Can you elaborate by what do you mean by a config file? Is it a web server, or a website! Provide more context so that the community can help you

The best way to share the same config file across different services is to use a monorepo structure in your Git repository. This allows all your services to access common files from a single, shared source.

## Option 1: Use a Monorepo (Recommended)

This approach involves placing all your services and the shared configuration file within the same Git repository. When you deploy, Railway clones the entire repository for each service, making the shared file available to all of them.

1. Structure Your Git Repository Organize your project with a dedicated shared directory for common files.

   my-railway-project/
   ├── services/
   │   ├── service-a/      # Code for your first service
   │   │   └── ...
   │   └── service-b/      # Code for your second service
   │       └── ...
   ├── shared/
   │   └── config.yml    # <-- Your shared config file lives here
   └── ...
   

2. Configure Your Services in Railway For each service (service-a, service-b), you need to tell Railway where its root is.

   • Go to the service's Settings tab.

   • In the Root Directory field, enter the path to that specific service (e.g., services/service-a).

3. Access the File in Your Code From your application code, you can now access the shared config file using a relative path. For example, from within service-a, the path would be ../../shared/config.yml.

## Option 2: Use Shared Variables (Alternative for Pro Plan)

Since you're on a Pro plan, you can use Shared Variables. This method is for sharing the content of the file rather than the file itself.

1. Copy the entire content of your config.yml.

2. In your Railway project, go to Settings > Variables and click on the Shared tab.

3. Create a new variable (e.g., SHARED_CONFIG_FILE) and paste the file's content as the value.

4. In each service's startup command or script, write the content of this environment variable to a file before your application starts.

   For example, in a startup script (startup.sh):

   Bash

   #!/bin/sh
   
   # Recreate the config file from the shared environment variable
   echo "$SHARED_CONFIG_FILE" > /app/config.yml
   
   # Now start the main application
   exec your-original-start-command
   

This method is useful for managing configuration centrally in the Railway UI but can be less convenient for large or complex files. For most use cases, the monorepo approach is cleaner.