Kubernetes 101

An introduction to containers and overview of Kubernetes - key definitions, concepts, and architecture.

Presented at Women Techmakers Berlin.

Transcript

1. Kubernetes 101 by Lora Vardarova
2. Who am I?
3. @LoraVardarova Awesome Agile Software Development
4. Containers
5. Containers: History XXXX Mid 2000s 2013 One application on one physical server Virtual Machines (VMs): multiple apps on a single server Hello Docker
6. VMs and Containers: Comparison Image credits: docs.docker.com vs.
7. Docker: Workflow build run Dockerfile Docker Image Docker Container
8. Next Steps
9. Further Resources: • Operating System Containers vs. Application Containers • Docker Documentation • 5 Docker Best Practices You Should Follow • Docker Cheat Sheet
10. Kubernetes
11. Kubernetes: History 20XX Mid 2014 21.07 2015 10.02 2018 Borg - Google’s cluster manager Kubernetes announced by Google Kubernetes v1.0 was released Kubernetes v1.9.3 was released
12. Kubernetes: In a Nutshell An open-source platform, designed to automate: • deploying, • scaling, • operating application containers. Source: kubernetes.io
13. Kubernetes: Origin
14. k8s
15. Kubernetes: Why should you choose it? Developer velocity Why is high velocity important? • Reduced risk • Cost efficiency • Security
16. Kubernetes: Container Orchestration
17. Architecture
18. Kubernetes: Design Principles • manage applications not machines • declarative • observe, rectify, and repeat (control loops)
19. etcd Kubernetes Master API Server Controllers kubelet kube-proxy docker Node Pod Container Pod Container kubelet kube-proxy docker Node Pod Container Pod Container Kubernetes Cluster = Labels = Service Scheduler
20. Next Steps
21. Further Resources: • Kubernetes Basics • Kubernetes 101: Pods, Nodes, Containers, and Clusters • The Tale of Kubernetes • Hello Minikube • Kubernetes The Hard Way
22. Lora Vardarova @LoraVardarova