首页手记实战-超级账本 fabric 环境搭建，创建我们的第一条网络

实战-超级账本 fabric 环境搭建，创建我们的第一条网络

标签：

Node.js 区块链 Docker

环境说明：

系统：macOS 10.13.2

文：谦益

1、安装 Node.js 以及 npm

在nodejs官网直接下载安装包就好了

https://nodejs.org/en/

2、安装Python

这里他不支持Python3.x 只支持2.7，这个还好，mac自带的Python就是2.7所以不需要处理。

3、安装docker

打开官方的下载地址：

https://www.docker.com/community-edition#/mac

找到 Download from Docker Store 点击旁边的蓝色下载箭头就能下载了。

下载后打开拖到你的应用里面就好。

4、安装go

打开 go 的官方下载地址：

https://golang.org/dl/

点击就能下载了，下载后直接打开，下一步下一步就好了。

这里我们安装的版本是1.10.1，安装完后我们需要进行一个环境变量配置：

1、打开终端 cd ~ 用户主目录
2、vim .bash_profile 编辑.bash_profile文件

3、编辑内容如下:

export GOPATH=这里指定go的工作目录
export GOBIN=这里指定go的安装目录 定位到 bin 文件夹
export PATH=$PATH:$GOBIN

4、重新生效.bash_profile文件，命令如下：
```
source ~/.bash_profile
```
到这里你重新再启动一个终端，输入 go env就能看到最新的环境变量了。

这里批注下：
如果你不知道你的go安装目录在哪里，你在安装完下在的pkg包后，输入 go env就能看到默认的go环境变量配置了，此时里面的GOROOT就是安装目录。

5、执行安装脚本

从官网http://hyperledger-fabric.readthedocs.io/en/latest/install.html可以看到，安装需要执行一个脚本：

curl -sSL https://goo.gl/6wtTN5 | bash -s 1.1.0

这个脚本需要科学上网，如果不能科学上网的话，我把脚本下载下来了。

#!/bin/bash
#
# Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
#

# if version not passed in, default to latest released version
export VERSION=1.1.0
# if ca version not passed in, default to latest released version
export CA_VERSION=$VERSION
# current version of thirdparty images (couchdb, kafka and zookeeper) released
export THIRDPARTY_IMAGE_VERSION=0.4.6
export ARCH=$(echo "$(uname -s|tr '[:upper:]' '[:lower:]'|sed 's/mingw64_nt.*/windows/')-$(uname -m | sed 's/x86_64/amd64/g')" | awk '{print tolower($0)}')
#Set MARCH variable i.e ppc64le,s390x,x86_64,i386
MARCH=`uname -m`

printHelp() {
  echo "Usage: bootstrap.sh [<version>] [<ca_version>] [-d -s -b]"
  echo
  echo "-d - bypass docker image download"
  echo "-s - bypass fabric-samples repo clone"
  echo "-b - bypass download of platform-specific binaries"
  echo
  echo "e.g. bootstrap.sh 1.1.1 -s"
  echo "would download docker images and binaries for version 1.1.1"
}

dockerFabricPull() {
  local FABRIC_TAG=$1
  for IMAGES in peer orderer ccenv javaenv tools; do
      echo "==> FABRIC IMAGE: $IMAGES"
      echo
      docker pull hyperledger/fabric-$IMAGES:$FABRIC_TAG
      docker tag hyperledger/fabric-$IMAGES:$FABRIC_TAG hyperledger/fabric-$IMAGES
  done
}

dockerThirdPartyImagesPull() {
  local THIRDPARTY_TAG=$1
  for IMAGES in couchdb kafka zookeeper; do
      echo "==> THIRDPARTY DOCKER IMAGE: $IMAGES"
      echo
      docker pull hyperledger/fabric-$IMAGES:$THIRDPARTY_TAG
      docker tag hyperledger/fabric-$IMAGES:$THIRDPARTY_TAG hyperledger/fabric-$IMAGES
  done
}

dockerCaPull() {
      local CA_TAG=$1
      echo "==> FABRIC CA IMAGE"
      echo
      docker pull hyperledger/fabric-ca:$CA_TAG
      docker tag hyperledger/fabric-ca:$CA_TAG hyperledger/fabric-ca
}

: ${CA_TAG:="$MARCH-$CA_VERSION"}
: ${FABRIC_TAG:="$MARCH-$VERSION"}
: ${THIRDPARTY_TAG:="$MARCH-$THIRDPARTY_IMAGE_VERSION"}

samplesInstall() {
  # clone (if needed) hyperledger/fabric-samples and checkout corresponding
  # version to the binaries and docker images to be downloaded
  if [ -d first-network ]; then
    # if we are in the fabric-samples repo, checkout corresponding version
    echo "===> Checking out v${VERSION} branch of hyperledger/fabric-samples"
    git checkout v${VERSION}
  elif [ -d fabric-samples ]; then
    # if fabric-samples repo already cloned and in current directory,
    # cd fabric-samples and checkout corresponding version
    echo "===> Checking out v${VERSION} branch of hyperledger/fabric-samples"
    cd fabric-samples && git checkout v${VERSION}
  else
    echo "===> Cloning hyperledger/fabric-samples repo and checkout v${VERSION}"
    git clone -b master https://github.com/hyperledger/fabric-samples.git && cd fabric-samples && git checkout v${VERSION}
  fi
}

binariesInstall() {
  echo "===> Downloading version ${FABRIC_TAG} platform specific fabric binaries"
  curl https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric/hyperledger-fabric/${ARCH}-${VERSION}/hyperledger-fabric-${ARCH}-${VERSION}.tar.gz | tar xz

  echo "===> Downloading version ${CA_TAG} platform specific fabric-ca-client binary"
  curl https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric-ca/hyperledger-fabric-ca/${ARCH}-${VERSION}/hyperledger-fabric-ca-${ARCH}-${VERSION}.tar.gz | tar xz
  if [ $? != 0 ]; then
     echo
     echo "------> ${CA_TAG} fabric-ca-client binary is not available to download  (Avaialble from 1.1.0-rc1) <----"
     echo
   fi
}

dockerInstall() {
  which docker >& /dev/null
  NODOCKER=$?
  if [ "${NODOCKER}" == 0 ]; then
      echo "===> Pulling fabric Images"
      dockerFabricPull ${FABRIC_TAG}
      echo "===> Pulling fabric ca Image"
      dockerCaPull ${CA_TAG}
      echo "===> Pulling thirdparty docker images"
      dockerThirdPartyImagesPull ${THIRDPARTY_TAG}
      echo
      echo "===> List out hyperledger docker images"
      docker images | grep hyperledger*
  else
    echo "========================================================="
    echo "Docker not installed, bypassing download of Fabric images"
    echo "========================================================="
  fi
}

DOCKER=true
SAMPLES=true
BINARIES=true

# Parse commandline args pull out
# version and/or ca-version strings first
if echo $1 | grep -q '\d'; then
  VERSION=$1;shift
  if echo $1 | grep -q '\d'; then
    CA_VERSION=$1;shift
  fi
fi

# then parse opts
while getopts "h?dsb" opt; do
  case "$opt" in
    h|\?)
      printHelp
      exit 0
    ;;
    d)  DOCKER=false
    ;;
    s)  SAMPLES=false
    ;;
    b)  BINARIES=false
    ;;
  esac
done

if [ "$SAMPLES" == "true" ]; then
  echo
  echo "Installing hyperledger/fabric-samples repo"
  echo
  samplesInstall
fi
if [ "$BINARIES" == "true" ]; then
  echo
  echo "Installing Hyperledger Fabric binaries"
  echo
  binariesInstall
fi
if [ "$DOCKER" == "true" ]; then
  echo
  echo "Installing Hyperledger Fabric docker images"
  echo
  dockerInstall
fi

可以把这个脚本保存为 install.sh 在你要安装的目录下面，再执行：

bash ./install.sh

这个脚本会去Docker Hub上下载相应的镜像到本地的docker里面。
执行完毕后，会列出刚下载的进行。

同时，还会去下载对应平台的二进制文件，也就是bin目录。

当着脚本执行完毕我们还需要把，bin目录加到 PATH 里面，执行下面的命令：

export PATH=你下载的项目绝对地址/bin:$PATH

6、创建第一条网络

我们参照文档：

http://hyperledger-fabric.readthedocs.io/en/latest/build_network.html

到fabric-samples/first-network目录下面：
```
cd fabric-samples/first-network
```
创建我们的第一条网络
这里需要说明下，为了保险起见，先把之前的网络关闭了，命令如下：
```
./byfn.sh -m down
```
再创建
```
./byfn.sh -m generate
```

当看到下面的这个提示，说明就创建成功了。