Developer Productivity in Cookpad

クックパッドはなぜ開発しやすいのか

At AWS Summit Tokyo 2015 Developer Conference
2015/06/03

Transcript

1. ΫοΫύου͸ͳͥ
   ։ൃ͠΍͍͢ͷ͔ ΫοΫύουגࣜձࣾ
   ੒ాҰੜ
   
   "84
   4VNNJU
   5PLZP
   
2. ੒ా
   Ұੜ ͳΔͨ ͍͍ͬͤ !NJSBLVJ ΫοΫύουגࣜձࣾ
   ΠϯϑϥετϥΫνϟʔ෦௕
3. ΫοΫύουʹ͍ͭͯ
4. .
   6#NP .
   14
   VTFST .
   DPPLJOH
   SFDJQFT ˞೥݄ݱࡏ !" # !
5. 'VMM
   "84 2011೥3݄ ౦ژϦʔδϣϯΦʔϓϯ 2011೥8݄ DC͔ΒAWS΁Ҡߦ ✈
6.  
   &$
   JOTUBODFT
   BU
   QFBL  
   SFRTFD
   BU
   QFBL $
7. 
   0QT 
   %FWFMPQFST 
   %FQMPZTEBZ ⚒ #
8. IUUQTTQFBLFSEFDLDPNB@NBUTVEBUIFSFDJQFGPSUIFXPSMETMBSHFTUSBJMTNPOPMJUI ΫοΫύου͸ੈքҰڊେͳ
   ϞϊϦγοΫ
   3BJMT
   ΞϓϦέʔγϣϯʢ͔΋͠Ε·ͤΜʣ
10. ʮ։ൃ͠΍͍͢ʯͱ͸Կ͔
11. % ʮ։ൃ͠ʹ͍͘ʯঢ়ଶͷྫ ٕज़తͳ໰୊ʹΑͬͯΠϊϕʔγϣϯ્͕֐͞Ε͍ͯΔঢ়ଶ
    େྔͷϨΨγʔίʔυɺٕज़తෛ࠴ ςετ͸͋Δ͚Ͳৗʹ͍͔ͭ͘ Fail ͍ͯͯ͠ɺ
 ์ஔ͞Ε͍ͯΔ σϓϩΠ͕ଐਓతͰɺ͕͔͔࣌ؒΓ͗ͨ͢Γɺ
 ͨ·ʹࣦഊͨ͠Γ͢Δ
12. ։ൃ͠ʹͯ͘͘Կ͕ѱ͍ʁ ݱ৔ָ͕Λ͍ͨ͠ ૉૣ͘Ձ஋Λఏڙ͍ͨ͠
13. ⚒ ։ൃ σϓϩΠ ςετ
14. ։ൃ ⚒
17. αʔϏε։ൃͱ͸Կͳͷ͔ ࡞͍ͬͯΔͷ͸ʮػೳʯͰ͸ͳ͘ʮαʔϏεʯʮϢʔβମݧʯ μϛʔσʔλͰ͸ͳ͘ຊ൪ͷσʔλΛ࢖ͬͯ։ൃ͢Δ΂͖ &
18. ຊ൪ͱಉظͨ͠%#Ͱ։ൃ͢ΔϝϦοτ • Ϣʔβʔͱಉ౳ͷମݧ • ༧ظͤ͵σʔλʹΑΔόάʹؾ͖ͮ΍͍͢ • ॏ͍ΫΤϦʹؾ͖ͮ΍͍͢
19. '# ຊ൪%# ։ൃ%# ։ൃऀ .Z42- .Z42- NZTRMEVNQ ( # ։ൃऀͷ୭͔͕ؾ͕޲͍ͨ࣌ʹ ຊ൪μϯϓσʔλ͔Β։ൃ DB Λߋ৽ ʢ൒೥ʹ1౓͘Β͍ʣ d
20. खಈߋ৽ํࣜͷ໰୊఺ ݱߦͷσʔλͷΈͰൃੜ͢ΔΑ͏ͳΤϥʔʹؾ͖ͮʹ͍͘ ৽ணίϯςϯπʹؔ࿈ͨ͠ಈ࡞֬ೝ͕͠ʹ͍͘ Ϣʔβͷମݧͱ͸ҟͳΔ
21. ' ' ' # # # ຊ൪%# ։ൃ%# NBTUFS TMBWF SFBE
    
    X SJUF ։ൃऀ .Z42- .Z42- ݱࡏ ։ൃऀ͸ৗʹຊ൪ͷ࠷৽σʔλ͕ೖͬͨDBͰ։ൃ
22. Ͳ͏΍Δͷ͔ ݒ೦఺
    slave ʹॻ͖ࠐΜͩΒΩʔিಥ౳Ͱ
 ϨϓϦέʔγϣϯΤϥʔʹͳΔͷͰ͸ʁ id ͕ຊ൪ͱͣΕͯ݁ہ࢖͑ͳ͍σʔλʹͳΔͷͰ͸ʁ
23. JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕ JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕  ͦ͹ '# ຊ൪%# ։ൃ%# */4&35 ϨϓϦέʔγϣϯ  ϥʔϝϯ ௨ৗɺslave ʹॻ͖ࠐΜͰ͠·͏ͱ AUTO_INCREMENT ͍ͯ͠Δ id ͕িಥ͢Δ
24. JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕ JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕  ͦ͹  ͏ͲΜ  ੜᇙম͖ '# ຊ൪%# ։ൃ%# */4&35 ϨϓϦέʔγϣϯ AUTO_INCREMENT ʹڊେͳΦϑηοτΛઃఆ͢Δ͜ͱͰ ຊ൪ͱিಥ͠ʹ͘͘͢Δ  ϥʔϝϯ
25. JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕ JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕  ͦ͹  ͏ͲΜ  ੜᇙম͖ ຊ൪%# ։ൃ%# εςʔτϝϯτϕʔε
    ϨϓϦέʔγϣϯ ࠷৽ͷ݅Λʮম೑ʯʹมߋ UPDATE recipes SET name=‘ম೑’ ORDER BY id DESC LIMIT 1 ম೑ ম೑ εςʔτϝϯτϕʔεϨϓϦέʔγϣϯͰ͸ ։ൃ DB ͷσʔλ͕յΕ΍͍͢
26. JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕ JE OBNF  ΧϨʔ  ͔Β͋͛  ೑͡Ό͕  ͦ͹  ͏ͲΜ  ੜᇙম͖ ຊ൪%# ։ൃ%# ߦϕʔε
    ϨϓϦέʔγϣϯ ࠷৽ͷ݅Λʮম೑ʯʹมߋ UPDATE recipes SET name=‘ম೑’ ORDER BY id DESC LIMIT 1 ম೑ ম೑ ߦϕʔεϨϓϦέʔγϣϯʹ͢Δ͜ͱͰ ։ൃ DB ͷσʔλ͕յΕʹ͘ͳΔ
27. ຊ൪%# ։ൃ%# ߦϕʔε
    ϨϓϦέʔγϣϯ εςʔτϝϯτϕʔε
    ϨϓϦέʔγϣϯ CJOMPH
    ม׵༻%# ߦϕʔεϨϓϦέʔγϣϯͰ͸ɺ όΠφϦϩά΍సૹྔ͕ڊେʹͳΓɺຊ൪ʹෛՙ͕͔͔ΔͨΊ ࣮ࡍʹ͸தؒ DB Λ༻ҙ͠όΠφϦϩάΛม׵͍ͯ͠Δ
28. ϨϓϦέʔγϣϯఀࢭରࡦ΋ඞཁ ෆ੔߹͸ى͖ʹ͘͘Ͱ͖Δ͕ɺܾͯ͠׬ᘳͰ͸ͳ͍ͷͰ
 ϨϓϦ͕ΤϥʔͰࢭ·Δ͜ͱ΋͋Δ slave_skip_errors = ON Λઃఆͭͭ͠ɺ ఀࢭͨ͠Β skip ͯ͠࠶։͢Δ؂ࢹεΫϦϓτΛӡ༻ ʢslave_skip_errors͚ͩͰ͸ skip ͞Εͳ͍Τϥʔ͕͋ΔͨΊ…ʣ
29. ' ' ' # # # ຊ൪%# ։ൃ%# NBTUFS TMBWF SFBE
    
    X SJUF ։ൃऀ .Z42- .Z42- ։ൃऀ͸ৗʹຊ൪ͷ࠷৽σʔλ͕ೖͬͨDBͰ։ൃ
30. ຊ൪؀ڥͰ։ൃ͢Δ w
31. &BU
    ZPVS
    PXO
    EPH
    GPPE ࣗ෼ͨͪͷαʔϏε͸ࣗ෼͕ͨͪϢʔβʹͳΔ΂͖ ♥
32. ඇϩάΠϯ ελοϑϢʔβ
    ͱͯ͠ϩάΠϯ ελοϑ͕ϩάΠϯ͢Δͱɺ ։ൃதͷϕʔλػೳ͕͍ͭ͘΋༗ޮʹͳΔ
33. ϕʔλػೳ ϦϦʔεൣғΛࢦఆͯ͠ެ։ ެ։ൣғͷྫ
    ελοϑͷΈʹެ։ ςετࢀՃϢʔβʹͷΈެ։ શମͷ10%ͷϢʔβʹެ։
34. αʔϏεͷՁ஋͸࢖Θͳ͍ͱ෼͔Βͳ͍ ͦͷՁ஋ͷԾઆ͸ਖ਼͔ͬͨ͠ͷ͔ʁ
    ຊ൪ʹϦϦʔε͠ͳ͍ͱɺϢʔβʹ࢖ͬͯ΋Β͏͜ͱ͕Ͱ͖ͳ͍ ຊ൪ʹϦϦʔε͢Δʹ͸ຊ൪ͷ඼࣭ͷ
 ίʔυʢύϑΥʔϚϯε౳ʣʹ࢓্͛ͳ͚Ε͹ͳΒͳ͍ʁ ˠඞཁͷͳ͍ػೳΛ࡞Γ͜ΜͰ͠·͏Մೳੑ͕͋Δ
35. ૣࣦ͘ഊΛ͢Δ ίʔυͷ࡞ΓࠐΈʹ࣌ؒΛ͔͚ΔΑΓɺ ૉૣ͘ެ։ͯ͠ԾઆΛݕূ͢ΔͨΊʹ࣌ؒΛ࢖͏΂͖ *
36. $IBOLP ຊ൪؀ڥͰͷτϥΠˍΤϥʔΛࢧԉ͢Δ Rails ༻ gem Unit ͱ͍͏୯ҐͰطଘίʔυ΁ͷύονΛهड़ ඼࣭ͷ௿͍ίʔυΛຊ൪ʹ҆શʹग़ͤΔ IUUQTHJUIVCDPNDPPLQBEDIBOLP +
37. " # طଘͷίʔυ A ΛɺελοϑϢʔβͷΈʹରͯ͠ ϕʔλ൛ͷίʔυ B ʹஔ͖׵͍͑ͨ ͨͩ͠ɺB ͸๯ݥతͳ࣮૷ͳͷͰɺྫ֎͕ൃੜ͢Δ͔΋͠Εͳ͍ طଘͷ
    $POUSPMMFS
    ͷίʔυ ϕʔλ൛ͷίʔυ
38. ελοϑͳΒ# #Ͱྫ֎͕ى͖ͨΒ" ελοϑҎ֎ͳΒ" ϑϥάͰ෼ذ͍ͤͯ͘͞ͱίʔυ͕ԚΕ͍ͯ͘
39. ϕʔλػೳͷ
    6OJU طଘͷ
    $POUSPMMFS
    ͷίʔυ " # Chanko Ͱ͸ɺUnit ͱ͍͏ϑΝΠϧʹϕʔλػೳͷϩδοΫΛهड़͢Δ invoke ৚݅Λຬͨͨ͠৔߹ʹɺطଘϩδοΫ (A) ͷ୅ΘΓʹ Unit (B) ͕࣮ߦ͞ΕΔ B ͕ྫ֎Λىͨ͜͠৔߹͸ɺݩͷ A ͕࣮ߦ͞ΕΔͨΊɺϢʔβʹ͸Τϥʔ͕ฦΒͳ͍ JOWPLF
    ৚݅
40. ແࣄʹՁ஋͕ೝΊΒΕͨΒ ຊ൪ͷ඼࣭ͷίʔυʹ࢓্͛Δ طଘίʔυΛॻ͖׵͑ɺUnit ϑΝΠϧΛফ͢
 ʢ௨শ Un-chankoʣ
41. $IBOLP
    ͷӡ༻ঢ়گ 2011: Chanko ϦϦʔε + ಋೖ 2015: 200+ Chanko Units • εςʔδϯά༻ͷαʔό͸ଘࡏ͢Δ͕ɺར༻ස౓͸௿͍ • ։ൃதͷ΋ͷΛຊ൪ʹग़͢จԽ͕Ͱ͖͍ͯΔ
42. ςετ
43. ΫοΫύουͱ
    34QFD 1800+ files 21000+ examples (test cases) 7 min ,
44. 5FTU
    TNFMMT ࣮ߦ͕࣌ؒ௕͍ յΕ΍͍͢ʢίʔυͷมߋʹऑ͍ʣ Fail ͠΍͍͢ ࣮ߦ؀ڥ΁ͷґଘ -
45. 3334QFD
46. . 3334QFD ଎ͯ͘ɾ҆ͯ͘ɾ҆ఆͨ͠
    $*
    ෳ਺ͷ Spot Instance Λ࢖ͬͯ RSpec Λฒྻ࣮ߦ ڧྗͳϑΥʔϧττϨϥϯε IUUQTHJUIVCDPNDPPLQBESSSTQFD +
47. // / / TMBWF TMBWF XPSLFS XPSLFS XPSLFS ʜ / ʜ ʜ ʜ / / / / NBTUFS ////ʜ
48. $*
    XPSLFS
    ୆਺ͷભҠ ۀ຿࣌ؒ֎͸୆਺ΛݮΒͯ͠
 ίετ࡟ݮ
49. &$
    4QPU
    *OTUBODF ͳΔ΂͘ϋΠεϖοΫͳΠϯελϯεΛ࢖͍͍͕ͨߴՁ →Spot Instance ͷར༻ 0
50. &$
    4QPU
    *OTUBODF ʮ1࣌ؒ͋ͨΓͷ࠷େೖࡳՁ֨ʯΛࢦఆͯ͠ىಈ͢Δ ࢦఆͨ͠ʮ࠷େೖࡳՁ֨ʯΑΓ૬৔Ձ͕͚֨҆Ε͹ىಈ ىಈதʹ૬৔Ձ͕֨ʮ࠷େೖࡳՁ֨ʯΛ্ճͬͨ৔߹ɺ
 Πϯελϯε͸γϟοτμ΢ϯ͞ΕΔ
    ૬৔Ձ֨͸ OnDemand Ձ֨ΑΓߴ͘ͳΔ͜ͱ΋͋Δ ૬৔Ձ֨͸ AZ ͝ͱʹΑͬͯ΋ҟͳΔ
51. ౦ژϦʔδϣϯͷͱ͋Δ
    ";
    ʹ͓͚Δ
    4QPU
    1SJDF
    DYMBSHF 0OEFNBOE
    I 3*
    Z
    BMM
    VQGSPOU
    I 
52. DYMBSHF DYMBSHF DYMBSHF ˺ ˺ DYMBSHF DYMBSHF DYMBSHF ˺ ˺ Ұ൪ίετύϑΥʔϚϯε͕͍͍
 ΠϯελϯεΛࣗಈతʹબ୒
53. ϑΥʔϧττϨϥϯε ͍͔ʹͯ͠
    GBJM
    ͠ʹ͍͘
    $*
    ʹ͢Δ͔
    ·Εʹࣦഊ͢Δ
    FYBNQMF
    ʹରͯ͠ɿ
    ۭ͍͍ͯΔ worker Ͱࣗಈతʹ࠶࣮ߦ
 Ұ౓Ͱ΋ success ͢Ε͹ success ͱͯ͠ѻ͏ 4QPU
    *OTUBODF
    ͷࣗಈγϟοτμ΢ϯʹରͯ͠ɿ
    ଞͷ worker Ͱࣗಈతʹ࠶࣮ߦ ผλΠϓͷΠϯελϯεΛىಈ͠࠶࣮ߦ
54. ׂΕ૭ཧ࿦ ݐ෺ͷ૭ׂ͕Ε͍ͯΔ֗͸ɺ࣏͕҆ѱԽ͢Δ
    ܰඍͳ൜ࡑΛపఈతʹऔΓక·Δ͜ͱͰ
 ڟѱ൜ࡑΛ΋཈ࢭͰ͖Δͱ͢Δ؀ڥ൜ࡑ্ֶͷཧ࿦ IUUQKBXJLJQFEJBPSHXJLJׂΕ૭ཧ࿦ -
55. $*
    ͕ʮׂΕ૭ʯʹͳΒͳ͍Α͏ʹ ܰඍͳ͏ͪʹൃݟ͠ɺରॲ͢Δ
    • Ϗϧυ͕࣌ؒ௕͘ͳΔ • ͚ͯ͜Δςετͷ์ஔ • pending ঢ়ଶͳςετͷ์ஔ 1
56. ௨஌ Fail ͨ͠ example ͸࡞ऀΛ blame ͯ͠νϟοτͰ௨஌ Fail ͬ͠ͺͳ͠ʹͤ͞ͳ͍
57. ·Εʹ
    'BJM
    ͢ΔςετΛݟ͚ͭΔ lBMMOJHIU
    $*z
    ۀ຿࣌ؒ֎ʹͣͬͱճ͠ଓ͚Δ CI success ཰͕௿͍ͱԿ͔͕͓͔͍͠
58. ໨ඪ ෼Ҏ಺ ෼Ҏ্͔͔ͬͨΒ௨஌ $*
    ͷϏϧυ࣌ؒΛ؂ࢹ
59. QFOEJOH
    ʹͤͬ͞ͺͳ͠ͷςετͷ࡞ऀʹࣗಈ௨஌ IUUQTHJUIVCDPNDPPLQBEQFOEBYFT +
60. $*
    ӡ༻ͷ·ͱΊ • ༏Εͨ CI γεςϜΛ࡞Δ͜ͱΑΓɺ
 Ͳ͏ӡ༻͢Δ͔͕ॏཁ • Ϗϧυ࣌ؒɾ௨ա཰ɾίετͳͲͷ
 ࢦඪΛఆٛͯ͠؂ࢹ͠ɺ
 վળ͍ͯ͘͠ • ׂΕ૭ʹ͠ͳ͍ 2
61. σϓϩΠ
62. + TVDDFTT -(5. QVMM
    SFRVFTU NFOUJPO EFQMPZ &$ (JU)VC
    &OUFSQSJTF # EFWFMPQFS # SFWJFXFS $* +FOLJOT NFSHF
63. σϓϩΠϧʔϧʢҰ෦ʣ • CI Λύεͨ͠ϦϏδϣϯͷΈσϓϩΠͯ͠Α͍ • σϓϩΠ͸ίʔυΛ push ͨ͠։ൃऀࣗ਎͕ߦ͏ • Ӧۀ࣌ؒ಺ͷΈσϓϩΠՄೳ • σϓϩΠޙ͸։ൃऀ͕ಈ࡞֬ೝ͠ɺ
 ෆ۩߹Λݟ͚ͭͨΒ͙͢ʹϩʔϧόοΫ͢Δ
64. σϓϩΠʹॏཁͳ͜ͱ • ଐਓతͰͳ͍͜ͱ • ਖ਼֬Ͱ͋Δ͜ͱ • ϩʔϧόοΫͰ͖Δ͜ͱ • े෼ʹ଎͍͜ͱ 3
65. ௚ۙिؒͷσϓϩΠʹ͔͔ͬͨ࣌ؒ ฏۉඵ 
    IPTUT
66. $BQJTUSBOP
    ࣌୅ʢʙʣ capistrano2 + rsync_with_remote_cache
67. $BQJTUSBOP
    σϓϩΠͱ଎౓ 1୆͔Βશ୆ʹ ssh + rsync σϓϩΠର৅ϗετ୆਺͕૿͑Δͱ஗͘ͳ͍ͬͯ͘
68. σϓϩΠର৅ϗετશ୆ʹ
    TTI
    
    STZOD
    ˠσϓϩΠ଎౓ͷϘτϧωοΫʹ $BQJTUSBOP # / / / / / / / STZOD
69. .BNJZB
70. .BNJZB ϋΠεέʔϥϒϧͳߴ଎σϓϩΠγεςϜ σϓϩΠର৅ϗετΛ serf ͰΫϥελϦϯά Amazon S3 ܦ༝Ͱ഑෍ Capistrano ޓ׵ͷσΟϨΫτϦߏ੒ IUUQTHJUIVCDPNTPSBINBNJZB +
71. / $* UBSCBMM 4 $*
    ͕௨ͬͨϦϏδϣϯͷίʔυ͸
    UBSCBMM
    ͱͯ͠
    4
    ʹૹΒΕΔ
72. / / / / / / / / $*
    ͕௨ͬͨϦϏδϣϯͷ
    UBSCBMM
    ͸
    શ୆͕ৗʹࣗಈͰ
    QVMM
    ͍ͯ͠Δ
    ʢ͜ͷ࣌఺Ͱ͸·ͩຊ൪ͷίʔυ͸੾ΓସΘ͍ͬͯͳ͍ʣ /
73. σϓϩΠͷࢦྩ͸
    4FSG
    Πϕϯτͱͯ͠
    (PTTJQ
    ϓϩτίϧͰ఻೻ # !IVCPU
    EFQMPZ
    QSPEVDUJPO
74. શ୆ͷϦϏδϣϯ͕੾ΓସΘΔ
    ʢϑΝΠϧ഑෍͸͋Β͔͡Ί׬͍ྃͯ͠ΔͨΊɺߴ଎ʹ׬ྃ͢Δʣ / / / / / / / / / / / / / / / / #
75. .BNJZB
    ͷεέʔϥϏϦςΟ Mamiya ͸σϓϩΠର৅ϗετ૿Ճʹରͯ͠εέʔϥϒϧ ϗετ͕૿Ճͯ͠΋ʢ΄ͱΜͲʣ஗͘ͳΒͳ͍ ϑΝΠϧͷ഑෍ɿ
    S3 ͷεέʔϥϏϦςΟΛར༻ શ୆΁ͷϦϏδϣϯ੾Γସ͑ࢦྩɿ
    Serf ΠϕϯτΛར༻
76. .BNJZB
    ʹΑΔσϓϩΠ࣌ؒ୹ॖޮՌ ෼ˠඵ DBQJTUSBOP NBNJZB DBQJTUSBOP NBNJZB
77. ͓ΘΓʹ
78. ⚒ ։ൃ σϓϩΠ ςετ
79. ։ൃͷ͠΍͢͞Λอͭ ׂΕ૭Λ࡞Βͳ͍ͨΊʹ͸ɺ੹೚ऀͱࢦඪ͕ඞཁ 4
80. ʮ։ൃ͠΍͢͞ʯͷՁ஋ • ։ൃ͔ΒσϓϩΠ·ͰͷαΠΫϧ͕े෼ʹ଎͚Ε͹ɺ
 ʮຊ൪؀ڥΛ࢖ͬͨ։ൃʯ͕࣮ݱͰ͖Δ →Ϣʔβͱಉ͡ମݧͷதͰ։ൃ͢Δ • ։ൃ͠΍͢͞ʹ౤ࢿ͢ΔՁ஋͸े෼ʹ͋Δ • ݁Ռͱͯ͠։ൃ૊৫΋αʔϏε΋݈શͳঢ়ଶΛอͯΔ 'JO