课堂kuber第三讲的资源调度

1、IBM开源技术微讲堂Kubernetes系列第三讲Kubernetes中的资源调度与资源管理更多信息，请访问：/opentech-ma1“Kubenetes”系列公开课每周四晚8点档..9.10.Kubernetes 初探上手 KubernetesKubernetes 的资源调度Kubernetes 的运行时：Kubelet Kubernetes 的网络管理Kubernetes 的存储管理Kubernetes 的日志与监控Kubernetes 的应用部署扩展 Kubernetes 生态Kubernetes 的企业实践课程Wiki：http:

2、//opentech-ma2讲师介绍马达IBM 软件架构师，Kubernetes Maintainer,Mesos Contributior。吉林大学硕士，主修分布式系统, 网格计算。现任职于IBM系统中心，在资源管理， 资源调度及分布式计算方面有10多年的经验。3?SchedulingPredicatesPrioritiesSchedulingPredicatesScheduling105PrioritiesSchedulingSchedulingPredicatesPrioritiesScheduling?Prevent overcommit?Prevent overcomm

3、it?Prevent co-scheduling (pod anti-affi)Prevent co-scheduling (pod anti-affi)?PodAntiAffinity: TopologyKey: hostname, LabelSelector: type:catPrevent co-scheduling (pod anti-affinity)Prevent co-scheduling (pod anti-affi)Prevent co-scheduling (pod anti-affi)Prevent co-scheduling (pod anti-affi)Prevent

4、 co-scheduling (pod anti-affi)PodAntiAffi: TopologyKey: hostname, LabelSelector: type:catPrevent co-scheduling (pod anti-affi)?Force co-scheduling (pod affi)?PodAffinity: TopologyKey: hostname,LabelSelector: type:saplingForce co-scheduling (pod affinity)Force co-scheduling (pod affi)Dedicated machin

5、es (Taints)Dedicated machines (Taints)Taint: TaintEffect: NoSchedule, Key: color,Value: blueToleration: Key: color,Value: blue, Operator: Equal,TaintEffect: NoScheduleDedicated machines (Taints)Dedicated machines (Taints)Prevent overcommitPrevent co-schedulingForce co-schedulingDedicated NodesPredic

6、ate summary?Best fit vs worst fitWorst fitBest fit vs worst fitBest fitBest fit vs worst fit?Selector SpreadingSelector Spreading?Node AffiNode Affi?Pod AffiPod Affi?Pod Anti-AffiPod Anti-Affi?How to combine scores?aipiLinear combination?Resource ManagementResourceQuotaAdmissionResourceQuota?Resched

7、ulerRescheduler?Priority/PreemptionPriority/PreemptionResource Requirement Resource Estimation Quota by percentage Dynamic QuotaFlexible resource allocationSponsor: Joe Beda (jbeda)Champion: Timothy St. Clair (timothysc)SIG: sig-scheduling, sig-bigdata: kubernetes-incubator/kube-arbitratorStatus: st

8、artup and need more contributor JLive Demokubernetes-incubator/kube-arbitratorSIG SchedulingMeeting every other Monday 2pm PST#sig-scheduling Slack channelkubernetes-sig-scheduling mailing groupJoin commuIBM Code: Deploy a distributed GitLab leveraging Kubernetes and Docker1.The user interacts with

9、GitLab via the webinterface or by pushing code to arepository. The GitLab container runs the mainRuby on Rails application behind NGINX and gitlab-workhorse, which is a reverse proxy for large HTTP requests like file downloads and Git push/pull. While serving repositories over HTTP/ HTTPS, GitLab ut

10、ilizes the GitLab API to resolve authorization and access and serves Git objects.After authentication and authorization, the GitLab Rails application puts the incoming jobs, job information, and metadata on the Redis job queue that acts as a non-persistent database.Repositories are created in a local file system.The user creates users, roles, merge requests, groups, and moreall are then stored in PostgreSQL.The user accesses the reposi