hyperledger-fabric - hyperledger fabric 的 configtx yaml 中的 "Policies"是什么？

Question

我正在尝试通过引用“fabric-samples”中提供的“basic network”和“First Network”来创建自己的 fabric 网络

我在“configtx”yaml 文件中遇到了名为“策略”的部分。

请帮助我理解这部分的意义。

Answer 1

策略基本上是管理 channel 内访问控制的规则/定义。它们有两种类型

1. 签名 - 您可能见过此类政策(使用 AND、OR 等术语，比隐式元政策更灵活)
2. 隐式元 - 不太灵活(使用 ANY、MAJORITY 等术语)

例子1.签名 组织:

- &Orderer
    Name: Orderer

    # ID to load the MSP definition as
    ID: OrdererMSP
    MSPDir: crypto-config/ordererOrganizations/example.com/msp
    Policies:
       #THIS IS WHERE YOU DEFINE THEM
       # SIGNATURE POLICIES USE TERMS LIKE OR,AND,NOutOf etc.
        Readers:
            Type: Signature
            Rule: "OR('OrdererMSP.member')"
        Writers:
            Type: Signature
            Rule: "OR('OrdererMSP.member')"
        Admins:
            Type: Signature
            Rule: "OR('OrdererMSP.admin')"

1. 隐式元

应用程序:&ApplicationDefaults

# Organizations is the list of orgs which are defined as participants on
# the application side of the network
Organizations:

# Policies defines the set of policies at this level of the config tree
# For Application policies, their canonical path is
#   /Channel/Application/<PolicyName>
# ImplicitMeta Policy types use ANY,Majority etc.
Policies:
    Readers:
        Type: ImplicitMeta
        Rule: "ANY Readers"
    Writers:
        Type: ImplicitMeta
        Rule: "ANY Writers"
    Admins:
        Type: ImplicitMeta
        Rule: "MAJORITY Admins"

您可以在 hyperledger fabric 上阅读有关它们的更多信息，阅读文档:- https://hyperledger-fabric.readthedocs.io/en/release-1.3/policies.html