ChainCode容器生命周期澄清

Question

所以我想知道我的设置是否有一些缺陷，或者我没有得到链码容器生命周期的概念。

问题如下。在通道上安装/实例化链代码之后，我必须通过docker cli对链代码进行查询/调用，然后我才能从nodejs后端与相应的注册对等方执行相同的操作。

因此，在观看docker日志时，在我从docker cli进行调用之前，链代码容器不会处于活动状态。这是有意的吗？还是错过了设置的东西？为我澄清这个问题或发布一些文档会非常酷。

Answer 1

这是正常的，为什么会发生这种情况是因为实例化中的结构只会在实例化它的对等体上旋转一个仅具有链码的docker容器。因此，当您尝试通过其他对等方调用或查询链代码时，它需要先调出容器然后执行查询。

另一种方法是通过所有支持通道中的对等体作为目标来实例化链代码。这确保了通道中的所有对等体在调用或查询之前具有容器。

如果你正在使用go-sdk，这是通过withTargets() or withTargetEndpoints()完成的：

peers = ["peer1.org1.example.com","peer1.org2.example.com"]
req := InstantiateCCRequest{Name: "name", Version: "version", Path: "path", Policy: ccPolicy}
, err := rc.InstantiateCC("mychannel", req, WithTargets(peers...))

cli调用中使用了类似的逻辑，链接实例化的man给出了（查找NOTICE --->，其中我标记了所需的标志）：

Deploy the specified chaincode to the network.

Usage:
  peer chaincode instantiate [flags]

Flags:
  -C, --channelID string               The channel on which this command should be executed
      --collections-config string      The fully qualified path to the collection JSON file including the file name
      --connectionProfile string       Connection profile that provides the necessary connection information for the network. Note: currently only supported for providing peer connection information
  -c, --ctor string                    Constructor message for the chaincode in JSON format (default "{}")
  -E, --escc string                    The name of the endorsement system chaincode to be used for this chaincode
  -h, --help                           help for instantiate
  -l, --lang string                    Language the chaincode is written in (default "golang")
  -n, --name string                    Name of the chaincode
"NOTICE--->"   --peerAddresses stringArray      The addresses of the peers to connect to
  -P, --policy string                  The endorsement policy associated to this chaincode
      --tlsRootCertFiles stringArray   If TLS is enabled, the paths to the TLS root cert files of the peers to connect to. The order and number of certs specified should match the --peerAddresses flag
  -v, --version string                 Version of the chaincode specified in install/instantiate/upgrade commands
  -V, --vscc string                    The name of the verification system chaincode to be used for this chaincode

Global Flags:
      --cafile string                       Path to file containing PEM-encoded trusted certificate(s) for the ordering endpoint
      --certfile string                     Path to file containing PEM-encoded X509 public key to use for mutual TLS communication with the orderer endpoint
      --clientauth                          Use mutual TLS when communicating with the orderer endpoint
      --connTimeout duration                Timeout for client to connect (default 3s)
      --keyfile string                      Path to file containing PEM-encoded private key to use for mutual TLS communication with the orderer endpoint
  -o, --orderer string                      Ordering service endpoint
      --ordererTLSHostnameOverride string   The hostname override to use when validating the TLS connection to the orderer.
      --tls                                 Use TLS when communicating with the orderer endpoint
      --transient string                    Transient map of arguments in JSON encoding```