Microservices in the cloud at AutoScout24

ITM Top Leadership Team | 07.03.2015 | Christian Deger

Microservices in the cloudat AutoScout24

Christian DegerArchitectcdeger@autoscout24.com@cdeger

2,4 Million Vehicles

17 countries

350 employees

140 in IT

1.000.000.000Page Impressions per Month

2000 Servers2 Data Centers

MTBF optimized

NewCEO

Talent?Do you attract

21st CenturyWhat does a

tech company look like?

Great Design

Universally Connected

Mobile First

Instant Business Value

Massive Data Insight

Highly Available

goodHmm, we are

Rebooteverything

.NET / Windows to JVM / Linux

Monolith to Microservices

Data center to AWS

Devs + Ops to Collaboration culture

Involve product people

Giants

Stand on the Shoulders of

samedirection

STRATEGICGOALSGoals of the business side

ARCHITECTURALPRINCIPLESHigh-Level Principles

DESIGN AND DELIVERY PRINCIPLESTactical measures

REDUCE TIME TO MARKETSpeed, Fast Feedback

COST EFFICIENCYCollect metrics to allow decisions cost vs. value.

SUPPORT DATA-DRIVEN DECISIONSListen to users and validate hypothesis.Provide as many relevant metrics & data as possible.

YOU BUILT IT, YOU RUN ITThe team is responsible for shaping, building, running and maintaining its products. Fast feedback from live and customers helps us to continuously improve.

ORGANIZED AROUND BUSINESS CAPABILITIESBuild teams around products not projects. Follow the domain and respect bounded contexts. Inverse Conway Maneuver.

LOOSELY COUPLEDBy default avoid sharing and tight coupling, except for the big things in common. Don’t create the next monolith.

MACRO AND MICRO ARCHITECTUREClear separation. Autonomous micro services within the rules and constraints of the macro architecture.

AWS FIRSTFavor AWS platform service over managed service, over self-hosted OSS, over self-rolled solutions.

DATA-DRIVEN / METRIC-DRIVENCollect metrics from processes and applications. Analyze, alert and act on them.

ELIMINATE ACCIDENTAL COMPLEXITYStrive to keep it simple. Focus on essential complexity. You build one, you delete one.

AUTONOMOUS TEAMSMake fast local decisions. Be responsible. Know your boundaries. Share findings.

INFRASTRACTURE AS CODEAutomate everything: Reproducible, traceable and tested.Immutable servers over snowflake servers.

COLLABORATION CULTUREEngineers from all backgrounds work together in collaborative teams as engineers and share responsibilities. No silos.

BE BOLDGo into production early. Value monitoring over tests. Recover and learn. Optimize for MTTR not MTBF.

SECURITY, COMPLIANCE AND DATA PRIVACYSecurity must be included from the beginning and everybody’s concern. Keep data-privacy in mind.

CONTAINMENT AND BOUNDARIESAlign blast radius and vendor lock-in with the boundaries of the organization or business capabilities.

Version 1.0Icons made by Freepik from www.flaticon.com are licensed under CC BY 3.0

MeasureLearn

Microservices

Conway’s Law

“organizations which design systems ... are constrained to produce designs which are copies of the communication structures of these organizations”

Autonomous teams

business capabilitiesorganized around

crossfunctional teams

We are all engineers!

You build it,you run it.

while developing software

Cost optimization

ZeroBug Policy

ContinuousDelivery

Unlimited Infrastructure with APIs

ImmutableServers

Monitoring is the new testing

Separatecode deployment

feature release

Nostaging

environment