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ECS Fargate spotを活用した負荷試験ツールを3年間運用してわかったこと
NAVITIME JAPAN
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November 29, 2022
Technology
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ECS Fargate spotを活用した負荷試験ツールを3年間運用してわかったこと
2022.11.30 Kubernetes/Fargateの導入・活用事例-カカクコム×CROOZ×ナビタイム-【TECHHILLS】
https://techplay.jp/event/877265
NAVITIME JAPAN
PRO
November 29, 2022
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Transcript
ECS Fargate spotΛ׆༻ͨ͠ෛՙࢼݧπʔϧΛ 3ؒӡ༻͔ͯͬͨ͜͠ͱ 2022 / 11 / 30
ࣗݾհ לౡ ࠀӳ େग़ झຯ Γɺΰϧϑɺϥϯχϯάɺٿ ୲ SRE PJ Manager
։ൃɺӡ༻ɺϚωʔδϝϯτ …etc.
໊ࣾ: גࣜձࣾφϏλΠϜδϟύϯ ࣾһ: 500ਓ ຊࣾ: ౦ژߓ۠ೆ੨ࢁ ઃཱ: 2000 ձࣾ֓ཁ φϏλΠϜδϟύϯͷೆ੨ࢁΦϑΟε
ܦӦཧ೦ ܦ࿏୳ࡧΤϯδϯͷٕज़Ͱ ੈքͷ࢈ۀʹไ͢Δ
ࣄۀྖҬ - B to C ϝσΟΞࣄۀ ૯߹φϏαʔϏε ϚʔέςΟϯάࢧԉ τϥϕϧࣄۀ ཱྀߦαʔϏε
؍ޫϚʔέςΟϯάࢧԉ υϥΠϒࣄۀ ࣗಈं͚αʔϏε πʔϦϯάࣄۀ ࣗసं/ΦʔτόΠ͚αʔϏε ๏ਓ/࣏ࣗମ͚αʔϏε όεɾΥʔΩϯ άࣄۀ όεɾ݈߁αʔϏε ΩϟϦΞڠۀࣄۀ ϏδωεφϏλΠϜࣄۀ େܕं͚ ಈଶཧ
ࣄۀྖҬ - B to B Maasࣄۀ MaasΞϓϦ͚ APIఏڙ ίϯςϯππʔϦζϜͷاըɾӡӦ Ҭ࿈ܞࣄۀ
࣏ࣗମ͚αʔϏε։ൃࢧԉ ؍ޫ٬༠கͷίϯαϧςΟϯά CASEࣄۀ ࣗಈं͚αʔϏεͷ։ൃࢧԉ ަ௨σʔλࣄۀ ަ௨ɾ؍ޫσʔλͷఏڙɾੳ ϩέʔγϣϯϚʔ έςΟϯάࣄۀ ళฮσʔλཧΫϥυαʔϏε ళฮϚʔέςΟϯάࢧԉ ιϦϡʔγϣϯࣄۀ ެڞަ௨ࣄۀ ަ௨ࣄۀऀ͚ιϦϡʔγϣϯ ๏ਓ͚API,SDK, πʔϧͷఏڙ
৽ػೳɾαʔϏε ୡྃ·Ͱͷॴཁ࣌ؒΛॖͨ͠८ճܦ࿏ݕࡧ ࠓͷॵͷਏ͔͞Βੜ·Εͨػೳ &7ϢʔβʔͷࠔΓ͝ͱʮॆిʯʹϑΥʔΧε Ҡಈͷ՝ղܾʮ/"7*5*.&GPS#BCZʯ
׆༻͍ͯ͠Δίϯςφؔ࿈ٕज़ɾσϓϩΠख๏ɾ՝ ECS on fargate ECS on ec2 EKS on self
managed nodes ECS on fargate Λ3ؒར༻ͯ͠Ͳ͏͔ͩͬͨʁ ຊɺ͓͢Δ͜ͱ
શͯΦϯϓϨͰӡ༻ NAVITIME Πϯϑϥͷྺ࢙ 35 AWSΛࢼݧར༻ ΫϥυҠߦ։࢝ 2001~ 2015ʙ 2016ʙ
ར༻͍ͯ͠ΔΫϥυϕϯλʔ
ར༻ׂ߹͕Ұ൪େ͖͍ͷAWS ୯Ұͷϕϯμʔʹݶఆͤͣɺ֤ϕϯμʔ ͷྑ͍෦Λ༗ޮʹ׆༻
ίϯςφؔ࿈ٕज़ ར༻ࣄྫհ
ECS fargate ࣄྫհ
AWS͕ఏڙ͍ͯ͠Δ ίϯςφΦʔέετϨʔγϣϯ αʔϏε ίϯςφΛՔಇͤ͞Δ Nodeͷཧ͕ෆཁ ECS fargate ͱʁ
ECS fargate ͷར༻ࣄྫ Locust (ෛՙࢼݧπʔϧ) ͰFargateΛ׆༻ 140ݸͷServiceʹର͢ΔෛՙࢼݧͰར༻
γφϦΦΛPythonͰ࣮Ͱ͖Δʢ֦ுੑ͕ߴ͍ʣ Master - Slave ߏͰେنͳෛՙࢼݧΛߦ͏ࣄ͕Մೳ ϦΞϧλΠϜʹෛՙࢼݧ݁ՌΛϒϥβ্Ͱ֬ೝͰ͖Δ Locustͷಛ
શମߏ slave ECS Service: Master ECS Service: Slave slave slave
master Access log ܭଌର Service Discovery
Locust - masterͷׂ slave ECS Service: Master ECS Service: Slave
slave slave master Access log ܭଌର Service Discovery ࢼݧ݁Ռ֬ೝ༻ WebϖʔδΛϦΞϧλΠϜʹՄࢹԽ slave ͔Β౷ܭใΛऩू masterͷׂ
slave ECS Service: Master ECS Service: Slave slave slave master
Access log ܭଌର Service Discovery ܭଌରαʔόʔʹ࣮ࡍʹϦΫΤετΛૹ৴͢Δ slaveͷׂ Locust - slaveͷׂ
ॲཧͷྲྀΕ ᶃ Start swarming Λԡ͢
slave ECS Service: Master ECS Service: Slave slave slave master
Access log ܭଌର Service Discovery ᶄ Locust ͷ֤slaveίϯςφෛՙࢼݧͰར ༻͢ΔϦΫΤετϦετΛs3͔Βऔಘ ॲཧͷྲྀΕ
slave ECS Service: Master ECS Service: Slave slave slave master
Access log ܭଌର Service Discovery ॲཧͷྲྀΕ ᶄ Locust ͷ֤slaveίϯςφܭଌରαʔ όʔʹϦΫΤετΛૹ৴ɻ Ϩεϙϯε݁ՌϦΞϧλΠϜʹMasterʹૹ ৴͞ΕΔ
slave ECS Service: Master ECS Service: Slave slave slave master
Access log ܭଌର Service Discovery PythonͰ࣮Ͱ͖ΔͷͰ֦ுੑ͕ߴ͍ S3͔ΒࣄલʹςετϦΫΤετΛऔಘ ϦΫΤετΛվ᜵ /v1Λ /v2ʹมߋ ϦΫΤετϔομʔΛՃ ϦΫΤετૹ৴ִؒΛௐ ྫ
AWS CLI Λར༻͠CloudformationͷελοΫΛհͯ͠શͯͷ AWSϦιʔεΛ࡞ ࣾπʔϧͳͷͰ Blue/GreenσϓϩΠߦ͍ͬͯ·ͤΜ ࡞ or আͷΈ ECS
FargateڥͷσϓϩΠ
ECS fargate ͷσϓϩΠ 1. ઃఆϑΝΠϧΛ࡞ ͠ɺGitʹPush ECSClusterName: locust VpcId: vpc-xxxxxxxx
ECSSecurityGroupId: sg-xxxxxxx ECSTaskExecutionRole: arn:aws:iam::333333333:role/EC2_allow_locust ECSSubnetId1: subnet-22222222222 ECSSubnetId2: subnet-44444444444 ECSSubnetId3: subnet-11111111111 ECSImageName: hoge:1.2.2 TargetUrl: https://hoge.jp TargetService: xxx-truckapp-stg ApacheLogUrl: s3://hoge/archive/latest/latest/*.gz RequestUrlPattern: /v1/[0-9]{8}/(route) RequestUrlExcludePattern: '' RequestUrlReplace: '' MasquaradeUseragent: false RequestToEveryPath: false SetScaleInAlarm: false AddNLBToLocustMaster: false LocustMaster: ECSTaskCPUUnit: 512 ECSTaskMemory: 1024 LocustOpts: --loglevel=ERROR --csv=output MasterNamespace: hoge.jp PrivateNamespaceId: ns-xxxxx LocustSlave: ECSTaskCPUUnit: 256 ECSTaskMemory: 512 ECSTaskDesiredCount: 1 LocustOpts: --loglevel=ERROR ྫ ෛՙࢼݧΛߦ͏։ൃऀ
ECS fargate ͷσϓϩΠ 2. Jenkins δϣϒΛ ͬͯ ECS Fargate ͷ
ServiceΛσϓϩΠ ෛՙࢼݧΛߦ͏։ൃऀ αʔϏεA ༻ڥ αʔϏεB ༻ڥ αʔϏεC ༻ڥ
ECS fargate ͷσϓϩΠ 3. ECS TaskىಈޙɺServiceຖʹ͍ ग़͞ΕΔRoute53υϝΠϯʹΞΫηε ͠ɺෛՙࢼݧΛ։࢝ ෛՙࢼݧΛߦ͏։ൃऀ
ECS FargateΛ࠾༻ͨ͠ܦҢ ӡ༻ίετ ར༻ϓϩμΫτ͕ଟ͍ࣾπʔϧͳͷͰɺॳظ ߏஙɾӡ༻ίετΛ͔͚ͨ͘ͳ͍
ECS FargateΛ࠾༻ͨ͠ܦҢ Lambda > ECS Fargate > ECS on ec2
ͷॱͰΞʔΩςΫ νϟΛݕ౼ ֶशίετ͕ൺֱత͍ (ECS on ec2 ɺEKSͱൺͯ)
ίετݮͷҝͷ ECS fargate spotΛ׆༻ • ࠷େ70% ׂҾ͞ΕΔ • ࠓͷͱ͜ΖҰൃੜ͍ͯ͠·ͤΜ Taskͷࣗಈఀࢭ
• ෛՙࢼݧΛ࣮ߦ͍ͯ͠ͳ͍TaskΛݕ͠ɺࣗ ಈͰআ
ECS on ec2 ࣄྫհ
NAVITIME NAVITIME ΧʔφϏλΠϜ ࣗసंNAVITIME Japan Travel by NAVITIME τϥοΫΧʔφϏ πʔϦϯάαϙʔλʔ
Ͱӡ༻͍ͯ͠ΔϓϩμΫτͷྫ ECS on ec2 ALKOO by NAVITIME
NAVITIME NAVITIME ΧʔφϏλΠϜ ࣗసंNAVITIME Japan Travel by NAVITIME τϥοΫΧʔφϏ πʔϦϯάαϙʔλʔ
Ͱӡ༻͍ͯ͠ΔϓϩμΫτͷྫ ECS on ec2 ECS on ec2ࣾͰҰ൪ଟ͘ར༻͞Ε͍ͯΔ ALKOO by NAVITIME
ΠϯϑϥίετΛۃྗԼ͍͛ͨ Fargate͕ϦϦʔε͞Εͨ࣌ɺطʹAutoscalingGroupͱECS Λ ࿈ಈͤ͞Δ ϊϋ͕ࣾʹ͋ͬͨ Ұ෦APIͰNAVITIMEͷੑೳཁ݅Λຬͨͤͳ͍Մೳੑ͕͋ͬͨ ECS on ec2 ΛϝΠϯͰར༻͍ͯ͠Δཧ༝
JenkinsδϣϒͰσϓϩΠΛ࣮ࢪ ᶃ ίϯςφ࡞ & ECR ᶄ Cloudformation ΛͬͯCanaryϦϦʔε Deployϑϩʔ
Deploy - Jenkins ͰίϯςφΛϏϧυ Build & Push ECR
CloudformationͰશϦιʔεΛ࡞ Availability Zone A Availability Zone C Availability Zone D
Service Task Task ֤αʔϏεͷAWSڥ ECS ALB ECR
CloudformationͰશϦιʔεΛ࡞ Availability Zone A Availability Zone C Availability Zone D
֤αʔϏεͷAWSڥ αʔϏεAlert ϩάσʔλੵ
Availability Zone A Availability Zone A Availability Zone A CanaryϦϦʔεͷྲྀΕ
֤αʔϏεͷAWSڥ Blue Service 100 %
CanaryϦϦʔεͷྲྀΕ ֤αʔϏεͷAWSڥ Blue Service Availability Zone A 100 % Availability
Zone A Availability Zone A 0 % Green Service
Canary - ALBͷՃॏϧʔςΟϯάͰGreenʹϦΫΤετΛྲྀ͢ ֤αʔϏεͷAWSڥ Blue Service Availability Zone A 0
% Availability Zone A Availability Zone A 100 % Green Service
CanaryϦϦʔεͷྲྀΕ ֤αʔϏεͷAWSڥ Availability Zone A Availability Zone A Availability Zone
A 100 % Green Service
CodeDeploy ͍ͬͯ·ͤΜ ཧ༝ ECS Service ͱ AutoscalingGroupͷ࿈ಈઃఆΛߦ͏ඞཁ͕ ͋ͬͨҝ CanaryϦϦʔε ݱࡏCapacity
Providerػೳ͕ఏڙ͞Ε͍ͯΔҝɺCodeDeployͰ ཁ݅ຬͨͤΔ͔͠Ε·ͤΜ (ະݕূ)
ΠϯϑϥνʔϜ͕࡞ͨ͠ڞ௨εΫϦϓτΛ֤ϓϩμΫτͷσ ϓϩΠδϣϒͰར༻ (bash + aws-cli) CanaryϦϦʔε AutoscalingGroupɺECS Service࡞ ALBՃॏϧʔςΟϯάมߋ ڞ௨ϩδοΫ
ϩάసૹ༻ fl uentdίϯςφ͔ΒߴසͰs3ʹϩάσʔλ͕Put͞ Ε͍ͯͨࣄʹΑΓɺs3ྉ͕ۚߴֹ ʹͳ͍ͬͯͨ ӡ༻࣌ʹൃੜͨ͠՝ fl uentdͷ fl ush_interval
ͷΛେ͖ͳʹมߋ ରॲ
Debugϩά͕ग़ྗ͞ΕΔঢ়ଶͷApplicationʹରͯ࣌ؒ͠ෛՙ ࢼݧΛߦͬͨࣄͰCloudwatchϩάͷྉ͕ۚߴֹʹͳͬͨ ӡ༻࣌ʹൃੜͨ͠՝ ෛՙࢼݧ࣮ࢪ࣌ʹΞϓϦέʔγϣϯͷLoggerઃఆ ঢ়گΛνΣοΫ ରॲ
Serviceؒ௨৴ͰύϒϦοΫͳALBΛར༻͍ͯͨ͠ɺAPIϨεϙ ϯε͕ѹॖͰ͖͍ͯͳ͔ͬͨࣄʹΑΓɺDataTransfer-Regional- Byte ͷྉ͕ۚߴֹʹͳ͍ͬͯͨ ӡ༻࣌ʹൃੜͨ͠՝ Internal ALBʹมߋ͢Δ APIϨεϙϯεΛѹॖ͢Δ ରॲ
HealthyHostCount͕0ͷTargetGroupʹϦΫΤετ͕ϧʔςΟϯ ά͞ΕΔ ӡ༻࣌ʹൃੜͨ͠՝ ՃॏઃఆมߋલʹTargetGroupͷHealthyHostCountΛ νΣοΫ͢ΔΑ͏ʹεΫϦϓτΛվम ରॲ
EKS on self managed nodes ࣄྫհ
શจݕࡧAPI API: 30ݸɺΠϯελϯε: 100 Jenkins Πϯελϯε 33ʙ https://note.com/navitime_tech/n/nc663cc1e866e EKS Ͱӡ༻͍ͯ͠ΔService
ArgoCD Λར༻ ArgoCDͱʁ Kubernetes Ϋϥελʹରͯ͠GitopsʹΑΔܧଓతσϦόϦʔ Λߦ͏πʔϧ EKS Cluster ͷσϓϩΠ
Argo events Argo workflow Trigger ᶄ ϦϙδτϦߋ৽ ᶃ Webhook ϦΫΤετ
ఆظfetch Blue Service Green Service Argo rollous ᶅ Sync (Deploy) શจݕࡧAPI ͷσϓϩΠ - શମ૾
Blue/GreenɺCanaryϦϦʔεΛαϙʔτ͍ͯ͠ΔKubernetesί ϯτϩʔϥ ςετέʔεɺࣗಈϩʔϧόοΫ͕؆୯ʹઃఆͰ͖Δ Argo rolloutsͱ?
Blue/GreenσϓϩΠޙʹ 2xxͷׂ߹͕95%ΛԼճͬͨɺ͘͠ ϩʔυόϥϯαʹαʔϏε͕ଓ͞Ε͍ͯͳ͍߹ʹࣗಈͰ ϩʔϧόοΫΛ࣮ߦ Argo rollouts - ྫ
Argo rollouts - BlueGreenσϓϩΠͷྲྀΕ ͜Ε͔ΒαʔϏεΠϯ͢Δ৽͍͠ίϯςφ αʔϏε͔Βࢀর͞Ε͍ͯΔίϯςφ
Argo rollouts - BlueGreenσϓϩΠͷྲྀΕ ͜Ε͔ΒαʔϏεΠϯ͢Δ৽͍͠ίϯςφ αʔϏε͔Βࢀর͞Ε͍ͯΔίϯςφ ৽͍͠ίϯςφΛαʔϏεΠϯͤ͞Δલʹ ࣄલʹςετϦΫΤετΛૹ৴
Argo rollouts - BlueGreenσϓϩΠͷྲྀΕ ৽͍͠ίϯςφ͕όϥϯαʹͭͳ͕Δ چίϯςφ͕όϥϯα͔Β֎ΕΔ ςετϦΫΤετૹ৴Ͱͳ͍ࣄΛ֬ೝͨ͠Βچίϯςφ ͔Β৽ίϯςφʹϧʔςΟϯάઌΛมߋ
Argo rollouts - BlueGreenσϓϩΠͷྲྀΕ ྫ͑ɺ#MVFɾ(SFFOΓସ͑ޙʹ৽ίϯςφͰޭʢYYϦΫΤετͷׂ߹ʣ͕ ҰఆͷᮢΛԼճͬͨ͜ͱΛݕ
Argo rollouts - BlueGreenσϓϩΠͷྲྀΕ چίϯςφ چίϯςφʹϧʔςΟϯάઌ͕มߋ͞ΕɺσϓϩΠεςʔλε͕ %FHSBEFEͷঢ়ଶͱͳΔ ৽ίϯςφ
GitϦϙδτϦʹPushͨ͠ΒσϓϩΠ͕Δҝɺͷ͋Δ ϓϩάϥϜ͕ຊ൪ڥʹ؆୯ʹ্͕ͬͯ͠·͏ Gitopsӡ༻࣌ͷ ManifestΛຊ൪ө͢Δલʹςετ͢Δඞཁ͕͋Δ
git push ͢Δલʹ conftest ͰςετΛ࣮ߦ kubernetesΫϥελʹө͞ΕΔલʹGatekeeperͰςετΛ࣮ߦ 2छྨͷManifestςετΛ࣮ࢪ
ຊ൪͚Ingress Ϧιʔεʹݕূ͖υϝΠϯ͕ઃఆ͞Ε͍ͯͳ͍͔ʁ ຊ൪͚Ingress Ϧιʔεʹݕূ༻ίϯςφ͕ઃఆ͞Ε͍ͯͳ͍͔ʁ Latestλάͷίϯςφ͕ࢦఆ͞Ε͍ͯͳ͍͔ʁ HPAઃఆద͔ʁ ςετέʔεͷྫ
EKSόʔδϣϯΞοϓʹ͕͔͔࣌ؒΔ ӡ༻࣌ʹൃੜͨ͠՝ argocd ͰσϓϩΠ͢Δํࣜʹ͢ΔࣄͰ͕࣌ؒॖ ɹ(ҎલkubectlͰmanifestΛapplyͯ͠·ͨ͠ʣ ରॲ
EKSόʔδϣϯΞοϓʹ͕͔͔࣌ؒΔ ӡ༻࣌ʹൃੜͨ͠՝ argocd ͰσϓϩΠ͢Δํࣜʹ͢ΔࣄͰ͕࣌ؒॖ ɹ(ҎલkubectlͰmanifestΛapplyͯ͠·ͨ͠ʣ ରॲ K8sόʔδϣϯΛ্͛ΔຖʹManifestΛมߋ͢Δ࡞ۀ͕΄΅ൃੜ͠·͢ɻ Addon Ҏ֎ͷίϯϙʔωϯτͷଟ͍ͷͰɺݕূɾຊ൪ͷEKSόʔδϣ ϯΞοϓʹࠓͰ
1ϲ݄ ͕͔͔͍࣌ؒͬͯΔঢ়گͰ͢ɻ
Node-pressure Eviction ͕ൃੜ͠ɺಛఆNode্ͰՔಇ͍ͯͨ͠ શPod͕ڧ੍Terminate͞ΕΔ ӡ༻࣌ʹൃੜͨ͠՝ resources > limits Ͱ্ݶΛࢦఆ kubelet_evictions
ϝτϦΫεΛGrafanaͰఆ؍ଌ ରॲ
Kubernetesٕज़ऀෆ ӡ༻࣌ʹൃੜ͍ͯ͠Δ՝
ECS fargateΛ3ؒӡ༻ͯ͠ Ͳ͏͔ͩͬͨʁ
݁ ӡ༻ɾֶशʹίετ͕͔͔Βͳ͍ͷ͕ΠΠʂ
ECS on EC2 ͱൺֱͯ͠ AutoscalingGroup࡞ͷख͕ؒল͚Δ ECS Optimized AMIͷఆظߋ৽ෆཁ εέʔϧઃఆ͕γϯϓϧ (Nodeͷεέʔϧઃఆ͕ෆཁ)
ֶशίετ͕গ͍͠ ϥϯχϯάίετߴ͍
EKS on self managed nodesͱൺֱͯ͠ EKS ΫϥελόʔδϣϯΞοϓ࡞ۀʹ͕͔͔࣌ؒΔ EKS (k8s)ͷֶशίετߴ͍ (
݁ߏߴ͍… ) EKS (k8s)֦ுੑ͕ߴ͘ɺ͍ΖΜͳϢʔεέʔεͰར༻ Ͱ͖Δ
͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠