feat(fabric): support for chaincode as an external service

[jagpreetsinghsasan]

Describe the solution you'd like Having external chaincode will help in resolving issues with Kubernetes and will also help in chaincode management (by operators and devs) For more reference, https://hyperledger-fabric.readthedocs.io/en/release-2.2/cc_service.html

[alvaropicazo]

Currently, chaincode is installed on every existing peer. With Fabric v2.2, we are able to deploy chaincode outside of Fabric, so it is independent of the peer. Having the availability of the external builders, we will be able to customize the build process, and running it as an external service, this build process allows us to specify the endpoint information of the server where the chaincode is running.

A possible solution to this could be specifying in the network.yaml file that we wish to use chaincode as an external service. Other steps could be similar to the ones described in the following example: https://github.com/hyperledger/fabric-samples/tree/master/asset-transfer-basic/chaincode-external

[mbrandenburger]

I am very interested in this.

I would like to demonstrate the deployment of Fabric Private Chaincode (FPC) with BAF. FPC deployment relies on Fabric External Chaincode feature. I've already prepared a tutorial that shows how to step a Fabric network using K8s (minikube) and install and run a FPC chaincode. Please, have a look my tutorial and let's see if we can "translate" it to use BAF. Thank you!

[arsulegai]

@mbrandenburger most of these steps are covered in the feature developed. However, only place which I see edits are needed is the way configuration information is passed to the chaincode container. i.e. https://github.com/hyperledger-labs/fabric-private-chaincode/blob/94f80f81c47cdc71058cd773751b502948b0d5f0/integration/k8s/README.md#start-chaincode-container

Current code has to be modified a bit over here.

[suvajit-sarkar]

Hi, any update on code commit for this ?

[sownak]

Will be looked into this by @arsulegai ..

[suvajit-sarkar]

Hi @arsulegai, any updates on this issue ?

[manikanta-darsi]

Please assign it to me.

[arsulegai]

@manikanta-darsi please let me know if we can connect on this topic. I have the feature implemented but on older version of the codebase. My discord ID is arsulegai#7968 and we can discuss in #bevel channel over there.

[mgCepeda]

I'll take this issue

[suvajit-sarkar]

Hi @adityajoshi12, any progress of this ?

[sownak]

Closed with #2293 merge

[arsulegai]

Closed with #2293 merge

Awesome! Thanks @sownak