Hyperledger Fabric如何实现基于ubuntu系统部署网络

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Hyperledger Composer 网络要素

Business Network Definition

在我们动手执行代码之前，先来了解一下Business Network Definition的概念。因为这个概念贯穿在这个网络系统中。BND为区块链定义了 数据模型， 交易逻辑 和 访问控制规则 。我们可以部署bna包到Fabric网络，为了生成bna，我们需要提前生成：

• a set of model files

• a set of JavaScript files

• an Access Control file

所有的这些文件，都可以理解是对我们的网络的描述文件。网络根据我们的描述，来执行。

BusinessNetworkFiles

那我们就动手搭建，并且部署一个网络。 下面的代码执行于ubuntu系统。

1

Setp 1 创建一个business network应用

（1）从命令行，创建一个新的dir，并且cd到该dir

amy@amy-wu:~/pg/sandbox/bnd$ yo hyperledger-composer:businessnetworkWelcome to the business network generator? Business network name: tutorial-network? Description: Here is a hello world example? Author name:  Amy Wu? Author email: AmyWu@123abc.com? License: Apache-2.0? Namespace: org.example.biznet? Do you want to generate an empty template network? No: generate a populated sample network   create package.json   create README.md   create models/org.example.biznet.cto   create permissions.acl   create .eslintrc.yml   create features/sample.feature   create features/support/index.js   create test/logic.js   create lib/logic.jsamy@amy-wu:~/pg/sandbox/bnd$

（2）查看刚刚的指令为了创建的文件

amy@amy-wu:~/pg/sandbox/bnd$ tree.└── tutorial-network    ├── features    │   ├── sample.feature    │   └── support    │       └── index.js    ├── lib    │   └── logic.js    ├── models    │   └── org.example.biznet.cto    ├── package.json    ├── permissions.acl    ├── README.md    └── test        └── logic.js6 directories, 8 filesamy@amy-wu:~/pg/sandbox/bnd$

2

Setp 2** 查看 org.example.biznet.cto 和 permission.acl**

org.example.biznet.cto 定义了网络里面的参与方，资产等信息

permission.acl 定义了访问权限

3

Setp 3 打包生成bna包

（1）cd到 /tutorial-network 目录下

需要提前安装composer环境

升级Fabric Composer版本

• 错误提示

Cannot use v0.16.6 version of composer with fabric 1.1, v0.19 or higher is required

• 确认版本

composer -vv0.19.10

• 卸载现有版本

npm uninstall -g composer-clinpm uninstall -g composer-rest-servernpm uninstall -g generator-hyperledger-composer

• 重新安装最新版本版本

npm install -g composer-clinpm install -g composer-rest-servernpm install -g generator-hyperledger-composeramy@amy-wu:~/pg/sandbox/bnd/tutorial-network$ composer archive create -t dir -n .Creating Business Network ArchiveLooking for package.json of Business Network Definition    Input directory: /home/amy/pg/sandbox/bnd/tutorial-networkFound:    Description: Here is a hello world example    Name: tutorial-network    Identifier: tutorial-network@0.0.1Written Business Network Definition Archive file to     Output file: tutorial-network@0.0.1.bnaCommand succeeded

（2）查看生成的bna文件

amy@amy-wu:~/pg/sandbox/bnd$ tree.└── tutorial-network    ├── features    │   ├── sample.feature    │   └── support    │       └── index.js    ├── lib    │   └── logic.js    ├── models    │   └── org.example.biznet.cto    ├── package.json    ├── permissions.acl    ├── README.md    ├── test    │   └── logic.js    └── tutorial-network@0.0.1.bna 新生成的文件6 directories, 9 files

4

Setp 4 部署business network

在做部署之前，先要启动一个Fabric网络。

（1）下载fabric-dev-servers.zip

mkdir fabric-dev-servers && cd fabric-dev-serverscurl -O https://raw.githubusercontent.com/hyperledger/composer-tools/master/packages/fabric-dev-servers/fabric-dev-servers.zipunzip fabric-dev-servers.zip

（2）第一次启动Fabric网络的时候

cd fabric-dev-servers./downloadFabric.sh./startFabric.sh./createPeerAdminCard.sh

（3）结束的时候

./stopFabric.sh ./teardownFabric.sh

（4）初始化网路

amy@amy-wu:~/pg/sandbox/bnd/tutorial-network$ composer network install --card PeerAdmin@hlfv1 --archiveFile tutorial-network@0.0.1.bna✔ Installing business network. This may take a minute...Successfully installed business network tutorial-network, version 0.0.1Command succeededamy@amy-wu:~/pg/sandbox/bnd/tutorial-network$

（5）查看docker containers

docker container lsCONTAINER ID        IMAGE                                     COMMAND                  CREATED             STATUS              PORTS                                            NAMES27b30f42cc5e        hyperledger/fabric-peer:x86_64-1.1.0      "peer node start"        5 minutes ago       Up 5 minutes        0.0.0.0:7051->7051/tcp, 0.0.0.0:7053->7053/tcp   peer0.org1.example.com2f62650005f4        hyperledger/fabric-orderer:x86_64-1.1.0   "orderer"                5 minutes ago       Up 5 minutes        0.0.0.0:7050->7050/tcp                           orderer.example.com96ec8b462e0e        hyperledger/fabric-couchdb:x86_64-0.4.6   "tini -- /docker-ent…"   5 minutes ago       Up 5 minutes        4369/tcp, 9100/tcp, 0.0.0.0:5984->5984/tcp       couchdbecd55c74cb76        hyperledger/fabric-ca:x86_64-1.1.0        "sh -c 'fabric-ca-se…"   5 minutes ago       Up 5 minutes        0.0.0.0:7054->7054/tcp                           ca.org1.example.com

（6）启动网络

amy@amy-wu:~/pg/sandbox/bnd/tutorial-network$ composer network start --networkName tutorial-network --networkVersion 0.0.1 --networkAdmin admin --networkAdminEnrollSecret adminpw --card PeerAdmin@hlfv1 --file networkadmin.cardStarting business network tutorial-network at version 0.0.1Processing these Network Admins:     userName: admin✔ Starting business network definition. This may take a minute...Successfully created business network card:    Filename: networkadmin.cardCommand succeeded

（7）导入网络管理员身份

amy@amy-wu:~/pg/sandbox/bnd/tutorial-network$ composer card import --file networkadmin.cardSuccessfully imported business network card    Card file: networkadmin.card    Card name: admin@tutorial-networkCommand succeeded

（8）测试

amy@amy-wu:~/pg/sandbox/bnd/tutorial-network$ composer network ping --card admin@tutorial-networkThe connection to the network was successfully tested: tutorial-network    Business network version: 0.0.1    Composer runtime version: 0.19.10    participant: org.hyperledger.composer.system.NetworkAdmin#admin    identity: org.hyperledger.composer.system.Identity#d9e43201ca1bcc328e0e81ceaf96caf4f113019f41d26d292699151a50d0a3acCommand succeeded

5

Setp 5 生成REST server

amy@amy-wu:~$ composer-rest-server? Enter the name of the business network card to use: admin@tutorial-network? Specify if you want namespaces in the generated REST API: never use namespaces? Specify if you want to use an API key to secure the REST API: No? Specify if you want to enable authentication for the REST API using Passport: Yes? Specify if you want to enable multiple user and identity management using wallets: No? Specify if you want to enable event publication over WebSockets: Yes? Specify if you want to enable TLS security for the REST API: NoTo restart the REST server using the same options, issue the following command:   composer-rest-server -c admin@tutorial-network -n never -a true -w trueDiscovering types from business network definition ...Discovered types from business network definitionGenerating schemas for all types in business network definition ...Generated schemas for all types in business network definitionAdding schemas for all types to Loopback ...Added schemas for all types to LoopbackWeb server listening at: http://localhost:3000Browse your REST API at http://localhost:3000/explorer

查看API：http://localhost:3000/explorer

6

Setp 6 生成应用

amy@amy-wu:~/pg/sandbox/bnd/tutorial-network$ yo hyperledger-composer:angularWelcome to the Hyperledger Composer Angular project generator? Do you want to connect to a running Business Network? Yes? Project name: angular-app? Description: Hyperledger Composer Angular project? Author name: Amy WU? Author email: 123@gmail.com? License: Apache-2.0? Name of the Business Network card: admin@tutorial-network? Do you want to generate a new REST API or connect to an existing REST API?  Connect to an existing REST API? REST server address: http://localhost? REST server port: 3000? Should namespaces be used in the generated REST API? Namespaces are not usedCreated application!Completed generation process   create app.jsBinary found at /home/amy/pg/sandbox/bnd/tutorial-network/angular-app/node_modules/node-sass/vendor/linux-x64-59/binding.nodeTesting binaryBinary is finenpm notice created a lockfile as package-lock.json. You should commit this file.npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules/fsevents):npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})added 1162 packages in 145.973sApplication generated

（1）启动应用

amy@amy-wu:~/pg/sandbox/bnd/tutorial-network/angular-app$ npm start> angular-app@0.0.1 start /home/amy/pg/sandbox/bnd/tutorial-network/angular-app> ng serve --proxy-config proxy.conf.js --host 0.0.0.0** NG Live Development Server is running on http://0.0.0.0:4200 ** 10% building modules 4/4 modules 0 active[HPM] Proxy created: [ '/auth', '/api' ]  ->  http://localhost:3000[HPM] Proxy created: /  ->  http://localhost:3000Hash: a0d3dc89fcbecd8aa802 Time: 12249mschunk    {0} polyfills.bundle.js, polyfills.bundle.js.map (polyfills) 270 kB {5} [initial] [rendered]chunk    {1} main.bundle.js, main.bundle.js.map (main) 101 kB {4} [initial] [rendered]chunk    {2} styles.bundle.js, styles.bundle.js.map (styles) 184 kB {5} [initial] [rendered]chunk    {3} scripts.bundle.js, scripts.bundle.js.map (scripts) 439 kB {5} [initial] [rendered]chunk    {4} vendor.bundle.js, vendor.bundle.js.map (vendor) 4.12 MB [initial] [rendered]chunk    {5} inline.bundle.js, inline.bundle.js.map (inline) 0 bytes [entry] [rendered]webpack: Compiled successfully.

（2）查看应用

http://0.0.0.0:4200

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