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Editor to share with you how to deploy HyperLedgr and initialize the network, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

List of prerequisites

The latest version of git

The latest version of curl

Any version of wget

Docker and docker-compose

Docker-version needs

Go environment settings

Node.js environment settings (including npm)

Python

Install sample, binary, and Docker images

Download the source file according to the script and store it in the bin folder. Finally, the script will download the latest Hyperledger Fabric Docker image from Docker Hub to the local Docker registry.

Before testing the correctness of the installation environment begins

Confirm the success of the installation example in Chapter 2

Start the test network

Cd fabric-samples/test-network

Enable. / network.sh-h to view the usage of the test network build script

1.Usage:2. Network.sh [Flags] 3. 4.-'up'-bring up fabric orderer and peer nodes. No channel is created5. -'up createChannel'-bring up fabric network with one channel6. -'createChannel'-create and join a channel after the network is created7. -'deployCC'-deploy the fabcar chaincode on the channel8. -'down'-clear the network with docker-compose down9. -'restart'-restart the network10.11. Flags:12.-ca-create Certificate Authorities to generate the crypto material13. -c-channel name to use (defaults to "mychannel") 14.-s-the database backend to use: goleveldb (default) or couchdb15. -r-CLI times out after certain number of attempts (defaults to 5) 16.-d-delay duration in seconds (defaults to 3) 17.-l-the programming language of the chaincode to deploy: go (default), javascript, or java18. -v-chaincode version. Must be a round number, 1, 2, 3, etc19. I-the tag to be used to launch the network (defaults to "latest") 20.-verbose-verbose mode21. Network.sh-h (print this message) 22.23. Possible Mode and flags24. Network.sh up-ca-c-r-d-s-I-verbose25. Network.sh up createChannel-ca-c-r-d-s-I-verbose26. Network.sh createChannel-c-r-d-verbose27. Network.sh deployCC-l-v-r-d-verbose28.29. Taking all defaults:30. Network.sh up31.32. Examples:33. Network.sh up createChannel-ca-c mychannel-s couchdb-I 2.0.0-beta34. Network.sh createChannel-c channelName35. Network.sh deployCC-l javascript

No human channels will be generated when using this script network.sh up (only two organizations and one sort node will be created)

The docker ps-a command displays several nodes currently created on the computer (3)

Create a channel

Use scripts to create Fabric channels for transactions between Org1 and Org2, different channels have different ledger books;. / neteork.sh createChannel-c channelName

Deploy chain code

. / network.sh deployCC-l javascript

Init will initialize the content of the intelligent contract and call the chain code to write the initialized data to the account book.

Query all the information in the ledger

Environment variable configuration of Org1. Query environment configuration of Org2 needs to be changed.

1.# Environment variables for Org12.3.export CORE_PEER_TLS_ENABLED=true4.# Change Org2MSP5.export CORE_PEER_LOCALMSPID= "Org1MSP" 6.# change org2.example.com & & peer0.org2.example.com7.export CORE_PEER_TLS_ROOTCERT_FILE=$ {PWD} / organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt8.# change org2.example.com & & Admin@org1.example.com9.export CORE_PEER_MSPCONFIGPATH=$ {PWD} / organizations/ PeerOrganizations/org1.example.com/users/Admin@org1.example.com/msp10.export CORE_PEER_ADDRESS=localhost:7051

Peer chaincode query-C mychannel-n fabcar-c'{"Args": ["queryAllCars"]}'

Change of capital on account

Peer chaincode invoke-o localhost:7050-- ordererTLSHostnameOverride orderer.example.com-- tls true-- cafile ${PWD} / organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem-C mychannel-n fabcar-- peerAddresses localhost:7051-- tlsRootCertFiles ${PWD} / organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt-- peerAddresses localhost:9051-- tlsRootCertFiles ${PWD} / organizations/peerOrganizations/ Org2.example.com/peers/peer0.org2.example.com/tls/ca.crt-c'{"function": "changeCarOwner" "Args": ["CAR9", "Dave"]}'

-- peerAddresses localhost:7051 represents the address of Org1

-- tlsRootCertFiles ${PWD} / organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt indicates the private key address of Org1

-- peerAddresses localhost:9051 represents the address of Org2

-- tlsRootCertFiles ${PWD} / organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt indicates the private key address of Org2

"the command is too long. Use the sdk in fabcar to edit the code changes."

Shut down the network

/ network.sh down this command stops and deletes nodes, chain code containers, organization keys, chain code mirrors, channels, and dock volumes in the Docker registry.

Start the network using a certification authority

The Hyperledger structure uses the public key infrastructure (PKI). Before creating peer nodes and sorting nodes, you must create all the encryption materials needed to deploy and operate the network: nodes, network administrators, and users who submit transactions need public certificates and private keys to authenticate.

By default, the Crptogen tool is used to create certificates and keys, as follows

/ Usr/fabric-samples/test-network/../bin/cryptogen#### Create Org1 Identities # # # + cryptogen generate-config=./organizations/cryptogen/crypto-config-org1.yaml-output=organizationsorg1.example.com+ res=0+ set + Xerox # # # Create Org2 Identities # + cryptogen generate-config=./ Organizations/cryptogen/crypto-config-org2.yaml-- output=organizationsorg2.example.com+ res=0+ set + Xerox customers # Create Orderer Org Identities # # + cryptogen generate-- config=./organizations/cryptogen/crypto-config-orderer.yaml-- output=organizations+ res=0+ set + x is all the content of the article "how HyperLedgr deploys and initializes the network" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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