KubeCon Europe 2017: Running Workloads in Kubernetes

The slides of my talk at KubeCon Europe 2017. In this talk, I gave an overview of built-in controllers in Kubernetes. The intended audience is Kubernetes beginners.

https://medium.com/google-cloud/running-workloads-in-kubernetes-86194d133593

Transcript

1. Running Workloads in Kubernetes Janet Kuo, Software Engineer, Google
2. https://goo.gl/dWYJq4
3. https://goo.gl/2NLT0f VP of Software Architecture @Spire.
4. Concept | Kubernetes: a platform for application patterns | Pod: a single instance of an application in Kubernetes | Controller: manages replicated pods for an application pattern
5. Master node Worker node Worker node
6. Master node Worker node Worker node Pod Container Container Pod Container Container
7. Master node Worker node Worker node Pod Container Container Pod Container Container C
8. 4 Common, General Patterns | Stateless | Stateful | Daemon | Batch
9. 4 Common, General Patterns | Stateless: web frontends, web servers | Stateful | Daemon | Batch
10. 4 Common, General Patterns | Stateless: web frontends, web servers | Stateful: databases, message queues | Daemon | Batch
11. 4 Common, General Patterns | Stateless: web frontends, web servers | Stateful: databases, message queues | Daemon: logs collection, node monitoring | Batch
12. 4 Common, General Patterns | Stateless: web frontends, web servers | Stateful: databases, message queues | Daemon: logs collection, node monitoring | Batch: processing of independent work items
13. Stateless: Deployment | Availability | Scale, Deploy, Rolling Update | e.g. Web apps, mobile backends, API servers, ...
14. Master node Worker node Worker node Pod Container Container Pod Container Container Service C async Demo: github.com/janetkuo/k8s-demos/tree/master/dep
15. Stateful: StatefulSet | Consistency | Stable identity and state | Ordered deployment, scaling, deletion | e.g. Databases, caches, message queues, ...
16. Master node Worker node Worker node Pod 0 Container Container Pod 1 Container Container Service C async Demo: github.com/janetkuo/k8s-demos/tree/master/stateful
17. Daemon: DaemonSet | One per node | Node labels | e.g. Logs collection daemon, node monitoring daemon, ...
18. Master node Worker node Worker node Pod Container Container Pod Container Container Service C async Demo: github.com/janetkuo/k8s-demos/tree/master/ds
19. Batch: Jobs | Parallel + Complete | Related but independent work | e.g. Emails to send, frames to render, ...
20. Master node Worker node Worker node Pod Container Container Pod Container Container C async Demo: github.com/janetkuo/k8s-demos/tree/master/jobs
21. Recap | Stateless: Deployment; availability | Stateful: StatefulSet; consistency | Daemon: DaemonSet; one per node | Batch: Job; parallel to completion
22. Where do I start? | Helm: The Kubernetes Package Manager github.com/kubernetes/helm | Helm Charts: Curated applications for Kubernetes github.com/kubernetes/charts
23. How do I customize? | Kubernetes is extensible! | Write your own controllers | e.g. github.com/upmc-enterprises/elasticsearch-operator github.com/coreos/etcd-operator
24. Kubernetes is Open github.com/kubernetes/kubernetes kubernetes.io slack.k8s.io / @janet @kubernetesio / @janet_kuo