Make use of environment variables within nginx config

[Raruto]

As per v3.4, some of these values must be updated manually within the following files:

• /config/nginx/django.conf
• /config/nginx/django_conf.ssl

For example:

g3w-suite-docker/config/nginx/django.conf

Lines 67 to 69 in e435dcc

	# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
	# NOTE: change server_name according to your real hostname
	server_name dev.g3wsuite.it;

it might just be read from the .env file:

g3w-suite-docker/.env.example

Lines 1 to 2 in e435dcc

	# Public hostmane
	WEBGIS_PUBLIC_HOSTNAME=dev.g3wsuite.it

Doing so may also make it easier to set that variable for local development, eg:

WEBGIS_PUBLIC_HOSTNAME=localhost

More info:

• How can I use environment variables in Nginx.conf?
• Using environment variables in nginx configuration (new in 1.19)