Deploying a Hyperledger Composer blockchain business network to Hyperledger Fabric (multiple organizations)

Question

I implemented hyperledger composer tutorial and created a simple business network definition. Then I deployed it through composer and implemented it's rest APIs through composer-rest-server. Now I want to add one more peer to it on a different machine (PC) which can access the Blockchain I previously created. I followed this Deploying a Hyperledger Composer blockchain business network to Hyperledger Fabric (multiple organizations) , but in this tutorial, the network is configured using docker containers, with both organizations' fabric networks, on the same machine.

My Question:
1. What are the differences between multiple organizations using docker containers (on the same machine) and using multiple machines (PC)?
2. How to implement this with multiple machines (PC) using Hyplerledger Composer?

Thank you in advance!

Answer 1

As answered on Hyperledger Rocket Chat:

The tutorial you refer to (Multi Organisation on one PC) is used to illustrate the Composer Aspects of a Multi Organisation - Multi Peer configuration. It is not necessary to use Docker Containers to build a Fabric, but it is easier and the majority choose to do it that way.

It is easy for Composer to work with a Multi Machine setup - you just create a different connection.json file to 'point' to the various addresses! The real question is how to implement a Multi-Org Hyperledger Fabric.

Docker Compose is the tool used for a Development Fabric and for the tutorials and it provides networking between the component containers, but Docker Compose is only really intended for a single machine. To work with multiple machines Kubernetes or Docker Swarm are better choices (or cloud hosting) and certainly something other than Docker Compose is required for production. There are however a couple of tutorials that can be used for learning or PoC - I haven't tried them, but others in the community have: https://www.skcript.com/svr/setting-up-a-blockchain-business-network-with-hyperledger-fabric-and-composer-running-in-multiple-physical-machine/ https://medium.com/@wahabjawed/hyperledger-fabric-on-multiple-hosts-a33b08ef24f