PersistentVolumeの一歩進んだ使い方

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1FSTJTUFOU7PMVNFͷ ҰาਐΜͩ࢖͍ํ :VLJOPSJ4BLBTIJUB

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ࣗݾ঺հ ‣ٕज़ݚڀΤϦΞ ӡ༻؅ཧٕज़ Ϋϥ΢υ αʔόετϨʔδ ࣗಈࣗ཯ίϯϐϡʔςΟϯά "*.- // ).. #BZFTJBO/FUXPSL ‣લ৬ ೔ཱ੡࡞ॴ 㾎தԝݚڀॴԣ඿ݚڀॴ ओ೚ݚڀһ 㾎ւ֎ݚڀॴ!γϦίϯόϨʔ ϥϘ௕ αʔόϕϯμʔ ςΫχΧϧ4& 2 ࡔԼ޾ಙ ത࢜ :VLJOPSJ4BLBTIJUB 1I% ‣ ϠϑʔגࣜձࣾθοτϥϘגࣜձࣾ ‣ 4/*"೔ຊࢧ෦ٕज़ҕһձ෭ҕһ௕ ‣ 4/*"5FDIOJDBM$PVODJM"EWJTPS

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ओͳॻ੶8FCهࣄߨԋ ‣ ॻ੶,VCFSOFUFT࣮ફೖ໳ ग़൛ ‣ 8FCهࣄ5IJOL*5 ίϯςφΛಋೖ͠ͳ͍ͱɺͲͷΑ͏ͳະདྷ͕ ଴͍ͬͯͨͷ͔ ݱ৔Ͱ໾ཱͭ5JQT͕੝Γͩ͘͞Μ ,VCFSOFUFTͷΞϨ΍ίϨ ‣ ߨԋ ߴ஌޻Պେֶ৘ใֶ܈ಛผߨٛʮσʔλͷരൃత૿ՃΛ ࢧ͑ΔετϨʔδͷઌ୺ٕज़ͱࠃࡍඪ४Խʯ ,VCF'FTU5PLZPʮϠϑʔθοτϥϘͷ εςʔτϑϧΞϓϦέʔγϣϯ΁ͷ௅ઓʯ 3

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"HFOEB ‣ ,VCFSOFUFTͰΞϓϦέʔγϣϯΛ࣮ߦ͢ΔϢʔβ޲͚ 7PMVNF&YQBOTJPO 7PMVNF4OBQTIPU 7PMVNF$MPOJOH ‣ ,VCFSOFUFTΛఏڙ͢Δ؅ཧऀ޲͚ 5PQPMPHZ .VMUJ";3FHJPO .POJUPSJOH 4 ؔ࿈ൃද,VCFSOFUFT.FFUVQ5PLZPlೖ໳ɺ,VCFSOFUFT1FSTJTUFOU7PMVNFz IUUQTTQFBLFSEFDLDPNZTBLBTIJUBSVNFOLVCFSOFUFTQFSTJTUFOUWPMVNF

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7PMVNF&YQBOTJPO Ϣ ʔ β ޲ ͚

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7PMVNF&YQBOTJPOͱ͸ ‣ 1FSTJTUFOU7PMVNF 17 ͷαΠζΛ૿΍͢ػೳ ॖখ͸ෆՄ ‣ ετϨʔδͷ7PMVNFͷαΠζͱ'JMF4ZTUFNͷαΠζΛಉ࣌ʹ֦ு ‣ 4UPSBHF$MBTTʹBMMPX7PMVNF&YQBOTJPOUSVFΛઃఆ ‣ 1PEͷ࠶࡞੒͕ෆཁͳ0OMJOF ‣ 1PEͷ࠶࡞੒͕ඞཁͳ0⒐JOF 6 ( ( BQJ7FSTJPOTUPSBHFLTJPW LJOE4UPSBHF$MBTT ʜ BMMPX7PMVNF&YQBOTJPOUSVF 4UPSBHF$MBTTͷઃఆྫ

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มߋՕॴ ‣ 1FSTJTUFOU7PMVNF$MBJN 17$ ͷαΠζΛมߋ 7 BQJ7FSTJPOW LJOE1FSTJTUFOU7PMVNF$MBJN NFUBEBUB OBNFQWD TQFD TUPSBHF$MBTT/BNFTUBOEBSE BDDFTT.PEFT 3FBE8SJUF0ODF SFTPVSDFT SFRVFTUT TUPSBHF(J BQJ7FSTJPOW LJOE1FSTJTUFOU7PMVNF$MBJN NFUBEBUB OBNFQWD TQFD TUPSBHF$MBTT/BNFTUBOEBSE BDDFTT.PEFT 3FBE8SJUF0ODF SFTPVSDFT SFRVFTUT TUPSBHF(J

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࣮ߦྫ 8 $ kubectl get pvc NAME STATUS VOLUME CAPACITY ・・・ test-pvc Bound pvc-5452b84e-56e0-43cf-ada9-7491fd3ae2d4 10Gi $ kubectl patch pvc test-pvc -p "{\"spec\":{\"resources\":{\"requests\":{\"storage\": \"50Gi\"}}}}" $ kubectl get pvc NAME STATUS VOLUME CAPACITY ・・・ test-pvc Bound pvc-5452b84e-56e0-43cf-ada9-7491fd3ae2d4 50Gi มߋ

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9 ҰาਐΜͩ࿩

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4UBUFGVM4FUͰ͸ཁ஫ҙ ‣ 7PMVNF$MBJN5FNQMBUF͔Β࡞੒͞Εͨ17$ͷαΠζ͸มߋՄೳ ‣ ͔͠͠ɺσϓϩΠ͞Εͨ4UBUFGVM4FUͷ7PMVNF$MBJN5FNQMBUFT͸มߋෆՄ ‣ (JU)VCͳͲͰ.BOJGFTUΛ؅ཧ͍ͯ͠Δ৔߹͸ζϨ͕ੜ͡ͳ͍Α͏ʹ஫ҙ 10 BQJ7FSTJPOBQQTW LJOE4UBUFGVM4FU ʜ WPMVNF$MBJN5FNQMBUFT NFUBEBUB OBNFCMPDL TQFD BDDFTT.PEFT<3FBE8SJUF0ODF> TUPSBHF$MBTT/BNFTUBOEBSE SFTPVSDFT SFRVFTUT TUPSBHF( มߋ͍ͨ͠ "QQMZ ࢀߟ ,&1IUUQTHJUIVCDPNLVCFSOFUFTFOIBODFNFOUTJTTVFT *TTVFIUUQTHJUIVCDPNLVCFSOFUFTLVCFSOFUFTJTTVFT

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8PSLBSPVOE ‣ 4UBUFGVM4FUΛDBTDBEFΦϓγϣϯͰҰ࣌࡟আ ‣ खॱྫ LVCFDUMQBUDIίϚϯυͳͲͰطଘͷ17$ͷαΠζΛมߋ 4UBUFGVM4FUͷ.BOJGFTUϑΝΠϧ಺ͷWPMVNF$MBJN5FNQMBUFTͷαΠζΛ खॱͱಉ͡αΠζʹมߋ DBTDBEFΦϓγϣϯͰ4UBUFGVM4FUΛҰ࣌࡟আ ࡞੒ࡁΈͷ1PE 17$ 17͸࡟আ͞Εͳ͍ ࠶౓ɺखॱͰมߋͨ͠.BOJGFTUϑΝΠϧΛ"QQMZ 11 $ kubectl delete sts —cascade=false

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8PSLBSPVOE ஫ҙ఺ ‣ खॱͱͷؒ͸4UBUFGVM4FUͷϦιʔε͕ଘࡏ͠ͳ͍ ‣ ͜ͷؒʹো֐͕ൃੜ͢ΔͱηϧϑώʔϦϯάͰͷ෮چ͠ͳ͍ ‣ खॱͱ͸ؒ൅ೖΕͣʹ࣮ߦ͢Δͷ͕͓קΊ 12

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8PSLBSPVOE ‣ 7PMVNF$MBJN5FNQMBUFTͰࣗಈੜ੒͞ΕΔ17$ͱ ಉ໊͡લͷ17$ͷ.BOJGFTUϑΝΠϧΛ༻ҙ ‣ 17$ͷ.BOJGFTUϑΝΠϧͰαΠζΛมߋ ‣ 4UBUFGVM4FUͷ7PMVNF$MBJN5FNQMBUFTͷαΠζ͸มߋ͠ͳ͍ͨΊɺ ৽نʹ࡞੒͞ΕΔ17$17͸ݩͷαΠζͷͨΊཁ஫ҙ ‣ 17$ͷ.BOJGFTUϑΝΠϧΛผ్࡞੒͢Δඞཁ͕͋Γ 4UBUFGVM4FUͷ7PMVNF$MBJN5FNQMBUFTͷϝϦοτ͕൒ݮ 13

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17ͷ҆શͳαΠζ ‣ 7PMVNF&YQBOTJPO͸ɺ࠷ऴखஈ͙Β͍ͷҙࣝͰαΠζΛࣄલʹઃܭ ‣ ετϨʔδͰ5IJO1SPWJTJPOJOH͕αϙʔτͷ৔߹ɺαΠζͷେ͖ͳ17 Λ༧Ί࡞੒ 5IJO1SPWJTJPOJOH͸࣮ࡍͷॻ͖ࠐ·ΕͨྖҬͷΈ ෺ཧϝσΟΞ 44%ɺ)%% Λফඅ ‣ 4UBUFGVM4FUͰͷ7PMVNF&YQBOTJPO͸8PSLBSPVOE͕͓קΊ 8PSLBSPVOEͷ࣮ࢪத͸(JU0QT่͕Εͯ͠·͏͕ɺҎ߱͸(JU0QT͕ܧଓ 8PSLBSPVOE͸4UBUFGVM4FUͰεέʔϧΞ΢τલʹ17$ͷ.BOJGFTUΛ࡞੒ ͢Δඞཁ͋Γ ๨ΕΔͱ17ͷσʔλᷓΕͷࣄނʹͭͳ͕ΔϦεΫ͋Γ 14

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7PMVNF4OBQTIPU Ϣ ʔ β ޲ ͚

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4OBQTIPUͱ͸ ετϨʔδͷ஌ࣝ ‣ 4OBQTIPUΛ࡞੒ͨ࣌͠ࠁͷσʔλΛอଘ͢Δػೳ 16 " 5JNF # # "` $ $ "Λ"`ʹ ॻ͖׵͑ 4OBQTIPU 7PMVNF " " # $ " # $ #` "` 4OBQTIPU࡞੒ 4PVSDF 4OBQTIPU࡞੒ #Λ#`ʹ ॻ͖׵͑ ࠩ෼σʔλͷ อଘྖҬ $P8 $PQZPO8SJUF ʹ ΑΔࠩ෼όοΫΞοϓ "`

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,VCFSOFUFTͷ7PMVNF4OBQTIPU ‣ 7PMVNF4OBQTIPU͸ͭͷϦιʔεͰදݱ 7PMVNF4OBQTIPU4OBQTIPUͷཁٻ࢓༷ 7PMVNF4OBQTIPU$POUFOU4OBQTIPUͷίϯςϯπ ࠩ෼σʔλͷू߹ 7PMVNF4OBQTIPU$MBTT4OBQTIPU༻ͷ4UPSBHF$MBTT ͷΑ͏ͳ΋ͷ ‣ 7PMVNF4OBQTIPUϦιʔεΛ࡞੒͢Δ͜ͱͰετϨʔδ಺Ͱ4OBQTIPU͕࣮ߦ ‣ 7PMVNF4OBQTIPU$POUFOUϦιʔε͸ࣗಈੜ੒ 17

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7PMVNF4OBQTIPU 18 BQJ7FSTJPOTOBQTIPUTUPSBHFLTJPWCFUB LJOE7PMVNF4OBQTIPU NFUBEBUB OBNFTOBQTIPUQWD TQFD WPMVNF4OBQTIPU$MBTT/BNFDTJTOBQTIPU TPVSDF QFSTJTUFOU7PMVNF$MBJN/BNFUFTUQWD UFTUQWD TOBQTIPUQWD ࢦఆ .BOJGFTUͷ"QQMZ 4OBQTIPU࣮ߦ

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3FTUPSF ‣ 7PMVNF4OBQTIPU͔Βͷ3FTUPSF͸17$Λ࡞੒͢Δ͜ͱͰ࣮ࢪ 19 BQJ7FSTJPOW LJOE1FSTJTUFOU7PMVNF$MBJN NFUBEBUB OBNFQWDGSPNTOBQTIPU TQFD BDDFTT.PEFT 3FBE8SJUF0ODF TUPSBHF$MBTT/BNFTUBOEBSE SFTPVSDFT SFRVFTUT TUPSBHF(J EBUB4PVSDF BQJ(SPVQTOBQTIPUTUPSBHFLTJP LJOE7PMVNF4OBQTIPU OBNFTOBQTIPUQWD QWDGSPNTOBQTIPU TOBQTIPUQWD .BOJGFTUͷ"QQMZ 3FTUPSF࣮ߦ

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20 ҰาਐΜͩ࿩

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ݩͷ17ͷඞཁੑ ‣ ετϨʔδͷ4OBQTIPU͸ࠩ෼σʔλͷΈอଘ ‣ 4OBQTIPUதͷࠩ෼σʔλ΁ͷΞΫηε͸ݪଇ3FBE0OMZ ‣ ݩͷ7PMVNFΛ࡟আ͢Δͷ͸/( ‣ ,VCFSOFUFTͷ7PMVNF4OBQTIPUʹ͓͍ͯ΋ݩͷ17$17͸࡟আͯ͠͸/( ‣ ໰୊ 3FTUPSFͨ͠ޙͰ͋Ε͹ɺ࢖Θͳ͘ͳͬͨݩͷ17$17͸࡟আͯ͠΋ྑ͍͔ʁ 21

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ݩͷ17ͷඞཁੑ ଓ͖ ‣ ౴͑ ར༻͢ΔετϨʔδʹΑΓ·͢ 22 # "` $ " 3FBE8SJUF 3FBE8SJUF # "` $ " ݩͷ7PMVNF 4OBQTIPU 3FBE8SJUF 3FBE # "` $ " 3FBE8SJUF 3FBE8SJUF # $ 4OBQTIPUத 8SJUBCMF4OBQTIPUΛ࢖༻ $MPOFͰ৽ن7PMΛ࡞੒ ݩͷ17͸ ࡟আ/( ݩͷ17͸ ࡟আ0, 3FTUPSF " 3FBE

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7PMVNF$MPOJOH Ϣ ʔ β ޲ ͚

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$MPOFͱ͸ ετϨʔδͷ஌ࣝ ‣ ݩͷ7PMVNFͷෳ੡ Ϋϩʔϯ Λ࡞੒ ‣ ݩͷ7PMVNFΑΓখ͞ͳ7PMVNF΁͸$MPOFͰ͖ͳ͍ ‣ ετϨʔδͰߦΘΕΔͨΊɺαʔόͷ$16.FNPSZ/FUXPSLΛ࢖Θͳ͍ 24 # $ " # $ " 7PMVNF" 7PMVNF"` $MPOJOH

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,VCFSOFUFTͷ7PMVNF$MPOJOH ‣ 17$ͷEBUB4PVSDFʹΫϩʔϯݩͷ17$Λࢦఆ ‣ όοΫΞοϓ༻్ͳͲʹར༻ 25 BQJ7FSTJPOW LJOE1FSTJTUFOU7PMVNF$MBJN NFUBEBUB OBNFQWD TQFD BDDFTT.PEFT 3FBE8SJUF0ODF TUPSBHF$MBTT/BNFTUBOEBSE SFTPVSDFT SFRVFTUT TUPSBHF(J EBUB4PVSDF LJOE1FSTJTUFOU7PMVNF$MBJN OBNFQWD .BOJGFTUͷ"QQMZ $MPOJOH࣮ߦ QWD QWD

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26 ҰาਐΜͩ࿩

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4UBUFGVM"QQͷεέʔϧΞ΢τ ‣ σʔλΛ࣋ͭεςʔτϑϧΞϓϦͷεέʔϧΞ΢τͰ͸ σʔλಉظʹ൐͏ίϐʔ͕ൃੜ͢Δέʔε͕͋Δ ‣ 7PMVNF$MPOJOH͸େྔͷσʔλΛ࣋ͭεςʔτϑϧΞϓϦΛ εέʔϧΞ΢τͤ͞Δͷʹ༗ޮ /PEFͷ$16.FNPSZ/FUXPSLΛ࢖Θͳ͍ͨΊσʔλίϐʔʹΑΔ ੑೳӨڹΛ཈͑ΒΕΔ ߴ଎ 27

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.Z42-ͷεέʔϧΞ΢τͷྲྀΕ 28 4PVSDF 3FQMJDB 4PVSDF ৽͍͠.Z42-ͷ1PEΛ࡞੒ /FX 4PVSDF όοΫΞοϓΛऔಘ /FX #BDLVQ -PH1PTJUJPO 4PVSDF όοΫΞοϓΛΠϯϙʔτ /FX #BDLVQ -PH1PTJUJPO 4PVSDF 3FQMJDBͱͯ͠ىಈ 3FQMJDB ࢀরܥ42- ߋ৽ܥ42- .Z42-$MJFOUT .Z42-Ϛϧνߏ੒ εέʔϧΞ΢τ࣌ͷ3FQMJDB૿ઃεςοϓ 4UPSBHF

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.Z42-ͷεέʔϧΞ΢τ 29 ‣ .Z42-ͷόοΫΞοϓσʔλͷड͚౉͠ʹ͸௨Γͷํ๏͕͋Γ 4PVSDF /FX #BDLVQ /'4PS0CKFDU4UPSBHF ํ๏ ํ๏ ํ๏ 4PVSDF /FX #BDLVQ 4PVSDF /FX $MPOJOH

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ํ๏ͱํ๏ͷҧ͍ 30 4UPSBHF 4UPSBHF ํ๏ 4FSWFS$PQZ ํ๏ 7PMVNF$MPOJOH σʔλͷྲྀΕ

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4FSWFS$PQZͰͷεέʔϦϯάྫ ‣ JOJU$POUBJOFSͰεΫϦϓτΛ࣮ߦ͠όοΫΞοϓΛίϐʔ ‣ αΠυΧʔͰεΫϦϓτΛ࣮ߦ͠όοΫΞοϓΛΠϯϙʔτˍ ϩάͷϙδγϣϯΛઃఆͨ͠ޙɺ3FQMJDBͱͯ͠.Z42-Λىಈ ‣ શ.BOJGFTU͸ҎԼΛࢀর IUUQTLVCFSOFUFTJPKBEPDTUBTLTSVOBQQMJDBUJPOSVOSFQMJDBUFETUBUFGVMBQQMJDBUJPO 31 JOJU$POUBJOFST ʜ DPNNBOE CBTI ʜ # Get data from previous peer. ncat --recv-only mysql-$(($ordinal-1)).mysql 3307 | xbstream -x -C /var/lib/mysql # Prepare the backup. xtrabackup --prepare --target-dir=/var/lib/mysql

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7PMVNF$MPOJOHͷεέʔϦϯάྫ 32 BQJ7FSTJPOW LJOE1FSTJTUFOU7PMVNF$MBJN NFUBEBUB OBNFEBUBNZTRM TQFD ʜ apiVersion: apps/v1 kind: StatefulSet metadata: name: mysql … volumeClaimTemplates: - metadata: name: data … dataSource: kind: PersistentVolumeClaim name: data-mysql-0 ‣ 4PVSDFͱͳΔ.Z42-ͷ1PE NZTRM ͷ17$͸ࣄલʹ࡞੒ ͜ͷͱ͖ͷ17$໊͸7PMVNF$MBJN5FNQMBUFTͰࣗಈੜ੒͞ΕΔ໊લ ‣ 4UBUFGVM4FUͷ7PMVNF$MBJN5FNQMBUFͰEBUB4PVSDFʹ্ه17$Λࢦఆ ‣ .Z42-ͷίϯςφͰεΫϦϓτΛ࣮ߦ͠ϩάͷϙδγϣϯΛઃఆޙɺ3FQMJDB ͱͯ͠.Z42-Λىಈ

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4FSWFS$PQZWT7PMVNF$MPOJOH ‣ 4FSWFS$PQZͱ7PMVNF$MPOJOHΛ࢖ͬͨ৔߹ͷੑೳͷҧ͍͸ʁ 33

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ੑೳଌఆ؀ڥ ‣ ,VCFSOFUFTW XPSLFSY୆ W$16Y .FNPSZ.# ‣ /FU"QQ0/5"1W /FU"QQ5SJEFOU ‣ .Z42- SFTPVSDFTSFRVFTUTDQVN NFNPSZ(J ‣ TZTCFODIʹͯ4PVSDFͷ.Z42-΁ࣄલʹϨίʔυΛొ࿥ .Z42-ͷϨίʔυ਺ ԯϨίʔυɺ໿(# ‣ 4UBUFGVM4FUͷ3FQMJDBTΛ͔Β΁εέʔϧΞ΢τͤ͞ଌఆ 34 TZTCFODIECESJWFSNZTRMNZTRMIPTUNZTRMNZTRMNZTRMVTFSSPPUa UBCMF@TJ[FPMUQ@SFBE@POMZQSFQBSF LVCFDUMTDBMFSFQMJDBTTUBUFGVMTFUNZTRM

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ଌఆ݁Ռ 35 εέʔϧΞ΢τʹཁͨ͠૯࣌ؒ 3FQMJDBTˠ 1PE͋ͨΓͷੜ੒࣌ؒ ฏۉ ˞ TFD1PE TFD1PE 7PMVNF$MPOJOH 4FSWFS$PQZ 5JNF 4FD 4FSWFS$PQZ 7PMVNF$MPOJOH ˞1PE಺ͷίϯςφ͕શͯىಈ͢Δ·Ͱͷ࣌ؒ

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ଌఆ݁Ռ 36 7PMVNF $MPOJOH 4FSWFS $PQZ $16 /FUXPSL

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7PMVNF$MPOJOHͷ஫ҙ఺ 37 ‣ %#ͷεέʔϧ࣌͸௥Ճɾߋ৽ͷτϥϯβΫγϣϯ͕ೖΒͳ͍Α͏ʹ 8SJUFϩοΫΛ࣮ߦ͕Ұൠత %#ͷ੩ࢭԽ ‣ 4FSWFS$PQZ͸1PEͰ࣮ߦ͢ΔεΫϦϓτ಺ͰόοΫΞοϓ௚લʹ࣮ࢪՄೳ ‣ 7PMVNF$MPOJOHͰ͸1PEͷੜ੒લʹσʔλͷίϐʔ͕ऴΘ͍ͬͯΔͨΊɺ1PEͰ ࣮ߦ͢ΔεΫϦϓτͰ͸஗͍ ࣄલʹखಈͰ42-࣮ߦPSผ1PE͔Β࣮ߦͳͲ 4PVSDF 3FQMJDB σʔλͷແ͍ 17$17Λ࡞੒ εΫϦϓτ࣮ߦ σʔλίϐʔ .Z42-ىಈ σʔλίϐʔࡁΈͷ 17$17Λ࡞੒ εΫϦϓτ࣮ߦ .Z42-ىಈ $MPOJOHJO4UPSBHF 4PVSDF 3FQMJDB 4FSWFS$PQZ 7PMVNF$MPOJOH %#ͷ੩ࢭԽ ΋࣮ࢪ %#ͷ੩ࢭԽ ΋࣮ࢪ

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5PQPMPHZ .VMUJ";3FHJPO ؅ ཧ ऀ ޲ ͚

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;POFΛҙ͍ࣝͯ͠ͳ͍഑ஔ ‣ 1PEΛ5PQPMPHZ4QSFBE$POTUSBJOUTͰ;POFΛҙࣝͨ͠഑ஔ ‣ ͔͠͠ɺ7PMVNFͷ഑ஔͷߟྀ͕࿙Ε͍ͯΔͱো֐ରࡦͱͯ͠͸ยखམͪ 39 ,VCFSOFUFT 4UPSBHF "; "; Ͳͷ";ͷ෺ཧϝσΟΞ ͔Β7PMVNF͕ ੜ੒͞Ε͍ͯΔͷͩΖ͏ʁ " # $ " # $

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$4*ͷ5PQPMPHZ"XBSF ‣ 4UPSBHF$MBTTʹͯ;POFΛࢦఆ͠17 7PMVNF ͷੜ੒ݩΛࢦఆ 40 "; "; ";༻ ";༻ 40 LJOE4UPSBHF$MBTT ʜ BMMPXFE5PQPMPHJFT NBUDI-BCFM&YQSFTTJPOT LFZGBJMVSFEPNBJOLVCFSOFUFTJP[POF WBMVFT "; LJOE4UPSBHF$MBTT ʜ BMMPXFE5PQPMPHJFT NBUDI-BCFM&YQSFTTJPOT LFZGBJMVSFEPNBJOLVCFSOFUFTJP[POF WBMVFT "; ৄࡉͳಈ࡞ݕূ͸ͪ͜ΒΛࢀর IUUQTRJJUBDPNZTBLBTIJUBJUFNTCBBDBEDF

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41 ҰาਐΜͩ࿩

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.VMUJ";3FHJPOো֐ରԠ 42 ‣ ετϨʔδ͸σʔλΛࣦΘͳ͍͜ͱ͕ϛογϣϯͷΠϯϑϥػث ‣ ";3FHJPOো֐΁ͷରࡦํ๏͸උ͍͑ͯΔ͜ͱ͕ଟ͍ %JTBTUFS3FDPWFSZରԠ ͲͪΒ͕࢖͑Δ͔͸ετϨʔδ੡඼࣍ୈ .JSSPS ಉظඇಉظ 4UPSBHF" 4UPSBHF# "; "; # $ " # $ " "; "; %BUB/PEF" #` $` " %BUB/PEF# # $`` "` %BUB/PEF$ #`` $ "`` ϛϥʔʹΑΔো֐ରࡦ σʔλϨϓϦέʔγϣϯʹΑΔ෼ࢄ഑ஔ # $ "

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,VCFSOFUFTͰͷઃܭࢦ਑ 43 ‣ બ୒ࢶ͸େ͖ͭ͘ Ϣʔβ͕";3FHJPOΛҙࣝͯ͠17࡞੒ Ϣʔβʹ";3FHJPOΛҙࣝͤͣ͞ʹ17࡞੒

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Ϣʔβ͕";Λҙࣝͯ͠17࡞੒ 44 ‣ ";3FHJPOো֐࣌ͷσʔλফࣦ͸Ϣʔβ੹೚ ‣ $4*ͷ5PQPMPHZΛར༻ "; "; ";༻ ";༻

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Ϣʔβʹ";Λҙࣝͤͣ͞ʹ17࡞੒ 45 ‣ ";3FHJPOো֐࣌ͷσʔλফࣦ͸Πϯϑϥ؅ཧऀͷ੹೚ ‣ ετϨʔδͷػೳΛ׆༻ ϛϥʔPSσʔλϨϓϦέʔγϣϯ ‣ ύϒϦοΫΫϥ΢υͷ৔߹ɺ4%4ΛηοτΞοϓ͠ߏங͢Δํ๏΋͋Γ "; "; "; "; %BUB/PEF" %BUB/PEF# %BUB/PEF$

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.POJUPSJOH ؅ ཧ ऀ ɾ Ϣ ʔ β ޲ ͚

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1SPNFUIFVTͷϝτϦΫε؂ࢹ ‣ ετϨʔδͷ7PMVNF͕ͲͷΑ͏ʹίϯςφʹϚ΢ϯτ͞Ε͍ͯΔͷ͔Λཧղ ‣ 17ͷϝτϦΫε͸/PEFͱ֎෦ετϨʔδͷ྆ํ͔Βͷ؂ࢹ͕ϕλʔ /PEF ετϨʔδ ωοτϫʔΫͷͲ͜ʹϘτϧωοΫ͕͋Δ͔Λ෼ੳ σΟϨΫτϦ σόΠε EFWTEC NOUEBUB WBSMJCLVCFMFUQPET1PEͷNFUBEBUBVJEWPMVNFTLVCFSOFUFTJPdDTJ17ͷNFUBEBUBOBNFNPVOU EFWTEB /PEFFYQPSUFSͷϞχλϦϯάൣғ LVCFMFUͷϞχλϦϯάൣғ D"EWJTPSͷϞχλϦϯάൣғ ֎෦ετϨʔδ ಺ଂσΟεΫ $POUBJOFS <ࢀߟ৘ใετϨʔδؔ࿈ͷϝτϦΫεҰཡ> IUUQTRJJUBDPNZTBLBTIJUBJUFNTDCBCD

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48 ҰาਐΜͩ࿩

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17$17ࢹ఺ͷੑೳ؂ࢹ ‣ 17$ 17ͷ৘ใ͸LVCFTUBUFNFUSJDTͷϝτϦΫε ੑೳ৘ใ͸ͳ͠ αΠζɺ਺ͳͲ ‣ ੑೳ৘ใ͸/PEFFYQPSUFS D"EWJTPSͷϝτϦΫε JPTUBU૬౰ͷ৘ใΛऔಘ 49 &MFNFOU 7BMVF kube_persistentvolumeclaim_info{…,namespace=“default”,persistentvolumeclaim=“block-pv- test-0”,storageclass=“standard”,...,volumename="pvc-9639e9ae-de8b-4f24-86f6-72273a74329b"} ྫ LVCF@QFSTJTUFOUWPMVNFDMBJN@JOGP &MFNFOU 7BMVF node_disk_written_bytes_total{…,device=“sda”,instance=“demo-test-worker-default-efe1dfcc-bn6q7”…} ྫ OPEF@EJTL@XSJUUFO@CZUFT@UPUBM

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17$ࢹ఺Ͱͷੑೳ؂ࢹͷམͱ݀͠ ‣ (SBGBOB΍1SPNFUIFVTͰ17$໊17໊Ͱੑೳ؂ࢹΛ͍ͨ͠ ‣ ϝτϦΫε͕୯७ʹ࿈݁Ͱ͖ͳ͍ LVCFTUBUFNFUSJDTͷϝτϦΫεͷWPMVNFOBNF͸17໊ͷΈ /PEFFYQPSUFS D"EWJTPSͷϝτϦΫεͷσόΠε໊͸04Ͱೝࣝͨ͠΋ͷ 50 &MFNFOU 7BMVF kube_persistentvolumeclaim_info{…,namespace=“default”,persistentvolumeclaim=“block-pv- test-0”,storageclass=“standard”,...,volumename="pvc-9639e9ae-de8b-4f24-86f6-72273a74329b"} ྫ LVCF@QFSTJTUFOUWPMVNFDMBJN@JOGP &MFNFOU 7BMVF node_disk_written_bytes_total{…,device=“sda”,instance=“demo-netapptest-worker-default-efe1dfcc-bn6q7”, …} ྫ OPEF@EJTL@XSJUUFO@CZUFT@UPUBM

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ղܾҊ ‣ OPEF@pMFTZTUFN@999ͷϝτϦΫεΛؒʹڬΈղܾ NPVOUQPJOU͔Β17໊ WPMVNFOBNF Λநग़͠࿈݁ 51 &MFNFOU 7BMVF kube_persistentvolumeclaim_info{…,namespace=“default”,persistentvolumeclaim=“block-pv- test-0”,storageclass=“standard”,...,volumename="pvc-9639e9ae-de8b-4f24-86f6-72273a74329b"} ྫ LVCF@QFSTJTUFOUWPMVNFDMBJN@JOGP &MFNFOU 7BMVF node_disk_written_bytes_total{…,device=“sda”,instance=“demo-test-worker-default-efe1dfcc-bn6q7”…} ྫ OPEF@EJTL@XSJUUFO@CZUFT@UPUBM &MFNFOU 7BMVF node_ﬁlesystem_avail_bytes{…,device=“/dev/sda”,fstype=“ext4”,instance="demo-test-worker-default- efe1dfcc-bn6q7",mountpoint="/var/lib/kubelet/pods/d1267489-a972-414a-9b38-987d3a7ea28c/volumes/ kubernetes.io~csi/pvc-9639e9ae-de8b-4f24-86f6-72273a74329b/mount"...} ྫ OPEF@pMFTZTUFN@BWBJM@CZUFT

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݁Ռ 52 sum(irate(node_disk_read_bytes_total[5m])) by (device, instance) + on(device, instance) group_left (persistentvolume, persistentvolumeclaim, namespace) label_replace(label_replace(node_ﬁlesystem_size_bytes{mountpoint=~"/var/lib/kubelet/pods/[^/]*/volumes/ kubernetes.io~csi/[^/]*/mount", fstype=~"ext4|xfs"}, "device", "$1", "device", "/dev/(.*)"), "persistentvolume", "$1", "mountpoint", "/var/lib/kubelet/pods/[^/]*/volumes/kubernetes.io~csi/([^/]*)/mount")*0 * on (persistentvolume) group_left (persistentvolumeclaim, namespace) label_replace(kube_persistentvolumeclaim_info, "persistentvolume", "$1", "volumename", "(.+)") ྫΫΤϦʔ

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53 ΋͏ҰาਐΜͩ࿩

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Ϛϧνύε-7.Ͱͷམͱ݀͠ ‣ Ϛϧνύε΍-7.Ͱ͸σόΠε໊͕ஔ͖׵͑ΒΕΔͨΊ࿈݁Ͱ͖ͳ͍ ઌఔͷྫ͸γϯάϧύεͷΈ༗ޮ 54 &MFNFOU 7BMVF kube_persistentvolumeclaim_info{…,namespace=“default”,persistentvolumeclaim=“block-pv- test-0”,storageclass=“standard”,...,volumename="pvc-fdcf278e-7ba0-44da-831b-2092ffcb2589"} ྫ LVCF@QFSTJTUFOUWPMVNFDMBJN@JOGP &MFNFOU 7BMVF node_disk_written_bytes_total{…,device=“dm-0”,instance=“demo-test-worker-default-efe1dfcc-bn6q7”…} ྫ OPEF@EJTL@XSJUUFO@CZUFT@UPUBM &MFNFOU 7BMVF node_filesystem_avail_bytes{…,device=“”/dev/mapper/mpatha”,fstype=“ext4”,instance="demo-test-worker- default-efe1dfcc-bn6q7",mountpoint="/var/lib/kubelet/pods/d1267489-a972-414a-9b38-987a407bb12f/ volumes/kubernetes.io~csi/pvc-fdcf278e-7ba0-44da-831b-2092ffcb2589/mount"...} ྫ OPEF@pMFTZTUFN@BWBJM@CZUFT 54

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ղܾҊ ‣ OPEF@FYQPSUFSͷ*TTVFΛௐࠪˠະղܾ IUUQTHJUIVCDPNQSPNFUIFVTOPEF@FYQPSUFSJTTVFT ‣ /PEFFYQPSUFSͷUFYUpMFDPMMFDUPSΛ։ൃ 55 # HELP x_node_mountpoints_info Information about mountpoint in node # TYPE x_node_mountpoints_info gauge x_node_mountpoints_info{mountpoint="/", devname="/dev/vda1", device="vda1", fstype="ext4"} 1 x_node_mountpoints_info{mountpoint="/var/lib/kubelet", devname="/dev/vda1", device="vda1", fstype="ext4"} 1 x_node_mountpoints_info{mountpoint="/var/lib/kubelet/pods/d1267489-a972-414a-9b38-987d3a7ea28c/volumes/ kubernetes.io~csi/pvc-9639e9ae-de8b-4f24-86f6-72273a74329b/mount", devname="/dev/mapper/mpatha", device=“dm-0", fstype="ext4"} 1 ։ൃͨ͠textﬁle collectorͷग़ྗྫ

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݁Ռ 56 sum(irate(node_disk_written_bytes_total[5m])) by (device, instance) + on (device, instance) group_left (volumename, persistentvolumeclaim, namespace) label_replace(node_ﬁlesystem_avail_bytes{fstype=~"ext4|xfs"}, "volumename", "$1", "mountpoint", "/var/lib/ kubelet/pods/[^/]*/volumes/kubernetes.io~csi/([^/]*)/mount") * 0 * on(mountpoint, instance) group_left(device, persistentvolumeclaim, namespace) x_node_mountpoints_info{fstype=~"ext4|xfs"} * on (volumename) group_left (persistentvolumeclaim, namespace) kube_persistentvolumeclaim_info ྫΫΤϦʔ

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·ͱΊ ‣ Ϣʔβ޲͚ʹҰาਐΜͩ17ͷ࢖͍ํΛ঺հ 7PMVNF&YQBOTJPO 7PMVNF4OBQTIPU 7PMVNF$MPOJOH ‣ ؅ཧऀ޲͚ʹҰาਐΜͩ17Λࢧ͑Δ؀ڥߏஙʹ͍ͭͯ঺հ 5PQPMPHZ .POJUPSJOH 57