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This article mainly introduces the fabric example e2e_cli in the network_setup.sh process is how, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Network_setup.sh process Analysis network_setup.sh flow Chart in fabric sample e2e_cli

Call generateArtifacts.sh

Docker-compose up starts cli

Cli container executes script.sh script

Network_setup.sh function analysis validateArgs analysis function validateArgs () {# exit if [- z "${UP_DOWN}"] if parameter is empty; then echo "Option up / down / restart not mentioned" printHelp exit 1 fi if [- z "${CH_NAME}"] Then # if the second parameter is empty, create the channel echo "setting to default channel' mychannel'" CH_NAME=mychannel fi} function networkUp analysis with the default name of 'mychannel'

Call generateArtifacts.sh

Call docker-compose to start the container

Function networkUp () {# determines whether crypto-config exists, if it does, then execute the generateArtifacts.sh script if [- f ". / crypto-config"]; then echo "crypto-config directory already exists." Else # Generate all the artifacts that includes org certs, orderer genesis block, # channel configuration transaction source generateArtifacts.sh $CH_NAME fi # whether the fourth parameter is couchdb, if the startup parameter is accompanied by the docker-compose template file corresponding to couchdb # actual command: CHANNEL_NAME=mychannel TIMEOUT=10000 docker-compose- f docker-compose-cli.yaml-f COMPOSE_FILE_COUCH=docker-compose-couch.yaml up-d 2 > & 1 # if it is not couchdb The actual command of yaml # without couchdb is: CHANNEL_NAME=mychannel TIMEOUT=10000 docker-compose- f docker-compose-cli.yaml up-d 2 > & 1 if ["${IF_COUCHDB}" = = "couchdb"] Then CHANNEL_NAME=$CH_NAME TIMEOUT=$CLI_TIMEOUT docker-compose-f $COMPOSE_FILE-f $COMPOSE_FILE_COUCH up-d 2 > & 1 else CHANNEL_NAME=$CH_NAME TIMEOUT=$CLI_TIMEOUT docker-compose-f $COMPOSE_FILE up-d 2 > & 1 fi # determines the return value of execution. If it is not 0, the output error and exit if [$?-ne 0]; then echo "ERROR! Unable to pull the images "exit 1 fi # View the real-time log of container cli docker logs-f cli} generateArtifacts.sh function analysis

GenerateCerts replacePrivateKey generateChannelArtifacts

Function generateCerts Analysis # # Generates Org certs using cryptogen toolfunction generateCerts () {# ubuntu OS_ARCH for linux-amd64 # OS X OS_ARCH for darwin-amd64 # fabric directory corresponding subdirectory lookup file cryptogen # if the file exists # if it is not stored in the make command generation. But this make CRYPTOGEN=$FABRIC_ROOT/release/$OS_ARCH/bin/cryptogen if [- f "$CRYPTOGEN"] Then echo "Using cryptogen-> $CRYPTOGEN" else echo "Building cryptogen" make-C $FABRIC_ROOT release fi # actual command cryptogen generate-- config=./crypto-config.yaml # TODO to be improved echo echo "# # # "echo" # Generate certificates using cryptogen tool # "echo" # "$CRYPTOGEN generate-- Config=./crypto-config.yaml echo} replacePrivateKey## Using docker-compose template replace private key file names with constantsfunction replacePrivateKey () {# if it is OS X, the system parameter is-it Otherwise, adding ""-I before-I # or-I can avoid misreporting ARCH= `uname-s in OS X | grep Darwin` if ["$ARCH" = = "Darwin"] Then OPTS= "- it" else OPTS= "- I" fi # copy the docker-compose-e2e-template.yaml file And the new file is named docker-compose-e2e.yaml cp docker-compose-e2e-template.yaml docker-compose-e2e.yaml # get the file name at the end of _ sk in the crypto-config/peerOrganizations/org1.example.com/ca/ directory # replace the CA1_PRIVATE_KEY in the above file with the above file name #-I directly modify the text file content # s replace the specified character Using the suffix / g tag replaces all matching CURRENT_DIR=$PWD cd crypto-config/peerOrganizations/org1.example.com/ca/ PRIV_KEY=$ (ls * _ sk) cd $CURRENT_DIR sed $OPTS "s docker-compose-e2e.yaml cd crypto-config/peerOrganizations/org2.example.com/ca/ PRIV CA1 private key on each line ${PRIV_KEY} / g" _ KEY=$ (ls * _ sk) cd $CURRENT_DIR sed $OPTS "CA2 private key generateChannelArtifacts## Generate orderer genesis block ${PRIV_KEY} / g" docker-compose-e2e.yaml} Channel configuration transaction and anchor peer update transactionsfunction generateChannelArtifacts () {# ubuntu OS_ARCH for linux-amd64 # OS X OS_ARCH for darwin-amd64 # fabric directory corresponding subdirectory lookup file cryptogen # if this file exists # if it does not exist execute the make command to generate CONFIGTXGEN=$FABRIC_ROOT/release/$OS_ARCH/bin/configtxgen if [- f "$CONFIGTXGEN"] Then echo "Using configtxgen-> $CONFIGTXGEN" else echo "Building configtxgen" make-C $FABRIC_ROOT release fi # use tool configtxgen to generate Genesis Block # # profile specify configuration item # # outputBlock execution generation file path in configtx.yaml, protobuf serialization format # # you can use the tool to view it in json format Configtxgen-inspectBlock genesis.block echo "#" echo "# Generating Orderer Genesis block #" echo "# # "# Note: For some unknown reason (at least for now) the block file can't be # named orderer.genesis.block or the orderer will fail to launch! $CONFIGTXGEN-profile TwoOrgsOrdererGenesis-outputBlock. / channel-artifacts/genesis.block # # use the tool Configtxgen generates channel.tx # # outputCreateChannelTx specifies the generated file path Protobuf serialization format # # can be viewed in json format with tools Configtxgen-inspectChannelCreateTx channel.tx echo echo "#" echo "# Generating channel configuration transaction 'channel.tx' #" echo "# # "$CONFIGTXGEN-profile TwoOrgsChannel-outputCreateChannelTx. / channel-artifacts/channel.tx-channelID $CHANNEL_NAME # generate Org1MSPanchors.tx echo echo using the tool configtxgen" # # "echo" # Generating anchor peer update for Org1MSP # "echo" # # # # "$CONFIGTXGEN-profile TwoOrgsChannel-outputAnchorPeersUpdate. / channel-artifacts/Org1MSPanchors.tx-channelID $CHANNEL_NAME-asOrg Org1MSP # generate Org2MSPanchors.tx echo echo using tool configtxgen" # # # # "echo" # Generating anchor peer update for Org2MSP # "echo" # # # "$CONFIGTXGEN-profile TwoOrgsChannel-outputAnchorPeersUpdate. / channel-artifacts/Org2MSPanchors.tx-channelID $CHANNEL_NAME-asOrg Org2MSP echo} docker-compose launch Container Startup Command CHANNEL_NAME=mychannel TIMEOUT=10000 docker-compose- f docker-compose-cli.yaml up-d 2 > & 1script.sh Analysis

Create a channel

Join the channel

Set up anchor

Install chaincode

Instantiate chaincode

Query / call chaincode

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