`app` service missing from server docker-compose.yml

[vsilent]

Description

When deploying with type: custom and an app section, the generated server-side docker-compose.yml only contains services entries — the main app service is missing.

Affected Projects

GoAccess

Steps to Reproduce

1. Define an app with type: custom in stacker.yml:

   app:
     type: custom
     image: nginx:alpine
     ports:
       - "8080:80"

2. Deploy to cloud or existing server
3. Check the generated docker-compose.yml on the server

Expected Behavior

Both the app and services containers should be listed in the compose file.

Actual Behavior

Only services entries appear. The main app can only be served by additional configuration.

Environment

• Stacker CLI version: latest
• Deploy target: cloud, server