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Canary Deployments
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Yoshiki Nakagawa
September 28, 2016
Technology
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Canary Deployments
Yoshiki Nakagawa
September 28, 2016
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Transcript
Canary Deployments ! Move Fast, Fail Fast (and Small) Sep
/ 26 / 2016 1
AboutMe @yyoshiki41 Yoshiki Nakagawa Infrastructure Engineer, pairs Division Tech »
Golang » Middleware, AWS 2
What is the canary server ? By 4028mdk09 (Own work)
[CC BY-SA 3.0], via Wikimedia Commons 3
Canary Server tl;dr σϓϩΠϓϩϏδϣχϯάΛ͍͖ͳΓ ϓϩμΫγϣϯڥͷશମͰͳ͘ɺઌ ߦͯ͠Ұ෦ʹରͯ͠ߦ͍ɺ ͜Ε͕దԠ͞ΕͨͷΛʮΧφϦΞαʔ όʯͱݺͿɻ Ұ෦ͷΫϥελʹΑΔݕূͰɺࣦഊ࣌ ͷμϝʔδΛগͳ͘͢Δߟ͑ํɻ
ϑΟʔυόοΫΛ͍ͪૣ͘ड͚औΕΔɻ 4
߭ͰͷಟΨεݕʹɺΧφϦΞ͕ ΘΕͨ͜ͱʹ༝དྷ͢Δɻ ͍ΘΏΔ߭ͷΧφϦΞɺ߭ʹ͓ ͍ͯ͠͠ൃੜ͢ΔϝλϯҰࢎԽ ૉͱ͍ͬͨଉΨεಟΨεૣظൃ ݟͷͨΊͷܯใͱͯ͠༻͞Εͨɻຊ छͭͶʹ͍͑ͣͬͯ͞ΔͷͰɺҟৗൃ ੜʹઌۦ͚·ͣ໐͖͕ࢭΉɻͭ· ΓةݥͷΛͱࣖͰ֬ೝͰ͖Δॴ ͕ॏๅ͞ΕɺಟΨεݕʹ༻͍ΒΕ
ͨɻ wikipedia ΑΓ 5
Use Cases 6
Application » มߋͨ͠ΞϓϦέʔγϣϯίʔυΛຊ൪σϓϩΠͯ͠ݕূ͍ͨ͠ » ৽ػೳͷఆ͍ͯ͠ͳ͍όάΛ࠷খݶʹ͍͗ͨ / ෛՙΛݕূ͍ͨ͠ Infra » ৽͍͠ϛυϧΣΞΛࢼ͍ͨ͠
» ϛυϧΣΞͷϓϩϏδϣχϯάมߋલޙͷมԽΛݕূ͍ͨ͠ 7
Use Cases in pairs Ansible commands! $ ansible-playbook -i hosts/pairs-jp/prod
--limit web-canary playbook_pairs/delivery.yml --extra-vars="pkg_dir=v160101010101-10f29c9" That's all! 8
Use Cases in Netflix σϓϩΠαΠΫϧʹΧφϦΞΫϥελͷσϓϩΠؚ͕·Ε͓ͯΓɺ ϨϙʔςΟϯά(Canary analysis report) => શମެ։͢Δ͔൱͔ͷδϟ
οδ (Canary Score) ·Ͱ͕ࣗಈԽ͞Ε͍ͯ·͢ɻ ඦͱ͍͏Α͏ͳنΛӡ༻͍ͯ͘͠͏͑Ͱɺ શࢮઈରʹආ͚ͳ͚ΕͳΒͳ͍͜ͱΛߟ͑ΔͱࣗવͳྲྀΕɻ 9
Development & Deployment Flow ެࣜϒϩά ʮDeploying the Netflix APIʯ 10
Containers Containerͱͷ૬ੑ͕ྑ͍ͷͰɺ Container as a serviceɺCI/CDαʔ ϏεʹΈࠐ·Ε͍ͯΔͷଟ͍ɻ e.g.) Kubernetes 11
Caution ޓΛऔΕ͍ͯͳ͍ͷɺΧφϦΞαʔόͷσϓϩΠ͕ग़དྷͳ͍ɻ e.g.) ৽͍͠APIϦΫΤετΛ͛ΔΫϥΠΞϯτଆͷίʔυؚΉ ! 12
Others ຊ൪ڥ(ಉ)ͰͷݕূΛߦ͍͍ͨ߹ɺ ΧφϦΞαʔόͰͳ͘γϟυʔϓϩΩγΛ༻͍Δख๏ϝδϟʔɻ e.g.) cookpad/Kage 13
Move Fast, Fail Fast (and Small) ߭ (ຊ൪ڥ) ʹɺةݥ͕͍ͬͺ͍Ͱ͢ɻ શ໓Λආ͚ΔҝʹɺΧφϦΞͷॿ͚ΛआΓ·͠ΐ͏
! (ͪΖΜɺΧφϦΞࢮͳͤͳ͍͜ͱ͕ϕετͰ͕͢ɻ) 14