D2 COMMUNITY 지원을 받고 있는 Open Container 커뮤니티의 다섯번째 밋업에서 진행된 발표자료입니다.

1. k8s / OpenShift / GKE
Junho Lee
jhlee@rockplace.co.kr

2. Who am I?
● Infomation
– Junho Lee ( 이준호 ) / jhlee@rockplace.co.kr
– Solutions Architect
– Google Cloud Platform Qualified Developer
● Career
– UBC/BCIT NASP (2011 ~ 2012)
– Post-secondary Teaching Assistant - University of British
Columbia Continuing Studies (UBC CS) (2013 ~ 2014)
– Solutions Architect – Rockplace Inc. (2014 ~ )

3. Solutions Architect?
[1] http://kubernetes.io/docs/whatisk8s/
[2] https://research.google.com/pubs/pub43438.html

4. What is k8s?
● k8s = Kubernetes
● Open Source Container
Cluster Manager
originally designed by
Google
● Based on Google’s
production workloads
● public / private  /
hybrid / multi-cloud
[1] http://kubernetes.io/docs/whatisk8s/
[2] https://research.google.com/pubs/pub43438.html

5. k8s will help you to..
● Deploy your applications quickly and
predictably
● Scale your applications on the fly
● Seamlessly roll out new features
● Optimize use of your hardware by using
only the resources you need
[1] http://kubernetes.io/docs/whatisk8s

6. k8s Architecture
[1] https://github.com/kubernetes/kubernetes/blob/release-1.3/docs/design/architecture.md
● The Kubernetes Node
– kubelet
– kube-proxy
● The Kubernetes Control Plane
– etcd
– Kubernetes API Server
– Scheduler
– Kubernetes Controller
Manager Server

8. k8s will NOT help you to..
[1] http://kubernetes.io/docs/whatisk8s/
“Kubernetes is not a traditional, all-inclusive
PaaS (Platform as a Service) system”
● No click-to-deploy service marketplace
● No source-to-image space
● No logging, monitoring, and alerting systems
● No Technical Support

9. What is OpenShift?
● Red Hat PaaS Platform
using k8s
● “OpenShift is Enterprise-
Ready Kubernetes”
● OpenShift
– Origin
– Container Platform 
– Online / Dedicated
[1] https://blog.openshift.com/enterprise-ready-kubernetes/

10. OpenShift will help you to..
[1] https://docs.openshift.com/container-platform/3.3/architecture/index.html
OpenShift = k8s + α
● Source code management, builds, and deployments for
developers
● Managing and promoting images at scale as they flow
through your system
● Application management at scale
● Team and user tracking for organizing a large developer
organization
● Professional Technical Support from Red Hat
– Security Updates, Certified Docker Image Hub

11. OpenShift Components
[1] https://www.openshift.com/container-platform/ - A in-depth technical look at OpenShift Enterprise 3.1

12. OpenShift Architecture
[1] https://docs.openshift.com/container-platform/3.3/architecture/index.html

13. What is GKE?
● GKE = Google
Container Engine
● Google PaaS Service
using k8s on Google
Cloud Platform(GCP)
● “One-click Kubernetes
clusters, managed by
Google”
[1] https://cloud.google.com/container-engine/

14. GKE will help you to..
[1] https://cloud.google.com/container-engine/
“Google Container Engine = k8s + α on Cloud”
● Automated Container Management
– Google Cloud Container Builder (Source to Image)
– Cloud Source Repositories (Private Git Repositories)
– Container Registry (Private Docker Image Registry)
● Set Up a Cluster in Minutes
– gcloud container clusters create NAME --zone ZONE
● Declarative Management
● Flexible & Interoperable
– Public / Hybrid / Multi Cloud
– Multi-Zone Clusters
● Professional Technical Support from Google

15. GKE Architecture
UserGoogle
Compute Engine
Load Balancer
Compute Engine
Load Balancer
Compute Engine
Firewall Rules
Stackdriver
Monitoring
Stackdriver
Logging
Compute Engine
Health Check
Compute Engine
Disk
Container Engine
Container Registry

16. UserGoogle
Compute Engine
Load Balancer
Compute Engine
Load Balancer
Compute Engine
Firewall Rules
Stackdriver
Monitoring
Stackdriver
Logging
Compute Engine
Health Check
Compute Engine
Disk
Container Engine
Container Registry

17. k8s / OpenShift / GKE
[1] https://commons.wikimedia.org/wiki/GNOME_Desktop_icons

18. k8s / OpenShift / GKE Comparison (1)
Environment App Store Click to deploy
   
App Gallery Yes
   
Installation
Cost
Operation
Cost
Out-of-box
experience
Source to
Image
k8s
(on-premise)
public / on-
premise / hybrid /
multi-cloud





OpenShift
(on-premise)
public / on-
premise / hybrid /
multi-cloud








S2I (Source To
Image)
GKE
(public)
public / hybrid /
multi-cloud


Google Cloud
Container
Builder

19. k8s / OpenShift / GKE Comparison (2)
CI / CD Logging Monitoring Alerting
     
 EF(Fluentd)K
Image
Registry
Version
Control
Service
Technical
Support
k8s
(on-premise)
Self /
Community
OpenShift
(on-premise)
Jenkins Plugin
Included
Image
Registry
Cockpit,
Heapster,
Hawkular
Cockpit,
Heapster,
Hawkular
Self /
Community
Red Hat
(* With
Subscription)
GKE
(public)
Jenkins Plugin
Included
Container
Registry
Cloud Source
Repositories
StackDriver
Logging
StackDriver
Monitoring
StackDriver
Monitoring
Self /
Community
Google
(* With
Support Plan)

20. OpenShift Demo