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

Transcript

1. 1)1
   $POGFSFODF
   +BQBO
   
   3&CPSO 1)1
   PO
   ,VCFSOFUFT

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

3. 01 ·ͱΊ

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

5. ಇ͘Λ΋ͬͱָ͘͠ɺ૑଄తʹ

6. 02 ,VCFSOFUFTʁ

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

8. Kubernetes? 7.ͱ4FSWFSMFTTͱͷൺֱ ىಈ଎౓ ֶशίετ ੍໿ ߴ ௿ ௿ த ߴ

   த ௿ த ߴ 7. ,VCFSOFUFT 4FSWFSMFTT

9. 03 1)1ΞϓϦέʔγϣϯͷίϯςφԽ

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

11. PHPΞϓϦέʔγϣϯͷίϯςφԽ ઃఆͷ஫ೖํ๏ ؀ڥม਺ ઃఆϑΝΠϧ <?php return [ 'param1' => getenv('APP_PARAM1')

    ?: 'ABC', 'param2' => getenv('APP_PARAM2') ?: 'DEF', ]; <?php 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

12. PHPΞϓϦέʔγϣϯͷίϯςφԽ ϩάͷग़ྗํ๏ <?php 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

13. PHPΞϓϦέʔγϣϯͷίϯςφԽ ϩάͷग़ྗํ๏ error_log = /dev/stderr log_errors = On log_errors_max_len =

    16384 w 1)1ͷ'BUBM
    FSSPSͳͲ͸QIQJOJͷFSSPS@MPHͰग़ྗ
    w ͜ͷͱ͖ϩά͸ෳ਺ߦͰग़ྗ͞ΕΔͨΊͲ͔͜ͰϩάΛ݁߹͠ͳ͚Ε͹͍͚ͳ͍͜ͱʹ஫ҙ
    w ϩάͷ௕͞͸QIQJOJͷMPH@FSSPST@NBY@MFOͱQIQGQNDPOGͷMPH@MJNJUͰࢦఆ
    w ͜ΕΑΓ୹͍৔߹͸ϩά͕੾Γ٧ΊΒΕΔ
    w 1)1'1.ͰϩάΛग़͢ͱෆཁͳ઀಄͕ࣙೖΔͷͰ
    EFDPSBUF@XPSLFST@PVUQVUͰΦϑʹ
    w Φϯͩͱ
    8"3/*/(
    <QPPM
    XXX>
    DIJME
    
    TBJE
    JOUP
    TUEFSS
    YYY
    ͱ͍͏Α͏ʹແବʹ௕͍ log_limit = 16384 catch_workers_output = yes decorate_workers_output = no QIQJOJ QIQGQNDPOG

14. 04 1)1ΞϓϦέʔγϣϯͷ,VCFSOFUFTԽ

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

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

17. w /(*/9 '1.ΛҰͭͷίϯςφͰಈ͔ͤΔ
    w %PDLFSϕετϓϥΫςΟεʹҧ൓͍ͯ͠Δ
    w ίϯςφ
    
    ΞϓϦέʔγϣϯ
    w /(*/9ͱ'1.Λ؅ཧ͢Δ4VQFSWJTPSͱ͔ඞཁ PHPΞϓϦέʔγϣϯͷKubernetesԽ

    
    /(*/9ʴ'1.ͰಉҰίϯςφʹͨ͠ύλʔϯ

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

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

20. PHPΞϓϦέʔγϣϯͷKubernetesԽ 
    /(*/9
    *OHSFTT
    
    1)1'1.Λར༻ͨ͠ύλʔϯ w /(*/9
    *OHSFTT͕'BTU$(*ʹରԠ͍ͯ͠Δ
    w IUUQTHJUIVCDPNLVCFSOFUFTJOHSFTTOHJOY
    w ͪ͜Β΋ιʔείʔυͷಉظ͸՝୊
    w

    /(*/9
    *OHSFTTͷੜ੒͢Δ/(*/9ͷઃఆେ͖͍
    w ϓϩμΫγϣϯͰͦͷઃఆΛอक͖͠ΕΔ͔
    w ύλʔϯͷํ͕γϯϓϧ

21. PHPΞϓϦέʔγϣϯͷKubernetesԽ ͍͔ͭ͘ͷύλʔϯʹରԠͨ͠1)1
    $IBSU IUUQTHJUIVCDPNDIBUXPSLDIBSUTUSFFNBTUFSQIQ

22. PHPΞϓϦέʔγϣϯͷKubernetesԽ 1PEͷऴྃॲཧ ɹlifecycle: ɹɹpreStop: exec: command: - /bin/sh - -c

    - sleep 60; kill -QUIT 1; sleep 60 1PE 3VOOJOH 5FSNJOBUJOH 4FSWJDF 1SF
    4UPQ %FUBDI
    4FSWJDF 4*(5&3. 4*(,*-- UFSNJOBUJPO(SBDF1FSJPE4FDPOET EFGBMU
    T pOJTI
    QSF
    TUPQ UFSNJOBUF
    QPE w ίϯςφͷऴྃॲཧ͸4*(5&3.ͳͷͰQSF4UPQதʹ 4*(26*5Λૹͬͯ(SBDFq
    4IVUEPXO͢Δ
    w LJMM͸ඇಉظͳͷͰϦΫΤετͷॲཧ࣌ؒ଴ͭ
    w ऴྃॲཧதʹ4FSWJDF͔Β৽نϦΫΤετ͕ϧʔςΟϯ ά͞Εͳ͍Α͏ʹগ͠଴ͭඞ༻͕͋Δ

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

24. 05 ,VCFSOFUFTΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔

25. KubernetesΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔ 1IQ4UPSNͱ9EFCVH
    PO
    ,VCFSOFUFT w 9EFCVH͔Β1IQ4UPSNʹͭͳ͕Ε͹0,
    w %PDLFS
    GPS
    .BDͷ৔߹͸EPDLFSGPSNBDMPDBMIPTUͰϗετʹͭͳ͕Δ
    w ϦϞʔτͷ,VCFSOFUFTΫϥελͷ৔߹͸1PE͔Β௨৴Մೳͳঢ়ଶʹ͢Δ
    w 9EFCVHͷೖͬͨ1PE͔Βϗετ΁ૄ௨Մೳʹ͢Ε͹0,

26. w 1IQ4UPSN͸,VCFSOFUFTʹରԠ͍ͯ͠ͳ͍
    w ΋͠ରԠ͢ΔͳΒEPDLFS
    FYFDΛϥοϓͨ͠QIQίϚϯυΛ༻ҙ͢ΔʢLVCFDUMͰ΋Մʣ
    w ͜ͷϑΝΠϧ΁ͷύεΛ1IQ4UPSNͷ$-*
    *OUFSQSFUFSʹࢦఆ͢Δͱಈ࡞͢Δ
    w ͨͩ͠ɺύεͷϚοϐϯά͸ޮ͔ͳ͍ͷͰϩʔΧϧͱ,VCFSOFUFTͰಉҰͷύεʹ͢Δඞ༻͕͋Δ
    w Ϛ΢ϯτ͢ΔύεΛௐ੔͢ΔͳΓɺMJGFDZDMFQSF4UBSUͰTZNMJOLΛషΔͳΓ
    

    w ࡞੒ͨ͠ίϚϯυͰύεΛஔ͖׵͑ͯ΋ྑ͍͔΋ʁ KubernetesΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔ 1IQ4UPSNͱ1)1
    6OJU
    PO
    ,VCFSOFUFT ɹ#!/bin/sh ɹCONTAINER_ID=$(docker ps -f name=php-fpm -q --latest) ɹdocker exec $CONTAINER_ID php "$@"

27. KubernetesΛ։ൃ؀ڥͱͯ͠࢖͑Δ͔ ଞ؀ڥͱͷൺֱ 6OJU
    5FTU $PNQPTFS ॳճىಈ NT NT NT NT N

    NT NT N NT 7BHSBOU ,VCFSOFUFT EPDLFSDPNQPTF ճ໨ͷىಈ N N N

28. 06 ·ͱΊ

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

30. ಇ͘Λ΋ͬͱָ͘͠ɺ૑଄తʹ