www.oasis-open.org
TOSCA*
& The Government Sector
* Topology and Orchestration Specification for Cloud Applications
云应用程序的拓扑结构和业务流程规范技术委员会
Tobias Kunze, Red Hat
Motivation
动机
Why Standards?
Government Needs
政府需求
Outsourcing外包服务
⇦
Agility敏捷
⇦
Cost Savings
节约开支
Quality
质量
Vendor Neutrality
供应商中立
⇦
⇦
Standards Provide
提供的标准
Defined Contracts
定义的合同
Speed through Reuse
加速重复使用
Insurance against
Failure确保减低失败
State-of-the-Art
Services周到的服务
Vendor Neutrality
供应商中立
Interoperability互操作性
⇦
Interoperability互操作性
⇦
Use Cases
案例
Use Cases Addressed
案例分析研究
‣ Deploy配置: Dependency resolution, Install,
Configuration, Orchestration
依赖性决议,安装,配置,业务流程
‣ Operate操作: Start, Stop, Patch, Scale
开始,停止,补丁,规范
‣ Migrate迁移: Disaster Recovery, GeoRedundancy, Cost Optimization, Promotion
灾难恢复,Geo-冗余 ,成本优化,提升
Other Scenarios:
Creating a Market For Cloud Applications
其它情况:为云计算应用程序建立一个市场
3. Browse
and Select浏览和选择
Service
Catalog
5. Use使用
4. Provision
规定
服务种类
Service Instance
服务保证
2. Publish出版
Service Template
服务模板
1. Create用户
6
How it Works
如何工作
What Is “(Cloud) Service Template” All About?
”云服务模板”是关于什么的?
A new language (“metamodel”) to specify指定一个新的语言

Node

Types
节点类型

Rel.ship
Types
关系类型

Group
Template

团体模板
the building blocks of your application应用程序的基石
the management functions these building blocks offer to be
managed 这些基石提供的用来管理的管理方程
Topology
the relations between these building blocks这些基石之间的关系
拓扑
(Template)
Collection of node types and relationship types
(for reuse purposes)节点点类型和关系类型的集合(为重复使用)
the procedures to follow in order to manage your application
as a whole为了全面管理你的应用程序而需遵从的程序
(Cloud) Service Template

Plans
计划
8
Graphical Representation图形化表达
Service Template服务
Node Types节点类型
Topology Template拓扑
Node Type
Properties
Relationship
Template
模板关系
Interfaces
type for
type for
Node
Template
节点模板
Properties
Relationship Types关系类型
Relationship Type
Plans计划
Group
Template
团体模板
9
How Plans and Nodes Fit Together
计划和节点如何结合在一起
…
Create
Cluster建立
…
…refers to…
…指…

Task of a plan refers to interface of a topology node
一个计划的任务指的是一个拓扑节点的界面

Topology node specifies all interfaces offered to manage it
拓扑节点指被分配来管理它的所有界面
Interface is bound to a concrete implementation
界面被绑定到一个具体的实施

WebSphere Cell
…

…bound to…
…势必…

Script
------------------------------------------------------------------

Implementation already available at providers side, or
实施已经在提供商方存在
Implementation is copied from somewhere, or
或者实施可以从其它地方复制过来
A standardized Cloud Interface (Iaas, PaaS, SaaS) is used, or ...
标准化的云界面在使用(Iaas, PaaS, SaaS) ,或…
10
More Colorful…
再加点色彩,从另个角度讲…
Topology
拓扑结构
Orchestration (Plans)
业务流程(计划)
11
Refined View
更细致的解说
How ...如何
----
BPEL
EAR (EJBs,…)
The business processes of The business logic of the
the application (BPEL,
application, e.g. EJBs,
BPMN, Human Tasks,…)应 JSPs, JPEG,…
应用程序的商业逻辑
用程序的商业过程
OVF
OVF
OVF
The images of the
middleware (DB2,
Websphere,…) required
to run the application
运行这个应用程序要求
的中间件图像
---- ------- ----
----
With ...用什么
----
---Scripts
----
(Existing) scripts used by
task of plans to manage
the cloud application
计划任务用来管理本云
应用程序而
调用的(现有的)程序
Workflows
(Existing) workflows used by
subprocess-tasks of plans
子任务计划调用的(现有的)工作
流
12
Baseline
基本点

TOSCA is modular and composable
TOSCA是模块化的和可组合的

It does not reinvent the wheel, i.e. it uses existing
standards wherever possible
它并不是重新开创这个领域,例如,它会尽量利用现有的标准

E.g. WSDL, BPMN, OVF,…
13
The Service Template
服务模板
<ServiceTemplate …>
YAML as well
<Extensions/>?
<Import />*
<Types/>?
(
<TopologyTemplate/>
|
<TopologyTemplateReference/>
)?
<NodeTypes/>?
<RelationshipTypes/>?
<Plans/>?
</ServiceTemplate>
14
Effort
付出
History
历史
Industry consortium formed产业界联合(IBM, SAP, Red Hat, CA,
Citrix, WSO2)
Addt’l members另外的成员: Capgemini, Cisco, Citrix, EMC, NetApp, PwC,
Software AG, Virtunomic
Charter submitted to
OASIS
宣言发到OSIS
Renamed TOSCA
成立TOSCA
May 2011
2011年5月
Call for Participation
呼吁参加
First TC meeting
第一次会议
Sep 2011 Oct 2011
Nov 2011
Dec 2011
2011年9月 2011年10月 2011年11月 2011年12月
Members
TOSCA标准委员会成员
Future
未来计划
Public Draft
公示草案
Public
Review
公示
Initial Draft
起始草案
Mar 2012
2012年3月
Draft 2
第二版
Candidate
Standard
候选标准
Candidate
Standard
候选标准
Public
Review
公示
… Draft n
…第n版
Jul 2012 Aug 2012 Sep 2012 Oct 2012 Nov 2012 Dec 2012
6月
10月
11月
12月
8月
9月
Q&A
回答问题
Appendix: Examples
附:事例
Example: High Level View
事例:高层面看
BPEL Files
Uses
使用
WSDL Files
implemented
by
实施
deployedOn
部署
EJBs
deployedOn
部署
deployedOn
部署
Node Template
节点模板
Relationship Template
关系模板
WebSphere
Process
Server
Requires要求
…and this is a
WebSphere
Cell
bit more
clomplex…
requires
DB2 Server
21
Example实例:
WebSphere Cell Refined细节
WebSphere
Cell
DB2 Server
Properties, e.g.:
WAS install location,
Profile name, Node
name
属性，如WAS安装，
配置文件名，节点名
WebSphere Cell
DB2 Server
1..*
IHS
Node
WAS ND
DeployMgr
Node
WAS ND
Managed Node
1..*
DB2 Database
Instance
Cluster
exists
"cluster"
"database"
Application
Server Instance
Properties, e.g.:
ports, servername,
weight
属性，如端口，服务
器名，重量
22
Example: Overall Topology Template
拓扑模板总体观
BPEL Files
WSDL Files
WebSphere
Process
Server
EJBs
WebSphere Cell
1..*
IHS
Node
WAS ND
DeployMgr
Node
WAS ND
Managed Node
Cluster
1..*
DB2 Server
Application Server
Instance
DB2 Database
Instance
23
Example实例: Amazon亚马逊
BPEL Files
Uses使用
WSDL Files
implemented
by
实施
deployedOn部署
WebSphere
Process
deployedOn部署 Server
Amazon
requires
EJBs
deployedOn部署WebSphere
Cell
requires
DB2 Server
24
…Which is the “Interoperable Service Templates” Scenario
(see later)
也就是“可互操作服务模板”场景
BPEL Files
BPEL文件
WSDL Files
WSDL文件
WebSphere
Process
Server
EJBs
Amazon
WebSphere
Cell
DB2 Server
DB2服务器
25
Example: Amazon – Refined Scenario
亚马逊实例-细节描述
WSDL Files
Implemented by实施
On Premise
在经营场所
EJBs
deployedOn
WebSphere
Cell
requires
DB2 Server
(ApplicationDat
a)
Uses使用
BPEL Files
deployedOn
WebSphere
Process
Server
requires
Amazon
亚马逊
WebSphere
Cell
requires
DB2 Server
(WAS Data)
26
Example: Amazon – Refined Scenario
(Details)亚马逊实例-细节描述

The Web Services required by the BPEL
processes are hosted on premise

BPEL进程要求的网络服务托管在经营场所

The EJBs (e.g.) implementing the Web
Services are deployed on WebSphere
hosted on premise实施网络服务的EJB部署在
进程服务器等在亚马逊的EC2上安装和管理

WebSphere,托管在经营场所.

The application data of the WS/EJBs are
stored in DB2 on premise
在经营场所储藏的DB2 WS/EJB应用程序数据
 This ensures compliance with data
privacy/confidentiality rules这可以确保遵守数据
uses
WSDL Files
的隐私权/保密规则
Implemented by
EJBs
On Premise
deployedOn
WebSphere
Cell
requires
DB2 Server
(ApplicationData)
Process Server etc is installed and
managed at Amazon’s EC2
The corresponding middleware is
provided as AMIs
相应的中间件以AMI形式提供


The process models are deployed on
Process Server进程模型在进程服务器上部署
Process Server maintains state data in
DB2 also running in EC2
进程服务器在DB2上保存数据,也在EC2上运行
BPEL Files
deployedOn
WebSphere
Process
Server
Amazon
requires
WebSphere
Cell
requires
DB2 Server
(WAS Data)
27
Example: Reusing Existing Services
实例：重新使用现有服务

„somewhere1“
BPEL Files
WS2
bound to
„somewhere2“
间件在所知云端进行管理
Uses使用
WS1

WSDL Files
deployedOn部署
WSn
WebSphere
Process
deployedOn部署 Server
WebSphere
Cell


Requires要求
DB2 Server
„somewheren“
The Web Services needed by the
BPEL processes are reused
“wherever” they are
网络服务所需的BPEL流程可以在任何
地方再利用
Requires要求
…
Only the processes and required
middleware is managed on a
“known” cloud只有流程和要求的中
The existing Web Services are
bound to the BPEL process by the
established mechanisms
现存的网络服务被建立的机制绑定到
BPEL流程
Specifying binding details can be
part of the build plan of the
application’s Service Template
(.ste)
绑定细节可以是建立计划的应用程序
服务模板的一部分
28
Example: SAP
SAP实例
BPEL Files
Uses使用
deployedOn
WSDL Files
implemented
by实施
SAP Workflow
deployedOn部属
SAP
requires
EJB
deployedOn部属
Netweaver
requires
Oracle
29
Example: Microsoft
微软实例
BPEL Files
Uses使用
deployedOn
WSDL Files
implemented
by实施
deployedOn部署
BizTalk
Azure
requires
.Net
Assemblies
deployedOn部署
.Net
requires
SQL Server
30
Example: Different Hosters of a Particular Application
某一个应用程序的不同托管主机
BPEL Files
Uses使用
IBM
deployedOn部署
WSDL Files
implemented
by实施
SAP Workflow
AT&T
T-Systems
deployedOn部署
Requires要求
EJB
...
deployedOn部署
Netweaver
Requires要求
Oracle
31