HyperLedger Fabric(First-Network)

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基于官方脚本快速部署第一个fabric网络,本次实验在vagrant创建的虚拟机中执行。

实验环境搭建

本文假设你已经安装好vagrant,当你出现如下图所示的信息之后,即可执行下一步。

image-20200124111356750

若还未安装vagrant 请前往https://www.vagrantup.com/ 进行安装后进行下一步操作

创建虚拟机

  1. 创建vagrant配置文件,这里指定操作系统为centos7

    vagrant init centos/7
    复制代码

​ 执行后,将在文件夹下创建Vagrantfile 配置文件

image-20200124112752291

  1. 编写启动脚本 bootstrap.sh

    #!/usr/bin/bash
    sudo su
    echo "nameserver 8.8.8.8" >> /etc/resolv.conf
    sleep 3s
    yum install -y epel-release
    yum install -y vim
    yum install -y golang
    
    yum remove docker docker-common docker-selinux docker-engine
    yum install -y yum-utils device-mapper-persistent-data lvm2
    yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
    yum makecache fast
    yum -y install docker-ce
    yum -y install docker-compose
    service docker start
    
    mkdir -p /etc/docker
    echo {\"registry-mirrors\": [\"https://8w1wqmsz.mirror.aliyuncs.com\"]} > /etc/docker/daemon.json
    service docker restart
    
    echo "export GOPROXY=https://goproxy.io,direct" >> /etc/profile
    source /etc/profile
    复制代码
  2. 修改Vagrantfile

    # -*- mode: ruby -*-
    # vi: set ft=ruby :
    
    # All Vagrant configuration is done below. The "2" in Vagrant.configure
    # configures the configuration version (we support older styles for
    # backwards compatibility). Please don't change it unless you know what
    # you're doing.
    Vagrant.configure("2") do |config|
      # The most common configuration options are documented and commented below.
      # For a complete reference, please see the online documentation at
      # https://docs.vagrantup.com.
    
      # Every Vagrant development environment requires a box. You can search for
      # boxes at https://vagrantcloud.com/search.
      config.vm.box = "centos/7"
    
      # Disable automatic box update checking. If you disable this, then
      # boxes will only be checked for updates when the user runs
      # `vagrant box outdated`. This is not recommended.
      # config.vm.box_check_update = false
    
      # Create a forwarded port mapping which allows access to a specific port
      # within the machine from a port on the host machine. In the example below,
      # accessing "localhost:8080" will access port 80 on the guest machine.
      # NOTE: This will enable public access to the opened port
      # config.vm.network "forwarded_port", guest: 80, host: 8080
    
      # Create a forwarded port mapping which allows access to a specific port
      # within the machine from a port on the host machine and only allow access
      # via 127.0.0.1 to disable public access
      # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
    
      # Create a private network, which allows host-only access to the machine
      # using a specific IP.
      # config.vm.network "private_network", ip: "192.168.33.10"
    
      # Create a public network, which generally matched to bridged network.
      # Bridged networks make the machine appear as another physical device on
      # your network.
      # config.vm.network "public_network"
    
      # Share an additional folder to the guest VM. The first argument is
      # the path on the host to the actual folder. The second argument is
      # the path on the guest to mount the folder. And the optional third
      # argument is a set of non-required options.
      # config.vm.synced_folder "../data", "/vagrant_data"
    
      # Provider-specific configuration so you can fine-tune various
      # backing providers for Vagrant. These expose provider-specific options.
      # Example for VirtualBox:
      #
      # config.vm.provider "virtualbox" do |vb|
      #   # Display the VirtualBox GUI when booting the machine
      #   vb.gui = true
      #
      #   # Customize the amount of memory on the VM:
      #   vb.memory = "1024"
      # end
      #
      # View the documentation for the provider you are using for more
      # information on available options.
    
      # Enable provisioning with a shell script. Additional provisioners such as
      # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
      # documentation for more information about their specific syntax and use.
       config.vm.provision "shell", path: "bootstrap.sh"
    end
    复制代码
  3. 启动虚拟机

    vagrant up
    复制代码

搭建fabric网络

在完成虚拟机创建之后,使用vagrant ssh即可进入到虚拟机

# 进入到虚拟机
vagrant ssh
# 切换root 用户
sudo su
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获取源码

go的环境已经通过bootstrap.sh配置好了,接下来获取所需的项目源码

  1. Fabric 源码

    go get github.com/hyperledger/fabric
    复制代码
  2. Fabric-samples 源码

    go get github.com/hyperledger/fabric-samples
    复制代码

###编译工具cryptogen、configtxgen

进入到fabric源码中切换到 release-1.4 分支

git checkout release-1.4
复制代码
  1. 编译安装cryptogen

    进入到 fabric/common/tools/cryptogen 执行 go install 生成 cryptogen二进制工具

    go install
    复制代码
  2. 编译安装configtxgen工具

    进入到 fabric/common/tools/configtxgen 执行 go install 生成 configtxgen二进制工具

    go install
    复制代码

修改环境变量

修改/etc/profile文件,添加环境变量

export PATH=$PATH:/root/go/bin
#source生效
source /etc/profile
复制代码

启动fabric网络

在上述操作都完成后,fabric所需环境已经配置好了,接下启动fabric网络。

  1. 进入到fabric-samples下,切换到 release-1.4

    git checkout release-1.4
    复制代码
  2. 进入到fabric-samples/first-network目录下

    image-20200124135923070

    这里将使用 byfn.sh 脚本启动fabric网络,执行如下命令。

    ./byfn.sh up
    复制代码

    后面需询问你,输入y即可

    image-20200124140606163

  3. 当终端输出如下图所示,即完成了fabric网络的启动。

    image-20200124142821103

    注意:当你执行./byfn.sh up 后,中间过程有任何一步的报错,都需要执行 ./byfn.sh down 后才能再次执行./byfn.sh up。

  4. Byfn.sh 还有如下操作,这里我就不详细说明了。

    image-20200124143906505

总结

本次搭建fabric网络是基于官方一键部署脚本搭建的1.4版本的fabric网络,只适合开发时使用,不建议生产环境下使用,后面会带大家搭建生产级fabric网络。

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