Fabric 环境安装

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/[e-mail]/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/[e-mail]/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/[e-mail]/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/[e-mail]/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/[e-mail]/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