Combine multiple applications into single binary

Question

Suppose I have four applications:

1. http-gateway
2. NATS
3. Business Logic Client
4. Business Logic Server

Gateway <--> NATS <---> B.L.

My project structure is as follows:

nats-cluster\
  cmd\
    gateway\gatway.go
    blclient\blclient.go
    blserver\blserver.go
  gateway\
  blclient\
  blserver\

Currently, I have to run four of them separately and only then they can talk with each other. Gateway and BLclient use request-reply pattern while blclient uses grpc to exchange messages with blserver . I wanted to know if there is any method to generate a single binary in Go so that the application can be run through a single binary.

Is there any way to combine multiple app binaries into a single one in Go?

Answer 1

I embed the NATS server in the Simple IoT application. Here is how I do it:

https://github.com/simpleiot/simpleiot/blob/master/cmd/siot/main.go#L452

https://github.com/simpleiot/simpleiot/blob/master/natsserver/nats-server.go

Works great and super easy to do.

For some applications, it makes sense to bundle everything in one Go application as deployment is much simpler.