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王伟兵 edited this page Jan 2, 2018 · 51 revisions

Composer中文文档移到了这里

笔记

安装开发环境

安装开发环境

在~/fabric-tools目录下下载了一些脚本和其他文件。其中，createPeerAdminCard.sh用于为peer管理员创建一个业务网络卡片。下面是这个脚本中创建PeerAdmin业务网络卡片的逻辑：

cat << EOF > /tmp/.connection.json
{
    "name": "hlfv1",
    "type": "hlfv1",
    "orderers": [
       { "url" : "grpc://localhost:7050" }
    ],
    "ca": { "url": "http://localhost:7054", "name": "ca.org1.example.com"},
    "peers": [
        {
            "requestURL": "grpc://localhost:7051",
            "eventURL": "grpc://localhost:7053"
        }
    ],
    "channel": "composerchannel",
    "mspID": "Org1MSP",
    "timeout": 300
}
EOF

PRIVATE_KEY="${DIR}"/composer/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/keystore/114aab0e76bf0c78308f89efc4b8c9423e31568da0c340ca187a9b17aa9a4457_sk
CERT="${DIR}"/composer/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/signcerts/[email protected]

composer card create -p /tmp/.connection.json -u PeerAdmin -c "${CERT}" -k "${PRIVATE_KEY}" -r PeerAdmin -r ChannelAdmin --file /tmp/[email protected]
composer card import --file /tmp/[email protected]

这个脚本，创建了连接配置文件connection.json，用定位了Fabric组织管理员[email protected]证书和私钥，利用公私钥创建了一个网页网络卡片[email protected]，并导入到网络中。

为单个组织部署Hyperledger Composer区块链网络到Hyperledger Fabric

为单个组织部署Hyperledger Composer区块链网络到Hyperledger Fabric

使用[email protected](组织管理员)来创建业务网络卡片，创建了文件[email protected]，并导入Composer钱包。
安装Composer运行时：

composer runtime install -c PeerAdmin@fabric-network -n tutorial-network

业务网络名称tutorial-network在安装运行时指定，后面会引用。
可以尝试创建tutorial-network2。如果以-n tutorial-network2的方式安装Composer运行时，可以成功。但之后如何启动网络时，如果.bna档案中定义的业务网络名称不是tutorial-network2会报错。
启动业务网络：

composer network start -c PeerAdmin@fabric-network -a tutorial-network.bna -A admin -S adminpw

-A和-S参数引起了文件[email protected]的创建，这是业务网络管理员。
导入业务网络管理员卡片：

composer card import -f [email protected]

部署Hyperledger Composer网络到多组织Fabric

部署Hyperledger Composer网络到多组织Fabric

安装Composer运行时后，导出的业务网络管理员（而不是单组织的在启动业务网络时生成）：

composer identity request -c PeerAdmin@byfn-network-org1-only -u admin -s adminpw -d alice

然后，又导出了org2的业务网络管理员bob。
启动业务网络：

composer network start -c PeerAdmin@byfn-network-org1 -a [email protected] -o endorsementPolicyFile=endorsement-policy.json -A alice -C alice/admin-pub.pem -A bob -C bob/admin-pub.pem

两个组织的业务网络，启动一次就可以了。也是由于只能启动一次，不能在启动时同时为两个组织的业务网络管理员创建卡片了。
然后是，创建业务网络管理员卡片：

composer card create -p connection-org1.json -u alice -n tutorial-network -c alice/admin-pub.pem -k alice/admin-priv.pem

之后是导入卡片和ping业务网络了。

Hyperledger Composer Playground

本地安装文档、本地环境

curl -sSL https://hyperledger.github.io/composer/install-hlfv1.sh | bash

以上脚本会下载1.0.4本版的Fabric Docker镜像、启动Fabric、拉取Playground镜像并启动。看上去该脚本与fabric-tools的功能类似，启动了一个单组织单节点的Fabric，只是多了一个hyperledger/composer-playground的容器。
由于VM已经做了8080端口的NAT映射，可以直接在windows下用浏览器通过地址http://localhost:8080打开本地Playground的Web界面。
安装Composer运行时：

cd :~/composer/tutorial-network
composer runtime install --card PeerAdmin@hlfv1 --businessNetworkName tutorial-network

部署业务网络：

composer network start --card PeerAdmin@hlfv1 --networkAdmin admin --networkAdminEnrollSecret adminpw --archiveFile [email protected] --file networkadmin.card

导入业务网络管理员时报告该身份已经存在：

composer card import --file networkadmin.card
Error: Card already exists: admin@tutorial-network

ping一下业务网络，确保网络已经正确运行：

composer network ping --card admin@tutorial-network

当前目录下networkadmin.card是一个业务网络管理员卡片，需要导入到Playground，然后Playground才能联上Fabric实例。
由于本VM是用vagrant搭建的，/vagrant目录是个windows共享目录，直接把networkadmin.card复制到/vagrant目录，就可以在windows访问这个文件了，然后再导入到playground。

在本地Playground环境的http://localhost:8080/login网页上点击Import Business Network Card按钮把上面的.card文件导入。 点击新建的业务网络tutorial-network的"Connect now"按钮，提示：

[Error: connect ECONNREFUSED 127.0.0.1:7054]

这是因为playground运行在容器里，其访问fabric使用的域名，如ca.org1.example.com。这一点可以进入composer playground容器(容器名是composer)，telnet 127.0.0.1 7054，会发现不通，但telnet ca.org1.example.com 7054是通的。

之前运行composer命令行是在容器的宿主机中，所以连接配置文件的地址都是127.0.0.1。导入到playground中的card地址不对。 制作一个connection2.json，把域名改成下面的样子:

{
  "name": "fabric-network",
  "type": "hlfv1",
  "mspID": "Org1MSP",
  "peers": [
      {
          "requestURL": "grpc://peer0.org1.example.com:7051",
          "eventURL": "grpc://peer0.org1.example.com:7053"
      }
  ],
  "ca": {
      "url": "http://ca.org1.example.com:7054",
      "name": "ca.org1.example.com"
  },
  "orderers": [
      {
          "url" : "grpc://orderer.example.com:7050"
      }
  ],
  "channel": "composerchannel",
  "timeout": 300
}

运行命令创建新的业务网络卡片：

composer card create -u admin -s adminpw -n tutorial-network -p connection2.json -f [email protected]

导入到playground后提示身份admin已经存在了。

到这里才终于明白按官方文档部署的playground是和composer一起跑在容器中的。而容器中缺乏必要的调试工具，而且其连接Fabric使用的是example.com域名(而不是localhost)，这使得playground连接之前的fabric环境（如BYFN）变得很困难。
所以决定采用本地部署的playground重新调试，而不是使用容器中的。

Hyperledger Composer Playground(新)

准备Fabric环境：

cd ~/fabric-tools
docker rm -f $(docker ps -aq)
./startFabric.sh
sudo ./createPeerAdminCard.sh

首先删除了所有容器，然后启动Fabric网络，最后创建了一些Composer业务网络卡片。由于使用的不是root，所以不加sudo会报告没有权限访问/tmp。 执行创建卡片后的屏幕提示：

Development only script for Hyperledger Fabric control
Running 'createPeerAdminCard.sh'
FABRIC_VERSION is unset, assuming hlfv1
FABRIC_START_TIMEOUT is unset, assuming 15 (seconds)

Using composer-cli at v0.16.2
Deleted Business Network Card: PeerAdmin@hlfv1
Command succeeded

Successfully created business network card file to
        Output file: /tmp/[email protected]
Command succeeded

Successfully imported business network card
        Card file: /tmp/[email protected]
        Card name: PeerAdmin@hlfv1
Command succeeded

Hyperledger Composer PeerAdmin card has been imported
The following Business Network Cards are available:

Connection Profile: byfn-network-org1
┌─────────────────────────────┬───────────┬──────────────────┐
│ Card Name                   │ UserId    │ Business Network │
├─────────────────────────────┼───────────┼──────────────────┤
│ PeerAdmin@byfn-network-org1 │ PeerAdmin │                  │
└─────────────────────────────┴───────────┴──────────────────┘

Connection Profile: byfn-network-org1-only
┌──────────────────────────────────┬───────────┬──────────────────┐
│ Card Name                        │ UserId    │ Business Network │
├──────────────────────────────────┼───────────┼──────────────────┤
│ PeerAdmin@byfn-network-org1-only │ PeerAdmin │                  │
└──────────────────────────────────┴───────────┴──────────────────┘

Connection Profile: byfn-network-org2
┌─────────────────────────────┬───────────┬──────────────────┐
│ Card Name                   │ UserId    │ Business Network │
├─────────────────────────────┼───────────┼──────────────────┤
│ PeerAdmin@byfn-network-org2 │ PeerAdmin │                  │
└─────────────────────────────┴───────────┴──────────────────┘

Connection Profile: byfn-network-org2-only
┌──────────────────────────────────┬───────────┬──────────────────┐
│ Card Name                        │ UserId    │ Business Network │
├──────────────────────────────────┼───────────┼──────────────────┤
│ PeerAdmin@byfn-network-org2-only │ PeerAdmin │                  │
└──────────────────────────────────┴───────────┴──────────────────┘

Connection Profile: first-network
┌─────────────────────┬────────┬──────────────────┐
│ Card Name           │ UserId │ Business Network │
├─────────────────────┼────────┼──────────────────┤
│ admin@first-network │ admin  │                  │
└─────────────────────┴────────┴──────────────────┘

Connection Profile: hlfv1
┌────────────────────────┬───────────┬──────────────────┐
│ Card Name              │ UserId    │ Business Network │
├────────────────────────┼───────────┼──────────────────┤
│ admin@tutorial-network │ admin     │ tutorial-network │
├────────────────────────┼───────────┼──────────────────┤
│ PeerAdmin@hlfv1        │ PeerAdmin │                  │
└────────────────────────┴───────────┴──────────────────┘

Issue composer card list --name <Card Name> to get details a specific card
Command succeeded

然后再执行 composer card list可以重新列出上面的卡片清单。
创建的卡片实际上在下面的目录中：

ls ~/.composer/cards
admin@first-network     PeerAdmin@byfn-network-org1       PeerAdmin@byfn-network-org2-only
admin@tutorial-network  PeerAdmin@byfn-network-org1-only  PeerAdmin@hlfv1
composer-logs           PeerAdmin@byfn-network-org2

启动playground：

composer-playground

屏幕会锁定为日志输出。当前VM是fabric官方提供的vagrant VM，已经提前8080映射到了宿主机，所以用windows浏览器打开localhost:8080就可以进入playground。而且playground会在屏幕上显示所有刚刚创建的那8个卡片，但只有admin@tutorial-network卡片对应的Connect now按钮是可用的，因为我们刚刚启动了用./startFabric.sh脚本启动了这个卡片对应的Fabric实例。

点击Connect now进入业务网络tutorial-network，但提示链码tutorial-network不存在。（在Composer中，业务网络貌似就是链码） 执行下面的步骤安装Composer运行时并启动业务网络（分别对应安装链码和链码实例化）：

sudo composer runtime install --card PeerAdmin@hlfv1 --businessNetworkName tutorial-network
sudo composer network start --card PeerAdmin@hlfv1 --networkAdmin admin --networkAdminEnrollSecret adminpw --archiveFile [email protected] --file networkadmin.card

至于为啥要加上sudo，可能是之前的Fabric环境是用root安装的，导致一些文件权限不正常。
现在playground终于连接上本地的Fabric环境了。

playground连接BYFN

启动BYFN:

cd /opt/fabric-samples/first-network
docker rm -f $(docker ps -aq)
sudo ./byfn -m up

用另外的终端shell继续操作：

cd /opt/fabric-samples/first-network
sudo composer runtime install --card PeerAdmin@byfn-network-org1-only --businessNetworkName tutorial-network
cp ~/composer/tutorial-network/[email protected] .
sudo composer network start --card PeerAdmin@byfn-network-org1-only --networkAdmin admin --networkAdminEnrollSecret adminpw --archiveFile [email protected] --file networkadmin.card

上面的composer runtime install就是安装composer运行时。安装运行时的时候会用到网络卡片中指定的证书，而BYFN的证书是相对于fabric-samples/first-network目录的。如果在其他目录安装运行时，会提示：

Error: ENOENT: no such file or directory, open 'crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/ca.crt'

cp是把业务网络档案复制到当前目录。composer network start命令本质上是将业务网络档案中定义的链码程序用docker容器实例化。

下面将业务网卡卡片导入到业务网络：

composer network ping --card admin@tutorial-network

这时报错了，说127.0.0.1:7054的服务不可用。这是因为BYFN并没有启动CA容器。 幸好为多个组织部署Hyperledger Composer中启动了一个改良的带CA的一组容器。删除原来的BYFN的容器，重新启动新的带CA的Fabric实例：

docker rm -f $(docker ps -aq)
sodu ./byfn2.sh -m up

这个脚本是我自己改的，功能与“为多个组织部署Hyperledger Composer”中的脚本一样，可以用那个代替。 这时再运行ping就可以了:

composer network ping --card admin@tutorial-network

如果你纳闷为啥ping要用到CA服务。可以打开下列目录看看：

ls -l  ~/.composer/cards/admin@tutorial-network/credentials

你可以看到目录是空的，所以Composer需要CA服务来获取证书和私钥。

容易犯的一个错误：
业务网络档案中有个package.json文件，里面确定了业务网络的名称。当运行composer runtime install时有个参数指定业务网络名称，这个名称必须与档案中的一致，否则当业务网络启动（即链码实例化）时会报错。

实践：部署Hyperledger Composer网络到多组织Fabric

cd /opt/fabric-samples/first-network
cp COMPOSE_FILE=docker-compose-e2e.yaml COMPOSE_FILE=docker-compose-e2e2.yaml
cp byfn.sh byfn2.sh

编辑byfn2.sh:

export ORG1_ADMIN_KEY=crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/keystore/*_sk
export ORG2_ADMIN_KEY=crypto-config/peerOrganizations/org2.example.com/users/[email protected]/msp/keystore/*_sk
export ORG1_ADMIN_CRT=crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/signcerts/[email protected]
export ORG2_ADMIN_CRT=crypto-config/peerOrganizations/org2.example.com/users/[email protected]/msp/signcerts/[email protected]
(略)
#COMPOSE_FILE=docker-compose-cli.yaml
COMPOSE_FILE=docker-compose-e2e2.yaml
(略)

编辑docker-compose-e2e2.yaml：

ca0:
    container_name: ca.org1.example.com
ca1:
    container_name: ca.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/[email protected]/msp
    working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
    command: /bin/bash -c './scripts/script.sh ${CHANNEL_NAME} ${DELAY} ${LANG}; sleep $TIMEOUT'
    volumes:
        - /var/run/:/host/var/run/
        - ./../chaincode/:/opt/gopath/src/github.com/chaincode
        - ./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
    networks:
      - byfn

清理docker容器：

docker rm -f $(docker ps -aq)
./byfn2.sh

connection-org1.json:

{
    "name": "byfn-network-org1",
    "type": "hlfv1",
    "mspID": "Org1MSP",
    "peers": [
        {
            "requestURL": "grpcs://localhost:7051",
            "eventURL": "grpcs://localhost:7053",
            "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
            "hostnameOverride": "peer0.org1.example.com"
        },
        {
            "requestURL": "grpcs://localhost:8051",
            "eventURL": "grpcs://localhost:8053",
            "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
            "hostnameOverride": "peer1.org1.example.com"
        },
        {
            "requestURL": "grpcs://localhost:9051",
            "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
            "hostnameOverride": "peer0.org2.example.com"
        },
        {
            "requestURL": "grpcs://localhost:10051",
            "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
            "hostnameOverride": "peer1.org2.example.com"
        }
    ],
    "ca": {
        "url": "https://localhost:7054",
        "name": "ca-org1",
        "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
        "hostnameOverride": "ca.org1.example.com"
    },
    "orderers": [
        {
            "url" : "grpcs://localhost:7050",
            "cert": "crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/ca.crt",
            "hostnameOverride": "orderer.example.com"
        }
    ],
    "channel": "mychannel",
    "timeout": 300
}

connection-org1-only.json:

{
    "name": "byfn-network-org1-only",
    "type": "hlfv1",
    "mspID": "Org1MSP",
    "peers": [
        {
            "requestURL": "grpcs://localhost:7051",
            "eventURL": "grpcs://localhost:7053",
            "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
            "hostnameOverride": "peer0.org1.example.com"
        },
        {
            "requestURL": "grpcs://localhost:8051",
            "eventURL": "grpcs://localhost:8053",
            "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
            "hostnameOverride": "peer1.org1.example.com"
        }
    ],
    "ca": {
        "url": "https://localhost:7054",
        "name": "ca-org1",
        "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
        "hostnameOverride": "ca.org1.example.com"
    },
    "orderers": [
        {
            "url" : "grpcs://localhost:7050",
            "cert": "crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/ca.crt",
            "hostnameOverride": "orderer.example.com"
        }
    ],
    "channel": "mychannel",
    "timeout": 300
}

connection-org2.json:

{
    "name": "byfn-network-org2",
    "type": "hlfv1",
    "mspID": "Org2MSP",
    "peers": [
        {
            "requestURL": "grpcs://localhost:9051",
            "eventURL": "grpcs://localhost:9053",
            "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
            "hostnameOverride": "peer0.org2.example.com"
        },
        {
            "requestURL": "grpcs://localhost:10051",
            "eventURL": "grpcs://localhost:10053",
            "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
            "hostnameOverride": "peer1.org2.example.com"
        },
        {
            "requestURL": "grpcs://localhost:7051",
            "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
            "hostnameOverride": "peer0.org1.example.com"
        },
        {
            "requestURL": "grpcs://localhost:8051",
            "cert": "crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt",
            "hostnameOverride": "peer1.org1.example.com"
        }
    ],
    "ca": {
        "url": "https://localhost:8054",
        "name": "ca-org2",
        "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
        "hostnameOverride": "ca.org2.example.com"
    },
    "orderers": [
        {
            "url" : "grpcs://localhost:7050",
            "cert": "crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/ca.crt",
            "hostnameOverride": "orderer.example.com"
        }
    ],
    "channel": "mychannel",
    "timeout": 300
}

connection-org2-only.json:

{
    "name": "byfn-network-org2-only",
    "type": "hlfv1",
    "mspID": "Org2MSP",
    "peers": [
        {
            "requestURL": "grpcs://localhost:9051",
            "eventURL": "grpcs://localhost:9053",
            "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
            "hostnameOverride": "peer0.org2.example.com"
        },
        {
            "requestURL": "grpcs://localhost:10051",
            "eventURL": "grpcs://localhost:10053",
            "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
            "hostnameOverride": "peer1.org2.example.com"
        }
    ],
    "ca": {
        "url": "https://localhost:8054",
        "name": "ca-org2",
        "cert": "crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt",
        "hostnameOverride": "ca.org2.example.com"
    },
    "orderers": [
        {
            "url" : "grpcs://localhost:7050",
            "cert": "crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/ca.crt",
            "hostnameOverride": "orderer.example.com"
        }
    ],
    "channel": "mychannel",
    "timeout": 300
}

第七步和第八步：

sudo composer card create -p connection-org1-only.json -u PeerAdmin -c $ORG1_ADMIN_CRT -k $ORG1_ADMIN_KEY -r PeerAdmin -r ChannelAdmin
sudo composer card create -p connection-org1.json -u PeerAdmin -c $ORG1_ADMIN_CRT -k $ORG1_ADMIN_KEY -r PeerAdmin -r ChannelAdmin
sudo composer card create -p connection-org2-only.json -u PeerAdmin -c $ORG2_ADMIN_CRT -k $ORG2_ADMIN_KEY -r PeerAdmin -r ChannelAdmin
sudo composer card create -p connection-org2.json -u PeerAdmin -c $ORG2_ADMIN_CRT -k $ORG2_ADMIN_KEY -r PeerAdmin -r ChannelAdmin

剩下的9到16步按完全按原教程操作就可以。执行到17步的时候，提示[email protected]不存在，执行不下去了。

Hyperledger环境部署的整理

Hyperledger涉及多个组件，有时本地安装有时又跑在容器中，尤其当其部署在同一个VM上时，如果不整理清楚容易引起混乱。

playground

部署文档
部署脚本：

curl -sSL https://hyperledger.github.io/composer/install-hlfv1.sh | bash

导致的结果是启动了多个容器，相对Composer的部署，多了一个composer容器，该容器暴露localhost:8080端口，是Playground的web界面。
由于composer跑在容器中，所以连接配置文件中定义的fabric地址不是localhost，而是类似ca.org1.example.com。

Hyperledger Composer开发环境

部署文档
利用npm安装composer相关包，如安装和运行playground：

npm install -g composer-playground
composer-playground

所以这里的playground是本地安装，而不是跑在容器中，它连接Fabric的连接配置文件中使用的Fabric地址是localhost。

composer自带的Fabric安装脚本是：

mkdir ~/fabric-tools && cd ~/fabric-tools
curl -O https://raw.githubusercontent.com/hyperledger/composer-tools/master/packages/fabric-dev-servers/fabric-dev-servers.zip
unzip fabric-dev-servers.zip

一般启动Fabric脚本：

cd ~/fabric-tools
./downloadFabric.sh
./startFabric.sh
./createPeerAdminCard.sh

Composer开发教程

教程文档
由于要演示Yeoman生成代码，它有自己的目录。当执行：

yo hyperledger-composer:businessnetwork

输入业务网络名称tutorial-network，它会自动创建目录tutorial-network，之后的操作都是在这个目录中进行了。
之后还会启动composer-rest-server，也是在这个目录中。
再后的“查询教程”也是在这个tutorial-network目录中。

为单组织部署Fabric

文档地址
使用的~/fabric-tools目录。

为多组织部署Fabric

文档地址
从安装方式可以看出它使用的目录：

git clone -b issue-6978 https://github.com/sstone1/fabric-samples.git

它是在FYBN(first-network)脚本的基础上进行了个性化修改。所以默认目录就是fabric-samples

Fabric

安装过程在快速入门文档中，但多数学习时间是花在第一个Fabric网络文档中。
安装快速开始：

git clone https://github.com/hyperledger/fabric.git

安装fabric-samples：

git clone https://github.com/hyperledger/fabric-samples

进入BYFN目录则是：

cd fabric-samples/first-network

first-network会启动多个容器，主要特点是包括了两个组织共四个peer。

问题

Error: Failed to load connector module "composer-connector-hlfv1" for connection type "hlfv1". Cannot find module '/usr/local/lib/node_modules/composer-cli/node_modules/grpc/src/node/extension_binary/node-v57-linux-x64/grpc_node.node'
解决办法：
ubuntu@ubuntu-xenial:/usr/local/lib/node_modules/composer-cli$ npm rebuild --unsafe-perm

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