记录一下自己根据书本写hello world fabric项目的过程

（2）docker-peer.yaml： 启动Peer服务配置文件

8、准备部署智能合约
智能合约这里最好是有个单独的文件夹，这样分开比较好。一般路径为
项目下的/chaincode/go/helloworld

9、启动Fabric网络

（1） 启动Orderer

docker-compose -f docker-orderer.yaml up -d

output:

ample …
ample … done

（2） 启动Peer

docker-compose -f docker-peer.yaml up -d

output:

ample …
ample … done
Creating cli …
Creating cli … done

（3）启动Cli容器

docker exec -it cli bash

（4） 创建通道
#ORDERER_CA=/opt/gopath/src/github/hyperledger/fabric/peer/crypto/ordererOrganizations/example/ample/msp/ample-cert.pem

peer channel create -ample:7050 -c mychannel -f ./ --tls --cafile $ORDERER_CA

或者直接合并：
peer channel create -ample:7050 -c mychannel -f ./ --tls --cafile /opt/gopath/src/github/hyperledger/fabric/peer/crypto/ordererOrganizations/example/ample/msp/ample-cert.pem

或者尝试直接在系统中执行
peer channel create -ample:7050 -c mychannel -f ./ --tls --cafile ${PWD}/crypto-config/ordererOrganizations/example/ample/msp/ample-cert.pem

此处bug:

2020-12-28 10:32:56.482 UTC [main] InitCmd -> WARN 001 CORE_LOGGING_LEVEL is no longer supported, please use the FABRIC_LOGGING_SPEC environment variable
2020-12-28 10:32:56.485 UTC [main] SetOrdererEnv -> WARN 002 CORE_LOGGING_LEVEL is no longer supported, please use the FABRIC_LOGGING_SPEC environment variable
Error: failed to create deliver client for orderer: orderer client failed to connect ample:7050: failed to create new connection: context deadline exceeded

未完：
解决尝试1：
Error: failed to create deliver client :orderer client failed to connect to orderer

解决尝试2：

使用了文档中的过程

用了core.yaml进行docker的通道创建
.2/deploypeer/peerchecklist.html?highlight=core.yaml#checklist-for-a-production-peer

root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# export CORE_PEER_TLS_ENABLED=true
root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# export CORE_PEER_LOCALMSPID=“Org1MSP”
root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# export CORE_PEER_TLS_ROOTCERT_FILE=KaTeX parse error: Expected 'EOF', got '#' at position 155: …bric/helloworld#̲ export CORE_PE…{PWD}/crypto-config/ample/users/Admin&#ample/msp
root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# export CORE_PEER_ADDRESS=localhost:7051
root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# peer channel create -o localhost:7050 --ample -c mychannel -f ./ --outputBlock ./channel-artifacts/mychannel.block --tls --cafile KaTeX parse error: Expected 'EOF', got '#' at position 404: …bric/helloworld#̲ export FABRIC_…PWD/c
chaincode/ channel-artifacts/ config/ configtx.yaml crypto-config/ crypto-config.yaml
root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# export FABRIC_CFG_PATH=KaTeX parse error: Expected 'EOF', got '#' at position 187: …bric/helloworld#̲ export FABRIC_…PWD/c
chaincode/ channel-artifacts/ config/ configtx.yaml crypto-config/ crypto-config.yaml
root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# export FABRIC_CFG_PATH=$PWD/config/
root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# echo $FABRIC_CFG_PATH
/home/dujunjie/GolandProjects/fabric/helloworld/config/

root@ubuntu:/home/dujunjie/GolandProjects/fabric/helloworld# peer channel create -o localhost:7050 --ample -c mychannel -f ./ --outputBlock ./channel-artifacts/mychannel.block --tls --cafile ${PWD}/crypto-config/ordererOrganizations/example/ample/msp/ample-cert.pem

最后报错
2020-12-28 03:31:53.728 PST [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
Error: got unexpected status: FORBIDDEN – config update for existing channel did not pass initial checks: implicit policy evaluation failed - 0 sub-policies were satisfied, but this policy requires 1 of the ‘Writers’ sub-policies to be satisfied: permission denied

.html

Hyperledger Fabric创建通道抛错Error: got unexpected status: FORBIDDEN – Failed to reach implicit threshold of 1 sub-policies, required 1 remaining: permission denied解决方案
安装Hyperledger Fabric，服务整个都跑起来了，但是抛了一个错，Error: got unexpected status: FORBIDDEN – Failed to reach implicit threshold of 1 sub-policies, required 1 remaining: permission denied
这个时候找了很多解决的办法，解决思路是，仔细看一下orderer的日志，看清楚它到底是具体的哪一个部分有问题，
看到大多数的问题在于：
1）UTC [cauthdsl] deduplicate -> ERRO 014 Principal deserialization failure (the supplied identity is not valid: x509: certificate signed by unknown authority (possibly because of “x509: ECDSA verification failure” while trying to verify candidate authority certificate “ample”)) for identity
错误原因：由于启动过网络并且更新了证书，在没有删除干净的环境中启动复用的之前的volume，所以导致证书认证失败。
解决方案：执行如下命令删除卷
docker-compose -f docker-compose-cli.yaml down --volumes --remove-orphans
docker rm -f $(docker ps -a | grep “hyperledger/*” | awk “{print $1}”)
docker volume prune
2）这个是我自己的问题，deduplicate -> ERRO 2dd Principal deserialization failure (MSP OrdererMSP is unknown) for identity
其实这个不在创世机构里面的组织， 发起创建channel交易
去查看，docker-compose配置文件中的- ORDERER_GENERAL_LOCALMSPID=OrdererMSP,这个值需要和configtx.yaml配置文件中的组织名称保持一致，否则就会报上面的错误，
解决方案：修改保持两边一致即可

自己的思路：
1、从文档的脚本中找到docker-compose.yaml是如何用命令运行的
2、找到docker-compose.yaml的路径
前两个这个看这个文章

Fabric_超详细的fabric网络搭建03-docker-compose文件的编写

3、解决上面的es to be satisfied: permission denied错误，解决尝试2

最后的解决：

应该是
docker-peer文件中

extra_hosts:- &#ample:192.168.162.130"

这个内容，主机名+IP，应该是自己的本地IP。因为DOCKER中的IP地址都是0.0.0.0。连接成功。

然后出现了BUG
Error: got unexpected status: FORBIDDEN – config update for existing channel did not pass initial checks: implicit policy evaluation failed - 0 sub-policies were satisfied, but this policy requires 1 of the ‘Writers’ sub-policies to be satisfied: permission denied

根据百度查阅资料，修改了configtx.yaml之后

又出现了以下错误

Error: got unexpected status: BAD_REQUEST – error validating channel creation transaction for new channel ‘mychannel’, could not successfully apply update to template configuration: error authorizing update: error validating DeltaSet: policy for [Group] /Channel/Application not satisfied: implicit policy evaluation failed - 0 sub-policies were satisfied, but this policy requires 1 of the ‘Admins’ sub-policies to be satisfied

据此难以解决此问题，便感觉是版本差别较大，于是转换思路。直接根据fabric官方的教程，fabric-samples的运行进行分析，并据此写一个hello world。