SvelteKit production environment variables

Reproduction repository for undefined environment variables in production build of SvelteKit when providing through Docker.

Requirements

• Docker
• Docker-Compose

Usage

1. Start up the application in development mode:

   docker-compose -f docker-compose.dev.yml up --build -d
   

2. Visit http://localhost and verify that the value of the specified environment variable is available.
3. Terminate the application:

   docker-compose -f docker-compose.dev.yml down
   

4. Start up the application in production mode:

   docker-compose up --build -d
   

5. Visit http://localhost to find the undefined value of the environment variable.
6. To terminate the application in production mode:

   docker-compose down
   

References

• SvelteKit issue
• Vite PR