“First—Network”场景，1个Orderer，2个组织，每个组织2个Peer。
生成各个公钥，私钥和CA //todo
$ ~ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f053fe5f10c4 hyperledger/fabric-tools "/bin/bash" 40 minutes ago Up 40 minutes cli
a0f6fba6a519 hyperledger/fabric-peer "peer node start" 40 minutes ago Up 40 minutes 0.0.0.0:8051->7051/tcp, 0.0.0.0:8053->7053/tcp peer1.org1.example.com
ba162fa79aca hyperledger/fabric-peer "peer node start" 40 minutes ago Up 40 minutes 0.0.0.0:9051->7051/tcp, 0.0.0.0:9053->7053/tcp peer0.org2.example.com
ea3bd8c47081 hyperledger/fabric-peer "peer node start" 40 minutes ago Up 40 minutes 0.0.0.0:10051->7051/tcp, 0.0.0.0:10053->7053/tcp peer1.org2.example.com
d9df86737daf hyperledger/fabric-orderer "orderer" 40 minutes ago Up 40 minutes 0.0.0.0:7050->7050/tcp orderer.example.com
bff4a03185e5 hyperledger/fabric-peer "peer node start" 40 minutes ago Up 40 minutes 0.0.0.0:7051->7051/tcp, 0.0.0.0:7053->7053/tcp peer0.org1.example.com
export CHANNEL_NAME=mychannel
peer channel create -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/channel.tx --tls --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem
此时，Orderer收到请求，创建channel，并为该channel生成一个区块链
root@d9df86737daf:/var/hyperledger/production/orderer/chains/mychannel# pwd
/var/hyperledger/production/orderer/chains/mychannel
root@d9df86737daf:/var/hyperledger/production/orderer/chains/mychannel# ll
total 20
drwxr-xr-x 2 root root 4096 Jan 25 09:11 ./
drwxr-xr-x 4 root root 4096 Jan 25 09:11 ../
-rw-r----- 1 root root 11980 Jan 25 09:11 blockfile_000000
root@d9df86737daf:/var/hyperledger/production/orderer/chains/mychannel#
这个初始块内包含了类似Orderer自身创世块的9个证书(参见MSP，以及Orderer自己的证书。
$ mychannel grep -a "END CER" blockfile_000000 -B1|grep -v "END\\\\|\\\\-\\\\-"|sort|uniq |wc -l
10
$ mychannel grep -a "END CER" blockfile_000000 -B1|grep -v "END\\\\|\\\\-\\\\-"|sort|uniq|xargs -I{} sh -c "grep -ar {} /Users/nuc/fabric/fabric-samples/first-network/crypto-config;"|grep signcerts|grep orderer.example
/Users/nuc/fabric/fabric-samples/first-network/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/msp/signcerts/orderer.example.com-cert.pem:Bezm0h6Hg1Evpizx2MECIGtRP0ahweubMgnUjmSgq7Vf8X+tJF10oA0hxuv+E+SL
上一步创建channel后，会返回一个创世块，mychannel.block，节点可以用这个块来加入channel。注意这个块和Orderer生成的块基本一致，除了文件头尾有些不同。
# 从docker提取到本地后查看
$ ls -l
total 48
-rw-r----- 1 nuc staff 11980 1 25 17:45 blockfile_000000
-rw-r--r-- 1 nuc staff 11987 1 25 17:37 mychannel.block
执行命令，加入channel
CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/[email protected]/msp
CORE_PEER_ADDRESS=peer0.org1.example.com:7051
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
peer channel join -b mychannel.block
此时，peer0上就有了这个区块链
root@bff4a03185e5:/var/hyperledger/production/ledgersData/chains/chains/mychannel# ll
total 20
drwxr-xr-x 2 root root 4096 Jan 25 09:41 ./
drwxr-xr-x 3 root root 4096 Jan 25 09:41 ../
-rw-r----- 1 root root 11981 Jan 25 09:41 blockfile_000000
root@bff4a03185e5:/var/hyperledger/production/ledgersData/chains/chains/mychannel#
该区块与Orderer的基本一致。