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

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1. ͳͥ Go ͸ϚΠΫϩαʔϏεͷͨΊͷݴޠͳͷ͔ Kohei Kimura Software Engineer at Nulab Inc. @cohhei
2. ☝ࠓ೔Ұ൪ݴ͍͍ͨ͜ͱ☝
3. εϙϯαʔηογϣϯͰ͸ ͋Γ·ͤΜ ※ͪΌΜͱϓϩϙʔβϧॻ͖·ͨ͠ɻ΄Ίͯɻ
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
5. Ϋϥ΢υωΠςΟϒ΍ͬͯ·͔͢ʁ
6. Ϋϥ΢υωΠςΟϒͱ͸ εέʔϥϒϧͳΞϓϦέʔγϣϯΛߏங͓Αͼ࣮ߦ͢ΔͨΊͷٕज़ͷ૯শ ୅දతͳٕज़: ίϯςφɺαʔϏεϝογϡɺϚΠΫϩαʔϏεɺ ΠϛϡʔλϒϧΠϯϑϥετϥΫνϟɺએݴܕAPI ճ෮ੑʢresilientʣɺ؅ཧ͠΍͢͞ʢmanageableʣɺՄ؍ଌੑ ʢobservableʣ͕ಘΒΕΔ
7. ίϯςφɺCI/CDɺΦʔέετϨʔ γϣϯ… ͑ɺαʔϏεϓϩΩγɾϝογϡɾ σΟεΧόϦʔͰ΍ͬͱ൒෼ʁ ಓͷΓ͸௕͍…
9. Ϋϥ΢υωΠςΟϒ͸প
10. https://www.youtube.com/watch?v=1qVj1vXbuX0 ෳࡶɺ৑௕ ॲཧͷݪ࢝ੑɺҰ؏ੑͷ೉͠͞ ؅ཧίετͷ૿େ
11. ࠓ೔ͷ࿩ɿ ͸͍͍ͧ
13. Go ͕ Google Ͱੜ·ΕͨܦҢ ແ਺ͷϋʔυ΢ΣΞɺແ਺ͷιϑτ΢ΣΞ Լ͕Γଓ͚Δ։ൃޮ཰ʹର߅͢Δ
14. "Go was designed by and for people who write —and read and debug and maintain—large software systems." Rob Pike, Go at Google
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
16. Docker and Go
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
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
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
20. Observability and Go
21. Clients Server Side ࡶͳ Microservices Ͳ͜ͰԿ͕͓͖ͯΔ͔ Θ͔Βͳ͍໰୊
22. Observability Metrics Trasing Logging
24. Ұ൪͸͡Ίʹ͖ͯΔ͎ʙʂ (” ՞ਊ ՞)”řŐŖŘ!!
25. https://zipkin.apache.org
26. Observability Metrics Trasing Logging
28. https://prometheus.io/
29. (” ՞ਊ ՞)”řŐŖŘ!! https://prometheus.io/
30. https://prometheus.io/docs/guides/go-application/
31. ʢΞϓϦଆ͸ʣಋೖ͕؆୯ ࢓૊Έ͕Ͱ͖Ε͹௥Ճɾߋ৽΋ൺֱత؆୯ πʔϧΛऔΓೖΕΔ͜ͱͰϕετϓϥΫςΟεΛ ͱΓ͜Ή
32. gRPC and Go
33. ΦʔϓϯιʔεͷRPCϑϨʔϜϫʔΫ RPC = Remote Procedure Call ΠϯλʔϑΣʔεΛ Protocol Buffers Ͱࣗಈੜ੒ ҟͳΔݴޠͰ࢖༻Մೳ HTTP/2 ૒ํ޲ετϦʔϛϯά
34. Protocol Buffers Ͱఆٛ → ίʔυੜ੒Λ࣮ߦ → ΫϥΠΞϯτͱαʔόʔͷΠϯλʔ ϑΣʔεɺܕͷίʔυ͕ੜ੒
35. ৄ͘͠͸ @vvvatanabe ʹฉ͍͍ͯͩ͘͞
36. ʹ͓͚Δ Proto ϑΝΠϧͱੜ੒ͨ͠ίʔυͷ؅ཧ
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
38. ·ͱΊ
39. ͸͍͍ͧ
40. ͸͍͍ͧ ͍͞͝ʹ
41. Diagram ΦϯϥΠϯ௨࿩͠ͳ͕Βڞಉฤू ͦͷ৔Ͱࢿྉ࡞੒ ը໘ڞ༗͸ෆཁ ݴޠͰ఻ΘΓʹ͍͘͜ͱ΋ਤͰઆ໌
42. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ ݟ͔͚ͨΒ੠͔͚͍ͯͩ͘͞ɻ Kohei Kimura Software Engineer at Nulab Inc. @cohhei