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Next FRESH! Applications with Amazon ECS 2015/11/20 JAWS-UGίϯςφࢧ෦ #3 #jawsug_ct @stormcat24
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Who? ‣ Akinori Yamada ( @stormcat24 ) ‣ http://stormcat.hatenablog.com/ ‣ CyberAgent, Inc ‣ Ameba౷ׅຊ෦ FRESHάϧʔϓ ‣ ServerSide / DevOps ‣ ͖ͳݴޠScala
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Agenda ‣ AmebaFRESH! ‣ Architecture & ECS ‣ Blue Green Deployment ‣ Diet Docker Image ‣ Local Development ‣ ecs-formation ‣ Others
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AmebaFRESH!
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‣ ੜ์ૹಈը৴ϓϥοτϑΥʔϜ ‣ جຊແྉ ‣ PCϒϥβ / iOS / Android ‣ εϚϗφΠζυ͞ΕͨUI ‣ ߴ࣭ͳಈը৴ ‣ 201512݄Ұൠެ։༧ఆ ‣ ݱࡏΫϩʔζυެ։த ‣ ※AbemaTVͱผͷαʔϏεͰ͢YO
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‣ 2015/04͔ΒϓϩδΣΫτ։࢝ ‣ ϓϩδΣΫτϝϯόʔ30໊ ‣ Serverside ☓ 6 ‣ Frontend ☓ 6 ‣ iOS ☓ 4 ‣ Android ☓ 4 ‣ Designer ☓ 3
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‣ Movie & Broadcasting ‣ RTMP Publishing ‣ HTTP Live Streaming (HLS)
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‣ Frontend ‣ Node.js v4 ‣ TypeScript1.6 ‣ React / Flux ‣ SPA + SSR ‣ iOS ‣ Swift2.0 ‣ Android ‣ Kotlin
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‣ Serverside & Infrastructure ‣ Amazon Web Services (AWS) ‣ Go1.5 ‣ Docker1.9.0 ‣ Microservices ‣ RESTful API (goji)
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‣ Tools ‣ Slack + Hubot (ChatOps) ‣ Github Enterprise ‣ CircleCI (Enterprise) ‣ Crashlytics ‣ JIRA Agile ‣ Mackerel ‣ ࡳଋ
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Architecture & ECS
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Architecture ‣ ࢥ ‣ جຊํ ‣ Task Definitionͷߏ ‣ ClusterͱServiceͷѻ͍
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ࢦ͍ͯ͠Δ͜ͱ ‣ ۃྗϝϯςΛೖΕͳ͍ ‣ θϩμϯλΠϜϦϦʔε → Blue Green Deployment ‣ Πϯϑϥ͍ࣺͯͯೖΕସ͑Δ → Immutable Infrastructure ‣ ૉૣ͘සൟͳϦϦʔε ‣ γεςϜݶΓͳ͘ૄ݁߹ͷํ͕ྑ͍ → Microservices ‣ ίϯςφͩ → Docker
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Microservices ‣ ಛఆͷ։ൃݴޠʹґଘ͠ͳ͍ʢ͖Δ͠ʣ ‣ ௨৴ϓϩτίϧ ‣ RESTFul API (HTTP) ‣ ͦͷ͏ͪgRPC(HTTP2)͍ͨ͠ ‣ αʔϏεͷཻΛఆΊΔͷΓ͍͠ ‣ γεςϜతͳυϝΠϯྖҬͰ͚ΔͷҰͭͷࢦඪ ‣ ޙ͔ΒผαʔϏεͱͯ͠Γམͱ͢OK
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Infrastructure ‣ AWS + EC2 Container Service(ECS)Λ࠾༻ ‣ ͪΐ͏Ͳٕज़ݕূதʹECSͷ౦ژϦʔδϣϯ͕དྷͨ ‣ ࠷ݶͷίϯςφߏཧͱεέδϡʔϦϯά͕Ͱ͖Εे ‣ ECSҎ֎ʹ͍͍ͨͷ͕͋ͬͨ͠ ‣ Lambda ‣ RDS Aurora
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جຊํ ‣ MicroservicesຖͰίϯςφΛߏ͢ΔTask DefinitionΛͭ͘Δ ‣ 1ECS Clusterʹ͖ͭ1Service ‣ 1Clusterʹ1ͭͷAutoScaling Group ‣ ಈը৴αʔόಛघͳͷͰྫ֎ ‣ Clusterؒ௨৴Internal ELBΛར༻
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Task Definitionͷํ ‣ ϩάͷసૹʹtd-agentΛ͏ ‣ ֤ίϯςφϩάϗετʹϚϯτ ‣ ϗετʹϚϯτ͞ΕͨϩάΛtd-agentͰసૹ ‣ logging driver·ͩಋೖͯ͠ͳ͍ ‣ Internal Service(API)Ͱ͋ͬͯجຊNginxΛ௨͢ ‣ ΞΫηεϩάग़͢ͷָͩ͠
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Task Definition(Service API)
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Task Definition(WEB+API)
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Task Definition(Job)
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Task Definition(movie)
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جຊతʹ͜ΕΒͷΈ߹Θͤ
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cluster = serviceͷσϝϦοτ ‣ ϦιʔεޮతʹϕετͰͳ͍ ‣ Cluster : Service = 1:N ʹൺΔͱ ‣ Πϯελϯε૿͑Δʹ͋Δ ‣ ։ൃڥͰt2.microΛ༗ޮ׆༻͍ͯ͠Δ ‣ nanoΠϯελϯεщ ƅшƅщ)ŜŹŖƃ
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cluster = service ʹͯ͠Δཧ༝ ‣ ࢹ֮తʹΘ͔Γ͍͢ʢϏΪφʔϑϨϯυϦʔʣ ‣ Service୯ҐͰIAM roleΛઃఆͰ͖ͳ͍ ‣ IAM RoleͰݫີͳݖݶ੍ޚΛ͢ΔʹΓͳ͍ ‣ Service୯ҐͰͷSecurity GroupʹະରԠ ‣ ͨͩ͠ɺELBલఏʹͯ͠͠·͑ղܾͰ͖Δ
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Blue Green Deployment
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2AutoScalingύλʔϯ ‣ BlueɺGreenܥ౷ͷClusterΛ࡞Δ ‣ ͦΕͧΕ͕AutoScalingGroupʹଐ͢Δ ‣ api1-blue, api1-green Έ͍ͨͳ ‣ AutoScalingGroup୯ҐͰELBΛΓସ͑Δ
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2AutoScalingͷಛ ‣ ͱͯ҆શ ‣ DeployޙͷϩʔϧόοΫ༰қ ‣ DeployલͷStandbyܥ౷ͷΥʔϜΞοϓඞཁ ‣ 10લʹ͓͖͍ͬͯͨ ‣ ίετͷέΞ͕ॏཁ ‣ DeployޙɺStandbyʹͳͬͨܥ౷Λམͱ͢
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Diet Docker Image
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Πϝʔδখ͍͞΄Ͳྑ͍ ‣ docker build࣌ؒˣ ‣ CI࣌ؒˣ ‣ Registry͔ΒͷΠϝʔδμϯϩʔυ࣌ؒˣ ‣ AutoScaleͰ࡞͞ΕͨΠϯελϯε͕αʔϏεΠϯ͢Δ ·Ͱͷ࣌ؒ↓
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docker hub ‣ hub.docker.com ‣ ଟ͘ͷެࣜΠϝʔδ ‣ αΠζΛ͗མͱͨ͠ͷ͔ΓͰͳ͍ ‣ 1GB͑ΔΠϝʔδσϒ
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ෆཁͳͷআ͢Δ ‣ ෆཁͳϑΝΠϧΛݟམͱ͞ͳ͍ ‣ ϏϧυͷͨΊʹੜͨ͡࢈ۀഇغΛআ ‣ npm cache clear ‣ rm -rf ~/.grade ‣ apt-get clean ‣ Data VolumeΛ͏ʢϙʔλϏϦςΟམͪΔʣ
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RUNͷճΛݮΒ͢ ‣ RUNͷ͚ͩΠϝʔδͷϨΠϠʔ͕ॏͳΓɺΠ ϝʔδ༰ྔ૿͑Δ ‣ && ͰνΣΠϯͯ͠ɺRUNͷճΛݮΒ͢ ‣ ͍docker buildͷ߹ɺ్தͰࣦഊ͢ΔͱRUN ͷ಄͔ΒΓͳ͓͠ͳͷͰফ͢Δ
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RUNͷճΛݮΒ͢ FROM ubuntu:15.10 RUN apt-get update RUN apt-get install -y curl RUN apt-get apt-get clean FROM ubuntu:15.10 RUN apt-get update && \ apt-get install -y curl && \ apt-get apt-get clean
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ܰྔΠϝʔδΛ͏ ‣ ͗མͱ͞ΕͨܰྔΠϝʔδΛ͏ ‣ ࠷ۙΦϑΟγϟϧͰslimΠϝʔδ͕͋Δͷ͋Δ ‣ e.g. Node, Go ‣ busyboxઈ͍ܰ
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‣ ࠷ۙܰྔΠϝʔδ(slim)༻ҙ͞ ΕͯΔ ‣ Docker HubΛීஈ͔Β८ճ͓ͯ͠ ͜͏
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‣ ٻΊΒΕΔϙʔλϏϦςΟˢ ‣ GoͰ͋Ε࣮ߦϑΝΠϧΛࡌͤΔ ͚ͩ ‣ busyboxͷதͰϏϧυΩπΠ ʢқߴʣ
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ݮྔʹΑΔࢥΘ͵ฐ ‣ x509: failed to load system roots and no roots provided ‣ ίϯςφ͔ΒHTTPS௨৴͕Ͱ͖ͳ͘ͳΔ ‣ apt-get install -y ca-certificates Ͱղܾ ‣ ֎෦πʔϧͷґଘʢΞϓϦ͔ΒͷΩοΫʣ
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ϕʔεΠϝʔδΛͭ͘Δ ‣ apt updateɺapt-get install ͏Μ͵ΜΛऴΘΒͤͨ ͷ ‣ ຖͬͯͨΒCIͷ͕࣌ؒ૿͑Δʢdocker buildͷ ҆ఆʣ ‣ ΞϓϦଆͷDockerfileͰຊ࣭ͷॲཧʹઐ೦ͤ͞Δ
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Local Development
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ϩʔΧϧ։ൃͰ͏ͷ ‣ docker-machine + VirtualBox ‣ docker-compose
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docker-machine ‣ VirtualBox, AWS, Azure, Digital Ocean্ʹ DockerϗετΛߏங͢Δ ‣ ͔͋ͨϩʔΧϧ্ʹDockerڥ͕͋Δ͔ͷΑ͏ ʹDockerͷૢ࡞͕Ͱ͖Δ
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docker-machine ‣ docker-machine + VirtualBoxΛબ ‣ Vagrantࣺͯͨ ‣ DockerʹൺΔͱ͍ࣺͯίετˢ ‣ ΞϓϦέʔγϣϯɺϛυϧΣΞؚΊ͍ͯͭͰϩʔΧϧͰ֬ ೝͰ͖ΔΑ͏ʹ ‣ VirtualBoxͷϙʔτϑΥϫʔυར༻
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ϚγϯϦιʔεඞཁ ‣ ϩʔΧϧϑϧDockerͩͱɺٻΊΒΕΔϚγϯεϖο Ϋߴ͘ͳΔ ‣ 16GBͳ͍ͱ݁ߏਏ͍ ‣ αʔόαΠυΤϯδχΞʹඞਢ ‣ ίϯςφ͍ͬͺ্͍͛ͯɺշదʹTwitter͢Δͷॏཁ
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׳Εා͍
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docker-compose ‣ Docker ToolboxͷҰ෦ʢݩʑfigʣ ‣ Dockerίϯςφ܈ͷߏΛYAMLͰཧ ‣ docker-compose up -d Ͱىಈ
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σʔλετΞDocker ‣ ϩʔΧϧͰσʔλετΞDockerίϯςφར༻ ‣ library/mysql, library/redis ‣ VagrantΑΓߴͰؾܰʹεΫϥοϓϏϧυ
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DBϚΠάϨʔγϣϯॏཁ ‣ ڥἧͬͯσʔλෆඋ͋Δͱҙຯ͕ແ͍ ‣ FRESH! Ͱ goose ‣ https://bitbucket.org/liamstask/goose/ ‣ SQL͚ͩ͡Όͳ͘ɺGoͰϚΠάϨʔγϣϯॻ͚Δ
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ecs-formation
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ecs-formation ‣ https://github.com/stormcat24/ecs-formation ‣ docker-composeͷΑ͏ʹɺYAMLϑΝΠϧͰίϯςφ ͷߏΛཧ͢Δ ‣ ࣌ecs-cliͱ͔ແ͔ͬͨͷͰ࡞ͬͨ ‣ aws-sdk-goར༻
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ecs-formation features ‣ Task Definitionsͷߋ৽ ‣ Clusterʹஔ͢ΔServiceͷߋ৽ ‣ Blue-Green Deploymentͷ࣮ߦ
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Task Definitions (task/jawsug-api.yml) nginx: image: registry.jawsug.local:5000/jawsug/nginx:latest ports: - 80:80 environment: SERVER_NAME: jawsug.example.com volumes: - /var/log/container/nginx:/var/log/nginx links: - api memory: 512 cpu_units: 512 essential: true
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Services on cluster (service/jawsug-cluster.yml) api-service: task_definition: jawsug-api desired_count: 1
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Blue Green Deployment (bluegreen/jawsug-cluster.yml) blue: cluster: jawsug-cluster-blue service: api-service autoscaling_group: jawsug-cluster-blue green: cluster: jawsug-cluster-green service: api-service autoscaling_group: jawsug-cluster-green primary_elb: jawsug-api-primary standby_elb: jawsug-api-standby
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ecs-formationͷӡ༻ ‣ ecs-formationઐ༻ͷϦϙδτϦΛͭ͘Δ ‣ Task, Service, BlueGreenͷఆٛͷYAML ‣ masterʹϚʔδ͞ΕΔͱTask Definitionߋ৽ ‣ service updateHubot -> CircleCI͔Β
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Update Task Definitions push merge PR webhook test update task notification webhook ecs-formation repository Amazon ECS ※࠷৽ͷTask Definitionͷόʔδϣϯʹߋ৽͞ΕΔ
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Update Service(Deploy) webhook test update service deploy webhook ecs-formation repository Amazon ECS ※࠷৽ͷTask DefinitionͷόʔδϣϯΛར༻͠ɺServiceΛߋ৽͢Δ push deploy branch notification
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Others
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Others ‣ AMI ‣ Private Registry ‣ CircleCI + Docker ‣ Terraform ‣ Mackerel
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EC2-Optimized AMI ‣ Current version 2015.09.b ‣ Amazon Linuxϕʔε ‣ Docker + ECS Agent ‣ ศར͚ͩͲࣾͰ໘ݟͯ͘Εͳͦ͞͏ͩͬͨ
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Ubuntu ‣ FRESH!UbuntuΛ࠾༻ ‣ DockerͷΠϯετʔϧ → ηϧϑαʔϏε ‣ ECS AgentͷಋೖͱαʔϏεԽʢUpstartʣ → ηϧϑαʔϏε ‣ ੵۃతͳDockerͷΞοϓσʔτ → ਓப ‣ apt-get install docker-engine=1.9.0-0~trusty
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Private Registry ‣ S3ΛόοΫΤϯυʹɺPrivate RegistryΛ࡞ΕΔ ‣ registry:2.2.0 ‣ konradkleine/docker-registry-frontend:v2
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CircleCI + Docker ‣ ΞϓϦέʔγϣϯ1ϦϙδτϦʹ1Dockerfile ‣ nginxtd-agentͷΑ͏ͳϛυϧΣΞܥผ్ઐ ༻ϦϙδτϦ ‣ CircleCIͰmasterϏϧυ࣌ʹdocker build + push
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Build Docker Image push merge PR webhook test docker build private registry docker push notification webhook
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Terraform ‣ ΠϯϑϥߏஙͷͨΊͷΦʔέετϨʔγϣϯπʔ ϧ ‣ ଟ࠼ͳProviderΛఏڙ ‣ AWSͰͷΠϯϑϥߏஙʹར༻
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Terraformཧͯ͠Δͷ ‣ EC2 ‣ Security Group ‣ Route53 (ΠϯλʔφϧυϝΠϯͷΈʣ ‣ ECS Cluster ‣ AutoScaling Groupͷىಈߏ
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Terraformཧͷߟ͑ํ ‣ ӡ༻ʹΑͬͯঢ়ଶ͕มΘΔͷཧʹ͔ͳ͍ ‣ ELB ‣ AutoScaling Group ‣ εΫϥοϓʴϏϧυʹ͕͔͔࣌ؒΔͷ ‣ RDS ‣ ElastiCache ‣ EC2CloudinitͰߏ͢Δ ‣ Provisioning͠ͳ͍ɻ͍ࣺͯ
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ΫϦςΟΧϧͳͷආ͚Δ ‣ Route53 ‣ Ͳ͔ͬͷϓϩδΣΫτͰɺϨϏϡʔ͕ܗ֚ԽˠηϧϑϚ ˠେࣄނ͕͋ͬͨΒ͍͠ ‣ roadworkerઐ༻ϦϙδτϦ༻ҙ͠ɺݫॏʹΫϩεϨ Ϗϡʔ͢Δ ‣ IAM
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Terraformͷӡ༻ ‣ tfϑΝΠϧGHE্Ͱཧ ‣ tfstateS3্ʹอ࣋ ‣ શͯΛҰͭͷtfstateͰཧ͠ͳ͍ ‣ dev/shared/staging/production/load ͘Β͍ ‣ CircleCI ‣ PRͰ terraform plan ͷࠩνΣοΫ ‣ planͰݫີͳνΣοΫͰ͖ͳ͍ͷͰͦΕͳΓʹ৺؟ඞཁ ‣ hubot -> CircleCIͰ terraform apply
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Mackerel ‣ ࢹجຊతʹMackerel ‣ ݟ͍͢ɺ͖Ε͍ ‣ ࠷ۙDockerͷϝτϦΫε͕औΕΔΑ͏ʹͳͬͨ
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Mackerel
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Mackerel
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Mackerel ˡίϯςφ୯Ґͷ ϝτϦΫε
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࠷ޙʹॴײ ‣ ECSͪΖΜपลπʔϧἧ͖ͬͯͯɺDocker ຊ൪ӡ༻ͷෑډ͕େ͖͘Լ͕͍ͬͯΔ ‣ ΜͰΔͳΒͱΓ͋͑ͣࢼͯ͠ΈΑʁ
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