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OpenStack Magnum at CERN

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Title
OpenStack Magnum at CERN
Subtitle
Scaling container clusters to thousands of nodes
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611
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CC Attribution 2.0 Belgium:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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Production Year2017

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Abstract
Magnum is an OpenStack service offering Container Clusters as a service, withsupport for Docker Swarm, Kubernetes, Mesos or DC/OS. Users of the service candeploy clusters of thousands of nodes in minutes, and access them securelyusing their native APIs. In the first part of this talk we introduce the Magnum service. We present itsbasic and more advanced features, including support for heterogeneousclusters, cluster upgrades, cluster drivers and the ongoing effort to make itrock solid. Next, you can get idea if how Magnum is integrated in CERN’s cloudinfrastructure. How it started as a pilot service, the efforts done to addmissing features and how CERN’s users benefit from it. CERN’s use casesinclude end user physics analysis, web services, continuous integration,infrastructure services and more. Finally, such a complex service needs to be tested and benchmarked in depth,so the last section includes the results of a series of tests done in CERNcloud infrastructure and the CNCF testing infrastructure scaling the differentcontainer orchestration engines to thousands of nodes. Specifically, we reportresults of running several thousand containers in Kubernetes and scaling aservice to millions of requests a second.