次世代のコンテナランタイム！？gVisorのコードを読みながら理解してみる

Copyright© 2018 Flatt Inc. All rights reserved. - - 2
ࣗݾ঺հ

ࣗݾ঺հ - - 3 Copyright© 2018 Flatt Inc. All rights
reserved. @niconegoto Ҫख߁و 'MBUU *OD$&0 4UVEFOUPG6OJWFSTJUZPG5PLZP

reserved. Ͱ̍प೥ʜʂʂ

H7JTPSͱ͸Կ͔

H7JTPSͱ͸Կ͔ - - 6 Copyright© 2018 Flatt Inc. All rights
reserved. (PPHMFͷج൫ٕज़Ά͍ʜ ࡉ͔͍͜ͱ͸࿦จ͕Λ଴͍͕ͪͨݱ ࣌఺Ͱ൑໌͍ͯ͠Δ෦෼ʹ͍ͭͯࠓ ೔͸ѻ͏ ࣌୅͕΍ͬͱ (PPHMFʹ௥͍ ͍͖͔ͭͯͨ

reserved. +BWB/PEF༻ͷ৽͍͠("&͸ H7JTPS্Ͱಈ͍͍ͯΔ 7FSNB "CIJTIFL FUBM-BSHFTDBMFDMVTUFS NBOBHFNFOUBU(PPHMFXJUI#PSH1SPDFFEJOHTPG UIF5FOUI&VSPQFBO$POGFSFODFPO$PNQVUFS 4ZTUFNT"$. #PSHͷ࿦จ΋ͥͻ

reserved. H7JTPSJTBVTFSTQBDFLFSOFM XSJUUFOJO(P UIBUJNQMFNFOUTB TVCTUBOUJBMQPSUJPOPGUIF-JOVYTZTUFNTVSGBDF*UJODMVEFTBO0QFO $POUBJOFS*OJUJBUJWF 0$* SVOUJNFDBMMFESVOTDUIBUQSPWJEFTBO JTPMBUJPOCPVOEBSZCFUXFFOUIFBQQMJDBUJPOBOEUIFIPTULFSOFM 5IFSVOTDSVOUJNFJOUFHSBUFTXJUI%PDLFSBOE,VCFSOFUFT NBLJOHJU TJNQMFUPSVOTBOECPYFEDPOUBJOFST

reserved.

reserved. ϢʔβʔΞϓϦέʔγϣϯ ΦʔέετϨʔγϣϯ LVCFSOFUFT౳ ߴҐϥϯλΠϜ DPOUBJOFSE౳ ௿ҐϥϯλΠϜ SVOD౳ Χʔωϧ 7. ϋʔυ΢ΤΞ ^

reserved. 0QFO$POUBJOFS*OJUJBUJWF 0$* %PDLFSΛখ͞ͳ࠶ར༻Մೳͳίϯϙʔωϯτ ʹ෼ղ͢ΔͨΊʹSVOD΍DPOUBJOFSE͕ಋೖ ϗετΧʔωϧͱͷ෼཭ʹΑͬͯSVODΛΑΓ ηΩϡΞʹ࣮ߦͤ͞Α͏ͱ͍ͯ͠Δͷ͕SVOTD

reserved. ैདྷͷίϯςφٕज़Ͱ͸୯ҰͷϗετΧʔ ωϧΛ࢖༻͢Δ͜ͱʹΑͬͯޮ཰ੑͱύ ϑΥʔϚϯεΛ޲্ͤͨ͞ɻ ҰํͰɺ୯Ұͷ੬ऑੑ͔Βϗετ͕߈ܸ͞ Εͯ͠·͏ͱ͍͏ܽ఺͕ɻ FY  ϗετͷϑΝΠϧγεςϜΛϚ΢ϯτ͞Εͯ͠·͏όά  $7&

ϗετΧʔωϧͱͷ෼཭

ϗετΧʔωϧͱͷ෼཭ - - 15 Copyright© 2018 Flatt Inc. All rights
reserved. ओͳख๏͸ͭ H7JTPS w ϚγϯϨϕϧԾ૝Խ .BDIJOFMFWFMWJSUVBMJ[BUJPO w ϧʔϧʹج࣮ͮ͘ߦ 3VMFCBTFEFYFDVUJPO w H7JTPS

ϗετΧʔωϧͱͷ෼཭ .BDIJOFMFWFMWJSUVBMJ[BUJPO - - 16 Copyright© 2018 Flatt Inc. All
rights reserved. FY,7.΍9FO Ծ૝ϚγϯϞχλʢ7..ʣΛհͯ͠Ծ ૝Խ͞Εͨϋʔυ΢ΣΞΛήετΧʔ ωϧʹެ։͢Δ ΊͬͪΌ4FDVSF͕ͩΦʔόʔϔου ͕େ͖͍ʜύϑΥʔϚϯεͷ௿Լ

ϗετΧʔωϧͱͷ෼཭ 3VMFCBTFEFYFDVUJPO - - 17 Copyright© 2018 Flatt Inc. All
rights reserved. FYTFDDPNQɺ4&-JOVYɺ"QQ"SNPS ΞϓϦέʔγϣϯ·ͨ͸ίϯςφͷࡉ͔͍ηΩϡ ϦςΟϙϦγʔΛࢦఆͰ͖Δ ͔ͬ͠ΓఆٛͰ͖Ε͹ޮՌత͕ͩɺॳݟͷΞϓϦ έʔγϣϯͰ׬ᘳͳϙϦγʔఆٛΛߦ͏͜ͱ͸࣮ ࣭ෆՄೳͳͷͰ෇Ճతʹ࢖ΘΕΔ

ϗετΧʔωϧͱͷ෼཭ H7JTPS - - 18 Copyright© 2018 Flatt Inc. All
rights reserved. ϢʔβʔۭؒͰήετΧʔωϧͱͯ͠ ػೳ͢Δ 7..ͱಉ༷ʹΞϓϦέʔγϣϯ͸γ εςϜίʔϧΛ௚઀੍ޚෆՄೳ  3VMFCBTFEFYFDVUJPO΋࢖༻Մೳ

rights reserved. ΞϓϦέʔγϣϯͷγεςϜίʔϧΛΠϯ λʔηϓτ QUSBDF γεςϜίʔϧΛϑΟϧλʔ੍ͯ͠ݶ TFDDPNQ γεςϜίʔϧΛஔ׵ H7JTPS

rights reserved. ίϯςφϥϯλΠϜ΍ΦʔέετϨʔλΛ ඇSPPUͰಈ͔͢ྲྀΕ͸Ҏલ͔Β͋ΓɺSVOD ͸೥͔ΒSPPUMFTTΛ࠾༻͍͕ͯͨ͠ ϢʔβʔۭؒͰͷ࣮ߦ͕Ͱ͖ͳ͔ͬͨ

rights reserved. 4FOUSZϓϩηε͸ήετΧʔωϧΛؚΈɺ TFDDPNQʹΑΔγεςϜίʔϧͷ੍ݶ΍Ϣʔ βίʔυͷ࣮ߦͱγεςϜίʔϧͷॲཧΛ ୲౰ αϯυϘοΫεΛӽ͑ͨϑΝΠϧγες Ϝૢ࡞͸ɺ1 1MBO'JMFTZTUFN 1SPUPDPM ઀ଓΛհͯ͠(PGFSͱݺ͹ΕΔ ϓϩΩγʹૹΓɺ୅ΘΓʹϑΝΠϧૢ࡞ Λߦ͏ H7JTPSίϯςφϥϯλΠϜ͸ͭͷผʑͷϓϩηεʹ෼ׂ͞ΕΔ

rights reserved. ΞϓϦέʔγϣϯʹ୅ΘͬͯϗετϑΝΠϧΛ։͖ɺ ϗετϑΝΠϧΞΫηεࣗମΛ࣋ͨͳ͍4FOUSZϓϩ ηεʹ౉͢͜ͱʹΑͬͯɺϑΝΠϧγεςϜͷϓϩΩ γͱͯ͠ػೳ  (PGFS 4FOUSZ͸ۭͷϢʔβʔۭؒͰ࣮ߦ͞ΕɺH7JTPSʹ ΑͬͯߦΘΕͨγεςϜίʔϧ͸TFDDPNQϑΟϧ λΛ࢖༻ͯ͠ݫ֨ʹ੍ݶ͞ΕΔ

rights reserved. 4FOUSZ͸ɺجຊతͳίϯςΩετεΠο νͱϝϞϦϚοϐϯάػೳΛ࣮૷͢Δ ϓϥοτϑΥʔϜΛඞཁͱ͍ͯͯ͠ɺ ݱࡏ͸1USBDFͱ,7.Λαϙʔτ ,7. ͸ࢼݧత 4FOUSZ

rights reserved. ɾ1USBDFϓϥοτϑΥʔϜ͸ɺ153"$&@4:4&.6 Λ࢖༻ͯ͠ɺϗετγεςϜίʔϧΛ࣮ߦͤͣʹϢʔ βʔίʔυΛ࣮ߦ ɾQUSBDF͕ಈ࡞͢Δ೚ҙͷ৔ॴͰ࣮ߦՄೳ ɾQUSBDFͷύϑΥʔϚϯε͕͋͋͋͋͋͋ 4FOUSZ

rights reserved. ɾ,7.ϓϥοτϑΥʔϜʹΑͬͯ4FOUSZ͸ήετ04 ͱ7.. 7JSUVBM.BDIJOF.POJUPS ͷ྆ํͱͯ͠ػ ೳ͠ɺͦΕΒΛγʔϜϨεʹ੾Γସ͑Δ͜ͱ͕Մೳ ɾ࠷৽ͷϓϩηοαͰ࢖༻Ͱ͖ΔԾ૝Խ֦ுػೳ Λ׆༻͢Δ͜ͱʹΑͬͯɺΞυϨεۭؒεΠον ͷ෼཭ੑͱύϑΥʔϚϯεΛ޲্ 4FOUSZ

rights reserved. 4FOUSZ͸(PͰ࣮૷͞ΕͨOFUTUBDLͱ͍͏ಠࣗͷωοτϫʔΫελο ΫΛ࣮૷͍ͯ͠Δ ωοτϫʔΫΞΫηε HJUIVCDPNHPPHMFOFUTUBDL ωοτϫʔΫελοΫ 5$1ͷ઀ଓঢ়ଶɺ੍ޚϝοηʔδɺύέοτ ΞηϯϒϦͳͲ ͸શͯ4FOUSZ಺෦Ͱॲཧ͞Εɺϗετͷωοτϫʔ ΫελοΫ͔Βִ཭͞ΕΔ σʔλϦϯΫ૚ͷύέοτ͸ɺ%PDLFS·ͨ͸,VCFSOFUFTʹΑͬͯ ઃఆ͞ΕͨωʔϜεϖʔε಺ͷԾ૝σόΠεʹ௚઀ॻ͖ࠐ·ΕΔ

rights reserved. ैདྷͷϋʔυ΢ΣΞ΋Ծ૝Խ͢Δ४Ծ૝ԽΑΓ͸ܰྔͩ͠ɺ γεςϜίʔϧͷ࢖༻Λېࢭ͢ΔΑΓ͸޿͍΋ͷΛಈ͔ͤΔ H7JTPS͸QUSBDF͕ϘτϧωοΫͱͳΓγεςϜίʔϧͷෛՙͷ େ͖͍ϫʔΫϩʔυͷύϑΥʔϚϯε͕௿Լ͢ΔՄೳੑ͕͋Δ ؆୯ͳ·ͱΊ ϝϞϦͱܕ҆શͷͨΊʹ໿ສߦͷ(PͰ࣮૷͞Ε͍ͯΔʜʂʂʂ

ίʔυΛܰ͘ಡΜͰΈΔ

ίʔυΛܰ͘ಡΜͰΈΔ - - 29 Copyright© 2018 Flatt Inc. All rights
reserved. ΞϓϦέʔγϣϯͷγεςϜίʔϧΛΠϯ λʔηϓτ QUSBDF γεςϜίʔϧΛϑΟϧλʔ੍ͯ͠ݶ TFDDPNQ γεςϜίʔϧΛஔ׵ H7JTPS

HJUIVCDPNHPPHMFHWJTPSQLHTFOUSZ ίʔυΛܰ͘ಡΜͰΈΔ 4FOUSZʹؔ͢Δ࣮૷͕·ͱ·͍ͬͯΔ ॏ͍

ίʔυΛܰ͘ಡΜͰΈΔ IUUQTHJUIVCDPNHPPHMFHWJTPSQLHTFOUSZLFSOFMUBTL@SVOHP UBTL3VO4UBUFFYFDVUF͕OJMΛฦͨ͠ ৔߹ɺλεΫͷHPSPVUJOF͸ఀࢭΛ֬ ೝͤͣʹऴྃͤ͞Δ

ίʔυΛܰ͘ಡΜͰΈΔ IUUQTHJUIVCDPNHPPHMFHWJTPSQLHTFOUSZLFSOFMUBTL@SVOHP

ίʔυΛܰ͘ಡΜͰΈΔ IUUQTHJUIVCDPNHPPHMFHWJTPSQLHTFOUSZLFSOFMUBTL@TZTDBMMHP

IUUQTHJUIVCDPNHPPHMFHWJTPSQLHTFOUSZLFSOFMTFDDPNQHP- ίʔυΛܰ͘ಡΜͰΈΔ

HJUIVCDPNHPPHMFHWJTPSQLHTFOUSZGT ίʔυΛܰ͘ಡΜͰΈΔ -JOVYԾ૝ϑΝΠϧγεςϜͷ࣮૷

IUUQTHJUIVCDPNHPPHMFHWJTPSQLHTFOUSZGTJOPEFHP ίʔυΛܰ͘ಡΜͰΈΔ *OPEF  ϑΝΠϧγεςϜ্ͷϑΝΠϧͷ ΩϟογϡϏϡʔʢϝλσʔλͱ ϖʔδΩϟογϡΛؚΉʣΛอ࣋ ͢ΔԾ૝ϑΝΠϧΦϒδΣΫτ

IUUQTHJUIVCDPNHPPHMFHWJTPSQLHTFOUSZGTEJSFOUHP-d ίʔυΛܰ͘ಡΜͰΈΔ %JSFOU  ϝϞϦ಺ͷGT*OPEFΛ7'4಺ͷύ εʹΩϟογϡ͠ɺGT*OPEFʹ ଞͷGT*OPEFʹରͯ͠૬ରҐஔΛ ༩͑Δ

ίʔυΛܰ͘ಡΜͰΈΔ GT'JMFGT%JSFOUGT*OPEFGT.PVOUFE'JMFTZTUFN ϑΝΠϧΛΦʔϓϯ͢ΔࡍɺGT'JMF͸ϑΝΠϧγεςϜΦϒδΣΫτΛҎԼͷ༷ʹࢀর

ίʔυΛܰ͘ಡΜͰΈΔ ॏ͍Ͱ͕͢ ͥͻօ͞Μ΋ಡΜͰΈ͍ͯͩ͘͞

͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠

reserved. @niconegoto Ҫख߁و 'MBUU *OD$&0 4UVEFOUPG6OJWFSTJUZPG5PLZP

次世代のコンテナランタイム！？gVisorのコードを読みながら理解してみる

次世代のコンテナランタイム！？gVisorのコードを読みながら理解してみる

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