Hyperledger Fabric 介绍几个关键配置文件(三)

1 configtx.yaml

configtx.yaml是Hyperledger Fabric区块链网络运维工具configtxgen用于生成通道创世块或通道交易的配置文件,configtx.yaml的内容直接决定了所生成的创世区块的内容。
configtx.yaml主要用到了以下YAML语法:

符号 含义
<< 合并到当前数据
- 数组
* 别名
& 锚点

当byfn.sh脚本执行networkUp启动网络时,会调用generateChannelArtifacts创建Orderer通道的创世区块,应用通道配置配置交易文件channel.tx。根据不同的共识机制,传入不同的profile参数。

function generateChannelArtifacts() {
...
  if [ "$CONSENSUS_TYPE" == "solo" ]; then
    configtxgen -profile TwoOrgsOrdererGenesis -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
  elif [ "$CONSENSUS_TYPE" == "kafka" ]; then
    configtxgen -profile SampleDevModeKafka -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
  elif [ "$CONSENSUS_TYPE" == "etcdraft" ]; then
    configtxgen -profile SampleMultiNodeEtcdRaft -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
  else
    set +x
    echo "unrecognized CONSESUS_TYPE='$CONSENSUS_TYPE'. exiting"
    exit 1
  fi
...
}

1.1 Profiles / 配置入口

Profiles配置段用来定义用于configtxgen工具的配置入口。包含consortium的配置入口,可以用来生成排序节点的创世区块。如果在排序节点的创世区块中正确定义了consortium 的成员,那么可以仅使用机构成员名称和委员会的名称来生成通道创建请求。

  • TwoOrgsOrdererGenesis:生成solo订购服务的创始块。
  • SampleMultiNodeEtcdRaft:生成Raft订购服务的创始块。仅在发出-o标志并指定时使用etcdraft。
  • SampleDevModeKafka:生成Kafka订购服务的创世块。仅在发出-o标志并指定时使用kafka。
  • TwoOrgsChannel:生成channel创世块。
Profiles:

    TwoOrgsOrdererGenesis:
        <<: *ChannelDefaults
        Orderer:
            <<: *OrdererDefaults
            Organizations:
                - *OrdererOrg
            Capabilities:
                <<: *OrdererCapabilities
        Consortiums:
            SampleConsortium:
                Organizations:
                    - *Org1
                    - *Org2
    TwoOrgsChannel:
        Consortium: SampleConsortium
        <<: *ChannelDefaults
        Application:
            <<: *ApplicationDefaults
            Organizations:
                - *Org1
                - *Org2
            Capabilities:
                <<: *ApplicationCapabilities

    SampleDevModeKafka:
        <<: *ChannelDefaults
        Capabilities:
            <<: *ChannelCapabilities
        Orderer:
            <<: *OrdererDefaults
            OrdererType: kafka
            Kafka:
                Brokers:
                - kafka.example.com:9092

            Organizations:
            - *OrdererOrg
            Capabilities:
                <<: *OrdererCapabilities
        Application:
            <<: *ApplicationDefaults
            Organizations:
            - <<: *OrdererOrg
        Consortiums:
            SampleConsortium:
                Organizations:
                - *Org1
                - *Org2

    SampleMultiNodeEtcdRaft:
        <<: *ChannelDefaults
        Capabilities:
            <<: *ChannelCapabilities
        Orderer:
            <<: *OrdererDefaults
            OrdererType: etcdraft
            EtcdRaft:
                Consenters:
                - Host: orderer.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
                - Host: orderer2.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
                - Host: orderer3.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
                - Host: orderer4.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
                - Host: orderer5.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt
            Addresses:
                - orderer.example.com:7050
                - orderer2.example.com:7050
                - orderer3.example.com:7050
                - orderer4.example.com:7050
                - orderer5.example.com:7050

            Organizations:
            - *OrdererOrg
            Capabilities:
                <<: *OrdererCapabilities
        Application:
            <<: *ApplicationDefaults
            Organizations:
            - <<: *OrdererOrg
        Consortiums:
            SampleConsortium:
                Organizations:
                - *Org1
                - *Org2

1.2 Capabilities / 通道能力配置

Capabilities段定义了fabric程序要加入网络所必须支持的特性。通过定义通道的能力,就明确了不满足该能力要求的fabric程序,将无法处理 交易,除非升级到新的版本。

Capabilities:
    Channel: &ChannelCapabilities
        # orderers and peers on a channel are at v1.4.3 or later.
        V1_4_3: true
        V1_3: false
        V1_1: false

    Orderer: &OrdererCapabilities
        # orderers on a channel are at v1.4.2 or later.
        V1_4_2: true
        V1_1: false

    Application: &ApplicationCapabilities
        V1_4_2: true
        V1_3: false
        V1_2: false
        V1_1: false

1.3 Organizations / 组织机构配置

Organizations配置段用来定义组织机构实体,以便在后续配置中引用。

配置参数名 含义
Name 组织名称
ID MSP ID
MSPDir msp目录(关于MSP这块后续单独说明)
AnchorPeers 该组织的锚节点

Fabric主要通过策略(Policy)来控制各种场景下访问这些资源的权限限制。Fabric实现了两种类型的Policy来满足不同的场景需求:

  • Signature Policy: 用于明确指定哪些参与实体(Principal)必须签名,才能满足该策略。它支持AND, OR, 以及 NOutOf这样的策略组合。比如:"必须Org1和Org2的成员都签名",或者“在20个组织管理员中至少有11个人的签名”。应用场景是:背书策略、智能合约实例化策略等。
    Signature类型Rule的格式为:EXPR(E[, E...]),解释如下:
    EXPR有三个选项:AND, OR 和 OutOf。E表示责任人(英文:principal)
Principal 解释
Org0.admin Org0组织中的任何管理员
Org1.member Org1组织中的任何用户
Org1.client Org1组织中的任何客户端
Org1.peer Org1组织中的任何peer
  • ImplicitMeta Policy: 它不像Signature Policy那么灵活,而是组合了多条子策略评估的结果,只有组合的结果满足给定规则(Rule),才能满足该策略。这种策略的描述形式是: " "。默认支持的Rule有:ANY, ALL, MAJORITY。比如:"超过半数的通道内组织的管理员签名"(Rule则是:超过半数,子策略是:组织的管理员签名)。
    应用场景是:用于配置管理相关的操作比如:通道创建策略、通道配置策略等,以及从Orderer读取通道配置的策略,或者访问Peer获取区块的策略等等。
    ImplicitMetaPolicy类型Rule的格式为:

    如:Rule: ANY Readers表示任意子节点中的Reader策略。
Organizations:

    # SampleOrg defines an MSP using the sampleconfig.  It should never be used
    # in production but may be used as a template for other definitions
    - &OrdererOrg
        # DefaultOrg defines the organization which is used in the sampleconfig
        # of the fabric.git development environment
        Name: OrdererOrg

        # ID to load the MSP definition as
        ID: OrdererMSP

        # MSPDir is the filesystem path which contains the MSP configuration
        MSPDir: crypto-config/ordererOrganizations/example.com/msp

        # Policies defines the set of policies at this level of the config tree
        # For organization policies, their canonical path is usually
        #   /Channel///
        Policies:
            Readers:
                Type: Signature
                Rule: "OR('OrdererMSP.member')"
            Writers:
                Type: Signature
                Rule: "OR('OrdererMSP.member')"
            Admins:
                Type: Signature
                Rule: "OR('OrdererMSP.admin')"

    - &Org1
        # DefaultOrg defines the organization which is used in the sampleconfig
        # of the fabric.git development environment
        Name: Org1MSP

        # ID to load the MSP definition as
        ID: Org1MSP

        MSPDir: crypto-config/peerOrganizations/org1.example.com/msp

        # Policies defines the set of policies at this level of the config tree
        # For organization policies, their canonical path is usually
        #   /Channel///
        Policies:
            Readers:
                Type: Signature
                Rule: "OR('Org1MSP.admin', 'Org1MSP.peer', 'Org1MSP.client')"
            Writers:
                Type: Signature
                Rule: "OR('Org1MSP.admin', 'Org1MSP.client')"
            Admins:
                Type: Signature
                Rule: "OR('Org1MSP.admin')"

        # leave this flag set to true.
        AnchorPeers:
            # AnchorPeers defines the location of peers which can be used
            # for cross org gossip communication.  Note, this value is only
            # encoded in the genesis block in the Application section context
            - Host: peer0.org1.example.com
              Port: 7051

    - &Org2
        # DefaultOrg defines the organization which is used in the sampleconfig
        # of the fabric.git development environment
        Name: Org2MSP

        # ID to load the MSP definition as
        ID: Org2MSP

        MSPDir: crypto-config/peerOrganizations/org2.example.com/msp

        # Policies defines the set of policies at this level of the config tree
        # For organization policies, their canonical path is usually
        #   /Channel///
        Policies:
            Readers:
                Type: Signature
                Rule: "OR('Org2MSP.admin', 'Org2MSP.peer', 'Org2MSP.client')"
            Writers:
                Type: Signature
                Rule: "OR('Org2MSP.admin', 'Org2MSP.client')"
            Admins:
                Type: Signature
                Rule: "OR('Org2MSP.admin')"

        AnchorPeers:
            # AnchorPeers defines the location of peers which can be used
            # for cross org gossip communication.  Note, this value is only
            # encoded in the genesis block in the Application section context
            - Host: peer0.org2.example.com
              Port: 9051

1.4 Orderer / 排序节点配置

Orderer配置段用来定义要编码写入创世区块或通道交易的排序节点参数。

配置参数名 含义
OrdererType 类型solo或者kafka
Addresses Orderer地址
BatchTimeout 区块生成超时时间
MaxMessageCount 区块消息数量
AbsoluteMaxBytes 区块绝对最大字节数
PreferredMaxBytes 建议消息字节数
Brokers kafka地址
Orderer: &OrdererDefaults

    # Orderer Type: The orderer implementation to start
    # Available types are "solo","kafka"  and "etcdraft"
    OrdererType: solo

    Addresses:
        - orderer.example.com:7050

    # Batch Timeout: The amount of time to wait before creating a batch
    BatchTimeout: 2s

    # Batch Size: Controls the number of messages batched into a block
    BatchSize:

        # Max Message Count: The maximum number of messages to permit in a batch
        MaxMessageCount: 10

        # Absolute Max Bytes: The absolute maximum number of bytes allowed for
        # the serialized messages in a batch.
        AbsoluteMaxBytes: 99 MB

        # Preferred Max Bytes: The preferred maximum number of bytes allowed for
        # the serialized messages in a batch. A message larger than the preferred
        # max bytes will result in a batch larger than preferred max bytes.
        PreferredMaxBytes: 512 KB

    Kafka:
        # Brokers: A list of Kafka brokers to which the orderer connects
        # NOTE: Use IP:port notation
        Brokers:
            - 127.0.0.1:9092

    # EtcdRaft defines configuration which must be set when the "etcdraft"
    # orderertype is chosen.
    EtcdRaft:
        # The set of Raft replicas for this network. For the etcd/raft-based
        # implementation, we expect every replica to also be an OSN. Therefore,
        # a subset of the host:port items enumerated in this list should be
        # replicated under the Orderer.Addresses key above.
        Consenters:
            - Host: orderer.example.com
              Port: 7050
              ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
              ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
            - Host: orderer2.example.com
              Port: 7050
              ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
              ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
            - Host: orderer3.example.com
              Port: 7050
              ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
              ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
            - Host: orderer4.example.com
              Port: 7050
              ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
              ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
            - Host: orderer5.example.com
              Port: 7050
              ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt
              ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt

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

    # Policies defines the set of policies at this level of the config tree
    # For Orderer policies, their canonical path is
    #   /Channel/Orderer/
    Policies:
        Readers:
            Type: ImplicitMeta
            Rule: "ANY Readers"
        Writers:
            Type: ImplicitMeta
            Rule: "ANY Writers"
        Admins:
            Type: ImplicitMeta
            Rule: "MAJORITY Admins"
        # BlockValidation specifies what signatures must be included in the block
        # from the orderer for the peer to validate it.
        BlockValidation:
            Type: ImplicitMeta
            Rule: "ANY Writers"

1.5 Channel / 通道配置

Channel配置段用来定义要写入创世区块或配置交易的通道参数。

Channel: &ChannelDefaults
    # Policies defines the set of policies at this level of the config tree
    # For Channel policies, their canonical path is
    #   /Channel/
    Policies:
        # Who may invoke the 'Deliver' API
        Readers:
            Type: ImplicitMeta
            Rule: "ANY Readers"
        # Who may invoke the 'Broadcast' API
        Writers:
            Type: ImplicitMeta
            Rule: "ANY Writers"
        # By default, who may modify elements at this config level
        Admins:
            Type: ImplicitMeta
            Rule: "MAJORITY Admins"

    # Capabilities describes the channel level capabilities, see the
    # dedicated Capabilities section elsewhere in this file for a full
    # description
    Capabilities:
        <<: *ChannelCapabilities

1.6 Application / 应用配置

Application配置段用来定义要写入创世区块或配置交易的应用参数。

Application: &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/
    Policies:
        Readers:
            Type: ImplicitMeta
            Rule: "ANY Readers"
        Writers:
            Type: ImplicitMeta
            Rule: "ANY Writers"
        Admins:
            Type: ImplicitMeta
            Rule: "MAJORITY Admins"

    Capabilities:
        <<: *ApplicationCapabilities

2 core.yaml

core.yaml配置文件是Peer节点的示例配置文件,该core.yaml示例配置文件中共指定了六大部分内容。

在Fabirc源码中的路径为:$GOPATH/src/github.com/hyperledger/fabric/sampleconfig/core.yaml

2.1 peer部分

peer:

    # The Peer id is used for identifying this Peer instance.
    id: jdoe

    # The networkId allows for logical seperation of networks
    networkId: dev

    # The Address at local network interface this Peer will listen on.
    # By default, it will listen on all network interfaces
    listenAddress: 0.0.0.0:7051

    # The endpoint this peer uses to listen for inbound chaincode connections.
    # If this is commented-out, the listen address is selected to be
    # the peer's address (see below) with port 7052
    # chaincodeListenAddress: 0.0.0.0:7052

    # The endpoint the chaincode for this peer uses to connect to the peer.
    # If this is not specified, the chaincodeListenAddress address is selected.
    # And if chaincodeListenAddress is not specified, address is selected from
    # peer listenAddress.
    # chaincodeAddress: 0.0.0.0:7052

    # When used as peer config, this represents the endpoint to other peers
    # in the same organization. For peers in other organization, see
    # gossip.externalEndpoint for more info.
    # When used as CLI config, this means the peer's endpoint to interact with
    address: 0.0.0.0:7051

    # Whether the Peer should programmatically determine its address
    # This case is useful for docker containers.
    addressAutoDetect: false

    # Setting for runtime.GOMAXPROCS(n). If n < 1, it does not change the
    # current setting
    gomaxprocs: -1

    # Keepalive settings for peer server and clients
    keepalive:
        # MinInterval is the minimum permitted time between client pings.
        # If clients send pings more frequently, the peer server will
        # disconnect them
        minInterval: 60s
        # Client keepalive settings for communicating with other peer nodes
        client:
            # Interval is the time between pings to peer nodes.  This must
            # greater than or equal to the minInterval specified by peer
            # nodes
            interval: 60s
            # Timeout is the duration the client waits for a response from
            # peer nodes before closing the connection
            timeout: 20s
        # DeliveryClient keepalive settings for communication with ordering
        # nodes.
        deliveryClient:
            # Interval is the time between pings to ordering nodes.  This must
            # greater than or equal to the minInterval specified by ordering
            # nodes.
            interval: 60s
            # Timeout is the duration the client waits for a response from
            # ordering nodes before closing the connection
            timeout: 20s


    # Gossip related configuration
    gossip:
        # Bootstrap set to initialize gossip with.
        # This is a list of other peers that this peer reaches out to at startup.
        # Important: The endpoints here have to be endpoints of peers in the same
        # organization, because the peer would refuse connecting to these endpoints
        # unless they are in the same organization as the peer.
        bootstrap: 127.0.0.1:7051

        # NOTE: orgLeader and useLeaderElection parameters are mutual exclusive.
        # Setting both to true would result in the termination of the peer
        # since this is undefined state. If the peers are configured with
        # useLeaderElection=false, make sure there is at least 1 peer in the
        # organization that its orgLeader is set to true.

        # Defines whenever peer will initialize dynamic algorithm for
        # "leader" selection, where leader is the peer to establish
        # connection with ordering service and use delivery protocol
        # to pull ledger blocks from ordering service. It is recommended to
        # use leader election for large networks of peers.
        useLeaderElection: true
        # Statically defines peer to be an organization "leader",
        # where this means that current peer will maintain connection
        # with ordering service and disseminate block across peers in
        # its own organization
        orgLeader: false

        # Interval for membershipTracker polling
        membershipTrackerInterval: 5s

        # Overrides the endpoint that the peer publishes to peers
        # in its organization. For peers in foreign organizations
        # see 'externalEndpoint'
        endpoint:
        # Maximum count of blocks stored in memory
        maxBlockCountToStore: 100
        # Max time between consecutive message pushes(unit: millisecond)
        maxPropagationBurstLatency: 10ms
        # Max number of messages stored until a push is triggered to remote peers
        maxPropagationBurstSize: 10
        # Number of times a message is pushed to remote peers
        propagateIterations: 1
        # Number of peers selected to push messages to
        propagatePeerNum: 3
        # Determines frequency of pull phases(unit: second)
        # Must be greater than digestWaitTime + responseWaitTime
        pullInterval: 4s
        # Number of peers to pull from
        pullPeerNum: 3
        # Determines frequency of pulling state info messages from peers(unit: second)
        requestStateInfoInterval: 4s
        # Determines frequency of pushing state info messages to peers(unit: second)
        publishStateInfoInterval: 4s
        # Maximum time a stateInfo message is kept until expired
        stateInfoRetentionInterval:
        # Time from startup certificates are included in Alive messages(unit: second)
        publishCertPeriod: 10s
        # Should we skip verifying block messages or not (currently not in use)
        skipBlockVerification: false
        # Dial timeout(unit: second)
        dialTimeout: 3s
        # Connection timeout(unit: second)
        connTimeout: 2s
        # Buffer size of received messages
        recvBuffSize: 20
        # Buffer size of sending messages
        sendBuffSize: 200
        # Time to wait before pull engine processes incoming digests (unit: second)
        # Should be slightly smaller than requestWaitTime
        digestWaitTime: 1s
        # Time to wait before pull engine removes incoming nonce (unit: milliseconds)
        # Should be slightly bigger than digestWaitTime
        requestWaitTime: 1500ms
        # Time to wait before pull engine ends pull (unit: second)
        responseWaitTime: 2s
        # Alive check interval(unit: second)
        aliveTimeInterval: 5s
        # Alive expiration timeout(unit: second)
        aliveExpirationTimeout: 25s
        # Reconnect interval(unit: second)
        reconnectInterval: 25s
        # This is an endpoint that is published to peers outside of the organization.
        # If this isn't set, the peer will not be known to other organizations.
        externalEndpoint:
        # Leader election service configuration
        election:
            # Longest time peer waits for stable membership during leader election startup (unit: second)
            startupGracePeriod: 15s
            # Interval gossip membership samples to check its stability (unit: second)
            membershipSampleInterval: 1s
            # Time passes since last declaration message before peer decides to perform leader election (unit: second)
            leaderAliveThreshold: 10s
            # Time between peer sends propose message and declares itself as a leader (sends declaration message) (unit: second)
            leaderElectionDuration: 5s

        pvtData:
            # pullRetryThreshold determines the maximum duration of time private data corresponding for a given block
            # would be attempted to be pulled from peers until the block would be committed without the private data
            pullRetryThreshold: 60s
            # As private data enters the transient store, it is associated with the peer's ledger's height at that time.
            # transientstoreMaxBlockRetention defines the maximum difference between the current ledger's height upon commit,
            # and the private data residing inside the transient store that is guaranteed not to be purged.
            # Private data is purged from the transient store when blocks with sequences that are multiples
            # of transientstoreMaxBlockRetention are committed.
            transientstoreMaxBlockRetention: 1000
            # pushAckTimeout is the maximum time to wait for an acknowledgement from each peer
            # at private data push at endorsement time.
            pushAckTimeout: 3s
            # Block to live pulling margin, used as a buffer
            # to prevent peer from trying to pull private data
            # from peers that is soon to be purged in next N blocks.
            # This helps a newly joined peer catch up to current
            # blockchain height quicker.
            btlPullMargin: 10
            # the process of reconciliation is done in an endless loop, while in each iteration reconciler tries to
            # pull from the other peers the most recent missing blocks with a maximum batch size limitation.
            # reconcileBatchSize determines the maximum batch size of missing private data that will be reconciled in a
            # single iteration.
            reconcileBatchSize: 10
            # reconcileSleepInterval determines the time reconciler sleeps from end of an iteration until the beginning
            # of the next reconciliation iteration.
            reconcileSleepInterval: 1m
            # reconciliationEnabled is a flag that indicates whether private data reconciliation is enable or not.
            reconciliationEnabled: true
            # skipPullingInvalidTransactionsDuringCommit is a flag that indicates whether pulling of invalid
            # transaction's private data from other peers need to be skipped during the commit time and pulled
            # only through reconciler.
            skipPullingInvalidTransactionsDuringCommit: false

        # Gossip state transfer related configuration
        state:
            # indicates whenever state transfer is enabled or not
            # default value is true, i.e. state transfer is active
            # and takes care to sync up missing blocks allowing
            # lagging peer to catch up to speed with rest network
            enabled: true
            # checkInterval interval to check whether peer is lagging behind enough to
            # request blocks via state transfer from another peer.
            checkInterval: 10s
            # responseTimeout amount of time to wait for state transfer response from
            # other peers
            responseTimeout: 3s
            # batchSize the number of blocks to request via state transfer from another peer
            batchSize: 10
            # blockBufferSize reflect the maximum distance between lowest and
            # highest block sequence number state buffer to avoid holes.
            # In order to ensure absence of the holes actual buffer size
            # is twice of this distance
            blockBufferSize: 100
            # maxRetries maximum number of re-tries to ask
            # for single state transfer request
            maxRetries: 3

    # TLS Settings
    # Note that peer-chaincode connections through chaincodeListenAddress is
    # not mutual TLS auth. See comments on chaincodeListenAddress for more info
    tls:
        # Require server-side TLS
        enabled:  false
        # Require client certificates / mutual TLS.
        # Note that clients that are not configured to use a certificate will
        # fail to connect to the peer.
        clientAuthRequired: false
        # X.509 certificate used for TLS server
        cert:
            file: tls/server.crt
        # Private key used for TLS server (and client if clientAuthEnabled
        # is set to true
        key:
            file: tls/server.key
        # Trusted root certificate chain for tls.cert
        rootcert:
            file: tls/ca.crt
        # Set of root certificate authorities used to verify client certificates
        clientRootCAs:
            files:
              - tls/ca.crt
        # Private key used for TLS when making client connections.  If
        # not set, peer.tls.key.file will be used instead
        clientKey:
            file:
        # X.509 certificate used for TLS when making client connections.
        # If not set, peer.tls.cert.file will be used instead
        clientCert:
            file:

    # Authentication contains configuration parameters related to authenticating
    # client messages
    authentication:
        # the acceptable difference between the current server time and the
        # client's time as specified in a client request message
        timewindow: 15m

    # Path on the file system where peer will store data (eg ledger). This
    # location must be access control protected to prevent unintended
    # modification that might corrupt the peer operations.
    fileSystemPath: /var/hyperledger/production

    # BCCSP (Blockchain crypto provider): Select which crypto implementation or
    # library to use
    BCCSP:
        Default: SW
        # Settings for the SW crypto provider (i.e. when DEFAULT: SW)
        SW:
            # TODO: The default Hash and Security level needs refactoring to be
            # fully configurable. Changing these defaults requires coordination
            # SHA2 is hardcoded in several places, not only BCCSP
            Hash: SHA2
            Security: 256
            # Location of Key Store
            FileKeyStore:
                # If "", defaults to 'mspConfigPath'/keystore
                KeyStore:
        # Settings for the PKCS#11 crypto provider (i.e. when DEFAULT: PKCS11)
        PKCS11:
            # Location of the PKCS11 module library
            Library:
            # Token Label
            Label:
            # User PIN
            Pin:
            Hash:
            Security:
            FileKeyStore:
                KeyStore:

    # Path on the file system where peer will find MSP local configurations
    mspConfigPath: msp

    # Identifier of the local MSP
    # ----!!!!IMPORTANT!!!-!!!IMPORTANT!!!-!!!IMPORTANT!!!!----
    # Deployers need to change the value of the localMspId string.
    # In particular, the name of the local MSP ID of a peer needs
    # to match the name of one of the MSPs in each of the channel
    # that this peer is a member of. Otherwise this peer's messages
    # will not be identified as valid by other nodes.
    localMspId: SampleOrg

    # CLI common client config options
    client:
        # connection timeout
        connTimeout: 3s

    # Delivery service related config
    deliveryclient:
        # The total time to spend retrying connections to ordering nodes
        # before giving up and returning an error.
        reconnectTotalTimeThreshold: 3600s

        # The connection timeout when connecting to ordering service nodes.
        connTimeout: 3s

        # The maximum delay between consecutive connection retry attempts to
        # ordering nodes.
        reConnectBackoffThreshold: 3600s

        # A list of orderer endpoint addresses which should be overridden
        # when found in channel configurations.
        addressOverrides:
        #  - from:
        #    to:
        #    caCertsFile:
        #  - from:
        #    to:
        #    caCertsFile:

    # Type for the local MSP - by default it's of type bccsp
    localMspType: bccsp

    # Used with Go profiling tools only in none production environment. In
    # production, it should be disabled (eg enabled: false)
    profile:
        enabled:     false
        listenAddress: 0.0.0.0:6060

    # The admin service is used for administrative operations such as
    # control over logger levels, etc.
    # Only peer administrators can use the service.
    adminService:
        # The interface and port on which the admin server will listen on.
        # If this is commented out, or the port number is equal to the port
        # of the peer listen address - the admin service is attached to the
        # peer's service (defaults to 7051).
        #listenAddress: 0.0.0.0:7055

    # Handlers defines custom handlers that can filter and mutate
    # objects passing within the peer, such as:
    #   Auth filter - reject or forward proposals from clients
    #   Decorators  - append or mutate the chaincode input passed to the chaincode
    #   Endorsers   - Custom signing over proposal response payload and its mutation
    # Valid handler definition contains:
    #   - A name which is a factory method name defined in
    #     core/handlers/library/library.go for statically compiled handlers
    #   - library path to shared object binary for pluggable filters
    # Auth filters and decorators are chained and executed in the order that
    # they are defined. For example:
    # authFilters:
    #   -
    #     name: FilterOne
    #     library: /opt/lib/filter.so
    #   -
    #     name: FilterTwo
    # decorators:
    #   -
    #     name: DecoratorOne
    #   -
    #     name: DecoratorTwo
    #     library: /opt/lib/decorator.so
    # Endorsers are configured as a map that its keys are the endorsement system chaincodes that are being overridden.
    # Below is an example that overrides the default ESCC and uses an endorsement plugin that has the same functionality
    # as the default ESCC.
    # If the 'library' property is missing, the name is used as the constructor method in the builtin library similar
    # to auth filters and decorators.
    # endorsers:
    #   escc:
    #     name: DefaultESCC
    #     library: /etc/hyperledger/fabric/plugin/escc.so
    handlers:
        authFilters:
          -
            name: DefaultAuth
          -
            name: ExpirationCheck    # This filter checks identity x509 certificate expiration
        decorators:
          -
            name: DefaultDecorator
        endorsers:
          escc:
            name: DefaultEndorsement
            library:
        validators:
          vscc:
            name: DefaultValidation
            library:

    #    library: /etc/hyperledger/fabric/plugin/escc.so
    # Number of goroutines that will execute transaction validation in parallel.
    # By default, the peer chooses the number of CPUs on the machine. Set this
    # variable to override that choice.
    # NOTE: overriding this value might negatively influence the performance of
    # the peer so please change this value only if you know what you're doing
    validatorPoolSize:

    # The discovery service is used by clients to query information about peers,
    # such as - which peers have joined a certain channel, what is the latest
    # channel config, and most importantly - given a chaincode and a channel,
    # what possible sets of peers satisfy the endorsement policy.
    discovery:
        enabled: true
        # Whether the authentication cache is enabled or not.
        authCacheEnabled: true
        # The maximum size of the cache, after which a purge takes place
        authCacheMaxSize: 1000
        # The proportion (0 to 1) of entries that remain in the cache after the cache is purged due to overpopulation
        authCachePurgeRetentionRatio: 0.75
        # Whether to allow non-admins to perform non channel scoped queries.
        # When this is false, it means that only peer admins can perform non channel scoped queries.
        orgMembersAllowedAccess: false

2.2 VM部分

vm:

    # Endpoint of the vm management system.  For docker can be one of the following in general
    # unix:///var/run/docker.sock
    # http://localhost:2375
    # https://localhost:2376
    endpoint: unix:///var/run/docker.sock

    # settings for docker vms
    docker:
        tls:
            enabled: false
            ca:
                file: docker/ca.crt
            cert:
                file: docker/tls.crt
            key:
                file: docker/tls.key

        # Enables/disables the standard out/err from chaincode containers for
        # debugging purposes
        attachStdout: false

        # Parameters on creating docker container.
        # Container may be efficiently created using ipam & dns-server for cluster
        # NetworkMode - sets the networking mode for the container. Supported
        # standard values are: `host`(default),`bridge`,`ipvlan`,`none`.
        # Dns - a list of DNS servers for the container to use.
        # Note:  `Privileged` `Binds` `Links` and `PortBindings` properties of
        # Docker Host Config are not supported and will not be used if set.
        # LogConfig - sets the logging driver (Type) and related options
        # (Config) for Docker. For more info,
        # https://docs.docker.com/engine/admin/logging/overview/
        # Note: Set LogConfig using Environment Variables is not supported.
        hostConfig:
            NetworkMode: host
            Dns:
               # - 192.168.0.1
            LogConfig:
                Type: json-file
                Config:
                    max-size: "50m"
                    max-file: "5"
            Memory: 2147483648

2.3 链码部分

chaincode:

    # The id is used by the Chaincode stub to register the executing Chaincode
    # ID with the Peer and is generally supplied through ENV variables
    # the `path` form of ID is provided when installing the chaincode.
    # The `name` is used for all other requests and can be any string.
    id:
        path:
        name:

    # Generic builder environment, suitable for most chaincode types
    builder: $(DOCKER_NS)/fabric-ccenv:latest

    # Enables/disables force pulling of the base docker images (listed below)
    # during user chaincode instantiation.
    # Useful when using moving image tags (such as :latest)
    pull: false

    golang:
        # golang will never need more than baseos
        runtime: $(BASE_DOCKER_NS)/fabric-baseos:$(ARCH)-$(BASE_VERSION)

        # whether or not golang chaincode should be linked dynamically
        dynamicLink: false

    car:
        # car may need more facilities (JVM, etc) in the future as the catalog
        # of platforms are expanded.  For now, we can just use baseos
        runtime: $(BASE_DOCKER_NS)/fabric-baseos:$(ARCH)-$(BASE_VERSION)

    java:
        # This is an image based on java:openjdk-8 with addition compiler
        # tools added for java shim layer packaging.
        # This image is packed with shim layer libraries that are necessary
        # for Java chaincode runtime.
        runtime: $(DOCKER_NS)/fabric-javaenv:$(TWO_DIGIT_VERSION)

    node:
        # need node.js engine at runtime, currently available in baseimage
        # but not in baseos
        runtime: $(BASE_DOCKER_NS)/fabric-baseimage:$(ARCH)-$(BASE_VERSION)

    # Timeout duration for starting up a container and waiting for Register
    # to come through. 1sec should be plenty for chaincode unit tests
    startuptimeout: 300s

    # Timeout duration for Invoke and Init calls to prevent runaway.
    # This timeout is used by all chaincodes in all the channels, including
    # system chaincodes.
    # Note that during Invoke, if the image is not available (e.g. being
    # cleaned up when in development environment), the peer will automatically
    # build the image, which might take more time. In production environment,
    # the chaincode image is unlikely to be deleted, so the timeout could be
    # reduced accordingly.
    executetimeout: 30s

    # There are 2 modes: "dev" and "net".
    # In dev mode, user runs the chaincode after starting peer from
    # command line on local machine.
    # In net mode, peer will run chaincode in a docker container.
    mode: net

    # keepalive in seconds. In situations where the communiction goes through a
    # proxy that does not support keep-alive, this parameter will maintain connection
    # between peer and chaincode.
    # A value <= 0 turns keepalive off
    keepalive: 0

    # system chaincodes whitelist. To add system chaincode "myscc" to the
    # whitelist, add "myscc: enable" to the list below, and register in
    # chaincode/importsysccs.go
    system:
        cscc: enable
        lscc: enable
        escc: enable
        vscc: enable
        qscc: enable

    # System chaincode plugins:
    # System chaincodes can be loaded as shared objects compiled as Go plugins.
    # See examples/plugins/scc for an example.
    # Plugins must be white listed in the chaincode.system section above.
    systemPlugins:
      # example configuration:
      # - enabled: true
      #   name: myscc
      #   path: /opt/lib/myscc.so
      #   invokableExternal: true
      #   invokableCC2CC: true

    # Logging section for the chaincode container
    logging:
      # Default level for all loggers within the chaincode container
      level:  info
      # Override default level for the 'shim' logger
      shim:   warning
      # Format for the chaincode container logs
      format: '%{color}%{time:2006-01-02 15:04:05.000 MST} [%{module}] %{shortfunc} -> %{level:.4s} %{id:03x}%{color:reset} %{message}'

2.4 账本部分

ledger:

  blockchain:

  state:
    # stateDatabase - options are "goleveldb", "CouchDB"
    # goleveldb - default state database stored in goleveldb.
    # CouchDB - store state database in CouchDB
    stateDatabase: goleveldb
    # Limit on the number of records to return per query
    totalQueryLimit: 100000
    couchDBConfig:
       # It is recommended to run CouchDB on the same server as the peer, and
       # not map the CouchDB container port to a server port in docker-compose.
       # Otherwise proper security must be provided on the connection between
       # CouchDB client (on the peer) and server.
       couchDBAddress: 127.0.0.1:5984
       # This username must have read and write authority on CouchDB
       username:
       # The password is recommended to pass as an environment variable
       # during start up (eg CORE_LEDGER_STATE_COUCHDBCONFIG_PASSWORD).
       # If it is stored here, the file must be access control protected
       # to prevent unintended users from discovering the password.
       password:
       # Number of retries for CouchDB errors
       maxRetries: 3
       # Number of retries for CouchDB errors during peer startup
       maxRetriesOnStartup: 12
       # CouchDB request timeout (unit: duration, e.g. 20s)
       requestTimeout: 35s
       # Limit on the number of records per each CouchDB query
       # Note that chaincode queries are only bound by totalQueryLimit.
       # Internally the chaincode may execute multiple CouchDB queries,
       # each of size internalQueryLimit.
       internalQueryLimit: 1000
       # Limit on the number of records per CouchDB bulk update batch
       maxBatchUpdateSize: 1000
       # Warm indexes after every N blocks.
       # This option warms any indexes that have been
       # deployed to CouchDB after every N blocks.
       # A value of 1 will warm indexes after every block commit,
       # to ensure fast selector queries.
       # Increasing the value may improve write efficiency of peer and CouchDB,
       # but may degrade query response time.
       warmIndexesAfterNBlocks: 1
       # Create the _global_changes system database
       # This is optional.  Creating the global changes database will require
       # additional system resources to track changes and maintain the database
       createGlobalChangesDB: false

  history:
    # enableHistoryDatabase - options are true or false
    # Indicates if the history of key updates should be stored.
    # All history 'index' will be stored in goleveldb, regardless if using
    # CouchDB or alternate database for the state.
    enableHistoryDatabase: true

2.5 operation部分

operations:
    # host and port for the operations server
    listenAddress: 127.0.0.1:9443

    # TLS configuration for the operations endpoint
    tls:
        # TLS enabled
        enabled: false

        # path to PEM encoded server certificate for the operations server
        cert:
            file:

        # path to PEM encoded server key for the operations server
        key:
            file:

        # most operations service endpoints require client authentication when TLS
        # is enabled. clientAuthRequired requires client certificate authentication
        # at the TLS layer to access all resources.
        clientAuthRequired: false

        # paths to PEM encoded ca certificates to trust for client authentication
        clientRootCAs:
            files: []

2.6 metrics部分

metrics:
    # metrics provider is one of statsd, prometheus, or disabled
    provider: disabled

    # statsd configuration
    statsd:
        # network type: tcp or udp
        network: udp

        # statsd server address
        address: 127.0.0.1:8125

        # the interval at which locally cached counters and gauges are pushed
        # to statsd; timings are pushed immediately
        writeInterval: 10s

        # prefix is prepended to all emitted statsd metrics
        prefix:

3 orderer.yaml

orderer.yaml 配置文件是 Orderer 节点的示例配置文件,该 orderer.yaml 示例配置文件中共指定了五大部分内容。

在 Fabirc 源码中的路径为:$GOPATH/src/github.com/hyperledger/fabric/sampleconfig/orderer.yaml

3.1 General部分

General:
    LedgerType: file   #指定账本类型(可选file、RAM、json三种)
    ListenAddress: 127.0.0.1  #监听地址
    ListenPort: 7050  #监听端口号

    # GRPC服务的TLS设置
    TLS:
        Enabled: false  #默认不开启
        PrivateKey: tls/server.key  #签名的私钥文件
        Certificate: tls/server.crt  #证书文件
        RootCAs:   #根CA证书
          - tls/ca.crt
        ClientAuthRequired: false
        ClientRootCAs:
    # GRPC服务的激活设置
    Keepalive:
        ServerMinInterval: 60s    # 客户端ping的最小允许时间
        ServerInterval: 7200s     # 连接到客户端的时间
        ServerTimeout: 20s       # 服务器等待的超时时间
    # Cluster settings for ordering service nodes that communicate with other ordering service nodes
    # such as Raft based ordering service.
    Cluster:
        # SendBufferSize is the maximum number of messages in the egress buffer.
        # Consensus messages are dropped if the buffer is full, and transaction
        # messages are waiting for space to be freed.
        SendBufferSize: 10
        # ClientCertificate governs the file location of the client TLS certificate
        # used to establish mutual TLS connections with other ordering service nodes.
        ClientCertificate:
        # ClientPrivateKey governs the file location of the private key of the client TLS certificate.
        ClientPrivateKey:
        # The below 4 properties should be either set together, or be unset together.
        # If they are set, then the orderer node uses a separate listener for intra-cluster
        # communication. If they are unset, then the general orderer listener is used.
        # This is useful if you want to use a different TLS server certificates on the
        # client-facing and the intra-cluster listeners.

        # ListenPort defines the port on which the cluster listens to connections.
        ListenPort:
        # ListenAddress defines the IP on which to listen to intra-cluster communication.
        ListenAddress:
        # ServerCertificate defines the file location of the server TLS certificate used for intra-cluster
        # communication.
        ServerCertificate:
        # ServerPrivateKey defines the file location of the private key of the TLS certificate.
        ServerPrivateKey:

    GenesisMethod: provisional  # 生成初始区块的提供方式(可选provisional、file两种)
    GenesisProfile: SampleInsecureSolo   # 用于动态生成初始区块的概要
    GenesisFile: genesisblock   # 生成初始区块的配置文件 

    LocalMSPDir: msp # MSP目录
    LocalMSPID: SampleOrg  # MSP ID

    # 是否为Go启用HTTP服务
    Profile:
        Enabled: false
        Address: 0.0.0.0:6060

    # 区块链加密实现
    BCCSP:
        #  - SW: # 软件加密
        #  - PKCS11: # CA硬件加密
        Default: SW   # 默认使用SW加密

        SW:
            Hash: SHA2
            Security: 256
            FileKeyStore:
                KeyStore:

        PKCS11:
            Library:
            Label:
            Pin:
            Hash:
            Security:
            FileKeyStore:
                KeyStore:

 authenticating
    Authentication:
        TimeWindow: 15m  # 当前服务器时间与客户端请求消息中可接受的时间差

3.2 FileLedger部分

文件账本配置信息

FileLedger:
    Location: /var/hyperledger/production/orderer  //区块的存储路径
    Prefix: hyperledger-fabric-ordererledger  //临时空间中创建账本目录时使用的前缀

3.3 RAMLedger部分

内存账本配置信息

RAMLedger:
    HistorySize: 1000  //如果设置成保存在内存中,保留的最大区块数

3.4 Kafka部分

Kafka 集群的配置信息

Kafka:

    # Retry: What do if a connection to the Kafka cluster cannot be established,
    # or if a metadata request to the Kafka cluster needs to be repeated.
    Retry:
        # When a new channel is created, or when an existing channel is reloaded
        # (in case of a just-restarted orderer), the orderer interacts with the
        # Kafka cluster in the following ways:
        # 1. It creates a Kafka producer (writer) for the Kafka partition that
        # corresponds to the channel.
        # 2. It uses that producer to post a no-op CONNECT message to that
        # partition
        # 3. It creates a Kafka consumer (reader) for that partition.
        # If any of these steps fail, they will be re-attempted every
        #  for a total of , and then every
        #  for a total of  until they succeed.
        # Note that the orderer will be unable to write to or read from a
        # channel until all of the steps above have been completed successfully.
        ShortInterval: 5s
        ShortTotal: 10m
        LongInterval: 5m
        LongTotal: 12h
        # Affects the socket timeouts when waiting for an initial connection, a
        # response, or a transmission. See Config.Net for more info:
        # https://godoc.org/github.com/Shopify/sarama#Config
        NetworkTimeouts:
            DialTimeout: 10s
            ReadTimeout: 10s
            WriteTimeout: 10s
        # Affects the metadata requests when the Kafka cluster is in the middle
        # of a leader election.See Config.Metadata for more info:
        # https://godoc.org/github.com/Shopify/sarama#Config
        Metadata:
            RetryBackoff: 250ms
            RetryMax: 3
        # What to do if posting a message to the Kafka cluster fails. See
        # Config.Producer for more info:
        # https://godoc.org/github.com/Shopify/sarama#Config
        Producer:
            RetryBackoff: 100ms
            RetryMax: 3
        # What to do if reading from the Kafka cluster fails. See
        # Config.Consumer for more info:
        # https://godoc.org/github.com/Shopify/sarama#Config
        Consumer:
            RetryBackoff: 2s
    # Settings to use when creating Kafka topics.  Only applies when
    # Kafka.Version is v0.10.1.0 or higher
    Topic:
        # The number of Kafka brokers across which to replicate the topic
        ReplicationFactor: 3
    # Verbose: Enable logging for interactions with the Kafka cluster.
    Verbose: false

    # TLS: TLS settings for the orderer's connection to the Kafka cluster.
    TLS:

      # Enabled: Use TLS when connecting to the Kafka cluster.
      Enabled: false

      # PrivateKey: PEM-encoded private key the orderer will use for
      # authentication.
      PrivateKey:
        # As an alternative to specifying the PrivateKey here, uncomment the
        # following "File" key and specify the file name from which to load the
        # value of PrivateKey.
        #File: path/to/PrivateKey

      # Certificate: PEM-encoded signed public key certificate the orderer will
      # use for authentication.
      Certificate:
        # As an alternative to specifying the Certificate here, uncomment the
        # following "File" key and specify the file name from which to load the
        # value of Certificate.
        #File: path/to/Certificate

      # RootCAs: PEM-encoded trusted root certificates used to validate
      # certificates from the Kafka cluster.
      RootCAs:
        # As an alternative to specifying the RootCAs here, uncomment the
        # following "File" key and specify the file name from which to load the
        # value of RootCAs.
        #File: path/to/RootCAs

    # SASLPlain: Settings for using SASL/PLAIN authentication with Kafka brokers
    SASLPlain:
      # Enabled: Use SASL/PLAIN to authenticate with Kafka brokers
      Enabled: false
      # User: Required when Enabled is set to true
      User:
      # Password: Required when Enabled is set to true
      Password:

    # Kafka protocol version used to communicate with the Kafka cluster brokers
    # (defaults to 0.10.2.0 if not specified)
    Version:

3.5 Debug部分

调试配置信息

Debug:

    # BroadcastTraceDir when set will cause each request to the Broadcast service
    # for this orderer to be written to a file in this directory
    BroadcastTraceDir:

    # DeliverTraceDir when set will cause each request to the Deliver service
    # for this orderer to be written to a file in this directory
    DeliverTraceDir:

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