talk given at http://mix-it.fr/

1. I WANT TO BE
A MORE
EFFICIENT
DEVELOPER
TALK BY
@WAXZCE – QUENTIN ADAM
AT MIX IT 2014

2. MY DAY TO DAY WORK :
CLEVER CLOUD, MAKE YOUR
APP RUN ALL THE TIME

3. And learn a lot of things about your code, apps, and good/bad design…
KEEP YOUR APPS ONLINE. MADE WITH
NODE.JS, SCALA, JAVA, RUBY, PHP,
PYTHON, GO…

4. DEVELOPERS ARE MORE
AND MORE CREATIVE

5. DEVS LEADS A LOT OF
BUSINESS

6. SHIP QUICKLY
WORKING APPS

7. VALUE IS
ON PEOPLE
MARKET KNOWLEDGE, TEAM
MANAGEMENT, PRODUCT OWNERSHIP…

8. HOW MAKE
THEM BE
MORE
EFFICIENT ?

9. DEVELOPER
HAPPINESS
IS KEY

10. HAPPY PEOPLE
PRODUCE BETTER WORK

11. OPTIMIZE CODE AND PROCESS TO BE
HAPPY OF WHAT YOU ARE DOING

12. OPEN SOURCES WORK
PROCESSES ARE BETTER

13. PEOPLE WRITING
CODE BECAUSE
THEY JUST WANT
TO DO IT
THINK ABOUT

14. BECAUSE THEY CAN SOLVE
PROBLEM OF THE WORLD

15. BUILD A
FRAMEWORK TO
PRODUCE CODE
EASILY AND
SHOW IT EASILY

16. RELEASE
EARLY
RELEASE
OFTEN

17. RELEASE
EARLY
DEPLOY
OFTEN

18. FOCUS ON YOUR OWN
ADDED VALUE

19. DEPLOYMENT HAS TO
BE EASY !

20. BE FOCUS WHEN YOU
CODE

21. GIT PUSH
<YOUR_FAVORITE_HOSTING_
PROVIDER> MASTER

22. GIT PUSH <YOUR_FAVORITE_
CONTINUOUS_INTEGRATION_
SYSTEM> MASTER

23. OR NOT ;-)

24. ALL THE TEAM HAVE TO
BE READY TO DEPLOY

25. YOU HAVE
TO DEPLOY
YOUR APP
SEVERAL
TIMES A DAY

26. SPLIT YOUR
APP

27. SPLIT THE CODE : MODULES

28. SMALLEST CODE BASE POSSIBLE
FOR EACH PROGRAM

29. EACH MODULE
IS VIEWED AS
A SERVICE BY
OTHERS
HTTP OR AMQP COMUNICATION
OR AS A CLIENT

30. USE EVENT BROKER TO
MODULARIZE YOUR APP
• AMQP
• Celery
• 0MQ
• Redis
• JMS
• Some case : hadoop, akka…
• …
CRON is not an event queue

31. FOCUS ON THE BEST
TOOL TO SOLVE YOUR
PROBLEM

32. DON’T BE THAT GUY

33. DO NOT USE A
TECHNOLOGY BECAUSE
YOU <3 IT OR BECAUSE
IT’S HYPE : USE IT
BECAUSE IT FITS YOUR
NEEDS
BALANCE YOUR LEARNING CURVE WITH
THE TIME SAVED

34. DO NOT CREATE MONSTERS

35. LEAR NEW THINGS &
INNOVATE

36. {P, DB, S} aaS
USE OPS FREE SOLUTION TO LEARN
AND START

37. USE ONLINE
DATABASE / BE
READY TO TEST
IN JUST A FEW
MINUTES
NO NEED TO TRASH YOUR COMPUTER

38. MAKE ALL
DEPLOYMENTS ASYNC
MODULE BY MODULE

39. Statelessness everywhere
AVOID HOST SPECIFIC THINGS

40. DO NOT USE FILE SYSTEM TO
STORE SOMETHING
• It doesn’t scale
• It’s hard to expose as a service
• It’s a SPOF
• There is ALWAYS a better option

41. SCALE YOUR TEAM
MODULARIZE YOUR TEAM

42. SOA IS BACK

43. TIME WILL TRASH YOUR CODE

44. THE POWER OF
REWRITE EVERYTHING

45. SMALL CODE BASE + MULTIPLE
TECHNOLOGIES =
LEGACY KILLER

46. REWRITE IS QUICK BECAUSE
YOU KNOW ALL THE PROBLEMS
BEFORE IT HAPPENS

47. HAPPY DEVELOPER WORKS BETTER :
ARE YOU HAPPY WHEN YOU START
YOUR IDE?

48. VERSION EVERYTHING !
Data & API

49. NOSQL JSON DATA
NEED VERSION
Get doc on
DB
Version check
: is there an
update to do
?
Use it at last
code version

50. USE HTTP
AND ALL THE
GOODNESS
IT BRING ON
YOUR APP

51. 200 OK
BODY : { TYPE :
ERROR,
MESSAGE : I
CAN’T FIND THE
FILE }

52. REALLY ?

53. PUT SOME
TOOLS IN
YOUR CODE

54. USE BUILD MANAGER

55. LET PEOPLES FREE TO
CHOOSE THEIR IDE

56. USE A CONFIGURATION
MANAGER / LIBRARY

57. LEARN GIT “LIKE A BOSS”

58. I MEAN : USE GIT WITH CLI

59. FOCUS ON CODE
READABILITY

60. AVOID EARLY PERFORMANCES
OPTIMIZATION

61. YOU HAVE TO
THINK IT’S
YOUR FIRST
DAY ON THE
CODE BASE

62. AND
SOMETHING
WILL MAKE
YOU HAPPY

63. A DOCUMENTATION SLIM AS POSSIBLE

64. WRITE EVERYTHING

65. DO YOU WORK LIKE THIS ?

66. EXAMPLE :
HOW DOES
CLEVER
CLOUD WORK
?

67. SOME OF
TECHNOLOGY WE USE
C

68. ALL TOGETHER USING HTTP & AMQP

70. THE FAST DEVELOPER WAY
• Statup
weekends
• Hackatons
• Coding dojo
• Lean startup
machine

71. I’m @waxzce on twitter
I’m the CEO of
A PaaS provider, give it a try
;-)
THX FOR LISTENING
& QUESTIONS TIME