更改状态数据库（CouchDB）（完整版）

状态数据库（CouchDB）

方案：
solo模式创建多机多节点测试环境

192.168.111.139	order
192.168.111.131	peer0.org1
192.168.111.132	peer1.org1

准备：

停止docker进程

docker stop $(docker ps -a -q)

删除docker进程

docker rm $(docker ps -a -q)

一、部署orderer.example.com
服务器（192.168.111.139）
1. 创建couchdbpeer目录

cd $GOPATH/src/github.com/hyperledger/fabric/
mkdir couchdbpeer/
cd couchdbpeer/

2. 获取生成工具

把下载的hyperledger-fabric-linux-amd64-1.2.0.tar.gz二进制文件包解压，把其中的bin目录拷贝到multipeer目录下，并给其赋权限。
tar -zxvf hyperledger-fabric-linux-amd64-1.2.0.tar.gz
cp -r ../bin/ ./fabric/couchdbpeer/
chmod -R 777 ./bin

3. 准备生成证书和区块配置文件
配置crypto-config.yaml和configtx.yaml文件，拷贝到couchdbpeer目录下。
配置文件
configtx.yaml

   Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
#

---
################################################################################
#
#   Section: Organizations
#
#   - This section defines the different organizational identities which will
#   be referenced later in the configuration.
#
################################################################################
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')"

        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: 7051

################################################################################
#
#   SECTION: Capabilities
#
#   - This section defines the capabilities of fabric network. This is a new
#   concept as of v1.1.0 and should not be utilized in mixed networks with
#   v1.0.x peers and orderers.  Capabilities define features which must be
#   present in a fabric binary for that binary to safely participate in the
#   fabric network.  For instance, if a new MSP type is added, newer binaries
#   might recognize and validate the signatures from this type, while older
#   binaries without this support would be unable to validate those
#   transactions.  This could lead to different versions of the fabric binaries
#   having different world states.  Instead, defining a capability for a channel
#   informs those binaries without this capability that they must cease
#   processing transactions until they have been upgraded.  For v1.0.x if any
#   capabilities are defined (including a map with all capabilities turned off)
#   then the v1.0.x peer will deliberately crash.
#
################################################################################
Capabilities:
    # Channel capabilities apply to both the orderers and the peers and must be
    # supported by both.  Set the value of the capability to true to require it.
    Global: &ChannelCapabilities
        # V1.1 for Global is a catchall flag for behavior which has been
        # determined to be desired for all orderers and peers running v1.0.x,
        # but the modification of which would cause incompatibilities.  Users
        # should leave this flag set to true.
        V1_1: true

    # Orderer capabilities apply only to the orderers, and may be safely
    # manipulated without concern for upgrading peers.  Set the value of the
    # capability to true to require it.
    Orderer: &OrdererCapabilities
        # V1.1 for Order is a catchall flag for behavior which has been
        # determined to be desired for all orderers running v1.0.x, but the
        # modification of which  would cause incompatibilities.  Users should
        # leave this flag set to true.
        V1_1: true

    # Application capabilities apply only to the peer network, and may be safely
    # manipulated without concern for upgrading orderers.  Set the value of the
    # capability to true to require it.
    Application: &ApplicationCapabilities
        # V1.1 for Application is a catchall flag for behavior which has been
        # determined to be desired for all peers running v1.0.x, but the
        # modification of which would cause incompatibilities.  Users should
        # leave this flag set to true.
        V1_2: true

################################################################################
#
#   SECTION: Application
#
#   - This section defines the values to encode into a config transaction or
#   genesis block for application related parameters
#
################################################################################
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 describes the application level capabilities, see the
    # dedicated Capabilities section elsewhere in this file for a full
    # description
    Capabilities:
        <<: *ApplicationCapabilities

################################################################################
#
#   SECTION: Orderer
#
#   - This section defines the values to encode into a config transaction or
#   genesis block for orderer related parameters
#
################################################################################
Orderer: &OrdererDefaults

    # Orderer Type: The orderer implementation to start
    # Available types are "solo" and "kafka"
    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: 98 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. Edit
        # this list to identify the brokers of the ordering service.
        # NOTE: Use IP:port notation.
        Brokers:
            - 127.0.0.1:9092

    # 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"

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

################################################################################
#
#   CHANNEL
#
#   This section defines the values to encode into a config transaction or
#   genesis block for channel related parameters.
#
################################################################################
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

################################################################################
#
#   Profile
#
#   - Different configuration profiles may be encoded here to be specified
#   as parameters to the configtxgen tool
#
################################################################################
Profiles:

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

crypto-config.yaml

# Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
#

# ---------------------------------------------------------------------------
# "OrdererOrgs" - Definition of organizations managing orderer nodes
# ---------------------------------------------------------------------------
OrdererOrgs:
  # ---------------------------------------------------------------------------
  # Orderer
  # ---------------------------------------------------------------------------
  - Name: Orderer
    Domain: example.com
    CA:
        Country: US
        Province: California
        Locality: San Francisco
    # ---------------------------------------------------------------------------
    # "Specs" - See PeerOrgs below for complete description
    # ---------------------------------------------------------------------------
    Specs:
      - Hostname: orderer
# ---------------------------------------------------------------------------
# "PeerOrgs" - Definition of organizations managing peer nodes
# ---------------------------------------------------------------------------
PeerOrgs:
  # ---------------------------------------------------------------------------
  # Org1
  # ---------------------------------------------------------------------------
  - Name: Org1
    Domain: org1.example.com
    EnableNodeOUs: true
    CA:
        Country: US
        Province: California
        Locality: San Francisco
    # ---------------------------------------------------------------------------
    # "Specs"
    # ---------------------------------------------------------------------------
    # Uncomment this section to enable the explicit definition of hosts in your
    # configuration.  Most users will want to use Template, below
    #
    # Specs is an array of Spec entries.  Each Spec entry consists of two fields:
    #   - Hostname:   (Required) The desired hostname, sans the domain.
    #   - CommonName: (Optional) Specifies the template or explicit override for
    #                 the CN.  By default, this is the template:
    #
    #                              "{{.Hostname}}.{{.Domain}}"
    #
    #                 which obtains its values from the Spec.Hostname and
    #                 Org.Domain, respectively.
    # ---------------------------------------------------------------------------
    # Specs:
    #   - Hostname: foo # implicitly "foo.org1.example.com"
    #     CommonName: foo27.org5.example.com # overrides Hostname-based FQDN set above
    #   - Hostname: bar
    #   - Hostname: baz
    # ---------------------------------------------------------------------------
    # "Template"
    # ---------------------------------------------------------------------------
    # Allows for the definition of 1 or more hosts that are created sequentially
    # from a template. By default, this looks like "peer%d" from 0 to Count-1.
    # You may override the number of nodes (Count), the starting index (Start)
    # or the template used to construct the name (Hostname).
    #
    # Note: Template and Specs are not mutually exclusive.  You may define both
    # sections and the aggregate nodes will be created for you.  Take care with
    # name collisions
    # ---------------------------------------------------------------------------
    Template:
      Count: 2
      # Start: 5
      # Hostname: {{.Prefix}}{{.Index}} # default
    # ---------------------------------------------------------------------------
    # "Users"
    # ---------------------------------------------------------------------------
    # Count: The number of user accounts _in addition_ to Admin
    # ---------------------------------------------------------------------------
    Users:
      Count: 1
  # ---------------------------------------------------------------------------
  # Org2: See "Org1" for full specification
  # ---------------------------------------------------------------------------
  - Name: Org2
    Domain: org2.example.com
    EnableNodeOUs: true
    CA:
        Country: US
        Province: California
        Locality: San Francisco
    Template:
      Count: 2
    Users:
      Count: 1

4. 生成公私钥和证书

 ./bin/cryptogen generate --config=./crypto-config.yaml

5. 生成创世区块

mkdir channel-artifacts
./bin/configtxgen -profile TwoOrgsOrdererGenesis -outputBlock ./channel-artifacts/genesis.block

6. 生成通道配置区块

./bin/configtxgen -profile TwoOrgsChannel -outputCreateChannelTx ./channel-artifacts/mychannel.tx -channelID mychannel

7. 拷贝生成文件到其它电脑

cd ../
scp -r couchdbpeer [email protected]:/opt/gopath/src/github.com/hyperledger/fabric

8.准备docker配置文件
docker-compose-orderer.yaml

# Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
#

version: '2'

services:

  orderer.example.com:
    container_name: orderer.example.com
    image: hyperledger/fabric-orderer
    environment:
      - ORDERER_GENERAL_LOGLEVEL=debug
      - ORDERER_GENERAL_LISTENADDRESS=0.0.0.0
      - ORDERER_GENERAL_GENESISMETHOD=file
      - ORDERER_GENERAL_GENESISFILE=/var/hyperledger/orderer/orderer.genesis.block
      - ORDERER_GENERAL_LOCALMSPID=OrdererMSP
      - ORDERER_GENERAL_LOCALMSPDIR=/var/hyperledger/orderer/msp
      # enabled TLS
      - ORDERER_GENERAL_TLS_ENABLED=true
      - ORDERER_GENERAL_TLS_PRIVATEKEY=/var/hyperledger/orderer/tls/server.key
      - ORDERER_GENERAL_TLS_CERTIFICATE=/var/hyperledger/orderer/tls/server.crt
      - ORDERER_GENERAL_TLS_ROOTCAS=[/var/hyperledger/orderer/tls/ca.crt]
      - ORDERER_KAFKA_RETRY_SHORTINTERVAL=1s
      - ORDERER_KAFKA_RETRY_SHORTTOTAL=30s
      - ORDERER_KAFKA_VERBOSE=true
    working_dir: /opt/gopath/src/github.com/hyperledger/fabric
    command: orderer
    volumes:
      - ./channel-artifacts/genesis.block:/var/hyperledger/orderer/orderer.genesis.block
      - ./crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/msp:/var/hyperledger/orderer/msp
      - ./crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/:/var/hyperledger/orderer/tls
    ports:
      - 7050:7050

9. 启动Fabric网络

docker-compose -f docker-compose-orderer.yaml up -d

二、部署peer0.org1.example.com
1. 准备docker配置文件
配置docker-compose-peer.yaml文件，拷贝到couchdbpeer目录下。
服务器（192.168.111.131）
docker-compose-peer.yaml

# Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
#

version: '2'

services:
  couchdb:
    container_name: couchdb
    image: hyperledger/fabric-couchdb
    environment:
      - COUCHDB_USER=admin
      - COUCHDB_PASSWORD=123456
    # Comment/Uncomment the port mapping if you want to hide/expose the CouchDB service,
    # for example map it to utilize Fauxton User Interface in dev environments.
    ports:
      - "5984:5984"

  peer0.org1.example.com:
    container_name: peer0.org1.example.com
    image: hyperledger/fabric-peer
    environment:
      - CORE_LEDGER_STATE_STATEDATABASE=CouchDB
      - CORE_LEDGER_STATE_COUCHDBCONFIG_COUCHDBADDRESS=couchdb:5984
      - CORE_LEDGER_STATE_COUCHDBCONFIG_USERNAME=admin
      - CORE_LEDGER_STATE_COUCHDBCONFIG_PASSWORD=123456

      - CORE_PEER_ID=peer0.org1.example.com
      - CORE_PEER_ADDRESS=peer0.org1.example.com:7051
      - CORE_PEER_CHAINCODEADDRESS=peer0.org1.example.com:7052
      - CORE_PEER_CHAINCODELISTENADDRESS=0.0.0.0:7052
      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=peer0.org1.example.com:7051
      - CORE_PEER_LOCALMSPID=Org1MSP

      - CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock
      # the following setting starts chaincode containers on the same
      # bridge network as the peers
      # https://docs.docker.com/compose/networking/
      - CORE_VM_DOCKER_HOSTCONFIG_NETWORKMODE=couchdbpeer_default
      #- CORE_LOGGING_LEVEL=ERROR
      - CORE_LOGGING_LEVEL=DEBUG
      - CORE_PEER_TLS_ENABLED=true
      - CORE_PEER_GOSSIP_USELEADERELECTION=true
      - CORE_PEER_GOSSIP_ORGLEADER=false
      - CORE_PEER_PROFILE_ENABLED=true
      - CORE_PEER_TLS_CERT_FILE=/etc/hyperledger/fabric/tls/server.crt
      - CORE_PEER_TLS_KEY_FILE=/etc/hyperledger/fabric/tls/server.key
      - CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/fabric/tls/ca.crt
    working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
    command: peer node start
    volumes:
        - /var/run/:/host/var/run/
        - ./crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/msp:/etc/hyperledger/fabric/msp
        - ./crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls:/etc/hyperledger/fabric/tls
    ports:
      - 7051:7051
      - 7052:7052
      - 7053:7053
    depends_on:
      - couchdb
    extra_hosts:
      - "orderer.example.com:192.168.111.139"

  cli:
    container_name: cli
    image: hyperledger/fabric-tools
    tty: true
    environment:
      - GOPATH=/opt/gopath
      - CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock
      - CORE_LOGGING_LEVEL=DEBUG
      - CORE_PEER_ID=cli
      - CORE_PEER_ADDRESS=peer0.org1.example.com:7051
      - CORE_PEER_LOCALMSPID=Org1MSP
      - CORE_PEER_TLS_ENABLED=true
      - CORE_PEER_TLS_CERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/server.crt
      - CORE_PEER_TLS_KEY_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/server.key
      - CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt
      - CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/[email protected]/msp
    working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
    volumes:
        - /var/run/:/host/var/run/
        - ./chaincode/go/:/opt/gopath/src/github.com/hyperledger/fabric/couchdbpeer/chaincode/go
        - ./crypto-config:/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/
        - ./channel-artifacts:/opt/gopath/src/github.com/hyperledger/fabric/peer/channel-artifacts
    depends_on:
       - peer0.org1.example.com
    extra_hosts: 
       - "orderer.example.com:192.168.111.139" 
       - "peer0.org1.example.com:192.168.111.131" 
       - "peer1.org1.example.com:192.168.111.132" 
       - "peer0.org2.example.com:192.168.111.140" 
       - "peer1.org2.example.com:192.168.111.141"

2. 启动Fabric网络
1) 启动peer

cd $GOPATH/src/github.com/hyperledger/fabric/couchdbpeer
docker-compose -f docker-compose-peer.yaml up -d

2) 启动cli容器

docker exec -it cli bash

3) 创建Channel

ORDERER_CA=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem
peer channel create -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/mychannel.tx --tls --cafile $ORDERER_CA

4) Peer加入Channel

peer channel join -b mychannel.block

5) 保存mychannel.block
命令的xxxxxxxx替换为图中红框中的字符。

图：cli客户端

exit
docker cp xxxxxxxx:/opt/gopath/src/github.com/hyperledger/fabric/peer/mychannel.block /opt/gopath/src/github.com/hyperledger/fabric/couchdbpeer

6) mychannel.block拷贝到其他peer节点

scp mychannel.block [email protected]:/opt/gopath/src/github.com/hyperledger/fabric/couchdbpeer
scp mychannel.block [email protected]:/opt/gopath/src/github.com/hyperledger/fabric/couchdbpeer

3. 准备部署智能合约
拷贝examples/chaincode/go/example02目录下的文件到couchdbpeer/chaincode/go/example02目录下。
4. 安装与运行智能合约
1） 安装智能合约

docker exec -it cli bash
peer chaincode install -n mycc -p github.com/hyperledger/fabric/couchdbpeer/chaincode/go/example02/cmd/ -v 1.0

2） 实例化智能合约
区块初始化数据为a为100，b为200。

ORDERER_CA=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem
    peer chaincode instantiate -o orderer.example.com:7050 --tls --cafile $ORDERER_CA -C mychannel -n mycc -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P "OR ('Org1MSP.peer','Org2MSP.peer')"

3） Peer上查询a

peer chaincode query -C mychannel -n mycc -c '{"Args":["query","a"]}'

4） Peer上进行a向b转10交易

peer chaincode invoke --tls --cafile $ORDERER_CA -C mychannel -n mycc -c '{"Args":["invoke","a","b","10"]}'

5） Peer上查询a

peer chaincode query -C mychannel -n mycc -c '{"Args":["query","b"]}'

总结：
加入couchdb，只需要再peer节点的配置文件里上加入couchdb服务，在peer节点的配置中加入couchdb的配置，如下图所示：


参考：
实例参考博客园博主灵龙的多机多节点配置实例
https://www.cnblogs.com/llongst/p/9571363.html