kubernetes-seminar

Transcript

1. Kubernetes جૅษڧձ TIBOQV

2. ͶΒ͍ 2 ˓ ,VCFSOFUFTͷجૅΛֶͼࠓޙͷษڧʹ໾ཱͯͯ΋Β͏
   ˓ ,VCFSOFUFTͷ͜ͱΛ޷͖ʹͳͬͯ΋Β͏

3. Agenda 3  ,VCFSFOFUFTͱ͸
    LVCFDUMɾLVCFOTɾLVCFDUY
    8PSLMPBETϦιʔε
    ೝূͱΞʔΩςΫνϟ
   

    %JTDPWFSZ
   
   -#
   Ϧιʔε
    $POpH
   
   4USBHF
   Ϧιʔε
    0UIFST
    ͍͞͝ʹ

4. Link 4 ˓ ϋϯζΦϯ
   ࢿྉ
   ˔ IUUQTHJUIVCDPNDIF[TIBOQVLTTFNJOBS
   ˓ ࿅श໰୊
   ˔ IUUQTHJUIVCDPNEHLBOBUTJPT$,"%FYFSDJTFT

5. 1. Kubernetesͱ͸ 5

6. ಡΈํ 6 ,VCFSOFUFT
   LT SEL@KIT

7. History 7

8. Kubernetes͸ԿΛߦ͏ʁ 8 ˓ ίϯςφͷ؅ཧΛ͍͍ײ͡ʹߦ͏

9. Kubernetesͷಛ௃ 9 ˓ ϚχϑΣετϑΝΠϧ
   ˓ εέʔϦϯά
   ˓ εέδϡʔϦϯά
   ˓ Ϧιʔε؅ཧ
   

   ˓ ηϧϑώʔϦϯά
   ˓ σʔλͷ؅ཧ SEL@KIT

10. 2. kubectlɾkubensɾkubectx 10

11. KubeCLIπʔϧࡾॐ࢜ 11 ˓ LVCFDUM
    ˔ ,VCFSOFUFTʹର͢Δ͋ΔΏΔૢ࡞Λߦͬͯ͘ΕΔίϚϯυ
    ˔ ࣮ࡍʹ͸,VCFSOFUFTͷ3&45
    "1*
    TFSWFSʹରͯ͠ϦΫΤετ Λૹ͍ͬͯΔ
    ˓

    LVCFOT
    ˔ OBNFTQBDFͷ੾Γସ͑Λ؆୯ʹͯ͘͠ΕΔ
    ˓ LVCFDUY
    ˔ DPOUFYUͷ੾Γସ͑Λ؆୯ʹͯ͘͠ΕΔ

12. kubectl جຊίϚϯυ 12 ˓ ALVCFDUM
    HFU
    ϦιʔεA
    ˔ ࢦఆͨ͠ϦιʔεͷεςʔλεΛऔಘ
    ˔ ALVCFDUM
    HFU
    Ϧιʔε
    ໊લ
    P
    ZBNMAͰͦͷϦιʔεͷϚ χϑΣετΛݟΔ͜ͱ΋Ͱ͖Δ
    

    ˓ ALVCFDUM
    EFTDSJCF
    Ϧιʔε
    ໊લA
    ˔ ໊લͰࢦఆͨ͠ϦιʔεͷৄࡉΛදࣔ

13. kubectl جຊίϚϯυ 13 ˓ ALVCFDUM
    BQQMZ
    G
    ϑΝΠϧͷύεA
    ˔ ϚχϑΣετϑΝΠϧΛΫϥελʹద༻͢Δ
    ˓ ALVCFDUM
    SVO
    ΦϓγϣϯA
    ˔

    ໋ྩతʹϦιʔεΛੜ੒͢Δ
    ˓ ALVCFDUM
    DSFBUF
    Ϧιʔε
    ໊લA
    ˔ ࢦఆ໊ͨ͠લͰࢦఆͨ͠ϦιʔεΛ࡞੒
    ˔ ࡞੒Ͱ͖ΔϦιʔεͷछྨʹ͸ݶΓ͋Γ

14. kubectl جຊίϚϯυ 14 ˓ ALVCFDUM
    EFMFUF
    Ϧιʔε
    ໊લA
    ˔ ࢦఆͨ͠ϦιʔεΛ࡟আ
    ˔ G
    ͰϚχϑΣετʹهࡌ͞Ε͍ͯΔϦιʔεΛ࡟আ
    ˓

    ALVCFDUM
    FYQMBJO
    Ϧιʔε ϑΟʔϧυ໊ A
    ˔ ֤ϦιʔεͷϚχϑΣετϑΝΠϧʹهࡌ͢ΔϑΟʔϧυͷ৘ ใΛදࣔ

15. kubensɾkubectx 15 ˓ LVCFOT
    ˔ ΫϥελͷOBNFTQBDFΛҰཡදࣔ
    ˔ ALVCFOT
    OBNFTQBDF໊AͰOBNFTQBDFͷ੾Γସ͑
    ˓ LVCFDUY
    

    ˔ ࣗ෼ͷॴ͍࣋ͯ͠ΔίϯςΩετΛҰཡදࣔ
    ˔ ALVCFDUY
    ίϯςΩετ໊AͰίϯςΩετͷ੾Γସ͑

16. 3. WorkloadsϦιʔε 16

17. ུ֓ਤ 17

18. Pod (po) 18 ˓ 8PSLMPETϦιʔεͷ࠷খ୯Ґ
    ˓ $POUBJOFS
    㱨
    1PE
    ˓ σβΠϯύλʔϯ
    ˔

    αΠυΧʔύλʔϯ
    ˔ Ξϯόαμʔύλʔϯ
    ˔ Ξμϓλύλʔϯ

19. ReplicaSet (rs) 19 ˓ SFQMJDBTͰҡ͍࣋ͨ͠1PEͷ ਺Λࢦఆ
    ˓ 3FQMJDB4FU୯ମͰ࢖͏͜ͱ ͸͋·Γͳ͍
    ˔

    ޙड़ͷ%FQMPZNFOUΛ࢖͏

20. Deployment (deploy) 20 ˓ 3FQMJDB4FUΛ؅ཧ
    ˔ ϩʔϦϯάΞοϓσʔτ
    ˔ ϩʔϧόοΫ
    ˓

    BQQMZ͢Δͱద౰ͳ3FQMJDB4FU Λ࡞੒

21. DeploymentͷϩʔϦϯάΞοϓσʔτ 21

22. DeploymentͷϩʔϦϯάΞοϓσʔτ 22

23. StatefulSet (sts) 23 ˓ σʔλΛӬଓԽ͢Δ࢓૊Έ Λඋ͑Δ
    ˓ 1PEͷ໊લʹΠϯσοΫε ͕αϑΟοΫεͱͯͭ͘͠

24. DaemonSet (ds) 24 ˓ ֤ϊʔυʹඞͣҰͭ1PEΛ ഑ஔ͢Δ
    ˓ /PEF4FMFDUPS౳Λ࢖͑͹ ഑ஔ͠ͳ͍͜ͱ΋Մೳ

25. Job 25 ˓ ίϯςφΛར༻ͯ͠Ұ౓ݶΓ ͷॲཧΛ࣮ߦͤ͞Δ
    ˓ ࣮ߦํ๏΍׬ྃ৚݅ΛࢦఆͰ ͖Δ
    ˔ /ฒྻͰ࣮ߦͯ͠΄͍͠
    

    ˔ /ճ੒ޭͨ͠Βਖ਼ৗऴྃʹͯ͠ ΄͍͠
    ˔ /ճࣦഊͨ͠Β΋͏͠ͳͯ͘ ΋͍͍

26. CronJob (cj) 26 ˓ +PCΛఆظ࣮ߦ ͯ͘͠ΕΔ

27. 4. ೝূͱΞʔΩςΫνϟ 27

28. NamespaceͱRBAC 28

29. ClusterͱNode 29

30. MasterNodeͱNode 30

31. 5. Discovery & LB Ϧιʔε 31

32. ClusterIPɾExternalIP 32 ˓ $MVTUFS*1
    ˔ Ϋϥελ಺෦ͷ*1
    ˓ &YUFSOBM*1
    ˔ Ϋϥελ֎෦ͱ΋ૄ௨ੑͷ͋

    Δ*1

33. NodePort 33 ˓ ͦΕͧΕͷ/PEFͷࢦఆ 1PSU΁ͷτϥϑΟοΫΛɼ ͦΕʹඥ͚ͮͨ1PEͷ1PSU ΁సૹ
    ˓ $MVTUFS*1͸ࣗಈతʹൃߦ

34. LoadBalancer 34 ˓ Ϋϥελ֎ʹ-#Λ࡞੒
    ˔ -#ʹ֎෦ૄ௨ੑͷ͋Δ*1Λ ෇༩

35. Ingress 35 ˓ -ͷϩʔυόϥϯα
    ˓ *OHSFTT
    $POUSPMMFS͕ ผ్ඞཁ

36. 6. Config & Strage Ϧιʔε 36

37. Secret 37 ˓ ओʹػີ৘ใͷอ؅ʹ࢖͏
    ˓ ,FZ7BMVF
    ͷܗͰهड़
    ˓ 7BMVF͸CBTFͰΤϯ ίʔυ

38. ConfigMap (cm) 38 ˓ 4FDSFUͷػີ৘ใ͡Όͳ͍൛
    ˓ ϑΝΠϧͷத਎Λॻ͍ͯͦΕ ΛϚ΢ϯτͤ͞Δ࢖͍ํ΋Α ͘͢Δ

39. PersistentVolume (pv) 39 ˓ ӬଓԽྖҬͱͯ֬͠อ
    ˓ ༧ΊετϨʔδΛ༻ҙ͓ͯ͘͠

40. PersistentVolumeClaim (pvc) 40 ˓ 1FSTJTUFOU7PMVNF$MBJN ܦ༝Ͱ17Λ֬อ͢Δ
    ˓ 17$ͷཁٻʹ߹ͬͨ17͕ ෷͍ग़͞ΕΔ

41. 7. Others 41

42. NetworkPolicy 42 ˓ 1PEಉ࢜ͷ௨৴Λ੍ޚ
    ˔ ྫ
    ಉ͡/BNFTQBDF಺ͷ1PE ͔͠௨৴Ͱ͖ͳ͍Α͏ʹ͢Δ

43. NodeSelectorɾNodeAffinity 43 ˓ 1PEͷεέδϡʔϦϯά ઌΛࢦఆ
    ˓ 1PETQFD಺ʹهड़
    ˓ /PEF"⒏OJUZͷํ͕ΑΓ ࡉ͔͍৚݅ઃఆ͕Մೳ

44. TaintɾTolerations 44 ˓ 5BJOUʢԚΕʣ
    ˔ 1PEΛεέδϡʔϦϯά ͤ͞ͳ͍
    ˓ 5PMFSBUJPOTʢ׮༰ʣ
    ˔

    5BJOUͷ͍ͭͨ/PEFʹ΋ εέδϡʔϦϯά͞ΕΔ

45. Ϧιʔεͷ੍ݶ 45 ˓ ࢖༻͢ΔϚγϯϦιʔεͷ ্ݶͱԼݶΛઃఆͰ͖Δ

46. 8. ͍͞͝ʹ 46

47. ঺հͰ͖ͳ͔ͬͨ͜ͱ 47 ˓ )PSJ[POUBM
    1PE
    "VUPTDBMFS
    ˓ 7FSUJDBM
    1PE
    "VUPTDBMFS
    ˓ %SBJOɼ$PSEPOɼ6ODPSEPO
    ˓ 1PE
    %JTSVQUJPO
    #VEHFU
    

    ˓ $VTUPN
    3FTPVSDF
    %FpOJUJPO
    ˓ $MVTUFS3PMFɼ$MVTUFS3PMF#JOEJOH
    ˓ 4FSWJDF"DDPVOU
    FUD

48. ࢀߟਤॻ 48 ˓ ,VFCFSOFUFT׬શΨΠυ
    ˔ ,VCFSOFUFTͷجຊཁૉΛ໢ཏ ͍ͯ͠Δ
    ˔ αϯϓϧίʔυɼਤ΋ଟ͘Θ͔ Γ΍͍͢
    

    ˓ ଞʹ΋,VCFSOFUFTຊ͸͋Δ
    ˔ ΋͠ങͬͨਓ͕͍ͨΒײ૝ڭ͑ ͍ͯͩ͘͞

49. Πϕϯτ& Slack 49 ˓ Πϕϯτ
    ˔ DPOOQBTTͰௐ΂ΔͱΘΓͱώοτ͢Δ
    ˔ ,VCFSOFUFT
    .FFUVQ
    5PLZPͳͲϏσΦ഑৴͍ͯ͠ΔΠϕϯτ΋͋Δ
    ˓

    4MBDL
    ˔ ,VCFSOFUFTϢʔβͷͨΊͷϫʔΫεϖʔε͕͋Δ
    ˔ ೔ຊਓͷͨΊͷνϟϯωϧ΋͋Δ
    ˔ ௐ΂ͯ΋Θ͔Βͳ͍͜ͱ͸͜͜ʹ౤͛ͯΈΔͷ΋Α͍

50. 50 ͓ർΕ༷Ͱͨ͠