Argo CD で GitOps してみた

"SHP$%Ͱ(JU0QTͯ͠Έͨ ,VCFSOFUFT/PWJDF5PLZP"VH CZQPSJO

pon ( @po3rin ) ݕࡧͱ͔΍ΔσʔλΤϯδχΞɻ (PΛΑ͘ॻ͘ɻίϯςφ΋޷͖ɻ

Introduction \

&,4Ͱӡ༻ͯ͠Δϒϩά✌ QPSJODPN

ϒϩάͷΞʔΩςΫνϟ✌

Solution \

(JU0QT͸Ϋϥ΢υωΠςΟϒͳΞϓϦͷ ܧଓతσϓϩΠΛ࣮૷͢Δํ๏ͷҰͭͰ ͢ɻΠϯϑϥετϥΫνϟΛϦϙδτϦ ಺ʹهड़͞Εͨঢ়ଶʹҰகͤ͞ΔࣗಈԽ ϓϩηεΛ࣮ߦ͠·͢ɻ 8IBU`T(JU0QT

͜Ε͕σϓϩΠͷཧ૝ܗɻ(JU)VCʹLTͷϚχϑΣετΛมߋͯ͠QVTIͨ͠ΒɺͦΕ͕൓ө͞ΕΔɻ (JU0QT 1VTI 8BUDI4ZOD

͜ͷΑ͏ͳ(JU0QTΛ࣮ݱ͢Δ"SHP$%ͳͲͷΦʔϓϯιʔε͕ଟ਺ଘࡏ͢Δɻ (JU0QT 1VTI 8BUDI 4ZOD

Flux CD ͱ Argo CD ͸ɺGitOps Λ࣮ݱ͢ΔͨΊ ͷΦʔϓϯιʔεͷπʔτοϓͰ͢ɻ (JU0QT

"SHP$%͸લ৬Ͱ࢖͓ͬͯΓɺࣗ෼Ͱ΋ ઃఆͰ͖ΔΑ͏ʹͳ͓͖͍ͬͯͨͱ͍͏ ҆௚ͳཧ༝Ͱϒϩάʹ"SHP$%Λ࠾༻ɻ "SHP$%

"SHP$%͸(JU)VCͷϦϙδτϦΛৗʹXBUDI͠ɺݱঢ়ͱͷࠩ෼Λݕ஌͠ɺઃఆΛࣗಈ·ͨ͸खಈͰ ࠶ಉظ͠·͢ɻ͍͢͝ʂʂ "SHP$% 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP

"SHP$%ͷσϞ

(JU0QTͰ͸"QQMJDBUJPO3FQPଆͰΠϝʔδΛϏϧυͨ͠Βͦͷ଍Ͱผ్ɺ:".-Λฤूͯ͠QVTI͢ Δඞཁ͕͋Δɻݸਓ։ൃͳͷͰճQVTI͸໘౗ɻ "SHP$% 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP *NBHF "QQMJDBUJPO3FQP
1VTI

ຊདྷ͸ZBNMͷߋ৽΋ࣗಈԽ͍ͨ͠ͱ͜ΖɻಛʹݸਓϒϩάͷΑ͏ͳ΋ͷͳΒঘߋɻ࣮ࡍ"SHP$%ʹ ΊͬͪΌཁ๬ग़ͯΔɻ͔͠͠ɺ"SHP$%͸ͦΕ͸(JU0QTͷൣғ֎ͱͯ͋͠·Γ৐Γؾ͡Όͳ͔ͬͨɻ "SHP$% 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP *NBHF ͍͍ײ͡ʹ.BOJGFTUΛ
ࣗಈͰฤू͍ͨ͠ "QQMJDBUJPO3FQP

ͦ΋ͦ΋"QQMJDBUJPO3FQPͱ.BOJGFTUT3FQPΛ෼͚Δඞཁ͸͋Δͷ͔ɻ͜Ε͸"SHPͷެࣜϒϩ άͰݴٴ͞Ε͍ͯΔ(JU0QT#FTU1SBDUJDFTͷҰͭɻ "SHP$% IUUQTCMPHBSHPQSPKJPHJUPQTCFTUQSBDUJDFTEDCDCF⒎

"SHP$%*NBHF6QEBUFS "SHP$%Λઃఆͨ࣍͠ͷि͘Β͍ʹNBOJGFTUͷJNBHFߋ৽͢Δ΍ͭͰ͖ͯͨXXX ·ͩϓϨϦϦʔεͳͷͰຊ൪ʹ͸࢖͑ͳ͍ͷͰࠓޙʹظ଴ɻ

·ͱΊΔͱ"QQMJDBUJPO3FQPͷ$*Ͱ.BOJGFTUT3FQPͷ಺༰Λमਖ਼ͯ͠QVTI͍ͨ͠ɻͯ͞Ͳ͏ ͢Δ͔ɻɻૂͬͨZBNMͷҰ෦Λ؆୯ʹमਖ਼Ͱ͖Δπʔϧ͕ZR ZR 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP *NBHF ͍͍ײ͡ʹ.BOJGFTUΛ
ࣗಈͰฤू͍ͨ͠ "QQMJDBUJPO3FQP

ZR͸ܰྔͰϙʔλϒϧͳίϚϯυϥΠϯ:".-ϓϩηοαZBNMϑΝΠϧಛԽͷKR·ͨ͸TFEʹͳΔ͜ ͱΛ໨ඪͱ͍ͯ͠Δɻ ZR

ZR͸ͰZBNMͷૂͬͨϑΟʔϧυΛ؆୯ʹฤ ूͰ͖Δɻ͜ΕΛ(JU)VC"DUJPOTͰߦͳͬ ͯɺฤूͨ͠Βͦͷ··QVTI͢Δɻ ZR

ZRΛ࢖ͬͯ"QQMJDBUJPO3FQP΁ͷQVTI͔ΒσϓϩΠ·ͰͷࣗಈԽ͕׬੒ͨ͠ɻ ZR 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP *NBHF ZRͰ.BOJGFTUΛ ฤू͍ͨ͠
"QQMJDBUJPO3FQP

Appendix \

"SHP$%%FDMBSBUJWF4FUVQ "SHP$%ͷઃఆ͸એݴతʹͰ͖ΔɻݸਓϒϩάͰ͸Ҡߦதɻ

(JU0QTͷจ຺Ͱ͸σϓϩΠ͸͍ΘΏΔ1VMMܕWT1VTIܕͷٞ࿦ʹͳΔɻ1VMMܕ͸ݖݶ෼཭΍ɺෳࡶੑഉআʹޮ͍ͯ͘Δɻ ɾ1VMMܕͷํ͸ൿີ৘ใΛ֎෦ʹ౉ͣ͞ʹ,VCFSOFUFT಺Ͱ׬݁Ͱ͖Δɻ ɾ1VMMܕʹ͢Δͱσʔλ֨ೲϦϙδτϦ͕Πϯϑϥʹґଘ͠ͳ͘ͳΔɻ 1VTIܕWT1VMMܕ 1VTI 'FUDI 4ZOD 4ZOD 1VMMܕ 1VTIܕ
)PDL LT΁ͷ 83*5&͕ඞཁ ϦϙδτϦ΁ͷ 3&"%ݖݶ͚ͩ 1VTI

YDSZQUPTTIJTTVF 44)ΩʔʹΑΔೝূ(PͷYDSZQUPTTIύοέʔδʹ͋Δ1BSTF1SJWBUF,FZ8JUI1BTTQISBTF ؔ਺Ͱ͕͢ɺ"SHP$%͕࢖͍ͬͯΔόʔδϣϯ͸0QFO44)ܗࣜͷύεϑϨʔζ෇͖ൿີ伴ʹର Ԡ͓ͯ͠ΒͣΤϥʔʹͳΔɻɻ https://github.com/argoproj/argo-cd/issues/1894#issuecomment-667014961

Conclusion \

(JU0QT͸Ϋϥ΢υωΠςΟϒͳΞϓϦͷܧଓతσϓϩΠΛ࣮૷͢Δํ๏ͷҰͭɻ (JU0QTΛ࣮ݱ͢ΔͨΊʹ͸"SHP$%΍'MVY$%Λ࢖͏ͷ͕ศརɻ ίϯςφΠϝʔδͷϏϧυ͔ΒϦϦʔε·Ͱ͍ͨ͠ͳΒZRͱ͔࢖͏ɻ 'MVY$%͸ͦ͏͍͏ػೳ͕͋Δɻ"SHP$%͸ϕʔλ൛Ͱ͍ۙػೳ͕͋Δɻ

໌೔΋ൃද͢ΔXXX

"SHP$%Ͱ(JU0QTͯ͠Έͨ ,VCFSOFUFT/PWJDF5PLZP"VH CZQPSJO

Argo CD で GitOps してみた

Argo CD で GitOps してみた

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"SHP$%Ͱ(JU0QTͯ͠Έͨ ,VCFSOFUFT/PWJDF5PLZP"VH CZQPSJO

pon ( @po3rin ) ݕࡧͱ͔΍ΔσʔλΤϯδχΞɻ (PΛΑ͘ॻ͘ɻίϯςφ΋޷͖ɻ

Introduction \

&,4Ͱӡ༻ͯ͠Δϒϩά✌ QPSJODPN

ϒϩάͷΞʔΩςΫνϟ✌

Solution \

(JU0QT͸Ϋϥ΢υωΠςΟϒͳΞϓϦͷ ܧଓతσϓϩΠΛ࣮૷͢Δํ๏ͷҰͭͰ ͢ɻΠϯϑϥετϥΫνϟΛϦϙδτϦ ಺ʹهड़͞Εͨঢ়ଶʹҰகͤ͞ΔࣗಈԽ ϓϩηεΛ࣮ߦ͠·͢ɻ 8IBU`T(JU0QT

͜Ε͕σϓϩΠͷཧ૝ܗɻ(JU)VCʹLTͷϚχϑΣετΛมߋͯ͠QVTIͨ͠ΒɺͦΕ͕൓ө͞ΕΔɻ (JU0QT 1VTI 8BUDI4ZOD

͜ͷΑ͏ͳ(JU0QTΛ࣮ݱ͢Δ"SHP$%ͳͲͷΦʔϓϯιʔε͕ଟ਺ଘࡏ͢Δɻ (JU0QT 1VTI 8BUDI 4ZOD

Flux CD ͱ Argo CD ͸ɺGitOps Λ࣮ݱ͢ΔͨΊ ͷΦʔϓϯιʔεͷπʔτοϓͰ͢ɻ (JU0QT

"SHP$%͸લ৬Ͱ࢖͓ͬͯΓɺࣗ෼Ͱ΋ ઃఆͰ͖ΔΑ͏ʹͳ͓͖͍ͬͯͨͱ͍͏ ҆௚ͳཧ༝Ͱϒϩάʹ"SHP$%Λ࠾༻ɻ "SHP$%

"SHP$%͸(JU)VCͷϦϙδτϦΛৗʹXBUDI͠ɺݱঢ়ͱͷࠩ෼Λݕ஌͠ɺઃఆΛࣗಈ·ͨ͸खಈͰ ࠶ಉظ͠·͢ɻ͍͢͝ʂʂ "SHP$% 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP

"SHP$%ͷσϞ

(JU0QTͰ͸"QQMJDBUJPO3FQPଆͰΠϝʔδΛϏϧυͨ͠Βͦͷ଍Ͱผ్ɺ:".-Λฤूͯ͠QVTI͢ Δඞཁ͕͋Δɻݸਓ։ൃͳͷͰճQVTI͸໘౗ɻ "SHP$% 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP *NBHF "QQMJDBUJPO3FQP

ຊདྷ͸ZBNMͷߋ৽΋ࣗಈԽ͍ͨ͠ͱ͜ΖɻಛʹݸਓϒϩάͷΑ͏ͳ΋ͷͳΒঘߋɻ࣮ࡍ"SHP$%ʹ ΊͬͪΌཁ๬ग़ͯΔɻ͔͠͠ɺ"SHP$%͸ͦΕ͸(JU0QTͷൣғ֎ͱͯ͋͠·Γ৐Γؾ͡Όͳ͔ͬͨɻ "SHP$% 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP *NBHF ͍͍ײ͡ʹ.BOJGFTUΛ

ͦ΋ͦ΋"QQMJDBUJPO3FQPͱ.BOJGFTUT3FQPΛ෼͚Δඞཁ͸͋Δͷ͔ɻ͜Ε͸"SHPͷެࣜϒϩ άͰݴٴ͞Ε͍ͯΔ(JU0QT#FTU1SBDUJDFTͷҰͭɻ "SHP$% IUUQTCMPHBSHPQSPKJPHJUPQTCFTUQSBDUJDFTEDCDCF⒎

"SHP$%*NBHF6QEBUFS "SHP$%Λઃఆͨ࣍͠ͷि͘Β͍ʹNBOJGFTUͷJNBHFߋ৽͢Δ΍ͭͰ͖ͯͨXXX ·ͩϓϨϦϦʔεͳͷͰຊ൪ʹ͸࢖͑ͳ͍ͷͰࠓޙʹظ଴ɻ

·ͱΊΔͱ"QQMJDBUJPO3FQPͷ$Ͱ.BOJGFTUT3FQPͷ಺༰Λमਖ਼ͯ͠QVTI͍ͨ͠ɻͯ͞Ͳ͏ ͢Δ͔ɻɻૂͬͨZBNMͷҰ෦Λ؆୯ʹमਖ਼Ͱ͖Δπʔϧ͕ZR ZR 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP NBHF ͍͍ײ͡ʹ.BOJGFTUΛ

ZR͸ܰྔͰϙʔλϒϧͳίϚϯυϥΠϯ:".-ϓϩηοαZBNMϑΝΠϧಛԽͷKR·ͨ͸TFEʹͳΔ͜ ͱΛ໨ඪͱ͍ͯ͠Δɻ ZR

ZR͸ͰZBNMͷૂͬͨϑΟʔϧυΛ؆୯ʹฤ ूͰ͖Δɻ͜ΕΛ(JU)VC"DUJPOTͰߦͳͬ ͯɺฤूͨ͠Βͦͷ··QVTI͢Δɻ ZR

ZRΛ࢖ͬͯ"QQMJDBUJPO3FQP΁ͷQVTI͔ΒσϓϩΠ·ͰͷࣗಈԽ͕׬੒ͨ͠ɻ ZR 1VTI 8BUDI 4ZOD .BOJGFTUT3FQP *NBHF ZRͰ.BOJGFTUΛ ฤू͍ͨ͠

Appendix \

"SHP$%%FDMBSBUJWF4FUVQ "SHP$%ͷઃఆ͸એݴతʹͰ͖ΔɻݸਓϒϩάͰ͸Ҡߦதɻ

YDSZQUPTTIJTTVF 44)ΩʔʹΑΔೝূ(PͷYDSZQUPTTIύοέʔδʹ͋Δ1BSTF1SJWBUF,FZ8JUI1BTTQISBTF ؔ਺Ͱ͕͢ɺ"SHP$%͕࢖͍ͬͯΔόʔδϣϯ͸0QFO44)ܗࣜͷύεϑϨʔζ෇͖ൿີ伴ʹର Ԡ͓ͯ͠ΒͣΤϥʔʹͳΔɻɻ https://github.com/argoproj/argo-cd/issues/1894#issuecomment-667014961

Conclusion \

(JU0QT͸Ϋϥ΢υωΠςΟϒͳΞϓϦͷܧଓతσϓϩΠΛ࣮૷͢Δํ๏ͷҰͭɻ (JU0QTΛ࣮ݱ͢ΔͨΊʹ͸"SHP$%΍'MVY$%Λ࢖͏ͷ͕ศརɻ ίϯςφΠϝʔδͷϏϧυ͔ΒϦϦʔε·Ͱ͍ͨ͠ͳΒZRͱ͔࢖͏ɻ 'MVY$%͸ͦ͏͍͏ػೳ͕͋Δɻ"SHP$%͸ϕʔλ൛Ͱ͍ۙػೳ͕͋Δɻ

໌೔΋ൃද͢ΔXXX

"SHP$%Ͱ(JU0QTͯ͠Έͨ ,VCFSOFUFT/PWJDF5PLZP"VH CZQPSJO