PHP on Kubernetes - PHP Conference 2020 Re:born #phpcon

https://fortee.jp/phpcon-2020/proposal/1c446197-ff00-4b8a-865f-dff9d63cb2c0

Transcript

1. 1)1$POGFSFODF+BQBO3&CPSO
   1)1PO,VCFSOFUFT
   

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2. ొஃऀ঺հ
   
   
   ▸ Kouta Ozaki
   ▸ Chatwork, YAML Engineer
   

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3. 01
   ·ͱΊ
   

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4. ·ͱΊ
   ,VCFSOFUFTͰ΋ී௨ʹ1)1ಈ͘
   ಛʹ΄͔ʹ͍͏͜ͱ͕ͳ͍͙Β͍ී௨ʹಈ͘
   

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5. ಇ͘Λ΋ͬͱָ͘͠ɺ૑଄తʹ
   

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6. 02
   ,VCFSOFUFTʁ
   

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7. w ෳ਺ͷαʔόʔʹɺෳ਺ͷίϯςφΛྑ͍ײ͡ʹ഑ஔͯ͘͠ΕΔͷ͕ίϯςφΦʔέετϨʔγϣϯ
   w ͦͷதͷσϑΝΫτελϯμʔτͳͷ͕,VCFSOFUFT
   w &,4ɺ(,&ɺ",&ͱ֤छΫϥ΢υͰ,VCFSOFUFTͷϚωʔδυαʔϏε΋ఏڙ͞Ε͍ͯΔ
   Kubernetes?
   ίϯςφΦʔέετϨʔγϣϯπʔϧͷσϑΝΫτελϯμʔυ
   

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8. Kubernetes?
   7.ͱ4FSWFSMFTTͱͷൺֱ
   ىಈ଎౓
   ֶशίετ
   ੍໿
   ߴ
   ௿
   ௿
   த
   ߴ
   த
   ௿
   த
   ߴ
   7. ,VCFSOFUFT 4FSWFSMFTT
   

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9. 03
   1)1ΞϓϦέʔγϣϯͷίϯςφԽ
   

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10. PHPΞϓϦέʔγϣϯͷίϯςφԽ
    ίϯςφͷߏஙํ๏
    ɹFROM php:7.4-fpm
    ɹRUN docker-php-ext-install \
    opcache \
    pdo_mysql \
    && pecl install \
    redis \
    xdebug \
    && docker-php-ext-enable \
    redis
    w %PDLFS)VCެࣜͰ1)1Πϝʔδ͕഑෍͞Ε͍ͯΔ
    w $-*"QBDIF'1.ͳͲ༻్ʹ߹Θͤͯ
    w &YUFOTJPO΍1&$-ͷ௥Ճ΋Մೳ
    w ઃఆϑΝΠϧ͸VTSMPDBMFUDҎԼʹ഑ஔ
    

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11. PHPΞϓϦέʔγϣϯͷίϯςφԽ
    ઃఆͷ஫ೖํ๏
    ؀ڥม਺ ઃఆϑΝΠϧ
    return [
    'param1' => getenv('APP_PARAM1') ?: 'ABC',
    'param2' => getenv('APP_PARAM2') ?: 'DEF',
    ];
    return [
    'param1' => 'ABC',
    'param2' => 'DEF',
    ];
    w ίϯςφىಈ࣌ʹ؀ڥม਺Λࢦఆ͢Δ͚ͩ
    w ؀ڥม਺͕ͳ͚Ε͹ॳظ஋Ͱ͸ͳ͘EJF͢ΔͱΑΓ
    ҆શ
    w ؀ڥม਺͕਺ඦʹͳΔͱΘ͚Θ͔Μͳ͘ͳΔ
    w ίϯςφىಈ࣌ʹϑΝΠϧΛϚ΢ϯτɺ΋͘͠͸
    ؀ڥม਺ͰಡΈࠐΉϑΝΠϧΛ੾Γସ͑
    w ϑΝΠϧ੾Γସ͑ͷ৔߹ɺઃఆΛม͑Δ౓ʹίϯ
    ςφͷϏϧυ͕ඞཁ
    w ઃఆϑΝΠϧͷਖ਼͠͞ΛͲ͏ݕূ͢Δ͔͕伴
    

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12. PHPΞϓϦέʔγϣϯͷίϯςφԽ
    ϩάͷग़ྗํ๏
    use Monolog\Logger;
    use Monolog\Handler\StreamHandler;
    $logger = new Logger('containerlog');
    $logger->pushHandler(new StreamHandler('php://stdout', Logger::DEBUG));
    $logger->info("output log");
    w ίϯςφϩάʹ͸ίϯςφͷϝΠϯϓϩηεͷ45%065ͱ45%&33͕ग़ྗ͞ΕΔ
    w ͦͷͨΊɺΞϓϦέʔγϣϯϩά͸45%06545%&33ʹग़ྗ͢Ε͹0,
    w 45%065ͱ45%&33͸࢖͍෼͚ͯ΋͍͍͚Ͳɺίϯςφϩάͷऩूج൫ʢ'MVFOUEͳͲʣͳͲͰৼ
    Γ෼͚΋͓͜ͳ͑ΔͷͰͦ͜·Ͱͩ͜ΘΒͳͯ͘΋Α͍
    

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13. PHPΞϓϦέʔγϣϯͷίϯςφԽ
    ϩάͷग़ྗํ๏
    error_log = /dev/stderr
    log_errors = On
    log_errors_max_len = 16384
    w 1)1ͷ'BUBMFSSPSͳͲ͸QIQJOJͷFSSPS@MPHͰग़ྗ
    w ͜ͷͱ͖ϩά͸ෳ਺ߦͰग़ྗ͞ΕΔͨΊͲ͔͜ͰϩάΛ݁߹͠ͳ͚Ε͹͍͚ͳ͍͜ͱʹ஫ҙ
    w ϩάͷ௕͞͸QIQJOJͷMPH@FSSPST@NBY@MFOͱQIQGQNDPOGͷMPH@MJNJUͰࢦఆ
    w ͜ΕΑΓ୹͍৔߹͸ϩά͕੾Γ٧ΊΒΕΔ
    w 1)1'1.ͰϩάΛग़͢ͱෆཁͳ઀಄͕ࣙೖΔͷͰEFDPSBUF@XPSLFST@PVUQVUͰΦϑʹ
    w Φϯͩͱ8"3/*/(DIJMETBJEJOUPTUEFSSYYYͱ͍͏Α͏ʹແବʹ௕͍
    log_limit = 16384
    catch_workers_output = yes
    decorate_workers_output = no
    QIQJOJ QIQGQNDPOG
    

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14. 04
    1)1ΞϓϦέʔγϣϯͷ,VCFSOFUFTԽ
    

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15. w ,VCFSOFUFTͷ࠷খ୯Ґ͸1PE
    w 1PEͷதʹͭҎ্ͷίϯςφ͕ೖΔ
    w 1PEͷઃܭ͸1)1Ͱ͸બ୒ࢶ͕͍͔ͭ͋͘Δ
    w "QBDIF
    w /(*/91)1'1.
    w Ұͭͷίϯςφʹ·ͱΊΔ
    w ෳ਺ͷίϯςφʹΘ͚Δ
    w /(*/9*OHSFTT
    1)1ʹ͸1PEͷߏ੒ύλʔϯ͕͍͔ͭ͋͘Δ
    PHPΞϓϦέʔγϣϯͷKubernetesԽ
    

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16. w "QBDIF1)1͸୯ҰίϯςφͰಈ͔ͤΔ
    w ಛʹཧ༝͕ͳ͚Ε͹൪ָ
    PHPΞϓϦέʔγϣϯͷKubernetesԽ
    "QBDIFΛར༻ͨ͠ύλʔϯ
    

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17. w /(*/9'1.ΛҰͭͷίϯςφͰಈ͔ͤΔ
    w %PDLFSϕετϓϥΫςΟεʹҧ൓͍ͯ͠Δ
    w ίϯςφΞϓϦέʔγϣϯ
    w /(*/9ͱ'1.Λ؅ཧ͢Δ4VQFSWJTPSͱ͔ඞཁ
    PHPΞϓϦέʔγϣϯͷKubernetesԽ
    /(*/9ʴ'1.ͰಉҰίϯςφʹͨ͠ύλʔϯ
    

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18. w 1PE಺ͷίϯςφΛ/(*/9ͱ'1.ͰΘ͚ΒΕΔ
    w ιʔείʔυΛͲ͏΍ͬͯಉظ͢Δ͔
    w ͦΕͧΕͷίϯςφʹόϯυϧ
    w JOJU$POUBJOFSͰιʔείʔυΛίϐʔ
    PHPΞϓϦέʔγϣϯͷKubernetesԽ
    /(*/9ʴ'1.Ͱผίϯςφʹͨ͠ύλʔϯ
    

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19. PHPΞϓϦέʔγϣϯͷKubernetesԽ
    /(*/9ʴ'1.Λผ1PEʹͨ͠ύλʔϯ
    w 1PEࣗମΛ/(*/9ͱ'1.ͰΘ͚ΒΕΔ
    w εέʔϧ΍σϓϩΠλΠϛϯάΛͣΒͤΔ
    w ιʔείʔυͷಉظํ๏͕ίϯςφʹόϯυϧͯ͠σϓϩΠλΠϛϯάΛἧ͑Δ͔͠ͳ͍
    

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20. PHPΞϓϦέʔγϣϯͷKubernetesԽ
    /(*/9*OHSFTT1)1'1.Λར༻ͨ͠ύλʔϯ
    w /(*/9*OHSFTT͕'BTU$(*ʹରԠ͍ͯ͠Δ
    w IUUQTHJUIVCDPNLVCFSOFUFTJOHSFTTOHJOY
    w ͪ͜Β΋ιʔείʔυͷಉظ͸՝୊
    w /(*/9*OHSFTTͷੜ੒͢Δ/(*/9ͷઃఆେ͖͍
    w ϓϩμΫγϣϯͰͦͷઃఆΛอक͖͠ΕΔ͔
    w ύλʔϯͷํ͕γϯϓϧ
    

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21. PHPΞϓϦέʔγϣϯͷKubernetesԽ
    ͍͔ͭ͘ͷύλʔϯʹରԠͨ͠1)1$IBSU
    IUUQTHJUIVCDPNDIBUXPSLDIBSUTUSFFNBTUFSQIQ
    

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22. PHPΞϓϦέʔγϣϯͷKubernetesԽ
    1PEͷऴྃॲཧ
    ɹlifecycle:
    ɹɹpreStop:
    exec:
    command:
    - /bin/sh
    - -c
    - sleep 60; kill -QUIT 1; sleep 60
    1PE
    3VOOJOH 5FSNJOBUJOH
    4FSWJDF
    1SF4UPQ
    %FUBDI4FSWJDF
    4*(5&3. 4*(,*--
    UFSNJOBUJPO(SBDF1FSJPE4FDPOET EFGBMUT
    
    pOJTIQSFTUPQ
    UFSNJOBUFQPE
    w ίϯςφͷऴྃॲཧ͸4*(5&3.ͳͷͰQSF4UPQதʹ
    4*(26*5Λૹͬͯ(SBDFq4IVUEPXO͢Δ
    w LJMM͸ඇಉظͳͷͰϦΫΤετͷॲཧ࣌ؒ଴ͭ
    w ऴྃॲཧதʹ4FSWJDF͔Β৽نϦΫΤετ͕ϧʔςΟϯ
    ά͞Εͳ͍Α͏ʹগ͠଴ͭඞ༻͕͋Δ
    

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23. w ,VCFSOFUFTͷϝτϦΫεऩूج൫ͷ1SPNFUIFVT΋ར༻Մೳ
    w "QBDIF&YQPSUFSɺ/(*/9&YQPSUFSɺ1)1'1.&YQPSUFSΛར༻͢Δ͜ͱͰϝτϦΫεΛऩू
    w 1)1Ͱ&YQPSUFSΛ࡞ΔͨΊͷϥΠϒϥϦ΋͋Δ
    w FOEDMPUIJOHQSPNFUIFVT@DMJFOU@QIQ
    w 01$BDIF΍"1$VͷϝτϦΫεͷऩूͱ͔Ͱར༻
    PHPΞϓϦέʔγϣϯͷKubernetesԽ
    &YQPSUFSΛ࢖ͬͨϝτϦΫεͷऩू
    

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24. 05
    ,VCFSOFUFTΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔
    

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25. KubernetesΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔
    1IQ4UPSNͱ9EFCVHPO,VCFSOFUFT
    w 9EFCVH͔Β1IQ4UPSNʹͭͳ͕Ε͹0,
    w %PDLFSGPS.BDͷ৔߹͸EPDLFSGPSNBDMPDBMIPTUͰϗετʹͭͳ͕Δ
    w ϦϞʔτͷ,VCFSOFUFTΫϥελͷ৔߹͸1PE͔Β௨৴Մೳͳঢ়ଶʹ͢Δ
    w 9EFCVHͷೖͬͨ1PE͔Βϗετ΁ૄ௨Մೳʹ͢Ε͹0,
    

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26. w 1IQ4UPSN͸,VCFSOFUFTʹରԠ͍ͯ͠ͳ͍
    w ΋͠ରԠ͢ΔͳΒEPDLFSFYFDΛϥοϓͨ͠QIQίϚϯυΛ༻ҙ͢ΔʢLVCFDUMͰ΋Մʣ
    w ͜ͷϑΝΠϧ΁ͷύεΛ1IQ4UPSNͷ$-**OUFSQSFUFSʹࢦఆ͢Δͱಈ࡞͢Δ
    w ͨͩ͠ɺύεͷϚοϐϯά͸ޮ͔ͳ͍ͷͰϩʔΧϧͱ,VCFSOFUFTͰಉҰͷύεʹ͢Δඞ༻͕͋Δ
    w Ϛ΢ϯτ͢ΔύεΛௐ੔͢ΔͳΓɺMJGFDZDMFQSF4UBSUͰTZNMJOLΛషΔͳΓ
    w ࡞੒ͨ͠ίϚϯυͰύεΛஔ͖׵͑ͯ΋ྑ͍͔΋ʁ
    KubernetesΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔
    1IQ4UPSNͱ1)16OJUPO,VCFSOFUFT
    ɹ#!/bin/sh
    ɹCONTAINER_ID=$(docker ps -f name=php-fpm -q --latest)
    ɹdocker exec $CONTAINER_ID php "$@"
    

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27. KubernetesΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔
    ଞ؀ڥͱͷൺֱ
    6OJU5FTU
    $PNQPTFS
    ॳճىಈ
    NT
    NT
    NT
    NT
    N
    NT
    NT
    N
    NT
    7BHSBOU ,VCFSOFUFT EPDLFSDPNQPTF
    ճ໨ͷىಈ N N N
    

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28. 06
    ·ͱΊ
    

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29. ·ͱΊ
    ,VCFSOFUFTͰ΋ී௨ʹ1)1ಈ͘
    ಛʹ΄͔ʹ͍͏͜ͱ͕ͳ͍͙Β͍ී௨ʹಈ͘
    ֶͨͩ͠शίετ͸ߴ͍
    

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30. ಇ͘Λ΋ͬͱָ͘͠ɺ૑଄తʹ
    

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