The fact that you need to manually run php artisan serve suggests that the entrypoint or CMD in your Docker container isn't properly configured to automatically run the Laravel server.

• In your docker-compose.yml, remove the entrypoint field, since you're already handling that in the Dockerfile.

• In your Dockerfile, you've set CMD php artisan serve --host=0.0.0.0 --port=8000. You may want to make sure that this command is being executed properly, especially after composer install.