micromanchester 2016 "microservices from 30000ft: organisation, architecture and...

Microservices from 30,000ft:Organisation, architecture and (Dev)Operations

DanielBryant

@[email protected]

www.opencredo.com

BusinessandPeople==“Fluffiness”?

05/07/2016 @danielbryantuk

“Micro-fluffiness?”


AProposal…

Ifdoneright,the“(micro)service”approachcanprofoundlyimpactthewaywedelivervaluablesoftware

ButwesaidthesamethingaboutAgile,SOA,DevOps…- Weneedtothinkholistically-


1. Lets start with a Story... OpENCREDO Went Skiing05/07/2016 @danielbryantuk

Weareuncoveringbetterwaysofdevelopingsoftwarebydoingitandhelpingothersdoit.

Throughthisworkwehavecometovalue:

productsoverprojectssmallinter-disciplineteamsoverlargehomogeneouscabalsmultiplecohesiveservicesoveracomprehensiveapplicationgoal-driventechnicalleadership overcommandandcontrolautomatedcontinuousdeploymentovermanualbigbangs

individualsandinteractionsoverprocessesandtools

Organisation,architecture,(dev)operations


@danielbryantuk

• London JavaCommunityAssociate

• AdoptOpenJDK andJSR

• InfoQEditor,DZone MVB,Voxxed


• ChiefScientistatOpenCredoü Transformingbusinessthroughtechandteamsü Java,Golang,CI/CD,DevOpsü Microservices,cloud,containers

2. Organisation: Conway was telling the truth...05/07/2016 @danielbryantuk

Conway’sLaw


Cross-functionalTeams• Spotify (bit.ly/1C46ZKo)– Culture

• Amazon(bit.ly/1F3Dgkm)– Communication

• Gilt(gi.lt/1rgyWvO)– Strategicalignment


AWordofCaution• DividedCompanies

– Traditional‘enterprise’organisation– Commandandcontrol, specialised,divisionoflabour– Predictableinstableenvironments– Sixsigma,ESBs,andclassicalSOA

• ConnectedCompanies– Startupsandforward-thinkers– Autonomous, fractal,service-focused– Adaptiveinuncertainenvironments– Agile/lean,REST,andmicroservices


Bi-Modal/Tri-ModalIT


blog.gardeviance.org/2015/06/why-agile-lean-and-six-sigma-must-die.html

SimonWardley blogsextensivelyinthisspace…

Organisational Valuessmallinter-disciplineteams overlargehomogeneouscabals

products overprojects

userimpactovercustomerrequirements

creatingverifiableincrementalvalue overaddingfeatures

incrementaltransformationoverbig-bang“re-org”


3. Architecture: think Micro, Think Macro, Think LEADERSHIP


Architectural/DesignSkills“Ifyoucan'tbuilda[well-structured]monolith,

whatmakesyouthinkmicroservices aretheanswer?”

SimonBrown(bit.ly/1n7D0vp)


Architectural/DesignSkills


stackexchange.comwww.etsy.com

gilt.com (AreAwesome)


www.slideshare.net/trenaman/javaone-2015-scaling-micro-services-at-gilt

Architecture,MinustheIvoryTowers• Technicalleadership(bit.ly/1EUwpLl)

• Communication(bit.ly/1Ia3u8o)

• Empathy

• ‘Justenough’upfrontdesign


MigratingArchitecture• Findseams

• Measuretoxicityofcode

• Standardisewhatmatters(glue/infra)

• Patterns(bit.ly/1GRch2v)– Bigbang– Changeviacopy/extraction– Strangle


DesignforReplacability


JamesLewisbit.ly/1Qy4g2d

SamNewmanbit.ly/1WijsUX

WordofCaution:Evaluation

“Iwillpostponeusingthisshinynewframeworkuntilmypeershavevalidatedtheproposedbenefits

withrigorousscientificexperiments”

- Saidbynoprogrammer…ever


ArchitecturalValues

multiplecohesiveservices overacomprehensiveapplication

boundedcontextsoverasingledomainmodel

autonomousgoal-drivenleadership overanarchyorcommandandcontrol

implementingsignalsandperformanceindicatorsovermeasuringvanitymetrics


4. Operations: Automate everything (except the people)05/07/2016 @danielbryantuk

Microservices…MacroOperations• Microservice Prerequisites(bit.ly/1wIjY58)– Rapidprovisioning– Basicmonitoring– Rapidapplicationdeployment

• Inanutshell…– TechnicalpartofDevOps– CI/CD


05/07/2016 @danielbryantukwww.opencredo.com/2015/10/31/javaone-building-a-microservice-development-ecosystem-video

IntheBeginning…


…andintheMiddle(andthe‘End’)


…andintheMiddle(andthe‘End’)

05/07/2016 @danielbryantukwww.infoq.com/news/2015/06/too-big-to-fail

FailingtoPrepare,isPreparingto…• Goodmonitoringandalerting

• Practicefailure(forreal)– Chaos,Gamedays,DiRT sessions

• Accountability– R.A.S.C.I.


HelpfulProcesses• BDDuserjourneysacrosssystem(viaAPIs)– …and individualservices– Don’tforget‘ilities’(ZAP,bdd-security,Jmeter)

• BrendanGregg’sUSEmethodology– checkutilization,saturation,anderrors.

• Symptom-basedMonitoring(Ticketmaster)05/07/2016 @danielbryantuk

OperationalValuesdesigningforfailure overimplementingextensiveredundancy

independentautomatedcontinuousdeployment overcoordinatedmanualbigbangreleases

programmableinfrastructureovermanually-configuredsnowflakes

Individualsandinteractions overprocessesandtools

symptom-drivenmonitoring overfault-reportalerting


5. Change management without Management double-speak05/07/2016 @danielbryantuk

ChangeManagementisEssential• Fairprocess(three‘E’s)– Engagement– Explanation– Expectation

• Leadingchange– Transformationisaprocess– Communicate,plan,evaluate,learn– Empowermentandempathy


HaveaLittleEmpathy…


Aquickcasestudy…


www.notonthehighstreet.com

05/07/2016 @sheriffjackson |@danielbryantuk

Lesson1:Ifyoudesignaprocess,makesureyouuseit.


NOTHS2015• Anepicjourneyforallofthebusiness

• Dockerisnowprovingitselfinproduction– Reducedresponsetimeandfootprint

• Packagingapplicationsiseasier– Soisexperimentation…

• IncreasedharmonybetweenDev andOps


Insummary…


Organisation,Architecture,Operationsproducts overprojects

smallinter-disciplineteamsoverlargehomogeneouscabals

multiplecohesiveservicesoveracomprehensiveapplicationgoal-driventechnicalleadership overcommandandcontrol

automatedcontinuousdeploymentovermanualbigbangsindividualsandinteractions overprocessesandtools


05/07/2016 @danielbryantukwww.slideshare.net/dbryant_uk/qcon-ny-2016-the-seven-more-deadly-sins-of-microservices

(More)BedtimeReading


THANKS... QUESTIONS?

@[email protected]

‘MicroservicesWeekly’(muservicesweekly.com)

www.opencredo.com/blog

www.parleys.com/author/daniel-bryantwww.infoq.com/author/Daniel-Bryant


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