Don't add 127.0.0.1

Adjust readme

README.md

@@ -20,11 +20,33 @@ real_ip_recursive on;
 include /config/nginx/cf_real-ip.conf;
 ```
 
-You may also need to add this mod (and the above config changes) to every nginx based container being proxied by SWAG.
+This mod also *tries* to detect the real ip from the interfaces in the container.
 
-This mod now adds `127.0.0.1` and *tries* to add the real ip from the interfaces in the container.
+You may need to add this mod (and the above config changes) to every nginx based container being proxied by SWAG.
+
+## Cloudflare tunnels
+
+In case you use Cloudflare tunnels, real IP might be reported in containers as 127.0.0.1.
+In this case, please add below to `http` section of `nginx.conf`.
+
+From:
+
+```nginx
+real_ip_header X-Forwarded-For;
+real_ip_recursive on;
+include /config/nginx/cf_real-ip.conf;
+```
+
+to:
+
+```nginx
+real_ip_header X-Forwarded-For;
+real_ip_recursive on;
+include /config/nginx/cf_real-ip.conf;
+set_real_ip_from 127.0.0.1;
+```
 
 ## Versions
 
-* **16.01.23:** - Add 127.0.0.1 and format shell scripts.
+* **16.01.23:** - Format shell scripts.
 * **21.01.21:** - Fix bug when mod runs before internet-access.

root/etc/cont-init.d/98-cloudflare-real-ip

@@ -1,11 +1,7 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
-echo "set_real_ip_from 127.0.0.1;" >/config/nginx/cf_real-ip.conf
-
-ip route | grep -v default | awk '{print $1}' | while IFS= read -r line; do
-    echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
-done
+echo "" >/config/nginx/cf_real-ip.conf
 
 curl -s "https://api.cloudflare.com/client/v4/ips" | jq -r '.result.ipv4_cidrs[]' | while IFS= read -r line; do
     echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
@@ -15,4 +11,8 @@ curl -s "https://api.cloudflare.com/client/v4/ips" | jq -r '.result.ipv6_cidrs[]
     echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
 done
 
+ip route | grep -v default | awk '{print $1}' | while IFS= read -r line; do
+    echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
+done
+
 chown abc:abc /config/nginx/cf_real-ip.conf

root/etc/s6-overlay/s6-rc.d/init-mod-swag-cloudflare-real-ip-setup/run

@@ -1,11 +1,7 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
-echo "set_real_ip_from 127.0.0.1;" >/config/nginx/cf_real-ip.conf
-
-ip route | grep -v default | awk '{print $1}' | while IFS= read -r line; do
-    echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
-done
+echo "" >/config/nginx/cf_real-ip.conf
 
 curl -s "https://api.cloudflare.com/client/v4/ips" | jq -r '.result.ipv4_cidrs[]' | while IFS= read -r line; do
     echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
@@ -15,4 +11,8 @@ curl -s "https://api.cloudflare.com/client/v4/ips" | jq -r '.result.ipv6_cidrs[]
     echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
 done
 
+ip route | grep -v default | awk '{print $1}' | while IFS= read -r line; do
+    echo "set_real_ip_from ${line};" >>/config/nginx/cf_real-ip.conf
+done
+
 chown abc:abc /config/nginx/cf_real-ip.conf