Rewriting DevOps
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Six years is a long time to put up with a stack, a Senator, or an Ops approach. Craftsy has been working on a full rewrite of their core systems, and is reworking DevOps along the way. DevOps sounds good, but how do you bridge the material gap in skills and experience to bring Ops to dev, and dev to Ops? With iteration, humor, tools, and an open acceptance of failure. Matthew Boeckman, VP - Infrastructure at Craftsy
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It’s time to revisit your established beliefs surrounding failure scenarios, with an emphasis not on the “who” in decision making but instead on the “why” behind those decisions. With attention to growth mindset, you can encourage your teams to reject shallow explanations of human error for said failures and focus on how to gain greater understanding of these complexities and push the boundaries on what you believe to be static, unchanging context outside your sphere of influence.
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Rewriting DevOps
- 3. HEADLINE SPONSORS PARTNER SPONSORS MEMBER SPONSORS Guiceworks Cooley Bridgepoint Education Full Contact General Assembly Dripjoy Lyft OnDeck Connect for Health Wazee Digital Officescapes Jake Jabs Center for Entrepreneurship Denver Office of Economic Development Alchemy Security Ayla Networks Edge link Swift page Taxnologi Spotx Davis Graham & Stubbs Documoto Right point Name.com The Denver Foundation Boomtown Six Actual Maker Source Slider Smith & Frampton Netsuite Logistical Meetings & Events
- 4. Rewriting DevOps Matthew Boeckman VP - Infrastructure Craftsy @matthewboeckman
- 5. This is not a DevOps definition ●Common Tooling ●Organizational Empathy ●Shared Responsibility
- 6. Why Rewrite? 1. Support new business initiatives 2. Scale and resilience 3. Quicker iterations
- 7. #30 on Forbes' 2015 list of Most Promising Companies 10+MM registered members, 11+MM enrolled courses 350 course enrollments/hour
- 11. DevOps 1.0 ● Some Ops dev’d, and a few Devs Ops’d ● Great cross team culture, still separate teams ● Shared Oncall but heavy Ops burden ● Limited common tooling
- 12. DevOps 2.0 goals ● Integrated DevOps team and workflows ● Common tools ● Shared Oncall
- 16. Common Tooling
- 18. Common Tools Jenkins (build, deploy, ETL, scheduled tasks) Terraform (infrastructure configuration) Splunk (data intelligence) AWS (all infrastructure)
- 24. "Fundamentally, it's what happens when you ask a software engineer to design an operations function." Ben Treynor Sloss, Vice President, Google Engineering, founder of Google SRE
- 25. SRE Phase 1 (Feb-May) ● Determine tooling ○ Nagios, graphite, splunk, confluence ● SWAG at reliability metrics ○ Errors; response time ● Runbooks ● Blameless Postmortem every outage ● Iterate
- 26. The primary hurdle to DevOps and SRE adoption is The Skill Gap
- 27. Runbooks: ● System overview ● Escalation path ● Alert descriptions ● Common failure conditions ● Known recovery procedures ● Incident history
- 28. Postmortem - 7 W’s and an H 1. What (happened) 2. What (systems were impacted) 3. When (did it occur) 4. Who (was involved) 5. How (did we discover the issue) 6. Why (did it go explody) 7. What (will we do to remedy it) 8. When (will that remedy be actioned)
- 29. Having a “blameless” Post-Mortem process means that engineers whose actions have contributed to an accident can give a detailed account of: what actions they took at what time, what effects they observed, expectations they had, assumptions they had made, and their understanding of timeline of events as they occurred. …and that they can give this detailed account without fear of punishment or retribution *John Allspaw, CTO - Etsy https://codeascraft.com/2012/05/22/blameless-postmortems/
- 32. Shared Responsibility Empathy drives action Common tools and Runbooks bridge the skills gap Postmortems direct iterations
- 34. SRE Phase 2 (May-> … forever) ● Build a production environment ● Tune reliability metrics ● Load tests ● Resilience tests ● Recovery tests ● Blameless Postmortem every outage ● Runbooks ● Iterate
- 36. Fastly - Content Delivery F5 & ELB - load balancing FE - Node.js BE - Java Packer - AMI’s Consul - service discovery Terraform - Infrastructure Postgres/RDS - database SQS/SNS/Lambda/S3 - everything else
- 37. SRE - Two metrics Mean Time to Identify Mean Time to Resolve
- 38. DevOps + SRE T-18 days 3 hours …
- 39. This is not a DevOps definition approach ●Common Tooling ●Organizational Empathy ●Shared Responsibility ●Land and expand ●Start with pre-prod and grow