Presentation Slides for Breakout session at Japan Container Day 2018.04 https://containerdays.jp/v1804/ 関連記事: https://thinkit.co.jp/article/14030

1. 4 0 .10 . 4 1 2 0 10 .0

2. D
@yokawasa / https://github.com/yokawasa
C :A //
4 V 2 4 4
2 4
e01 4

4. •
•
•
→ SRE
→ Dev

5. žSelf Healing
žIn-Flight Renewing
žAdaptive Scale

6. ž
ž S O
ž
ž
ž
ž
ž
ž
Self Healing
Photo on oemupdate.com

7. ž
ž O
ž
ž
ž
ž
In-Flight Renewing
https://www.flickr.com/photos/usnavy/8019591466/

8. ž
ž C
ž C
ž
ž
ž W E
Adaptive Scale

10. https://www.slideshare.net/hiromasaoka/noops-88082246

13. • Phase = Pending | Running | Succeeded | Failed | Unknown
• Probe:
• Liveness probe:
• Readiness probe
RestartPolicy= Always| OnFailure | Never
https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/
https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/
https://kubernetes.io/docs/user-guide/walkthrough/k8s201/
: Pod with an HTTP health check

14. Deployment ReplicaSet
Pod Pod
Deployment ReplicaSet ReplicaSet Pod
(Replica )
Pod Pod
Pod
Deployment
ReplicaSet
Pod
A
Pod
B
Pod
C
Deployment
ReplicaSet
Pod
A
Pod
B
Pod
C
Pod
C

15. Deployment
ReplicaSet V1
Pod Pod Pod
Deployment
ReplicaSet v1
Pod Pod
ReplicaSet V2
Pod
Deployment
ReplicaSet V2
Pod Pod Pod

16. • Kubernetes version
.spec.updateStrategy.type RollingUpdate
https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#rolling-updates
kubectl patch statefulset web –p
'{"spec":{"updateStrategy":{"type":"RollingUpdate"}}}'

17. 2.

18. • ReplicaSet / Deployment Pod ( replica# ) CPU | ( kubernetes1.8 )
• Heapster
• SPOF
ReplicaSet
PodPod Pod Pod
Holizontal
Pod
Autoscaler
cAdvisorcAdvisor
kubelet kubelet
https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough/
Deployment
kubectl autoscale deployment php-apache
--cpu-percent=50 --min=1
--max=10

19. • Pod
• - Pod
• CA-1.0.X GA kubernetes-1.8
•
• GCP, AWS, Azure
• : Azure CA-1.1.0 Kubernetes-1.9.X 2018/04/19 VMSS / acs-engine
• See also Cluster Autoscaler on Azure

22. https://twitter.com/kelseyhightower/status/963413508300812295
https://twitter.com/kelseyhightower/status/963419882376241153
Kubernetes StatefulSets
Volumes
Kubernetes

24. Key/value
OrdersCart Catalog &
Reviews
Document
Suggestions
Graph
E-Commerce Service
RDBMS

25. Open Service Broker API
+ Service Catalog
ž Open Service Broker API :
ž Service Catalog : Kubernetes Open Service Broker API

26. https://www.openservicebrokerapi.org/
Open Service Broker API – v2.13

27. Cloud Foundry
Cloud
Controller
https://www.openservicebrokerapi.org/
Any Platform
API

28. Secret
Service Catalog Architecture
https://kubernetes.io/docs/concepts/service-catalog/
Service Catalog Design
https://github.com/kubernetes-incubator/service-
catalog/blob/master/docs/design.md

29. Cloud Foundry
Cloud
Controller
Any Platform
Kubernetes
+
Service CatalogService Catalog

30. https://github.com/Azure/open-service-broker-azure

33. Kubernetes
Kubernetes Kubernetes
•
•
•
• SDN
•
•

34. Set up High-Availability Kubernetes Masters
https://kubernetes.io/docs/tasks/administer-cluster/highly-available-
master/#implementation-notes

35. Agent Pool
Agent VM Agent VM Agent VM Agent VM
Agent VM Agent VM Agent VM Agent VM
Hosted Control
Plane
AKS
PREVIEW

36. az aks scale –name mycluster –resource-group rg-aks --node-count 4
az aks upgrade –name mycluster –resource-group rg-aks --kubernetes-version 1.9.2

37. ( ) vCPU
/
Kubernetes

38. /
- 5
- 5
22
- -/
PREVIEW

39. Kubernetes
control pane
Application
architect
Infrastructure
architect
Azure Container Instances (ACI)
ACIConnector
Pod
Pod Pod
Pod
Pod Pod
Pod
Pod Pod
Pod
Pod Pod
VM VM
VM VM
Deployment/ tasks
Pod Pod Pod Pod Pod
Pod Pod Pod Pod Pod
Pod Pod Pod Pod Pod
Pod Pod Pod Pod Pod
Pod Pod Pod Pod Pod
WasteWaste
WasteWaste PodPod
PodPod
ACI Connector for Kubernetes Kubernetes ACI
VM ACI
PREVIEW

40. https://github.com/virtual-kubelet/virtual-kubelet
Kubetet – Kubernetes

43. •
•
•
•
• (CI/CD)

44. :
https://docs.microsoft.com/ja-jp/azure/architecture/microservices/interservice-communication
•
• :
•
•
•
•
ID
•
•
•
• TLS TLS

45. •
• L7 L4
• Pod
https://github.com/istio/istio
https://github.com/linkerd/linkerd
https://github.com/runconduit/conduit
Pod

46. https://istio.io/docs/concepts/what-is-istio/overview.html
https://istio.io
https://www.envoyproxy.io/

47. Istio - Creating circuit breaking policies
https://istio.io/docs/tasks/traffic-management/circuit-breaking.html
https://istio.io

48. Polly
https://docs.microsoft.com/ja-jp/dotnet/standard/microservices-architecture/implement-resilient-
applications/implement-circuit-breaker-pattern

50. • CI/CD
•
•
•
• CI/CD

51. Helm
• Kubernetes
• Linux apt-get yum Mac OS Homebrew
• Linux Deps RPM Helm Charts
https://helm.sh/
Helm
• ( Helm ): CI/CD
• ( tiller ): Kubernetes
Charts
https://github.com/kubernetes/charts

52. helm install
-f config.yaml
<package> …
helm upgrade
-f config.yaml
<release-name> …

53. helm rollback
<release-name>
<revision>

55. •
• CPU
• Kubernetes
• CPU
• cAdvisor kube-state-metrics
•
•
•
• PaaS

56. : :
https://docs.microsoft.com/en-us/azure/architecture/microservices/logging-monitoring
• Prometheus InfluxDB
• Kibana, Grafana
Kibana Grafana
OMS/LogAnalytics
LogStash cAdvisor
Prometheus
Elastic Search InflluxDB