Hyperledger Fabric2中文文档-修改通道配置

翻译：https://hyperledger-fabric.readthedocs.io/en/latest/config_update.html

观看者：网络管理员，节点管理员

什么是通道配置？

像很多复杂系统， Hyperledger Fabric网络是由结构和相关进程组成。

结构：包含用户（像管理员），组织，节点，排序节点，CAs，智能合约，应用。

进程：结构的交互方式。最重要的是策略，控制哪些用户可以做什么以及在什么条件下做什么的规则。

识别区块链网络结构和控制结构交互方式的过程的信息包含在通道中。这些配置由通道成员共同决定，并包含在提交到通道账本的块中。通道配置可以使用工具configtxgen，configtx.yaml作为它的输入。这里有个文件案例sample configtx.yaml file here.

因为配置包含在块中（这些中第一块被成为创始区块，最新的代表通道的当前的配置），通道配置升级的过程（改变结构通过增加成员，例如，或者改变通道策略）被成为配置升级事务。

在生产网络中，这些配置升级事务通常由一个单独的通道管理员在带外讨论提出。正如初始化通道配置由通道的初始成员在带外决定一样。

在这个话题中，我们将会：

展示一个应用通道的配置例子
讨论通道中哪些参数可以被编辑
展示升级通道配置的过程，包含了必要的命令，转换，将一个配置范围设定为可以阅读的格式。
可以用来编辑通道配置的方法
显示用于重新格式化配置并获取批准所需签名的过程

可以更改的通道参数

通道是高可配置的，但也不是无限的。一旦指定了某个通道某些内容（如通道名称），他们不可以更改，更改我们将在本主题中讨论的参数之一，需要满足通道配置中指定的相关策略。

本部分，我们会看一个通道的配置例子且展示可以被修改的参数。

通道配置例子

查看应用通道配置文件在被拉取和检查后的外观。

注意：为了简单，我们这里只展示一个应用通道配置。order的系统通道配置与应用程序通道的配置非常相似，但不完全相同。但是，应用的基本规则和结构与拉取和编辑的命令相同，可以在文档 Updating the capability level of a channel中查看。

查看配置：注意这里是应用配置，不是order系统配置。

{"channel_group": {"groups": {"Application": {"groups": {"Org1MSP": {"groups": {},"mod_policy": "Admins","policies": {"Admins": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org1MSP","role": "ADMIN"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0}]}},"version": 0}},"version": "0"},"Endorsement": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org1MSP","role": "PEER"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0}]}},"version": 0}},"version": "0"},"Readers": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org1MSP","role": "ADMIN"},"principal_classification": "ROLE"},{"principal": {"msp_identifier": "Org1MSP","role": "PEER"},"principal_classification": "ROLE"},{"principal": {"msp_identifier": "Org1MSP","role": "CLIENT"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0},{"signed_by": 1},{"signed_by": 2}]}},"version": 0}},"version": "0"},"Writers": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org1MSP","role": "ADMIN"},"principal_classification": "ROLE"},{"principal": {"msp_identifier": "Org1MSP","role": "CLIENT"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0},{"signed_by": 1}]}},"version": 0}},"version": "0"}},"values": {"AnchorPeers": {"mod_policy": "Admins","value": {"anchor_peers": [{"host": "peer0.org1.example.com","port": 7051}]},"version": "0"},"MSP": {"mod_policy": "Admins","value": {"config": {"admins": [],"crypto_config": {"identity_identifier_hash_function": "SHA256","signature_hash_family": "SHA2"},"fabric_node_ous": {"admin_ou_identifier": {"certificate": "LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUNKekNDQWMyZ0F3SUJBZ0lVYWVSeWNkQytlR1lUTUNyWTg2UFVXUEdzQUw0d0NnWUlLb1pJemowRUF3SXcKY0RFTE1Ba0dBMVVFQmhNQ1ZWTXhGekFWQmdOVkJBZ1REazV2Y25Sb0lFTmhjbTlzYVc1aE1ROHdEUVlEVlFRSApFd1pFZFhKb1lXMHhHVEFYQmdOVkJBb1RFRzl5WnpFdVpYaGhiWEJzWlM1amIyMHhIREFhQmdOVkJBTVRFMk5oCkxtOXlaekV1WlhoaGJYQnNaUzVqYjIwd0hoY05NakF3TXpJME1qQXhPREF3V2hjTk16VXdNekl4TWpBeE9EQXcKV2pCd01Rc3dDUVlEVlFRR0V3SlZVekVYTUJVR0ExVUVDQk1PVG05eWRHZ2dRMkZ5YjJ4cGJtRXhEekFOQmdOVgpCQWNUQmtSMWNtaGhiVEVaTUJjR0ExVUVDaE1RYjNKbk1TNWxlR0Z0Y0d4bExtTnZiVEVjTUJvR0ExVUVBeE1UClkyRXViM0puTVM1bGVHRnRjR3hsTG1OdmJUQlpNQk1HQnlxR1NNNDlBZ0VHQ0NxR1NNNDlBd0VIQTBJQUJLWXIKSmtqcEhjRkcxMVZlU200emxwSmNCZEtZVjc3SEgvdzI0V09sZnphYWZWK3VaaEZ2YTFhQm9aaGx5RloyMGRWeApwMkRxb09BblZ4MzZ1V3o2SXl1alJUQkRNQTRHQTFVZER3RUIvd1FFQXdJQkJqQVNCZ05WSFJNQkFmOEVDREFHCkFRSC9BZ0VCTUIwR0ExVWREZ1FXQkJTcHpDQWdPaGRuSkE3VVpxUWlFSVFXSFpnYXZEQUtCZ2dxaGtqT1BRUUQKQWdOSUFEQkZBaUVBbEZtYWdIQkJoblFUd3dDOXBQRTRGbFY2SlhIbTdnQ1JyWUxUbVgvc0VySUNJRUhLZG51KwpIWDgrVTh1ZkFKbTdrL1laZEtVVnlWS2E3bGREUjlWajNveTIKLS0tLS1FTkQgQ0VSVElGSUNBVEUtLS0tLQo=","organizational_unit_identifier": "admin"},"client_ou_identifier": {"certificate": "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","organizational_unit_identifier": "client"},"enable": true,"orderer_ou_identifier": {"certificate": "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","organizational_unit_identifier": "orderer"},"peer_ou_identifier": {"certificate": "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","organizational_unit_identifier": "peer"}},"intermediate_certs": [],"name": "Org1MSP","organizational_unit_identifiers": [],"revocation_list": [],"root_certs": ["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"],"signing_identity": null,"tls_intermediate_certs": [],"tls_root_certs": ["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"]},"type": 0},"version": "0"}},"version": "1"},"Org2MSP": {"groups": {},"mod_policy": "Admins","policies": {"Admins": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org2MSP","role": "ADMIN"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0}]}},"version": 0}},"version": "0"},"Endorsement": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org2MSP","role": "PEER"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0}]}},"version": 0}},"version": "0"},"Readers": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org2MSP","role": "ADMIN"},"principal_classification": "ROLE"},{"principal": {"msp_identifier": "Org2MSP","role": "PEER"},"principal_classification": "ROLE"},{"principal": {"msp_identifier": "Org2MSP","role": "CLIENT"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0},{"signed_by": 1},{"signed_by": 2}]}},"version": 0}},"version": "0"},"Writers": {"mod_policy": "Admins","policy": {"type": 1,"value": {"identities": [{"principal": {"msp_identifier": "Org2MSP","role": "ADMIN"},"principal_classification": "ROLE"},{"principal": {"msp_identifier": "Org2MSP","role": "CLIENT"},"principal_classification": "ROLE"}],"rule": {"n_out_of": {"n": 1,"rules": [{"signed_by": 0},{"signed_by": 1}]}},"version": 0}},"version": "0"}},"values": {"AnchorPeers": {"mod_policy": "Admins","value": {"anchor_peers": [{"host": "peer0.org2.example.com","port": 9051}]},"version": "0"},"MSP": {"mod_policy": "Admins","value": {"config": {"admins": [],"crypto_config": {"identity_identifier_hash_function": "SHA256","signature_hash_family": "SHA2"},"fabric_node_ous": {"admin_ou_identifier": {"certificate": 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"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","organizational_unit_identifier": "peer"}},"intermediate_certs": [],"name": "OrdererMSP","organizational_unit_identifiers": [],"revocation_list": [],"root_certs": ["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"],"signing_identity": null,"tls_intermediate_certs": [],"tls_root_certs": ["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"]},"type": 0},"version": "0"}},"version": "0"}},"mod_policy": "Admins","policies": {"Admins": {"mod_policy": "Admins","policy": {"type": 3,"value": {"rule": "MAJORITY","sub_policy": "Admins"}},"version": "0"},"BlockValidation": {"mod_policy": "Admins","policy": {"type": 3,"value": {"rule": "ANY","sub_policy": "Writers"}},"version": "0"},"Readers": {"mod_policy": "Admins","policy": {"type": 3,"value": {"rule": "ANY","sub_policy": "Readers"}},"version": "0"},"Writers": {"mod_policy": "Admins","policy": {"type": 3,"value": {"rule": "ANY","sub_policy": "Writers"}},"version": "0"}},"values": {"BatchSize": {"mod_policy": "Admins","value": {"absolute_max_bytes": 103809024,"max_message_count": 10,"preferred_max_bytes": 524288},"version": "0"},"BatchTimeout": {"mod_policy": "Admins","value": {"timeout": "2s"},"version": "0"},"Capabilities": {"mod_policy": "Admins","value": {"capabilities": {"V2_0": {}}},"version": "0"},"ChannelRestrictions": {"mod_policy": "Admins","value": null,"version": "0"},"ConsensusType": {"mod_policy": "Admins","value": {"metadata": {"consenters": [{"client_tls_cert": "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","host": "orderer.example.com","port": 7050,"server_tls_cert": "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"}],"options": {"election_tick": 10,"heartbeat_tick": 1,"max_inflight_blocks": 5,"snapshot_interval_size": 16777216,"tick_interval": "500ms"}},"state": "STATE_NORMAL","type": "etcdraft"},"version": "0"}},"version": "0"}},"mod_policy": "Admins","policies": {"Admins": {"mod_policy": "Admins","policy": {"type": 3,"value": {"rule": "MAJORITY","sub_policy": "Admins"}},"version": "0"},"Readers": {"mod_policy": "Admins","policy": {"type": 3,"value": {"rule": "ANY","sub_policy": "Readers"}},"version": "0"},"Writers": {"mod_policy": "Admins","policy": {"type": 3,"value": {"rule": "ANY","sub_policy": "Writers"}},"version": "0"}},"values": {"BlockDataHashingStructure": {"mod_policy": "Admins","value": {"width": 4294967295},"version": "0"},"Capabilities": {"mod_policy": "Admins","value": {"capabilities": {"V2_0": {}}},"version": "0"},"Consortium": {"mod_policy": "Admins","value": {"name": "SampleConsortium"},"version": "0"},"HashingAlgorithm": {"mod_policy": "Admins","value": {"name": "SHA256"},"version": "0"},"OrdererAddresses": {"mod_policy": "/Channel/Orderer/Admins","value": {"addresses": ["orderer.example.com:7050"]},"version": "0"}},"version": "0"},"sequence": "3"
}

看起来很能很吓人，但是它是规律的结构。

例如，让我们看看关闭了选项卡的配置。

注意，这里是应用通道，不是order系统通道

配置的结构现在更加明显。你可以看配置组：Channel，Application， Orderer，每一个参数都关联在配置组中（下一部分再看），但代表组织的MSP。注意Channel配置组在Orderer配置组下面。

编辑配置

概念上说升级通道配置分了简单的三步。

1.获取最新的通道配置

2.创建一个可编辑的通道配置

3.创建修改配置的事务

然而，正如你将看到的，这种概念上的简单性被包装在一个有点复杂的过程中。因此，有些用户可能会选择编写脚本，以换取、转换和确定配置更新的范围。用户可以选择如何修改通道配置本身，可以手动修改，也可以使用类似于jq的工具修改。

有两个专门的教程来介绍修改通道配置实现目的：

Adding an Org to a Channel：将一个新组织加入到通道中。

Updating channel capabilities：如何升级通道能力。（官方文档丢失）

在这个话题里，我们将独立展示配置更新的最终目标编辑通道配置的过程。

首先设置环境变量

在使用示例命令时，确保设置了如下的环境变量。这将取决于构建部署的方式。注意通道名称，CH_NAME 需要设置，因为通道配置更新仅适用于正在更新的通道配置。（除了ordering系统通道之外，其配置默认复制到应用程序通道的配置中）

CH_NAME：要修改的通道名称。
TLS_ROOT_CA：建议更新的组织的TLS CA的根CA证书的路径。
CORE_PEER_LOCALMSPID：MSP的名称。
CORE_PEER_MSPCONFIGPATH：组织MSP 的绝对路径。
ORDERER_CONTAINER：排序节点容器。注意，当以ordering service为目标时，可以将ordering service中的任何活动节点作为目标。你的请求会自动转发给领导者。

注意：本文为JSON和protobuf文件提供了默认的名称（config_block.pb, config_block.json）。你可以自己定义文件名称。但是，请注意，除非在每次配置更新结束时返回并删除这些文件，否则在进行其他更新时必须选择不同的文件。

步骤1：拉取并转换配置

升级配置的第一步是获取最新的配置区块。这是三个过程。首先，我们拉取的区块配置是protobuf格式的，创建一个文件叫config_block.pb。

确保你在peer容器中，现在开始：

peer channel fetch config config_block.pb -o $ORDERER_CONTAINER -c $CH_NAME --tls --cafile $TLS_ROOT_CA

下一步，将protobuf转换到JSON，config_block.json（因为JSON容易读和理解）：

configtxlator proto_decode --input config_block.pb --type common.Block --output config_block.json

最后，我们从配置中除去不必要的元数据，让配置文件看起来更好读。可以自定义新文件名，这里我们叫config.json。

jq .data.data[0].payload.data.config config_block.json > config.json

现在我们复制一个config.json起名modified_config.json。没有直接编辑config.json，因为稍后我们要计算config.json和modified_config.json之间的不同。

cp config.json modified_config.json

步骤2：修改配置

在这一步有两种方式来修改配置。

1.使用文本编辑器打开modified_config.json。现有的在线教程描述了如何从没有编辑器的容器中复制文件，对其进行编辑并将其添加会容器。

2.使用jq来编辑配置。

手动编辑还是使用jq由你决定。因为jq是简单且可编程的（对多个通道进行相同配置更新时的优势），jq方式是推荐方式。如何使用jq的例子可以查看 Updating channel capabilities，展示多个jq命令修改配置的capabilities 文件名叫capabilities.json。如果你更新的不是通道的capabilities ，则必须相应地修改jq命令和JSON文件。

步骤3：重新编译并提交配置

无论是手动修改该还是使用jq，在将配置更新提交给要批准的通道上的其他管理员之前，你现在必须运行进程，以拉取和确定范围，执行一个步奏来计算旧配置和新配置之间的差异。

首先，将config.json文件转换成protobuf格式，转换后文件叫config.pb。然后对modified_config.json进行转换。然后计算两个文件，创建新文件叫config_update.pb。

configtxlator proto_encode --input config.json --type common.Config --output config.pbconfigtxlator proto_encode --input modified_config.json --type common.Config --output modified_config.pbconfigtxlator compute_update --channel_id $CH_NAME --original config.pb --updated modified_config.pb --output config_update.pb

现在已经计算了新旧文件的不同，现在可以将修改应用到配置文件中。

configtxlator proto_decode --input config_update.pb --type common.ConfigUpdate --output config_update.jsonecho '{"payload":{"header":{"channel_header":{"channel_id":"'$CH_NAME'", "type":2}},"data":{"config_update":'$(cat config_update.json)'}}}' | jq . > config_update_in_envelope.jsonconfigtxlator proto_encode --input config_update_in_envelope.json --type common.Envelope --output config_update_in_envelope.pb

提交修改配置事务

peer channel update -f config_update_in_envelope.pb -c $CH_NAME -o $ORDERER_CONTAINER --tls --cafile $TLS_ROOT_CA

我们的配置更新事务表示原始配置和修改后的配置之间的差异，但ordering service 会将其转换为完整的通道配置。

得到必要签名

当你成功的生成了新的protobuf 文件，它将需要满足更改内容的策略，通道（有时不是）需要其它组织的签名。

注意：根据应用程序的不同，你可以编写签名集合的脚本。一般来说，你可能总是收集到比所需更多的签名。

获取这些签名的实际过程将取决于你如何设置系统，但有两个主要实现。目前，Fabric命令行默认为“pass it along”系统。这是，组织管理员将配置的升级发送给其它需要签名的组织的管理员。其他管理员签名（或者拒绝），将其传递给下一个管理员，一直进行，知道有足够的签名可以用来提交。

这有一个简单的优点——当有足够的签名时，最后一个管理员可以直接地提交配置事务（在Fabric中，peer通道更新命令默认包含了一个签名）。然而，这个过程只适用于较小的通道，因为“传递”方法可能会很耗时。

另一个选择是将更新提交给通道上的每个管理员，并等待足够的签名返回。然后可以将这些签名合在一起一并提交。这使得创建配置更新的管理员（强制他们处理每个签名者的一个文件）的工作更加困难，但对于正在开发Fabric管理应用程序的用户来说，这是推荐的工作流。

一旦配置被添加到账本，最好将其拉取出来转换为JSON并检查是否正确添加了内容。这也将作为最新配置的副本。