Helm Chartリポジトリを2年半運用してわかったいろいろな話 - CloudNative Days Spring 2021 ONLINE #CNDO2021

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$-06%/"5*7&%":4413*/(0/-*/& )FMN$IBSUϦϙδτϦΛ೥൒ӡ ༻ͯ͠Θ͔͍ͬͨΖ͍Ζͳ࿩

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ొஃऀ঺հ ▸ Kouta Ozak i ▸ Chatwork, YAML Engineer

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Helm ChartϦϙδτϦ͸͡Ίͯ·͢

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Helm ChartϦϙδτϦ͸͡Ίͯ·͢

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Helm ChartϦϙδτϦ͸͡Ίͯ·͢

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01 )FMN$IBSUϦϙδτϦΛ࡞ͬͨཧ༝

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Helm ChartϦϙδτϦΛ࡞ͬͨཧ༝ $IBUXPSLͷ,VCFSOFUFTͷ؅ཧϑϩʔ

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Helm ChartϦϙδτϦΛ࡞ͬͨཧ༝ )FMN$IBSUϦϙδτϦΛ࡞ͬͨཧ༝ )FMN$IBSU͕ͳ͍ɺϢʔεέʔε͕߹Θͳ͍ͱ͖͕͋Δ ஫ೖͰ͖ͳ͍ઃఆ͕͋Δ ,VCFSOFUFTͷؔ৺ͱΞϓϦέʔγϣϯͷؔ৺Λ෼͚͔ͨͬͨ ެ։͢Δ͜ͱͰΫΦϦςΟΛίϯτϩʔϧ͔ͨͬͨ͠

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02 )FMN$IBSUϦϙδτϦͷ࡞Γํ

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Helm ChartϦϙδτϦͷ࡞Γํ $*Λ࢖ͬͨ)FMN$IBSUϦϙδτϦͷެ։ w $IBSUϦϙδτϦͰNBTUFSʹϚʔδͨ͠Β$JSDMF$*ͰδϣϒΛ࣮ߦ IFMNQBDLBHFͰύοέʔδΛੜ੒ IFMNSFQPJOEFYͰJOEFYZBNMΛੜ੒ HIQBHFTϒϥϯνʹ੒Ռ෺ΛQVTI w ࠓͳΒ(JU)VC"DUJPOͰ΋ͬͱ؆୯ʹͰ͖Δ͔΋

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w ϞϊϨϙߏ੒ͳͷͰࠩ෼͚ͩϏϧυͱ͔΋͍ͯ͠Δ w ࠷৽ͷϚʔδίϛοτ͔ΒલճͷϚʔδίϛοτ·Ͱͷࠩ෼Λݕ஌ w ͜ͷลΓ͸.BLF fi MFͰ͝Γԡͯ͠Δ w ࠓͳΒ(JU)VC"DUJPOͰ΋ͬͱ؆୯ʹͰ͖Δ͔΋ Helm ChartϦϙδτϦͷ࡞Γํ ϞϊϨϙߏ੒Ͱͷෳ਺ͷ$IBSUͷ؅ཧ

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03 )FMN$IBSUϦϙδτϦͰΑ͋͘Δ࡞ۀ

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,VCFSOFUFTͷ৽ػೳͰ$IBSUʹೖΕΔͱྑͦ͞͏ͳػೳΛ௥Ճ ,VCFSOFUFTͰEFQSFDBUFEʹͳͬͨػೳΛߋ৽ MJOUͰར༻͍ͯ͠ΔIFMNίϚϯυɺLVCFWBMͷεΩʔϚΛߋ৽ UFTUͰར༻͍ͯ͠ΔLJOEͷόʔδϣϯΛߋ৽ ˞جຊతʹ&,4ͷ࠷৽όʔδϣϯʹ௥ैͯ͠ߋ৽ Helm ChartϦϙδτϦͰΑ͋͘Δ࡞ۀ ,VCFSOFUFTΫϥελͷόʔδϣϯΞοϓରԠ

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w $IBSUͰར༻͍ͯ͠Δύϥϝʔλ͕มΘͬͨΓɺ,VCFSOFUFTͷߏ੒͕มΘΔΑ͏ͳͱ͖͚ͩΞοϓ σʔτ w ͨͩجຊతʹ͸஫ೖੑΛߴ͘औ͍ͬͯΔͷͰߋ৽͠ͳ͍ͱ͍͚ͳ͍έʔε͸͋Μ·Γͳ͍ w Ξοϓσʔτࣗମ΋&,4ͷΞοϓσʔτλΠϛϯά͔ؾ͕޲͍ͨ࣌ Helm ChartϦϙδτϦͰΑ͋͘Δ࡞ۀ ΞϓϦέʔγϣϯͷόʔδϣϯΞοϓ

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04 ྑ͍)FMN$IBSUͷॻ͖ํ

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ΞϓϦέʔγϣϯͷར༻ϢʔεέʔεΛຬ͍ͨͯ͠Δ %PDLFS)VCͳͲͷެࣜͰެ։͞Ε͍ͯΔΠϝʔδΛར༻Ͱ͖Δ Ұ௨Γͷ஋Λ஫ೖͰ͖Δ ΞϓϦέʔγϣϯͷઃఆɺ,VCFSOFUFTͷߏ੒Λ࿈ಈͰ͖Δ w ϙʔτͷ஫ೖͰΞϓϦέʔγϣϯͷϙʔτɺίϯςφϙʔτɺ4FSWJDFͷϙʔτɺ*OHSFTTͷϙʔ τΛ࿈ಈͰ͖Δͱ͔ ஫ೖͨ͠஋ΛUQMͰ࠶ల։Ͱ͖Δ )FMN$IBSUϦϙδτϦ͕ެ։͞Ε͍ͯΔɺIFMNHJUQMVHJOͰऔಘͰ͖ΔΑ͏ʹ5BHHJOH͞Ε͍ͯΔ ྑ͍Helm Chartͷॻ͖ํ ར༻ऀͱͯ͠خ͍͠)FMN$IBSU

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w ઃఆ஋͕ݻఆͳΞϓϦέʔγϣϯͷ)FMN$IBSUͱͯ͠ཧ૝ͱ͢Δઃܭ w FHIUUQTHJUIVCDPN%BUB%PHIFMNDIBSUTUSFFNBTUFSDIBSUTEBUBEPH w %BUBEPHͷ$IBSU͸ࣾ಺Ͱ͸੟ॻͱݺ͹Ε͍ͯΔ͘Β͍ૉ੖Β͍͠ w ͨͩ͠ɺΞϓϦέʔγϣϯͷΞοϓσʔτʹ௥ै͠ͳ͚Ε͹͍͚ͳ͍ͨΊҡ࣋͢Δͷ͕େม w 044ͳͲͰΞϓϦέʔγϣϯͱ)FMN$IBSUΛಉҰϦϙδτϦͰ؅ཧͰ͖ΔͳΒҡ࣋͠΍͍͔͢΋ ྑ͍Helm Chartͷॻ͖ํ WBMVFTͰશͯͷ஋ΛઃఆͰ͖Δ)FMN$IBSU

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w ઃఆ஋͕ಈతͳΞϓϦέʔγϣϯͷ)FMN$IBSUͰਪ঑͢Δઃܭ w FHIUUQTHJUIVCDPNDIBUXPSLDIBSUTUSFFNBTUFS fl VFOUE w ઃఆϑΝΠϧͷσϑΥϧτ஋ΛWBMVFTZBNMͰఆٛͯ͠ɺσϑΥϧτ஋Ͱ͏·͘Ͱ͖ͳ͍έʔεͰ͸্ ॻ͖Ͱ͖ΔΑ͏ʹ͢Δ w σϑΥϧτͷ஋ͷઃఆϑΝΠϧΛ࢖͏͔͗Γ,VCFSOFUFTͷϦιʔεͱ࿈ಈͰ͖Δ ྑ͍Helm Chartͷॻ͖ํ ઃఆϑΝΠϧΛ஫ೖͰ͖Δ)FMN$IBSU

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w ,VCFSOFUFTͷϦιʔεʹ஫໨ͯ͠൚༻తʹѻ͑ΔΑ͏ʹ͢Δઃܭ w FHIUUQTHJUIVCDPNIFMNDIBSUTUSFFNBTUFSTUBCMFMBNQ w தͰಈ͘ΞϓϦέʔγϣϯʹ͸ґଘ͠ͳ͍ w ԣల։͕ඞཁͳ΋ͷͱ͔ʹ͔ͳΓޮՌߴ͍ w Α͋͘Δ8FCΞϓϦέʔγϣϯͱ͔΄΅ಉ͡ߏ੒ʹͳΔ w *OHSFTTɺ4FSWJDFɺ%FQMPZNFOUɺ$PO fi H.BQɺ4FDSFUɺ1%#ɺ)1"ɺ3PMFɺ 3PMF#JOEJOHTɺ4" ྑ͍Helm Chartͷॻ͖ํ ൚༻తʹ࢖͍·ΘͤΔ)FMN$IBSU

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w WBMVFTͷ໊લ͸)FMN$IBSUͰ࢖ΘΕΔҰൠతͳ໊લ͕͍͍ w BVUPTDBMJOHͰ)1"ɺNFUSJDTͰ1SPNFUIFVTͷ༗ޮԽͱ͔ͱ͔ w FYUSB999ܥ͸ఆܕ۟ w FYUSB&OWɺFYUSB7PMVNFTɺFYUSB7PMVNF.PVOUT w WBMVFTͰద੾ʹ஫ೖͰ͖ΔΑ͏ʹͯ͠΋૝ఆ֎ͷέʔεͷͨΊʹ༻ҙ͓ͯ͘͠ͱ͍͍ w $PO fi H.BQ4FDSFUT࢖͏ͱ͖͸1PEͷBOOPUBUJPOTʹϋογϡΛೖΕΔ w UQMల։͸΍Γ͗͢ͳ͍ w Ұ౓΍Γ͗ͯ͢Έ͚ͨͲେมɻ࿙Ε͕͋ͬͨΓߏ଄ʹΑͬͯUQMల։͠ʹ͔ͬͨ͘Γ ྑ͍Helm Chartͷॻ͖ํ ͦͷଞͷࡉ͔͍࿩

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05 )FMN$IBSUͷ඼࣭؅ཧ

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w $IBUXPSLͰҰ൪मਖ਼ͯ͠Δˍࢦఠͯ͠Δ w Πϯσϯτ่͕ΕΔͱ:".-ͱͯ͠ෆਖ਼ͳঢ়ଶʹͳΔ͔ɺ,VCFSOFUFTͷ4DIFNBͱζϨΔ w \\cOJOEFOUYYY^^ͷॻ͖ํͰͳ͔ͬͨΒ·ͣόάͱٙ͏ w \\cOJOEFOUYYY^^ͷॻ͖ํͰYYYͱͦͷߦͷΠϯσϯτ͕͋ͬͯΔ͔͸ඞͣνΣοΫ͢Δ Helm Chartͷ඼࣭؅ཧ )FMN$IBSUͷҰ൪Α͋͘Δϛε͸Πϯσϯτ่͕ΕΔ͜ͱ

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w $*Ͱ͜ͷΠϯσϯτͷ่Ε͸νΣοΫ͍ͯ͠Δ w OJOEFOU࢖͏࣌͸ඞͣ\\^^ͷॻ͖ํʹͳͬͯΔ͔νΣοΫ w OJOEFOUͰࢦఆͨ͠Πϯσϯτ਺ͱͦͷߦͷΠϯσϯτ͕Ұக͍ͯ͠Δ͔νΣοΫ w γΣϧεΫϦϓτͰΰϦԡ͠ w IUUQTHJUIVCDPNDIBUXPSLDIBSUTCMPCNBTUFSDJSDMFDJMJOUDIBSUTI w (PUFNQMBUF:".-ͷMJOUFS͕ཉ͍͠ Helm Chartͷ඼࣭؅ཧ )FMN$IBSUͷҰ൪Α͋͘Δϛε͸Πϯσϯτ่͕ΕΔ͜ͱ

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w 13Ͱมߋ͕͋ͬͨ$IBSU͸$IBSUZBNMͷόʔδϣϯ͕มΘ͍ͬͯΔ͔$*ͰνΣοΫ w IUUQTHJUIVCDPNDIBUXPSLDIBSUTCMPCNBTUFSDJSDMFDJDIFDLWFSTJPOTI w όʔδϣϯΛॻ͖׵͑ͳ͍ͱݹ͍όʔδϣϯ্͕ॻ͖͞Εͯ͠·͏ w ͜ͷνΣοΫೖΕΔ·Ͱ݁ߏࣄނͬͯͨ w IFMNDIBSUTʹ΋ೖ͙ͬͯͨΒ͍େࣄ Helm Chartͷ඼࣭؅ཧ $IBSUͷόʔδϣϯνΣοΫ

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w IFMNʹMJOUͷػೳ͕͋ΔͷͰ$*Ͱճ͍ͯ͠Δ w IUUQTIFMNTIEPDTIFMNIFMN@MJOU w $IBSUZBNMͷඞਢνΣοΫɺόʔδϣϯͷॻࣜνΣοΫ w WBMVFTTDIFNBKTPOͰͷWBMVFTZBNMͷνΣοΫ w OVMM஋ͷνΣοΫ w EFQSFDBUFEͳ,VCFSOFUFT"1*7FSTJPOͷνΣοΫ w IUUQTHJUIVCDPNIFMNIFMNCMPC GFFFFEDBDBBCFFGDCECQLHMJOUSVMFTEFQSFDBUJPOTHP w ର৅ͷ,VCFSOFUFTͷόʔδϣϯ͸IFMNͷόʔδϣϯʹΑͬͯݻఆ͞ΕΔͷͰ஫ҙ Helm Chartͷ඼࣭؅ཧ IFMNMJOUΛ࢖ͬͨMJOU

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w LVCFWBMΛ࢖ͬͯ,VCFSOFUFTͷ4DIFNBͱҰக͢Δ͔$*ͰνΣοΫ w IUUQTHJUIVCDPNJOTUSVNFOUBLVCFWBM w UZQP΍Πϯσϯτ่Εɺܕͷؒҧ͍ΛνΣοΫ w LVCFWBMͰར༻͍ͯ͠ΔLVCFSOFUFTKTPOTDIFNB͸શͯͷόʔδϣϯʹରԠ͍ͯ͠ͳ͍ w IUUQTHJUIVCDPNJOTUSVNFOUBLVCFSOFUFTKTPOTDIFNB w 13΋ड͚෇͚ͯͳ͍ঢ়ଶͳͷͰGPSL͍ͯ͠Δ w IUUQTHJUIVCDPNDXP[BLJLVCFSOFUFTKTPOTDIFNB w ࠷৽ͷόʔδϣϯʹݶΓࣗಈͰεΩʔϚΛੜ੒͢Δ࢓૊Έ͕ೖ͍ͬͯΔ Helm Chartͷ඼࣭؅ཧ LVCFWBMΛ࢖ͬͨMJOU

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w $*؀ڥͰLJOEΛཱͯͯIFMNJOTUBMMɺIFMNUFTUΛ࣮ߦ͍ͯ͠Δ w ࣮ࡍʹΠϯετʔϧ͠ͳ͍ͱݕ஌Ͱ͖ͳ͍έʔε͕͋Δ w MJWFOFTTSFBEJOFTTͷઃఆϛε w WPMVNFTɺWPMVNF.PVOUTͷઃఆϛε w ࣮ࡍʹςετΛ͠ͳ͍ͱݕ஌Ͱ͖ͳ͍έʔε͕͋Δ w *OHSFTT4FSWJDF1PEͷTFMFDUPSܥ w ΞϓϦέʔγϣϯͷڍಈ w LJOEࣗମ͸෼ඵ͙Β͍Ͱ্ཱ͕ͪΔͷͰૣ͍ w $JSDMF$*ͩͱ͋·Γ$IBSUΛΠϯετʔϧ͗͢͠Δͱෆ҆ఆʹͳΓ΍͍͢ͷͰ஫ҙ Helm Chartͷ඼࣭؅ཧ LJOEΛ࢖ͬͨJOTUBMMɺUFTU

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06 )FMN$IBSUϦϙδτϦͰকདྷ΍Γ͍ͨ͜ͱ

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w $IBSUΛॻ͍͍͕ͯͯ͜͜Ұ൪ͷۤߦ w ৽͍͠$IBSU͕࡞ΒΕΔͱ୰͘ਓ͕ग़ͯ͘Δ w ஍ຯʹ3&"%.&NEͱWBMVFTZBNMζϨ͍ͯΔέʔε΋͋ͬͯɺ)FMN$IBSUʹ׳ΕΔͱWBMVFTZBNM ͱUFNQMBUFT͔͠ಡ·ͳ͍ͷͰ΋͏͍Βͳ͍ͷͰ͸ͱࢥΘͳ͘΋ͳ͍ Helm ChartϦϙδτϦͰকདྷ΍Γ͍ͨ͜ͱ 3&"%.&NEͷࣗಈੜ੒

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w WBMVFTZBNMͱWBMVFTTDIFNBKTPOͱ3&"%.&NEͱಉ͡Α͏ͳ͜ͱΛճॻ͔ͳ͚Ε͹͍͚ͳ͍ۤ ߦ w WBMVFTTDIFNBKTPOΛॻ͘ͱIFMNMJOUͰWBMVFTZBNMͷݕূͰ͖ΔͷͰ඼࣭Λ޲্Ͱ͖Δ w ·ͨ.BOJGFTUϦϙδτϦͰ$IBSUΛར༻͢Δͱ͖ʹ஫ೖ͢Δ஋ͷνΣοΫ΋Ͱ͖ΔͷͰɺ஫ೖϛεΛ ݮΒ͢͜ͱ͕Ͱ͖Δ w ͋Δͱศར͚ͩͲҡ࣋͢Δͷ͕ਏ͗͢Δ Helm ChartϦϙδτϦͰকདྷ΍Γ͍ͨ͜ͱ WBMVFTTDIFNBKTPOͷࣗಈੜ੒

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w ΞϓϦέʔγϣϯͷϦϦʔεʹ߹ΘͤͯBQQ7FSTJPOͱJNBHFͷλάΛࣗಈͰߋ৽ͯ͠13Λ࡞Γ͍ͨ w ͦͷͱ͖ʹ(JU)VC3FMFBTFͷ಺༰Λ13ͷຊจʹషΕΔͱྑ͍ײ͡ w WBSJBOUEFWNPEͰͦ͏͍͏ػೳͷαϙʔτ͕ೖ͍ͬͯΔ w IUUQTHJUIVCDPNWBSJBOUEFWNPESFMFBTFTUBHW w ಛʹࠔ͍ͬͯΔΘ͚Ͱ͸ͳ͍͚Ͳɺৗʹ࠷৽όʔδϣϯͷ$IBSUΛ४උͰ͖Δͱ࣮ӡ༻࣌ͷ࠷৽όʔ δϣϯ΁ͷ௥ै͕΍Γ΍͍͢ w ͨͩ͠ɺස౓ʹΑͬͯ͸13͕ཷ·Γ͗ͯ͢ࠅ͍͜ͱʹͳΔͷ͕ݟ͍͑ͯΔͷͰ೰·͍͠ Helm ChartϦϙδτϦͰকདྷ΍Γ͍ͨ͜ͱ ΞϓϦέʔγϣϯͷϦϦʔεʹ߹Θͤͨ13ͷࣗಈ࡞੒

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07 ·ͱΊ

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·ͱΊ ݕࡧʹ͔͔Βͳ͍͚Ͳ)FMN$IBSUϦϙδτϦΛӡ༻͍ͯ͠ΔΑʂ )FMN$IBSUϦϙδτϦ࡞Δͷ͸؆୯ͩΑʂʂ Ͱ΋ྑ͍)FMN$IBSUΛ࡞Δʹ͸݁ߏ΍Δ͜ͱ͋ΔΑʂʂʂ

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