大规模部署CloudFoundry云平台多达数千个虚拟机结点.PPT

微博：@cloudfoundry 网站：/ 博客：/ 社区：/ 文档：/ 视频：/CloudFoundryCN Cloud Foundry中文资源 注册并使用Cloud Foundry /signup 使用下面推广码 可马上获得批准： CFCN Thank You! * Cloud computing as most vendors describe it breaks down into three fundamental layers. You’ve probably seen this before, so we’ll be brief. At the top, we have SaaS, or Software as a Service. This is layer that faces consumers and has been around the longest. The .com buzz in the 90s was an early form of SaaS. Instead of installing software onto a computer, we interact with a server via a web browser. Instead of Outlook on a desktop, we use GMail in a browser. At the bottom, we have Infrastructure as a Service. This is about moving away from physical machines in a data center to virtualized compute resources. Need a new server? Avoid the P.O. and just buy access to someone else’s compute resources. Amazon’s EC2 is king in the public space, VMware’s vSphere is dominate in the enterprise and Open Stack is the new incumbent. So if SaaS targets consumers and MBAs, IaaS targets sysadmins, what about developers? That’s where PaaS or Platform as a Service fits in. PaaS is the youngest of these layers and makes it easy to deploy applications without installing an operating system, application server or database servers. PaaS is what this talk is about. * * Staging: creating a runnable application, bundler, modify a DB cofig. Like bookstore We stick the user/pass connection, you don’t this. Works for Java Packaged cache – “foo packaged in rails” Blobstore – where the app is ready to run with all of it’s depndecies, it’s packaged up in the blob store and DEA fetch it for execution App meta data – CC tells the DEA tells this is a java app * Multiple node types Multiple instances of most node type * Single node deployment model * Multi node deployment model * CPI ( Cloud Provider Interface)支持多种 IaaS BOSH通过CPI管理IaaS层资源（虚拟机、虚拟存储、虚拟网络等） * BOSH调用CPI动态生成虚拟机 Inner Shell – 被管理的部分 * Stemcell提供虚拟机模板 Deployment manifest定义部署细节