Fabric笔记(二) test-network安装链码源码详解

链码安装

指令: peer lifecycle chaincode install ${CC_NAME}.tar.gz

lifecycle chaincode install

代码位置: internal/peer/lifecycle

源码解析

指令: internal/peer/lifecycle/chaincode/install.go

InstallCmd函数

步骤1 NewClientConnections

1. 背书Endorser及排序Orderer的Client来自于脚本中的fabric-samples/test-network/scripts/envVar.sh的setGlobalsCLI函数的变量设置CORE_PEER_ADDRESS

2. 由parsePeerConnectionParameters函数设置

流程2 Install

  func (i *Installer) Install() error {
      err := i.Input.Validate()
      if err != nil {
  	    return err
      }

      pkgBytes, err := i.Reader.ReadFile(i.Input.PackageFile)
      if err != nil {
  	    return errors.WithMessagef(err, "failed to read chaincode package at '%s'", i.Input.PackageFile)
      }

      serializedSigner, err := i.Signer.Serialize()
      if err != nil {
  	    return errors.Wrap(err, "failed to serialize signer")
      }

      proposal, err := i.createInstallProposal(pkgBytes, serializedSigner)
      if err != nil {
  	    return err
      }

      signedProposal, err := signProposal(proposal, i.Signer)
      if err != nil {
  	    return errors.WithMessage(err, "failed to create signed proposal for chaincode install")
      }

      return i.submitInstallProposal(signedProposal)
  }

2.1 读取链码文件到[]byte中

 pkgBytes, err := i.Reader.ReadFile(i.Input.PackageFile)

2.2 创建提案proposal

 proposal, err := i.createInstallProposal(pkgBytes, serializedSigner)

将链码和参数，签名者封装到proposal中

2.3 签名提案proposal

  signedProposal, err := signProposal(proposal, i.Signer)

2.4 提交提案proposal

  submitInstallProposal

submitInstallProposal

  proposalResponse, err := i.EndorserClient.ProcessProposal(context.Background(), signedProposal)

将链码和参数封装到
由EndorserClient向Endorser的Peer节点发送消息

补充签名者信息

1. 默认签名者 bccspmsp

msp/mspimpl.go

2. 默认签名者 bccspmsp 初始化

msp/mspimplsetup.go setupV142