マネージドクラウドとCの世界

by sonod

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໺ాफҰ࿠(.01&1"#0JOD ϩϦϙοϓʂϚωʔδυΫϥ΢υ::NFFUJOH ϚωʔδυΫϥ΢υͱ$ͷੈք

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ΠϯϑϥΤϯδχΞ ໺ాफҰ࿠ !OETPFB ϗεςΟϯάࣄۀ෦ϚωʔδυΫϥ΢υνʔϜ

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$ͷੈքͱ͸

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ੜࢮʹؔ܎ͳ͘ɺ ਓͷ৺ͱهԱ͕ू·Δੈքʢू߹ແҙࣝʣ XJLJQFEJBҾ༻ IUUQTKBXJLJQFEJBPSHXJLJ&#&#$&&"&&"&#@&'%&&"&&"#&"#&#$&#&"&"&&"&#&"&"

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ੜࢮʹؔ܎ͳ͘ɺ ਓͷ৺ͱهԱ͕ू·Δੈքʢू߹ແҙࣝʣ XJLJQFEJBҾ༻ ίʔυΪΞε൓ٯͷϧϧʔγϡ IUUQTKBXJLJQFEJBPSHXJLJ&#&#$&&"&&"&#@&'%&&"&&"#&"#&#$&#&"&"&&"&#&"&"

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ϚωʔδυΫϥ΢υͷ$ͱ͸

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օ͞Μ͜ͷϩΰݟͨ͜ͱ͋Γ·͔͢ʁ

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ͦ͏Ͱ͢Ͷ

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8IBUJT$POTVM w)BTIJ$PSQ͕ࣾఏڙ͍ͯ͠ΔΫϥελͷ؅ཧπʔϧͰ͢  wެࣜϖʔδ͸ͪ͜ΒIUUQTXXXDPOTVMJP  w(JU)VC͸ͪ͜ΒIUUQTHJUIVCDPNIBTIJDPSQDPOTVM  w։ൃݴޠ͸ɺ(Pݴޠ

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8IBUJT$POTVM w)BTIJ$PSQ͕ࣾఏڙ͍ͯ͠ΔΫϥελͷ؅ཧπʔϧͰ͢ʁʁ  wެࣜϖʔδ͸ͪ͜ΒIUUQTXXXDPOTVMJP  w(JU)VC͸ͪ͜ΒIUUQTHJUIVCDPNIBTIJDPSQDPOTVM  w։ൃݴޠ͸ɺ(Pݴޠ

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8IBUJT$POTVM $POTVMIBTNVMUJQMFDPNQPOFOUT   CVUBTBXIPMF JUJTBUPPMGPSEJTDPWFSJOHBOEDPOpHVSJOHTFSWJDFTJO  ZPVSJOGSBTUSVDUVSF Β͍͠ʂʂ $POTVMʹ͸ෳ਺ͷίϯϙʔωϯτ͕͋Γ·͕͢ɺ  શମͱͯ͠ɺΠϯϑϥετϥΫνϟ಺ͷαʔϏεΛൃݟͯ͠  ߏ੒͢ΔͨΊͷπʔϧͰ͢ɻ ެࣜతʹ͸

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8IBUJT$POTVM ΠϯϑϥετϥΫνϟ಺ͷαʔϏεΛൃݟͯ͠  ߏ੒͢ΔͨΊͷπʔϧͱ͸ʁʁ

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM 4FSWJDF %JTDPWFSZ $POTVMΫϥΠΞϯτͰʮBQJʯ΍ʮNZTRMʯͳͲͷαʔϏεΛఆٛ͢Δͱɺ ଞͷΫϥΠΞϯτ͸$POTVMͰಛఆͷαʔϏεΛൃݟʢ%JTDPWFSZʣ͢Δ͜ͱ͕ग़དྷΔ ·ͨɺ%/4·ͨ͸)551Λར༻͢Δ͜ͱͰɺ ΞϓϦέʔγϣϯ͸ґଘ͍ͯ͠ΔαʔϏεͷ৘ใΛ؆୯ʹݟ͚ͭΔ͜ͱ͕ग़དྷΔ ܰ͘۷ΓԼ͛Δͱ

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{ "service": { { “name”: “keepalived”, “tags”: [“keepalived”], “checks”: [ { "script”: "/usr/lib/nagios/plugins/check_procs -c 1: -a keepalived”, “interval”: "30s” } ] } } 8IBUJT$POTVM ˝LFFQBMJWFEKTPO ͜Μͳײ͡Ͱɺ+40/Ͱ$POTVMʹαʔϏεΛఆٛ͢Δͱ

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# consul catalog services keepalived # dig keepalived.service.consul ;; ANSWER SECTION: keepalived.service.consul. 0 IN A 172.16.1.1 # curl http://127.0.0.1:8500/v1/catalog/services | jq. { "weblb-keepalived": [ "weblb-keepalived" ] } 8IBUJT$POTVM $POTVMΫϥΠΞϯτ΍%/4΍)551͔Β؆୯ʹಛఆͷαʔϏεΛݟ͚ͭΕΔΑ͏ʹͳΓ·͢

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# consul agent -data-dir=/etc/consul # cat /etc/consul/keepalived.json { "service": { { “name”: “keepalived”, “tags”: [“keepalived”], “checks”: [ { "script”: "/usr/lib/nagios/plugins/check_procs -c 1: -a keepalived”, “interval”: "30s” } ] } } 8IBUJT$POTVM $POTVMBHFOUΛىಈ͢Δࡍʹࢦఆͨ͠σΟϨΫτϦʹ഑ஔ͠·͢ ͜ͷσΟϨΫτϦʹ഑ஔ

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM 4FSWJDF %JTDPWFSZ ಛఆͷαʔϏε·ͨ͸ϊʔυͷϔϧενΣοΫΛ͢Δ͜ͱ͕ग़དྷΔ αʔϏεͷϔϧενΣοΫʹ͸ɺεΫϦϓτ΍/BHJPTϓϥάΠϯΛ࢖༻Ͱ͖Δ )FBMUI $IFDLJOH ܰ͘۷ΓԼ͛Δͱ

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM 4FSWJDF %JTDPWFSZ $POTVMͷ಺෦σʔλΛอ؅͢Δ֊૚ΩʔόϦϡʔετΞͰɺ Ϋϥελ಺ͷͲͷϊʔυ͔Β΋ΞΫηεग़དྷΔΑ͏ʹͳ͍ͬͯΔ ΞϓϦέʔγϣϯʹΑΔಈతઃఆมߋ΍$POTVMͷϦʔμʔબग़౳ʹ࢖༻Ͱ͖Δ $POTVMαʔόͱσʔληϯλʔͷ৘ใ΋͍࣋ͬͯΔ ·ͨɺ)551"1*Λ࢖༻͢Δ͜ͱͰ؆୯ʹΞΫηεग़དྷΔ ,74UPSF

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8IBUJT$POTVM ஫ҙ఺ͱͯ͠ɺWBMVFͷ্ݶ͕,#ͱ͍͏ ͜ͱ͚͓͍֮ͩ͑ͯͯ໯͑Ε͹ͱࢥ͍·͢ IUUQTXXXDPOTVMJPEPDTGBRIUNMRXIBUJTUIFQFSLFZWBMVFTJ[FMJNJUBUJPOGPSDPOTVMTLFZWBMVFTUPSF

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM $POTVM͸ɺҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ɻ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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8IBUJT$POTVM 4FSWJDF %JTDPWFSZ ΫϥελʔΛ%BUBDFOUFSͱ͍͏୯ҐͰ؅ཧ෼཭͓ͯ͠Γɺ ͦͷ%BUBDFOUFSͱҟͳΔ%BUBDFOUFSؒͷ࿈ܞΛαϙʔτ͍ͯ͠·͢ ͦΕͦ͜෺ཧతͳ%BUBDFOUFSؒΛͭͳ͛ΔΠϝʔδͰ͢ $POTVMతʹ͸ɺ ʮ$POTVMͷϢʔβʔ͕ෳ਺ͷ஍Ҭʹ੒௕͢ΔͨΊʹ ந৅ϨΠϠʔΛ௥Ճ͢Δ͜ͱΛ৺഑͢Δඞཁ͕ͳ͍͜ͱΛҙຯ͠·͢ɻʯ ͱͷ͜ͱͰ͢ɻ .VMUJ %BUBDFOUFS

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8IBUJT$POTVM ͜ͷΑ͏ͳҎԼͷͭͷॏཁͳػೳ͕૊Έ߹Θ͞Δ͜ͱʹΑΓɺ  ࣗಈͰΠϯϑϥ಺ͷαʔϏεΛൃݟ͠ઃఆߏ੒Λ͍ͯ͠·͢ͷͰɺ $POTVM͸ɺΠϯϑϥετϥΫνϟ಺ͷαʔϏεΛൃݟͯ͠ߏ੒͢ΔͨΊͷπʔϧ 4FSWJDF %JTDPWFSZ )FBMUI $IFDLJOH ,74UPSF .VMUJ %BUBDFOUFS

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$POTVMͷ"SDIJUFDUVSF

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#BTJD"SDIJUFDUVSFPG$POTVM $POTVMʹ͸େ͖͘෼͚ͯ̎ͭͷϞʔυ͕ଘࡏ͠·͢  ʮ4FSWFSʯͱʮ$MJFOUʯͰ͢  ֤ϊʔυ͸ɺ$POTVM"HFOUΛىಈ͢Δࡍʹɺ  ͜ͷͲͪΒ͔ͷϞʔυΛࢦఆ͠·͢ 4FSWFS $MJFOU

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#BTJD"SDIJUFDUVSFPG$POTVM $POTVMͷશͯͷσʔλͷ֨ೲ͠؅ཧ͢Δ໾ׂ  $POTVMͷΫϥελΛ૊Ή্Ͱ͸ඞͣ୆Ҏ্ඞཁͱͳΓɺ  σʔλଛࣦγφϦΦΛආ͚ΔͨΊʹd୆ߏ੒͕ਪ঑ͱ͞Ε͍ͯ·͢    ৑௕Խʹ͍ͭͯɿ  ৑௕ੑΛอͪͭͭσʔλͷҰ؏ੑΛ୲อ͢ΔͨΊʹɺ  ෼ࢄ߹ҙΞϧΰϦζϜͰ͋Δ3BGUϓϩτίϧ͕࠾༻͞Ε͍ͯ·͢  -FBEFS͕୆બग़͞Εɺଞ͸'PMMPXFSͱͳΓ·͢  -FBEFSͷΈ͕σʔλΛίϛοτ͠ɺ  'PMMPXFS͸σʔλΛਵ࣌ϨϓϦέʔγϣϯ͞Ε·͢ 4FSWFS $MJFOU $POTVMαʔόͱ௨৴Λ͠Ϋϥελ৘ใͷऔಘͱొ࿥Λ͢Δ໾ׂ  $POTVMαʔόͱ௨৴Ͱ͖ͳ͍ͱΫϥελ͔Β֎͞ΕΔ

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#BTJD"SDIJUFDUVSFPG$POTVM */5&3/&5 4FSWFS  'PMMPXFS 4FSWFS  -FBEFS 4FSWFS  'PMMPXFS $MJFOU $MJFOU %BUBDFOUFS -"/(044*1  5$16%1 3&1-*$"5*0/  5$1 3&1-*$"5*0/  5$1 31$  5$1 31$  5$1 -"/(044*1  5$16%1 %BUBDFOUFS -&"%&3 '038"3%*/( 8"/(044*1  5$16%1 3&.05&%$ '038"3%*/( 5$1

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#BTJD"SDIJUFDUVSFPG$POTVM (044*1ϓϩτίϧʹ͍ͭͯɿ  ͔͜͜Β  ϥϯμϜʹબΜͩ૬खͱ৘ใΛަ׵͠ɺࣗ਎͕࣋ͭσʔλͷߋ৽Λ܁Γฦ͢ɻ  γεςϜͷࢀՃऀ͕ෆఆظతʹ૿ݮͯ͠શମΛ೺ѲͰ͖ͳ͍ঢ়گ΍ɺ  Ұ࣌తʹ௨৴Ͱ͖ͳ͍৔߹Ͱ΋৘ใΛ఻ൖͰ͖Δɻ  ͜͜·ͰҾ༻ ΫϥελʔมߋͷӨڹΛड͚ͣʹ௨৴Λߦ͑Δ଱ো֐ੑͷߴ͍৘ใڞ༗ϓϩτίϧΒ͍͠ ʢXJLJQFEJB͔ΒҾ༻ʣ  IUUQTKBXJLJQFEJBPSHXJLJΰγοϓϓϩτίϧ

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ϚωʔδυΫϥ΢υͱ$POTVM

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͔͜͜Β͸ϚωʔδυΫϥ΢υͰ $POTVMΛ ࢖͍ͬͯΔ෦෼Λ঺հ͠·͢

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$POTVMͷ ͝঺հͰ͖͍ͯͳ͍ػೳ͕ ·ͩ·ͩ͋ΔͷͰซͤͯ͝঺հ͠·͢

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ϚωʔδυΫϥ΢υͷશମߏ੒

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$POTVMΛ  ࢖͍ͬͯΔͷ͕Ͳ͜ͳͷ͔ʂ ϚωʔδυΫϥ΢υͷશମߏ੒

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ϚωʔδυΫϥ΢υͷશମߏ੒ શ෦Ͱ͢Ͷ

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ϚωʔδυΫϥ΢υͷશମߏ੒ $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  $MJFOU $POTVM  4FSWFS $POTVM  4FSWFS $POTVM  4FSWFS 3&1-*$"5*0/  5$1 3&1-*$"5*0/  5$1 31$  5$1 31$  5$1 31$  5$1

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ϚωʔδυΫϥ΢υͷશମߏ੒ $POTVM  4FSWFS $POTVM  4FSWFS $POTVM  4FSWFS $POTVM  4FSWFS $POTVM  4FSWFS $POTVM  4FSWFS 4UBHJOH 1SPEVDUJPO ߋʹɺ.VMUJ%BUBDFOUFSߏ੒ʹͳ͍ͬͯ·͢  ڑ཭తʹ཭Εͨ%BUBDFOUFSͱ͔Ͱ͸ͳ͘ɺো֐ͷӨڹൣғ΍໊લղܾͷൣғΛ෼཭ͤ͞Δͨ Ίʹ࢖͍ͬͯ·͢ .VMUJ %BUBDFOUFS

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ϚωʔδυΫϥ΢υͷશମߏ੒ w ϚωʔδυΫϥ΢υ͸ɺશମͰ$POTVMΛ࢖༻͍ͯ͠·͢ w ֤ϊʔυͰ$POTVM͕"HFOUͰىಈ͓ͯ͠ΓαʔϏεొ࿥౳Λߦ͍ͬͯ·͢ w $POTVM4FSWFS͸୆Ͱ৑௕Խߏ੒ʹͳ͍ͬͯ·͢  $POTVM4FSWFS͸֤%BUBDFOUFSʹඞཁͳͷͰɺ͍ͬͺ͍͋Γ·͢ ͜͜Ͱ$POTVMͷඪ४ػೳͰ͸͋ΔΜͰ͕͢ɺ Ұ൪͓ੈ࿩ʹͳ͍ͬͯΔػೳͷ͓࿩Λ

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$POTVM%/4

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$POTVM%/4 w $POTVMʹ͸ɺ%/4ػೳ͕͋Γ·͢ w ϚωʔδυΫϥ΢υͰ͸ɺϩʔΧϧͷαʔόͷ໊લղܾΛશͯ$POTVMʹ·͔͍ͤͯ·͢ w σϑΥϧτͰ͸ɺOPEFDPOTVMͱ͍͏υϝΠϯ͕͖ͭ·͢  ਖ਼֬ʹ͸ɺOPEF\%BUBDFOUFS໊^DPOTVM w αʔϏεΛొ࿥͓͚ͯ͠͹ɺTFSWJDFDPOTVMͱ͍͏υϝΠϯͰ໊લղܾ͢Δ͜ͱ΋Մೳ w $POTVM%/4ͷϙʔτ͸ͳͷͰɺΞϓϦέʔγϣϯ΍SFTPMW͔Β࢖༻͍ͨ͠৔߹ ͸ɺEOTNBTR౳Λ࢖༻͢Δඞཁ͕͋Γ·͢  ϚωʔδυΫϥ΢υͰ͸ɺ6OCPVOEΛ࢖༻͍ͯ͠·͢ 4FSWJDF %JTDPWFSZ

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$POTVM%/4 $POTVM  4FSWFS   $PNQVUF ྫ͑͹$PNQVUFͱݴΘΕΔϊʔυͰ͸ɺ  ͜Μͳײ͡Ͱʮ6OCPVOE/4%$POTVMʯͰߏ੒͍ͯ͠·͢ $POTVM  $MJFOU 6OCPVOE /4% # cat unbound.conf server: interface: 127.0.0.1 do-not-query-localhost: no stub-zone: name: "consul." stub-addr: 172.16.1.1@8600 stub-zone: name: “lolipop.jp.” stub-addr: 172.16.1.1@10053 DPOTVMͩͬͨΒ$POTVM%/4 MPMJQPQKQͩͬͨΒ/4% /BNF4FSWFS%BFNPO ໊લղܾͩ 4FSWJDF %JTDPWFSZ

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$POTVM%/4 $POTVMΛىಈ͢Ε͹)551΍%/4͕࢖༻ՄೳͱͳΓ·͢ͷͰɺ͜Μͳײ͡Ͱ֬ೝͰ͖·͢ # consul members Node Address Status Type Build Protocol DC server-1 10.11.1.1:80 alive client 0.9.0 2 dc1 # dig server-1.node.consul ;; ANSWER SECTION: server-1.node.consul. 0 IN A 10.11.1.1 # curl http://127.0.0.1:8500/v1/catalog/nodes|jq .[]

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{ "service": { { “name”: “keepalived”, “tags”: [“keepalived”], “checks”: [ { "script”: "/usr/lib/nagios/plugins/check_procs -c 1: -a keepalived”, “interval”: "30s” } ] } } ˝LFFQBMJWFEKTPO αʔϏεͷ৔߹͸ɺ͜Μͳײ͡Ͱ+40/Ͱ$POTVMʹαʔϏεΛఆٛ͢Δͱ $POTVM%/4 4FSWJDF %JTDPWFSZ

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# dig keepalived.service.consul  ;; ANSWER SECTION: keepalived.service.consul. 0 IN A 172.16.1.1  keepalived.service.consul. 0 IN A 172.16.1.2  ͜Μͳײ͡ͰTFSWJDF୯ҐͰͷ໊લղܾΛ͢Δ͜ͱ΋Ͱ͖·͢ $POTVM%/4 ͍ͭͮͯ 4FSWJDF %JTDPWFSZ

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$POTVM5FNQMBUF

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$POTVM5FNQMBUF w (JU)VC͸ͪ͜ΒIUUQTHJUIVCDPNIBTIJDPSQDPOTVMUFNQMBUF  w $POTVMͷঢ়ଶมԽΛ؂ࢹ͢ΔσʔϞϯ  w $POTVMͷ,74ͷ৘ใΛ)551ܦ༝Ͱৗʹ؂ࢹ͍ͯ͠Δ  w $POTVMͷԿ͔͠ΒͷΠϕϯτ ϊʔυͷ૿ݮ ͕ൃੜͨ͠ࡍʹɺςϯϓϨʔτϑΝΠϧΛ΋ͱ ʹઃఆϑΝΠϧΛ࠶࡞੒͠ίϚϯυͷ࣮ߦ σʔϞϯͷ࠶ىಈ౳ Λͯ͘͠ΕΔ ,74UPSF )FBMUI $IFDLJOH 4FSWJDF %JTDPWFSZ

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$POTVM5FNQMBUF ͜Μͳ࣌ʹ࢖͍ͬͯΔ$POTVM5FNQMBUF  Ұ൪ଟ͍ύλʔϯ͕͜͏͍ͬͨ3FWFSTF1SPYZͷ૿ݮΛࣗಈతʹ࣮ࢪ͢Δͱ͜ΖͰ͢ -PBE  #BMBODFS 3FWFSTF 1SPYZ 3FWFSTF 1SPYZ 3FWFSTF 1SPYZ -PBE #BMBODFS 3FWFSTF 1SPYZ 3FWFSTF 1SPYZ 3FWFSTF 1SPYZ ઃఆ͕ࣗಈͰॻ͖׵ΘΓɺ੾Γ཭͞ΕΔ ઃఆ͕ࣗಈͰॻ͖׵ΘΓɺ-PBE#BMBODFSʹ௥Ճ͞ΕΔ 3FWFSTF 1SPYZ ˝3FWFSTF1SPYZ͕%PXO ˝ 3FWFSTF1SPYZΛ"%% 3WFSTF1SPYZΛ੾Γ཭ͨ͠ઃఆΛ࡞੒ͯ͠࠶ىಈ 3FWFSTF1SPYZΛ௥Ճͨ͠ઃఆΛ࡞੒ͯ͠࠶ىಈ ,74UPSF )FBMUI $IFDLJOH 4FSWJDF %JTDPWFSZ

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͜Μͳײ͡Ͱઃఆͱ5FNQMBUFΛॻ͍ͯ഑ஔ͓͚ͯͩ͘͠Ͱউखʹ΍ͬͯ͘Ε·͢ʂศརʂ # cat keepavilved.conf.ctmpl virtual_server 172.1.1.1 80 { delay_loop 10 lvs_sched rr lvs_method NAT protocol TCP {{range service "reverseproxy|passing"}} real_server {{.Address}} 80 { weight 1 TCP_CHECK { connect_port 80 connect_timeout 30 } }{{end}} } $POTVM5FNQMBUF ## cat config.hcl consul { address = "127.0.0.1:8500" ssl { enabled = false } } pid_file = "/var/run/consul-template/pid" template { source = "/etc/consul-template/keepalived.conf.ctmpl" destination = “/etc/keepalived/conf.d/reverseproxy.conf" command = "sudo systemctl reload keepalived" } SFWFSTFQSPYZͷαʔϏεΛ഑ྻʹͯ͠  ͦΕΛશͯొ࿥͠·͢ ϊʔυͷ*1ΞυϨε ഑ஔͯ͠σʔϞϯΛSFMPBE ˝5FNQMBUF ˝$POTVM5FNQMBUFͷઃఆ ,74UPSF )FBMUI $IFDLJOH 4FSWJDF %JTDPWFSZ

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$POTVMBMFSUT

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$POTVMBMFSUT w (JU)VC͸ͪ͜ΒIUUQTHJUIVCDPN"DBMFQI4UPSBHFDPOTVMBMFSUT  w $POTVMͷαʔϏε΍ϊʔυͷมԽ͕ൃੜͨ͠ࡍʹɺ.BJM΍4MBDL౳ʹ௨஌Λͯ͘͠ΕΔ σʔϞϯ  w ϚωʔδυΫϥ΢υͰ͸ɺ4MBDL௨஌Λ͓ͯ͠Γ͜Μͳײ͡Ͱ௨஌ͯ͘͠Ε·͢ ,74UPSF )FBMUI $IFDLJOH 4FSWJDF %JTDPWFSZ

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$POTVMFYQPSUFS

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΋͸΍$POTVM͔Βएׯ֎Ε͖ͯͯΔ͕ $POTVMFYQPSUFS

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$POTVMFYQPSUFS w (JU)VC͸ͪ͜ΒIUUQTHJUIVCDPNQSPNFUIFVTDPOTVM@FYQPSUFS w $POTVMͷαʔϏεͷঢ়ଶΛ1SPNFUIFVTʹసૹ͢ΔσʔϞϯ w ϚωʔδυΫϥ΢υͷ؂ࢹج൫͸1SPNFUIFVTΛ࢖༻͍ͯ͠·͢ͷͰɺ  ϊʔυͷঢ়ଶ؅ཧͷͨΊʹ࢖༻͍ͯ͠·͢    1SPNFUIFVTʹ͍ͭͯɿ  ͬ͘͟Γઆ໌͢Δͱɺ༷ʑͳϝτϦΫεΛ࣌ܥྻͰ͍͍ײ͡ʹूܭɾه࿥Ͱ͖ΔπʔϧͰ͢  ৄ͘͠͸ฐࣾVE[VSBͷ͜ͷลΓͷهࣄΛݟͯ΋Β͑Δͱྑ͍͔ͱࢥ͍·͢  IUUQTVE[VSBIBUFOBCMPHKQFOUSZ  IUUQTTQFBLFSEFDLDPNVE[VSBNBOBHFEDMPVEXJUIQSPNFUIFVT ,74UPSF )FBMUI $IFDLJOH 4FSWJDF %JTDPWFSZ

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$POTVMFYQPSUFS .FUSJD .FBOJOH DPOTVM@VQ $POTVMͷ࠷ޙͷ2VFSZ͕੒ޭ͔ͨ͠ DPOTVM@TFSG@MBO@NFNCFST Ϋϥελʔ಺ͷϝϯόʔ਺ DPOTVM@DBUBMPH@TFSWJDFT Ϋϥελʔʹؚ·ΕΔαʔϏε਺ DPOTVM@DBUBMPH@TFSWJDF@OPEF@IFBMUIZ ϊʔυ্ͷαʔϏε͕ਖ਼ৗ͔ DPOTVM@IFBMUI@OPEF@TUBUVT ϊʔυʹؔ࿈෇͚ΒΕͨϔϧενΣοΫͷεςʔλε DPOTVM@IFBMUI@TFSWJDF@TUBUVT αʔϏεʹؔ࿈෇͚ΒΕͨϔϧενΣοΫͷεςʔλε શ෦Ͱ͸ͳ͍͕औಘͰ͖Δ৘ใ͸͜ͷΑ͏ͳײ͡Ͱɺ  1SPNFUIFVTଆ͔Β΋͜ͷΑ͏ͳײ͡Ͱ֬ೝ͢Δ͜ͱ͕Ͱ͖·͢

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ଞʹ΋৭ʑ࢖͍ͬͯΔ෦෼͸͋ΔΜͰ͕͢ ࠓճ͸࣌ؒͷؔ܎্͜͜·ͰͰɾɾɾ

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·ͱΊ

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$POTVMΛ࢖͏ͱ؆୯ʹ Ϋϥελʔ؅ཧΛ͢Δ͜ͱ͕Ͱ͖ͯɺ ϊʔυͷ؅ཧΛָͰ͖Δ 1.

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ϩʔΧϧͷ%/4ొ࿥ͷखؒ΍  1SPNFUIFVTͰͷϊʔυ؅ཧͷखؒͳͲ  ͕͸Ϳ͚Δ 2.

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αʔϏε୯ҐͰϔϧενΣοΫͰ͖ΔͷͰ ϊʔυͷ૿ݮରԠ΍ো֐ݕ஌Λ ؆୯ʹग़དྷΔ 3.

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ͭ·Γ

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ϚωʔδυΫϥ΢υ͸ $POTVMΛ࢖ͬͯҰ෦ͷӡ༻Λָͯ͠·͢

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͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠