EC2からECSへ移行を始めたお話

by Takayuki Yoshioka

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&$͔Β&$4΁ҠߦΛ ࢝Ί͓ͨ࿩ 5BLBZVLJ:PTIJPLB '"3&/%5FDIOPMPHJFTDP -UE+"846(4IJNBOF

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ࣗݾ঺հ ໊લ  ٢Ԭོߦ ॴଐ  ϑΝʔΤϯυςΫϊϩδʔגࣜձࣾ  +"846(4IJNBOF  .BUTVFSC ۀ຿  ݩϑϩϯτΤϯυΤϯδχΞ  ݩΞϓϦέʔγϣϯΤϯδχΞ  ݱΠϯϑϥΤϯδχΞ ޷͖ͳαʔϏε  $MPVE

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ΞδΣϯμ  ʙɹ&$͔Β&$4΁ҠߦΛ࢝Ί͓ͨ࿩ɹʙ w ܦҢʢഎܠʣ w ݹ͍ߏ੒ w ৽͍͠ߏ੒ w 1PJOU w ՝୊ w ·ͱΊ

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ܦҢʢഎܠʣ w ࣾ಺αʔϏεɺϗεςΟϯάαʔϏεͷΠϯϑϥΛࠓ෩ ͷΫϥ΢υʹ͍ͨ͠ w ৽͍͠αʔϏεͷج൫Λߟ͑Δ

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ݹ͍ߏ੒

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AWS Cloud Internet Amazon RDS Proxy Server (EC2) App Server (EC2) ϗεςΟϯάαʔϏε αʔϏεఏڙதͷγεςϜͳͷͰৄࡉ΅΍͔͠ؾຯʜ

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VPC Internet EC2 Database Rails App ࣾ಺αʔϏε

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৽͍͠ߏ੒

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VPC Internet ALB Service Task ECS Task Definition Task container Cluster w &$  ஋ஈ͍҆  EPDLFSWPMVNFQMVHJO࢖͑Δ w 'BSHBUF  ϑϧϚωʔδυ  ϑΝΠϧӬଓԽͰ͖ͳ͍  &$ʹ͘Β΂஋ஈߴΊ

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VPC Internet RDS ALB Service Task Task ECS ( Fargate ) CodePipeline Registry Task Definition ϗεςΟϯάαʔϏε 4BB4 Systems Manager CloudFormation ˞༁͋ͬͯݱࡏݕূத S3 ΞϓϦέʔγϣϯʹมߋΛՃ͑ͨ 4ରԠͷQMVHJO࢖༻ "QBSUNFOUʢϚϧνςφϯτʣ࢖༻ ஫ʣϦʔδϣϯ "; 4( $MPVE8BUDI -PHͳͲলུ͍ͯ͠·͢ɻ

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VPC Internet RDS ALB Service Task Task ECS ( EC2 ) CodePipeline Registry Task Definition ࣾ಺αʔϏε EFS Systems Manager CloudFormation Ҡߦத ΞϓϦέʔγϣϯ 3BJMT"QQMJDBUJPO +FOLJOT (JU-BCͳͲ ஫ʣϦʔδϣϯ "; 4( $MPVE8BUDI -PHͳͲলུ͍ͯ͠·͢ɻ

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1PJOU &$4Λબ୒ʢ%PDLFSͰຊ൪؀ڥʣ $MPVE'PSNBUJPOͰ؀ڥߏங 4ZTUFNT.BOBHFSར༻ w &$41JQFMJOFͷ૊Έ߹ΘͤͰ։ൃ΋αʔό؅ཧ΋ίετܰݮʢ৺ཧతɾ࣌ؒతʣ w ຊ൪ɺεςʔδϯάɺςετ؀ڥͷߏங͕؆୯ʹͳͬͨ w 4ZTUFNT.BOBHFSແྉͰศརʂ 3VCZ 3BJMT ίϯςφ 1JQFMJOFͷಋೖ w 1JQFMJOFศརʂ"84Ͱ׬݁Ͱ͖Δʂʂ

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&$4Λબ୒  ʢίϯςφͰຊ൪؀ڥʣ

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Α͔ͬͨ͜ͱ  ʢ&$4ίϯςφʣ σϓϩΠ࣌ͷ৺ཧతෛ୲ͷܰݮ w #MVF(SFFOEFQMPZNFOU w ͙͢ʹϩʔϧόοΫͰ͖Δ҆৺ײ w ຊ൪؀ڥͱಉ͡؀ڥͰ։ൃ͕Ͱ͖Δ

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Α͔ͬͨ͜ͱ  ʢ&$4ίϯςφʣ αʔό؅ཧͷෛ୲ܰݮ w ৑௕ԽɺߴՄ༻ੑ͕؆୯ w ".*ͷ؅ཧ΋ಛʹෆཁʢ&$ͷ"VUP4DBMFͷΑ͏ͳ w ӡ༻ίετΛܰݮ͍ͨ͠ʢ&$ɾσϓϩΠͷ؅ཧʣ w ϛυϧ΢ΣΞͷ؅ཧ͕༰қʹͰ͖Δ

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Α͔ͬͨ͜ͱ  ʢ&$4ίϯςφʣ %PDLFSWPMVNFQMVHJOʹରԠ ʢετϨʔδͷӬଓԽʣ

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ͦͷଞͷબ୒ʹ͍ͭͯ &,4Λར༻͠ͳ͔ͬͨཧ༝  ౦ژϦʔδϣϯɺٕज़໘ʢֶशίετʣɺֹۚ

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1JQFMJOFͷಋೖ

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Α͔ͬͨ͜ͱ  ʢσϓϩΠɾςετͷࣗಈԽʣ σϓϩΠͷͨΊʹɺ44)ͰαʔόʹೖΒͳͯ͘ྑ͘ͳͬ ͨɻʢ͞ΑͳΒΦϨΦϨσϓϩΠʣ ςετ࣮ߦ๨Ε๷ࢭ %PDLFS*NBHFΛ࢖͏ͱ؆୯ͩͬͨ

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CodeCommit User Code Pipeline ECR CodeBuild #VJME %FQMPZ TaskDefinition Service Cluster EPDLFSDPNQPTF HJUQVTI QSF@CVJMEˠCVJME ˠQPTU@CVJME CVJMETQFDZNM ࣮ߦ 4PVSDF Jenkins  Test ௨஌

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$MPVE'PSNBUJPOͰ  ؀ڥߏங

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"84ϦιʔεΛࣗಈͰߏஙͰ͖ΔαʔϏε ςϯϓϨʔτ ઃఆϑΝΠϧ ελοΫ ςϯϓϨʔτΛݩʹ࡞੒͞ΕΔϦιʔεΛ؅ཧ͢Δ୯Ґ $MPVE'PSNBUJPO

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໨తɾཧ༝ w खॱॻͱ͔ॻ͖ͨ͘ͳ͍ w BXTDMJ BOTJCMF૊Έ߹ΘͤͪΐͬͱπϥΠ w ॳظߏங͸͜ΕͰશͯͰ͖Δʢ%PDLFSͷԸܙʣ w ؀ڥͷ࠶ݱੑͷ֬อʢผΞΧ΢ϯτͰ΋ʣ w :".-Ͱॻ͚ΔΑ͏ʹͳͬͯͨ

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஫ҙ఺ wελοΫͷωετʹ͍ͭͯ wςϯϓϨʔτͷ࠶ར༻ w$'OҎ֎ʢ(6* $-*ͳͲखಈʣͰߋ৽͢ΔͱյΕΔ͔΋ wֶशίετߴΊ

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CloudFormation 71$ &$4 4FSWJDF ʜ 3%4 71$ 4VCOFU 4( FUDʜ "-# SVMF UBSHFU MJTUFOFS $MVTUFS "VUP4DBMF &'4 *". 3PMF 4( FUDʜ %/4 5BTL%FpOJUJPO 4FSWJDF "VUP4DBMF 5BSHFU 3VMF 3PMF *". 3%4 4VCOFU 4( ओʹ௥Ճɾมߋ͢ΔελοΫ

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4ZTUFNT.BOBHFSͷ ར༻

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໨తɾཧ༝ w ύεϫʔυ౳ͷ؅ཧ w 44)ϩάΠϯ

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3VCZ 3BJMT ίϯςφ w ίϯςφͷىಈ͸ૣ͍͚Ͳɺ3BJMTͷىಈ͸஗͍ w ىಈ࣌ʢFOUSZQPJOUTIʣͷॲཧΛͳΔ΂ܰ͘͘ w CVOEMFJOTUBMM NJHSBUJPOͷλΠϛϯά w ϝϞϦʔͷফඅྔ w 3BJMTϚϧνςφϯτԽ

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՝୊ 3BJMTΞϓϦͷσϓϩΠ ࣾ಺Ͱͷ%PDLFSͷ෍ڭ׆ಈ ؀ڥม਺૿΍͗͢͠ʹ஫ҙ ϩΪϯά ηΩϡϦςΟʔ

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·ͱΊ

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1PJOU &$4Λબ୒ʢ%PDLFSͰຊ൪؀ڥʣ $MPVE'PSNBUJPOͰ؀ڥߏங 4ZTUFNT.BOBHFSͰӡ༻؅ཧ w &$41JQFMJOFͷ૊Έ߹ΘͤͰ։ൃ΋αʔό؅ཧ΋ίετܰݮʢ৺ཧతɾ࣌ؒతʣ w ຊ൪ɺεςʔδϯάɺςετ؀ڥͷߏங͕؆୯ʹͳͬͨ w 4ZTUFNT.BOBHFSແྉͰศརʂ 3VCZ 3BJMT ίϯςφ 1JQFMJOFͷಋೖ w 1JQFMJOFศརʂ"84Ͱ׬݁Ͱ͖Δʂʂ %PDLFSʢίϯςφʣͷԸܙ w ʜͦ΋ͦ΋ίϯςφʹ޲͍ͯͳ͍ΞϓϦʢγεςϜʣ΋͋Δɻ

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͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ