Connecting 2 docker compose Files with a Docker Network Bridge

I had trouble with 2 different docker compose files being unable to communicate with each other when testing Langfuse with a LiteLLM Proxy. To solve this I connected the 2 on the same docker network.

Create an external network with docker:

docker network create custom_network

Within the docker compose files:

1. Need to configure each service to use the network:

   networks:
     - networkBridge
   

2. Then at the end of the docker compose refer to the network:

   networks:
     networkBridge:
    name: custom_network
    external: true