Container Orchestration using Kubernetes

The slide deck was used during the Azure user group meet up on 16th August 2018. It is part of Hands on Lab for learning Azure Kubernetes Service. The talk demonstrated usage of Minikube to test Kubernetes manifest files using a single node cluster. The features covered as part of hands on demo included Namespaces, Pods, Deployment, Service, StatefulSets.

Transcript

1. Azure Kubernetes Service (AKS) - Part 3 Orchestration using Kubernetes - Minikube Nilesh Gule
2. $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” : “nileshgule@gmail.com", “likes” : “Technical Evangelism, Cricket” }
3. 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
4. Application Overview
5. Recap - part 1 (Docker) - https://www.youtube.com/watch?v=fQvmGm8Z85E
6. Recap - part 2 (Docker Compose) - https://www.youtube.com/watch?v=crjRSvPVIlE
7. Container Orchestration
8. 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
9. DEMO
 
 Minikube & Kubectl !9
10. 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
11. 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)
12. 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
13. DEMO
 
 Namespace, Deployment !13
14. Node 2 Kubernetes - Service - Acts as Load Balancers for pods - Provides stable IP for consumers Node 1 TechTalksWeb Pod1 TechTalksAPI Pod2 Pod1
15. 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
16. Kubernetes Control plane
17. Kubectl commands
18. 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 ✴
19. 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 - ✴
20. Thank you very much https://github.com/NileshGule/AKS-learning-series Code with Passion and Strive for Excellence
21. Q&A
22. Feedback http://bit.ly/AKSPart3