Knative Serving 入門 / kubernetes meetup 13

https://k8sjp.connpass.com/event/100842/

Transcript

1. ∁ੴྒ / GMO Pepabo, Inc.
   2018-09-28 Kubernetes Meetup #13
   ,OBUJWF4FSWJOHೖ໳
   

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2. ∁ੴ ྒ / @r_takaishi
   TAKAISHI Ryo
   https://repl.info/
   Belgian beer
   Ruby, Go
   Kubernetes, OpenStack
   

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3. ∁ੴ ྒ / @r_takaishi
   TAKAISHI Ryo
   •ιϑτ΢ΣΞΤϯδχΞ @ GMOϖύϘ
   •΢ΣϒαʔϏεͷج൫ߏஙɾӡ༻
   •࠷ۙ͸FluentdͷϓϥάΠϯΛॻ͍͍ͯ·͢
   •OpenStackΛ࢖ͬͨϓϥΠϕʔτΫϥ΢υӡ༻
   •Kubernetes on OpenStack؀ڥͷߏங
   •஥ؒืूதʂ
   

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4. ,OBUJWF
   

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5. ,OBUJWF4FSWJOH
   

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6. • Knative ServingͷΞʔΩςΫνϟ΍ࢥ૝ʹ͍ͭͯ
   • ಛ௃తͳػೳͷ1ͭͰ͋Δθϩɾεέʔϧʹ͍ͭͯ
   • ୭Λର৅ͱͨ͠ϓϩμΫτͳͷ͔ʁզʑ͸Ͳ͏઀͢Ε͹͍͍ͷ͔ʁ
   !6
   ࠓ೔࿩͢͜ͱ
   

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7. • Knative Eventing
   • Knative Building
   • ಺෦࣮૷
   !7
   ࠓ೔࿩͞ͳ͍͜ͱ
   

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8. ݁࿦
   

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9. • Knative Servingͷΰʔϧ͸ɺPaaS/FaaSͷ֓೦ΛؚΉαʔόʔϨεϫʔΫϩʔ
   υͷͨΊͷAPIͱπʔϧΛఏڙ͢Δ͜ͱ
   • ൓ԠతʹΞϓϦέʔγϣϯΛىಈɾεέʔϧ͠ɺར༻͕ͳ͚Ε͹ఀࢭ͢ΔΞʔ
   ΩςΫνϟͰ͋Δ
   • 2018೥9݄࣌఺Ͱ͸ΞʔΩςΫνϟͱAPIͷΈఏڙ͞Ε͍ͯΔঢ়گɻʢ·ͩެ
   ࣜͰ͸ͳ͍͕ʣCLIπʔϧ͕ొ৔࢝͠Ί͍ͯΔ
   • IaaSɺCaaSɺPaaSͱ͍ͬͨج൫ٕज़ͷԆ௕ઢ্ʹ͋ΔϓϩμΫτͰɺKnative
   Ͱ͸ͳͯ͘΋͍͍͕ߟ͑ํ͸஌͓ͬͯ͘ͱΑ͍ͱࢥ͏
   !9
   ݁࿦ɿ,OBUJWF4FSWJOHͱ͸Կͳͷ͔
   

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10. ,OBUJWF͕໨ࢦ͢ΰʔϧ
    

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11. • Google Cloud Next 2018Ͱൃද͞Εͨʢ2018೥7݄຤ʣ
    • αʔόʔϨεΛఏڙ͢ΔϓϥοτϑΥʔϜ
    • Kubernetes্ʹߏங
    !11
    ,OBUJWFʁ
    

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12. • BuildɿίϯςφΠϝʔδΛϏϧυ͢Δ
    • EventingɿΠϕϯτͷσϦόϦʔΛ؅ཧ͢Δ
    • ServingɿϦΫΤετۦಈͰίϯςφΛىಈɾεέʔϧ͢Δ
    !12
    ,OBUJWF
    

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14. • Knative Servingͷΰʔϧ͸ɺαʔόʔϨεϫʔΫϩʔυͷͨΊͷ
    APIͱπʔϧΛఏڙ͢Δ͜ͱ
    • ެࣜͷCLIπʔϧɺGUI͸·ͩͳ͍ͬΆ͍
    • cppforlife/knctlɿίϛϡχςΟϦιʔεͰ։ൃ͞Ε͍ͯΔ໛༷
    • CLI͚ͩͰσϓϩΠ΍τϥϑΟοΫ෼ׂ͕࣮ݱՄೳʹͳΔʁ
    !14
    ,OBUJWF4FSWJOH͕໨ࢦ͢ΰʔϧ
    https://github.com/knative/serving/blob/v0.1.1/docs/spec/motivation.md
    

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15. αʔόʔϨεʁ
    

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16. !16
    • εςʔτϨεͰ͋Δ͜ͱ
    • ϓϩηεͷεέʔϧΞ΢τ͕ద༻ՄೳͰ͋Δ͜ͱ
    • ओʹΞϓϦέʔγϣϯϨϕϧʢL7ɺྫ͑͹HTTPʣͷϦΫΤεττ
    ϥϑΟοΫʹΑͬͯۦಈ͢Δ͜ͱ
    αʔόʔϨεɾϫʔΫϩʔυ
    

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17. • ΋ͪΖΜବ໨Ͱ͸ͳ͍
    • Kubernetes͸αʔόʔϨεϫʔΫϩʔυΛѻ͑ΔϦιʔεΛఏڙ͠
    ͍ͯΔʢDeploymentɺServiceͳͲʣ
    • ͔͠͠ɺ͜ΕΒͷϦιʔε͸ΞϓϦέʔγϣϯ։ൃऀ͔Βݟͨͱ͖ɺ
    े෼ʹγϯϓϧͱ͸ݴ͑ͳ͍
    !17
    ,VCFSOFUFTͰ͸ବ໨ͳͷ͔
    

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18. • Kubernets্ͷΞϓϦέʔγϣϯϓϥοτϑΥʔϜʹ͸ڞ௨఺͕ଟ
    ͍
    • Knative͸ڞ௨఺Λඪ४ԽɾΧελϜϦιʔεԽ͢Δ
    • ͜ΕʹΑΓΞϓϦέʔγϣϯ։ൃऀ͔ΒݟͨΠϯϑϥΛந৅Խ͢Δ
    !18
    ,VCFSOFUFTͰ͸ବ໨ͳͷ͔
    

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19. ߏ੒ཁૉ
    

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20. • CRD(Custom Resource Definitions)Ͱఆٛ
    • Revision
    • Configuration
    • Route
    • Service
    !20
    ,OBUJWF4FSWJOH͕ఏڙ͢ΔϦιʔε
    Route Configuration
    Revision
    Service
    Revision
    Revision
    NBOBHFT
    SPVUFUSB⒏DUP SFDPSEIJTUPSZPG
    

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21. • Revision
    • ίʔυͱઃఆͷεφοϓγϣοτ
    • ConfigurationʹΑͬͯ࡞੒
    !21
    ,OBUJWF4FSWJOH͕ఏڙ͢ΔϦιʔε
    Route Configuration
    Revision
    Service
    Revision
    Revision
    NBOBHFT
    SPVUFUSB⒏DUP SFDPSEIJTUPSZPG
    

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22. • Configuration
    • ࠷৽ͷRevisionʹ͍ͭͯͷهड़
    • Configurationͷߋ৽ʹΑΓɺ৽͍͠
    Revision͕࡞ΒΕΔ
    !22
    ,OBUJWF4FSWJOH͕ఏڙ͢ΔϦιʔε
    Route Configuration
    Revision
    Service
    Revision
    Revision
    NBOBHFT
    SPVUFUSB⒏DUP SFDPSEIJTUPSZPG
    

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23. • Route
    • αʔϏε޲͚ΤϯυϙΠϯτΛఏڙ
    • ΤϯυϙΠϯτͷޙΖʹ͸1ͭҎ্ͷ
    Revision͕ଘࡏ
    • ύʔηϯςʔδϕʔεͰτϥϑΟοΫ
    Λ෼ׂ
    !23
    ,OBUJWF4FSWJOH͕ఏڙ͢ΔϦιʔε
    Route Configuration
    Revision
    Service
    Revision
    Revision
    NBOBHFT
    SPVUFUSB⒏DUP SFDPSEIJTUPSZPG
    

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24. • Service
    • RouteͱConfigurationΛ࡞੒͢Δ
    • جຊతʹServiceΛ࢖͏ͱָ
    • KubernetesͷDeploymentͱ
    ReplicaSetͷؔ܎
    !24
    ,OBUJWF4FSWJOH͕ఏڙ͢ΔϦιʔε
    Route Configuration
    Revision
    Service
    Revision
    Revision
    NBOBHFT
    SPVUFUSB⒏DUP SFDPSEIJTUPSZPG
    

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25. • Blue Green DeploymentͷσϞ
    • ৽͍͠όʔδϣϯͷΞϓϦέʔγϣϯʹঃʑʹτϥϑΟοΫΛྲྀ͠
    ͍ͯ͘
    !25
    %FNP
    

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26. εέʔϦϯά
    

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27. • Knative Serving͸ϦΫΤετΛτϦΨʔͱͯ͠ΞϓϦέʔγϣϯΛ
    ىಈɾεέʔϧΞ΢τ͢Δ
    • Pod1୆͋ͨΓͷෛՙ͕ৗʹҰఆʹͳΔΑ͏ʹPodͷ୆਺Λ૿ݮ͢Δ
    • Horizontal Auto Scaling
    • ϦΫΤετ͕Ұఆظؒͳ͍৔߹ɺPodͷ୆਺Λ0ʹͯ͠Ϧιʔεޮ
    ཰Λ্͛Δ͜ͱ΋Ͱ͖Δ
    !27
    ,OBUJWFͷεέʔϦϯάͱ͸Կ͔
    

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28. !28
    Φʔτεέʔϧͷ࢓૊Έ
    Istio Route
    Route
    Revision
    Pods Deployment
    Autoscaler
    Activator
    inactive route active route
    watch first
    activate
    metrics
    resize
    create/delete
    

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29. !29
    ༻ޠ
    Knative Serving Revision ϢʔβʔͷίʔυͱઃఆͷεφοϓγϣοτΛѻ͏ΧελϜϦιʔε
    Knative Serving Route RevisionͷIstioͷΠϯάϨεϧʔϧΛ௨ͯ͠ΫϥΠΞϯτʹެ։͢ΔΧελϜϦιʔε
    Kubernetes Deployment Podͱͯ͠ಈ͘ίϯςφͷϥΠϑαΠΫϧΛ؅ཧ͢ΔKubernetesͷϦιʔε
    Knative Serving Autoscaler
    Ϣʔβʔͷίʔυ͕ಈ͘PodͷෛՙΛ؂ࢹ͢ΔͨΊͷDeploymentɻ
    PodͷෛՙΛҰఆʹอͭΑ͏ʹϢʔβʔίʔυ༻ͷDeploymentͷαΠζΛ૿ݮ͢Δ
    Knative Serving Activator
    KnativeͰ͸ϦΫΤετ͕ಧ͍ͨ࣌ɺͦΕΛड͚औΔPod͕ͳ͍Մೳੑ͕͋Δɻ
    ͦ͏͍͏࣌ʹϦΫΤετΛड͚औΔDeploymentɻPodΛىಈ͠ɺϦΫΤετΛϑΥϫʔυ͢Δ
    Concurrency ॠؒॠؒͰॲཧ͍ͯ͠ΔϦΫΤετͷ਺
    

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30. !30
    1PE͕ىಈ͍ͯ͠ͳ͍৔߹
    Istio Route
    Route
    Revision
    Pods Deployment
    Autoscaler
    Activator
    inactive route active route
    watch first
    activate
    metrics
    PodͷىಈΛ؂ࢹ
    PodΛىಈ͢Δ
    create/delete resize
    

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31. !31
    1PE͕ىಈ͍ͯ͠Δ৔߹
    Istio Route
    Route
    Revision
    Pods Deployment
    Autoscaler
    Activator
    inactive route active route
    watch first
    activate
    metrics
    Pod͕ىಈ͍ͯ͠Δ৔߹ɺ
    ϦΫΤετ͸Pod΁
    Autoscaler͸Podͷ
    ϝτϦοΫΛ؂ࢹ
    create/delete resize
    

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32. !32
    1PEͷෛՙ͕ߴ͗͢Δ௿͗͢Δ৔߹
    Istio Route
    Route
    Revision
    Pods Deployment
    Autoscaler
    Activator
    inactive route active route
    watch first
    activate
    create/delete
    metrics
    resize
    

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33. • Fast Brain
    • Pod1୆ຖͷಉ࣌ཁٻͷਫ४Λҡ࣋͢Δ
    • ྫɿPod1୆͕1ඵ͋ͨΓ100ϦΫΤετΛॲཧ͢ΔΑ͏୆਺Λ૿ݮ
    • Slow Brain
    • Fast BrainͰ࢖͏ਫ४ΛCPU΍ϝϞϦɺϨΠςϯγͳͲͷ౷ܭʹج͍ͮͯ
    ఏҊ͢Δ
    • v0.1.1Ͱ͸ະ࣮૷ʢϋʔυίʔυ͞Ε͍ͯΔʣ
    !33
    "VUPTDBMFS͸ͭͷ೴Λ࣋ͭ
    

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34. ཧղΛਂΊΔ
    

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35. Ϧιʔεͱ͔εέʔϧͷ࢓૊Έͱ͔
    ݟͤΒΕ͚ͨͲɺ݁ہͲ͏͍͏΋ͷ
    ͳͷ
    

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36. • ॏཁͳͷ͸ϦΫΤετͰۦಈ͢Δɺͱ͍͏఺
    • ίϯςφͰந৅Խ͢Ε͹ͲͪΒ΋ಉ͡Α͏ʹۦಈͰ͖Δ
    • ΞϓϦέʔγϣϯͷ৔߹͸ىಈޙϓϩηε͕ಈ͖ଓ͚Δ
    • ΞΫηε͕ͳ͚Ε͹ϓϩηεΛऴྃ
    • ϑΝϯΫγϣϯ͸ϦΫΤετͰۦಈɺ࣮ߦޙऴྃ
    • => FaaS༝དྷͷΠϕϯτۦಈ΋OK
    !36
    ,OBUJWF͸ΞϓϦέʔγϣϯͱϑΝϯΫγϣϯΛ۠ผ͠ͳ͍
    

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37. ϦΫΤετͰϓϩηε͕ىಈ
    ΞΠυϧঢ়ଶͳΒϓϩηεΛఀࢭ
    

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38. ͋Εʜʁ͜ͷ࢓૊Έɺ
    Ͳ͔͜Ͱݟͨ͜ͱ͕͋ΔΑ͏ͳʜʁ
    

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39. ḪΔ͜ͱ೥લʜ
    

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40. ΋͏গ͠ḪΖ͏
    

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41. ḪΔ͜ͱ਺೥લʜ
    

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42. 'BTU$(*
    

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43. • CGIɿϦΫΤετຖʹϓϩηεੜ੒ɾഁغΛ࣮ߦ
    • FastCGIɿϦΫΤετຖʹϓϩηεΛੜ੒ɺ࢖͍ճ͢͜ͱͰੑೳUpɻΞΠυ
    ϧঢ়ଶ͕ଓ͍ͨ৔߹ϓϩηεΛഁغ
    • KnativeɿॳճϦΫΤετ࣌ʹPodΛੜ੒ɺFunctionͰͳ͚Ε͹࢖͍ճ͢ɻϦ
    ΫΤετ͕Ұఆظؒಧ͔ͳ͚Ε͹PodΛऴྃ
    !43
    'BTU$(*
    

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44. ࣅͨ࢓૊Έͩʂ
    

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45. • ϓϩΞΫςΟϒੑ
    • ΞϓϦέʔγϣϯ͕͋Β͔͡Ίىಈ͓ͯ͠Γɺঢ়ଶͷଈ࣌มߋ͸Ͱ͖ͳ͍͕ߴ଎ͳॲཧ͕
    Մೳͳੑ࣭
    • ىಈͬ͠ͺͳ͠ͳͷͰϦιʔεޮ཰͸ѱ͍
    • ࣄલʹαʔόΛىಈͯ͠ΞΫηεʹඋ͑ΔΞϓϩʔν
    • ϦΞΫςΟϒੑ
    • ϦΫΤετʹԠͯ͡ΞϓϦέʔγϣϯΛىಈ͢Δੑ࣭ͷ͜ͱ
    • ىಈͱఀࢭͷίετ͕͋Δ͕ɺϦιʔεޮ཰͸Α͍
    • ΞϓϦέʔγϣϯ͸ݱ࣮తͳ࣌ؒͰىಈͯ͘͠Δ͜ͱ͕લఏ
    !45
    ϓϩΞΫςΟϒੑͱϦΞΫςΟϒੑ
    

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46. • ϓϩΞΫςΟϒੑ
    • ΞϓϦέʔγϣϯ͕͋Β͔͡Ίىಈ͓ͯ͠Γɺঢ়ଶͷଈ࣌มߋ͸Ͱ͖ͳ͍͕ߴ଎ͳॲཧ͕
    Մೳͳੑ࣭
    • ىಈͬ͠ͺͳ͠ͳͷͰϦιʔεޮ཰͸ѱ͍
    • ࣄલʹαʔόΛىಈͯ͠ΞΫηεʹඋ͑ΔΞϓϩʔν
    • ϦΞΫςΟϒੑ
    • ϦΫΤετʹԠͯ͡ΞϓϦέʔγϣϯΛىಈ͢Δੑ࣭ͷ͜ͱ
    • ΞϓϦέʔγϣϯ͸ݱ࣮తͳ࣌ؒͰىಈͯ͘͠Δ͜ͱ͕લఏ
    • ىಈͱఀࢭͷίετ͕͋Δ͕ɺϦιʔεޮ཰͸Α͍
    !46
    ϓϩΞΫςΟϒੑͱϦΞΫςΟϒੑ
    •CGI΍FastCGIɺFaaS͕֘౰
    •FastCGI͸Ϧιʔεޮ཰ͱੑೳͷཱ྆ͷͨΊҰఆظؒىಈ
    •FaaS΋ϦΞΫςΟϒੑΛ࣋ͭϓϥοτϑΥʔϜͷҰͭ
    

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47. • @matsumotoryʹΑΓఏҊ(2017)
    !47
    'BTU$POUBJOFSͱ͍͏ΞʔΩςΫνϟ
    

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48. • Πϯελϯε௥Ճॲཧ͕௿଎Ͱ͋Δ
    • ֎෦͔Βͷఆظతͳ؂ࢹΛ༻͍ͨݕ஌ͱεέʔϧͩͱཻ౓͕ૈ͍
    • VMͷ৔߹ɺىಈ͕ಥൃΞΫηεʹؒʹ߹Θͳ͍έʔε͕͋Δ
    • Ϧιʔεͷར༻ޮ཰ͷ௿͞
    • جຊతʹΠϯελϯε͕ىಈɺϦιʔεΛ઎༗͠ଓ͚Δ
    !48
    'BTU$POUBJOFS͸ͲͷΑ͏ͳ໰୊ʹର͢ΔఏҊ͔
    

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50. • FastContainer͸ϗεςΟϯάαʔϏεͱ͍͏ྲྀΕͷ্ʹੜ·Εͨߟ
    ͑ํ
    • Knative͸Kubernetes΍Cloud Nativeͱ͍͏ྲྀΕͷ্ʹੜ·Εͨϓ
    ϩμΫτ
    • গ͠ҧ͏จ຺͔Βɺಉ͡Α͏ͳ΋ͷ͕ొ৔͖͍ͯͯ͠Δ
    • ϦΞΫςΟϒͳϓϥοτϑΥʔϜ͕ࠓޙ૿͑Δʁ
    !50
    ,OBUJWFͱࣅͨΞʔΩςΫνϟ͸ଞʹ΋ଘࡏ͢Δ
    

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51. • Knative͸൓ԠతʢϦΞΫςΟϒʣʹΞϓϦέʔγϣϯ΍ϑΝϯΫγϣϯΛ
    ىಈ͠ɺෛՙʹԠͯࣗ͡ಈ૿ݮ͢Δ
    • ΞϓϦέʔγϣϯɺϑΝϯΫγϣϯΛ໰ΘͣϦΞΫςΟϒͳ࢓૊Έ͕ࠓޙ૿
    ͑ͯ͘ΔͷͰ͸ͳ͍͔ʢAmazon Aurora Serverlessʣ
    • CGI࣌୅͸HTTPϦΫΤετ͚͕ͩͩͬͨɺݱ୅͸༷ʑͳΠϕϯτʹରͯ͠൓
    ԠతʹॲཧΛߦ͍ͬͯ͘ʢEventingͷൣғͳͷͰׂѪʣ
    !51
    ΞʔΩςΫνϟ·ͱΊ
    

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52. ϖϧιφ
    

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53. • ੡඼΍αʔϏεΛσβΠϯ͢Δࡍɺλʔήοτͱͯ͠૝ఆ͢ΔՍۭ
    ͷϢʔβʔ૾ͷ͜ͱ
    • KnativeͷλʔήοτͱͳΔϢʔβʔ͸Ͳ͏͍͏ਓ͔ʁͲ͏͍͏໨
    త΍ϞνϕʔγϣϯΛ͍࣋ͬͯΔͷ͔
    • ͜͏͍͏͜ͱΛܾΊ͓ͯ͘͜ͱͰɺKnativeͷϓϩμΫτͱͯ͠ͷํ
    ޲ੑ͕ϒϨͳ͍Α͏ʹ͢Δ
    !53
    ϖϧιφʁ
    

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54. • ར༻ऀͱͯ͠͸DeveloperͱOperatorͷ2छྨʹΘ͔Ε͍ͯΔ
    • Developer
    • Operator
    !54
    ,OBUJWF4FSWJOHͷར༻ऀ͸Ͳ͏͍͏ϖϧιφ͔
    

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55. • ΠϯϑϥΛҙࣝͤͣʹεςʔτϨεͳΞϓϦέʔγϣϯΛ։ൃɾ࣮
    ߦ͢ΔΤϯδχΞ
    • HobbyistɺBackend SWEɺFull stack SWEɺSREͳͲ
    • ϢʔβʔετʔϦʔྫ
    • ෳ਺ͷίʔυΛσϓϩΠ
    • มߋͷϩʔϧόοΫ
    • ΞϓϦέʔγϣϯͷ؂ࢹ
    !55
    %FWFMPQFS
    

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56. • Knative ServingͱKubernetesͷಋೖɾ؅ཧ΍૊৫ϙϦγʔɺηΩϡ
    ϦςΟύονͷద༻ʹϑΥʔΧε
    • HobbyistɺCluster administratorɺSecurity EngineerͳͲ
    • ϢʔβʔετʔϦʔ
    • Knative ServingΫϥελʔΛ࡞੒͢Δ
    • Ϧιʔεར༻ʹ੍͍ͭͯޚͨ͠Γ՝ۚ͢Δ
    • ΞϓϦέʔγϣϯͷ؂ࠪ΍ύονద༻
    !56
    0QFSBUPS
    

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57. • ยํͷࢹ఺͕͚͍ܽͯΔͱɺยํʹෛՙ͕͔͔Δ
    • ΞϓϦέʔγϣϯ։ൃऀ͸շదʹ։ൃʹઐ೦Ͱ͖Δ
    • ϓϥοτϑΥʔϜͷӡ༻ଆ͸ϓϥοτϑΥʔϜʹઐ೦Ͱ͖Δ
    !57
    ྆ํͷࢹ఺Λҙ͍ࣝͯ͠Δͷ͸҆৺ײ͕͋Δ
    

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58. ·ͱΊ
    

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59. • Knative Servingͷΰʔϧ͸ɺPaaS/FaaSͷ֓೦ΛؚΉαʔόʔϨε
    ϫʔΫϩʔυͷͨΊͷAPIͱπʔϧΛఏڙ͢Δ͜ͱ
    • 2018೥9݄࣌఺Ͱ͸ΞʔΩςΫνϟͱAPIͷΈఏڙ͞Ε͍ͯΔঢ়
    گɻʢ·ͩެࣜͰ͸ͳ͍͕ʣCLIπʔϧ͕ొ৔࢝͠Ί͍ͯΔ
    • IaaSɺCaaSɺPaaSͱ͍ͬͨج൫ٕज़ͷԆ௕ઢ্ʹ͋ΔϓϩμΫτ
    ͰɺKnativeͰ͸ͳͯ͘΋͍͍͕ߟ͑ํ͸஌͓ͬͯ͘ͱΑ͍ͱࢥ͏
    !59
    ·ͱΊ
    

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60. We are hiring!
    Senior Software Engineer
    Software Engineer (Site Reliability)
    Senior Software Engineer (Site Reliability)
    

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