OpenStackSV 2015 - Lachlan Evenson - Kubernetes OpenStack
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The document describes how Lithium deployed Kubernetes on OpenStack to improve their container strategy. It discusses how OpenStack provided a stable platform and bridged gaps in container support, while Kubernetes enabled a microservices approach and workload portability. Initially, Lithium ran a Kubernetes cluster on OpenStack VMs using static routing. They then utilized the OpenStack SDN, OpenContrail, to power Kubernetes networking. This allowed developers to access clusters and simplified application deployment, while Kubernetes' scheduler provided granular control over container placement. Going forward, Lithium hopes to leverage more OpenStack APIs to provide container storage and registry services.
OpenStackSV 2015 - Lachlan Evenson - Kubernetes OpenStack
- 1. Page 1AUGUST 2015AUGUST 2015Conference Organizer Decomposing Lithium’s monolith with Kubernetes and Openstack Lachlan Evenson | Team Lead, Cloud Platform Engineering, Lithium Technologies @LachlanEvenson openstacksv.com
- 2. Page 2AUGUST 2015 Page 2AUGUST 2015 Agenda Share how Lithium deployed Kubernetes on Openstack and hopefully provide a pattern that can be followed for your journey.
- 3. Page 3AUGUST 2015 Page 3AUGUST 2015 Here is what we didn’t want to happen
- 4. Page 4AUGUST 2015 Page 4AUGUST 2015 Why Kubernetes with Openstack • Openstack provides a stable platform to innovate. • Openstack bridged gaps in the container story. • Supports our microservice strategy. • Enables workload portability between public/private clouds. • Consistent development experience.
- 5. Page 5AUGUST 2015 Page 5AUGUST 2015 Where the rubber meets the road • Quick iteration PoC in July • Presented at Kubernetes v1 launch at OSCON • Cue Operation Fury Road
- 6. Page 6AUGUST 2015 Page 6AUGUST 2015 The honeymoon is over... • How do we get Kubernetes to Prod? • What does running Kubernetes and Openstack even look like? • How do we provide access?
- 7. Page 7AUGUST 2015 Page 7AUGUST 2015 Here’s what we did. • First iteration was Kubernetes cluster on Openstack VMs using static routing to deliver cluster connectivity. • This provided a cluster that developers can deploy apps to and network connectivity to allow external access to the cluster.
- 8. Page 8AUGUST 2015 Page 8AUGUST 2015 Bolting it all together
- 9. Page 9AUGUST 2015 Page 9AUGUST 2015 Great! Is that all? • How about we utilize the same SDN that powers our Openstack to run out Kubernetes networking? • Kubernetes cluster running on Openstack VMs using OpenContrail as the SDN.
- 10. Page 10AUGUST 2015 Page 10AUGUST 2015 Kubernetes on Openstack with OpenContrail
- 11. Page 11AUGUST 2015 Page 11AUGUST 2015 You’ve got your cluster. Now what? • How do you provide developer access to the cluster? • Where do you put your containers? • How do you monitor the cluster and containers within it?
- 12. Page 12AUGUST 2015 Page 12AUGUST 2015 As promised • Here’s how I built it • http://bit.ly/k8s-openstack • http://bit.ly/k8s-contrail
- 13. Page 13AUGUST 2015 Page 13AUGUST 2015 Here’s what we’ve learned • Kubernetes clusters are lightweight. • Getting to Kubernetes makes your container journey easier. • Simplifies complex application deployment. • Scheduler allows granular control over where and how containers are run in the cluster.
- 14. Page 14AUGUST 2015 Page 14AUGUST 2015 Wish List • I would like to use Openstack APIs to provide networking, storage, images. • Provide persistent container storage via Cinder. • Make Glance/Swift a container registry. • Container registry as a service. • Excited to get my hands on Magnum!
- 15. Page 15AUGUST 2015 Page 15AUGUST 2015 Questions?
- 16. Page 16AUGUST 2015 Page 16AUGUST 2015 Thank you For your time