Kubernetes始めてみた

沖縄・宜野湾エンジニア勉強会(大LT大会) のトーク資料です
https://connpass.com/event/90184/

Transcript

1. Kubernetes࢝ΊͯΈͨ ͔ͼ @d_ishitaka
2. ࣗݾ঺հ • ͔ͼ͞Μˏੴߴେհ Twitter: @d_ishitaka
 Ծ૝طࠗऀͰ͢ʂʂ Ծ૝཭ࠗ͠·ͨ͠ʂ • ླྀٿେֶʹฤೖ͖ͯͨ͠4೥ੜ(3ճ໨)Ͱ͢ɻ • ڈ೥·Ͱٳֶͯͯ͠ϑϦʔϥϯεΤϯδχΞͨ͠ΓɺΞϧόΠτͨ͠Γͯ͠·ͨ͠(ࠓ΋) • ʮࢦథܳਓʯ • Ϋϥ΢υٕज़͕޷͖ͰɺJAWSUGͱGCPUGʹΑ͘ߦͬͯ·͢ɻ • ޷͖ͳݴޠ͸GoͰɺ࠷ۙ͸Α͘RubyΛॻ͍͍ͯ·͢ɻ • ۤखͳ΋ͷ͸Ծ૝௨՟Ͱ͢ɻ
3. ࣗݾ঺հ
4. ࣗݾ঺հ • ͔ͼ͞Μˏੴߴେհ Twitter: @d_ishitaka
 Ծ૝طࠗऀͰ͢ʂʂ Ծ૝཭ࠗ͠·ͨ͠ʂ • ླྀٿେֶʹฤೖ͖ͯͨ͠4೥ੜ(3ճ໨)Ͱ͢ɻ • ڈ೥·Ͱٳֶͯͯ͠ϑϦʔϥϯεΤϯδχΞͨ͠ΓɺΞϧόΠτͨ͠Γͯ͠·ͨ͠(ࠓ΋) • ʮࢦథܳਓʯ • Ϋϥ΢υٕज़͕޷͖ͰɺJAWSUGͱGCPUGʹΑ͘ߦͬͯ·͢ɻ • ޷͖ͳݴޠ͸GoͰɺ࠷ۙ͸Α͘RubyΛॻ͍͍ͯ·͢ɻ • ۤखͳ΋ͷ͸Ծ૝௨՟Ͱ͢ɻ
5. ࠓ೔࿩͢͜ͱ •Kubernetesͱ͸ʁ(ͬ͘͞Γ) •Ͳ͏͍͍ͷʁ •͸͡ΊͯΈͨ •ݱঢ়ɺKubernetesΛऔΓר͘؀ڥ •·ͱΊ
6. ࠓճͷ๻ͷτʔΫͷςʔϚ Kubernetes
7. Kubernetes஌ͬͯΔਓʁ
8. Ϋόωςε஌ͬͯΔਓʁ
9. Ϋϕϧωςε஌ͬͯΔਓʁ
10. ΫʔϕϧωΠςε஌ͬͯΔਓʁ
11. ͪͳΈʹਖ਼͍͠ಡΈํ͸
13. ͜Ε͸ӕͰ͠ΐʂ
14. ͜ͷதͰ ۀ຿ͰKubernetesΛ࢖͍ͬͯΔਓʁ
15. ͜ͷதͰ ۀ຿ͰKubernetesΛ࢖͍ͬͯΔਓʁ ϚαΧϦ͸࠷ޙʹ·ͱΊ͓ͯ౤͛Լ͍͞
16. Kubernetesͱ͸ʁ •͍ΘΏΔຊ൪؀ڥʹ࢖͑Δʮίϯςφʯͷ
 ʮΦʔέετϨʔγϣϯπʔϧʯͰ͢ɻ
 
 →
17. Kubernetesͱ͸ʁ •͍ΘΏΔຊ൪؀ڥʹ࢖͑Δʮίϯςφʯͷ
 ʮΦʔέετϨʔγϣϯπʔϧʯͰ͢ɻ
 
 → Ͳ͏΍ͬͯ࢖͏ͷ͔ͳʁ
18. ͦ΋ͦ΋ίϯςφͱ͸ʁ
19. ͦ΋ͦ΋ίϯςφͱ͸ʁ •Α͘͸Θ͔Βͳ͍͚ͲɺΠϝʔδ͸͜Μͳײ͡ͷ Ծ૝Խٕज़ͷҰͭͩͱଊ͍͑ͯ·͢ɻ
 
 
 
 
 
 
 

20. ΦʔέετϨʔγϣϯπʔϧͱ͸ʁ •(ଟ෼)ChefͷKnife΍(ଟ෼)AnsibleͷΑ͏ʹɺओʹ ϚγϯͷηοτΞοϓ৘ใΛهड़ͨ͠Կ͔͠ΒͷϑΝ Πϧ͕͋ΓɺͦΕΒͷϑΝΠϧΛݩʹ࡞ΒΕͨαʔ όʔΛ؅ཧ͢ΔͨΊͷ࢓૊Έ(←ͱղऍ͍ͯ͠Δ) •ͦΕͷίϯςφ൛
 (Ͳ͏΍ΒLXD౳ͷDockerҎ֎ͷίϯςφٕज़ʹ΋ ࢖͑͸͢ΔΒ͍͠)
21. ͭ·ΓKubernetes͸ αʔόʔ্ʹ͋ΔίϯςφΛ ؅ཧͯ͘͠ΕΔ΍ͭ…ʂ
22. ͭ·ΓKubernetes͸ αʔόʔ্ʹ͋ΔίϯςφΛ ؅ཧͯ͘͠ΕΔ΍ͭ…ʂ Ұ୴ͳΔ΄Ͳ…ʁ
23. Kubernetes͸Ͳ͏͍͍ͷʁ
24. ྑ͘͸Θ͔Γ·ͤΜʂ
25. Ͱ΋DockerΛ࢖͏έʔε͸ଟͦ͏ •ϚΠΫϩαʔϏεΞʔΩςΫνϟ͕ྲྀߦͬͯ ͖͍ͯͨΓɺ࣮ߦ؀ڥͱಉ͡؀ڥΛ։ൃ؀ڥ Ͱ࠶ݱͰ͖ͨΓɺςετͷ࣌΋αʔόʔཱͯ ͣʹDockerίϯςφΛ࢖ͬͨΓ͢Δέʔε͸ ૿͍͑ͯΔؾ͕͢Δɻ •ͦ͏͍͏χʔζͷ͜ͱΛߟ͑ΔͱɺAnsible ΍Chef΍VagrantͰ͸ॏ͍ؾ΋͢Δɻɻɻ
26. DevOpsͷ྆ํ͕Ͱ͖Δ •࠷ॳ͔ΒKubernetesͰӡ༻͍ͯ͠Ε͹ɺαʔόʔ ্ͰͲͷϛυϧ΢ΣΞΛར༻͢Δ͔͸։ൃऀ͕ Dockerfileʹॻ͚͹ྑ͍͠ɺ͙͢ʹखݩͰࢼͤΔɻ •Chef౳Λ࢖͍ͬͯΔͱɺϚγϯͷϛυϧ΢ΣΞಉ ࢜ͷׯবͱ͔ͱ͔΋ߟ͑ͳ͍ͱ͍͚ͳ͍ͷͱɺϩʔ ΧϧͰVM༻ҙ͢Δͱ͔΋݁ߏॏ͍ɻVagrantવ Γɻ
27. ଱ো֐ੑ͕࠷ॳ͔Βߴ͍ •΋ͪΖΜCookbookͱ͔ʹͪΌΜͱσʔϞϯͱ͠ ͯɺམͪͨΒ࠶౓ىಈ͢Δͱ͔ॻ͍͍ͯΕ͹͍͍ ͷ͚ͩͲɺϗετʹΰϛ͕࢒ͬͯͦͷΰϛͷ͍ͤ ͰىಈͰ͖ͳ͍ͱ͔ͩͱ໽հ(inodeͱ͔)ɻ •KubernetesΛ࢖͍ͬͯΕ͹མͪͨΒίϯςφ͕ࢮ ʹɺউखʹ৽ཱͯͯ͘͘͠ΕΔͷͰɺ͋·Γͦͷ ลΛؾʹ͠ͳͯ͘΋͍͍ɺԿͳΒΞϓϦέʔγϣ ϯΤϥʔͰམͪͯ΋ɺىಈͯ͘͠ΕΔɻ
28. ͱ͍͏ͱ͜ΖͰ΍ͬͯΈ·ͨ͠
29. ࣮͸KubernetesΛݚڀʹ ૊Έࠐ΋͏ͱ͍ͯ͠Δ •෼ࢄॲཧΛݚڀࣨ಺Ͱѻ͏ͷͰɺͦͷ෼ࢄॲཧ Λߦ͏؀ڥࣗମΛKubernetes+DockerͰରԠ͠ Α͏ͱ͍ͯ͠Δɻ •ͦ͏͢Δ͜ͱʹΑͬͯݚڀࣨ಺ͷ༨৒ϦιʔεΛ ࢖ͬͯɺ؀ڥΛԚͣ͞ʹܭࢉॲཧΛߦ͏͜ͱ͕Ͱ ͖ͦ͏ʂ •ͳͷͰKubernetesΛ࢝ΊͯΈ·ͨ͠ɻ
30. KubernetesͷTutorial •ͱΓ͋͑ͣKubernetesͷTutorialΛ •https://kubernetes.io/docs/tutorials/
31. Kubernetes Tutorialͷྑ͍ͱ͜Ζ •ϒϥ΢β্ͰKubernetesΛࢼͤΔʂ
 
 
 
 
 
 
 

32. Kubernetes Basics •·ͣ͸Kubernetes BasicsͷTutorialΛʂ •಺༰͸͜Μͳײ͡ʹͳ͍ͬͯΔΑ͏Ͱ͢ɻ
 
 
 
 
 
 
 
 

33. https://kubernetes.io/docs/tutorials/kubernetes- basics/create-cluster/cluster-interactive/
34. TutorialΛऴ͑ͯ… •νϡʔτϦΞϧ͘Β͍ͩͬͨΒผʹ೉͘͠͸ͳ͍͕ɺ࣮ࡍʹ࢖͓͏ͱ͢ Δͱɺࣗݾ؀ڥͰͷηοτΞοϓ͕໘౗ͳ༷ࢠ •minikubeΛ࢖͑͹ϩʔΧϧͰ͸େৎ෉͚ͩͲϚϧνϊʔυ͸·ͩରԠ ͯ͠ͳͦ͞͏ •NodeͷωοτϫʔΫઃఆɺKubernetes΁ͷ઀ଓ౳ʑ… •ҰԠϩʔΧϧͰηοτΞοϓ͢Δํ๏ͱͯ͠bootkubeͱ͍͏πʔϧ΋ग़ ͖͍ͯͯͯɺݸਓͰ࢖͏ͷʹ΋ෑډ͸Լ͕͖͍ͬͯͯΔΑ͏Ͱ͕͢ɺ KubernetesͰαΫοͱαʔϏε࡞ͬͯग़͔͢ʔɺͷϋʔυϧ͸·ͩߴ͍ •࠷ۙͷைྲྀ͸ʁ
35. ΍ͬͺΓΫϥ΢υΛ࢖͏ํ͕͍͍ •࠷ۙͰ͸KubernetesʹରԠ͍ͯ͠ΔΫϥ΢υϗεςΟϯά؀ڥ΋ॆ࣮ ͖͍ͯͯ͠Δ •GCPͷGKE(Google Kubernetes Engine) •AzureͷAKS(Azure Kubernetes Service) logoແ͔ͬͨ •AWSͷEKS(Elastic Kubernetes Service) •͜ͷதͩͱ࣮ӡ༻ࣄྫͰݸਓతʹΑ͘ݟΔͷ͸GKEͰɺҙ֎ͳ͜ͱʹ AWSͷEKS͸Ұ൪ޙൃ •ͱ͸͍͑๻͸ݚڀͰ࢖͏ͷͰࣗલͰ૊·ͳ͍ͱ͍͚ͳ͍Ͱ͕͢ʂʂ
36. ·ͱΊ •Kubernetesɺӡ༻͸Ͳ͏΍Βָͦ͏͚ͩͲɺࣗ෼ͰΫ ϥελ૊Ήͱ݁ߏେมͦ͏ʂ •Ͱ΋microserviceԽͷྲྀΕ͸͋Δ͔ΒɺͦΕͱͷ૬ੑ ͸ྑͦ͞͏ʂ •΋͠ຊ൪ͱͯ͠࢖͏ͳΒGKEͱ͔AKSͱ͔EKSͱ͔Λ ׆༻͢Δͷ͕͍͍͔΋Ͱ͢Ͷʂ •ࣗલͰ૊Ήtips͸ࠓޙݚڀ͕ਐΊ͹ߋ৽ͯ͠ߦ͖·͢ʂ
37. exit 0
38. ࠂ஌ •7/17(Ր)ͷ໷ʹOkinawa.go͋Γ·͢ʂདྷͯͶʂ •https://okinawa-go.doorkeeper.jp/events/76882