fabric first-network学习笔记

参考文档：https://hyperledger-fabric.readthedocs.io/en/release-1.4/build_network.html

网络拓扑

四个 Peer 节点分属于同一个管理域（example.com）下的两个组织Org1 和Org2，这两个组织都加入同一个应用通道（business-channel）中，每个组织中的第一个节点（peer0节点）作为锚节点和其他组织进行通信，所有节点通过域名都可以相互访问。

生成初始区块

../bin/cryptogen generate --config=./crypto-config.yaml

fabric项目提供了cryptogen工具为网络实体生成证书和私钥，这一过程依赖于crypto-config.yaml配置文件。
运行该cryptogen工具后，生成的证书和密钥将保存到first-network/crypto-config文件夹中。

export FABRIC_CFG_PATH=$PWD
../bin/configtxgen -profile TwoOrgsOrdererGenesis -channelID byfn-sys-channel -outputBlock ./channel-artifacts/genesis.block

创世块及之后的操作生成的文件会保存到first-network/channel-artifacts文件夹中。上面命令中的channelID是系统通道的名称。

生成通道的配置信息

# mychannel可以是任意值
export CHANNEL_NAME=mychannel  

../bin/configtxgen -profile TwoOrgsChannel -outputCreateChannelTx ./channel-artifacts/channel.tx -channelID $CHANNEL_NAME

生成锚节点配置更新文件

../bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org1MSPanchors.tx -channelID $CHANNEL_NAME -asOrg Org1MSP

../bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org2MSPanchors.tx -channelID $CHANNEL_NAME -asOrg Org2MSP

这两行命令为为org1和org2定义锚点.

启动网络

docker-compose -f docker-compose-cli.yaml up -d

创建和加入通道

进入docker容器

docker exec -it cli bash

创建通道

export CHANNEL_NAME=mychannel
peer channel create -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/channel.tx --tls --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem

加入通道

 peer channel join -b mychannel.block

更新锚节点

peer channel update -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/Org1MSPanchors.tx --tls --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem

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:9051 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 peer channel update -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/Org2MSPanchors.tx --tls --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem

安装链码

首先，将示例Go，Node.js或Java chaincode安装到Org1中的peer0节点上。
Golang

peer chaincode install -n mycc -v 1.0 -p github.com/chaincode/chaincode_example02/go/

Node.js

peer chaincode install -n mycc -v 1.0 -l node -p /opt/gopath/src/github.com/chaiJncode/chaincode_example02/node/

Java

peer chaincode install -n mycc -v 1.0 -l java -p /opt/gopath/src/github.com/chaincode/chaincode_example02/java/

修改以下四个环境变量以对Org2中的peer0发出安装命令：

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:9051
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

将示例Go，Node.js或Java链码安装到Org2中的peer0上。
Golang

peer chaincode install -n mycc -v 1.0 -p github.com/chaincode/chaincode_example02/go/

Node.js

peer chaincode install -n mycc -v 1.0 -l node -p /opt/gopath/src/github.com/chaincode/chaincode_example02/node/

Java

peer chaincode install -n mycc -v 1.0 -l java -p /opt/gopath/src/github.com/chaincode/chaincode_example02/java/

实例化链码

我们指定需要来自Org1 和 Org2 的两次背书。如果需要一次，把-P "AND ('Org1MSP.peer','Org2MSP.peer')"中AND改成OR即可。
Golang

peer chaincode instantiate -o orderer.example.com:7050 --tls --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 $CHANNEL_NAME -n mycc -v 1.0 -c '{"Args":["init","a", "100", "b","200"]}' -P "AND ('Org1MSP.peer','Org2MSP.peer')"

Node.js

peer chaincode instantiate -o orderer.example.com:7050 --tls --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 $CHANNEL_NAME -n mycc -l node -v 1.0 -c '{"Args":["init","a", "100", "b","200"]}' -P "AND ('Org1MSP.peer','Org2MSP.peer')"

Java

peer chaincode instantiate -o orderer.example.com:7050 --tls --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 $CHANNEL_NAME -n mycc -l java -v 1.0 -c '{"Args":["init","a", "100", "b","200"]}' -P "AND ('Org1MSP.peer','Org2MSP.peer')"

接下来便可以调用链码中的函数进行测试。

Query

peer chaincode query -C $CHANNEL_NAME -n mycc -c '{"Args":["query","a"]}'

Invoke

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 $CHANNEL_NAME -n mycc --peerAddresses peer0.org1.example.com:7051 --tlsRootCertFiles /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt --peerAddresses peer0.org2.example.com:9051 --tlsRootCertFiles /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt -c '{"Args":["invoke","a","b","10"]}'

来源：CSDN

作者：oheyec_

链接：https://blog.csdn.net/oheyec_/article/details/104071275