feat: added cloudflare real ip unmasking

nginx/Dockerfile

@@ -10,8 +10,11 @@ WORKDIR /app
 
 # Copy config file
 RUN rm /etc/nginx/conf.d/default.conf
+
 COPY nginx.conf /etc/nginx/
 
+COPY cloudflare.metaploy.conf /etc/nginx/sites-enabled/
+
 # Set up the watcher.
 COPY watch_reload.sh ./
 

nginx/cloudflare.metaploy.conf

@@ -0,0 +1,35 @@
+###################### Cloudflare masks real IPs #########################
+# We are using cloudflare for DNS management                             #
+# Cloudflare masks the real ip of the user with its ips                  #
+# Here we are specifying cloudflare to provide with the user's actual ip #
+# via sending a special header.                                          #
+##########################################################################
+
+# IPv4
+set_real_ip_from 173.245.48.0/20;
+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 141.101.64.0/18;
+set_real_ip_from 108.162.192.0/18;
+set_real_ip_from 190.93.240.0/20;
+set_real_ip_from 188.114.96.0/20;
+set_real_ip_from 197.234.240.0/22;
+set_real_ip_from 198.41.128.0/17;
+set_real_ip_from 162.158.0.0/15;
+set_real_ip_from 104.16.0.0/13;
+set_real_ip_from 104.24.0.0/14;
+set_real_ip_from 172.64.0.0/13;
+set_real_ip_from 131.0.72.0/22;
+set_real_ip_from 172.19.0.0/16;
+
+# IPv6
+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 2a06:98c0::/29;
+set_real_ip_from 2c0f:f248::/32;
+
+real_ip_header CF-Connecting-IP;