なぜ Go はマイクロサービスのための言語なのか - Why Go is a language for microservices

Transcript

1. ͳͥ Go ͸ϚΠΫϩαʔϏεͷͨΊͷݴޠͳͷ͔
   Kohei Kimura
   Software Engineer at Nulab Inc.
   @cohhei
   

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2. ☝ࠓ೔Ұ൪ݴ͍͍ͨ͜ͱ☝
   

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3. εϙϯαʔηογϣϯͰ͸
   ͋Γ·ͤΜ
   ※ͪΌΜͱϓϩϙʔβϧॻ͖·ͨ͠ɻ΄Ίͯɻ
   

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4. SIerɺࠃ಺Ϋϥ΢υϕϯμʔΛܦͯ2018೥1݄ Nulab ೖࣾ
   Cacoo νʔϜͷόοΫΤϯυΤϯδχΞ
   ։ൃݴޠ ΄΅ ≡, ·Εʹ Java, Node.js
   ొஃ࣮੷
   Kubernetes Meetup Tokyo #14
   CloudNative Days Fukuoka 2019
   AWS Summit Osaka
   Kohei Kimura
   @cohhei
   

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5. Ϋϥ΢υωΠςΟϒ΍ͬͯ·͔͢ʁ
   

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6. Ϋϥ΢υωΠςΟϒͱ͸
   εέʔϥϒϧͳΞϓϦέʔγϣϯΛߏங͓Αͼ࣮ߦ͢ΔͨΊͷٕज़ͷ૯শ
   ୅දతͳٕज़: ίϯςφɺαʔϏεϝογϡɺϚΠΫϩαʔϏεɺ
   ΠϛϡʔλϒϧΠϯϑϥετϥΫνϟɺએݴܕAPI
   ճ෮ੑʢresilientʣɺ؅ཧ͠΍͢͞ʢmanageableʣɺՄ؍ଌੑ
   ʢobservableʣ͕ಘΒΕΔ
   

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7. ίϯςφɺCI/CDɺΦʔέετϨʔ
   γϣϯ…
   ͑ɺαʔϏεϓϩΩγɾϝογϡɾ
   σΟεΧόϦʔͰ΍ͬͱ൒෼ʁ
   ಓͷΓ͸௕͍…
   

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9. Ϋϥ΢υωΠςΟϒ͸প
   

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10. https://www.youtube.com/watch?v=1qVj1vXbuX0
    ෳࡶɺ৑௕
    ॲཧͷݪ࢝ੑɺҰ؏ੑͷ೉͠͞
    ؅ཧίετͷ૿େ
    

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11. ࠓ೔ͷ࿩ɿ ͸͍͍ͧ
    

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13. Go ͕ Google Ͱੜ·ΕͨܦҢ
    ແ਺ͷϋʔυ΢ΣΞɺແ਺ͷιϑτ΢ΣΞ
    Լ͕Γଓ͚Δ։ൃޮ཰ʹର߅͢Δ
    

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14. "Go was designed by and for people who write
    —and read and debug and maintain—large
    software systems."
    Rob Pike, Go at Google
    

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15. ͳͥ Go ͸ϚΠΫϩαʔϏεͷͨΊͷݴޠͳͷ͔
    https://blog.docker.com/2019/02/weve-got-❤%EF%B8%8F-for-our-first-batch-of-dockercon-speakers/
    ཧ༝: Ϋϥ΢υωΠςΟϒͱͷ
    ૬ੑ͕ʮ͹ΓΑ͔ʯ
    γϯάϧόΠφϦɺߴ଎ͳϏϧυɺলϝϞϦ
    

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16. Docker and Go
    

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17. FROM golang:1.7.3
    WORKDIR /go/src/github.com/alexellis/href-counter/
    RUN go get -d -v golang.org/x/net/html
    COPY app.go .
    RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .
    FROM alpine:latest
    RUN apk --no-cache add ca-certificates
    WORKDIR /root/
    COPY --from=0 /go/src/github.com/alexellis/href-counter/app .
    CMD ["./app"]
    ΈΜͳ͍͖ͩ͢
    multi-stage builds
    

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18. FROM golang:1.7.3
    WORKDIR /go/src/github.com/alexellis/href-counter/
    RUN go get -d -v golang.org/x/net/html
    COPY app.go .
    RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .
    FROM alpine:latest
    RUN apk --no-cache add ca-certificates
    WORKDIR /root/
    COPY --from=0 /go/src/github.com/alexellis/href-counter/app .
    CMD ["./app"]
    ΈΜͳ͍͖ͩ͢
    multi-stage builds
    Ϗϧυ༻ͷεςʔδ
    

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19. FROM golang:1.7.3
    WORKDIR /go/src/github.com/alexellis/href-counter/
    RUN go get -d -v golang.org/x/net/html
    COPY app.go .
    RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .
    FROM alpine:latest
    RUN apk --no-cache add ca-certificates
    WORKDIR /root/
    COPY --from=0 /go/src/github.com/alexellis/href-counter/app .
    CMD ["./app"]
    ΈΜͳ͍͖ͩ͢
    multi-stage builds
    ࣮ߦ༻ͷεςʔδ
    Go ͸Πϯετʔϧ͞Ε͍ͯͳ͍
    Ϗϧυ༻ͷεςʔδ͔Β
    ϑΝΠϧΛίϐʔ
    

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20. Observability and Go
    

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21. Clients
    Server Side
    ࡶͳ Microservices
    Ͳ͜ͰԿ͕͓͖ͯΔ͔
    Θ͔Βͳ͍໰୊
    

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22. Observability
    Metrics
    Trasing Logging
    

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24. Ұ൪͸͡Ίʹ͖ͯΔ͎ʙʂ
    (” ՞ਊ ՞)”řŐŖŘ!!
    

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25. https://zipkin.apache.org
    

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26. Observability
    Metrics
    Trasing Logging
    

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28. https://prometheus.io/
    

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29. (” ՞ਊ ՞)”řŐŖŘ!!
    https://prometheus.io/
    

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30. https://prometheus.io/docs/guides/go-application/
    

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31. ʢΞϓϦଆ͸ʣಋೖ͕؆୯
    ࢓૊Έ͕Ͱ͖Ε͹௥Ճɾߋ৽΋ൺֱత؆୯
    πʔϧΛऔΓೖΕΔ͜ͱͰϕετϓϥΫςΟεΛ
    ͱΓ͜Ή
    

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32. gRPC and Go
    

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33. ΦʔϓϯιʔεͷRPCϑϨʔϜϫʔΫ
    RPC = Remote Procedure Call
    ΠϯλʔϑΣʔεΛ Protocol Buffers Ͱࣗಈੜ੒
    ҟͳΔݴޠͰ࢖༻Մೳ
    HTTP/2
    ૒ํ޲ετϦʔϛϯά
    

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34. Protocol Buffers Ͱఆٛ
    → ίʔυੜ੒Λ࣮ߦ
    → ΫϥΠΞϯτͱαʔόʔͷΠϯλʔ
    ϑΣʔεɺܕͷίʔυ͕ੜ੒
    

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35. ৄ͘͠͸ @vvvatanabe ʹฉ͍͍ͯͩ͘͞
    

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36. ʹ͓͚Δ Proto ϑΝΠϧͱੜ੒ͨ͠ίʔυͷ؅ཧ
    

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37. Protofiles
    Git repositories
    Generated code
    Generate
    Webhook
    git push origin develop/
    beta/master
    Protocol Buffers ϑΝΠϧ͸୯ҰͷϦϙδτϦͰ؅ཧ
    ϑΝΠϧ͕ߋ৽͞ΕΔͱ
    → Jenkins ্Ͱ Java ͱ Go ͷίʔυੜ੒
    → ଞϓϩδΣΫτ͸ dep ensure ͳͲͰऔಘ
    Protofilesͱੜ੒͞Εͨίʔυͷϒϥϯν͸Ұக
    Other applications
    Generated code
    

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38. ·ͱΊ
    

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39. ͸͍͍ͧ
    

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40. ͸͍͍ͧ
    ͍͞͝ʹ
    

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41. Diagram
    ΦϯϥΠϯ௨࿩͠ͳ͕Βڞಉฤू
    ͦͷ৔Ͱࢿྉ࡞੒
    ը໘ڞ༗͸ෆཁ
    ݴޠͰ఻ΘΓʹ͍͘͜ͱ΋ਤͰઆ໌
    

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42. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ
    ݟ͔͚ͨΒ੠͔͚͍ͯͩ͘͞ɻ
    Kohei Kimura
    Software Engineer at Nulab Inc.
    @cohhei
    

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