A Microservices Architecture

That Emphasizes Rapid Development

@robhruska

@HudlEngineering

Customers○Coaches○Athletes○Recruiters○Video Coordinators

○Analysts○Parents○Alumni○Fans

4.5MM active users130K teams

10K reqs/secondC# / JavaScript /

MongoDBAmazon Web Services

Culturally Fast / Rapid○Small cross-cutting squads○Ship early, ship often; MVP○Anyone can deploy, anytime○Deploys, rollbacks are fast and easy○Low friction for service operation

2 3 41h 2 3 6 1d12 18 5 6 7 14 21 22+

10

20

30

40

50

60

Branch Lifecycle Duration

Exploring ► Implementing ► Improving

If you wish to make an apple pie from scratch,you must first invent the universe.

Carl Sagan

“

Problems to Solve□ Configuration□ Deployment□ Routing□ Service Discovery□ Dev. Lifecycle□ Monitoring / Tracing

□ Logging□ Testing□ Security□ ...

Monoliths vs. Microservices

Monoliths vs. Microservices

Cross-Domain Development

Monoliths vs. Microservices

Deployment Workflows

800

100

Deploys / Week by Environment

~ 46 contributors

Total # Product Team Members / Week

organizations which design systems ... are constrained to produce designs which are copies of

the communication structures of these organizations

Melvin Conway

“

public class RouteConfig : IRouteConfig { public IEnumerable<string> GetApplicationRoutes() { return new List<string> { "speedtest.*", "api/v2/speedtest/.*", "bifrost/speedtest/.*", "scripts/speedtest/.*", "bundles/speedtest/.*", "css/speedtest/speedtest.css", }; }

[BifrostService]public interface ISpeedTestResultService{ [Path("speedtest-result/get-latest-result-for-user")] [Idempotent] Task<SpeedTestOverallResultDto> GetLatestResultForUser(

string userId,CancellationToken? token = null);

}}

using Hudl.Bifrost.Location;using Hudl.SpeedTest.Client.Services;

var result = await ServiceLocator.Get<ISpeedTestResultService>()

.GetLatestResultForUser(userId);

Architecture Flows With Organizational

Structure

New Service IntroductionTeam Reorganization

○ New squads / business focus

○ Shifting focus / domain○ Replacing functionality

Reactionary

○ Deploy queue○ Build times○ Code size○ Targeted migration

Deploys / Week, Basketball

MicroservicesLoosely coupledService orientedBounded contexts

speedtest

14 files< 1000 LOC

1 Page0 APIs

1 Endpoint

users recruit

222 files44k LOC

3 Pages8 APIs

78 Endpoints

1900 Files400k LOC

Dozens ofpages & APIs64 Endpoints

Tiny

Small

Medium

Large

Mega

# Services by Size

MicroservicesLoosely coupledService orientedBounded contexts

Lessons Learned & The Future

Thanks!@robhruska robhruska.comgithub.com/robhruska

@HudlEngineeringhudl.github.iopublic.hudl.com/bits/