Configure Nette to use trust HTTP proxy when running in docker

common.neon

# docker is apparently using the range of 172.16.0.0/12 for networking by default
#
# and Nette by default routes and redirects based on remote addresses in $_SERVER,
# which means that it redirects using the internal ports, e.g., 8080, which are in
# most cases different from mapped ports
#
# though Nette can be instructed to trust the forwarded values, using its http.proxy
# configuration, to use the forwarded values (in routing and redirects) the remote
# has to be specified as a trusted proxy
#
# however the remote IP can vary (unless configured differently) between service runs
# which makes any static configuration unreliable, luckily http.proxy supports CIDR
# notation thus a range of addresses can be specified

http:
	proxy: 172.16.0.0/12