How we reduced cold start time of Cloud Functions at Ginco Inc.

(JODPʹ͓͚Δ$MPVEGVODUJPOT ͷར༻ͱͦͷߴ଎Խ G I N C O E N G
I N E E R M E E T U P S O I C H I S U M I 2 0 1 8 / 1 0 / 4 / T H U

A B O U T M Y S E L
F ©2018 Ginco, Inc. ࣗݾ঺հ Soichi Sumi @_yoyoyousei େࡕେֶେֶӃ$4ઐ߈मྃɻϓϩάϥϜࣗಈमਖ਼ͷߴ଎Խख๏ͷఏҊͱධ ՁΛߦ͏ɻͦͷޙɺϦΫϧʔτϗʔϧσΟϯάεʹ৽ଔೖࣾ͠ɺΞʔΩς ΫτνʔϜϝϯόʔͱͯ͠ɺೝূػߏͳͲͷઃܭɾ։ൃΛߦͬͨɻ ೥݄͔Β͸גࣜձࣾ(JODPͰΠϯϑϥߏஙɾӡ༻ɺ"1*αʔόͷ։ ൃΛ୲౰ɻ

©2018 Ginco, Inc. ࠓճ࿩͢͜ͱ • $MPVEGVODUJPOTͱ͸ • (JODPͰͷ$MPVEGVODUJPOTͷར༻ࣄྫ • ࢖͍࢝Ίͯ෼͔ͬͨ໰୊఺ͱͦͷରࡦ
• ࠓޙऔΓ૊Έ͍ͨ͜ͱ

©2018 Ginco, Inc. $MPVEGVODUJPOTͱ͸ • (PPHMF͕ఏڙ͢ΔϑϧϚωʔδυͳؔ਺࣮ߦ؀ڥ • τϦΨʔͱ࣮ߦ͢Δؔ਺Λهड़ͯ͠"1*Λ࣮૷͢Δ ར఺ •
ϦΫΤετʹର͢ΔॲཧΛॻ͚ͩ͘ɻ؆୯ • σϓϩΠ͞Εͨݸʑͷؔ਺͸׬શʹҟͳΔ؀ڥͰ࣮ߦ͞ΕΔ • ͋Δؔ਺ͷमਖ਼͕ଞͷؔ਺΁ӨڹΛ༩͑ͳ͍ • େن໛ʹͳͬͯ΋ػೳ௥Ճɾमਖ਼͕༰қ • ϦΫΤετྔʹԠͯ͡Φʔτεέʔϧ͢Δ • τϦΨʔͷछྨ͕๛෋

©2018 Ginco, Inc. ࣮૷ྫ)551τϦΨʔ const functions = require(‘firebase-functions'); exports.httpFunc =
functions.https.onRequest((req, res) => { return res.status(200).json({ result: “result” }); }); 2. index.js ࣮૷ 3. σϓϩΠ test-MacBookPro% firebase deploy 1. ॳظԽ test-MacBookPro% firebase init

©2018 Ginco, Inc. (JODPͰͷ$MPVEGVODUJPOTͷར༻ K u b e r n
e t e s B l o c k c h a i n N o d e s C l o u d f i r e s t o r e C l o u d f u n c t i o n s G i n c o B i g Q u e r y C l o u d S t o r a g e C l o u d m e s s a g i n g 1.֤ϒϩοΫνΣʔϯϊʔυͷ31$ݺͼग़͠ 2.Ϛʔέοτ৘ใऔಘ 3.ϓογϡ௨஌ 4.'JSFTUPSFͷఆظόοΫΞοϓ#JH2VFSZ࿈ܞ ᶃ ᶄ ᶅ ᶆ

©2018 Ginco, Inc. $MPVEGVODUJPOTͷ࢓૊Έ Routing ࢀ ߟ L
i f e o f a S e r v e r l e s s E v e n t : U n d e r t h e H o o d o f S e r v e r l e s s o n G C P h t t p s : / / y o u t u . b e / M B B Q 6 P 3 G a u Y ۭ ͖ Π ϯ ε λ ϯ ε ͕ ͋ Δ ৔ ߹

i f e o f a S e r v e r l e s s E v e n t : U n d e r t h e H o o d o f S e r v e r l e s s o n G C P h t t p s : / / y o u t u . b e / M B B Q 6 P 3 G a u Y ʴ ۭ ͖ Π ϯ ε λ ϯ ε ͕ ແ ͍ ৔ ߹ $ P M E T U B S U

i f e o f a S e r v e r l e s s E v e n t : U n d e r t h e H o o d o f S e r v e r l e s s o n G C P h t t p s : / / y o u t u . b e / M B B Q 6 P 3 G a u Y ௕ ͍ ؒ Ϧ Ϋ Τ ε τ Λ ॲ ཧ ͠ ͯ ͍ ͳ ͍ Π ϯ ε λ ϯ ε ͕ ͋ Δ ৔ ߹

©2018 Ginco, Inc. $MPVEGVODUJPOTͷ$PMETUBSUͷվળ • $PMETUBSU͸࢓૊Έ্ආ͚ΒΕͳ͍͕ɺܰݮ͢Δ͜ͱ ͸Ͱ͖Δ • ԼهରࡦΛߦͬͨ •
άϩʔόϧείʔϓͰͷSFRVJSFͷআڈ • ґଘϥΠϒϥϦͷόʔδϣϯΞοϓ

©2018 Ginco, Inc. άϩʔόϧείʔϓͷSFRVJSFͷআڈ exports.Func1 = require('./funcs/func1'); exports.Func2 = require('./funcs/func2');
exports.Func3 = require('./funcs/func3'); exports.Func4 = require('./funcs/func4'); ... ࣮ ૷ ྫ - म ਖ਼ લ i n d e x . j s const functions = require('firebase-functions'); const admin = require('firebase-admin'); admin.initializeApp(functions.config().firebase); const db = admin.firestore(); module.exports = functions.https.onRequest((req, res)=>{ // ...... }); f u n c s / f u n c 1 . j s const functions = require('firebase-functions') const google = require('googleapis'); const rp = require('request-promise'); const projectId = process.env.GCLOUD_PROJECT; module.exports = functions.storage  .bucket(`${projectId}-bucket`) .object() .onFinalize((obj)=>{ // ...... }); f u n c s / f u n c 2 . j s Ͳ ͷ ؔ ਺ Λ ࣮ ߦ ͢ Δ ৔ ߹ Ͱ ΋ ɺ ͢ ΂ ͯ ͷ ؔ ਺ ͕ ϩ ʔ υ ͞ Ε Δ

©2018 Ginco, Inc. άϩʔόϧείʔϓͷSFRVJSFͷআڈ if (!process.env.FUNCTION_NAME || process.env.FUNCTION_NAME === 'Func1')
{ exports.Func1 = require('./funcs/func1'); } if (!process.env.FUNCTION_NAME || process.env.FUNCTION_NAME === 'Func2') { exports.Func2 = require('./funcs/func2'); } ... ࣮ ૷ ྫ - म ਖ਼ ޙ i n d e x . j s ؔ ਺ ࣮ ߦ ࣌ ʹ ͸ ؀ ڥ ม ਺ ʹ ؔ ਺ ໊ ͕ ೖ Δ ͦ Ε Ҏ ֎ ͷ ৔ ߹ ɺ F U N C T I O N _ N A M E ͸ ۭ σ ϓ ϩ Π ࣌ ʹ ͸ ͢ ΂ ͯ ͷ ؔ ਺ ͕ ϩ ʔ υ ͞ Ε ɺ ࣮ ߦ ࣌ ʹ ͸ ࣮ ߦ ର ৅ ͷ ؔ ਺ ͷ Έ ͕ ϩ ʔ υ ͞ Ε Δ ʂ

©2018 Ginco, Inc. ґଘϞδϡʔϧͷόʔδϣϯΞοϓ • $MPVEGVODUJPOT͸ϞδϡʔϧΛΩϟογϡ͠ɺશͯͷؔ਺Ͱ ڞ༗͍ͯ͠Δ • Ϟδϡʔϧ͕Ωϟογϡʹ͋Ε͹ϥΠϒϥϦͷϩʔυ࣌ؒΛ୹ ॖͰ͖Δ
• ՄೳͳΒ৽͍͠όʔδϣϯͷϞδϡʔϧΛ࢖͏Α͏मਖ਼ • ϞδϡʔϧΛ࠷৽ʹΞοϓσʔτͨ͠

©2018 Ginco, Inc. ࣮ݧ • ରࡦͷ࣮ࢪલޙͰϨεϙϯε࣌ؒΛܭଌ • ࣮ݧର৅͸#JUDPJOͷ5YΛϒϩʔυΩϟετ͢Δ"1* • ϩʔΧϧ1$͔ΒճϦΫΤετΛૹΓɺͦͷฏۉ஋Λൺֱ͢Δ
• σϓϩΠ௚ޙͷϨεϙϯεΛ$PMETUBSU࣌ͷϨεϙϯεɺͦΕ Ҏ߱ͷϨεϙϯεΛ௨ৗ࣌ͷϨεϙϯεͱͨ͠

©2018 Ginco, Inc. ݁Ռ • $PMETUBSU͕վળͨ͠ɻ௨ৗ࣌ͷϨεϙϯε͸΄΅มΘΒͣ • $PMETUBSUTFDˠTFD • ௨ৗ࣌NTFDˠNTFD
• վળͷେ෦෼͸ඞཁʹͳͬͨஈ֊ͰͷSFRVJSFʹΑΔ΋ͷͩͬͨ • ͔͠͠ɺ·ͩ஗͍ $PMETUBSU /PSNBM վળલ վળޙ

©2018 Ginco, Inc. Ϧʔδϣϯͷมߋ • ݄Լ०ʹ$MPVEGVODUJPOTͷ౦ژϦʔδϣϯ͕ ௥Ճ͞Εͨ • ಋೖ౰࣌͸ถࠃϦʔδϣϯͷΈ •
౦ژϦʔδϣϯͰ΋࣮ݧ

©2018 Ginco, Inc. ࣮૷ྫϦʔδϣϯͷมߋ const functions = require('firebase-functions'); module.exports =
functions.region(‘asia-northeast1') .https .onRequest((req, res) => { // …… }); i n d e x . j s ͜ ͜ Λ ௥ Ճ ͢ Δ ͩ ͚ ʂ

©2018 Ginco, Inc. ݁Ռ • $PMETUBSU΋௨ৗ࣌΋଎͘ͳͬͨ • $PMETUBSUTFDˠTFD • ௨ৗ࣌NTFDˠNTFD
• ௨ৗ࣌ͷϨεϙϯε͸͔ͳΓྑ͘ͳ͕ͬͨɺ$PMETUBSU͸·ͩ஗͍ $PMETUBSU /PSNBM վળલ DPMETUBSUରࡦ Ϧʔδϣϯมߋ

©2018 Ginco, Inc. ࢒ΔϘτϧωοΫ • $PMETUBSUͷϘτϧωοΫΛௐࠪͨ͠ • pSFTUPSFͷճ໨ͷHFU ͰTFD͔͔͍ͬͯͨ ʂ
• JTTVFΛௐࠪ͢ΔͱɺpSFTUPSFͷDMJFOUʹ΋DPMETUBSU͕͋Δ͜ ͱ͕෼͔ͬͨ • ղܾʹ͸࣌ؒΛཁ͢ΔΑ͏ͳͷͰɺճආ͢Δ h t t p s : / / g i t h u b . c o m / f i r e b a s e / f i r e b a s e - f u n c t i o n s / i s s u e s / 2 6 3

©2018 Ginco, Inc. $MPVEpSFTUPSFͷ$PMETUBSUͷճආ • શͯͷ'VODUJPOͰɺॲཧͷ࠷ॳʹ'JSFTUPSF΁ͷ໰͍߹ΘͤΛߦͬ ͍ͯͨ • (JODPϢʔβ͔ΒͷϦΫΤετ͔ݕূ͢ΔͨΊ •
PO$BMMτϦΨʔΛ࢖͍ɺϢʔβೝূΛ'JSFCBTF"VUIFOUJDBUJPO ʹ೚ͤΔ͜ͱͰ'JSFTUPSFͷ໰͍߹ΘͤΛऔΓআ͍ͨ

©2018 Ginco, Inc. PO$BMMτϦΨʔ • ΞϓϦͳͲ͔Β'VODUJPOΛ௚઀ݺͼग़ͨ͢ΊͷτϦΨʔ • 'JSFCBTF"VUIFOUJDBUJPOͰೝূঢ়ଶͷ৔߹ͷΈ'VODUJPO͕ ୟ͚ΔΑ͏ೝূνΣοΫ͕ೖΔ •
'VODUJPOͷࢦఆ͸ؔ਺໊ͱϦʔδϣϯͰߦ͏

©2018 Ginco, Inc. ࣮૷ྫPO$BMMτϦΨʔ const functions = require('firebase-functions') exports.Func1 =
functions.region('asia-northeast1') .https.onCall((data, ctx) => { // ...... }) i n d e x . j s C a l l F u n c 1 . s w i f t o n R e q u e s t → o n C a l l ΁ ม ߋ let functions = Functions.functions(region: "asia-northeast1") functions.httpsCallable(“Func1”).call([“data": “hoge”]) {(result, error) in } Ϧ ʔ δ ϣ ϯ Λ ࢦ ఆ ͠ ͯ F u n c t i o n s Π ϯ ε λ ϯ ε Λ ࡞ ੒ ͠ ɺ ؔ ਺ ໊ Λ ࢦ ఆ

©2018 Ginco, Inc. ݁Ռ • $PMETUBSU΋௨ৗ࣌΋े෼଎͘ͳͬͨ • $PMETUBSUTFDˠTFD • ௨ৗ࣌NTFDˠNTFD
• վળલͱൺ΂Δͱ • $PMETUBSUTFD࡟ݮ • ௨ৗ࣌NTFD࡟ݮ $PMETUBSU OPSNBM վળલ $PMETUBSUରࡦ Ϧʔδϣϯมߋ PO$BMMτϦΨʔ

©2018 Ginco, Inc. ࠓޙऔΓ૊Έ͍ͨ͜ͱ • 'VODUJPOTͷϥϯλΠϜΛ(Pʹมߋ • ϥϯλΠϜىಈ΋ϥΠϒϥϦͷϩʔυ΋ૣ͘ͳΔ • 'JSFTUPSFΛෳ਺ϦʔδϣϯͰ΋ར༻
• ݱࡏ͸ถࠃͷϚϧνϦʔδϣϯ • ϚϧνϦʔδϣϯͷϩέʔγϣϯʹΞδΞ͕௥Ճ͞ΕΔ͜ͱʹظ଴ • ΠϯελϯεؒͰσʔλͷҰ؏ੑΛऔΔඞཁ͕ग़ͯ͘Δ͔΋

©2018 Ginco, Inc. ·ͱΊ • (JODPͰͷ$MPVEGVODUJPOͷར༻ࣄྫΛ঺հͨ͠ • $MPVEGVODUJPOTͷ࢓૊ΈΛղઆͨ͠ • ࢖͍࢝Ίͯ෼͔ͬͨ໰୊఺ͱͦͷରࡦΛ঺հͨ͠
• $PMETUBSUTFD࡟ݮ • ௨ৗ࣌NTFD࡟ݮ • ࠓޙऔΓ૊Έ͍ͨ͜ͱΛ঺հͨ͠ • 'VODUJPOTͷϥϯλΠϜΛ(P΁มߋ • 'JSFTUPSFΛෳ਺ϦʔδϣϯͰར༻

How we reduced cold start time of Cloud Functio...

How we reduced cold start time of Cloud Functions at Ginco Inc.

Soichi Sumi

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(JODPʹ͓͚Δ$MPVEGVODUJPOT ͷར༻ͱͦͷߴ଎Խ G I N C O E N G

A B O U T M Y S E L

©2018 Ginco, Inc. ࠓճ࿩͢͜ͱ • $MPVEGVODUJPOTͱ͸ • (JODPͰͷ$MPVEGVODUJPOTͷར༻ࣄྫ • ࢖͍࢝Ίͯ෼͔ͬͨ໰୊఺ͱͦͷରࡦ

©2018 Ginco, Inc. $MPVEGVODUJPOTͱ͸ • (PPHMF͕ఏڙ͢ΔϑϧϚωʔδυͳؔ਺࣮ߦ؀ڥ • τϦΨʔͱ࣮ߦ͢Δؔ਺Λهड़ͯ͠"1*Λ࣮૷͢Δ ར఺ •

©2018 Ginco, Inc. ࣮૷ྫ)551τϦΨʔ const functions = require(‘firebase-functions'); exports.httpFunc =

©2018 Ginco, Inc. (JODPͰͷ$MPVEGVODUJPOTͷར༻ K u b e r n

©2018 Ginco, Inc. ࢖͍࢝Ίͯ෼͔ͬͨ໰୊఺ • GVODUJPOͷ਺͕૿͑ΔʹͭΕɺϨεϙϯε͕஗͘ͳΔ • pSFTUPSFʹ઀ଓ͢ΔGVODUJPO͸ಛʹ஗͍৔߹͕͋Δ • ࠷΋஗͍৔߹Ͱ໿TFD

©2018 Ginco, Inc. Ϩεϙϯε͕஗͍ݪҼ • $MPVEGVODUJPOTͷ$PMETUBSU • 'VODUJPOͷϦʔδϣϯ͕64 • $MPVEpSFTUPSFͷDMJFOUͷ$PMETUBSU

©2018 Ginco, Inc. $MPVEGVODUJPOTͷ࢓૊Έ Routing ࢀ ߟ L

©2018 Ginco, Inc. $MPVEGVODUJPOTͷ࢓૊Έ Routing ࢀ ߟ L

©2018 Ginco, Inc. $MPVEGVODUJPOTͷ࢓૊Έ Routing ࢀ ߟ L

©2018 Ginco, Inc. $MPVEGVODUJPOTͷ$PMETUBSUͷվળ • $PMETUBSU͸࢓૊Έ্ආ͚ΒΕͳ͍͕ɺܰݮ͢Δ͜ͱ ͸Ͱ͖Δ • ԼهରࡦΛߦͬͨ •

©2018 Ginco, Inc. άϩʔόϧείʔϓͰͷSFRVJSFͷআڈ • $MPVEGVODUJPOT͸$PMETUBSU࣌ʹJOEFYKTΛϩʔυ͢Δ • ͭͷؔ਺Λ࣮ߦ͢Δ৔߹ʹ΋શͯͷؔ਺͕ಡΈࠐ·ΕΔ • ࣮ߦ͢Δؔ਺Ҏ֎ͷSFRVJSFΛߦΘͳ͍Α͏मਖ਼ͨ͠

©2018 Ginco, Inc. άϩʔόϧείʔϓͷSFRVJSFͷআڈ exports.Func1 = require('./funcs/func1'); exports.Func2 = require('./funcs/func2');

©2018 Ginco, Inc. άϩʔόϧείʔϓͷSFRVJSFͷআڈ if (!process.env.FUNCTION_NAME || process.env.FUNCTION_NAME === 'Func1')

©2018 Ginco, Inc. ґଘϞδϡʔϧͷόʔδϣϯΞοϓ • $MPVEGVODUJPOT͸ϞδϡʔϧΛΩϟογϡ͠ɺશͯͷؔ਺Ͱ ڞ༗͍ͯ͠Δ • Ϟδϡʔϧ͕Ωϟογϡʹ͋Ε͹ϥΠϒϥϦͷϩʔυ࣌ؒΛ୹ ॖͰ͖Δ

©2018 Ginco, Inc. ࣮ݧ • ରࡦͷ࣮ࢪલޙͰϨεϙϯε࣌ؒΛܭଌ • ࣮ݧର৅͸#JUDPJOͷ5YΛϒϩʔυΩϟετ͢Δ"1* • ϩʔΧϧ1$͔ΒճϦΫΤετΛૹΓɺͦͷฏۉ஋Λൺֱ͢Δ

©2018 Ginco, Inc. ݁Ռ • $PMETUBSU͕վળͨ͠ɻ௨ৗ࣌ͷϨεϙϯε͸΄΅มΘΒͣ • $PMETUBSUTFDˠTFD • ௨ৗ࣌NTFDˠNTFD

©2018 Ginco, Inc. Ϧʔδϣϯͷมߋ • ݄Լ०ʹ$MPVEGVODUJPOTͷ౦ژϦʔδϣϯ͕ ௥Ճ͞Εͨ • ಋೖ౰࣌͸ถࠃϦʔδϣϯͷΈ •

©2018 Ginco, Inc. ࣮૷ྫϦʔδϣϯͷมߋ const functions = require('firebase-functions'); module.exports =

©2018 Ginco, Inc. ݁Ռ • $PMETUBSU΋௨ৗ࣌΋଎͘ͳͬͨ • $PMETUBSUTFDˠTFD • ௨ৗ࣌NTFDˠNTFD

©2018 Ginco, Inc. ࢒ΔϘτϧωοΫ • $PMETUBSUͷϘτϧωοΫΛௐࠪͨ͠ • pSFTUPSFͷճ໨ͷHFU ͰTFD͔͔͍ͬͯͨ ʂ

©2018 Ginco, Inc. $MPVEpSFTUPSFͷ$PMETUBSUͷճආ • શͯͷ'VODUJPOͰɺॲཧͷ࠷ॳʹ'JSFTUPSF΁ͷ໰͍߹ΘͤΛߦͬ ͍ͯͨ • (JODPϢʔβ͔ΒͷϦΫΤετ͔ݕূ͢ΔͨΊ •

©2018 Ginco, Inc. PO$BMMτϦΨʔ • ΞϓϦͳͲ͔Β'VODUJPOΛ௚઀ݺͼग़ͨ͢ΊͷτϦΨʔ • 'JSFCBTF"VUIFOUJDBUJPOͰೝূঢ়ଶͷ৔߹ͷΈ'VODUJPO͕ ୟ͚ΔΑ͏ೝূνΣοΫ͕ೖΔ •

©2018 Ginco, Inc. ࣮૷ྫPO$BMMτϦΨʔ const functions = require('firebase-functions') exports.Func1 =

©2018 Ginco, Inc. ݁Ռ • $PMETUBSU΋௨ৗ࣌΋े෼଎͘ͳͬͨ • $PMETUBSUTFDˠTFD • ௨ৗ࣌NTFDˠNTFD

©2018 Ginco, Inc. ࠓޙऔΓ૊Έ͍ͨ͜ͱ • 'VODUJPOTͷϥϯλΠϜΛ(Pʹมߋ • ϥϯλΠϜىಈ΋ϥΠϒϥϦͷϩʔυ΋ૣ͘ͳΔ • 'JSFTUPSFΛෳ਺ϦʔδϣϯͰ΋ར༻

©2018 Ginco, Inc. ·ͱΊ • (JODPͰͷ$MPVEGVODUJPOͷར༻ࣄྫΛ঺հͨ͠ • $MPVEGVODUJPOTͷ࢓૊ΈΛղઆͨ͠ • ࢖͍࢝Ίͯ෼͔ͬͨ໰୊఺ͱͦͷରࡦΛ঺հͨ͠