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Debugging for MicroService on Kubernetes 1

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ࣗݾ঺հ ໊લ: ү ݡେ(@go_vargo) ॴଐ: גࣜձࣾίϩϓϥ ɹɹ Πϯϑϥάϧʔϓ ୈ2άϧʔϓ झຯ: Ϋϥ΢υωΠςΟϒܥͷMeetup΁ͷࢀՃ CKA/CKADऔಘ͠·ͨ͠ https://qiita.com/go_vargo/items/3644c3a44734e2c155f4 2

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ࠓ೔ͷςʔϚͷσόοά Remote Debugging ผͷίϯϐϡʔλʔ(αʔόʔ)Ͱ഑ஔɾ࣮ߦ͞Ε ͍ͯΔΞϓϦέʔγϣϯΛσόοά͢Δ͜ͱ 3

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ʙ Cloud Nativeʹ͓͚ΔDebugging ʙ 4

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CNCF Cloud Native Interactive Landscape https://landscape.cncf.io/images/landscape.png 5

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CNCF Cloud Native Interactive Landscape https://landscape.cncf.io/images/landscape.png 6

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Debugging Tool for Cloud Native 7 Squash Telepresence https://www.telepresence.io/ https://squash.solo.io/

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SquashɾTelepresenceૣݟද 8 όʔδϣϯ ༻్ ڧΈ Squash ϦϞʔτ σόοά όάͷτϨʔε ϩδοΫͷ֬ೝ Telepresence Πϝʔδͷ ஔ׵ ΠϝʔδϏϧυ&σϓϩΠ ͷ୹ॖ ͦΕͧΕ༻్͕ҧ͏ͷͰɺ࢖͍͍ͨ࣌͸࢖͍෼͚Δ → ࠓճ͸Squashʹண໨ ஫ҙ఺͕͍͔ͭ͋͘ΔͷͰཹҙ͍ͯͩ͘͠͞(ޙड़) Telepresenceʹ͍ͭͯ͸Cloud Native Meetup #7 ʮtelepresence Ͱ࢝ΊΔ k8s ࣌୅ͷϩʔΧϧ։ൃʯࢀর https://speakerdeck.com/shiro16/telepresence-deshi-meru-k8s-shi-dai-falserokarukai-fa

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9 Squashͷ։ൃݩ Chaos Debugging: Finding and Fixing Microservice Weak Points - Idit Levine & Mitch Kelley, Solo.io
 https://www.youtube.com/watch?v=jkcFFr8lLTA ΑΓൈਮ solo.io: https://www.solo.io/

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10 ɾϚΠΫϩαʔϏεͷσόοά ɾPod಺ͷίϯςφͷσόοά ɾαʔϏεͷσόοά ɾϒϨʔΫϙΠϯτͷઃఆ ɾίʔυͷεςοϓॲཧ ɾม਺ͷධՁͱमਖ਼ ɾͦͷଞ௨ৗͷσόοΨʔͰͰ͖Δ͜ͱ SquashΛ࢖͏ͱͰ͖Δ͜ͱ KubernetesͰͷΤϥʔͷௐࠪํ๏͸ɺkubectl log΍describeͰ֬ೝ → ϩά΍Πϕϯτʹग़ͯ͜ͳ͍Τϥʔ͸ௐࠪͰ͖ͳ͍ → SquashΛ࢖͏ͱϩάʹग़ͯ͜ͳ͍ΤϥʔͷݪҼΛௐࠪͰ͖Δʂ

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11 Debugger ɾDelve(Go) ɾJava ɾGDB(2019) ɾNodejs(2019) ɾPython - ptvsd(2019) IDE ɾVisual Studio Code ɾIntelliJ(※։ൃ͕ࢭ·͍ͬͯͯಈ͔ͳ͍ɻ2019ߋ৽༧ఆ?) ɾEclipse(2019) RoadMapͱͯ͠Service Mesh(Istio)ͱͷ૊Έ߹Θͤ΋2019೥ʹܭը Squashͷαϙʔτର৅

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ʙ Demo ʙ 12

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13 ެࣜQuick Start: 
 https://squash.solo.io/overview/ Qiitaʹৄࡉखॱ΋ࡌ͍ͤͯ·͢ https://qiita.com/go_vargo/items/df9084a080f66f9da0cc Squash Quick Start

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,VCFSOFUFT$MVTUFS 14 Demo Application(1/2) %FQMPZNFOU
 &YBNQMF4FSWJDF (P %FQMPZNFOU
 &YBNQMF4FSWJDF (PPS+BWB DBMDVMBUF 3&45"1* Laptop Delve VSCode ϩʔΧϧ؀ڥʹ͸ࣄલʹΠϯετʔϧ ɾGo ɾDelve ɾSquashctl ɾVisual Studio Code ɾVisual Studio Code Extension for Squash

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,VCFSOFUFT$MVTUFS EFGBVMU/BNFTQBDF 15 Demo Application(2/2) %FQMPZNFOU
 &YBNQMF4FSWJDF (P %FQMPZNFOU
 &YBNQMF4FSWJDF (PPS+BWB DBMDVMBUF 3&45"1* TRVBTIEFCVHHFS/BNFTQBDF VSCode 1MBOL1PE

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16 ɾσόοά͕ऴΘͬͨޙʹɺPlankͷPod͕࡟আ͞ Εͳ͍ͷͰࣗ෼ͰClean Up͢Δ ɾσόοάͷ౓ʹιʔεϚοϐϯάͷઃఆΛߦ͏ ඞཁ͕͋Δ(ಛʹGoݴޠ) ࢀߟ: ஫ҙ఺ https://squash.solo.io/configuration/

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17 ɾSquash͸ɺDebugger for MicroService ɾର৅Debugger/IDEͱ΋ʹ͜Ε͔Βͷ։ൃʹظ଴ ɾTelepresenceͱ͸έʔεʹΑͬͯ࢖͍෼͚ ͋͘·ͰDebuggerͳͷͰɺຊ൪؀ڥͰ͸࢖Θͳ͍ Α͏ʹʂ Squashͷ͜Ε͔Βʹظ଴ʂ ·ͱΊ

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18 8&"3&)*3*/(ʂʂ ˝*OGSBTUSVDUVSF&OHJOFFS -JOVY $MPVE4QBOOFS .Z42- ($1 (,& 4QJOOBLFS ˝4FSWFSTJEF&OHJOFFS -JOVY 1)1 +BWB (P $MPVE4QBOOFS .Z42-