Fabric环境搭建及采坑经历
系统环境
OSX: 11.4
Docker Engine : v20.10.6
Docker Compose: 1.29.1
Kubernetes: v1.19.7
Node: v12.22.1
Go: 1.16.5
环境准备
- Docker 虚拟化容器
- Kubernetes（k8s） 集群(本地可选择采用minikube)
- Kubectl 命令行工具 (用于与集群通信)
Minikube（baas本地开发环境）
本地安装minikube并启动 文档
MacOS可跳过安装minikube，在Docker设置中直接启用Kubernetes即可
// 启动本地集群
minikube start
打开 Kubernetes 仪表板
minikube dashboard --url
运行fabric-samples
// 启动测试网络并创建channel和ca
./network.sh up createChannel -c mychannel -ca
./network.sh down
./network.sh deployCC -ccn basic -ccp ../asset-transfer-basic/chaincode-go -ccl go
./network.sh deployCC -ccn basic -ccp ../asset-transfer-basic/chaincode-java/ -ccl java
./network.sh deployCC -ccn basic -ccp ../asset-transfer-basic/chaincode-typescript -ccl typescript
./network.sh deployCC -ccn basic -ccp ../asset-transfer-basic/chaincode-javascript -ccl javascript
采坑经历
安装链码
安装链码步骤Error，报错信息如下：
Error: chaincode install failed with status: 500 - failed to invoke backing implementation of 'InstallChaincode': could not build chaincode: docker build failed: docker image build failed: docker build failed: Failed to pull hyperledger/fabric-nodeenv:2.3: API error (500): Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
根据报错信息发现hyperledger/fabric-nodeenv:2.3这个镜像拉取失败
解决方案: Stack Overflow
- 尝试更改/etc/resolv.conf配置文件中nameserver为Google DNS并重启docker，重新拉取镜像无效。
- 在OSX环境，将Docker配置中Preferences -> Experimental Features->Experimental Virtualization Framework改为disable，重启Docker后，脚本运行成功。
API Service Error
本地环境Service错误，报错日志如下:
2021-06-30T07:24:04.530Z - error: [ServiceEndpoint]: Error: Failed to connect before the deadline on Committer- name: orderer.example.com:7050, url:grpcs://orderer.example.com:7050, connected:false, connectAttempted:true
2021-06-30T07:24:04.530Z - error: [ServiceEndpoint]: waitForReady - Failed to connect to remote gRPC server orderer.example.com:7050 url:grpcs://orderer.example.com:7050 timeout:3000
2021-06-30T07:24:04.530Z - error: [DiscoveryService]: _buildOrderer[mychannel] - Unable to connect to the discovered orderer orderer.example.com:7050 due to Error: Failed to connect before the deadline on Committer- name: orderer.example.com:7050, url:grpcs://orderer.example.com:7050, connected:false, connectAttempted:true
解决方案：添加相关域名至本地hosts，并重启docker容器。