docker - 创建了Docker镜像，但是使用Java-SDK实例化Hyperledger Fabric中的链码后容器无法启动

Question

使用java-sdk实例化链码时，将创建容器的docker镜像。但是，chaincode容器无法使用以下日志启动。

2018-11-08 07:05:20.774 UTC [shim] userChaincodeStreamGetter -> ERRO 001 context deadline exceeded
error trying to connect to local peer
github.com/hyperledger/fabric/core/chaincode/shim.userChaincodeStreamGetter
    /opt/gopath/src/github.com/hyperledger/fabric/core/chaincode/shim/chaincode.go:112
github.com/hyperledger/fabric/core/chaincode/shim.Start
    /opt/gopath/src/github.com/hyperledger/fabric/core/chaincode/shim/chaincode.go:151
main.main
    /chaincode/input/src/github.com/fabcar/fabcar.go:200
runtime.main
    /opt/go/src/runtime/proc.go:198
runtime.goexit
    /opt/go/src/runtime/asm_amd64.s:2361
Error creating new Smart Contract: error trying to connect to local peer: context deadline exceeded%

Peer是使用docker-compose.yaml在集群模式下作为堆栈启动的。

  peer0org1:
    image: hyperledger/fabric-peer:1.2.0
    deploy:
      placement:
        constraints:
          - node.role == manager
          - node.id == vbka1smkqlqflno3hfp69rbr7
    environment:
      - CORE_PEER_ID=peer0.org1.example.com
      - CORE_PEER_LOCALMSPID=Org1MSP
      - CORE_PEER_ADDRESS=peer0org1:7051
      - CORE_PEER_CHAINCODELISTENADDRESS=0.0.0.0:7052
      - CORE_VM_ENDPOINT=http://10.80.102.27:4243
      - CORE_LOGGING_LEVEL=DEBUG
      - CORE_PEER_GOSSIP_USELEADERELECTION=true
      - CORE_PEER_GOSSIP_BOOTSTRAP=peer0org1:7051
      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=peer0org1:7051
      - CORE_PEER_PROFILE_ENABLED=true
      - CORE_PEER_GOSSIP_SKIPHANDSHAKE=true
      - CORE_PEER_GOSSIP_ORGLEADER=false
      - CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/crypto/peer/msp
      - CORE_PEER_TLS_ENABLED=false
      - CORE_PEER_TLS_KEY_FILE=/etc/hyperledger/crypto/peer/tls/server.key
      - CORE_PEER_TLS_CERT_FILE=/etc/hyperledger/crypto/peer/tls/server.crt
      - CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/crypto/peer/tls/ca.crt
    working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
    command: peer node start
    volumes:
        - /var/run/:/host/var/run/
    ports:
      - 7051:7051
      - 7052:7052
      - 7053:7053
    volumes:
        - ./channel/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/:/etc/hyperledger/crypto/peer
    depends_on:
      - orderer
    networks:
      - networky

SDK日志:

INFO: fabcar- Chain code instantiation response {
  status: 500
  message: "failed to execute transaction Tx_ID:timeout expired while starting chaincode fabcar:1 for transaction Tx_ID"
}

Answer 1

您的chaincode容器无法与对等方通信。
您需要将对等节点的CORE_VM_DOCKER_HOSTCONFIG_NETWORKMODE环境变量(或core.yaml中的vm.docker.hostConfig.NetworkMode)设置为Swarm集群使用的Docker覆盖网络的名称。您还需要将该网络标记为可连接网络，否则chaincode容器将无法在覆盖网络上进行连接。使用Swarm模式的Docker Compose文档中有一个有关参数的部分。