Fabric启动网络日志和示例代码解析二
script.sh
fabric-samples/first-network/scripts/script.sh
#!/bin/bash echo echo " ____ _____ _ ____ _____ " echo "/ ___| |_ _| / \ | _ \ |_ _|" echo "\___ \ | | / _ \ | |_) | | | " echo " ___) | | | / ___ \ | _ < | | " echo "|____/ |_| /_/ \_\ |_| \_\ |_| " echo echo "Build your first network (BYFN) end-to-end test" echo CHANNEL_NAME="$1" DELAY="$2" : ${CHANNEL_NAME:="mychannel"} : ${TIMEOUT:="60"} COUNTER=1 MAX_RETRY=5 ORDERER_CA=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem echo "Channel name : "$CHANNEL_NAME # verify the result of the end-to-end test verifyResult () { if [ $1 -ne 0 ] ; then echo "!!!!!!!!!!!!!!! "$2" !!!!!!!!!!!!!!!!" echo "========= ERROR !!! FAILED to execute End-2-End Scenario ===========" echo exit 1 fi } setGlobals () { if [ $1 -eq 0 -o $1 -eq 1 ] ; then 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 if [ $1 -eq 0 ]; then CORE_PEER_ADDRESS=peer0.org1.example.com:7051 else CORE_PEER_ADDRESS=peer1.org1.example.com:7051 CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp fi else 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 if [ $1 -eq 2 ]; then CORE_PEER_ADDRESS=peer0.org2.example.com:7051 else CORE_PEER_ADDRESS=peer1.org2.example.com:7051 fi fi env |grep CORE } createChannel() { setGlobals 0 if [ -z "$CORE_PEER_TLS_ENABLED" -o "$CORE_PEER_TLS_ENABLED" = "false" ]; then peer channel create -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/channel.tx >&log.txt else peer channel create -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/channel.tx --tls $CORE_PEER_TLS_ENABLED --cafile $ORDERER_CA >&log.txt fi res=$? cat log.txt verifyResult $res "Channel creation failed" echo "===================== Channel \"$CHANNEL_NAME\" is created successfully ===================== " echo } updateAnchorPeers() { PEER=$1 setGlobals $PEER if [ -z "$CORE_PEER_TLS_ENABLED" -o "$CORE_PEER_TLS_ENABLED" = "false" ]; then peer channel update -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/${CORE_PEER_LOCALMSPID}anchors.tx >&log.txt else peer channel update -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/${CORE_PEER_LOCALMSPID}anchors.tx --tls $CORE_PEER_TLS_ENABLED --cafile $ORDERER_CA >&log.txt fi res=$? cat log.txt verifyResult $res "Anchor peer update failed" echo "===================== Anchor peers for org \"$CORE_PEER_LOCALMSPID\" on \"$CHANNEL_NAME\" is updated successfully ===================== " sleep $DELAY echo } ## Sometimes Join takes time hence RETRY atleast for 5 times joinWithRetry () { peer channel join -b $CHANNEL_NAME.block >&log.txt res=$? cat log.txt if [ $res -ne 0 -a $COUNTER -lt $MAX_RETRY ]; then COUNTER=` expr $COUNTER + 1` echo "PEER$1 failed to join the channel, Retry after 2 seconds" sleep $DELAY joinWithRetry $1 else COUNTER=1 fi verifyResult $res "After $MAX_RETRY attempts, PEER$ch has failed to Join the Channel" } joinChannel () { for ch in 0 1 2 3; do setGlobals $ch joinWithRetry $ch echo "===================== PEER$ch joined on the channel \"$CHANNEL_NAME\" ===================== " sleep $DELAY echo done } installChaincode () { PEER=$1 setGlobals $PEER # 1. 通过peer chaincode install把链码安装到区块链上，本质上和安装应用程序是没有区别的，只不过平时是把程序安装到操作系统上，而这里是把链码安装到区块链上，链码安装没有做什么特别的事情，仅仅是对链码进行打包，然后上传到区块链上的某一个节点上，真正意义上的安装是下面的初始化操作 instantiaChaincode（）
peer chaincode install -n mycc -v 1.0 -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02 >&log.txt res=$? cat log.txt verifyResult $res "Chaincode installation on remote peer PEER$PEER has Failed" echo "===================== Chaincode is installed on remote peer PEER$PEER ===================== " echo } instantiateChaincode () { PEER=$1 setGlobals $PEER # while 'peer chaincode' command can get the orderer endpoint from the peer (if join was successful), # lets supply it directly as we know it using the "-o" option
# peer chaincode instantiate 有两个参数，a:100,b:200,这两个参数就是Init（）函数接收的A和B两个参数，A=a,B=b,值是100和200，Init函数执行完之后，相当于在区块链上初始化了2个账户，给他们分别打了100块钱和200块钱，前面文章启动网络日志，里面有一个query日志，查询结果是Query Result：100，之所以日志显示得结果是100而不是200，是因为下面chaincodeQuery()查询得a账户，而a账户初始化的时候是100块钱，查询返回的结果是100是正常的
if [ -z "$CORE_PEER_TLS_ENABLED" -o "$CORE_PEER_TLS_ENABLED" = "false" ]; then peer chaincode instantiate -o orderer.example.com:7050 -C $CHANNEL_NAME -n mycc -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P "OR ('Org1MSP.member','Org2MSP.member')" >&log.txt else peer chaincode instantiate -o orderer.example.com:7050 --tls $CORE_PEER_TLS_ENABLED --cafile $ORDERER_CA -C $CHANNEL_NAME -n mycc -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P "OR ('Org1MSP.member','Org2MSP.member')" >&log.txt fi res=$? cat log.txt verifyResult $res "Chaincode instantiation on PEER$PEER on channel '$CHANNEL_NAME' failed" echo "===================== Chaincode Instantiation on PEER$PEER on channel '$CHANNEL_NAME' is successful ===================== " echo } chaincodeQuery () { PEER=$1 echo "===================== Querying on PEER$PEER on channel '$CHANNEL_NAME'... ===================== " setGlobals $PEER local rc=1 local starttime=$(date +%s) # continue to poll # we either get a successful response, or reach TIMEOUT while test "$(($(date +%s)-starttime))" -lt "$TIMEOUT" -a $rc -ne 0 do sleep $DELAY echo "Attempting to Query PEER$PEER ...$(($(date +%s)-starttime)) secs" # 查询的 a账户
peer chaincode query -C $CHANNEL_NAME -n mycc -c '{"Args":["query","a"]}' >&log.txt test $? -eq 0 && VALUE=$(cat log.txt | awk '/Query Result/ {print $NF}') test "$VALUE" = "$2" && let rc=0 done echo cat log.txt if test $rc -eq 0 ; then echo "===================== Query on PEER$PEER on channel '$CHANNEL_NAME' is successful ===================== " else echo "!!!!!!!!!!!!!!! Query result on PEER$PEER is INVALID !!!!!!!!!!!!!!!!" echo "================== ERROR !!! FAILED to execute End-2-End Scenario ==================" echo exit 1 fi } chaincodeInvoke () { PEER=$1 setGlobals $PEER # while 'peer chaincode' command can get the orderer endpoint from the peer (if join was successful), # lets supply it directly as we know it using the "-o" option if [ -z "$CORE_PEER_TLS_ENABLED" -o "$CORE_PEER_TLS_ENABLED" = "false" ]; then # invoke，参数意思事a账户往b账户转10块钱
peer chaincode invoke -o orderer.example.com:7050 -C $CHANNEL_NAME -n mycc -c '{"Args":["invoke","a","b","10"]}' >&log.txt else peer chaincode invoke -o orderer.example.com:7050 --tls $CORE_PEER_TLS_ENABLED --cafile $ORDERER_CA -C $CHANNEL_NAME -n mycc -c '{"Args":["invoke","a","b","10"]}' >&log.txt fi res=$? cat log.txt verifyResult $res "Invoke execution on PEER$PEER failed " echo "===================== Invoke transaction on PEER$PEER on channel '$CHANNEL_NAME' is successful ===================== " echo } ## Create channel echo "Creating channel..." createChannel ## Join all the peers to the channel echo "Having all peers join the channel..." joinChannel ## Set the anchor peers for each org in the channel echo "Updating anchor peers for org1..." updateAnchorPeers 0 echo "Updating anchor peers for org2..." updateAnchorPeers 2 ## Install chaincode on Peer0/Org1 and Peer2/Org2 echo "Installing chaincode on org1/peer0..." installChaincode 0 echo "Install chaincode on org2/peer2..." installChaincode 2 #Instantiate chaincode on Peer2/Org2 echo "Instantiating chaincode on org2/peer2..." instantiateChaincode 2 #Query on chaincode on Peer0/Org1 echo "Querying chaincode on org1/peer0..." chaincodeQuery 0 100 #Invoke on chaincode on Peer0/Org1 echo "Sending invoke transaction on org1/peer0..." chaincodeInvoke 0 ## Install chaincode on Peer3/Org2 echo "Installing chaincode on org2/peer3..." installChaincode 3 #Query on chaincode on Peer3/Org2, check if the result is 90 echo "Querying chaincode on org2/peer3..." chaincodeQuery 3 90 echo echo "========= All GOOD, BYFN execution completed =========== " echo echo echo " _____ _ _ ____ " echo "| ____| | \ | | | _ \ " echo "| _| | \| | | | | | " echo "| |___ | |\ | | |_| | " echo "|_____| |_| \_| |____/ " echo exit 0
