about face: reflections on growing an open source mentality. jean charles sisk presentation nodeday...
TRANSCRIPT
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About-FaceREFLECTIONS ON GROWING ANOPEN-SOURCE MENTALITY
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About-FaceHOW I SNUCK A CULTURE TALK INTO
NODEDAY AMSTERDAM
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Self-DestructHOW TO WRITE A
SELF-DEFEATING TALK
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PLEASE ALLOW MYSELFTO PROPERLY
INTRODUCE MYSELF
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Jean-Charles Sisktwitter/@jcse • github/jasisk • jeancharles@paypal
▸ BOSTON, MA, USA▸ ENGINEER▸ PAYPAL
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"I have hats older than your country."— Europeans
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Jean-Charles Sisktwitter/@jcse • github/jasisk • jeancharles@paypal
▸ BOSTON, MA, USA▸ ENGINEER▸ PAYPAL
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i saidYES
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THE JOBI HAVE
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I work, primarily, onOPEN SOURCE SOFTWARE
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JOB IWISH I HADMATCHING FAMILY
SWEATSHIRT MODEL
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NODEJS
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you're in luck,I AM NOT GOING TO TALK ABOUT NODEJS
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SINCE ADOPTING NODEJS IN 2012
▸ massive growth in app-engineer developed componentry▸ greatly improved developer happiness▸ significantly faster time to live
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OUR APPLICATIONSAPPEAR TO HAVE BEENBUILT IN THE 21ST CENTURY
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REMEMBER WHEN PAYPAL LOOKED LIKE THIS?
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Technology adoption checklist:▸ TECHNOLOGY▸ PROCESS▸ CULTURE
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don't worry,I'M STILL NOT GOING TO
TALK ABOUT NODEJS
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Technology adoption checklist:▸ TECHNOLOGY▸ PROCESS▸ CULTURE
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NODEJS WAS ATROJAN HORSE
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"If one sticks to the idea that once set, a plan should not be changed, a business
cannot exist for long."— Taiichi Ohno
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But first:A BRIEF HISTORY
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OOPS
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PAYPAL IN THEMID-AUGHTS WAS
DRIVEN EXCLUSIVELYBY RISK MITIGATION
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SLOW BY DESIGN
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Developers:CREATURES OF HABIT
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TRUSTNO ONE
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nih(NOT INVENTED HERE)
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GREAT FOR FARMS—NOT GREAT FOR YOUUNLESS YOU FARM, IN WHICH CASE I'M IMPRESSED
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"everything is a secret andI trust no one."
— Developers
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PAYPAL IN THEMID-AUGHTS WAS
DRIVEN EXCLUSIVELYBY RISK MITIGATION
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!
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THE CULTURE WAS THE REAL REASON FOR THE DECISION TO CHANGE
THE TECHNOLOGY WAS HOW WE SOLD IT
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HOW?
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start small
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TEAR ITDOWN
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BUILD ITBACK UP
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TRANSPARENTLY?
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CONSIDER EVERYTHING BUTDON'T BE AFRAID TO SAY NO
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TRANSPARENCY:
I lied.
ENJOY THE FOLLOWING NODEJS CODE
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HOW TO WRITE AN EXPRESS APPimport Express from 'express';
const app = Express();
app.listen(8000);
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HOW TO WRITE A KRAKEN APPimport Express from 'express';import Kraken from 'kraken-js';
const app = Express();
app.use(Kraken());app.listen(8000);
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HOW TO WRITE A PAYPAL APPimport Express from 'express';import Kraken from 'kraken-js';import PayPal from 'paypalize';
const app = Express();const opts = PayPal();
app.use(Kraken(opts));app.listen(8000);
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So …WHAT DOES
THAT GIVE US?
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dynamic service mapping, local secrets decryption,service configuration, PayPal standard configuration(csrf, x-frame, etc), central logging, central cookiehandling, central device-detection, central sessionhandling, central exception tracking, monitoring,
analytics, app heath-checks, infra-specific uncaughtexception handling, CDN awareness …
… you generally wouldn't know that unless you read the README.
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RELY ON EXISTINGCOMMUNITY CONVENTIONS
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when you're not wasting time learning and fighting your internal systems, you have time to accomplish the job you signed up for
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Homework:SEE WHAT KATHY SIERRA HAS TO SAY
ABOUT DEPLETING COGNITIVE RESOURCES1
1 youtu.be/FKTxC9pl-WM
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"Fine, but that's a lot of work for one line. Isn't that too magical?"
— you
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AbsolutelyBUT THERE'S A CATCH
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EVERYTHING IS IN THE OPENWITH AN EMPHASIS ONDOCUMENTATION AND
DISCOVERABILITY
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"What about our process?We can't make [custom-x]
an open process."— you
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K. DON'T.BUT FIND A WAY TO MAKE IT WORK
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HOOK INTO COMMON PROCESSES▸ Source Control
▸ Continuous Integration▸ Distribution Service▸ Deployment
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consider optimismASSUME SUCCESS AND
GOOD INTENTIONS FOR NON-CRITICAL SYSTEMS AND APPLICATIONS
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ADOPTING COMMON CONVENTIONAND BUILDING IN THE OPEN
BUILDS TRUST
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PROMOTING TRUST:COMMUNITY
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BUILDING COMMUNITY:
CULTURE
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… big finish …
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IT SHOULD COME AS NO SURPRISE THAT THESE ARE PRECISELY THE WAYS LARGE-
SCALE OPEN-SOURCE PROJECTS WORK
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… wall of text alert …
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Building our projects as if they're open-source even with no intention of ever opening them up has lead to better documentation, discoverability,
ownership, responsibility, code-quality, efficacy, etc.
By emulating practices we've seen and used in the open-source community, we've seen tremendous growth from both seasoned
developers and new hires alike.
By simply adopting open principles,PayPal is a measurably better place to work.
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Thanks.@JCSE