ステートフルアプリ on Kubernetesの現在と今後の展望

εςʔτϑϧΞϓϦPO,VCFSOFUFTͷ   ݱࡏͱࠓޙͷల๬ ʙεςʔτϑϧͷۤखҙࣝΛਧͬඈ͹ͦ͏ʙ :VLJOPSJ4BLBTIJUB

ࣗݾ঺հ ‣ ٕज़ݚڀΤϦΞ ӡ༻؅ཧٕज़ Ϋϥ΢υ αʔόετϨʔδ
ࣗಈࣗ཯ίϯϐϡʔςΟϯά "*.- // ).. #BZFTJBO/FUXPSL ‣ ৬ྺ ೔ཱ੡࡞ॴ 㾎தԝݚڀॴԣ඿ݚڀॴ ओ೚ݚڀһ 㾎ւ֎ݚڀॴ!γϦίϯόϨʔ ϥϘ௕ αʔόϕϯμʔ ςΫχΧϧ4& 2 ࡔԼ޾ಙ ത࢜ :VLJOPSJ4BLBTIJUB 1I% ‣ ϠϑʔגࣜձࣾθοτϥϘגࣜձࣾ ‣ 4/*"೔ຊࢧ෦ٕज़ҕһձ෭ҕһ௕ ݉Ϣʔεέʔε෼Պձ௕ ‣ 4/*"5FDIOJDBM$PVODJM"EWJTPS

"HFOEB ,VCFSOFUFTʹ͓͚ΔετϨʔδͱεςʔτϑϧΞϓϦ εςʔτϑϧΞϓϦPO,VCFSOFUFTͷτϨΠϧϚοϓ ,VCFSOFUFTͷετϨʔδؔ࿈ͷಈ޲ 3

,VCFSOFUFTʹ͓͚Δ   ετϨʔδͱεςʔτϑϧΞϓϦ

εςʔτϑϧΞϓϦͷ෩ධ ‣ ೥ࠒ 7.ͷීٴ࢝Ί ʮ7.ͰεςʔτϑϧΞϓϦ %# Λಈ͔͢ͳΜͯ༗Γಘͳ͍ʯ ‣
೥ 7.ͰεςʔτϑϧΞϓϦ͕࢖͑ͳ͍ͱ͍͏ਓ͸ɺ΄΅ډͳ͍ ϕΞϝλϧPS7.Λཁ݅΍ӡ༻ํ਑ʹΑΓબ୒ ‣ ҰํɺʮίϯςφͰεςʔτϑϧΞϓϦΛಈ͔͢ͳΜͯ༗Γಘͳ͍ʯ   ʮίϯςφ͸εςʔτϑϧΞϓϦ͕ۤखʯͱࢥ͍ࠐΜͰ͍Δਓ͕ɺҙ֎ͱଟ͍ ೉͍͠ɺෳࡶ ੑೳ͕ѱ͍ʁ 5

εςʔτϑϧΞϓϦͷීٴঢ়گ 6 ग़య$/$'4637&: IUUQTXXXDODGJPXQDPOUFOUVQMPBET$/$'@4VSWFZ@3FQPSU@QEG ‣ ίϯςφʹ͓͚ΔεςʔτϑϧΞϓϦ͸طʹ͕ϓϩμΫγϣϯར༻ ‣ ίϯςφ͕εςʔτϑϧΞϓϦ͕ۤखͱ͍͏࣌୅͸ऴΘͬͨ 88

ίϯςφରԠͷεςʔτϑϧΞϓϦ ‣ .Z42- 1PTUHSF42- $BTTBOESB 3FEJT ͳͲଟ͘ͷεςʔτϑϧΞϓϦ͸   ίϯςφʹରԠ ‣
,VCFSOFUFTͷϑϨʔϜϫʔΫΛ࢖ͬͨ 0QFSBUPS ͷొ࿥αΠτ 0QFSBUPS)VCJP ʹ΋εςʔτϑϧΞϓϦ͕ଟ͘ొ࿥ 7 $BUFHPSJFT /VNCFSPG*UFNT "*.BDIJOF-FBSOJOH "QQMJDBUJPO3VOUJNF #JH%BUB $MPVE1SPWJEFS %BUBCBTF %FWFMPQFS5PPMT %SJWFSTBOEQMVHJOT *OUFHSBUJPO%FMJWFSZ -PHHJOH5SBDJOH .PEFSOJ[BUJPO.JHSBUJPO .POJUPSJOH /FUXPSLJOH 0QFO4IJGU0QUJPOBM 4FDVSJUZ 4UPSBHF 4USFBNJOH.FTTBHJOH 0QFSBUSP)VCJPͷొ࿥਺ ࣌఺ ΦϖʔϨʔλʹ͍ͭͯ͸ɺޙ΄Ͳ঺հ

,VCFSOFUFTͷετϨʔδϞσϧ ‣ ,VCFSOFUFTͰ͸ετϨʔδΛந৅Խ ‣ ϕϯμʔχϡʔτϥϧͳϞσϧ 1FSTJTUFOU7PMVNF$MBJN 1FSTJTUFOU7PMVNF
4UPSBHF$MBTT ‣ ετϨʔδͷਂ͍φϨοδͳ͘ѻ͑Δ   Ϟσϧ ‣ ετϨʔδͷૢ࡞ͳ͠Ͱ7PMVNFΛ   ίϯςφʹࣗಈͰϚ΢ϯτ 8 ར༻ऀ ؅ཧऀ

ίϯςφ·ͰͷϘϦϡʔϜͷύε σΟϨΫτϦ σόΠε EFWTEC EFWTEB ֎෦ετϨʔδ ಺ଂσΟεΫ ίϯςφ NOUEBUB
WBSMJCLVCFMFUQPET1PEͷNFUBEBUBVJEWPMVNFTLVCFSOFUFTJPdDTJ17ͷNFUBEBUBOBNFNPVOU

ϕΞϝλϧɾίϯςφɾ7.ͷൺֱ ϕΞϝλϧ 7. Ծ૝σΟεΫ 7. ύεεϧʔ ίϯςφ ,VCFSOFUFT %FWJDF'JMF 'JMF4ZTUFN
7. )ZQFSWJTPS 7. )ZQFSWJTPS %FWJDF'JMF $POUBJOFS /PEF %FWJDF'JMF 'JMF4ZTUFN 7PM /PEF %FWJDF'JMF 'JMF4ZTUFN "QQ 'JMF4ZTUFN %FWJDF'JMF "QQ 7PM 7PM 7PM 7JSUVBM %*TL "QQ 'JMF4ZTUFN "QQ %FWJDF'JMF ‣ ίϯςφPO7.ͷ৔߹͸ɺίϯςφͱ7.ͷೋ֊ݐͯ

ίϯςφͷੑೳʹؔ͢Δࢀߟ࿦จ ‣ *#."VTUJO3FTFBSDI-BCPSBUPSZͷ   8FT'FMUFS "MFYBOESF'FSSFJSB 3BN3BKBNPOZ +VBO3VCJP͕ൃද ‣
l"O6QEBUFE1FSGPSNBODF$PNQBSJTPOPG7JSUVBM .BDIJOFTBOE-JOVY$POUBJOFSTz ‣ /BUJWF %PDLFS ,7.ͰͷϕϯνϚʔΫ݁ՌΛղઆ 11 ग़యɹIUUQTJFFFYQMPSFJFFFPSHEPDVNFOU

εςʔτϑϧΞϓϦͷӡ༻ ‣ εςʔτϑϧΞϓϦͰ͸7.ɾίϯςφ ,VCFSOFUFT ʹؔΘΒͣ   7PMVNFΛׂΓ౰ͯΔҎ֎ʹ΋ߟ͑ΔϙΠϯτ͋Γ γϟοτμ΢ϯ͢ΔલʹΩϟογϡ্ͷσʔλΛετϨʔδ΁  
ॻ͖ग़ͨ͢Ίʹ4ZOD 'MVTI ͕ඞཁ εςʔτϑϧΞϓϦʹΑͬͯ͸εέʔϧΞ΢τ΍όʔδϣϯΞοϓ࣌ʹɺ   σʔλಉظ΍ϦετΞͷૢ࡞͕ඞཁ 12 ☝σʔλΛ࣋ͨͳ͍εςʔτϨεΞϓϦͰ͸ෆཁ

.Z42-ͷεέʔϧΞ΢τͷྲྀΕ 13 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

,VCFSOFUFTͰͷ࣮ݱํ๏ ‣ େ͖ͭ͘ͷύλʔϯ ‣ εΫϦϓτԽࣗ͠ಈԽ JOJU$POUBJOFS΍αΠυΧʔίϯςφͳͲͰεΫϦϓτΛ࣮ߦ˞ εΫϦϓτΛ಺แ͠ɺࣄલ࣮ߦ͢ΔίϯςφΠϝʔδΛ࡞੒ ‣
3FDPODJMJBUJPO-PPQΛ׆༻ͨ͠0QFSBUPS ΧελϜϦιʔε   ΧελϜίϯτϩʔϥ ʹΑΔࣗ཯؅ཧ 14 3FDPODJMJBUJPO   -PPQ ؂ࢹ ࠩ෼நग़ ߋ৽ ˞ࢀߟ৘ใɹ   IUUQTLVCFSOFUFTJPKBEPDTUBTLTSVOBQQMJDBUJPOSVOSFQMJDBUFETUBUFGVMBQQMJDBUJPO

ࣗ཯؅ཧͱ͸ 15 ‣ ೥ॳ಄ʹ*#.͔ࣾΒࣗ཯ίϯϐϡʔςΟϯάͷ֓೦͕ఏএ ‣ ͦͷޙɺࣗ཯ίϯϐϡʔςΟϯάͷ؅ཧํ๏ͱͯࣗ͠཯؅ཧ͕ొ৔ ‣ ࣗ཯ίϯϐϡʔςΟϯά͸ɺਓؒͷࣗ཯ਆܦͷΑ͏ʹίϯϐϡʔλ͕ࣗ཯తʹ   ࣗݾ؅ཧΛߦ͏ߟ͑ํ
ࣗݾߏ੒ 4FMG$PO fi HVSJOH ɺࣗݾम෮ 4FMG)FBMJOH ɺ   ࣗݾ࠷దԽ 4FMG0QUJNJ[JOH ɺࣗݾ๷Ӵ 4FMG1SPUFDUJOH ‣ ࣗ཯؅ཧ͸,OPXMFEHFΛ֩ʹ   .POJUPSˠ"OBMZ[Fˠ1MBOˠ&YFDVUFͷϧʔϓʹΑΓ؅ཧ ग़య +F ff SFZ0,FQIBSUBOE%FWJE.$IFTT5IF7JTJPOPG"VUPOPNJD$PNQVUJOH *&&&$PNQVUFS4PDJFUZ QQr (-BOGSBODIJ 1%1FSVUB "1FSSPOFBOE%$BMWBOFTF5PXBSEB/FX-BOETDBQFPG4ZTUFNT.BOBHFNFOUJOBO"VUPOPNJD$PNQVUJOH&OWJSPONFOU *#.4:45&.4+063/"- 7PM /P QQr

ϓϩηεͷՔಇ཰ .5#' ฏۉނোִؒ .553 ฏۉम෮࣌ؒ Քಇ཰Քಇ࣌ؒͷ૯࿨શମ࣌ؒ.5#' .5#' .553
Քಇ࣌ؒ ఀࢭ࣌ؒ Քಇ࣌ؒ ఀࢭ ෼ Քಇ࣌ؒ ఀࢭ ෼ Քಇ࣌ؒ ఀࢭ ෼ ʜ Քಇ࣌ؒ ఀࢭ ෼ Քಇ࣌ؒ ఀࢭ ෼ ύλʔϯ೥ؒͷՔಇ཰ɹ .5#'࣌ؒ .553࣌ؒ ೥ؒ࣌ؒ ೔ ࣌ؒ ύλʔϯ೥ؒͷՔಇ཰ .5#'࣌ؒ .553࣌ؒ ෼ ‣ ίϯςφ΍,VCFSOFUFT͸.553Λ୹͘͢Δͷʹ༗ޮͳٕज़ ‣ ಉ͡Քಇ཰Ͱ΋ύλʔϯ͸͋Γ ఀࢭ࣌ؒ͸ো֐͚ͩͰͳ͘   εέʔϧมߋɾόʔδϣϯΞοϓͳͲͷܭըతͳఀࢭ΋ؚΉ

εςʔτϑϧΞϓϦPO,VCFSOFUFT τϨΠϧϚοϓ

τϨΠϧϚοϓ 18 ϑΝΠϧڞ༗ όοΫΞοϓ γϯάϧߏ੒ͷεςʔτϑϧΞϓϦ Ϛϧνߏ੒ͷεςʔτϑϧΞϓϦ
0QFSBUPS։ൃʹΑΔࣗ཯؅ཧ 1. File sharing 2. Backup 3. Stateful App(Single) 4. Stateful App(Multi) 5. Developing Operator for Autonomous Management

ϑΝΠϧڞ༗ 19 ‣ ·ͣ͸17$17ʹ׳ΕΑ͏ ‣ 17$17Λ࢖ͬͯ1PEؒͰϑΝΠϧΛڞ༗ ྫಉछΞϓϦͰͷϑΝΠϧڞ༗ ྫҟछΞϓϦͰͷϑΝΠϧڞ༗ ྫ։ൃɾσόοΫ༻ͷϑΝΠϧஔ͖৔ 8FC4FSWFS
8FC4FSWFS ը૾ɾಈըɾ ੩తίϯςϯπFUD Ϟσϧσʔλ .-5SBJOJOH .-4FSWJOH 3 3FBE 8 8SJUF 38 38 8 3 6CVOUV Ұ࣌తͳ1PE γΣϧΤσΟλઃఆϑΝΠϧɺ   CBTISD WJNSDFUD σόοΫ༻πʔϧεΫϦϓτͳͲ 17$17͸࡟আͤͣ࢖͍ճ͠

όοΫΞοϓ 20 ‣ σʔλΛόοΫΞοϓ͢Δํ๏Λ஌Γɺো֐࣌ͳͲͷσʔλϩετʹඋ͑Δ ‣ 7PMVNF4OBQTIPU 7PMVNF$MPOJOHͳͲͷ࢖͍ํͱಛੑΛཧղ ‣ ετϨʔδᝑମ֎΁ͷόοΫΞοϓͱόοΫΞοϓπʔϧΛཧղ ࠩ෼σʔλ
ࠩ෼σʔλ ετϨʔδ#   ΦϒδΣΫτετϨʔδͳͲ ετϨʔδ" $MPOJOH 4OBQTIPU 4OBQTIPU 3FTUPSF #BDLVQ ,BOJTUFS <ࢀߟ৘ใ> l1FSTJTUFOU7PMVNFͷҰาਐΜͩ࢖͍ํz $/%5   IUUQTTQFBLFSEFDLDPNZTBLBTIJUBQFSTJTUFOUWPMVNFGBMTFCVKJOOEBTIJJGBOH l,VCFSOFUFTͷϦιʔεɾ1FSTJTUFOU7PMVNFΛόοΫΞοϓ͢Δ7FMFSPͷݕূz   IUUQTRJJUBDPNZTBLBTIJUBJUFNTBCBEBDFDFB l,VCFSOFUFT/BUJWFͳόοΫΞοϓπʔϧ,BOJTUFSͷݕূz   IUUQTRJJUBDPNZTBLBTIJUBJUFNTFECGE

γϯάϧߏ੒ͷεςʔτϑϧΞϓϦ 21 ‣ γϯάϧߏ੒ͷεςʔτϑϧΞϓϦͷڍಈΛ೺Ѳ͢Δ ‣ ΞϓϦͷઃఆํ๏ɺͲͷσʔλΛ17$17Λ࢖ͬͯӬଓԽ͢΂͖͔Λཧղ͠ઃܭ   ΞϓϦຖʹҟͳΔͨΊɺର৅ΞϓϦͷ஌͕ࣝඞཁ ྫγϯάϧߏ੒ͷσʔλϕʔε

Ϛϧνߏ੒ͷεςʔτϑϧΞϓϦ ྫϚϧνߏ੒ͷσʔλϕʔε ‣ εέʔϧΞ΢τՄೳͳεςʔτϑϧΞϓϦΛ࣮ݱ͢Δ ‣ ΞϓϦຖʹҟͳΔσʔλಉظͷઃఆखॱɾํࣜɾಛੑͳͲΛཧղ͠ઃܭ   0QFSBUPS΍)FMN౳Ͱ༰қʹߏஙͰ͖Δέʔε΋͋Δ͕ɺӡ༻͢ΔͨΊʹ͸ํࣜɾಛੑͳͲͷཧղ͸ඞཁ TPVSDF SFQMJDB
SFQMJDB ɾɾɾ

0QFSBUPS։ൃʹΑΔࣗ཯؅ཧ 23 TPVSDF SFQMJDB SFQMJDB ɾɾɾ Controller ‣ ࣗ૊৫ͷӡ༻खॱ΍ϊ΢ϋ΢Λ0QFSBUPS΁࣮૷ ‣
0QFSBUPSʹΑΔࣗ཯ӡ༻ԽΛߦ͍ɺ؅ཧෛՙͷܰݮ΍ϊ΢ϋ΢ͷଐਓԽΛ࡟ݮ ྫ0QFSBUPSʹΑΔϚϧνߏ੒ͷσʔλϕʔε؅ཧ 0QFSBUPS Ϛϧνߏ੒ͷσʔλϕʔε ؅ཧ ࣗ཯

,VCFSOFUFTͷ   ετϨʔδؔ࿈ͷಈ޲

ண໨͍ͯ͠Δಈ޲ 25 ‣ *P5ͳͲͷ&EHF؀ڥ޲͚ͷετϨʔδ ‣ ΞϓϦ࿈ܞͷόοΫΞοϓ

&EHF؀ڥ޲͚ͷετϨʔδ 26 ‣ 4%4 4PGUXBSF%F fi OFE4UPSBHF ΛίϯςφԽ͠ɺ,VCFSOFUFT্Ͱ   ಈ࡞ͤ͞Δ,VCFSOFUFT/BUJWF4UPSBHF͕ීٴ
  FH3PPL $FQI -POHIPSO 0QFO&#4ͳͲ ‣ ,VCFSOFUFT/BUJWF4UPSBHF͕ଓʑͱBSNରԠ   FH-POHIPSOW ,4ରԠ BSN ` 0QFO&#4W BSNରԠ ` 3PPL $FQI W ` ‣ 3BTQCFSSZ1JͳͲখܕͷίϯϐϡʔλͰ΋ಈ࡞Մೳ ‣ *P5ͳͲ&EHFଆͰσʔλॲཧΛߦ͍͍ͨ৔߹ʹ΋׆༻Ͱ͖ΔΑ͏ʹͳΓ   Ϣʔεέʔε͕޿͕Δ͜ͱΛظ଴

ΞϓϦ࿈ܞͷόοΫΞοϓ 27 ‣ ʹઃཱ͞Εͨ4*(4UPSBHF͔Β೿ੜ͠%BUB1SPUFDUJPO8(͕஀ੜ ‣ ΞϓϦࢹ఺ͰͷόοΫΞοϓʹ͍ͭͯٞ࿦ 6T 6TFS TUBSUT CBDLVQ
,4 3FTPVSDF#BDLVQ %BUB #BDLVQ "QQMJDBUJPO/BUJWF %BUB%VNQ &YQPSU #BDLVQ /BUJWF $POUSPMMFS $PPSEJOBUFE 2VJFTDF 7PMVNF 4OBQTIPU   PS#BDLVQ :FT /P 5ZQJDBM"QQ#BDLVQ8PSL fl PX 6ORVJFTDF 5ZQJDBM"QQ3FTUPSF8PSL fl PX 6T 6TFS TUBSUT SFTUPSF *NQPSU #BDLVQ ,4 3FTPVSDF 3FTUPSF 17$17 3FTUPSF 3FTUPSFGSPN OBUJWFEBUB EVNQ 3FIZESBUF17$GSPN 7PMVNF4OBQTIPU 7PMVNF#BDLVQ /BUJWF :FT /P ग़య,VCF$PO $MPVE/BUJWF$PO&VSPQF7JSUVBM   l,VCFSOFUFT%BUB1SPUFDUJPO8(*OUSPBOE%FFQ%JWFz   IUUQTLDDODFVTDIFEDPNFWFOUJ&/

,4ίϯϙʔωϯτ #BDLVQʣ 28 %BUB #BDLVQ "QQMJDBUJPO/BUJWF %BUB%VNQ &YQPSU #BDLVQ /BUJWF
$POUSPMMFS $PPSEJOBUFE 2VJFTDF 7PMVNF 4OBQTIPU   PS#BDLVQ :FT /P 6ORVJFTDF 1SPDFTT &YJTUJOH,4$PNQPOFOU 8*1,4$PNQPOFOU .JTTJOH,4$PNQPOFOU 6TFECZ 8PSLMPBE"1* 4JH"QQT"QQMJDBUJPO ,4 3FTPVSDF#BDLVQ $04* #BDLVQ 3FQPTJUPSZ "QQMJDBUJPO #BDLVQ $POUBJOFS/PUJ fi FS 7PMVNF4OBQTIPU 7PMVNF#BDLVQ

,4ίϯϙʔωϯτ 3FTUPSFʣ 29 1SPDFTT &YJTUJOH,4$PNQPOFOU 8*1,4$PNQPOFOU .JTTJOH,4$PNQPOFOU 6TFECZ *NQPSU #BDLVQ
17$17 3FTUPSF 3FTUPSFGSPN OBUJWFEBUB EVNQ 3FIZESBUF17$GSPN 7PMVNF4OBQTIPU 7PMVNF#BDLVQ /BUJWF :FT /P "QQMJDBUJPO 3FTUPSF $04* ,4 3FTPVSDF 3FTUPSF 7PMVNF4OBQTIPU 7PMVNF#BDLVQ #BDLVQ 3FQPTJUPSZ

ఏҊதͷ,&1 30 ‣ 4UBUFGVM"QQMJDBUJPO%BUB.BOBHFNFOU"1* ,&1 ΞϓϦέʔγϣϯϨϕϧͰͷ4OBQTIPU 3FTUPSF $MPOFͳͲΛఏҊ
$POUBJOFS/PUJ fi FSͳͲଞ,&1Λ༏ઌ͍ͯ͠ΔͨΊΑΓߋ৽ͳ͠ ‣ $POUBJOFS/PUJ fi FS ,&1 Ξοϓσʔτ ΞϓϦͷ੩ࢭԽ 2VJFTDF ղআ 6ORVJFTDF ࣌ͷ௨஌Λड͚όοΫΞοϓΛ࣮ߦ͢ΔϢʔεέʔεͳͲΛ૝ఆ ‣ $POTJTUFOU(SPVQ4OBQTIPU ,&1 σʔλͷ੔߹ੑΛ୲อ͢ΔͨΊෳ਺ͷ17$Λ$POTJTUFOU(SPVQͱͯ͠·ͱΊɺ$POTJTUFOU(SPVQ୯ҐͰ 4OBQTIPU3FTUPSFΛ࣮ݱ ‣ $04* $POUBJOFS0CKFDU4UPSBHF*OUFSGBDF ,&1 ΦϒδΣΫτετϨʔδ޲͚ͷΠϯλʔϑΣʔε "QQMJDBUJPO #BDLVQ "QQMJDBUJPO 3FTUPSF $POUBJOFS/PUJ fi FS 7PMVNF4OBQTIPU ڧԽ $04*

,&1લͷσΟεΧογϣϯ߲໨ 31 ‣ 7PMVNF#BDLVQ 7PMVNFͷϑϧόοΫΞοϓɻετϨʔδͷผᝑମ΁ͷόοΫΞοϓ͕ϝΠϯλʔήοτ ‣ $#5 $IBOHFE#MPDL5SBDLJOH BOE$IBOHFE'JMF-JTU
7PMVNF4OBQTIPUͷมߋࠩ෼ͷ؅ཧɺ   ΦϒδΣΫτετϨʔδ΁ͷόοΫΞοϓ࣌ʹมߋࠩ෼ͷΈର৅ͱ͢ΔϢʔεέʔεΛ૝ఆ 7PMVNF#BDLVQ 7PMVNF4OBQTIPU ڧԽ

·ͱΊ 32 ‣ ίϯςφ͸εςʔτϑϧΞϓϦ͕ۤख 7.ɾίϯςφʹؔΘΒͣεςʔτϨεΞϓϦʹൺ΂εςʔτϑϧΞϓϦ͸େม σʔλಉظͳͲ ΞʔΩςΫνϟ͸γϯϓϧ͔ͭૉ௚ͳੑೳ
ো֐ௐࠪ΍ੑೳઃܭ͸΍Γқ͍ ɹ ‣ ίϯςφͰεςʔτϑϧΞϓϦΛಈ͔͢ͷ͸/(Ͱ͸ͳ͘ɺ   ίϯςφͱ͍͏ୈͷબ୒ࢶ͕ੜ·ΕͨͱݟΔͷ͕٢ ‣ εςʔτϑϧΞϓϦPO,VCFSOFUFT΁௅ઓ͢Δਓ΁τϨΠϧϚοϓΛ঺հ ‣ ࣍ͷεςʔδʹ޲͚ɺ,VCFSOFUFTͷετϨʔδؔ࿈ͷಈ޲Λ঺հ

ステートフルアプリ on Kubernetesの現在と今後の展望

ステートフルアプリ on Kubernetesの現在と今後の展望

Yukinori Sakashita

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εςʔτϑϧΞϓϦPO,VCFSOFUFTͷ   ݱࡏͱࠓޙͷల๬ ʙεςʔτϑϧͷۤखҙࣝΛਧͬඈ͹ͦ͏ʙ :VLJOPSJ4BLBTIJUB

ࣗݾ঺հ ‣ ٕज़ݚڀΤϦΞ ӡ༻؅ཧٕज़ Ϋϥ΢υ αʔόετϨʔδ

"HFOEB ,VCFSOFUFTʹ͓͚ΔετϨʔδͱεςʔτϑϧΞϓϦ εςʔτϑϧΞϓϦPO,VCFSOFUFTͷτϨΠϧϚοϓ ,VCFSOFUFTͷετϨʔδؔ࿈ͷಈ޲ 3

,VCFSOFUFTʹ͓͚Δ   ετϨʔδͱεςʔτϑϧΞϓϦ

εςʔτϑϧΞϓϦͷ෩ධ ‣ ೥ࠒ 7.ͷීٴ࢝Ί ʮ7.ͰεςʔτϑϧΞϓϦ %# Λಈ͔͢ͳΜͯ༗Γಘͳ͍ʯ ‣

εςʔτϑϧΞϓϦͷීٴঢ়گ 6 ग़య$/$'4637&: IUUQTXXXDODGJPXQDPOUFOUVQMPBET$/$'@4VSWFZ@3FQPSU@QEG ‣ ίϯςφʹ͓͚ΔεςʔτϑϧΞϓϦ͸طʹ͕ϓϩμΫγϣϯར༻ ‣ ίϯςφ͕εςʔτϑϧΞϓϦ͕ۤखͱ͍͏࣌୅͸ऴΘͬͨ 88

ίϯςφରԠͷεςʔτϑϧΞϓϦ ‣ .Z42- 1PTUHSF42- $BTTBOESB 3FEJT ͳͲଟ͘ͷεςʔτϑϧΞϓϦ͸   ίϯςφʹରԠ ‣

,VCFSOFUFTͷετϨʔδϞσϧ ‣ ,VCFSOFUFTͰ͸ετϨʔδΛந৅Խ ‣ ϕϯμʔχϡʔτϥϧͳϞσϧ 1FSTJTUFOU7PMVNF$MBJN 1FSTJTUFOU7PMVNF

ίϯςφ·ͰͷϘϦϡʔϜͷύε σΟϨΫτϦ σόΠε EFWTEC EFWTEB ֎෦ετϨʔδ ಺ଂσΟεΫ ίϯςφ NOUEBUB

ϕΞϝλϧɾίϯςφɾ7.ͷൺֱ ϕΞϝλϧ 7. Ծ૝σΟεΫ 7. ύεεϧʔ ίϯςφ ,VCFSOFUFT %FWJDF'JMF 'JMF4ZTUFN

ίϯςφͷੑೳʹؔ͢Δࢀߟ࿦จ ‣ *#."VTUJO3FTFBSDI-BCPSBUPSZͷ   8FT'FMUFS "MFYBOESF'FSSFJSB 3BN3BKBNPOZ +VBO3VCJP͕ൃද ‣

εςʔτϑϧΞϓϦͷӡ༻ ‣ εςʔτϑϧΞϓϦͰ͸7.ɾίϯςφ ,VCFSOFUFT ʹؔΘΒͣ   7PMVNFΛׂΓ౰ͯΔҎ֎ʹ΋ߟ͑ΔϙΠϯτ͋Γ γϟοτμ΢ϯ͢ΔલʹΩϟογϡ্ͷσʔλΛετϨʔδ΁

.Z42-ͷεέʔϧΞ΢τͷྲྀΕ 13 4PVSDF 3FQMJDB 4PVSDF ৽͍͠.Z42-ͷ1PEΛ࡞੒ /FX 4PVSDF

,VCFSOFUFTͰͷ࣮ݱํ๏ ‣ େ͖ͭ͘ͷύλʔϯ ‣ εΫϦϓτԽࣗ͠ಈԽ JOJU$POUBJOFS΍αΠυΧʔίϯςφͳͲͰεΫϦϓτΛ࣮ߦ˞ εΫϦϓτΛ಺แ͠ɺࣄલ࣮ߦ͢ΔίϯςφΠϝʔδΛ࡞੒ ‣

ࣗ཯؅ཧͱ͸ 15 ‣ ೥ॳ಄ʹ*#.͔ࣾΒࣗ཯ίϯϐϡʔςΟϯάͷ֓೦͕ఏএ ‣ ͦͷޙɺࣗ཯ίϯϐϡʔςΟϯάͷ؅ཧํ๏ͱͯࣗ͠཯؅ཧ͕ొ৔ ‣ ࣗ཯ίϯϐϡʔςΟϯά͸ɺਓؒͷࣗ཯ਆܦͷΑ͏ʹίϯϐϡʔλ͕ࣗ཯తʹ   ࣗݾ؅ཧΛߦ͏ߟ͑ํ

ϓϩηεͷՔಇ཰ .5#' ฏۉނোִؒ .553 ฏۉम෮࣌ؒ Քಇ཰Քಇ࣌ؒͷ૯࿨શମ࣌ؒ.5#' .5#' .553

εςʔτϑϧΞϓϦPO,VCFSOFUFT τϨΠϧϚοϓ

τϨΠϧϚοϓ 18 ϑΝΠϧڞ༗ όοΫΞοϓ γϯάϧߏ੒ͷεςʔτϑϧΞϓϦ Ϛϧνߏ੒ͷεςʔτϑϧΞϓϦ

ϑΝΠϧڞ༗ 19 ‣ ·ͣ͸17$17ʹ׳ΕΑ͏ ‣ 17$17Λ࢖ͬͯ1PEؒͰϑΝΠϧΛڞ༗ ྫಉछΞϓϦͰͷϑΝΠϧڞ༗ ྫҟछΞϓϦͰͷϑΝΠϧڞ༗ ྫ։ൃɾσόοΫ༻ͷϑΝΠϧஔ͖৔ 8FC4FSWFS

όοΫΞοϓ 20 ‣ σʔλΛόοΫΞοϓ͢Δํ๏Λ஌Γɺো֐࣌ͳͲͷσʔλϩετʹඋ͑Δ ‣ 7PMVNF4OBQTIPU 7PMVNF$MPOJOHͳͲͷ࢖͍ํͱಛੑΛཧղ ‣ ετϨʔδᝑମ֎΁ͷόοΫΞοϓͱόοΫΞοϓπʔϧΛཧղ ࠩ෼σʔλ

γϯάϧߏ੒ͷεςʔτϑϧΞϓϦ 21 ‣ γϯάϧߏ੒ͷεςʔτϑϧΞϓϦͷڍಈΛ೺Ѳ͢Δ ‣ ΞϓϦͷઃఆํ๏ɺͲͷσʔλΛ17$17Λ࢖ͬͯӬଓԽ͢΂͖͔Λཧղ͠ઃܭ   ΞϓϦຖʹҟͳΔͨΊɺର৅ΞϓϦͷ஌͕ࣝඞཁ ྫγϯάϧߏ੒ͷσʔλϕʔε

0QFSBUPS։ൃʹΑΔࣗ཯؅ཧ 23 TPVSDF SFQMJDB SFQMJDB ɾɾɾ Controller ‣ ࣗ૊৫ͷӡ༻खॱ΍ϊ΢ϋ΢Λ0QFSBUPS΁࣮૷ ‣

,VCFSOFUFTͷ   ετϨʔδؔ࿈ͷಈ޲

ண໨͍ͯ͠Δಈ޲ 25 ‣ *P5ͳͲͷ&EHF؀ڥ޲͚ͷετϨʔδ ‣ ΞϓϦ࿈ܞͷόοΫΞοϓ

&EHF؀ڥ޲͚ͷετϨʔδ 26 ‣ 4%4 4PGUXBSF%F fi OFE4UPSBHF ΛίϯςφԽ͠ɺ,VCFSOFUFT্Ͱ   ಈ࡞ͤ͞Δ,VCFSOFUFT/BUJWF4UPSBHF͕ීٴ

ΞϓϦ࿈ܞͷόοΫΞοϓ 27 ‣ ʹઃཱ͞Εͨ4*(4UPSBHF͔Β೿ੜ͠%BUB1SPUFDUJPO8(͕஀ੜ ‣ ΞϓϦࢹ఺ͰͷόοΫΞοϓʹ͍ͭͯٞ࿦ 6T 6TFS TUBSUT CBDLVQ

,4ίϯϙʔωϯτ #BDLVQʣ 28 %BUB #BDLVQ "QQMJDBUJPO/BUJWF %BUB%VNQ &YQPSU #BDLVQ /BUJWF

,4ίϯϙʔωϯτ 3FTUPSFʣ 29 1SPDFTT &YJTUJOH,4$PNQPOFOU 81,4$PNQPOFOU .JTTJOH,4$PNQPOFOU 6TFECZ NQPSU #BDLVQ

ఏҊதͷ,&1 30 ‣ 4UBUFGVM"QQMJDBUJPO%BUB.BOBHFNFOU"1* ,&1 ΞϓϦέʔγϣϯϨϕϧͰͷ4OBQTIPU 3FTUPSF $MPOFͳͲΛఏҊ

,&1લͷσΟεΧογϣϯ߲໨ 31 ‣ 7PMVNF#BDLVQ 7PMVNFͷϑϧόοΫΞοϓɻετϨʔδͷผᝑମ΁ͷόοΫΞοϓ͕ϝΠϯλʔήοτ ‣ $#5 $IBOHFE#MPDL5SBDLJOH BOE$IBOHFE'JMF-JTU

·ͱΊ 32 ‣ ίϯςφ͸εςʔτϑϧΞϓϦ͕ۤख 7.ɾίϯςφʹؔΘΒͣεςʔτϨεΞϓϦʹൺ΂εςʔτϑϧΞϓϦ͸େม σʔλಉظͳͲ ΞʔΩςΫνϟ͸γϯϓϧ͔ͭૉ௚ͳੑೳ