For 25 years Bret has built and operated distributed systems as a Sysadmin, and helped over 30,000 people learn dev and ops topics. He is a Docker Captain, the author of the wildly popular Docker Mastery series on Udemy, and also provides DevOps style consulting and live workshops with a focus on immutable infrastructures, containers, and orchestration. Bret's an occasional shell and web, and JavaScript developer. He spends his free time in Virginia's local, thriving tech scene helping lead local Code for America and Docker Meetups. Bret basically spend his days helping people, and giving high fives. He lives at the beach, writes at bretfisher.com, prefers dogs over cats, and tweets at @bretfisher