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ΫϥυωΠςΟϒΛΔٕज़ ʙݰքṗͰͱΕͨਅୄʹΦʔΨχοΫΦΠϧΛఴ͑ͯʙ @pyama86
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ࢁԼ!QZBNB (.0ϖύϘٕज़ج൫νʔϜ γχΞɾϓϦϯγύϧ UFOTOBQPODPN QZBNBGVO TUOTKQ
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45/4 -JOVY/444FSWFS TUOTKQ
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45/4
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झຯ: ࠗ׆
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“Έͳ͞Μɺ CloudNativeͰ͔͢ʁ”
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ΫϥυωΠςΟϒΛ Δٕज़
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ࠓ͢͜ͱ 1.ϚωʔδυΫϥυʹ͍ͭͯ 2.KubernetesͱϚωʔδυΫϥυͷൺֱ 3.ίϯςφΦʔέετϨʔγϣϯγεςϜͷߏஙɺӡ༻ʹ͍ͭͯ 4.ͷੜͱ༮গظʹ͍͔ʹՄѪ͔͔ͬͨΛٞ
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–Johnny Appleseed “ΫϥυωΠςΟϒٕज़ɺύϒϦοΫΫϥυɺϓϥΠϕʔτΫϥ υɺϋΠϒϦουΫϥυͳͲͷۙతͰμΠφϛοΫͳڥʹ͓͍ ͯɺεέʔϥϒϧͳΞϓϦέʔγϣϯΛߏங͓Αͼ࣮ߦ͢ΔͨΊͷ ೳྗΛ৫ʹͨΒ͠·͢ɻ ͜ͷΞϓϩʔνͷදྫʹɺ ίϯςφɺαʔϏεϝογϡɺϚΠΫϩαʔϏεɺΠϛϡʔμϒϧΠ ϯϑϥετϥΫνϟɺ͓ΑͼએݴܕAPI͕͋Γ·͢ɻ ͜ΕΒͷख๏ʹΑΓɺճ෮ੑɺཧྗɺ͓ΑͼՄ؍ଌੑͷ͋Δૄ݁߹ γεςϜ͕࣮ݱ͠·͢ɻ ͜ΕΒΛݎ࿚ͳࣗಈԽͱΈ߹ΘͤΔ͜ͱͰɺ ΤϯδχΞΠϯύΫτͷ͋ΔมߋΛ࠷খݶͷ࿑ྗͰසൟ͔ͭ༧ଌͲ͓ Γʹߦ͏͜ͱ͕Ͱ͖·͢ɻ”
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ϨϯλϧαʔόͱΫϥυͷ͍͍ͱ͜ͲΓ ϩϦϙοϓʂϚωʔδυΫϥυ IUUQTNDMPMJQPQKQ
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ϩϦϙοϓʂϚωʔδυΫϥυͷັྗ • ؆୯ͳΦʔτεέʔϧ • ίϯςφςϯϓϨʔτΛݩʹɺ͙͢ʹ։ൃ͕࢝ΊΒΕΔ • ϨϯαόͷΑ͏ʹDB͕ଳ͠ɺ͞ΒʹΠϯϑϥͷӡ༻ ϩϦϙοϓʹ͓ͤ
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ϩϦϙοϓʂϚωʔδυΫϥυͷཁૉٕज़ • FastContainerΞʔΩςΫνϟ • haconiwa
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FastContainer Webαʔό্Ͱͷϓϩηε࣮ߦํࣜͷҰͭͰ͋ΔFastCGI͔Β @matsumotory ͕ணͨ͠ΞʔΩςΫνϟ FastCGI Client Web Server CGI CGI ϦΫΤετ ىಈཁٻ ىಈ ܭࢉ Ϩεϙϯε FastContainer Client Web Server Container Container ϦΫΤετ ىಈཁٻ ىಈ ܭࢉ Ϩεϙϯε
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haconiwa • @udzura ࡞ͷmrubyίϯςφϥϯλΠϜ • RubyͰίϯςφΛఆٛ • ίϯςφىಈͷ֤εςοϓҰఆִؒ͝ͱ ϑοΫϙΠϯτ͕͋Δ • CRIUରԠ
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ϚωʔδυΫϥυ proxy ngx_mruby compute ngx_mruby haconiwa backend coreapi CMD B compute ngx_mruby haconiwa compute ngx_mruby haconiwa ngx_mruby͕σΟεύονϟͱͳΓɺτϥϑΟοΫϧʔςΟϯ άίϯςφىಈΛߦ͏ NFS Storage
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ϚωʔδυΫϥυ proxy ngx_mruby compute ngx_mruby haconiwa backend coreapi Data Store compute ngx_mruby haconiwa compute ngx_mruby haconiwa ϦΫΤετ୯ҐͷΦʔτεέʔϧ NFS Storage Ϣʔβʔσʔλ ͯ͢ετϨʔδʹ͋Δ
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ϚωʔδυΫϥυ ʙίϯςφىಈʙ
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ϚωʔδυΫϥυ - ίϯςφىಈ CMDB $PSF"1* DPOUBJOFS TUBUVTSFBEZ IPTUDPNQVUF ίϯςφͷใ SFBEZػத DPNQVUF $MJFOU TUPSBHF DPNQVUF OGT OGT 8FCQSPYZ http://www.kaasan.info/archives/3733
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CMDB $PSF"1* DPOUBJOFS TUBUVTCPPUJOH IPTUDPNQVUF ίϯςφͷใ ίϯςφϨίʔυΛ ىಈத CPPUJOHىಈத DPNQVUF $MJFOU TUPSBHF DPNQVUF OGT OGT http://www.kaasan.info/archives/3733 8FCQSPYZ తͷίϯςφͷ*1͕ -*45&/ͯ͠ͳ͍ ϚωʔδυΫϥυ - ίϯςφىಈ ϦΫΤετܖػͰ ใऔಘ
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CMDB $PSF"1* DPOUBJOFS TUBUVTFOBCMFE IPTUDPNQVUF ίϯςφͷใ ίϯςφϨίʔυΛ Քಇத FOBCMFEՔಇத DPNQVUF $MJFOU TUPSBHF DPNQVUF OGT OGT http://www.kaasan.info/archives/3733 ίϯςφىಈ 8FCQSPYZ DPOUBJOFS ίϯςφͷ εςʔλεมߋ ϚωʔδυΫϥυ - ίϯςφىಈ
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CMDB $PSF"1* DPOUBJOFS TUBUVTFOBCMFE IPTUDPNQVUF ίϯςφͷใ DPNQVUF $MJFOU TUPSBHF DPNQVUF OGT OGT http://www.kaasan.info/archives/3733 8FCQSPYZ DPOUBJOFS ࣍ͷϦΫΤετطʹ ίϯςφىಈࡁΈͳͷͰϓϩΩγ ϚωʔδυΫϥυ - ίϯςφىಈ
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CMDB $PSF"1* DPOUBJOFS TUBUVTSFBEZ IPTUDPNQVUF ίϯςφͷใ DPNQVUF $MJFOU TUPSBHF DPNQVUF OGT OGT http://www.kaasan.info/archives/3733 8FCQSPYZ DPOUBJOFS ίϯςφͷण໋͕དྷͨΒ ίϯςφΛఀࢭ͢Δ ϚωʔδυΫϥυ - ίϯςφఀࢭ SFBEZػத ͳʹ͔ॲཧதͷ߹ॲཧ͕ ऴΘΔ·Ͱͭ
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ϚωʔδυΫϥυ ʙΦʔτεέʔϧʙ
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CMDB $PSF"1* DPOUBJOFS TUBUVTFOBCMFE IPTUDPNQVUF ίϯςφͷใ DPNQVUF $MJFOU TUPSBHF DPNQVUF OGT OGT http://www.kaasan.info/archives/3733 ʘෛՙ͍ʗ 8FCQSPYZ DPOUBJOFS ίϯςφՃཁٻ ϚωʔδυΫϥυ - Φʔτεέʔϧ DPOUBJOFS TUBUVTSFBEZ IPTUDPNQVUF ίϯςφใΛ Ճ
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CMDB $PSF"1* DPOUBJOFS TUBUVTFOBCMFE IPTUDPNQVUF ίϯςφͷใ DPNQVUF $MJFOU TUPSBHF DPNQVUF OGT OGT http://www.kaasan.info/archives/3733 8FCQSPYZ DPOUBJOFS ϦΫΤετܖػͰίϯςφىಈ ϚωʔδυΫϥυ - Φʔτεέʔϧ ίϯςφใΛ ༗ޮԽ DPOUBJOFS DPOUBJOFS TUBUVTFOBCMFE IPTUDPNQVUF
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ओཁίϯϙʔωϯτ
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OpenStack Baremetal
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ओཁίϯϙʔωϯτ - ngx_mruby NSVCZ@TTM@IBOETIBLF@IBOEMFS@DPEF TTMOHJOY44-OFX DFSUJpDBUF@EBUB'JMFSFBE QBUIUP\TTMTFSWFSOBNF^DSU LFZ@EBUB'JMFSFBE QBUIUP\TTMTFSWFSOBNF^LFZ TTMDFSUJpDBUF@EBUBDFSUJpDBUF@EBUB TTMDFSUJpDBUF@LFZ@EBUBLFZ@EBUB OHJOYͷ͋ΒΏΔΠϕϯτʹϑοΫͯ͠ɺNSVCZͷίʔυΛ࣮ߦ͠ɺ ϓϥΨϒϧʹτϥϑΟοΫίϯτϩʔϧग़དྷΔ
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ओཁίϯϙʔωϯτ - ngx_mruby • CoreAPIʹϦΫΤετΛ࣮ߦ͠ɺίϯςφϧʔςΟϯάɺίϯςφىಈΛ ߦ͏ • ϦΫΤετ୯ҐͰɺίϯςφʹϔϧενΣοΫΛߦ͏ • ϊϯϒϩοΩϯάʹใ͕औಘͰ͖ΔΑ͏ngx_mruby v2ʹͯඇಉظεϦʔ ϓɺαϒϦΫΤετΛ࣮ • HTTPL7ϓϩΩγɺͦΕҎ֎L4ϓϩΩγ
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ओཁίϯϙʔωϯτ - ngx_mruby SFRVFTU SFRVFTU SFRVFTU SVODPOUBJOFS SVODPOUBJOFS SVODPOUBJOFS SFTQPOTF SFTQPOTF SFTQPOTF XPSLFS XPSLFS͋ͨΓͷNSVCZ࣮ߦ ίϯςφىಈ Ͱ ඇಉظ*0͕ϒϩοΫ͞ΕΔ ίϯςφىಈ ͪ࣌ؒ
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ओཁίϯϙʔωϯτ - ngx_mruby /HJOY"TZODTMFFQΛར༻͠ɺίϯςφىಈͪ࣌ؒΛ ඇಉظʹ4MFFQ͢Δ SFRVFTU SFRVFTU NSVCZ SFTQPOTF SFTQPOTF 8PSLFS MPPQEP CSFBLJGDPOUBJOFSCPPU /HJOY"TZODTMFFQ FOE NSVCZ TMFFQ ίϯςφىಈޙ ඇಉظSleep
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! ओཁίϯϙʔωϯτ - ngx_mruby ngx_mruby Container • mruby-fast-remote-checkΛ༻͍ͯɺ 3way ϋϯυγΣʔΫޙʹclose(2) • Ԡ͕ͳ͚ΕίϯςφΛىಈ ϔϧενΣοΫϦΫΤετͷλΠϛϯάͰߦ͏
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! ओཁίϯϙʔωϯτ - haconiwa 3VCZͷ4ZOUBYͰίϯςφΛఆٛ )BDPOJXBEFpOFEPcDPOpHc DPOpHOBNFOFXIBDPOJXBUPCFIPTUOBNF DPOpHDHSPVQ<DQVTIBSFT> DPOpHDISPPU@UPWBSZPVS@SPPUGT DPOpHOBNFTQBDFVOTIBSFNPVOU DPOpHDBQBCJMJUJFTBMMPXBMM DPOpHDBQBCJMJUJFTESPQDBQ@TZT@BENJO FOE
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ओཁίϯϙʔωϯτ - CoreAPI(Jardin) • GolangΛ༻͍ͯɺlabstack/echoɺjinzhu/gormΛར༻͠։ൃ • GETܥݪଇRedisʹΩϟογϡ͠ɺԠੑೳΛ্ • Consul EventΛར༻֤ͯ͠ϩʔϧʹϝοηʔδϯάΛૹΔΑ͏ͳ͜ͱ ͍ͬͯΔ
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ओཁίϯϙʔωϯτ - usermetrics • PrometheusΛ࠾༻͠ɺϢʔβʔίϯςφͷใΛͯ͢ू • ίϯςφͷϦιʔεΛgoogle/cadvisorΛར༻͠ɺexporterܦ༝Ͱऩू • Prometheusܦ༝ͰAlertManager͔ΒWebhookͰΦʔτεέʔϧ • CPUɺMemoryɺNetworkෛՙͰΞϥʔτΛτϦΨʔ
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ओཁίϯϙʔωϯτ - Scheduler(kangetsu) • ϓϩϏδϣχϯάɾδϣϒεέδϡʔϥʔΛGolangͰrallison/go-workersΛར༻͠։ൃ • ετϨʔδྖҬͷ࡞ɺquotaͷઃఆ • DB࡞ • WordPressͷϓϨΠϯετʔϧ
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ओཁίϯϙʔωϯτ - Cleaner(skmr) • ֤ίϯϙʔωϯτͷσʔλෆ߹ΛࣗಈͰݕ͠मਖ਼ • κϯϏϓϩηεͷຣࡴ • ίϯςφঢ়ଶͱCMDBͷࠩΛऩଋ
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͓·͚ - Hashicorp Software • αʔϏεσΟεΧόϦʹConsulɺConsul DNSΛϑϧ׆༻ • DBʹ֨ೲ͢ΔൿಗใVaultΛར༻͠҉߸Խ • OpenStackVMͷϓϩϏδϣχϯάTerraformΛར༻
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ͳͥKubernetesͰͳ͍ͷ͔ʁ
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ͳͥKubernetesͰͳ͍ͷ͔ʁ 1.ϖύϘϗεςΟϯάࣄۀΛఏڙ 2.FastContainerΞʔΩςΫνϟ 3.࣌తͳཁҼ 4.ࣄۀࠩผԽ
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KubernetesͱϚωʔδυΫϥυͷҧ͍ 1.UI/UX 2.ΞʔΩςΫνϟ 3.ίϯςφىಈ 4.Φʔτεέʔϧ
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UI/UX ϚωʔδυΫϥυ Kubernetes •ϢʔβʔόοΫΤϯυΛҙࣝ͢Δ͜ͱͳ ͘ɺෛՙʹԠͯ͡Ϧιʔε͕૿ݮ͢Δ •ςϯϓϨʔτΛબ͠ɺscp͘͠gitpush ͰΞϓϦέʔγϣϯΛσϓϩΠ •YAMLͰهड़Ͱ͖ΔϦιʔεͰॊೈʹ Ϧιʔε͕ఆٛՄೳ •ҙͷίϯςφΠϝʔδ͕ར༻ՄೳͰ σϓϩΠίϯςφbuild͘͠mount
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ΞʔΩςΫνϟ
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etcd CMDB kube-api-server Jardin kube-scheduler kube-proxy kubelet container runtime haconiwa ΞʔΩςΫνϟ kubernetes ϚωʔδυΫϥυ ngx_mruby skmr usermetrics
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etcd CMDB kube-api-server Jardin kube-scheduler kube-proxy kubelet container runtime haconiwa σʔλετΞ kubernetes ϚωʔδυΫϥυ ngx_mruby skmr usermetrics
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etcd CMDB kube-api-server Jardin kube-scheduler kube-proxy kubelet container runtime haconiwa API&Scheduler kubernetes ϚωʔδυΫϥυ ngx_mruby skmr usermetrics
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etcd CMDB kube-api-server Jardin kube-scheduler kube-proxy kubelet container runtime haconiwa Node compornents kubernetes ϚωʔδυΫϥυ ngx_mruby skmr usermetrics
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etcd CMDB kube-api-server Jardin kube-scheduler kube-proxy kubelet container runtime haconiwa Container Runtime kubernetes ϚωʔδυΫϥυ ngx_mruby skmr usermetrics
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ίϯςφىಈ
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Kubernetes - ίϯςφىಈ • YAMLΛAPIʹೖ͢Δ͜ͱͰίϯςφىಈ • ϔϧενΣοΫProbeͰ࣮ߦ(HTTP/TCP/ExecCommand) • ىಈ࣌ʹߦ͏ͷreadinessProbeɺىಈޙlivenessProbe • ॳظԽॲཧInitContainerɺPostStartͰॳظԽॲཧΛϑοΫՄೳ • NඵִؒͰϑοΫ͢Δͱ͔ɺ༗ޮظݶ͕དྷͨΒίϯςφΛఀࢭ͢Δʹί ϯτϩʔϥʔͰಠ࣮͕ࣗඞཁ
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ίϯςφىಈϊʔυͲͷΑ͏ʹܾ·Δʁ ϚωʔδυΫϥυ Kubernetes •ੜଘ͍ͯ͠ΔϊʔυͷϥϯυϩϏϯ •ϊʔυ͕ఀࢭ͍ͯ͠Δ߹࣍ͷϦΫΤετ ͔ΒੜଘϊʔυͰίϯςφىಈ •kube-scheduler͕ϊʔυΛબ͢Δ •ϑΟϧλϦϯά(ϥϕϧɺϦιʔεetc) •είΞϦϯά(ࢄɺϦιʔεetc)
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Φʔτεέʔϧ
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ΦʔτεέʔϧͲͪΒmetricsϕʔε ϚωʔδυΫϥυ Kubernetes •usermetrics(Prometheus)ʹઃఆ͞ΕͨΞϥʔ τ͔ΒWebhookͰCoreAPI͕࣮ߦ͞Εɺίϯ ςφͷ༧͕૿͑Δ •εέʔϧΠϯʹ͍ͭͯɺෛՙ͕Լ͕ͬͨΒ ༧͕আ͞Εͯɺίϯςφͷ༗ޮظݶ͕ ౸དྷͨ͠ΒࣗಈͰεέʔϧΠϯ •metric-sserverΛΠϯετʔϧ͢Δͱɺ HorizontalPodAutoscalerΛར༻ͯ͠Ϧιʔε ʹԠͯ͡ΦʔτεέʔϧɾεέʔϧΠϯΛ࣮ ݱͰ͖Δ •ࢦఆͨ͠ෛՙʹͳΔΑ͏ʹϙου͕ௐ͞Ε Δ
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͜͜·Ͱͷ·ͱΊ • ϚωʔδυΫϥυKubernetes΄ͲॊೈͰͳ͍͕ɺΠϯϑϥʹৄ͘͠ ͳͯ͑͘Δɺ͓खܰΫϥυͰ͋Δ • ΞʔΩςΫνϟΦʔτεέʔϧͷڍಈͳͲྨࣅଟ͋͘Δ
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ϚωʔδυΫϥυ Ұ෦Kubernetesར༻
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ͳͥKubernetesͳͷ͔ʁ • ϚτϦϣʔγΧݕ౼͕ͨ͠ɺγεςϜμϯ࣌ͷӨڹ͕શஅʹͳΔͨΊ ϦεΫߴ͍ • KubernetesΛ͕ࣗͨͪӡ༻͠ɺΔ͜ͱͰΑΓΑ͍ΫϥυɾωΠςΟ ϒ(Ṗ
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ΫϥυαʔϏεΛఏڙ͠ͳ͕Βɺ KubernetesΛӡ༻
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ίϯςφΦʔέετϨʔγϣϯγεςϜ Scheduler compute-node Container Container Container compute-node Container Container Container εέδϡʔϥʔ͕ϊʔυʹϓϩηεΛׂΓͯɺ ·ͨͦΕΒͷใ͕ϦΞϧλΠϜʹऩू͞Εɺ ࣗతʹಈ͘γεςϜ
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ݟͨ͜ͱ͋Δͳʁʁʁ
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ίϯςφΦʔέετϨʔγϣϯγεςϜOSͬΆ͍ • εέδϡʔϥʔ͕ϓϩηεΛεέδϡʔϦϯά͠ɺͦΕΒͷϑΟʔυόο ΫΛड͚ͳ͕Βಈ͖ଓ͚Α͏ͱ͢ΔڍಈOSͱࣅ͍ͯΔ͕ଟ͍ • OSͱྨࣅ͕ଟ͍ͳΒOSʹ͓͚ΔάουϓϥΫςΟε͕ྑ͍࡞༻Λੜ ΉՄೳੑ͕͋Δ
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ϩάͷӬଓԽ
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OS γϯάϧϊʔυͷ߹ container log collector
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ΦʔέετϨʔγϣϯγεςϜ Scheduler compute-node Container Container Container log collector log collector log collector compute-node Container Container Container log collector log collector log collector
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ΦʔέετϨʔγϣϯγεςϜ Scheduler compute-node Container Container Container log collector log collector log collector compute-node Container Container Container log collector log collector log collector
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ϩάʹ͓͚Δ՝ • ैདྷͷΑ͏ʹ1ϩʔϧ1αʔόͰͳ͍͜ͱ͔Βɺ1ͭͷαʔόͰෳͷछ ྨͷϩά͕ग़ྗ͞ΕΔ • ίϯςφͷूੵΛߴΊΔͱɺچདྷΑΓϩάͷྲྀྔ࣮֬ʹ૿͑Δ • ෳͷछྨͷϩάΛղɺϧʔςΟϯά͢Δ͜ͱͷෳࡶ͞
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KafkaͰόοϑΝϦϯά͢Δ compute-node Container Container Container log collector log log Kafka cluster
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,BGLBͷಛ wߴॲཧ͕ՄೳͳϝοηʔδϯάγεςϜ wࢄॻ͖ࠐΈɺඇಉظϨϓϦέʔγϣϯ˞ɺࢄಡΈࠐΈ wॳظ-JOLFEJOʹͯ։ൃɺݱঢ়"QBDIFࡒஂʹͯཧɺ -JOLFEJO͔ΒεϐϯΞτͨ͠$POqVFOU͕։ൃΛओମతʹߦ͏ wݴޠ+BWBɺ4DBMBͰ։ൃ wΫϥελϦϯά͕ՄೳͰোੑɺૹୡอূɺݎ࿚ੑ͕ߴ͍
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LBGLBDMVTUFS ඵͰཧղ͢Δ,BGLB producer (ૹΓख) kafka-broker-1 topic partition-0 kafka-broker-2 topic partition-1 DPOTVNFSHSPVQ consumer (ड͚ख) consumer (ड͚ख) consumer (ड͚ख) ૹΓखͱड͚खΛ/ͱ͢ΔόοϑΝʔ
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ϩάͷग़ྗ࣌ؒ < Ξοϓϩʔυ࣌ؒ compute-node Container Container Container log collector log log Kafka cluster όϦૣ͍ʂ όϦ͍ʂʂʂ
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KafkaΛڬΉϝϦοτ wίϯςφىಈϊʔυͷϦιʔεΛ༗ޮར༻͢ΔͨΊʹɺϝΠϯΞϓϦ Ҏ֎ͷࣄΛͤ͞ͳ͍ w,BGLBΛڬΉ͜ͱͰσʔλ͕ू͞ΕΔ͜ͱͰɺଟ͘ͷίϯςφ͔Β ͷใΛҰՕॴͰѻ͑ΔΑ͏ʹͳΔ w,BGLBDPOOFDUΛར༻͢Δ͜ͱͰଟ͘ͷ044ɺϚωʔδυɾαʔϏε ͱ࿈ܞͰ͖ΔͷͰ͓ಘ
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ϖύϘ ϩάج൫(௨শେా) • ϓϩμΫγϣϯͰར༻͍ͯ͠ΔKubernetesͯ͢KafkaʹϩάΛू ͠ɺS3ͷϩάอશɺGryalogͰͷݕࡧ͕Մೳʹͳ͍ͬͯΔ • ΞϓϦέʔγϣϯ։ൃऀΞϓϦΛ։ൃ͢Δ͜ͱ͚ͩʹूதͰ͖Δ • ϚωʔδυΫϥυେాԽ͍ͨ͠
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ΫϥυωΠςΟϒΛΔʹ ·͕ͣࣗΫϥυωΠςΟϒʹͳΔ ඞཁ͕͋Δ
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ࣗͨͪͰੈքʹͨͩҰͭͷ ΫϥυαʔϏεΛΓ ӡ༻͢Δ͜ͱָ͍͠
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ΫϥυαʔϏεΛΓ ΫϥυαʔϏεͱΈ߹Θͤ ϢʔβʔΛϋοϐʔʹʂʂʂ
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࠷৽ͷ࠾༻ใΛνΣοΫˠ !QC@SFDSVJU Զͱ͜ͷϏοάΣʔϒʹͬͯ͘Εʂʂ̍