More Related Content
What's hot
What's hot (20)
Similar to Docker&kubernetes
Similar to Docker&kubernetes (20)
Recently uploaded
Recently uploaded (20)
Docker&kubernetes
- 2. @Laura_Morillo@Laura_Morillo ● Twitter: @laura_morillo ● GDG Madrid Organizer, WTM Lead ● Startup lover. ● Backend developer at Seedtag. ● Google Developer Expert (Cloud) ● +10 years working with different technologies.
- 10. @Laura_Morillo Node.js Container for Staging Container for Production Dockerfile Docker Repository (images) (containers)
- 13. @Laura_Morillo
- 14. @Laura_Morillo Kubernetes: cluster Cluster Node 1 (VM or physical machine) Node 2 (VM or physical machine) Node 3 (VM or physical machine)
- 15. @Laura_Morillo@Laura_Morillo Pods Node.js Redis ● Smallest unit ● Contains one or more containers ● Volumes for persistence ● Ephemeral entities ● One IP per pod ● You shouldn’t create them directly Volumes
- 16. @Laura_Morillo@Laura_Morillo Deployments ● Drive current state toward desired state V1 V1
- 18. @Laura_Morillo Deployments kubectl apply -f my-deployment.yaml
- 20. @Laura_Morillo Deployments Redis V1 My Image V1 Redis V1 My Image V1 Cluster Node 1 Node 2 Node 3
- 21. @Laura_Morillo Deployments Redis V1 My Image V1 Redis V1 My Image V1 Cluster Node 1 Node 2 Node 3
- 22. @Laura_Morillo@Laura_Morillo Services ● Defines a logical set of pods and a policy to access them Redis V1 My Image V1 Redis V1 My Image V1 Nginx V1 Service
- 24. @Laura_Morillo Services: ClusterIP Redis V1 My Image V1 Redis V1 My Image V1 Cluster Node 1 Node 2 Nginx V1 my-node-app-service nginx-service
- 25. @Laura_Morillo Services: ClusterIP Redis V1 My Image V1 Redis V1 My Image V1 Cluster Node 1 Node 2 Nginx V1 Error! my-node-app-service nginx-service
- 26. @Laura_Morillo Services: LoadBalancer Public IP: Ej: 123.45.678.9
- 27. @Laura_Morillo Services: LoadBalancer Redis V1 My Image V1 Redis V1 My Image V1 Cluster Node 1 Node 2 Nginx V1 IP: 123.45.678.9 my-node-app-service nginx-service
- 29. @Laura_Morillo@Laura_Morillo Deployments ● Controls new versions ● Rollback to previous versions ● Update strategy V1 V2 Deployment
- 31. @Laura_Morillo Deployments: RollingUpdate Redis V1 My Image V1 Redis V1 My Image V1
- 34. @Laura_Morillo Deployment: RollingUpdate Redis V1 My Image V1 Redis V1 My Image V1 Redis V1 My Image V2
- 35. @Laura_Morillo Deployment: RollingUpdate Redis V1 My Image V1 Redis V1 My Image V1 Redis V1 My Image V2
- 36. @Laura_Morillo Deployment: RollingUpdate Redis V1 My Image V1 Redis V1 My Image V1 Redis V1 My Image V2 Redis V1 My Image V2
- 37. @Laura_Morillo Deployment: RollingUpdate Redis V1 My Image V1 Redis V1 My Image V1 Redis V1 My Image V2 Redis V1 My Image V2
- 39. @Laura_Morillo@Laura_Morillo HorizontalPodAutoscaler ● Scales the number of pods from a deployment ● At the moment, only based on the CPU utilizationRedis V1 My Image V2 HorizontalPodAutoescaler: From 2 to 10 Redis V1 My Image V2 Min 2 Redis V1 My Image V2 Max 10 1 2 10
- 41. @Laura_Morillo Summary ● Kubernetes is a cluster manager that helps us to: ○ Deploy our applications from Docker containers ○ Structure our application with microservices ○ Connect the different microservices ○ Provide external access to our services ○ Scale our infrastructure when we need it ○ And more!