HyperLedger Fabric(First-Network)

HyperLedger Fabric(First-Network)

基於官方腳本快速部署第一個fabric網絡，本次實驗vagrant創建的虛擬機中執行。

實驗環境搭建

本文假設你已經安裝好vagrant，當你出現如下圖所示的信息之後，即可執行下一步。

若還未安裝vagrant 請前往https://www.vagrantup.com/ 進行安裝後進行下一步操作

創建虛擬機

1. 創建vagrant配置文件，這裏指定操作系統爲centos7

   vagrant init centos/7
   

​ 執行後，將在文件夾下創建Vagrantfile 配置文件

2. 編寫啓動腳本 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
   

3. 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     # `vagrant box outdated`.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
   

4. 啓動虛擬機

   vagrant up
   

搭建fabric網絡

在完成虛擬機創建之後，使用vagrant ssh即可進入到虛擬機

# 進入到虛擬機
vagrant ssh
# 切換root 用戶
sudo su

獲取源碼

go的環境已經通過bootstrap.sh配置好了，接下來獲取所需的項目源碼

1. Fabric 源碼

   go get github.com/hyperledger/fabric
   

2. Fabric-samples 源碼

   go get github.com/hyperledger/fabric-samples
   

編譯工具cryptogen、configtxgen

進入到fabric源碼中切換到 release-1.4 分支

git checkout release-1.4

1. 編譯安裝cryptogen

   進入到 fabric/common/tools/cryptogen 執行 go install 生成 cryptogen二進制工具

   go install
   

2. 編譯安裝configtxgen工具

   進入到 fabric/common/tools/configtxgen 執行 go install 生成 configtxgen二進制工具

   go install
   

修改環境變量

修改/etc/profile文件，添加環境變量

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

啓動fabric網絡

在上述操作都完成後，fabric所需環境已經配置好了，接下啓動fabric網絡。

1. 進入到fabric-samples下，切換到 release-1.4

   git checkout release-1.4
   

2. 進入到fabric-samples/first-network目錄下

   這裏將使用 byfn.sh 腳本啓動fabric網絡，執行如下命令。

   ./byfn.sh up
   

   後面需詢問你，輸入y即可

3. 當終端輸出如下圖所示，即完成了fabric網絡的啓動。

   注意：當你執行./byfn.sh up 後，中間過程有任何一步的報錯，都需要執行 ./byfn.sh down 後才能再次執行./byfn.sh up。

4. Byfn.sh 還有如下操作，這裏我就不詳細說明了。

總結

本次搭建fabric網絡是基於官方一鍵部署腳本搭建的1.4版本的fabric網絡，只適合開發時使用，不建議生產環境下使用，後面會帶大家搭建生產級fabric網絡。