OpenStack and Containers

Lachlan EvensonTeam Lead, Cloud Platform – Lithium Technologies@LachlanEvenson

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AGENDA

Share how Lithium deployed Containers on OpenStack and hopefully provide a pattern that can be followed for your journey.

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OUR JOURNEY TO CONTAINERS

• Cloud-platform running on OpenStack and AWS

• Microservices• DevOps

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WHY CONTAINERS AND OPENSTACK?

• OpenStack provides a stable platform to innovate.

• OpenStack bridged gaps in the container story.

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HERE’S WHAT WE DIDN’T WANT TO HAPPEN

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THE RIGHT TECHNOLOGY AT THE RIGHT TIME

• No one ever got fired for running VMs• Who doesn’t love whales?• You know your work loads• There isn’t a problem. Why are we doing

this?

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THE CONTAINER VALUE PROP

• Developer productivity• Portable• Multi-cloud deployments• Lightweight orchestration

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CONTAINER STRATEGY

Incremental revolution!

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CONTAINER STRATEGY

• Leave the monolith alone• Staying in the “success zone”• Overlay container orchestration on

OpenStack and AWS• Had to address container security

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BUILDING CLOUD-NATIVE APPLICATIONS

• Containers demanded a change in thinking• Tooling• Standardized deployments

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CURRENT STATE OF PLAY

• Kubernetes on OpenStack• Standard microservice deployment pipeline• Moving workloads - The big payoff is coming• CI/CD pipeline overhaul• Multi-cloud• Happy Developers

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HERE’S HOW WE DID IT

• 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.

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BOLTING IT ALL TOGETHER – STATIC ROUTING

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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.

• http://superuser.openstack.org/articles/kubernetes-and-openstack-multi-cloud-networking

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KUBERNETES ON OPENSTACK WITH OPENCONTRAIL

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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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FUTURE STATE

• Containerize all the things?• Stick with Docker?• Libnetwork/CNI?• Persistent storage?• Kubernetes, Mesos?• PaaS? OpenShift?

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DEAD BODIES

• The Docker problem• Workflow disruption• Complexity shifts back to Ops

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OPENSTACK AND CONTAINERS

• Magnum• Kuryr

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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/Swift a container registry.• Container registry as a service.

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DEMO

• Hope this works.

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THANKS!

• Questions?