Hyperledger Fabric 1.0 版本整體 重新設計了架構，預計將於今年 3 月份釋出。目前已經進入了 alpha 階段，可以進行功能性驗證。

本文將介紹如何快速啟動一個 Fabric 1.0 的網路，並部署和呼叫 chaincode 進行測試。

安裝 Docker

Docker 支援 Linux 常見的發行版，如 Redhat/Centos/Ubuntu 等，推薦使用 1.12 或者更新的版本。

$ curl -fsSL https://get.docker.com/ | sh

以 Ubuntu 14.04 為例，安裝成功後，修改 Docker 服務配置（/etc/default/docker 檔案）。

DOCKER_OPTS="$DOCKER_OPTS
 
 -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --api-cors-header='*'"

重啟 Docker 服務。

$ sudo service docker restart

Ubuntu 16.04 中預設採用了 systemd 管理啟動服務，Docker 配置檔案在/etc/systemd/system/docker.service.d/override.conf。

修改後，需要通過如下命令重啟 Docker 服務。

$ sudo systemctl daemon-reload
$ sudo systemctl restart docker.service

安裝 docker-compose

首先，安裝 python-pip 軟體包。

$ sudo aptitude install python-pip

安裝 docker-compose（推薦為 1.8.0 及以上版本）。

$ sudo pip install docker-compose>=1.8.0

獲取 Docker 映象

Docker 映象可以自行從原始碼編譯，或從社群 DockerHub 倉庫下載。這裡也提供了調整（精簡指令，基於 golang:1.7 基礎映象製作）後的映象，與社群版本略有差異，但功能是一致的。

通過如下命令拉去相關映象，並更新映象別名。

$ docker pull yeasy/hyperledger-fabric-base:latest \
&& docker pull yeasy/hyperledger-fabric-peer:latest \
&& docker pull yeasy/hyperledger-fabric-orderer:latest \
&& docker pull yeasy/hyperledger-fabric-ca:latest \
&& docker pull yeasy/blockchain-explorer:latest \
&& docker tag yeasy/hyperledger-fabric-peer hyperledger/fabric-peer \
&& docker tag yeasy/hyperledger-fabric-orderer hyperledger/fabric-orderer \
&& docker tag yeasy/hyperledger-fabric-ca hyperledger/fabric-ca \
&& docker tag yeasy/hyperledger-fabric-base hyperledger/fabric-baseimage \
&& docker tag yeasy/hyperledger-fabric-base hyperledger/fabric-ccenv:x86_64-1.0.0-snapshot-preview
 

啟動 fabric 1.0 網路

下載 Compose 模板檔案。

$ git clone https://github.com/yeasy/docker-compose-files

進入 hyperledger/1.0 目錄，檢視包括若干模板檔案，功能如下。

• peers.yml: 包含 peer 節點的服務模板。
• docker-compose.yml: 啟動 1 個 最小化的環境，包括 1 個 peer 節點、1 個 Orderer 節點、1 個 CA 節點。

通過如下命令快速啟動。

$ docker-compose up

注意輸出日誌中無錯誤資訊。

此時，系統中包括三個容器。

$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fc55d2334c38 hyperledger/fabric-peer "peer node start" 15 minutes ago Up 15 minutes 7050/tcp, 7052-7059/tcp, 0.0.0.0:7051->7051/tcp fabric-peer0
9c0afbba97ad hyperledger/fabric-orderer "orderer" 15 minutes ago Up 15 minutes 0.0.0.0:7050->7050/tcp fabric-orderer
ef96fa77bf45 hyperledger/fabric-ca "fabric-ca server sta" 15 minutes ago Up 15 minutes 7054/tcp, 0.0.0.0:8888->8888/tcp fabric-ca

測試 chaincode 操作

啟動 fabric 網路後，可以進行 chaincode 操作，驗證網路啟動正常。

部署 chaincode

通過如下命令進入容器 peer0。

$ docker exec -it fabric-peer0 bash

在容器中執行部署命令，注意輸出日誌無錯誤提示，最終返回結果應該為 response:<status:200 message:"OK" payload:"100" >。

[email protected]:/go/src/github.com/hyperledger/fabric# peer chaincode deploy -n test_cc -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02 -c '{"Args":["init","a","100","b","200"]}'
...
[chaincodeCmd] chaincodeInvokeOrQuery -> INFO 018 Invoke result: version:1 response:<status:200 message:"OK" payload:"100" > payload:"\n \361\031\221\246\213\277\220C\016\370\265\034Vw\350\326\241\020\254\311\306\276gz\335n\"\\`;W\035\0224\n(\002\004lccc\001\007test_cc\004\001\001\001\001\000\000\007test_cc\001\001a\004\001\001\001\001\000\000\032\010\010\310\001\032\003100" endorsement:<endorser:"\n\007DEFAULT\022\232\007-----BEGIN -----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\n25aDPQHGGq2AvhKT0wvt08cX1GTGCIbfmuLpMwKQj38=\n-----END -----\n" signature:"0E\002!\000\275O9UM\334}\356\304D\260\267\315\230\210O\030\342\200\027B\346\347(U\272\224],\275\235:\002 -_-H$\315\332\363*c\325\373\253\320\201j\216\374\363<\037\r5\3257\356\312\354\003\314\266\013" >
[main] main -> INFO 019 Exiting.....

此時，系統中生成類似 dev-peer0-test_cc-0-305216ca522e84d0bf8c2b542b16bd3901dcb1879a970ae7c1eee3a74fbdee583eb8b74ad88edefc3d9647d47663f6b14574734c93a36b3968b077f3870d79cf 的 chaincode Docker 映象，但並沒有啟動新的容器。

查詢 chaincode

對部署成功的 chaincode 執行查詢操作，查詢 a 的餘額。

同樣的，在 peer0 容器中執行如下命令，注意輸出無錯誤資訊，最後的結果為 <status:200 message:"OK" payload:"100" >。

[email protected]:/go/src/github.com/hyperledger/fabric# peer chaincode invoke -n test_cc -c '{"Args":["query","a"]}'
[chaincodeCmd] chaincodeInvokeOrQuery -> INFO 018 Invoke result: version:1 response:<status:200 message:"OK" payload:"100" > payload:"\n \235\034J[\217!\334\240\354\376\265\374X\211)a\336q\302\024\274N\004M\271b\006\255#2Q\253\0224\n(\002\004lccc\001\007test_cc\004\001\001\001\001\000\000\007test_cc\001\001a\004\001\001\001\001\000\000\032\010\010\310\001\032\003100" endorsement:<endorser:"\n\007DEFAULT\022\232\007-----BEGIN -----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\n25aDPQHGGq2AvhKT0wvt08cX1GTGCIbfmuLpMwKQj38=\n-----END -----\n" signature:"0D\002 l`\362\365\342\356a\3562\211N\255\253F\200\365]\321\257\013^\303o\266\301}\266M\362\336\256\346\002 D\037.\347\261G\257\274J.\265\206}=\261(\036(\021\370\306_*\3122g\005q\346h>{" >
[main] main -> INFO 019 Exiting.....

類似的，查詢 b 的餘額，注意最終返回結果為 response:<status:200 message:"OK" payload:"200" >。

[chaincodeCmd] chaincodeInvokeOrQuery -> INFO 018 Invoke result: version:1 response:<status:200 message:"OK" payload:"200" > payload:"\n U\207\330\255\023\344M\014\321\231\013\036\267\353\251DW4d\372j_/\236m<\201\333\221?\243\325\0224\n(\002\004lccc\001\007test_cc\004\001\001\001\001\000\000\007test_cc\001\001b\004\001\001\001\001\000\000\032\010\010\310\001\032\003200" endorsement:<endorser:"\n\007DEFAULT\022\232\007-----BEGIN -----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\n25aDPQHGGq2AvhKT0wvt08cX1GTGCIbfmuLpMwKQj38=\n-----END -----\n" signature:"0E\002!\000\271-\211\017\277!)g\005\005\252h\355\253U\216p\242\351\[email protected]\372\361\241\360\274\351\362\374a\243\010\002 \021\266R\027\373\254\351?\351u\200RWQY1w|\361\217G\353\221\010\013\002\207\222b\324\330\320" >
[main] main -> INFO 019 Exiting.....

對部署後的 chaincode 執行查詢或呼叫操作後，如果系統中沒有對應的 chaincode 容器，則會利用之前生成的映象自動啟動新的容器。

$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c95c6b078116 dev-peer0-test_cc-0-305216ca522e84d0bf8c2b542b16bd3901dcb1879a970ae7c1eee3a74fbdee583eb8b74ad88edefc3d9647d47663f6b14574734c93a36b3968b077f3870d79cf "/opt/gopath/bin/test" 13 minutes ago Up 13 minutes dev-peer0-test_cc-0-305216ca522e84d0bf8c2b542b16bd3901dcb1879a970ae7c1eee3a74fbdee583eb8b74ad88edefc3d9647d47663f6b14574734c93a36b3968b077f3870d79cf
fc55d2334c38 hyperledger/fabric-peer "peer node start" 15 minutes ago Up 15 minutes 7050/tcp, 7052-7059/tcp, 0.0.0.0:7051->7051/tcp fabric-peer0
9c0afbba97ad hyperledger/fabric-orderer "orderer" 15 minutes ago Up 15 minutes 0.0.0.0:7050->7050/tcp fabric-orderer
ef96fa77bf45 hyperledger/fabric-ca "fabric-ca server sta" 15 minutes ago Up 15 minutes 7054/tcp, 0.0.0.0:8888->8888/tcp fabric-ca

呼叫 chaincode

對部署成功的 chaincode 執行呼叫操作，如 a 向 b 轉賬 10 元。

在 peer0 容器中執行如下操作，注意最終結果狀態正常 response:<status:200 message:"OK" >。

[email protected]:/go/src/github.com/hyperledger/fabric# peer chaincode invoke -n test_cc -c '{"Args":["invoke","a","b","10"]}'
...
[chaincodeCmd] chaincodeInvokeOrQuery -> INFO 018 Invoke result: version:1 response:<status:200 message:"OK" > payload:"\n \356\330\226\263z\315?\[email protected]\327x\307\375V_\277\367vp1)\232!<\230\207\367n*c\271\311\022C\n<\002\004lccc\001\007test_cc\004\001\001\001\001\000\000\007test_cc\002\001a\004\001\001\001\001\001b\004\001\001\001\001\002\001a\000\00290\001b\000\003210\000\032\003\010\310\001" endorsement:<endorser:"\n\007DEFAULT\022\232\007-----BEGIN -----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\n25aDPQHGGq2AvhKT0wvt08cX1GTGCIbfmuLpMwKQj38=\n-----END -----\n" signature:"0E\002!\000\333\240\t\\\275\225{\230\3704D\366p\251\255\211\251\225\367\r1y\211\004\337\311k,\355\276e\273\002 Q\33242u\251s\267\025Q\271\222\367\321i\344\002\331\022\214\243\206\274\206C*\204k2\373\021\001" >
[main] main -> INFO 019 Exiting.....

此時，再次查詢 a 和 b 的餘額，發現發生變化。

[email protected]:/go/src/github.com/hyperledger/fabric# peer chaincode invoke -n test_cc -c '{"Args":["query","a"]}'
[chaincodeCmd] chaincodeInvokeOrQuery -> INFO 018 Invoke result: version:1 response:<status:200 message:"OK" payload:"90" > payload:"\n \306\264k\315\327\262\345\207\[email protected]*8\373\376\345B\222r\177\254\375\304\354c\3478(qT\267n\005\0223\n(\002\004lccc\001\007test_cc\004\001\001\001\001\000\000\007test_cc\001\001a\004\001\005\001\001\000\000\032\007\010\310\001\032\00290" endorsement:<endorser:"\n\007DEFAULT\022\232\007-----BEGIN -----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\n25aDPQHGGq2AvhKT0wvt08cX1GTGCIbfmuLpMwKQj38=\n-----END -----\n" signature:"0E\002!\000\273\014\323\264\003\252\275\341\n\304\021\237\331\267\253\325\250jS\262$~\251z\227\304\022\0179X\024\267\002 v\364h\265\301w\366\274\272\2723/F{u\037v1\372\031\331I\255]\000f\324\237\235t\341\212" >
[main] main -> INFO 019 Exiting.....

a 的新餘額為 90。

[email protected]:/go/src/github.com/hyperledger/fabric# peer chaincode invoke -n test_cc -c '{"Args":["query","b"]}'
[chaincodeCmd] chaincodeInvokeOrQuery -> INFO 018 Invoke result: version:1 response:<status:200 message:"OK" payload:"210" > payload:"\n \004=\242\355\266\262\202V\332fA\256\227\001a\007\363G\226\277\032B6kN\317\010\332\331\251\212\227\0224\n(\002\004lccc\001\007test_cc\004\001\001\001\001\000\000\007test_cc\001\001b\004\001\005\001\001\000\000\032\010\010\310\001\032\003210" endorsement:<endorser:"\n\007DEFAULT\022\232\007-----BEGIN -----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\n25aDPQHGGq2AvhKT0wvt08cX1GTGCIbfmuLpMwKQj38=\n-----END -----\n" signature:"0D\002 6H\037>\321Er\232&\205\245\274;\201\225\333\371|8\035\235\3354u\003\371\310\245\347\261nk\002 gF\362\304!0E\236\320\0148\203\236\330WdU\004C\007\010bC\234\026\351\264\335ZoC\316" >
[main] main -> INFO 019 Exiting.....

b 的新餘額為 210。

更多 Hyperledger Fabric 相關的應用和技術話題，可以參考 社群文件 和 《區塊鏈技術指南》。