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Wednesday, October 11 • 11:45am - 12:30pm
What's in a Name? Scaling ENC with DNS – Cameron Nicholson, Apple, Inc

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Are you frustrated with your External Node Classifier performance? Do you have gnarly regexes in your nodes.pp controlling what gets applied where? Maybe you’re just looking to see what others are doing to keep their ENC performant at global scale. Join me to see how Hiera, Facter, and DNS can classify your nodes with easily-understood, highly flexible naming schemes. If you can scale DNS then you can scale your ENC performance for free. I’ll show you how to design and implement name-based classification schemes to work with any existing environment. Anticipating a green field deployment? I’ll cover how to avoid painting yourself into corners with your classification choices. There are two hard problems: Cache invalidation and naming things. This presentation tackles both head-on.

avatar for Cameron Nicholson

Cameron Nicholson

System Administrator / Engineer, Apple, Inc
Cameron enjoys working with global scale infrastructure and the automation required to manage it while retaining a modicum of sanity. He's been a Puppet fanatic since his first PuppetConf back in 2012 and considers hand-hacks and one-offs anathema. He is firmly in the all-things-must-be-automated... Read More →

Wednesday October 11, 2017 11:45am - 12:30pm PDT
Track 3: Franciscan Ballroom