Deploying a Containerized Application On GKE

Transcript

1. Deploying a Containerized Application on Google Kubernetes Engine Masayuki Hayasida Software Developer at Framgia.Inc 2017/12/23
2. self-introduction Software Engineer Framgia.Inc ɾ࠷ۙԬࢁҾͬӽ͖ͯͨ͠ ɾϑϧϦϞʔτϫʔΧʔ
 ɾ޷͖ͳٕज़ 
 - Frontend(react, redux, angular)
 - Infrastructure(GCP, AWS, Azure, VPS…)
 - GAS, Slack, Serverless… ୲౰ྖҬ͸͜ͷ΁Μ
3. today’s topic ɾWhat’s kubernetes ɾWhat’s GKE
 ɾHow to provide an application on GKE ɾOthers
4. Kubernetes
5. What’s Kubernetes ? Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. ɾAutomatic binpacking ɾHorizontal scaling ɾAutomated rollouts and rollbacks ɾStorage orchestration ɾSelf-healing ɾService discovery and load balancing ɾSecret and configuration management ɾBatch execution
6. Α͏͢Δʹɺɺ ίϯςφΫϥελϚωʔδϟͰ͢ 
 ɾίϯςφͷΦʔτεέʔϧ ɾϦιʔεεέδϡʔϧ ɾϩʔυόϥϯγϯά ɾetc…
7. How can I use Kubernetes ? ɾGCP (Compute Engine, Kubernetes Engine) ɾAWS (AmazonEC2, AmazonEKS new! ) ɾAzure(Azure Container Service) ɾIBM Blue Mix
 ɾetc… ϚωʔδυͰͳͯ͘ɺselfhost͢Δ͜ͱ΋Մೳɻ ͯͬͱΓ͹΍͘͸͡ΊΔʹ͸ύϒϦοΫΫϥ΢υΛ࢖ͬͨํָ͕ʹߏஙͰ͖Δ
8. Kubernetes Architecture
9. Kubernetes Architecture
10. Pod / Deployment
11. Pod / Deployment PodɿίϯςφΛάϧʔϐϯάԽͨ֓͠೦ Deployment: PodΛ্ཱͪ͛ͷఆ͚ٛͮΛͨ͠΋ͷ - template: Podఆٛ - replicas: Podͷಉ࣌ىಈ਺Λఆٛ and keep PodͷϨϓϦΧ਺্ݶ͸NodeͷεϖοΫʹґଘ͢Δ - image: docker image file 
 ӈͷྫͰ͸ɺnginxͷPodΛport:80Ͱ3ͭͨͪ͋͛ͯʔ 
 

12. kubernetesͷૢ࡞͸ɺkubectl
13. Service
14. Service - ओʹ಺෦తͳωοτϫʔΫ؅ཧΛߦ͏ - τϥϑΟοΫͷड෇Λ୲͏ΞΫηείϯτϩʔϥ ಉҰͷPodʹ୅දIPΛ͚ͭͯ;ΓΘ͚Δ ͖͞΄ͲͷnginxPodͷϨϓϦΧ3ͭ ͍͍ײ͡ʹ;ΓΘ͚ͯʔ
15. Ingress
16. Ingress - άϩʔόϧͷϩʔυόϥϯαΛఆٛ - HOST΍TLSઃఆΛ͢Δ - ΞΫηεϧʔϧͷઃఆ͕Մೳ
 όʔνϟϧϗετ΍URLʹΑΔ
 αʔϏε΁ͷ;ΓΘ͚ ར༻ྫɿ - ෳ਺։ൃػͰαϒυϝΠϯຖʹ
 ΞΫηεϧʔϧΛ࡞੒ - ຊ൪ػ / ։ൃػΞΫηεΛৼΓ෼͚
17. Kubernetes
18. Kubernetes on GKE
19. Kubernetes on GKE
20. GKE is … ɾΫϥελͷૢ࡞͸GCP-SDKͷgcloudͰૢ࡞
22. ࣮ྫɿࣗࣾαʔϏε
23. GCP Architecture
24. Main Application
25. Main Application
26. Nginx /healthz Ͱ Ϩεϙϯε200Λ͔͑ͯ͋͛͠Δ
27. Rolling Update ஈ֊తʹPodΛ͍Ε͔͑ͯ͘ΕΔɻ μ΢ϯλΠϜθϩํࣜ
28. Puma / Sidekiq
29. Secrets / ConfigMap ɾconfϑΝΠϧ͸ docker಺ʹ;͘Ίͣɺ volumeΛϚ΢ϯτͯ͠࢖͏
30. - db:migrate΍assets-precompile౳ͷrakeλεΫશൠ͸JobͰߦ͏ 
 - db-migrationΛ͢ΔPodΛͨͪ͋͛ - rakeλεΫΛ࣮ࢪɺͦͯ͠໾໨Λ͸ͨͯ͠ࢮΜͰ͍͘ Job
31. Job Script
32. ఆظతʹ࣮ߦ͢ΔJob΍ɺϐϯϙΠϯτͷ࣌ؒଳʹ࣮ߦ͍ͨ͠৔߹͸CronJobΛ࢖͏ ਂ໷ͷrakeλεΫʢఆظతͳΫϦʔχϯάॲཧʣΛCronJobͰ࣮ߦ͍ͯ͠Δ CronJob
33. - VolumeϑΝΠϧΛComputeEngineͷDisk͔ΒऔಘͰ͖Δ - Pod͔ΒಡΈࠐΉͱ͖͸readonly ͳͷͰɺผdiskΛऔಘ͠ɺPodΛ࠶࡞੒͢Δͱ͔͍͏ΊΜͲ ͍͘͜͞ͱΛ͠ͳ͚Ε͹ͳΒͳ͍ R/W͠ͳ͕ΒӬଓԽ͍ͨ͠ʹ೉͋Γ GCEPersitentDisk / assets:precompile
34. ͨͩ͠ʂʂʂʂ υΩϡϝϯτൈਮ
35. Ͳ͏͢Δʁʁ
36. https://github.com/kubernetes/examples/blob/master/staging/volumes/nfs/README.md NFS NFSαʔόΛؒʹ͸͞Ήͱෳ਺ϙουͰ΋R/WͰϘϦϡʔϜར༻͕Մೳ
37. Build / Deploy
38. Build / Deploy
39. Private Registory
40. Container Registry / Cloud Container Builder 
 - KMSʹΑΔɺconfig/database.ymlͷෳ߹ - KMSʹΑΔɺconfig/secrets.ymlͷෳ߹ - migration - docker build and push GCR - kubectl set image - slack notifications
41. Container Registry / Cloud Container Builder
42. Container Registry / Cloud Container Builder
43. Logging / Monitoring
44. Logging / Monitoring
45. - ඪ४ग़ྗͨ͠΋ͷ͸શͯɺStackdriver΁ग़ྗ͞ΕΔ - Stackdriver͔ΒStackdriverMonitoring΁ͷ࿈ܞ - ϩάͷܗࣜ͸JSON͕Α͍ - Stackdriverͷϩάσʔλ͸ҎԼͷGCPαʔϏε΁࿈ܞՄೳ - Cloud Pub/Sub - Cloud Storage - BigQuery Logging(Stackdriver)
46. Stackdriver -> PubSub-> ElasticStack - PubSubͰlogstashͷpiplineʹϩάΛྲྀ͜͠Έɺ
 Elasticserchʹͱ͹ͯ͠ɺkibanaͰՄࢹԽʂ - ओʹো֐ௐࠪ༻్
47. Stackdriver -> BigQuery -> DataStudio
48. Monitoring (Prometheus * Grafana) - Pod୯ҐͰੑೳ؂ࢹ͕Ͱ͖Δɻଟ࠼ͳMetrics - OpenMetricsͱͯ͠ͷσϑΝΫτʹͳΓͦ͏ - ԼͷΩϟϓνϟͷΑ͏ʹɺͳʹΑΓGrafanaΧοίΠΠΑͯ͘
 ςϯγϣϯ͕͕͋Δɻ΋ͪΖΜAlertઃఆͰSlack௨஌΋Մೳ
49. ࢖ͬͯͳ͍͕ɺҰԠػೳΛONʹ͍ͯ͠Δ
 Monitoring (Stackdriver)
50. ɾSpinnecker, Istio, gRPCͳͲར༻͠ ϚΠΫϩαʔϏεԽΛ͢͢ΊΔ ࠓޙ΍Γ͍ͨ͜ͱ
51. ɾ·ͱΊKubernetesΛͯͬͱΓ͹΍͘
 ͸͡ΊΔͷʹGKE͸࠷ద ɾҰ౓ఆٛϑΝΠϧΛ࡞Ε͹
 ผϓϩδΣΫτͰ΋ԣஅతʹ࢖͑Δ ɾେྔͷτϥϑΟοΫ͕͋ΔطଘαʔϏεͰ
 ͷҠߦ͸৻ॏʹ ɾGAE΍HerokuͰಈ͍͍ͯΔΞϓϦΛ ·ͣ͸Ҡߦͯ͠Έͯӡ༻ͯ͠ΈΔͷ͕ϕλʔ ·ͱΊ
52. ͓ΘΓ