CoreOS 運用の所感 - Speaker Deck

CoreOS 運用の所感

by Seigo Uchida

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@spesnova CoreOSӡ༻ͷॴײ

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@spesnova

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Favorites &

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No content

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Dockerಛूॻ͖·ͨ͠ 2015/04/23 ൃച

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Dockerಛूͷ໨࣍ 1. ੒Γཱ͔ͪΒֶͿجຊͱશମ૾ 2. ࣮ઓ౤ೖʹ޲͚ͯ཈͓͖͍͑ͯͨצॴ 3. ຊ൪ӡ༻Λݟਾ͑ͨΠϝʔδͷ࡞Γํ 4. Capistrano, Swarm ʹΑΔΦʔέετϨʔγϣϯͷ࣮ફ 5. ίϯςφͷCIɺϞχλϦϯάɺϩάɺϗετͷϝϯςφϯε

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ࠓ೔ͷ࿩ CoreOS ӡ༻ͷॴײ ஌ݟͱ͍͏΄Ͳཷ·ͬͯͳ͍…

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ࠓͷ CoreOS ӡ༻ํ๏

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Ͳ͜Ͱ࢖ͬͯΔ͔ • CoreOS on EC2 • ը૾ϦαΠζίϯςφͷϗετʹ • ࣍͸ Elasticsearch ΫϥελͰ

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σϓϩΠ • ৽͍͠ EC2 Πϯελϯε౤Լ • cloud-config Ͱίϯςφىಈ • ELB ഑ԼΛϒϧʔάϦʔϯ

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CoreOS on EC2 Λىಈ IUUQRJJUBDPNTQFTOPWBJUFNTCEDFFBFE

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ϩά • journal Λશ෦ logentries ʹૹΔ • fluend ίϯςφ࢖ͬͯ΋Α͍ͱࢥ͏ IUUQRJJUBDPNTQFTOPWBJUFNT⒎CDFEEBC

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ϞχλϦϯά

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etcd,fleet ͸ࠓͷͱ͜ΖΦϑ ·ͣ͸ etcd,fleet Ҏ֎ͷ஌ݟΛஷΊΔ

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ͳͥ etcd,fleet ࢖Θͳ͍ʁ etcd,fleet ࢖͏ = μΠφϛοΫΦʔέετϨʔγϣϯ => ϦιʔεϚωδϝϯτͲ͏͢Δʁ => μΠφϛοΫϧʔςΟϯά͸? => ͦͷଞॾʑμΠφϛοΫʹ

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μΠφϛοΫΦʔέετϨʔγϣϯ • fleet ͸ϦιʔεϚωδϝϯτ͠ͳ͍ • ॾʑ etcd ͷ҆ఆӡ༻͕લఏ • ϝϦοτ΋େ͖͍ => Ops ଆʹ΋ͨΒ͞ΕΔෳࡶੑ => Ͳ͏ϋϯυϦϯά͢Δ͔໛ࡧத

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ࣗಈΞοϓσʔτ΋ࠓ͸Φϑ ࣗಈΞοϓσʔτͰશ୆ϦϒʔτࠔΔ => locksmith ͕ඞཁ => etcd ͕ඞཁ => etcd ͷ҆ఆӡ༻͕લఏ৚݅

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खಈͰΞοϓσʔτ IUUQRJJUBDPNTQFTOPWBJUFNTFGBEDBFDDFF

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CoreOS ӡ༻ॴײ

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etcd,fleetΦϑͰ΋ϝϦοτ͸͋Δ • ϗετϚγϯߏஙλεΫ͕΄΅ͳ͍ • AMI ম͘ඞཁ͢Βͳ͘ͳͬͨ • ηΩϡϦςΟରԠָ͕ • CoreOS ىಈ଎͍ • ίϯςφͱϗετͷ෼཭͕ਐΜͩ

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ྫ: GHOST ରԠ • alpha ͱ beta ʹΞοϓσʔτ͘Δ • 1೔஗ΕͰ stable ʹΞοϓσʔτ͘Δ • ࠷৽όʔδϣϯͰ EC2 ౤Լͯ͠ϒϧʔάϦʔϯ • ·ͨ͸ ELB ͔Β֎ͯ͠ΞοϓσʔτͱϦϒʔτ

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ૺ۰ͨ͠໰୊ • CoreOS ͕ EC2 ͰΫϥογϡ #204 • CoreOS Ξοϓσʔτதʹ btrfs ىҼͰ Disk latency ΊͬͪΌ্͕Δ #259, #263 • Outband traffic ʹ໰୊͋Γɺίϯςφ಺ͷαʔϏε͕ ໊લղܾͰ͖ͳ͍ #297

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CoreOS channel બͼ • alpha ͸඼࣭తʹ alpha ͱ͍͏ҙຯ͡Όͳ͍ • Ξοϓσʔτ͕དྷΔස౓Λද͢ • alpha ͸਺೔ຖɺbeta ͸1,2िؒ͝ͱ, stable ͸ 1ϲ݄ຖ • stable ͕ग़ͨ໰୊͕ alpha, beta ͷॱͰ௚Δ • alpha ͸க໋తͳΞοϓσʔτ΋དྷΔͷͰආ͚Δ • stable ͕ stable ʹͳΔ·Ͱ͸ beta ͕ྑ͍?

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Tips: CoreOS ͷόʔδϣχϯά ࠷ॳͷϏϧυ͔Βܦͬͨ೔਺Λࢦ͢ ɹ࠷ॳͷϏϧυ͸ 2013 ೥ 07 ݄ 01 ೔

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΍Γ͍ͨ͜ͱ

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Ops ͕ϘτϧωοΫͰεϐʔυײམͱͨ͘͠ͳ͍

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ηϧϑαʔϏεԽ Dev ͱ Ops ͕Ұॹʹ Chef Ϩγϐॻ͘ Ops ͕ Chef Λద༻ Dev ͕ Dockerfile ॻ͘ɺΠϝʔδΛϏϧυ Dev ͕ίϯςφΛσϓϩΠ

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Dev, OpsΛྑ͍ҙຯͰ෼཭͢Δ Dev owns the containers Ops owns the platform

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Ops behind the API Dev owns the containers Ops owns the platform

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Ͳ͏͢Δ͔ݕ౼த • μΠφϛοΫΦʔέετϨʔγϣϯඞཁ • k8s ࢖͏? • Heroku tokyo region ଴ͪ? • flynn, deis, latice Ͱ OSS PaaSʁ • ECS? GKE ʹ೚ͤΔʁ • Hashicorp ੡…ʁ • Swarmʁ

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·ͱΊ

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·ͱΊ • etcd,fleet ΦϑͰ΋ϝϦοτ͋Δ • όά΋͋Δ • Ops behind the API ʹνϟϨϯδ • ҙݟަ׵ɾϊ΢ϋ΢ڞ༗͠·͠ΐ͏