nginx conf file for setting actual IPs behind cloudflare

cloudflare.conf

set_real_ip_from 103.21.244.0/22;
set_real_ip_from 103.22.200.0/22;
set_real_ip_from 103.31.4.0/22;
set_real_ip_from 104.16.0.0/12;
set_real_ip_from 108.162.192.0/18;
set_real_ip_from 131.0.72.0/22;
set_real_ip_from 141.101.64.0/18;
set_real_ip_from 162.158.0.0/15;
set_real_ip_from 172.31.0.0/18;
set_real_ip_from 172.64.0.0/13;
set_real_ip_from 173.245.48.0/20;
set_real_ip_from 188.114.96.0/20;
set_real_ip_from 190.93.240.0/20;
set_real_ip_from 197.234.240.0/22;
set_real_ip_from 198.41.128.0/17;
set_real_ip_from 2400:cb00::/32;
set_real_ip_from 2606:4700::/32;
set_real_ip_from 2803:f800::/32;
set_real_ip_from 2405:b500::/32;
set_real_ip_from 2405:8100::/32;
set_real_ip_from 2c0f:f248::/32;
set_real_ip_from 2a06:98c0::/29;

# use any of the following two
real_ip_header CF-Connecting-IP;
#real_ip_header X-Forwarded-For;

https://support.cloudflare.com/hc/en-us/articles/200170706-How-do-I-restore-original-visitor-IP-with-Nginx-

You may want to automatic generate these.
https://github.com/chevereto/docker/blob/4.0/scripts/system/cloudflare.sh
https://github.com/chevereto/vps/blob/4.0/common/cf-remoteip.sh

You may want to automatic generate these.
https://github.com/chevereto/docker/blob/4.0/scripts/system/cloudflare.sh
https://github.com/chevereto/vps/blob/4.0/common/cf-remoteip.sh

I would recommend doing that yes! Nice job on your bash scripts.