Microservices Manchester: Microservices from 30,000ft by Daniel Bryant
The technology changes required when implementing a microservice-based application are only one part of the equation. The business and organisation will also most likely have to fundamentally change. In an ideal world, this shouldn’t be a problem – what with the rise of agile, lean and DevOps – but this is not always the situation Daniel encounters in his consulting travels. He would like to share with you some stories of successful (and not so successful) strategies and tactics he has used over the past four years when introducing service-oriented architecture into organisations. Join Daniel for a whistle-stop tour of the business and technical people challenges that he has experienced first hand when implementing a greenfield microservice project, and also breaking down a monolith. You will discover ‘divided companies’ vs ‘connected companies’, determine the actual impact of Conway’s Law on architecture and operations, briefly touch on the lean startup/enterprise mindset, dive into change management without the management double-speak, and look at the lightweight processes needed to ensure the technical success of a microservices implementation. About Daniel Bryant Daniel is Chief Scientist at OpenCredo having joined the company in 2014. Daniel is responsible for leading engagements for OpenCredo at a number of organisations. He specialises in enabling agility within organisations, creating and leading effective software delivery teams while maximising the impact of software delivery.
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Microservices Manchester: Microservices from 30,000ft by Daniel Bryant
- 1. Microservices from 30,000ft: Organisation, architecture and (Dev)Operations Daniel Bryant @danielbryantuk daniel.bryant@opencredo.com www.opencredo.com
- 5. 1. Lets start with a Story... OpENCREDO Went Skiing 05/07/2016 @danielbryantuk
- 6. 1. Lets start with a Story... OpENCREDO Went Skiing 05/07/2016 @danielbryantuk
- 8. @danielbryantuk • London Java Community Associate • Adopt OpenJDK and JSR • InfoQ Editor, DZone MVB, Voxxed 05/07/2016 @danielbryantuk • Chief Scientist at OpenCredo ü Transforming business through tech and teams ü Java, Golang, CI/CD, DevOps ü Microservices, cloud, containers
- 9. 2. Organisation: Conway was telling the truth... 05/07/2016 @danielbryantuk
- 11. Cross-functional Teams • Spotify (bit.ly/1C46ZKo) – Culture • Amazon (bit.ly/1F3Dgkm) – Communication • Gilt (gi.lt/1rgyWvO) – Strategic alignment 05/07/2016 @danielbryantuk
- 12. A Word of Caution • Divided Companies – Traditional ‘enterprise’ organisation – Command and control, specialised, division of labour – Predictable in stable environments – Six sigma, ESBs, and classical SOA • Connected Companies – Startups and forward-thinkers – Autonomous, fractal, service-focused – Adaptive in uncertain environments – Agile/lean, REST, and microservices 05/07/2016 @danielbryantuk
- 14. Organisational Values small inter-discipline teams over large homogeneous cabals products over projects user impact over customer requirements creating verifiable incremental value over adding features incremental transformationover big-bang “re-org” 05/07/2016 @danielbryantuk
- 15. 3. Architecture: think Micro, Think Macro, Think LEADERSHIP 05/07/2016 @danielbryantuk
- 20. Architecture, Minus the Ivory Towers • Technical leadership (bit.ly/1EUwpLl) • Communication (bit.ly/1Ia3u8o) • Empathy • ‘Just enough’ up front design 05/07/2016 @danielbryantuk
- 21. Migrating Architecture • Find seams • Measure toxicity of code • Standardisewhat matters (glue/infra) • Patterns (bit.ly/1GRch2v) – Big bang – Change via copy/extraction – Strangle 05/07/2016 @danielbryantuk
- 24. Architectural Values multiple cohesive services over a comprehensive application bounded contexts over a single domain model autonomous goal-driven leadership over anarchy or command and control implementing signals and performance indicators over measuring vanity metrics 05/07/2016 @danielbryantuk
- 25. 4. Operations: Automate everything (except the people) 05/07/2016 @danielbryantuk
- 26. Microservices… Macro Operations • Microservice Prerequisites (bit.ly/1wIjY58) – Rapid provisioning – Basic monitoring – Rapid application deployment • In a nutshell… – Technical part of DevOps – CI/CD 05/07/2016 @danielbryantuk
- 31. Failing to Prepare, is Preparing to… • Good monitoring and alerting • Practice failure (for real) – Chaos, Gamedays, DiRT sessions • Accountability – R.A.S.C.I. 05/07/2016 @danielbryantuk
- 32. Helpful Processes • BDD user journeys across system (via APIs) – …and individual services – Don’t forget ‘ilities’ (ZAP, bdd-security, Jmeter) • Brendan Gregg’s USE methodology – check utilization, saturation, and errors. • Symptom-based Monitoring (Ticketmaster) 05/07/2016 @danielbryantuk
- 33. Operational Values designing for failure over implementing extensive redundancy independent automated continuous deployment over coordinated manual big bang releases programmable infrastructure over manually-configured snowflakes Individuals and interactions over processes and tools symptom-driven monitoring over fault-report alerting 05/07/2016 @danielbryantuk
- 34. 5. Change management without Management double-speak 05/07/2016 @danielbryantuk
- 35. Change Management is Essential • Fair process (three ‘E’s) – Engagement – Explanation – Expectation • Leading change – Transformation is a process – Communicate, plan, evaluate, learn – Empowerment and empathy 05/07/2016 @danielbryantuk
- 42. NOTHS 2015 • An epic journey for all of the business • Docker is now proving itself in production – Reduced response time and footprint • Packaging applications is easier – So is experimentation… • Increased harmony between Dev and Ops 05/07/2016 @sheriffjackson | @danielbryantuk
- 44. Organisation, Architecture, Operations products over projects small inter-discipline teams over large homogeneous cabals multiple cohesive services over a comprehensive application goal-driven technical leadership over command and control automated continuous deployment over manual big bangs individuals and interactions over processes and tools 05/07/2016 @danielbryantuk