set prod to environment and the .env.local.php

[ziat1988]

In order to see the app in prod mode, I do this in docker-compose.prod.yml;

services:
  php:
    environment:
      APP_SECRET: ChangeMe
      APP_ENV : prod
      SERVER_NAME: localhost

Then I run docker compose -f docker-compose.yml -f docker-compose.prod.yml up -d. It works and I can see I'm in production mode with php bin/console about.

Then, back in the .env, I see the instruction state that Run "composer dump-env prod" to compile .env files for production use.
So my question is : what is the way to set the production mode for deploy? Should I just have any variable in docker.compose.prod.yml or I should run composer dump-env prod to generate .env.local.php and have the variables in that file? I'm really confusing about the environment with docker and .env file.

[maxhelias]

It's depends on your setup. You can set environment variables with the command composer dump-env prod to prevent your application to process the .env.* files on every request, in your Nginx configuration or via other methods provided by your hosting service.