fabric多机器地址

 extra_hosts:       #=========需要添加的额外字段.
      - "orderer.example.com:47.104.178.19"
      - "peer0.org1.example.com: 47.104.252.225"  
      - "peer1.org1.example.com:47.104.252.120"
      - "peer0.org2.example.com:121.42.242.5"
      - "peer1.org2.example.com:47.104.2.113"

/root/go/src/github.com/hyperledger/fabric/fabric-samples/first
docker-compose -f docker-compose-peer0-org1.yaml -f docker-compose-peer0-org1-couch.yaml up