Upcoming SlideShare
Introduction to Kubernetes
- 1. September 27, 2016 Introduction to Kubernetes Ross Kukulinski @RossKukulinski
- 2. ©2016 NodeSource @RossKukulinski Welcome 2 Ross Kukulinski Product Manager @ NodeSource Node.js Evangelism WG Introduction to CoreOS - O’Reilly Media
- 3. ©2016 NodeSource @RossKukulinski3 Welcome Today’s Roadmap • Container Orchestration • Kubernetes 101 • DEMO FOR THE DEMO GODS
- 4. ©2016 NodeSource @RossKukulinski4
- 5. ©2016 NodeSource @RossKukulinski Container Orchestration 5
- 6. ©2016 NodeSource @RossKukulinski6 If your architecture looks like this Manage your containers with Ansible, Docker Swarm, ECS, etc.
- 7. ©2016 NodeSource @RossKukulinski7 If your architecture looks like this You need orchestration help
- 8. ©2016 NodeSource @RossKukulinski8 Orchestration Overview Container Orchestration • Schedule containers to physical machines • Restart containers if they stop • Provide private container network • Scale up and down • Service discovery
- 9. ©2016 NodeSource @RossKukulinski Kubernetes 101 9
- 10. ©2016 NodeSource @RossKukulinski Kubernetes is an open source system for automating deployment, scaling, and management of containerized applications Kubernetes 101 10
- 11. ©2016 NodeSource @RossKukulinski11 Kubernetes 101 Kubernetes Orchestration • Schedules containers to physical machines • Service discovery & load balancing • Horizontal application scaling • Automated rollouts & rollbacks • Secret and configuration management • Storage orchestration • … and a whole lot more!
- 12. ©2016 NodeSource @RossKukulinski Kubernetes Nomenclature 12
- 13. ©2016 NodeSource @RossKukulinski13 Kubernetes 101 Terminology - Nodes • Is a worker machine in Kubernetes • Node may be a VM or a physical machine • Each Node has the services necessary to run Pods
- 14. ©2016 NodeSource @RossKukulinski14 Kubernetes 101 Terminology - Pods • Smallest deployable units of computing • Group of one or more containers • Containers within Pod share a cluster-accessible IP address (and localhost) • Containers within a Pod have access to shared volumes
- 15. ©2016 NodeSource @RossKukulinski15 Kubernetes 101 Terminology - Replica Sets • Ensures that a specified number of Pod “replicas” are running at one time • If there are too many, it will kill some Pods • If there are too few, it will start more
- 16. ©2016 NodeSource @RossKukulinski16 Kubernetes 101 Terminology - Deployments • Provides declarative updates for Pods/Replica Sets • Manages one or more Replica Sets • Primary mechanism for interacting with Pods! • Automated rollouts and rollbacks :)
- 17. ©2016 NodeSource @RossKukulinski17 Kubernetes 101 Terminology - Services • An abstraction which defines a logical set of Pods • Provides a mechanism for accessing them • 3 Types: ClusterIP, NodePort, LoadBalancer
- 18. ©2016 NodeSource @RossKukulinski Let’s play with Kubernetes right now! 18
- 19. ©2016 NodeSource @RossKukulinski github.com/rosskukulinski/docker-philly 19
- 20. Thank you. Ross Kukulinski ross@nodesource.com @RossKukulinski
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