Fabric 环境安装
我安装的时候遇到很多问题，也不会解决，我就是将fabric文件夹删除重新下，然后一步步再按，反正最后是能运行。
官网的安装方法http://hyperledger-fabric.readthedocs.io/en/latest/build_network.html
1.Go语言安装
sudo apt-get install golang
sudo vim ~/.bashrc
结尾输入以下
export GOBIN=$GOROOT/bin
export PATH=$PATH:$GOBIN
export GOPATH=$HOME/MyGo
重启终端输入go env 查看配置是否成功
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具体环境变量配置参考window上的
2.Docker安装
sudo apt install docker.io //docker安装
sudo usermod -aG docker $USER //更改用户权限
sudo service docker start //启动docker
chmod 777 /var/run/docker.sock //进入root操作
3.Docker-compose安装
sudo apt install python-pip
sudo pip install docker-compose
4.Fabric安装
4.1.Fabric源码下载
先在GOPATH路径下建立以下文件夹
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进入hyperLedger文件夹下在终端输入：
git clone https://github.com/hyperledger/fabric.git //从github上下载fabric
下载完成后hyperLedger文件夹下会多出一个fabric文件夹
4.2. Fabric Docker镜像的下载
进入如下文件夹
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输入
source download-dockerimages.sh -c x86_64-1.0.0 -f x86_64-1.0.0
文件较大，等待
下载完成后输入 docker images 可查看下载好的镜像
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4.3. 启动Fabric网络并完成ChainCode的测试
依旧在e2e_cli文件夹下运行终端输入
./network_setup.sh up
正常运行完出现如下界面，其中运行内容参考hyperledger技术与应用一书
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4.4. 测试Fabric网络
在官方例子中，channel名字是mychannel，链码的名字是mycc。我们首先进入CLI，我们重新打开一个命令行窗口，输入：
docker exec -it cli bash
查询a账户的余额：
peer chaincode query -C mychannel -n mycc -c '{"Args":["query","a"]}'
可看出现在余额为90
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把a账户的余额再转20元给b账户
peer chaincode invoke -o orderer.example.com:7050 --tls true --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem -C mychannel -n mycc -c '{"Args":["invoke","a","b","20"]}'
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再次查询a的余额
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4.5. 关闭fabric网络
依旧在e2e_cli文件夹下运行终端输入
./network_setup.sh down
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5. 生成公私钥和证书
进入fabric文件夹下运行
make cryptogen
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进入examples/e2e_cli/文件夹下运行
../../build/bin/cryptogen generate --config=./crypto-config.yaml
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<!--[if !supportLists]-->6. <!--[endif]-->生成创世区块和Channel配置区块
进入fabric文件夹下运行
make configtxgen
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6.1. 生成创世区块
进入examples/e2e_cli/文件夹下运行
../../build/bin/configtxgen -profile TwoOrgsOrdererGenesis -outputBlock ./channel-artifacts/genesis.block
6.2. 生成Channel配置区块
../../build/bin/configtxgen -profile TwoOrgsChannel -outputCreateChannelTx ./channel-artifacts/channel.tx -channelID mychannel
../../build/bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org1MSPanchors.tx -channelID mychannel -asOrg Org1MSP
../../build/bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org2MSPanchors.tx -channelID mychannel -asOrg Org2MSP
运行完后可在channel-artifacts文件夹中看见如下文件
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<!--[if !supportLists]-->7. <!--[endif]-->配置Fabric环境的docker-compose文件
Orderer的配置是在base/docker-compose-base.yaml里面
Peer的配置是在base/docker-compose-base.yaml和peer-base.yaml里面
CLI在整个Fabric网络中扮演客户端的角色，我们在开发测试的时候可以用CLI来代替SDK，执行各种SDK能执行的操作。CLI会和Peer相连，把指令发送给对应的Peer执行。CLI的配置在docker-compose-cli.yaml中
我们这里全部采用默认配置，只把CLI中的command: /bin/bash -c './scripts/script.sh ${CHANNEL_NAME}; sleep $TIMEOUT' 这行注释掉，后面我们手动执行。
我们要安装的ChainCode都是在fabric/examples/chaincode/go目录下，以后我们要开发自己的ChainCode，只需要把我们的代码复制到该目录即可
<!--[if !supportLists]-->8. <!--[endif]-->初始化Fabric环境
8.1. 启动Fabric环境的容器
docker-compose -f docker-compose-cli.yaml up -d
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8.2. 创建Channel
现在我们要进入cli容器内部，在里面创建Channel。先用以下命令进入CLI内部Bash：
docker exec -it cli bash
创建Channel的命令是peer channel create，我们前面创建Channel的配置区块时，指定了Channel的名字是mychannel，那么这里我们必须创建同样名字的Channel
ORDERER_CA=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem
peer channel create -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/channel.tx --tls true --cafile $ORDERER_CA
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8.3. 各个Peer加入Channel
CLI默认连接的是peer0.org1 那么将其加入运行如下
peer channel join -b mychannel.block
其他的就需要修改CLI的环境变量，使其指向另外的Peer。比如我们要把peer1.org1加入mychannel
CORE_PEER_LOCALMSPID="Org1MSP"
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp
CORE_PEER_ADDRESS=peer1.org1.example.com:7051
peer channel join -b mychannel.block
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同样的方法，将peer0.org2加入mychannel：
CORE_PEER_LOCALMSPID="Org2MSP"
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp
CORE_PEER_ADDRESS=peer0.org2.example.com:7051
peer channel join -b mychannel.block
最后把peer1.org2加入mychannel：
CORE_PEER_LOCALMSPID="Org2MSP"
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer1.org2.example.com/tls/ca.crt
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp
CORE_PEER_ADDRESS=peer1.org2.example.com:7051
peer channel join -b mychannel.block
<!--[if !supportLists]-->9. <!--[endif]-->链上代码的安装与运行
以上，整个Fabric网络和Channel都准备完毕，接下来我们来安装和运行ChainCode
链上代码的安装需要在各个相关的Peer上进行，对于我们现在这种Fabric网络，如果4个Peer都想对Example02进行操作，那么就需要安装4次。
我们先切换到peer0.org1这个节点
CORE_PEER_LOCALMSPID="Org1MSP"
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp
CORE_PEER_ADDRESS=peer0.org1.example.com:7051
使用peer chaincode install命令可以安装指定的ChainCode并对其命名：
peer chaincode install -n mycc -v 1.0 -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02
9.1 Instantiate ChainCode实例化链上代码
实例化链上代码主要是在Peer所在的机器上对前面安装好的链上代码进行包装，生成对应Channel的Docker镜像和Docker容器。并且在实例化时我们可以指定背书策略。我们运行以下命令完成实例化：
peer chaincode instantiate -o orderer.example.com:7050 --tls true --cafile $ORDERER_CA -C mychannel -n mycc -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P "OR ('Org1MSP.member','Org2MSP.member')"
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9.2 在一个Peer上查询并发起交易
查询a账户
peer chaincode query -C mychannel -n mycc -c '{"Args":["query","a"]}'
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a账户的10元转给b
peer chaincode invoke -o orderer.example.com:7050 --tls true --cafile $ORDERER_CA -C mychannel -n mycc -c '{"Args":["invoke","a","b","10"]}'
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同样我们可以在org2节点下操作，首先给peer0.org2安装链上代码：
CORE_PEER_LOCALMSPID="Org2MSP"
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp
CORE_PEER_ADDRESS=peer0.org2.example.com:7051
peer chaincode install -n mycc -v 1.0 -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02
其他操作同上
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Hyperledger Fabric 是用 Go 语言编写的，因此需要先安装 Go 语言环境。 **步骤：** 1. **下载 Go 安装包：** ```bash wget https://studygolang.com/dl/golang/go1.13.4.linux-amd64.tar.gz ``` 2. **解压...
本文档旨在详细介绍如何在本地搭建一个用于测试的Hyperledger Fabric环境，并集成fabric-java-sdk进行功能测试。我们将按照以下步骤进行： 1. **安装Java Development Kit (JDK)** 2. **安装Apache Maven** 3. **...
7. **安装和实例化链码**：链码是Fabric中的智能合约，需要在每个参与的Peer节点上安装，并在一个或多个通道上实例化。 8. **进行交易**：通过调用`peer chaincode invoke`或`peer chaincode query`命令，进行链码的...