AWS DevDay 2020 - C-8: レジェンドシステムをEC2からKubernetesに置き換える戦い #AWSDevDay

by Kouta Ozaki

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ొஃऀ঺հ 2 ▸ Kouta Ozaki @k_kinzal k-kinzal ▸ Chatwork, YAML Engineer

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Chatworkͱ͸ 3 ޮ཰తʹ৘ใڞ༗Ͱ͖Δ άϧʔϓνϟοτ ࢓ࣄͷݟ͑ΔԽ͕Ͱ͖Δ λεΫ؅ཧ ݟམͱ͕͠ͳ͘ͳΔ ϑΝΠϧڞ༗ ͍ͭͰ΋ձ͕ٞͰ͖Δ ϏσΦ/Ի੠௨࿩

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Chatwork͸೔ຊ࠷େڃͷϏδωενϟοταʔϏε 4 3݄ ϦϦʔε 28.5ສࣾ  ಥഁʂ 20ສࣾ  ಥഁʂ ಋೖࣾ਺28.5ສࣾΛಥഁʂ  (2020೥09݄຤೔࣌఺) 10ສࣾ  ಥഁʂ

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01 ϨδΣϯυγεςϜͱ͸

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ϨδΣϯυγεςϜͱ͸ 6 ChatworkΛࢧ͑ଓ͚ͨPHPͷڊେͳϞϊϦε

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02 Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 8 100 PR / month ʢ2017೥࣌఺ʣ

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 9 5~10% rollback ʢ2017೥࣌఺ʣ

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 10

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VERIFY FIX IDENTIFY Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 11 DETECT MTTR MTTI MTTD

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 12

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 13

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 14

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 15 https://blog-ja.chatwork.com/2017/06/chatworkaws-dev-day.html

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Chatwork͸ͳͥEKS΁ͷஔ͖׵͑Λܾஅͨ͠ͷ͔ 16 1.ঢ়ଶΛ࣋ͨͳ͍ 2.ߴ଎ͳೖΕସ͑

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03 EC2͔ΒEKS΁ͷҠߦઓུ

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18 ? Golden AMI ϨδΣϯυγεςϜͷ࢓༷Խ

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ϨδΣϯυγεςϜͷ࢓༷Խ 19 Golden AMI PHP-FPM NGINX ... Serverspec Infrataster

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ϨδΣϯυγεςϜͷ࢓༷Խ 20 New AMI ... ... ... Old AMI Ansible Serverspec ... ... ... Packer

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EC2͔ΒEKS΁ͷ੾Γସ͑ํ๏ 21

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EKSͷΞοϓάϨʔυઓུ 22

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04 EKS্ʹߏஙͨ͠ΞϓϦέʔγϣϯͷߏ੒

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EKS্ʹߏஙͨ͠ΞϓϦέʔγϣϯͷߏ੒ 24

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EKS্ʹߏஙͨ͠ΞϓϦέʔγϣϯͷϦϦʔεϑϩʔ 25

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05 Ҡߦʹͱ΋ͳ͏ChatworkͷαʔϏεఀࢭࣄྫ

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5%ϦϦʔεࣄ݅ 27 Weight: 5 Weight: 5 = 50%!?

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400k rpmͷ߈๷ 28

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400k rpmͷ߈๷ 29

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DNSͷ໰͍߹ΘͤΤϥʔ 30

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DNSͷ໰͍߹ΘͤΤϥʔ 31

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ALB Ingress ControllerͱAPI Call Limitͷઓ͍ 32

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06 ·ͱΊ

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·ͱΊ 1. ϨδΣϯυ͸ίπίπటष͘΍Δ͔͠ͳ͍ 2. ίπίπ΍Εͳ͚Ε͹ࢮ͵ 34

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ಇ͘Λ΋ͬͱָ͘͠ɺ૑଄తʹ