container images - number of replicas - update strategy - Metadata to interact with resources 

DEMO
 
 Namespace, Deployment !13 

Node 2 Kubernetes - Service - Acts as Load Balancers for pods - Provides stable IP for consumers Node 1 TechTalksWeb Pod1 TechTalksAPI Pod2 Pod1 

Kubernetes - StatefulSet - Use StatefulSets when data loss is unacceptable - Useful when replicas are needed for availability or scalability, and the replicas need stable volume mounts across restarts - Often used when deploying database workloads that store their state on external storage providers - With StatefulSets a crash of pod or cluster does not result in data loss 

Kubernetes Control plane 

Kubectl commands 

References 1/2 ✴ Demo code - https://github.com/NileshGule/AKS-learning-series ✴ Kubernetes playground - https://labs.play-with-k8s.com ✴ Kubernetes objects on Azure - https://azure.microsoft.com/mediahandler/files/resourcefiles/243b3587-a5cd-4937- b52a-dc5bdc8a78e7/Kubernetes-objects-on-Azure.pdf ✴ Kubernetes Theme park analogy - https://danlebrero.com/2018/07/09/kubernetes-explained-in-pictures-the-theme- park-analogy/ ✴ The Illustrated children’s guide to Kubernetes - https://cdn.chrisshort.net/The-Illustrated-Childrens-Guide-to- Kubernetes.pdf ✴ Orchestrators - https://www.exoscale.com/syslog/container-orchestration/ ✴ Twelve Factor App - https://12factor.net ✴ Kubernetes Basics - https://kubernetes.io/docs/tutorials/kubernetes-basics/ ✴ Azure Kubernetes objects - https://msft.social/TIRUaN ✴ Kubernetes secrets - https://kubernetes.io/docs/concepts/configuration/secret/ ✴ Highly scalable apps - https://www.handsonarchitect.com/2018/03/highly-scalable-multi-container-apps.html ✴ 

References 2/2 ✴ Youtube Part 1 video - https://www.youtube.com/watch?v=fQvmGm8Z85E ✴ engineers.sg - https://engineers.sg/video/azure-container-service-aks-part-1-getting-started-with-docker-by-nilesh- gule--2732 ✴ Youtube Part 2 video - https://youtu.be/crjRSvPVIlE ✴ engineers.sg - https://www.engineers.sg/video/azure-kubernetes-service-aks-2-stitch-multi-container-apps-with- docker-compose--2814 ✴ Slide deck - Speakerdeck - ✴ Slide deck - Slideshare - ✴ 

Thank you very much https://github.com/NileshGule/AKS-learning-series Code with Passion and Strive for Excellence 

Q&A 

Feedback http://bit.ly/AKSPart3