Kubernetes を利用したデプロイ自動化基盤

by ktr

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Kubernetes Λ࢖ͬͨ σϓϩΠࣗಈԽج൫ @A(izu)LT ձ௡ฤ 0x02

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$ whoami • ੨໦ଠ࿠ (@ktr_0731) • ρ s123 • Web • STEINS;GATEɺڹ͚ʂϢʔϑΥχΞϜ

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؀ڥ • ਓ਺͕͋·Γଟ͘ͳ͍ձࣾ • WebɺαʔόɺϞόΠϧ͝ͱʹϦϙδτϦ͕ ෼͔Ε͍ͯΔ • खಈϏϧυɾσϓϩΠ

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؀ڥ • ਓ਺͕͋·Γଟ͘ͳ͍ձࣾ • WebɺαʔόɺϞόΠϧ͝ͱʹϦϙδτϦ͕ ෼͔Ε͍ͯΔ • खಈϏϧυɾσϓϩΠ

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؀ڥ • ਓ਺͕͋·Γଟ͘ͳ͍ձࣾ • WebɺαʔόɺϞόΠϧ͝ͱʹϦϙδτϦ͕ ෼͔Ε͍ͯΔ • खಈσϓϩΠ

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ςετ؀ڥ΁ͷσϓϩΠ ʹ͕͔͔࣌ؒΔ

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ςετ؀ڥ΁ͷσϓϩΠ ʹ͕͔͔࣌ؒΔ ↓ ࣗಈԽͷඞཁੑ

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ཁૉ • Slack Bot • CI αʔό • Docker • Kubernetes

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Docker • (େࡶ೺ʹ͍͏ͱ) ؀ڥΛίϯςφԽ͢Δٕज़ • Docker ΠϝʔδʹΞϓϦέʔγϣϯΛೖΕͯ ଞʹґଘΛٴ΅ͣ͞ʹಈ͔ͤΔ • Immutable Infrastructure

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• a.k.a. k8s • Docker ίϯςφͷΦʔέετϨʔγϣϯπʔϧ • ΫϥελϦϯά • ίϯςφ܈ͷىಈɺఀࢭɺϨϓϦέʔγϣϯ

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• 1ͭҎ্ͷ Docker Πϝʔδ͔Β Pod Λ࡞੒ • ֤ Node ʹ෼ࢄͯ͠഑ஔ

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• namespace Ͱ؀ڥΛ෼͚Δ͜ͱ͕Ͱ͖Δ • Ͳͷ؀ڥʹσϓϩΠ͢Δ͔ߟ͑Δඞཁ͕ͳ͍

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• namespace Ͱ؀ڥΛ෼͚Δ͜ͱ͕Ͱ͖Δ • Ͳͷ؀ڥʹσϓϩΠ͢Δ͔ߟ͑Δඞཁ͕ͳ͍ • Ͳ͜Ͱಈ͍͍ͯΔ͔ߟ͑ͳͯ͘ྑ͍

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• namespace Ͱ؀ڥΛ෼͚Δ͜ͱ͕Ͱ͖Δ • Ͳͷ؀ڥʹσϓϩΠ͢Δ͔ߟ͑Δඞཁ͕ͳ͍ • Ͳ͜Ͱಈ͍͍ͯΔ͔ߟ͑ͳͯ͘ྑ͍ • Ͳ͏ಈ͍͍ͯΔ͔͚ͩߟ͑Ε͹ྑ͍

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αʔϏεͷެ։ apiVersion: v1 kind: Service metadata: name: sample-server labels: name: sample-server spec: type: LoadBalancer ports: - port: 80 protocol: TCP targetPort: 8080 selector: name: sample-server

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αʔϏεͷެ։ • type=LoadBalancer Ͱ LB ͕࡞੒͞ΕɺΞϓ Ϧέʔγϣϯ͕ެ։͞ΕΔ • AWS ͳͲͷαϙʔτ͞ΕͨҰ෦ͷΈ • kubernetes/ingress

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σϓϩΠʹඞཁͳઃఆϑΝΠϧ • service.yaml (͖ͬ͞ͷઃఆ) • deployment.yaml • ϨϓϦΧ਺ͷࢦఆ • Pod ͷߏ੒ͷهड़

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$ kubectl create -n test -f service.yaml $ kubectl create -n test -f deployment.yaml

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ཁૉ • Slack Bot • CI αʔό • Docker • Kubernetes

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Slack Bot • ChatOps • ୭Ͱ΋ςετ؀ڥʹσϓϩΠ͕Ͱ͖Δ

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Ұ࿈ͷྲྀΕ • Bot ʹσϓϩΠΛ఻͑Δ • CI ͕σϓϩΠϞʔυͰಈ͘ • CI ্Ͱ Kubernetes ΁ͷσϓϩΠεΫϦϓτ Λ࣮ߦ • σϓϩΠ׬ྃ

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Ұ࿈ͷྲྀΕ • Bot ʹσϓϩΠΛ఻͑Δ • CI ͕σϓϩΠϞʔυͰಈ͘ • CI ্Ͱ Kubernetes ΁ͷσϓϩΠεΫϦϓτ Λ࣮ߦ • σϓϩΠ׬ྃ

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՝୊ • ݱࡏ͸ςετ؀ڥͷΈͷ࢖༻ • ͍ͣΕϓϩμΫγϣϯ؀ڥͰ΋࢖͍͍ͨ • ஌ݟ͕ཷ·͍ͬͯͳ͍ • k8s ͷجຊ֓೦͸஌Δඞཁ͕͋Δ

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·ͱΊ • Kubernetes • ෳ਺ͷಠཱͨ͠؀ڥΛ࡞੒Ͱ͖Δ • Ͳ͜Ͱಈ͍͍ͯΔ͔Λߟ͑ͣʹࡁΉ • k8s ͰσϓϩΠ͕ࣗಈͰͰ͖ΔΑ͏ʹͳͬͨ

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ࢀߟ • https://speakerdeck.com/koudaiii/number- devsumie • Wantedly TechBook #2

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Thanks for your attention!