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Hyperledger Fabric 超级账本

 2019-04-23　  Surou　  阅读 　  Fabric-新手教程　  0 评论

Hyperledger Fabric 超级账本

Hyperledger Fabric 称为联盟链，是分布式账本技术（DLT），采用模块化架构来提供高度机密性，伸缩性，灵活性和可扩展性。 它旨在支持不同组件的可插拔实现，并适应整个经济生态系统中存在的复杂性和复杂性。

Hyperledger Fabric 架构

  • 前提安装条件

    • Git
    • Golang
    • Node.js and NPM
    • Docker and Docker Compose (Docker版本17.06.2-ce或更高版本,Docker Compose版本1.14.0或更高版本)

  • 克隆 hyperledger/fabric-samples

  • 切换到fabric-samples文件夹下

    • cd fabric-samples

  • 将指定版本的Hyperledger Fabric平台特定二进制文件和配置文件分别安装到fabric-samples存储库的根目录中bin文件夹和config文件夹,和下载指定版本的Hyperledger Fabric docker镜像

    • ./scripts/bootstrap.sh [version] [ca version] [thirdparty_version] (默认版本为 1.2.0, 1.2.0 和 0.4.10 )

  • 构建第一个网络

    • cd first-network

    • 生成网络工件： ./byfn.sh generate

    • 启动网络: ./byfn.sh up

    • 终止容器，删除加密材料和四个工件，并从Docker Registry中删除链上代码镜像： ./byfn.sh down (这一步一般在重新启动新的联盟链使用)

    • 到此，第一个联盟链搭建成功，因为是自动化脚本构建的，接下来分析细节，手动构建细节：

      • ./byfn.sh generate 执行后的日志如图：

        • 对应日志中的 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

        • 对应日志中的 2，告诉 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

        • 对应日志中的 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

        • 对应日志中的 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

        • 对应日志中的 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

      • ./byfn.sh up 执行后的日志可以分为两部分：

        • 第一部分

          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

          • 接下来，继续细分 docker exec cli scripts/script.sh mychannel 3 golang 10 false 这个命令等同于以下操作：

            • 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

    • 联盟链新增组织 Org3 ：./eyfn.sh up

      • 手动构建脚本细节
      • 切换目录：cd org3-artifacts
      • 为Org3生成加密材料
        ../../bin/cryptogen generate --config=./org3-crypto.yaml
      • 生成Org3的配置材料
        export FABRIC_CFG_PATH=$PWD && ../../bin/configtxgen -printOrg Org3MSP > ../channel-artifacts/org3.json
      • 将 Orderer 的MSP材料复制到 Org3 的crypto-config目录
        cd ../ && cp -r crypto-config/ordererOrganizations org3-artifacts/crypto-config/
      • 进入cli容器
        docker exec -it cli bash
      • 导出环境变量
        export 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  && export CHANNEL_NAME=mychannel
      • 将旧版本通道配置块保存到 config_block.pb 
        peer channel fetch config config_block.pb -o orderer.example.com:7050 -c $CHANNEL_NAME --tls --cafile $ORDERER_CA
      • 使用 configtxlator 工具将通道配置块解码为JSON格式（可读取和修改），并必须删除与更改无关的所有标头，元数据，创建者签名
        configtxlator proto_decode --input config_block.pb --type common.Block | jq .data.data[0].payload.data.config > config.json

        花一点时间在选择的文本编辑器（或浏览器）中打开此文件。值得研究，因为它揭示了底层配置结构和可以进行的其他类型的通道更新

      • 使用 jq 工具将Org3配置定义 org3.json 附加到通道的应用程序组字段，并命名输出 modified_config.json 
        jq -s '.[0] * {"channel_group":{"groups":{"Application":{"groups": {"Org3MSP":.[1]}}}}}' config.json ./channel-artifacts/org3.json > modified_config.json
      • 将 config.json 转回二进制文件 config.pb
        configtxlator proto_encode --input config.json --type common.Config --output config.pb
      • 将 modified_config.json 转二进制文件 modified_config.pb
        configtxlator proto_encode --input modified_config.json --type common.Config --output modified_config.pb
      • 用 configtxlator 用来计算这两个配置二进制文件之间的增量。输出一个名为的新二进制文件 org3_update.pb
        configtxlator compute_update --channel_id $CHANNEL_NAME --original config.pb --updated modified_config.pb --output org3_update.pb
      • 将 org3_update.pb 解码为可编辑的JSON格式 org3_update.json
        configtxlator proto_decode --input org3_update.pb --type common.ConfigUpdate | jq . > org3_update.json
      • 包装信封消息为 org3_update_in_envelope.json
        echo '{"payload":{"header":{"channel_header":{"channel_id":"mychannel", "type":2}},"data":{"config_update":'$(cat org3_update.json)'}}}' | jq . > org3_update_in_envelope.json
      • 将 org3_update_in_envelope.json 转最终二进制文件 org3_update_in_envelope.pb
        configtxlator proto_encode --input org3_update_in_envelope.json --type common.Envelope --output org3_update_in_envelope.pb
      • Org1 签名配置
        peer channel signconfigtx -f org3_update_in_envelope.pb
      • 导出 Org2 环境变量: 
        export CORE_PEER_LOCALMSPID="Org2MSP"
export 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
export CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp
export CORE_PEER_ADDRESS=peer0.org2.example.com:7051
      • Org2管理员签名并提交更新 
        peer channel update -f org3_update_in_envelope.pb -c $CHANNEL_NAME -o orderer.example.com:7050 --tls --cafile $ORDERER_CA
      • 配置领导者选举，利用动态领导者选举:
        CORE_PEER_GOSSIP_USELEADERELECTION=true
CORE_PEER_GOSSIP_ORGLEADER=false
      • 将 Org3 加入通道
        • 打开一个新的终端，从 first-network 启动 Org3 docker compose 
          docker-compose -f docker-compose-org3.yaml up -d
        • 进入 Org3cli 容器
          docker exec -it Org3cli bash
        • 导出环境变量
          export 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 && export CHANNEL_NAME=mychannel
        • 加入通道
          peer channel join -b mychannel.block
        • 升级和调用Chaincode
          • 到从Org3 CLI中
            peer chaincode install -n mycc -v 2.0 -p github.com/chaincode/chaincode_example02/go/
          • 到从CLI中
            安装 
            peer chaincode install -n mycc -v 2.0 -p github.com/chaincode/chaincode_example02/go/

            升级

            peer chaincode upgrade -o orderer.example.com:7050 --tls $CORE_PEER_TLS_ENABLED --cafile $ORDERER_CA -C $CHANNEL_NAME -n mycc -v 2.0 -c '{"Args":["init","a","90","b","210"]}' -P "OR ('Org1MSP.peer','Org2MSP.peer','Org3MSP.peer')"
          • 到从Org3 CLI中，查询即可
            peer chaincode query -C $CHANNEL_NAME -n mycc -c '{"Args":["query","a"]}'
          • 完成

    • 如果使用过该 eyfn.sh 脚本，则需要关闭网络。这可以通过：./eyfn.sh down

      通过 hyperledger fabric-ca 搭建生产环境的联盟链

  • 利用 fabric-samples/fabric-ca 进行搭建

  • cd fabric-ca

  • 首先下载镜像： ./bootstrap.sh

  • 运行：./start.sh

  • 完成搭建

    • 接下来分析细节，仔细分析start.sh脚本文件

        #!/bin/bash

  set -e

  SDIR=$(dirname "$0")
  # 引入环境变量
  source ${SDIR}/scripts/env.sh

  cd ${SDIR}

  # 删除docker容器
  dockerContainers=$(docker ps -a | awk '$2~/hyperledger/ {print $1}')
  if [ "$dockerContainers" != "" ]; then
     log "Deleting existing docker containers ..."
     docker rm -f $dockerContainers > /dev/null
  fi

  # 删除链码docker镜像
  chaincodeImages=`docker images | grep "^dev-peer" | awk '{print $3}'`
  if [ "$chaincodeImages" != "" ]; then
     log "Removing chaincode docker images ..."
     docker rmi -f $chaincodeImages > /dev/null
  fi

  # 准备一个空文件夹
  DDIR=${SDIR}/${DATA}
  if [ -d ${DDIR} ]; then
     log "Cleaning up the data directory from previous run at $DDIR"
     rm -rf ${SDIR}/data
  fi
  mkdir -p ${DDIR}/logs

  # 创建docker-compose.yml文件
  ${SDIR}/makeDocker.sh

  # 根据生成的docker-compose.yml文件启动docker容器编排
  log "Creating docker containers ..."
  docker-compose up -d

  # 等待名为 setup 容器完成
  dowait "the 'setup' container to finish registering identities, creating the genesis block and other artifacts" 90 $SDIR/$SETUP_LOGFILE $SDIR/$SETUP_SUCCESS_FILE

  # 等待名为 run 容器启动，然后打印它的结束日志
  dowait "the docker 'run' container to start" 60 ${SDIR}/${SETUP_LOGFILE} ${SDIR}/${RUN_SUMFILE}
  tail -f ${SDIR}/${RUN_SUMFILE}&
  TAIL_PID=$!

  # 等待名为 run 容器完成，然后结束
  while true; do 
     if [ -f ${SDIR}/${RUN_SUCCESS_FILE} ]; then
        kill -9 $TAIL_PID
        exit 0
     elif [ -f ${SDIR}/${RUN_FAIL_FILE} ]; then
        kill -9 $TAIL_PID
        exit 1
     else
        sleep 1
     fi
  done

      相关资料

转载自：https://gitee.com/jonluo/blockchain/blob/master/hyperledger-fabric/README.md

EOS v1.7.2 安装完后，无法找到 nodeos 等程序

 2019-04-22　  Surou　  阅读 　  EOS-新手问答　  0 评论

又又改目录位置了。。
自己临时手动将新目录添加到环境变量吧
打开环境变量的文件

vi ~/.bashrc

将新的EOS编译安装后的路径添加到文件尾部

#set eosio path
export EOSIO_PATH=/home/surou/opt/eosio/bin
export PATH=$EOSIO_PATH:$PATH

刷新环境变量，使更改生效

source ~/.bashrc

查看版本

surou@eos_test_net:~$ nodeos -v
v1.7.2-dirty

Installing Boost library... 下载不下来

 2019-04-19　  Surou　  阅读 　  EOS-新手问答　  0 评论

由于各种原因和姿势boost下载不下来，手动传一个包，改下脚本地址，从指定的地方下载把。。
此时上传的是：boost_1_67_0.tar.bz2
当前文件上传的地址：http://dl.aceui.cn/uploads/tools/boost_$BOOST_VERSION.tar.bz2
编辑脚本：vi eosio_build_ubuntu.sh

BOOSTVERSION=$( grep "#define BOOST_VERSION" "$HOME/opt/boost/include/boost/version.hpp" 2>/dev/null | tail -1 | tr -s ' ' | cut -d\  -f3 )
if [ "${BOOSTVERSION}" != "${BOOST_VERSION_MAJOR}0${BOOST_VERSION_MINOR}0${BOOST_VERSION_PATCH}" ]; then
        printf "Installing Boost library...\\n"
        curl -LO http://dl.aceui.cn/uploads/tools/boost_$BOOST_VERSION.tar.bz2 \
        && tar -xjf boost_$BOOST_VERSION.tar.bz2 \

build fails - Unable to find the requested Boost libraries.

 2019-04-19　  Surou　  阅读 　  EOS-新手问答　  0 评论 
cd  ~/opt
rm -rf boost/
./eos_source_dir/eosio_build.sh

One workaround is to cd into ~/opt and remove the boost library there.
Re-compile using ./eosio_build.sh and it should work.

参考：
https://github.com/EOSIO/eos/issues/3464

EOS合约内解析json

 2019-04-19　  Surou　  阅读 　  EOS-新手教程　  0 评论

示例代码

//demo.hpp
#pragma once

#include <eosiolib/eosio.hpp>
#include <eosiolib/print.hpp>
#include "json.hpp"
#include <string>

using json = nlohmann::json;
using eosio::contract;
using eosio::multi_index;
using eosio::print;

class[[eosio::contract]] demo : public contract
{
  public:
    using contract::contract;

    [[eosio::action]] void demoaction();
};
//demo.cpp
#include "demo.hpp"
using json = nlohmann::json;

// ACTION
void demo::demoaction()
{
    json demoInfo = R"(
    {
        "demoInfo": {
            "hello": "world"
        }
    }
    )"_json;
    std::string demoInfoString = demoInfo.dump();
    json demoInfoJson = json::parse(demoInfoString);
    print("It worked\n");
}

EOSIO_DISPATCH(demo, (demoaction))

json.hpp从https://github.com/nlohmann/json/releases 下载并将其放在同一目录中demo.hpp。

参考

https://github.com/EOSIO/eosio.cdt/issues/110

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