Highway to heaven Building microservices in the cloud Frankfurter - PowerPoint PPT Presentation

Highway to heaven Building microservices in the cloud Frankfurter Entwicklertag 2016

Agenda Meet AutoScout24 Shifting gears How we build our services How we organize ourselves @cdeger & @wolfwolf

AutoScout24 - 30.000ft C C

C Baseline AutoScout24 IT Highly optimized, but of last decade IT platform supported growth for >6 years Microsoft oriented stack Enterprise IT setup - MTBF over MTTR Proven agile and lean principles C C

New CEO C C

Do you attract talent? C C

C C

Project Tatsu W W

Five challenges Monolith to Microservices Data center to AWS .NET / Windows to JVM / Linux Devs + Ops to DevOps culture Involve product people

Technical transformation W W

Change the wheels while driving W W

Strategic Goals Architectural Principles Design and Delivery Principles Goals of the business side High-Level Principles Tactical measures Reduce Time to Market Organized around Business Capabilities You build it, you run it Speed, Fast Feedback Build teams around products not projects. Follow the domain The team is responsible for shaping, building, running and and respect bounded contexts. Inverse Conway Maneuver. maintaining its products. Fast feedback from live and customers helps us to continuously improve. Support Data-Driven Decisions Containment and Boundaries Collaboration Culture Listen to users and validate hypothesis. Align blast radius and vendor lock-in with the boundaries of the Engineers from all backgrounds work together in collaborative Provide as many relevant metrics & data as possible. organization or business capabilities. teams as engineers and share responsibilities. No silos. Cost Efficiency Eliminate Accidental Complexity Autonomous Teams Collect metrics to allow decisions cost vs. value. Strive to keep it simple. Focus on essential complexity. You build Make fast local decisions. Be responsible. Know your one, you delete one. boundaries. Share findings. Another goal Shared Nothing Be Bold Work in progress... By default avoid sharing and tight coupling, except for the big Go into production early. Value monitoring over tests. Recover things in common. Don’t create the next monolith. and learn. Optimize for MTTR not MTBF. Macro and Micro Architecture Data-Driven/ Metric-Driven Clear separation. Autonomous micro services within the rules Collect metrics from processes and applications. Analyze, alert and constraints of the macro architecture. and act on them. Security, Compliance and Data Privacy Infrastructure As Code Security must be included from the beginning and everybody’s Automate everything: Reproducible, traceable and tested. concern. Keep data-privacy in mind. Immutable servers over snowflake servers. AWS First Favor AWS platform service over managed service, over self- hosted OSS, over self-rolled solutions. C C

Principles Organized around business capabilities You build it, you run it Be bold Macro and micro architecture Shared nothing

Shared infrastructure Shared nothing Availability over shared nothing Convenience offerings No side effects Fast local decisions over committee Respect family ties W W

How (not) to share Use over re-use Re-use only after hardening Copy n’paste, OSS, library Pull instead of push EventPublisher24 W W

How many environments? Prod Engineer CI Dev Staging V5 V4 V3 V2 V1 V8 V7 V6 V5 V4 Which versions on staging? Prod differs anyway: Load, data, patterns C C

Dev and prod is enough Engineer CI Dev Prod V5 V4 V3 V2 V5 V8 V7 V6 Consumer driven contracts Shadow traffic Semantic monitoring Smoke tests or canary releases C C

Event Sourcing and data pumps One way data highway Event Sourcing - store history of all changes W W

Evolution SQS + S3 Kinesis + S3 Kinesis + DynamoDB SQS + DynamoDB Proxy + DynamoDB DynamoDB W W

Frontend integration Shared nothing Autonomous teams One domain High optimisation C C

Frontend integration C C

PageSpeed Module css (page) css (page+fragment) css (fragment) ngx_pagespeed js (fragment) js (page) js (page+fragment) C C

Wolf How to build autonomous teams Do not fall back into old behaviours Beware of Mandelbrot teams Pager duty so that you run it Fix broken windows Part-time ops not working Not all T-shapes are the same W W

Infrastructure guild Agree on things to do Share learnings Delegate implementation to teams Empty backlog should be normal Infrastructure product teams needed? W W

cdeger@autoscout24.com @cdeger wschlegel@thoughtworks.com @wolfwolf

Attributions Blue sky, white-gray clouds by nature protector Natubico, www.vivism.info [CC BY-SA 3.0] http://commons.wikimedia.org/wiki/File%3ABlue_sky%2C_white-gray_clouds.JPG A Danish Perspective by NASA [Public domain] http://commons.wikimedia.org/wiki/File%3AA_Danish_Perspective.jpg http://commons.wikimedia.org/wiki/File%3ANASAComputerRoom7090.NARA.jpg GREG EINRAD Amazon16 by Neil Palmer/CIAT [CC BY-SA 2.0] https://www.flickr.com/photos/ciat/5641594952 BERGSTEIGER Barber in Cameroon by James Emery from Douglasville, United States (Daddy Joe_1355) [CC BY 2.0] http://commons.wikimedia.org/wiki/File%3ABarber_in_Cameroon.jpg Wide objectives by Kivela (Own work) [Public domain] href="http://commons.wikimedia.org/wiki/File%3AWide_objectives.jpg Transformer Fire Barrier by GerryS1 (Own work) [CC BY-SA 3.0 or GFDL] http://commons.wikimedia.org/wiki/File%3ATransformer_Fire_Barrier.jpg

Attributions (cont) Alonso Renault Pitstop Chinese GP 2008 by Bert van Dijk (Pitstop F1 ING Renault) [CC BY-SA 2.0] http://commons.wikimedia.org/wiki/File%3AAlonso_Renault_Pitstop_Chinese_GP_2008.jpg Principle of Panchasheel by Prakash Adhikary (Own work) [CC BY 3.0] http://commons.wikimedia.org/wiki/File%3APrinciple_of_Panchasheel.JPG Traffic Jam by Doo Ho Kim [CC BY-SA 2.0] https://www.flickr.com/photos/titicat/3049591547 Pellets by The original uploader was Richard Mayer at German Wikipedia [GFDL or CC-BY-SA-3.0] http://commons.wikimedia.org/wiki/File%3APellets.jpg Pipes and Valves by Uwe Hermann [CC BY-SA 2.0] https://www.flickr.com/photos/73628542@N00/6272975359 Size variation in Coccinella undecimpunctata (2127991716) by Gilles San Martin from Namur, Belgium [CC BY-SA 2.0] http://commons.wikimedia.org/wiki/File%3ASize_variation_in_Coccinella_undecimpunctata_(2127991716).jpg Mille crêpe by Laitr Keiows (Own work) [CC BY-SA 3.0 or GFDL] http://commons.wikimedia.org/wiki/File%3AMille_cr%C3%AApe.jpg Country Energy power line replacement 01 by Bidgee (Own work) [CC BY-SA 3.0] http://commons.wikimedia.org/wiki/File%3ACountry_Energy_power_line_replacement_01.jpg Puzzling by Bernd Gessler (Own work) [CC BY-SA 3.0] https://commons.wikimedia.org/wiki/File%3APuzzling.JPG

Attributions (cont) Sharing Sucks (4536747557) by eyeliam from Portland, United States [CC BY 2.0] http://commons.wikimedia.org/wiki/File%3ASharing_Sucks_(4536747557).jpg 7Line 9184 (8263568241) by Metropolitan Transportation Authority of the State of New York (7Line_9184 Uploaded by tm) [CC BY 2.0] http://commons.wikimedia.org/wiki/File%3A7Line_9184_(8263568241).jpg England rugby team 1905 by Russell & Sons (The Graphic) [Public domain or Public domain] http://commons.wikimedia.org/wiki/File%3AEngland_rugby_team_1905.jpg Wandergeselle by Sigismund von Dobschütz [CC BY-SA 3.0] http://commons.wikimedia.org/wiki/File%3AWandergeselle_02.JPG Faber-Rechenschieber 5304 by User:Karl Gruber (Own work) [CC BY-SA 4.0] http://commons.wikimedia.org/wiki/File%3AFaber-Rechenschieber_5304.JPG Wheel clamps Texas by Richard Anderson from Denton, United States (Boots.) [CC BY-SA 2.0] http://commons.wikimedia.org/wiki/File%3AWheel_clamps_Texas.jpg GuadalupeNOLA15Oct07Thanks by Infrogmation of New Orleans (Photo by Infrogmation) [GFDL or CC BY-SA 3.0] http://commons.wikimedia.org/wiki/File%3AGuadalupeNOLA15Oct07Thanks.jpg AtariBasic by Calin99 (Own work) [GPL] http://commons.wikimedia.org/wiki/File%3AAtariBasic.png Spare wheel by Brian Snelson [CC BY 2.0] https://commons.wikimedia.org/wiki/File:Spare_wheel_-_Flickr_-_exfordy.jpg

Backup

Unified Logs C C

Two stacks Cash stack meets shiny new stack One company Lights on in cash stack Feature freeze Where to build new features? Ease of integration helps business people C C

From documents to events Refactoring toward deeper insight From CRUD to sync Offline first Writes are expensive USD 20 over USD 500 C C

W How many layers to estimate a price Evolving architecture R backend and Play application Single Play application Play backend and Play web server Long feedback cycles Frequency of change W W

C Watchlist evolution DynamoDB as JSON document store Scheduled user journey test Capacity exceeded Requests throttled Latency spikes for real users C C

Focus sliders Product over platform business IT time W W

Focus sliders Product over platform Delivery over learning business IT time W W