The document presents a case study of how Lithium Technologies deployed Kubernetes on OpenStack, detailing their approach to managing production environments. It outlines the setup of a Kubernetes cluster on OpenStack VMs with external access and the integration of OpenContrail for networking. Key lessons learned emphasize the lightweight nature of Kubernetes clusters and the simplification of application deployment.

1. AUGUST 2015AUGUST 2015Conference Organizer
Decomposing Lithium’s
monolith with Kubernetes
and Openstack
Lachlan Evenson | Team Lead, Cloud Platform Engineering, Lithium
Technologies
@LachlanEvenson
openstacksv.com

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Agenda
Share how Lithium deployed Kubernetes on Openstack and
hopefully provide a pattern that can be followed for your
journey.

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Where the rubber meets the road
• Quick iteration PoC in July
• Presented at Kubernetes v1 launch at OSCON
• Cue Operation Fury Road

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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?

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Here’s what we did.
• A cluster that developers can deploy apps to and network
connectivity to allow external access to the cluster.
• Kubernetes cluster on Openstack VMs.
• Static routing between the nodes in the cluster.

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Bolting it all together

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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.

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Kubernetes on Openstack with OpenContrail

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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?

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As promised
• Here’s how I built it
• http://bit.ly/k8s-openstack
• http://bit.ly/k8s-contrail

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Here’s what we’ve learned
• Kubernetes clusters are lightweight.
• Getting to Kubernetes makes your container journey easier.
• Simplifies complex application deployment.
• Consistent development experience.

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Wish List
• I would like to use Openstack APIs to provide networking,
storage, images.
• Provide persistent container storage via Cinder
• Make Glance a container registry

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Questions?

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Thank you
For your time