Intro to Kubernetes 1.0 - Server Side Engineering Meetup, Portland ME

Kubernetes is a wonderful open source PaaS system from Google and others. The introductory talk describes the ecosystem as of July 2015, and highlights strengths and weaknesses of Kubernetes 1.0

Transcript

1. Intro to Kubernetes Elliot Murphy, http://kindlyops.com Photos from https://unsplash.com/license
2. Image from kubernetes.io
3. An Open Source PaaS • open source orchestration system for Docker containers. • Platform as a Service • Run your own Heroku • 12 Factor App • 12factor.net
5. Competition • Heroku • CloudFoundry • Joyent Smart Data Center • Amazon EC2 Container Service • Ericsson / Apcera Cloud OS • Google App Engine • Engine Yard Deis, Flynn, others
6. kubernetes is THE PaaS
7. Complements • AWS • Azure • Google Cloud Platform (IaaS) • RedHat OpenShift • Digital Ocean • Mesos • Rackspace, OpenStack
8. Containers • 1979 Unix V7 chroot http://pivotal.io/platform-as-a-service/infographic/moments-in-container-history • 1965 IBM 1401 virtualized on System 360 https://www.joyent.com/developers/videos/ docker-and-the-future-of-containers-in-production • 2000 FreeBSD Jails • 2004 Open Solaris Zones • 2007 Cgroups in Linux Kernel • 2011 LMCTFY • 2013 Docker • 2015 Open Container Spec / AppC
9. Kubernetes 1.0 today http://kubernetes.io
10. Whats Great • Deploy into AWS VPC or Google Compute Engine means you can finally use PaaS in highly regulated industries (HIPAA, PCI, etc) • Seamlessly use same Docker images you already have • Zero-effort deploy in Google Compute Engine (also Tectonic) • Doesn’t force entire app to migrate at once, excellent support for external services: CloudSQL, RabbitMQ, … • Kubelet / Container-Optimized Server • Debugging - csysdig • CoreOS / Debian / CentOS
11. Whats Not Great • Advanced Network use cases: UDP, massive port ranges (use cases being worked on now) • Network ACLs • Visual tools • Monitoring (getting there)
12. If you deploy your own • Log collection (fluentd/ elasticsearch) • Monitoring (cadvisor, sysdig, NewRelic) • Blob Storage (S3, Swift) • Block Storage (EBS, Ceph) • Private Container Registry • Load balancers / Firewalls • HDFS, DB, Queues, Streams
13. Terms you need • Replication Controller, Pod • Service, ExternalService, Endpoint • Volume, SecretVolume • Master, Node
14. How to run your own k8s • Fastest: Google Compute Platform 1 click deploy • Laptoppiest: http://j.mp/k8s-laptop • Custom: Salt, Ansible, CloudFormation scripts to deploy on EC2, DigitalOcean, etc • Tectonic
15. Demo + Questions elliot@kindlyops.com @sstatik