HyperLedger Fabric 1.4 智能合約 Helloworld運行（9）

時間 2019-12-14

標籤 hyperledger fabric 1.4 智能合約 helloworld 運行简体版

原文原文鏈接

9.1 Helloworld案例簡介
經過執行官方End-2-End案例，初始瞭解Fabric網絡的運行流程及yaml配置，官方End-2-End案例把執行過程集成，經過一條命令便可完成所有操做，對於初學者只能瞭解Fabric網絡搭建是否成功，對於Fabric網絡的執行細節仍是迷惑。
爲了能讓初學者全面瞭解Fabric網絡的執行細節，本章經過手動方式搭建一個orderer、一個組織和一個peer的SOLO排序的Fabric網絡，把配置獨立出來，造成orderer和peer配置等單個yaml文件，經過手動執行orderer和peer搭建Fabric網絡。
編寫最簡單的智能合約，初始化時在區塊中存儲Hello world字符串，而後經過智能合約能夠查詢出Hello world字符串，初步瞭解智能合約編寫。
9.2 Helloworld鏈碼編寫
Helloworld鏈碼實現Init和Invoke兩個接口，經過stub.PutState和stub.GetState保存和獲取鏈值對數據。node

Init(stub shim.ChaincodeStubInterface)：用於智能合約初始化及升級初始化,實現初始化時保存鏈值對；
Invoke(stub shim.ChaincodeStubInterface)：是節點（peer）調用鏈碼的入口函數，實現對帳本進行保存和獲取鏈值對；

　　實現兩個文件,分別chaincode.go和cmd/ main.go，main.go是主入口函數　　linux

具體代碼以下：git

main.go:

/*
 * 
 * 文件名稱 : main.go 
 * 建立者 : linwf
 * 建立日期: 2018/08/23 
 * 文件描述: 主入口函數
 * 歷史記錄: 無 
 */

package main

import (
    "fmt"

    "github.com/hyperledger/fabric/core/chaincode/shim"
    "github.com/hyperledger/fabric/helloworld/chaincode/go/helloworld"
)

func main() {
    err := shim.Start(new(helloworld.SimpleChaincode))
    if err != nil {
        fmt.Printf("Error starting Simple chaincode: %s", err)
    }
}

chaincode.go

/*
 * 
 * 文件名稱 : chaincode.go 
 * 建立者 : linwf
 * 建立日期: 2018/08/23 
 * 文件描述: 實現存儲Helloworld字符串的智能合約
 * 歷史記錄: 無 
 */

package helloworld

import (
	"fmt"

	"github.com/hyperledger/fabric/core/chaincode/shim"
	pb "github.com/hyperledger/fabric/protos/peer"
)

// SimpleChaincode implements a simple chaincode to manage an asset
type SimpleChaincode struct {
}

// 鏈碼實例化時，調用Init函數初始化數據
// 鏈碼升級時，也會調用此函數重置或遷移數據
func (t *SimpleChaincode) Init(stub shim.ChaincodeStubInterface) pb.Response {
	// 獲取交易提案中的參數
	args := stub.GetStringArgs()
	if len(args) != 2 {
		return shim.Error("Incorrect arguments. Expecting a key and a value")
	}

	// 經過調用stub.PutState()設置變量和數值

	// 在帳本上設置key和value
	err := stub.PutState(args[0], []byte(args[1]))
	if err != nil {
		return shim.Error(fmt.Sprintf("Failed to create asset: %s", args[0]))
	}
	return shim.Success(nil)
}

// 調用Invoke函數進行資產交易
// 每筆交易經過get或set操做Init函數建立的key和value
// 經過set能夠建立新的key和value
func (t *SimpleChaincode) Invoke(stub shim.ChaincodeStubInterface) pb.Response {
	// 獲取交易提案中的函數和參數
	fn, args := stub.GetFunctionAndParameters()

	var result string
	var err error
	if fn == "set" {
		result, err = set(stub, args)
	} else { // assume 'get' even if fn is nil
		result, err = get(stub, args)
	}
	if err != nil {
		return shim.Error(err.Error())
	}

	// Return the result as success payload
	return shim.Success([]byte(result))
}

// 保存key和value到帳本上
// 若是key存在，覆蓋原有的value
func set(stub shim.ChaincodeStubInterface, args []string) (string, error) {
	if len(args) != 2 {
		return "", fmt.Errorf("Incorrect arguments. Expecting a key and a value")
	}

	err := stub.PutState(args[0], []byte(args[1]))
	if err != nil {
		return "", fmt.Errorf("Failed to set asset: %s", args[0])
	}
	return args[1], nil
}

// 獲取key對應的value
func get(stub shim.ChaincodeStubInterface, args []string) (string, error) {
	if len(args) != 1 {
		return "", fmt.Errorf("Incorrect arguments. Expecting a key")
	}

	value, err := stub.GetState(args[0])
	if err != nil {
		return "", fmt.Errorf("Failed to get asset: %s with error: %s", args[0], err)
	}
	if value == nil {
		return "", fmt.Errorf("Asset not found: %s", args[0])
	}
	return string(value), nil
}

9.3 Helloworld案例運行
9.3.1 建立helloworld目錄github

# cd $GOPATH/src/github.com/hyperledger/fabric
# mkdir helloworld
# cd helloworld

9.3.2 獲取「cryptogen」和「configtxgen」工具
訪問網址：https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric/hyperledger-fabric/linux-amd64-1.2.0/，下載「cryptogen」和「configtxgen」等工具的二進制文件包hyperledger-fabric-linux-amd64-1.2.0.tar.gz，解壓後把bin目錄拷貝到helloworld目錄下。Bin目錄下的文件以下圖所示：docker

圖：bin目錄文件bash

# chmod -R 777 ./bin

9.3.3 準備生成證書和區塊配置文件網絡

配置crypto-config.yaml和configtx.yaml文件，拷貝到helloworld目錄下。app

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: 1
      # Start: 5
      # Hostname: {{.Prefix}}{{.Index}} # default
    # ---------------------------------------------------------------------------
    # "Users"
    # ---------------------------------------------------------------------------
    # Count: The number of user accounts _in addition_ to Admin
    # ---------------------------------------------------------------------------
    Users:
      Count: 1

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/<Application|Orderer>/<OrgName>/<PolicyName>
        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/<Application|Orderer>/<OrgName>/<PolicyName>
        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

################################################################################
#
#   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/<PolicyName>
    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/<PolicyName>
    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/<PolicyName>
    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:

    OneOrgsOrdererGenesis:
        <<: *ChannelDefaults
        Orderer:
            <<: *OrdererDefaults
            Organizations:
                - *OrdererOrg
        Consortiums:
            SampleConsortium:
                Organizations:
                    - *Org1
    OneOrgsChannel:
        Consortium: SampleConsortium
        Application:
            <<: *ApplicationDefaults
            Organizations:
                - *Org1

9.3.4 生成公私鑰和證書dom

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

9.3.5 生成創世區塊ide

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

9.3.6 生成通道（Channel）配置區塊

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

9.3.7 準備docker配置文件
配置docker-orderer.yaml和 docker-peer.yaml文件，拷貝到helloworld目錄下。

docker-orderer.yaml：

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]
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

    docker-peer.yaml：
version: '2'

services:

peer0.org1.example.com:
container_name: peer0.org1.example.com
image: hyperledger/fabric-peer
environment:
- 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=helloworld_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
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
working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
command: peer node start
ports:
- 7051:7051
- 7052:7052
- 7053:7053
extra_hosts:
- "orderer.example.com:192.168.235.131"

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/Admin@org1.example.com/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/helloworld/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:192.168.235.131"

docker-peer.yaml：

version: '2'

services:

  peer0.org1.example.com:
    container_name: peer0.org1.example.com
    image: hyperledger/fabric-peer
    environment:
      - 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=helloworld_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
    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
    working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
    command: peer node start
    ports:
      - 7051:7051
      - 7052:7052
      - 7053:7053
    extra_hosts:
      - "orderer.example.com:192.168.235.131"

  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/Admin@org1.example.com/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/helloworld/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:192.168.235.131"

9.3.8 準備部署智能合約
拷貝編寫好的智能合約文件到helloworld/ chaincode/go/helloworld目錄下。

9.3.9 啓動Fabric網絡
1）啓動orderer

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

2）啓動peer

# docker-compose -f docker-peer.yaml up -d

3）啓動cli容器

# docker exec -it cli bash

4）建立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

5） Peer加入Channel

# peer channel join -b mychannel.block

9.3.10 安裝與運行智能合約
1）安裝智能合約

# peer chaincode install -n mycc -p github.com/hyperledger/fabric/helloworld/chaincode/go/helloworld/cmd -v 1.0

2）實例化智能合約

# peer chaincode instantiate -o orderer.example.com:7050 --tls --cafile $ORDERER_CA -C mychannel -n mycc -v 1.0 -c '{"Args":["a","helloworld"]}' -P "OR ('Org1MSP.peer')"

3） Peer上查詢A，顯示Helloworld

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

完成後顯示以下圖所示：

圖：Helloworld完成圖

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