how to work two seperate docker-compose files with traefik where swarm enabled

Question

I have two different docker-compose file having different services(project space) which I want to run on same swarm because I want to use traefik as reverse proxy how could I do that?

Answer 1

You have to use a common image registry and prebuild images before deploying to swarm:

first compose file:

services:
    my_service:
        build: ./my_service
        image: my-registry-host/my_service:latest
        ...

second compose file:

services:

    my_other_service:
        build: ./my_other_service
        image: my-registry-host/my_other_service:latest
        ...
    my_service:
        image: my-registry-host/my_service:latest
        ...

    traefik:
        image: traefik:v2.0
        ...

when you build the services in the first file they are uploaded to your common registry my-registry-host. An when you deploy the second file you will see that the image will be got from the common registry and stack runs as expected.