fabric學習筆記---手動創建fabric測試網絡(轉)


原文見 深入理解Fabric環境搭建的詳細過程 http://www.cnblogs.com/studyzy/p/7451276.html 深藍居

1、生成cryptogen(密碼生成器)

我們將使用cryptogen工具為我們生成各種網絡實體的加密材料(x509證書)。這些證書是身份的代表,它們允許在我們的網絡實體進行交流和交易時進行簽名/驗證身份驗證。

Fabric中有兩種類型的公私鑰和證書,一種是給節點之前通訊安全而准備的TLS證書,另一種是用戶登錄和權限控制的用戶證書。這些證書本來應該是由CA來頒發,但是我們這里是測試環境,並沒有啟用CA節點,所以Fabric幫我們提供了一個工具:cryptogen。

cd  /root/go/src/github.com/hyperledger/fabric
make cryptogen

結果如下:

build/bin/cryptogen
CGO_CFLAGS=" " GOBIN=/root/go/src/github.com/hyperledger/fabric/build/bin go install -tags "" -ldflags "-X github.com/hyperledger/fabric/common/tools/cryptogen/metadata.Version=1.0.0" github.com/hyperledger/fabric/common/tools/cryptogen
Binary available as build/bin/cryptogen

即 在./build/bin/cryptogen下生成了可執行程序cryptogen

2、配置網絡拓撲 crypto-config.yaml

examples/e2e_cli/crypto-config.yaml已經提供了一個Orderer Org和兩個Peer Org的配置,該模板中也對字段進行了注釋。我們可以把Org2拿來分析一下:

- Name: Org2 
  Domain: org2.example.com 
  Template: 
    Count: 2 
  Users: 
    Count: 1

Name和Domain就是關於這個組織的名字和域名,這主要是用於生成證書的時候,證書內會包含該信息。而Template Count=2是說我們要生成2套公私鑰和證書,一套是peer0.org2的,還有一套是peer1.org2的。最后Users. Count=1是說每個Template下面會有幾個普通User(注意,Admin是Admin,不包含在這個計數中),這里配置了1,也就是說我們只需要一個普通用戶User1@org2.example.com 我們可以根據實際需要調整這個配置文件,增刪Org Users等。

3、使用加密生成器 cryptogen 根據網絡拓撲 crypto-config.yaml生成相應證書

cd examples/e2e_cli/
../../build/bin/cryptogen generate --config=./crypto-config.yaml

生成的文件都保存到crypto-config

root@ubuntu:~/go/src/github.com/hyperledger/fabric/examples/e2e_cli# tree crypto-config
crypto-config
├── ordererOrganizations
│   └── example.com
│       ├── ca
│       │   ├── 7f4a6ddd14cd63850d8efb5fac786754550e606b7066187f248e6d1195a14401_sk
│       │   └── ca.example.com-cert.pem
│       ├── msp
│       │   ├── admincerts
│       │   │   └── Admin@example.com-cert.pem
│       │   ├── cacerts
│       │   │   └── ca.example.com-cert.pem
│       │   └── tlscacerts
│       │       └── tlsca.example.com-cert.pem
│       ├── orderers
│       │   └── orderer.example.com
│       │       ├── msp
│       │       │   ├── admincerts
│       │       │   │   └── Admin@example.com-cert.pem
│       │       │   ├── cacerts
│       │       │   │   └── ca.example.com-cert.pem
│       │       │   ├── keystore
│       │       │   │   └── 61c8982b11f2c6038f3267b087ab3b2df189402b4d589f08373eef810b99196e_sk
│       │       │   ├── signcerts
│       │       │   │   └── orderer.example.com-cert.pem
│       │       │   └── tlscacerts
│       │       │       └── tlsca.example.com-cert.pem
│       │       └── tls
│       │           ├── ca.crt
│       │           ├── server.crt
│       │           └── server.key
│       ├── tlsca
│       │   ├── 75269ee7ffe06ce787e1fa84f0e13b6d806af2e3248cac26c215f05ceaa4cff5_sk
│       │   └── tlsca.example.com-cert.pem
│       └── users
│           └── Admin@example.com
│               ├── msp
│               │   ├── admincerts
│               │   │   └── Admin@example.com-cert.pem
│               │   ├── cacerts
│               │   │   └── ca.example.com-cert.pem
│               │   ├── keystore
│               │   │   └── d500892fdee19e1e5d533848b168232416fc9ff813e7472ac2978f38491f4093_sk
│               │   ├── signcerts
│               │   │   └── Admin@example.com-cert.pem
│               │   └── tlscacerts
│               │       └── tlsca.example.com-cert.pem
│               └── tls
│                   ├── ca.crt
│                   ├── server.crt
│                   └── server.key
└── peerOrganizations
    ├── org1.example.com
    │   ├── ca
    │   │   ├── 56c8383863e4c4571ec98d4191bdaa95f715ad0480728cb23ca3b4ee0d160960_sk
    │   │   └── ca.org1.example.com-cert.pem
    │   ├── msp
    │   │   ├── admincerts
    │   │   │   └── Admin@org1.example.com-cert.pem
    │   │   ├── cacerts
    │   │   │   └── ca.org1.example.com-cert.pem
    │   │   └── tlscacerts
    │   │       └── tlsca.org1.example.com-cert.pem
    │   ├── peers
    │   │   ├── peer0.org1.example.com
    │   │   │   ├── msp
    │   │   │   │   ├── admincerts
    │   │   │   │   │   └── Admin@org1.example.com-cert.pem
    │   │   │   │   ├── cacerts
    │   │   │   │   │   └── ca.org1.example.com-cert.pem
    │   │   │   │   ├── keystore
    │   │   │   │   │   └── 69ab0d05da63a094ff178579d6bfa7689ace565d707d4f0556b529e0ed3c865d_sk
    │   │   │   │   ├── signcerts
    │   │   │   │   │   └── peer0.org1.example.com-cert.pem
    │   │   │   │   └── tlscacerts
    │   │   │   │       └── tlsca.org1.example.com-cert.pem
    │   │   │   └── tls
    │   │   │       ├── ca.crt
    │   │   │       ├── server.crt
    │   │   │       └── server.key
    │   │   └── peer1.org1.example.com
    │   │       ├── msp
    │   │       │   ├── admincerts
    │   │       │   │   └── Admin@org1.example.com-cert.pem
    │   │       │   ├── cacerts
    │   │       │   │   └── ca.org1.example.com-cert.pem
    │   │       │   ├── keystore
    │   │       │   │   └── 795723f2c98428db01188afd1c68404824461295ea5412e7ea434c96a9b255cf_sk
    │   │       │   ├── signcerts
    │   │       │   │   └── peer1.org1.example.com-cert.pem
    │   │       │   └── tlscacerts
    │   │       │       └── tlsca.org1.example.com-cert.pem
    │   │       └── tls
    │   │           ├── ca.crt
    │   │           ├── server.crt
    │   │           └── server.key
    │   ├── tlsca
    │   │   ├── 12c9f413aa40d0da1bf9b333fbd2cf88281c57b0c4d6caf3c10bc93a32fe7067_sk
    │   │   └── tlsca.org1.example.com-cert.pem
    │   └── users
    │       ├── Admin@org1.example.com
    │       │   ├── msp
    │       │   │   ├── admincerts
    │       │   │   │   └── Admin@org1.example.com-cert.pem
    │       │   │   ├── cacerts
    │       │   │   │   └── ca.org1.example.com-cert.pem
    │       │   │   ├── keystore
    │       │   │   │   └── 6aa5f66155befc289a9a503b3acff7a4081925cd7f6b37be84ad06a03c5d03ea_sk
    │       │   │   ├── signcerts
    │       │   │   │   └── Admin@org1.example.com-cert.pem
    │       │   │   └── tlscacerts
    │       │   │       └── tlsca.org1.example.com-cert.pem
    │       │   └── tls
    │       │       ├── ca.crt
    │       │       ├── server.crt
    │       │       └── server.key
    │       └── User1@org1.example.com
    │           ├── msp
    │           │   ├── admincerts
    │           │   │   └── User1@org1.example.com-cert.pem
    │           │   ├── cacerts
    │           │   │   └── ca.org1.example.com-cert.pem
    │           │   ├── keystore
    │           │   │   └── f5ec31dffdd4eb3bfb24ed62749106155b40a2cdb8eef97b03a25aa5ba24edf4_sk
    │           │   ├── signcerts
    │           │   │   └── User1@org1.example.com-cert.pem
    │           │   └── tlscacerts
    │           │       └── tlsca.org1.example.com-cert.pem
    │           └── tls
    │               ├── ca.crt
    │               ├── server.crt
    │               └── server.key
    └── org2.example.com
        ├── ca
        │   ├── 979d49a2f3c80d0716ee151d155387b3070e7af533c27ded276be8b37843386c_sk
        │   └── ca.org2.example.com-cert.pem
        ├── msp
        │   ├── admincerts
        │   │   └── Admin@org2.example.com-cert.pem
        │   ├── cacerts
        │   │   └── ca.org2.example.com-cert.pem
        │   └── tlscacerts
        │       └── tlsca.org2.example.com-cert.pem
        ├── peers
        │   ├── peer0.org2.example.com
        │   │   ├── msp
        │   │   │   ├── admincerts
        │   │   │   │   └── Admin@org2.example.com-cert.pem
        │   │   │   ├── cacerts
        │   │   │   │   └── ca.org2.example.com-cert.pem
        │   │   │   ├── keystore
        │   │   │   │   └── eca432632ac8a57b094669d1a4ab93710fd59126f0f671ed4bdb07d1bbe94738_sk
        │   │   │   ├── signcerts
        │   │   │   │   └── peer0.org2.example.com-cert.pem
        │   │   │   └── tlscacerts
        │   │   │       └── tlsca.org2.example.com-cert.pem
        │   │   └── tls
        │   │       ├── ca.crt
        │   │       ├── server.crt
        │   │       └── server.key
        │   └── peer1.org2.example.com
        │       ├── msp
        │       │   ├── admincerts
        │       │   │   └── Admin@org2.example.com-cert.pem
        │       │   ├── cacerts
        │       │   │   └── ca.org2.example.com-cert.pem
        │       │   ├── keystore
        │       │   │   └── 609ab03ad06149a68d370b8f8ed45f8bef44cbac52ce7b39125129e33c5ffad5_sk
        │       │   ├── signcerts
        │       │   │   └── peer1.org2.example.com-cert.pem
        │       │   └── tlscacerts
        │       │       └── tlsca.org2.example.com-cert.pem
        │       └── tls
        │           ├── ca.crt
        │           ├── server.crt
        │           └── server.key
        ├── tlsca
        │   ├── 1fd065823b9b49550d484aa7312abbb8ef0f062cba9b7e349e94c11effbd2ef3_sk
        │   └── tlsca.org2.example.com-cert.pem
        └── users
            ├── Admin@org2.example.com
            │   ├── msp
            │   │   ├── admincerts
            │   │   │   └── Admin@org2.example.com-cert.pem
            │   │   ├── cacerts
            │   │   │   └── ca.org2.example.com-cert.pem
            │   │   ├── keystore
            │   │   │   └── 8096a721270a5f9e39a0272ee648bd6cb2b273fa8b5fac27eeda7cd4bd16da04_sk
            │   │   ├── signcerts
            │   │   │   └── Admin@org2.example.com-cert.pem
            │   │   └── tlscacerts
            │   │       └── tlsca.org2.example.com-cert.pem
            │   └── tls
            │       ├── ca.crt
            │       ├── server.crt
            │       └── server.key
            └── User1@org2.example.com
                ├── msp
                │   ├── admincerts
                │   │   └── User1@org2.example.com-cert.pem
                │   ├── cacerts
                │   │   └── ca.org2.example.com-cert.pem
                │   ├── keystore
                │   │   └── 59ff8e940b27192f1f782f3d22186202242413eabbfb192cf5b432488ef62612_sk
                │   ├── signcerts
                │   │   └── User1@org2.example.com-cert.pem
                │   └── tlscacerts
                │       └── tlsca.org2.example.com-cert.pem
                └── tls
                    ├── ca.crt
                    ├── server.crt
                    └── server.key

4、編譯生成 交易生成器configtxgen

cd ~/go/src/github.com/hyperledger/fabric

make configtxgen

運行后的結果為:

build/bin/configtxgen 
CGO_CFLAGS=" " GOBIN=/home/studyzy/go/src/github.com/hyperledger/fabric/build/bin go install -tags "nopkcs11" -ldflags "-X github.com/hyperledger/fabric/common/configtx/tool/configtxgen/metadata.Version=1.0.0" github.com/hyperledger/fabric/common/configtx/tool/configtxgen 
Binary available as build/bin/configtxgen

5、配置configtx.yaml

官方提供的examples/e2e_cli/configtx.yaml這個文件里面配置了由2個Org參與的Orderer共識配置TwoOrgsOrdererGenesis,以及由2個Org參與的Channel配置:TwoOrgsChannel。Orderer可以設置共識的算法是Solo還是Kafka,以及共識時區塊大小,超時時間等,我們使用默認值即可,不用更改。而Peer節點的配置包含了MSP的配置,錨節點的配置。如果我們有更多的Org,或者有更多的Channel,那么就可以根據模板進行對應的修改。

6、通過交易生成器configtxgen生成區塊

(1)生成創世區塊

配置修改好后,我們就用configtxgen 生成創世區塊。並把這個區塊保存到本地channel-artifacts文件夾中:

cd examples/e2e_cli/

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

(2)生成channel區塊

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

另外關於錨節點的更新,我們也需要使用這個程序來生成文件:

../../build/bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org1MSPanchors.tx -channelID mychannel -asOrg Org1MSP

../../build/bin/configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org2MSPanchors.tx -channelID mychannel -asOrg Org2MSP

最終,我們在channel-artifacts文件夾中,應該是能夠看到4個文件。

root@ubuntu:~/go/src/github.com/hyperledger/fabric/examples/e2e_cli# tree channel-artifacts/
channel-artifacts/
├── channel.tx
├── genesis.block
├── Org1MSPanchors.tx
└── Org2MSPanchors.tx

7、配置Fabric環境的docker-compose文件

(1)配置Orderer

Orderer的配置是在base/docker-compose-base.yaml里

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

這里主要關心的是,ORDERER_GENERAL_GENESISFILE=/var/hyperledger/orderer/orderer.genesis.block,而這個創世區塊就是我們之前創建的創世區塊,這里就是Host到Docker的映射:

- ../channel-artifacts/genesis.block:/var/hyperledger/orderer/orderer.genesis.block

另外的配置主要是TL,Log等,最后暴露出服務端口7050。、

(2)配置peer

Peer的配置是在base/docker-compose-base.yaml和peer-base.yaml里

docker-compose-base.yaml中截取peer0.org1.example.com配置

peer0.org1.example.com:
    container_name: peer0.org1.example.com
    extends:
      file: peer-base.yaml
      service: peer-base
    environment:
      - CORE_PEER_ID=peer0.org1.example.com
      - CORE_PEER_ADDRESS=peer0.org1.example.com:7051
      - CORE_PEER_CHAINCODELISTENADDRESS=peer0.org1.example.com:7052
      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=peer0.org1.example.com:7051
      - CORE_PEER_LOCALMSPID=Org1MSP
    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

peer-base.yaml

version: '2'
services:
  peer-base:
    image: hyperledger/fabric-peer
    environment:
      - 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=e2ecli_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

(3)配置CLI

CLI在整個Fabric網絡中扮演客戶端的角色,我們在開發測試的時候可以用CLI來代替SDK,執行各種SDK能執行的操作。CLI會和Peer相連,把指令發送給對應的Peer執行。CLI的配置在docker-compose-cli.yaml中

# Copyright IBM Corp. All Rights Reserved.
services:

  orderer.example.com:
    extends:
      file:   base/docker-compose-base.yaml
      service: orderer.example.com
    container_name: orderer.example.com

  peer0.org1.example.com:
    container_name: peer0.org1.example.com
    extends:
      file:  base/docker-compose-base.yaml
      service: peer0.org1.example.com

  peer1.org1.example.com:
    container_name: peer1.org1.example.com
    extends:
      file:  base/docker-compose-base.yaml
      service: peer1.org1.example.com

  peer0.org2.example.com:
    container_name: peer0.org2.example.com
    extends:
      file:  base/docker-compose-base.yaml
      service: peer0.org2.example.com

  peer1.org2.example.com:
    container_name: peer1.org2.example.com
    extends:
      file:  base/docker-compose-base.yaml
      service: peer1.org2.example.com

  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
    command: /bin/bash -c './scripts/script.sh ${CHANNEL_NAME}; sleep $TIMEOUT'
    volumes:
        - /var/run/:/host/var/run/
        - ../chaincode/go/:/opt/gopath/src/github.com/hyperledger/fabric/examples/chaincode/go
        - ./crypto-config:/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/
        - ./scripts:/opt/gopath/src/github.com/hyperledger/fabric/peer/scripts/
        - ./channel-artifacts:/opt/gopath/src/github.com/hyperledger/fabric/peer/channel-artifacts
    depends_on:
      - orderer.example.com
      - peer0.org1.example.com
      - peer1.org1.example.com
      - peer0.org2.example.com
      - peer1.org2.example.com

從這里我們可以看到,CLI啟動的時候默認連接的是peer0.org1.example.com,並且啟用了TLS。默認是以Admin@org1.example.com這個身份連接到Peer的。CLI啟動的時候,會去執行./scripts/script.sh 腳本,這個腳本也就是fabric/examples/e2e_cli/scripts/script.sh 這個腳本,這個腳本完成了Fabric環境的初始化和ChainCode的安裝及運行,也就是接下來要講的步驟4和5.在文件映射配置上,我們注意到../chaincode/go/:/opt/gopath/src/github.com/hyperledger/fabric/examples/chaincode/go,也就是說我們要安裝的ChainCode都是在fabric/examples/chaincode/go目錄下,以后我們要開發自己的ChainCode,只需要把我們的代碼復制到該目錄即可。

8、初始化fabric環境

(1)啟動Fabric環境的容器

我們將整個Fabric Docker環境的配置放在docker-compose-cli.yaml后,只需要使用以下命令即可:

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

最后這個-d參數如果不加,那么當前終端就會一直附加在docker-compose上,而如果加上的話,那么docker容器就在后台運行。運行docker ps命令可以看啟動的結果:1Orderer+4Peer+1CLI

CONTAINER ID        IMAGE                        COMMAND             CREATED             STATUS              PORTS                                                                       NAMES
e90ce174a429        hyperledger/fabric-tools     "/bin/bash"         25 seconds ago      Up 23 seconds                                                                                   cli
32ffc851c1bf        hyperledger/fabric-peer      "peer node start"   32 seconds ago      Up 25 seconds       0.0.0.0:9051->7051/tcp, 0.0.0.0:9052->7052/tcp, 0.0.0.0:9053->7053/tcp      peer0.org2.example.com
1f0d26e45634        hyperledger/fabric-peer      "peer node start"   32 seconds ago      Up 26 seconds       0.0.0.0:8051->7051/tcp, 0.0.0.0:8052->7052/tcp, 0.0.0.0:8053->7053/tcp      peer1.org1.example.com
807c4dc97684        hyperledger/fabric-orderer   "orderer"           32 seconds ago      Up 24 seconds       0.0.0.0:7050->7050/tcp                                                      orderer.example.com
c297c88cf9b3        hyperledger/fabric-peer      "peer node start"   32 seconds ago      Up 26 seconds       0.0.0.0:7051-7053->7051-7053/tcp                                            peer0.org1.example.com
08c95a2bbb12        hyperledger/fabric-peer      "peer node start"   32 seconds ago      Up 25 seconds       0.0.0.0:10051->7051/tcp, 0.0.0.0:10052->7052/tcp, 0.0.0.0:10053->7053/tcp   peer1.org2.example.com

(2)創建Channel

現在我們要進入cli容器內部,在里面創建Channel。先用以下命令進入CLI內部Bash:

docker exec -it cli bash

創建Channel的命令是peer channel create,我們前面創建2.4創建Channel的配置區塊時,指定了Channel的名字是mychannel,那么這里我們必須創建同樣名字的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/channel.tx --tls true --cafile $ORDERER_CA

執行該命令后,系統會提示:

2017-08-29 20:36:47.486 UTC [channelCmd] readBlock -> DEBU 020 Received block:0

系統會在cli內部的當前目錄創建一個mychannel.block文件,這個文件非常重要,接下來其他節點要加入這個Channel就必須使用這個文件。

(3)各個Peer加入Channel

前面說過,我們CLI默認連接的是peer0.org1,那么我們要將這個Peer加入mychannel就很簡單,只需要運行如下命令:

peer channel join -b mychannel.block

系統返回消息:

2017-08-29 20:40:27.053 UTC [channelCmd] executeJoin -> INFO 006 Peer joined the channel!

那么其他幾個Peer又該怎么加入Channel呢?這里就需要修改CLI的環境變量,使其指向另外的Peer。比如我們要把peer1.org1加入mychannel,那么命令是:

復制代碼
CORE_PEER_LOCALMSPID="Org1MSP" 
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 
CORE_PEER_ADDRESS=peer1.org1.example.com:7051

peer channel join -b mychannel.block
復制代碼

系統會返回成功加入Channel的消息。

同樣的方法,將peer0.org2加入mychannel:

復制代碼
CORE_PEER_LOCALMSPID="Org2MSP" 
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt 
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp 
CORE_PEER_ADDRESS=peer0.org2.example.com:7051

peer channel join -b mychannel.block
復制代碼

最后把peer1.org2加入mychannel:

復制代碼
CORE_PEER_LOCALMSPID="Org2MSP" 
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer1.org2.example.com/tls/ca.crt 
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp 
CORE_PEER_ADDRESS=peer1.org2.example.com:7051

peer channel join -b mychannel.block
復制代碼

(4)更新錨節點

關於AnchorPeer,我理解的不夠深刻,經過我的測試,即使沒有設置錨節點的情況下,整個Fabric網絡仍然是能正常運行的。

對於Org1來說,peer0.org1是錨節點,我們需要連接上它並更新錨節點:

復制代碼
CORE_PEER_LOCALMSPID="Org1MSP" 
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 
CORE_PEER_ADDRESS=peer0.org1.example.com:7051

peer channel update -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/Org1MSPanchors.tx --tls true --cafile $ORDERER_CA
復制代碼

另外對於Org2,peer0.org2是錨節點,對應的更新代碼是:

CORE_PEER_LOCALMSPID="Org2MSP" 
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt 
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp 
CORE_PEER_ADDRESS=peer0.org2.example.com:7051

peer channel update -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/Org2MSPanchors.tx --tls true --cafile $ORDERER_CA

以上,整個Fabric網絡和Channel都准備完畢,接下來我們來安裝和運行ChainCode。這里仍然以最出名的Example02為例。這個例子實現了a,b兩個賬戶,相互之間可以轉賬。

9、鏈上代碼的安裝與運行

(1)Install ChainCode安裝鏈上代碼

鏈上代碼的安裝需要在各個相關的Peer上進行,對於我們現在這種Fabric網絡,如果4個Peer都想對Example02進行操作,那么就需要安裝4次。

仍然是保持在CLI的命令行下,我們先切換到peer0.org1這個節點:

CORE_PEER_LOCALMSPID="Org1MSP" 
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 
CORE_PEER_ADDRESS=peer0.org1.example.com:7051

使用peer chaincode install命令可以安裝指定的ChainCode並對其命名:

peer chaincode install -n mycc -v 1.0 -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02

安裝的過程其實就是對CLI中指定的代碼進行編譯打包,並把打包好的文件發送到Peer,等待接下來的實例化。

其他節點由於暫時還沒使用到,我們可以先不安裝,等到了步驟5.4的時候再安裝。

(2)Instantiate ChainCode實例化鏈上代碼

實例化鏈上代碼主要是在Peer所在的機器上對前面安裝好的鏈上代碼進行包裝,生成對應Channel的Docker鏡像和Docker容器。並且在實例化時我們可以指定背書策略。我們運行以下命令完成實例化:

peer chaincode instantiate -o orderer.example.com:7050 --tls true --cafile $ORDERER_CA -C mychannel -n mycc -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P "OR      ('Org1MSP.member','Org2MSP.member')"

如果我們新開一個Ubuntu終端,去查看peer0.org1上的日志,那么就可以知道整個實例化的過程到底干了什么:

docker logs -f peer0.org1.example.com

主要幾行重要的日志:

復制代碼
2017-08-29 21:14:12.290 UTC [chaincode-platform] generateDockerfile -> DEBU 3fd 
FROM hyperledger/fabric-baseos:x86_64-0.3.1 
ADD binpackage.tar /usr/local/bin 
LABEL org.hyperledger.fabric.chaincode.id.name="mycc" \ 
       org.hyperledger.fabric.chaincode.id.version="1.0" \ 
      org.hyperledger.fabric.chaincode.type="GOLANG" \ 
      org.hyperledger.fabric.version="1.0.0" \ 
      org.hyperledger.fabric.base.version="0.3.1" 
ENV CORE_CHAINCODE_BUILDLEVEL=1.0.0 
ENV CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/fabric/peer.crt 
COPY peer.crt /etc/hyperledger/fabric/peer.crt 
2017-08-29 21:14:12.297 UTC [util] DockerBuild -> DEBU 3fe Attempting build with image hyperledger/fabric-ccenv:x86_64-1.0.0 
2017-08-29 21:14:48.907 UTC [dockercontroller] deployImage -> DEBU 3ff Created image: dev-peer0.org1.example.com-mycc-1.0 
2017-08-29 21:14:48.908 UTC [dockercontroller] Start -> DEBU 400 start-recreated image successfully 
2017-08-29 21:14:48.908 UTC [dockercontroller] createContainer -> DEBU 401 Create container: dev-peer0.org1.example.com-mycc-1.0
復制代碼

接下來的日志就是各種初始化,驗證,寫賬本之類的。總之完畢后,我們回到Ubuntu終端,使用docker ps可以看到有新的容器正在運行:

CONTAINER ID        IMAGE                                 COMMAND                  CREATED             STATUS              PORTS                                                                       NAMES
fc620b8c6399        dev-peer0.org1.example.com-mycc-1.0   "chaincode -peer.add…"   3 minutes ago       Up 2 minutes                                                                                    dev-peer0.org1.example.com-mycc-1.0
e90ce174a429        hyperledger/fabric-tools              "/bin/bash"              31 minutes ago      Up 30 minutes                                                                                   cli
32ffc851c1bf        hyperledger/fabric-peer               "peer node start"        31 minutes ago      Up 31 minutes       0.0.0.0:9051->7051/tcp, 0.0.0.0:9052->7052/tcp, 0.0.0.0:9053->7053/tcp      peer0.org2.example.com
1f0d26e45634        hyperledger/fabric-peer               "peer node start"        31 minutes ago      Up 31 minutes       0.0.0.0:8051->7051/tcp, 0.0.0.0:8052->7052/tcp, 0.0.0.0:8053->7053/tcp      peer1.org1.example.com
807c4dc97684        hyperledger/fabric-orderer            "orderer"                31 minutes ago      Up 31 minutes       0.0.0.0:7050->7050/tcp                                                      orderer.example.com
c297c88cf9b3        hyperledger/fabric-peer               "peer node start"        31 minutes ago      Up 31 minutes       0.0.0.0:7051-7053->7051-7053/tcp                                            peer0.org1.example.com
08c95a2bbb12        hyperledger/fabric-peer               "peer node start"        31 minutes ago      Up 31 minutes       0.0.0.0:10051->7051/tcp, 0.0.0.0:10052->7052/tcp, 0.0.0.0:10053->7053/tcp   peer1.org2.example.com

 

(3)在一個Peer上查詢並發起交易

現在鏈上代碼的實例也有了,並且在實例化的時候指定了a賬戶100,b賬戶200,我們可以試着調用ChainCode的查詢代碼,驗證一下,在cli容器內執行:

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

返回結果:Query Result: 100

接下來我們可以試着把a賬戶的10元轉給b。對應的代碼:

peer chaincode invoke -o orderer.example.com:7050  --tls true --cafile $ORDERER_CA -C mychannel -n mycc -c '{"Args":["invoke","a","b","10"]}'

(4)在另一個節點上查詢交易

前面的操作都是在org1下面做的,那么處於同一個區塊鏈(同一個Channel下)的org2,是否會看org1的更改呢?我們試着給peer0.org2安裝鏈上代碼:

復制代碼
CORE_PEER_LOCALMSPID="Org2MSP" 
CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt 
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp 
CORE_PEER_ADDRESS=peer0.org2.example.com:7051

peer chaincode install -n mycc -v 1.0 -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02
復制代碼

由於mycc已經在前面org1的時候實例化了,也就是說對應的區塊已經生成了,所以在org2不能再次初始化。我們直接運行查詢命令:

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

返回結果:

Query Result: 90

這是因為peer0.org2也需要生成Docker鏡像,創建對應的容器,才能通過容器返回結果。我們回到Ubuntu終端,執行docker ps,可以看到又多了一個容器:

CONTAINER ID        IMAGE                                 COMMAND                  CREATED              STATUS              PORTS                                                                       NAMES
1dde91b29472        dev-peer0.org2.example.com-mycc-1.0   "chaincode -peer.add…"   About a minute ago   Up About a minute                                                                               dev-peer0.org2.example.com-mycc-1.0
fc620b8c6399        dev-peer0.org1.example.com-mycc-1.0   "chaincode -peer.add…"   11 minutes ago       Up 11 minutes                                                                                   dev-peer0.org1.example.com-mycc-1.0
e90ce174a429        hyperledger/fabric-tools              "/bin/bash"              39 minutes ago       Up 39 minutes                                                                                   cli
32ffc851c1bf        hyperledger/fabric-peer               "peer node start"        39 minutes ago       Up 39 minutes       0.0.0.0:9051->7051/tcp, 0.0.0.0:9052->7052/tcp, 0.0.0.0:9053->7053/tcp      peer0.org2.example.com
1f0d26e45634        hyperledger/fabric-peer               "peer node start"        39 minutes ago       Up 39 minutes       0.0.0.0:8051->7051/tcp, 0.0.0.0:8052->7052/tcp, 0.0.0.0:8053->7053/tcp      peer1.org1.example.com
807c4dc97684        hyperledger/fabric-orderer            "orderer"                39 minutes ago       Up 39 minutes       0.0.0.0:7050->7050/tcp                                                      orderer.example.com
c297c88cf9b3        hyperledger/fabric-peer               "peer node start"        39 minutes ago       Up 39 minutes       0.0.0.0:7051-7053->7051-7053/tcp                                            peer0.org1.example.com
08c95a2bbb12        hyperledger/fabric-peer               "peer node start"        39 minutes ago       Up 39 minutes       0.0.0.0:10051->7051/tcp, 0.0.0.0:10052->7052/tcp, 0.0.0.0:10053->7053/tcp   peer1.org2.example.com

 


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