这篇文章将为大家详细讲解有关Hyperledger Fabric中First Network的示例分析，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
生成 fabric 证书和配置等文件
./byfn.sh generate
日志分析并手动构建细节
1. 以获取生成将用于crypto-config.yaml文件中定义的网络配置的证书，对应手工配置：
../bin/cryptogen generate --config=./crypto-config.yaml
对应输出日志：
org1.example.com org2.example.com
证书和密钥（即MSP材料）将输出到 first-network 目录中的 crypto-config 文件夹。
2. configtxgen 工具在哪里查找配置文件 configtx.yaml 并调用 configtxgen 工具来创建 orderer 创世区块，对应手工配置：
export FABRIC_CFG_PATH=$PWD && ../bin/configtxgen -profile TwoOrgsOrdererGenesis -outputBlock ./channel-artifacts/genesis.block
对应输出类似日志：
2018-08-23 10:36:13.825 CST [common/tools/configtxgen] main -> WARN 001 Omitting the channel ID for configtxgen is deprecated. Explicitly passing the channel ID will be required in the future, defaulting to 'testchainid'. 2018-08-23 10:36:13.825 CST [common/tools/configtxgen] main -> INFO 002 Loading configuration 2018-08-23 10:36:13.831 CST [common/tools/configtxgen/encoder] NewChannelGroup -> WARN 003 Default policy emission is deprecated, please include policy specificiations for the channel group in configtx.yaml 2018-08-23 10:36:13.832 CST [common/tools/configtxgen/encoder] NewOrdererGroup -> WARN 004 Default policy emission is deprecated, please include policy specificiations for the orderer group in configtx.yaml 2018-08-23 10:36:13.832 CST [common/tools/configtxgen/encoder] NewOrdererOrgGroup -> WARN 005 Default policy emission is deprecated, please include policy specificiations for the orderer org group OrdererOrg in configtx.yaml 2018-08-23 10:36:13.832 CST [msp] getMspConfig -> INFO 006 Loading NodeOUs 2018-08-23 10:36:13.832 CST [common/tools/configtxgen/encoder] NewOrdererOrgGroup -> WARN 007 Default policy emission is deprecated, please include policy specificiations for the orderer org group Org1MSP in configtx.yaml 2018-08-23 10:36:13.832 CST [msp] getMspConfig -> INFO 008 Loading NodeOUs 2018-08-23 10:36:13.832 CST [common/tools/configtxgen/encoder] NewOrdererOrgGroup -> WARN 009 Default policy emission is deprecated, please include policy specificiations for the orderer org group Org2MSP in configtx.yaml 2018-08-23 10:36:13.832 CST [common/tools/configtxgen] doOutputBlock -> INFO 00a Generating genesis block 2018-08-23 10:36:13.833 CST [common/tools/configtxgen] doOutputBlock -> INFO 00b Writing genesis block
创世区块 genesis.block 将输出到 first-network 目录中的 channel-artifacts 文件夹。
3. 创建通道配置文件，对应手工配置：
export CHANNEL_NAME=mychannel && ../bin/configtxgen -profile TwoOrgsChannel -outputCreateChannelTx ./channel-artifacts/channel.tx -channelID $CHANNEL_NAME
对应输出类似日志：
2018-08-23 10:55:33.393 CST [common/tools/configtxgen] main -> INFO 001 Loading configuration 2018-08-23 10:55:33.399 CST [common/tools/configtxgen] doOutputChannelCreateTx -> INFO 002 Generating new channel configtx 2018-08-23 10:55:33.399 CST [common/tools/configtxgen/encoder] NewApplicationGroup -> WARN 003 Default policy emission is deprecated, please include policy specificiations for the application group in configtx.yaml 2018-08-23 10:55:33.399 CST [msp] getMspConfig -> INFO 004 Loading NodeOUs 2018-08-23 10:55:33.399 CST [common/tools/configtxgen/encoder] NewApplicationOrgGroup -> WARN 005 Default policy emission is deprecated, please include policy specificiations for the application org group Org1MSP in configtx.yaml 2018-08-23 10:55:33.400 CST [msp] getMspConfig -> INFO 006 Loading NodeOUs 2018-08-23 10:55:33.400 CST [common/tools/configtxgen/encoder] NewApplicationOrgGroup -> WARN 007 Default policy emission is deprecated, please include policy specificiations for the application org group Org2MSP in configtx.yaml 2018-08-23 10:55:33.401 CST [common/tools/configtxgen] doOutputChannelCreateTx -> INFO 008 Writing new channel tx
通道配置文件 channel.tx 将输出到 first-network 目录中的 channel-artifacts 文件夹。
4. 构建的通道上为Org1组织锚节点配置文件，对应手工配置：
../bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org1MSPanchors.tx -channelID $CHANNEL_NAME -asOrg Org1MSP
对应输出类似日志：
2018-08-23 11:07:49.817 CST [common/tools/configtxgen] main -> INFO 001 Loading configuration 2018-08-23 11:07:49.823 CST [common/tools/configtxgen] doOutputAnchorPeersUpdate -> INFO 002 Generating anchor peer update 2018-08-23 11:07:49.823 CST [common/tools/configtxgen] doOutputAnchorPeersUpdate -> INFO 003 Writing anchor peer update
通道上为Org1定义锚对等节点配置文件 Org1MSPanchors.tx 将输出到 first-network 目录中的 channel-artifacts 文件夹。
5. 构建的通道上为Org2组织锚节点配置文件，对应手工配置：
../bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org2MSPanchors.tx -channelID $CHANNEL_NAME -asOrg Org2MSP
对应输出类似日志：
2018-08-23 11:10:02.486 CST [common/tools/configtxgen] main -> INFO 001 Loading configuration 2018-08-23 11:10:02.493 CST [common/tools/configtxgen] doOutputAnchorPeersUpdate -> INFO 002 Generating anchor peer update 2018-08-23 11:10:02.493 CST [common/tools/configtxgen] doOutputAnchorPeersUpdate -> INFO 003 Writing anchor peer upda
通道上为Org2定义锚对等节点配置文件 Org2MSPanchors.tx 将输出到 first-network 目录中的 channel-artifacts 文件夹。
网络启动
./byfn.sh up
日志分析可以分为两部分并手动构建细节
第一日志部分
Creating network "net_byfn" with the default driver Creating volume "net_orderer.example.com" with default driver Creating volume "net_peer0.org1.example.com" with default driver Creating volume "net_peer1.org1.example.com" with default driver Creating volume "net_peer0.org2.example.com" with default driver Creating volume "net_peer1.org2.example.com" with default driver Creating peer0.org2.example.com ... done Creating orderer.example.com ... done Creating peer1.org1.example.com ... done Creating peer1.org2.example.com ... done Creating peer0.org1.example.com ... done Creating cli ... done
这部分其实是利用 docker-compose 启动容器编排，具体命令为：
docker-compose -f docker-compose-cli.yaml up -d
第二日志部分
____ _____ _ ____ _____
/ ___| |_ _| / \ | _ \ |_ _|
\___ \ | | / _ \ | |_) | | |
___) | | | / ___ \ | _ < | |
|____/ |_| /_/ \_\ |_| \_\ |_|
Build your first network (BYFN) end-to-end test
Channel name : mychannel
Creating channel...
+ peer channel create -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/channel.tx --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
+ res=0
+ set +x
2018-08-23 04:18:50.971 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 04:18:50.985 UTC [cli/common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
2018-08-23 04:18:50.987 UTC [channelCmd] InitCmdFactory -> INFO 003 Endorser and orderer connections initialized
2018-08-23 04:18:51.193 UTC [cli/common] readBlock -> INFO 004 Received block: 0
===================== Channel 'mychannel' created =====================
Having all peers join the channel...
+ peer channel join -b mychannel.block
+ res=0
+ set +x
2018-08-23 04:18:51.282 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 04:18:51.386 UTC [channelCmd] executeJoin -> INFO 002 Successfully submitted proposal to join channel
===================== peer0.org1 joined channel 'mychannel' =====================
+ peer channel join -b mychannel.block
+ res=0
+ set +x
2018-08-23 04:18:54.468 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 04:18:54.577 UTC [channelCmd] executeJoin -> INFO 002 Successfully submitted proposal to join channel
===================== peer1.org1 joined channel 'mychannel' =====================
+ peer channel join -b mychannel.block
+ res=0
+ set +x
2018-08-23 04:18:57.680 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 04:18:57.790 UTC [channelCmd] executeJoin -> INFO 002 Successfully submitted proposal to join channel
===================== peer0.org2 joined channel 'mychannel' =====================
+ peer channel join -b mychannel.block
+ res=0
+ set +x
2018-08-23 04:19:00.881 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 04:19:00.991 UTC [channelCmd] executeJoin -> INFO 002 Successfully submitted proposal to join channel
===================== peer1.org2 joined channel 'mychannel' =====================
Updating anchor peers for org1...
+ peer channel update -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/Org1MSPanchors.tx --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
+ res=0
+ set +x
2018-08-23 04:19:04.082 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 04:19:04.089 UTC [channelCmd] update -> INFO 002 Successfully submitted channel update
===================== Anchor peers updated for org 'Org1MSP' on channel 'mychannel' =====================
Updating anchor peers for org2...
+ peer channel update -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/Org2MSPanchors.tx --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
+ res=0
+ set +x
2018-08-23 04:19:07.175 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 04:19:07.183 UTC [channelCmd] update -> INFO 002 Successfully submitted channel update
===================== Anchor peers updated for org 'Org2MSP' on channel 'mychannel' =====================
Installing chaincode on peer0.org1...
+ peer chaincode install -n mycc -v 1.0 -l golang -p github.com/chaincode/chaincode_example02/go/
+ res=0
+ set +x
2018-08-23 04:19:10.273 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 001 Using default escc
2018-08-23 04:19:10.273 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 002 Using default vscc
2018-08-23 04:19:10.401 UTC [chaincodeCmd] install -> INFO 003 Installed remotely response:<status:200 payload:"OK" >
===================== Chaincode is installed on peer0.org1 =====================
Install chaincode on peer0.org2...
+ peer chaincode install -n mycc -v 1.0 -l golang -p github.com/chaincode/chaincode_example02/go/
+ res=0
+ set +x
2018-08-23 04:19:10.461 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 001 Using default escc
2018-08-23 04:19:10.461 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 002 Using default vscc
2018-08-23 04:19:10.573 UTC [chaincodeCmd] install -> INFO 003 Installed remotely response:<status:200 payload:"OK" >
===================== Chaincode is installed on peer0.org2 =====================
Instantiating chaincode on peer0.org2...
+ peer chaincode instantiate -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 -l golang -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P 'AND ('\''Org1MSP.peer'\'','\''Org2MSP.peer'\'')'
+ res=0
+ set +x
2018-08-23 04:19:10.634 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 001 Using default escc
2018-08-23 04:19:10.634 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 002 Using default vscc
===================== Chaincode is instantiated on peer0.org2 on channel 'mychannel' =====================
Querying chaincode on peer0.org1...
===================== Querying on peer0.org1 on channel 'mychannel'... =====================
Attempting to Query peer0.org1 ...3 secs
+ peer chaincode query -C mychannel -n mycc -c '{"Args":["query","a"]}'
+ res=0
+ set +x
100
===================== Query successful on peer0.org1 on channel 'mychannel' =====================
Sending invoke transaction on peer0.org1 peer0.org2...
+ 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 --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:7051 --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"]}'
+ res=0
+ set +x
2018-08-23 04:19:31.656 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 001 Chaincode invoke successful. result: status:200
===================== Invoke transaction successful on peer0.org1 peer0.org2 on channel 'mychannel' =====================
Installing chaincode on peer1.org2...
+ peer chaincode install -n mycc -v 1.0 -l golang -p github.com/chaincode/chaincode_example02/go/
+ res=0
+ set +x
2018-08-23 04:19:31.708 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 001 Using default escc
2018-08-23 04:19:31.708 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 002 Using default vscc
2018-08-23 04:19:31.815 UTC [chaincodeCmd] install -> INFO 003 Installed remotely response:<status:200 payload:"OK" >
===================== Chaincode is installed on peer1.org2 =====================
Querying chaincode on peer1.org2...
===================== Querying on peer1.org2 on channel 'mychannel'... =====================
+ peer chaincode query -C mychannel -n mycc -c '{"Args":["query","a"]}'
Attempting to Query peer1.org2 ...3 secs
+ res=0
+ set +x
90
===================== Query successful on peer1.org2 on channel 'mychannel' =====================
========= All GOOD, BYFN execution completed ===========
_____ _ _ ____
| ____| | \ | | | _ \
| _| | \| | | | | |
| |___ | |\ | | |_| |
|_____| |_| \_| |____/这部分其实是利用 docker exec 命令 进入 cli 容器中执行 scripts/script.sh 脚本，其参数为 mychannel 3 golang 10 false，具体命令为：
docker exec cli scripts/script.sh mychannel 3 golang 10 false
第二部分日志具体分析
首先进入 cli 容器：
docker exec -it cli bash
接下来在容器里操作，配置环境变量：
export CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp export CORE_PEER_ADDRESS=peer0.org1.example.com:7051 export CORE_PEER_LOCALMSPID="Org1MSP" export 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
创建 mychannel 通道(相当于通过创世区块创建区块链，每个通道相当于每条独立的区块链)：
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
输出日志：
2018-08-23 06:56:14.257 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2018-08-23 06:56:14.273 UTC [cli/common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
2018-08-23 06:56:14.274 UTC [channelCmd] InitCmdFactory -> INFO 003 Endorser and orderer connections initialized
2018-08-23 06:56:14.480 UTC [cli/common] readBlock -> INFO 004 Received block: 0节点加入 mychannel 通道(相当于节点加入区块链网络)： 加入通道需要用到环境变量的值，默认为 peer0.org1 节点加入通道。
peer channel join -b mychannel.block
输出日志：
2018-08-23 07:10:09.620 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized 2018-08-23 07:10:09.729 UTC [channelCmd] executeJoin -> INFO 002 Successfully submitted proposal to join channel
要其他节点也加入 mychannel 通道，需要修改环境变量的值，也很简单，举个例子,如果 peer1.org2 节点加入通道，只要把所有环境变量值出现 org1 替换成 org2 ，并把 CORE_PEER_ADDRESS值中的 peer0替换成 peer1 ，如下：
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 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
修改后继续执行：peer channel join -b mychannel.block，同理完成 peer0.org2，peer1.org1，peer1.org2 加入 mychannel 通道。
更新通道的锚节点，实质上是在通道的创世块之上添加了额外的配置信息(所谓锚节点就是某联盟在通道中公开链接的一个或多个节点) 更新通道中 Org1 组织的锚节点为 peer0.org1.example.com： 首先确保环境变量是 peer0.org1 的信息：
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 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
然后更新
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
更新通道中 Org2 组织的锚节点为 peer0.org2.example.com： 首先确保环境变量是 peer0.org2 的信息：
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 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
然后更新
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
安装和实例化Chaincode 安装 golang版 Chaincode ，安装到的节点为环境变量的配置节点:
peer chaincode install -n mycc -v 1.0 -p github.com/chaincode/chaincode_example02/go/
日志输出：
2018-08-23 11:25:20.439 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 001 Using default escc 2018-08-23 11:25:20.439 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 002 Using default vscc 2018-08-23 11:25:20.831 UTC [chaincodeCmd] install -> INFO 003 Installed remotely response:<status:200 payload:"OK" >
接下来，在通道上实例化链码。这将初始化通道上的链代码，设置链代码的认可策略，并为目标节点启动链代码容器：
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')"日志输出：
2018-08-23 11:31:33.050 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 001 Using default escc 2018-08-23 11:31:33.050 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 002 Using default vscc
查询以确保链代码已正确实例化并填充状态数据库：
peer chaincode query -C $CHANNEL_NAME -n mycc -c '{"Args":["query","a"]}'日志输出：
100
调用，a取10给b
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:7051 --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"]}'输出
INFO 001 Chaincode invoke successful. result: status:200
查询结果得到： a：90，b：210，成功结束 !!!
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