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Kubernetes がもたらす 分散システムの脅威との戦い / v18.12 #containerdaysjp

Kodai Sakabe
December 04, 2018

Kubernetes がもたらす 分散システムの脅威との戦い / v18.12 #containerdaysjp

JAPAN CONTAINER DAYS V18.12

https://containerdays.jp/

Kodai Sakabe

December 04, 2018
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  1. ,VCFSOFUFT͕΋ͨΒ͢
    ෼ࢄγεςϜͷڴҖͱͷઓ͍
    Japan Container Days V18.12
    4 Dec 2018
    Wantedly, Inc. | Kodai Sakabe @koudaiii
    1

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  2. ࿩͢͜ͱ
    ͢΂ͯͷϓϩμΫτΛ ,VCFSOFUFT ʹҠߦͤͨ͜͞ͱͰɺ૊৫తมԽ
    ΍෼ࢄγεςϜͷԸܙΛड͚·ͨ͠ɻ͔͠͠ɺ෼ࢄγεςϜʹ͓͚Δ৽
    ͨͳٕज़త՝୊͕ੜ·Ε͖ͯ·ͨ͠ɻ͜ΕΒͷ໰୊ʹରͯ͠Ͳ͏ରॲ͠
    ͍ͯΔ͔ɺ·ͨࠓݱࡏͲ͏ରॲ͠Α͏ͱ͍ͯ͠Δͷ͔Λ͝঺հ͠·͢ɻ
    2
    , V C F S O F U F T ͕ ΋ ͨ Β ͢ ෼ ࢄ γ ε ς Ϝ ͷ ڴ Җ ͱ ͷ ઓ ͍

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  3. $3&"5&
    "803-%8)&3&803,
    %3*7&41"44*0/
    8BOUFEMZ *OD
    3

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  4. 063(0"-4
    8BOUFEMZ *OD
    % J T D P W F S $ P O O F D U
    & O H B H F 4 / 4
    $ S F B U F B X P S M E X I F S F X P S L E S J W F T Q B T T J P O
    4

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  5. X

    5
    8BOUFEMZPO,VCFSOFUFT

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  6. .JDSPTFSWJDFTPO,VCFSOFUFT
    P V S Q S P E V D U J T
    BU8B O U F E M Z * O D

    . J D S P T F S W J D F T

    / P E F T
    ,
    $ P O U B J O F S T


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  7. X
    X
    X
    7
    8 I Z
    ௅ઓͰ͖Δ͜ͱ
    ࣾձతΠϯύΫτΛͩͤΔ͜ͱ
    ϘτϧωοΫ͸ਓͰ͋Δ͜ͱ

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  8. ΞδΣϯμ
    , V C F S O F U F T ͕ ΋ ͨ Β ͢ ෼ ࢄ γ ε ς Ϝ ͷ ڴ Җ ͱ ͷ ઓ ͍
    ,VCFSOFUFTΛ࠷େݯ׆͔ͨ͢Ίʹ૊৫શମͰར༻͢Δ
    ,VCFSOFUFT͕΋ͨΒ͢૊৫ମ੍ͷมԽ
    γϯϓϧ͞ΛఘΊͳ͍ɻ࠷খ୯ҐͰิ͏
    # F O F G J U
    ૿͑ଓ͚ΔϚΠΫϩαʔϏεͷڴҖ
    ,VCFSOFUFTࣗ਎͕෼ࢄγεςϜͰ͋Δ͜ͱͷ֮ޛ
    ෼ࢄίϯϐϡʔςΟϯάͷམͱ݀͠ /FUXPSL͸৴པ͠ͳ͍

    1SPEVDUJPOSFBEZ
    $ I B M M F O H F
    8

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  9. #FOFGJU
    , V C F S O F U F T Λ ࠷ େ ݯ ׆ ͔ ͨ͢ Ί ʹ ૊ ৫ શ ମ Ͱ ར ༻ ͢Δ
    , V C F S O F U F T ͕ ΋ͨ Β͢ ૊ ৫ ମ ੍ ͷ ม Խ
    γ ϯ ϓϧ ͞ Λ ఘ Ί ͳ ͍ɻ ࠷ খ ୯ Ґ Ͱ ิ ͏

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  10. ٕज़తஅઈΛ્ࢭ͢ΔͨΊʹɺ૊৫શମͰ ,VCFSOFUFT Λ༻͍ͯɺ
    େ͖ͳϚγϯϦιʔεΛશһͰڠௐͯ͠ར༻͠·͢ɻϓϩμΫτΛ௒͑
    ͯ૊৫શମͰར༻͢Δ͜ͱͰɺͲ͜ʹॴଐͯ͠΋ "84 ΍ ($1 Λ࢖͏
    ͷͱಉ͡Α͏ʹࣗ෼ͨͪͷϦιʔεʹରͯ͠ίϯςΩετεΠον͕গ
    ͳ͘ར༻Ͱ͖·͢ɻ͜ͷίϯςΩετεΠον͸ɺ͋·Γେ͖ͳ໰୊Ͱ
    ͸ͳ͍Α͏ʹײ͡·͕͢ɺ͔͜͜Βগͣͭࠩ͠෼͕ੜ·Εɺٕज़తஅ
    ઈ ͷ ͖ ͬ ͔ ͚ ʹ ͳ Γ · ͢ɻ ͜ ͷ ٕ ज़ త அ ઈ Λ ્ ࢭ ͢ Δ ͨ Ί ʹ
    ,VCFSOFUFTઐଐͰ؅ཧ͢Δ࢓૊ΈͱνʔϜମ੍͕ඞཁʹͳΓ·͢ɻ
    10
    ૊৫શମͰར༻
    , V C F S O F U F T Λ ࠷ େ ݯ ׆ ͔ ͢

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  11. ૊৫શମͰར༻
    , V C F S O F U F T Λ ࠷ େ ݯ ׆ ͔ ͢
    w શһͰҰͭͷେ͖ͳϚγϯΛѻ͏
    w ίϯςΩετεΠονʹΑΔٕज़తஅઈΛ્ࢭ
    େ ͖ ͳ Ϛ γ ϯ Λ ڠ ௐ ͯ͠ ಈ ͔ ͢
    w \1SPEVDUJPO 2" 4BOECPY^؀ڥ͝ͱʹΫϥελΛӡ༻
    w ϚχϑΣετϑΝΠϧΛଞΫϥελͰͦͷ··֬ೝ
    ૊ ৫ શ ମ Ͱ ࢖ ͏ ͨ Ί ͷ Ϋ ϥελ ͷ ߏ ங
    w ,VCFSOFUFTͷ"ENJOνʔϜ
    w Ϋϥελʹ͓͚ΔJTTVFରԠɺϚχϡΞϧ੔උɺଞͷΤίγεςϜಋೖ
    , V C F S O F U F T Λ ؅ ཧ ͢Δ ࢓ ૊ Έͮ ͘Γ ͱ ମ ੍
    11

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  12. 12
    "84($1
    .POJUPSJOH
    -PBE#BMBODFS
    44-
    "MFSUJOH
    $BQBDJUZ1MBOOJOH
    6TJOH%BUBTFU 6TJOH%BUBTFU
    /FFE"ENJOSPMF
    4FMGPS"VUPNBUJPO
    %PDVNFOU
    $PEF
    3FMFBTF
    1FSGPSNBODF5VOJOH
    $POUJOVPVT%FMJWFSZBOE$POUJOPVT*OUFSHSBUJPO
    $POpH
    %BUBTUPSF $BDIF
    )PTU
    "84($1
    .POJUPSJOH
    -PBE#BMBODFS
    44-
    "MFSUJOH
    $BQBDJUZ1MBOOJOH
    %PDVNFOU
    $PEF
    3FMFBTF
    1FSGPSNBODF5VOJOH
    1BSBNFUFS5VOJOH 1BSBNFUFS5VOJOH
    $POUJOVPVT%FMJWFSZBOE$POUJOPVT*OUFSHSBUJPO
    $POpH
    %BUBTUPSF $BDIF
    )PTU
    8BOUFEMZ7JTJU *OTUBODFCBTF
    8BOUFEMZ1FPQMF ,VCFSOFUFTCBTF

    $POUFYU4XJUDI
    #FGPSF

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  13. 13
    "84($1
    .POJUPSJOH
    -PBE#BMBODFS
    44-
    "MFSUJOH
    $BQBDJUZ1MBOOJOH
    %PDVNFOU
    $PEF
    3FMFBTF
    1FSGPSNBODF5VOJOH
    1BSBNFUFS5VOJOH
    $POUJOVPVT%FMJWFSZBOE$POUJOPVT*OUFSHSBUJPO
    $POpH
    %BUBTUPSF $BDIF
    )PTU
    6TJOH%BUBTFU
    "84($1
    .POJUPSJOH
    -PBE#BMBODFS
    44-
    "MFSUJOH
    $BQBDJUZ1MBOOJOH
    %PDVNFOU
    $PEF
    3FMFBTF
    1FSGPSNBODF5VOJOH
    1BSBNFUFS5VOJOH
    $POUJOVPVT%FMJWFSZBOE$POUJOPVT*OUFSHSBUJPO
    $POpH
    %BUBTUPSF $BDIF
    )PTU
    6TJOH%BUBTFU
    "GUFS
    /FFE"ENJOSPMF
    4FMGPS"VUPNBUJPO
    8BOUFEMZ7JTJU *OTUBODFCBTF
    8BOUFEMZ1FPQMF ,VCFSOFUFTCBTF

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  14. ,VCFSOFUFT ͕΋ͨΒ͢૊৫ମ੍ͷมԽ͸ɺશମ࠷దΛߦ͏૊৫ԣஅ
    ϓϩδΣΫτͷඞཁੑΛײͤ͡͞ΔมԽʹͳΓ·ͨ͠ɻղܾ͍ͨ͠՝୊
    ͷதʹ͸ɺଞνʔϜͰ΋ಉ͘͡ղܾ͍ͨ͠՝୊΍ɺ͋Δڞ௨σʔλΛ࣋
    ͭΞϓϦέʔγϣϯʹରͯ͠աෛՙʹͯ͠͠·͏՝୊౳͋Γ·ͨ͠ɻͦ
    ͷΑ͏ͳ՝୊͸૊৫ԣஅͰऔΓ૊Ήඞཁ͕͋Γ·͢ɻͦ͜Ͱશମ࠷ద
    Λߦ͏Α͏ͳ૊৫ԣஅϓϩδΣΫτΛ ,VCFSOFUFT ͷίϛϡχςΟӡ
    ӦΛࢀߟʹυΩϡϝϯτԽ͍ͯ͠·͢ɻ
    14
    ૊৫ମ੍ͷมԽ
    , V C F S O F U F T ͕ ΋ ͨ Β ͢

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  15. w ೥ʹ͘Β͍৽ϚΠΫϩαʔϏε͕ϩʔϯν
    w *'Λγϯϓϧʹ͢Ε͹͢Δ΄ͲɺࣗવͱҰͭͷ͜ͱʹूத͢Δ
    α ʔ Ϗε ͕ ੜ · Ε ΍ ͢ ͍
    w ෦෼࠷దԽ͕ϝΠϯͩͬͨ΋ͷ͕ɺશମ࠷దʹ΋໨͕ߦ͘
    w Ϣʔβʔ౳ͷڞ௨৘ใɺσʔλ఻ൖͷ࢓૊ΈɺػցֶशFUD
    ૊ ৫ ԣ அ త ͳ ։ ൃ ͕ ߦ Θ Ε Δ
    w ,VCFSOFUFT͸Ͳ͏΍ͬͯ։ൃ͍ͯ͠Δʁ
    w LVCFSOFUFTDPNNVOJUZΛΧελϚΠζ
    8 P S L J O H ( S P V Q T $ P N N J U U F F T 4 * ( T
    15
    IUUQTHJUIVCDPNLVCFSOFUFTDPNNVOJUZUSFFEFEEDDFEBEBGFHPWFSOBODF
    ૊৫ମ੍ͷมԽ
    , V C F S O F U F T ͕ ΋ ͨ Β ͢

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  16. 8PSLJOH(SPVQT
    શ ମ ࠷ ద Λ ߦ ͏
    ͭ ͷ ՝ ୊ Λ ղ ܾ ͢Δͨ Ί ͷ ς ϯϙ
    ϥ Ϧ ʔ ͷ ૊ ৫ ԣ அ ϓϩ δΣ Ϋ τɻ
    % F T J H O 4 Z T U F N 6 T F S T
    4 F S W J D F % B U B Q J Q F M J O F
    F U D
    16
    IUUQDEOIVCTQPUOFUIVCGTPMBSLKVMZ4RVBET$IBQUFST(VJMETJOPOFQBHFHSBGqFQEG

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  17. w ίΞόϦϡʔΛ໌֬ʹ͢Δ
    w ଞͷӨڹΛड͚ͳ͍Α͏ʹ͢Δ
    ί Ξό Ϧϡ ʔ Λ क Δ
    w ʮ༑ୡͷ༑ୡͷ ID Λߴ଎ʹฦ͢ʯʮ໊ࢗը૾Λ៉ྷʹ͢Δʯ౳ʹಛԽ͢Δ
    w ಘҙͳݴޠΛར༻͢Δ
    ٕ ज़ ʹ ͜ ͩ Θ Δ
    w νʔϜن໛֦େ͢Δ෼ɺҰਓ͋ͨΓͷҙࣝ͢Δྔͷ૿ՃΛ཈͑Δ
    w ଞνʔϜͷґଘؔ܎͕ڧ͍΄Ͳ೉͘͠ɺௐ੔ͱશମͷ೺ѲͰେมʹͳΔ
    ٯ ί ϯ ΢Σ ΠΛ ى ͜ ͠ ɺ εέ ʔϧͰ ͖ Δ ૊ ৫ ʹ ͳΔ
    17
    8IZ.JDSPTFSWJDFT
    Ϛ Π Ϋ ϩ α ʔ Ϗ ε Λ ਐ Ί Δ ཧ ༝

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  18. ,VCFSOFUFT ͷֶशίετ͸ߴ͍ͨΊɺඞཁͳ΋ͷΛݟۃΊֶͯशί
    ε τ Λ ্ ͛ͳ ͍ Α ͏ ʹ͠ɺ ଍ Γͳ ͍ ΋ ͷ ͸ ࠷ খ ୯ Ґ Ͱ ิ ͍ · ͢ɻ
    ,VCFSOFUFT ಋೖ͸ɺ৽͘͠ΠϯϑϥʹϨΠϠʔΛ௥Ճ͢Δ͜ͱͰ͋
    ΓɺෳࡶʹͳΓ·͢ɻ͞Βʹɺ4QJOOBLFSͷΑ͏ͳ,VCFSOFUFTʹؔ
    ΘΔΤίγεςϜ͸ɺಋೖ͢Δ෼ֶ͚ͩशίετ্͕͕Γ·͢ɻղܾ͠
    ͍ͨ՝୊ʹରͯ͠ద੾ͳείʔϓൣғͷπʔϧ͕ͳ͍৔߹͸ɺͦΕͩ
    ͚Λߦ͏πʔϧ࡞੒Λݕ౼͠·͢ɻ
    18
    ࠷খ୯ҐͰิ͏
    γ ϯ ϓ ϧ ͞ Λ ఘ Ί ͳ ͍

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  19. ࠷খ୯ҐͰิ͏
    γ ϯ ϓ ϧ ͞ Λ ఘ Ί ͳ ͍
    w ࠷େͷཧ༝͸ɺݱ࣌఺ͰEFQMPZGMPX͕·ͩγϯϓϧͷͨΊ
    w EFWFMPQFS͔ΒΈͯLVCFDUM͸࢖͍ʹ͍ͨ͘ΊɺखΛՃ͑ͯར༻
    ࿩ ୊ ʹ ͳΔ ͕ ͍ ͭ ΋ ಋ ೖ ͞ Ε ͳ ͍ 4 Q J O O B L F S
    w $BQJTUSBOP΍)FSPLVͷ$-*͸EFWFMPQFS޲͚ͱͯ͠Θ͔Γ΍͍͢
    w LVCFDUM͸ɺPQT޲͚ͷίϚϯυ͕ଟ͗͢Δ
    L V C F D U M Λ গ ͠ X S B Q
    w 3#"$ͱ(JU)VCͷ5FBNTΛ࢖ͬͨೝՄͷ࢓૊Έ
    w XBOUFEMZHFONPOΛ৽نͰ࡞ͬͨ
    ਓ ʹ ର ͢Δ ݖ ݶ ؅ ཧ ͸ ɺ ਓ Λ ؅ ཧ ͢Δ ν ʔϜͰ ߦ ͏ ΄ ͏ ͕ γ ϯ ϓϧ
    19
    IUUQTTQFBLFSEFDLDPNQPUTCPHJUIVCBTBOBVUIFOUJDBUPS

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  20. ྫHFONPO
    8 F C I P P L " V U I F O U J D B U J P O
    ( J U ) V C ͷ 5F B N T ͸ ί ʔ ϙ Ϩ ʔ
    τ ʹ ͯ ؅ ཧ ͞ Εͯ ͍ Δɻ ೋ ॏ ؅ ཧ Λ
    ͞ ͚Δͨ Ί ʹ ( J U ) V C ͷ 5F B N T
    Λ ࢖ ͬͯ , V C F S O F U F T ͷ ૢ ࡞ Λ
    ߦ ͏ Α ͏ ʹ ͨ͠ Β ద ੾ ʹ ݖ ݶ ؅ ཧ Ͱ
    ͖ Δ ͷ Ͱ ͸ ʁ ͱ ͍ ͏ γ ϯϓϧ ͳ ΞΠ
    σΟ Ξ ͔ Β ੜ · Ε ͨ ɻ
    20
    IUUQTTQFBLFSEFDLDPNQPUTCPHJUIVCBTBOBVUIFOUJDBUPS

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  21. $IBMMFOHF
    ૿ ͑ ଓ ͚ΔϚΠΫ ϩ α ʔ Ϗε ͷ ڴ Җ
    , V C F S O F U F T ࣗ ମ ͕ ෼ ࢄ γεςϜͰ͋ Δ ͜ ͱ ͷ ֮ ޛ
    ෼ ࢄ ί ϯ ϐϡ ʔ ςΟ ϯ άͷ མ ͱ ͠ ݀ / F U X P S L Λ ৴ པ ͠ ͳ ͍

    1 S P E V D U J P O S F B E Z

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  22. ϚΠΫϩαʔϏεʹ͓͚ΔʮҰ؏ੑͷ͋Δج൫ͷҡ࣋ʯʮωοτϫʔΫ
    Τϥʔʯʮ%BUBTUPSF ϘτϧωοΫ໰୊ʯʮσʔλͷ఻ൖ 1VC4VC
    ϝοηʔδϯά
    ʯ౳ɺ৽͍͠՝୊͕ग़͖ͯ·͢ɻϚΠΫϩαʔϏεͷ
    ྑ͍ϓϥΫςΟεΛڞ༗͢Δ͜ͱ͸࿙Ε΍͘͢ɺҰ؏ੑ͋Δج൫Λҡ࣋
    ͢Δ͜ͱ͕೉͍͠Ͱ͢ɻ·ͨ֬཰తʹى͖ΔωοτϫʔΫΤϥʔ΍
    %BUBTUPSF ͕ϘτϧωοΫͰ͋ͬͨΓɺσʔλมߋͷ௨஌ΛͲ͏ड͚
    औΔ͔౳ͷ৽͍͠՝୊͕ݟ͖͑ͯ·͢ɻ
    22
    ૿͑ଓ͚ΔϚΠΫϩαʔϏεͷڴҖ

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  23. ૿͑ଓ͚ΔϚΠΫϩαʔϏεͷڴҖ
    w "1. MPH ΩϟύγςΟϓϥϯχϯά &YDFQUJPO/PUJGJDBUJPO ࢮ׆؂ࢹ
    w DSPTTDVUUJOHBTQFDUTͳ΋ͷΛڞ௨ϥΠϒϥϦͱͯ͠֎ग़͠
    w 'BVMU*TPMBUJPOରࡦ͕ൈ͚͕ͪʹͳΔ
    w 5IVOEFSJOH)FSE΍Χεέʔυো֐ʹͳΒͳ͍Α͏ʹରࡦ΋ඞཁɻ
    ' B V M U * T P M B U J P O
    w Ұ؏ੑ͋Δσʔλͱج൫ͷҡ࣋͸೉͍͠
    w /FUXPSL %BUBTUPSF σʔλͷ఻ൖ 1VC4VCϝοηʔδϯά

    Ұ ؏ ੑ ͷ ೉ ͠ ͞ͱ ৽ ͨ ͳ ٕ ज़ ෼ ໺
    23
    IUUQMBCTDZCP[VDPKQCMPHLB[VIPBSDIJWFTDBDIF@BOE@UIVOEFSJOH@IFSEQIQ

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  24. ,VCFSOFUFT ࣗମ͕෼ࢄγεςϜͷͨΊɺ͍Ζ͍Ζίϯϙʔωϯτ͕
    ඇಉظͰॲཧ͕ߦΘΕ·͢ɻ࢖͍ํʹΑͬͯ͸େ͖͘໰୊ʹͳΔ͜ͱ΋
    ͋Γ·͢ɻͦͷͨΊ ,VCFSOFUFT Λ࢝ΊΔʹ͋ͨͬͯϚωʔδυαʔ
    ϏεͰ؅ཧऀෆཁͩͱࢥͬͯ΋ɺ,VCFSOFUFT ઐ೚୲౰͕͍ͳ͍ͱӡ
    ༻͸೉͍͠Ͱ͢ɻ
    24
    Kubernetes ࣗମ͕෼ࢄγεςϜͰ͋Δ͜ͱͷ֮ޛ

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  25. w QPEͷUFSNJOBUJOH࣌ʹΞΫηε͕དྷ͍ͯΔ໰୊
    w TFSWJDF੾Γ཭͠ॲཧͱUFSNJOBUFॲཧ͸ඇಉظͰ͋Δ
    ඇ ಉ ظ Ͱ͋ Δ ͜ ͱ
    w WͰNBTUFSͷ࠶ىಈ࣌ʹෳ਺ͷ/PEF͕ಥવ/PU3FBEZʹͳΔ
    w 'JYFEWWW
    Ϋ ϥελ ͷ / P E F ͕ / P U 3 F B E Z ʹ ͳ Γɺ 1 P E ͕ Ұ ੪ ࠶ ى ಈ
    w ͜ͷଞʹHFUBEESJOGP΍DPOOFDUJPOSFGVTFE౳
    w Ұ෦ͷQPEͰ͋ΔಛఆͷϦΫΤετ͕ःஅ
    ઐ ೚ ʹ ۙ ͍ ܗ Ͱ ௐ ࠪ ͢Δ ਓ ͕ ͍ ͳ ͍ ͱ ͳ ͔ ͳ ͔ ӡ ༻ ͯ͠ ͍ ͘ ͷ ͸ ೉ ͠ ͍
    25
    Kubernetes ࣗମ͕෼ࢄγεςϜͰ͋Δ͜ͱͷ֮ޛ
    IUUQTHJUIVCDPNLVCFSOFUFTLVCFSOFUFTJTTVFT

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  26. 3FQMJDBUJPO$POUSPMMFSEFMFUFTQPE
    1PEJTNBSLFEBT5FSNJOBUJOH
    ,VCFMFUPCTFSWFTUIBUDIBOHFBOETFOET4*(5&3.
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  27. 27
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  28. ϚΠΫϩαʔϏε͕૿͑ΔதͰɺҰఆͷׂ߹ͰωοτϫʔΫʹىҼ͢Δ
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  29. w αʔϏεؒͷσόοάʹ෼ࢄτϨʔγϯάͱߏ଄తͳϩάऔಘ
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    29
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  30. NJDSPTFSWJDFTΛ͸͡Ίͯɺ਺೥ޙʹ͜ͷ༗໊ͳ໰୊ʹग़ձ͏͜ͱʹͳΔɻ
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    Fallacies of Distributed Computing Explained
    ෼ ࢄ ί ϯ ϐ ϡ ʔ ς Ο ϯ ά ͷ མ ͱ ͠ ݀
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  32. /FYU(FOFSBUJPOPG.JDSPTFSWJDFT
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  33. 8F$IBUNJDSPTFSWJDFT
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    IUUQTXXXDTDPMVNCJBFEVdSVJHVQBQFSTTPDDpOBMQEG

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    34
    IUUQTXXXEBUBEPHIRDPNBQN

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  35. 5JNFMJOFTBU4DBMF
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    IUUQTXXXTMJEFTIBSFOFUNBSJBOPSBGpLSJLPSJBOUXJUUFSUJNFMJOFTBUTDBMF

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  36. ৽͘͠ΤίγεςϜΛಋೖ͢ΔࡍʹɺԾઆݕূͱϦʔϯͰߦ͍·͕͢ɺ
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    1SPEVDUJPOSFBEZ
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  37. 1SPEVDUJPOSFBEZ
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    37
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  38. 4VNNBSZ
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  39. ࿩͢͜ͱ
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    , V C F S O F U F T ͕ ΋ ͨ Β ͢ ෼ ࢄ γ ε ς Ϝ ͷ ڴ Җ ͱ ͷ ઓ ͍

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  40. X
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  41. X
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    W e a r e H i r i n g !
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