Re:silience から始めるカオスエンジニアリング生活 / A Life of Chaos Engineering Starting with Resilience

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@itkq ٕज़෦ SRE άϧʔϓ Re:silience ͔Β࢝ΊΔ ΧΦεΤϯδχΞϦϯάੜ׆

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whoami 2 • 2018 ೥৽ଔೖࣾ • ٕज़෦ SRE άϧʔϓ • ΧΦεେਉ • औΓ૊Έ: ଱ো֐ੑͷ޲্ͳͲ • @itkq

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Chaos Engineering 3 Χ Φ ε Τ ϯ δ χ Ξ Ϧ ϯ ά

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Chaos Engineering ͱ͸ 4 • Principles of Chaos Engineering* • Ξφϩδʔ: ༧๷઀छ ** ΧΦεΤϯδχΞϦϯά͸ɺ෼ࢄγεςϜʹ͓͍ͯγεςϜ͕ ෆ҆ఆͳঢ়ଶʹ଱͑Δ͜ͱͷग़དྷΔ؀ڥΛߏங͢ΔͨΊͷݕূ ͷن཯Ͱ͢ɻ l ** https://www.quora.com/What-is-chaos-engineering * https://principlesofchaos.org/?lang=JAcontent#

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Chaos Engineering ΍͍ͬͯ͘ 5 • Chaos Monkey* ͰϥϯμϜʹΠϯελϯεΛམͱ͠·͢ * https://github.com/Netﬂix/SimianArmy/wiki/Chaos-Monkey

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Chaos Engineering ΍͍ͬͯ͘ 6 • Chaos Monkey* ͰϥϯμϜʹΠϯελϯεΛམͱ͠·͢ མͱ͠·ͤΜ * https://github.com/Netﬂix/SimianArmy/wiki/Chaos-Monkey

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Chaos Engineering ͬͯͳΜ͚ͩͬ 7 • Chaos Engineering Chaos Monkey? • “ϥϯμϜʹམͱ͢͜ͱ” ͸ॏཁͰ͸ͳ͍ • ͳͥ Chaos Engineering ͕ඞཁͳͷ͔?

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Agenda 8 • ΫοΫύου͕ Chaos Engineering Λ΍Δཧ༝ • ϚΠΫϩαʔϏεΞʔΩςΫνϟͷো֐΁ͷ໰୊ҙࣝ • ΫοΫύουͰͲͷΑ͏ʹ Chaos Engineering Λ࢝Ί͔ͨ

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Microserivces* ΁ͷಓͷΓ 9 Ϛ Π Ϋ ϩ α ʔ Ϗ ε Ξ ʔ Ω ς Ϋ ν ϟ * https://microservices.io/

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10 Developers cookpad.com* * https://www.slideshare.net/hashikem/rails-presentation-667968 2008

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11 The Recipe for the World’s Largest Rails Monolith * * https://speakerdeck.com/a_matsuda/the-recipe-for-the-worlds-largest-rails-monolith 2015 cookpad.com

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12 The Recipe for the World’s Largest Rails Monolith * * https://speakerdeck.com/a_matsuda/the-recipe-for-the-worlds-largest-rails-monolith cookpad.com େϞϊϦεظ αʔϏε։ൃ଎౓ͷ௿Լ ϦϦʔε଎౓ͷ௿Լ

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13 New service! API cookpad.com

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14 New Internal Service! API cookpad.com

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15 API cookpad.com αʔϏεͷ։ൃ଎౓ͷ޲্ ϦϦʔε଎౓ͷ޲্ ෳࡶੑͷ૿Ճ Microservices ΁ͷҠߦ

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16 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ

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17 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ

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18 ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ cookpad.com

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19 ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ cookpad.com େ Microservices ظ αʔϏεؒ௨৴ͷঢ়گ͕͙͢ʹ෼͔Βͳ͍ ࿈࠯తো֐

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20 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ Service Mesh! α ʔ Ϗ ε ϝ ο γ ϡ

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Service Mesh in Cookpad* 21 Control plane Data plane cookpad/itacho App Service A ࣮ࡍͷ௨৴ ௨৴ͷઃఆ Service B Service C ΞϓϦέʔγϣϯϨΠϠʔ ͔Β௨৴Λ੾Γ཭ͨ͠ IUUQTUFDIMJGFDPPLQBEDPNFOUSZ

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22 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ Service Mesh! αʔϏεؒ௨৴ͷঢ়گ೺Ѳ͕Ͱ͖Δ ద੾ͳϦτϥΠઃఆͳͲʹΑΓҰ࣌తͳো֐ʹ଱͑ΒΕΔ Service Mesh ಋೖ

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23 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ ☠ ☠

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24 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ ☠ ☠ “Everything fails, all the time”

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25 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ cookpad.com ґଘઌ͕͋ΔαʔϏε ্ྲྀ͕ো֐ʹͳͬͨ৔߹ ʮҾ͖ͣΒΕΔʯ΂͖…?

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26 ো֐ʹର͢Δ໰୊ҙࣝ • αʔϏε͸ʮਖ਼͘͠ʯյΕΔ͔ • ଱ো֐ੑ (Resilience) ͕͋Δ͔ʁ • ো֐࣌ʹͲͷΑ͏ͳڍಈΛ͢Δͷ͔ • ͢΂ͯͷτϨʔε͸೉͍͠ • ҙਤతʹো֐Λىͯ͜͠ΈΔ → Fault Injection

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27 Chaos Engineering for us ΧΦεΤϯδχΞϦϯά͸ɺ෼ࢄγεςϜʹ͓͍ͯγεςϜ͕ ෆ҆ఆͳঢ়ଶʹ଱͑Δ͜ͱͷग़དྷΔ؀ڥΛߏங͢ΔͨΊͷݕূ ͷن཯Ͱ͢ɻ l Microservices Ͱൃੜ͢Δো֐ʹର͢Δ  ϓϩΞΫςΟϒͳΞϓϩʔν

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28 “Chaos Engineering  ΍͍ͬͯ͘એݴ”

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29 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά DPPLQBE57 ΫοΫύουϚʔτ ☠ ☠ Important Layer: Network

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Network Fault Injection Platform 30

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Service Mesh in Cookpad* 31 Control plane Data plane cookpad/itacho App Service A Service B Service C Fault Injection Return 503 + 5s IUUQTUFDIMJGFDPPLQBEDPNFOUSZ

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Network Fault Injection Platform 32 Control plane Data plane cookpad/itacho App Service A Service B Service C hako-console* UI ૢ࡞ IUUQTUFDIMJGFDPPLQBEDPNFOUSZ New!

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ͲͷΑ͏ʹ Chaos Engineering Λ ࢝ΊΔ͔ 33

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34 Known unknowns

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35 Known knowns γεςϜ A ͕Ԡ౴͠ͳ͘ͳΔ͜ͱΛ஌͓ͬͯΓ γεςϜ B ʹͲΕ͙Β͍ӨڹΛٴ΅͔͢஌͍ͬͯΔ γεςϜ A ͕Ԡ౴͠ͳ͘ͳΔ͜ͱΛ஌͍ͬͯΔ͕ ଞͷγεςϜʹͲΕ͙Β͍ӨڹΛٴ΅͔͢஌Βͳ͍ γεςϜ B ͕Ԡ౴͠ͳ͘ͳΔ͜ͱΛߟ͑ͨ͜ͱ͕ͳ͍͠ ଞͷγεςϜʹͲΕ͙Β͍ӨڹΛٴ΅͔͢஌Βͳ͍ Known unknowns Unknown unknowns ஌ࣝͷ޿͕Δํ޲

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36 γεςϜ A ͕Ԡ౴͠ͳ͘ͳΔ͜ͱΛ஌͓ͬͯΓ γεςϜ B ʹͲΕ͙Β͍ӨڹΛٴ΅͔͢஌͍ͬͯΔ γεςϜ A ͕Ԡ౴͠ͳ͘ͳΔ͜ͱΛ஌͍ͬͯΔ͕ ଞͷγεςϜʹͲΕ͙Β͍ӨڹΛٴ΅͔͢஌Βͳ͍ γεςϜ B ͕Ԡ౴͠ͳ͘ͳΔ͜ͱΛߟ͑ͨ͜ͱ͕ͳ͍͠ ଞͷγεςϜʹͲΕ͙Β͍ӨڹΛٴ΅͔͢஌Βͳ͍ Chaos Engineering ஌ࣝͷ޿͕Δํ޲ Known knowns Known unknowns Unknown unknowns

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37 Fault Injection Testing ຊ൪؀ڥͰͷܧଓతͳΧΦε࣮ݧ ஌ࣝͷ޿͕Δํ޲ Chaos Engineering Known knowns Known unknowns Unknown unknowns

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38 Fault Injection Testing ຊ൪؀ڥͰͷܧଓతͳΧΦε࣮ݧ ஌ࣝͷ޿͕Δํ޲ Chaos Engineering Known knowns Known unknowns Unknown unknowns ·ͣ͸͔͜͜Β࢝ΊΔ

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39 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά Network Fault Injection ຊ൪ͱಉ͡ϝογϡߏ଄ εςʔδϯά

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40 cookpad.com ೝূ Ϣʔβ৘ใ "#ςετ ݕࡧ ΫοΫύουϒϩά Network Fault Injection ຊ൪ͱಉ͡ϝογϡߏ଄ εςʔδϯά εςʔδϯάͰ Fault Injection Testing Ωϟογϡʹؔ܎͢Δ଱ো֐ੑͷ໰୊ΛൃݟɾվળͰ͖ͨ

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·ͱΊ 41 • ϚΠΫϩαʔϏε࣌୅ͷো֐ʹର͢Δ໰୊ҙࣝ • Network Fault Injection Λى఺ͱ͢Δ Chaos Engineering ΁ • Known-unknowns ͷݕূɾվળ͔Β࢝ΊΔ • ࠓޙ΋γεςϜશମͷ଱ো֐ੑͷ޲্ʹऔΓ૊Ή