add caddy instructions

Author: CodeShellDev

docs/reverse-proxy/caddy/caddy.md

@@ -0,0 +1,29 @@
+---
+title: Caddy
+---
+
+# Caddy
+
+Want to use [**caddy**](https://github.com/caddyserver/caddy) as your **Reverse Proxy**?
+These instructions will take you through the steps.
+
+## Prerequisites
+
+Before moving on you must have
+
+- some knowledge of **caddy**
+- already deployed **caddy**
+
+## Installation
+
+Create or update your `Caddyfile` file and mount it to `/etc/caddy/Caddyfile` in your caddy container.
+
+```conf
+{{{ #://./examples/Caddyfile }}}
+```
+
+Then spin up your stack:
+
+```bash
+docker compose up -d
+```

docs/reverse-proxy/caddy/examples/Caddyfile

@@ -0,0 +1,18 @@
+# Replace with your actual domain
+domain.com {
+    # Use whatever network alias you set in the docker-compose file
+    reverse_proxy secured-signal-api:8880
+
+    # Optional: basic security headers
+    header {
+        Strict-Transport-Security "max-age=31536000;"
+        X-Content-Type-Options "nosniff"
+        X-Frame-Options "DENY"
+        Referrer-Policy "no-referrer"
+    }
+}
+
+# HTTP redirect to HTTPS
+http://domain.com {
+    redir https://{host}{uri} permanent
+}

docs/reverse-proxy/nginx/examples/nginx.conf

@@ -4,7 +4,7 @@ server {
 
     # Add allowed hostnames which nginx should respond to
     # `_` for any
-    server_name localhost;
+    server_name domain.com;
 
     ssl_certificate /etc/nginx/ssl/cert.crt;
     ssl_certificate_key /etc/nginx/ssl/cert.key;
@@ -23,6 +23,6 @@ server {
 # Redirect HTTP to HTTPs
 server {
     listen 80;
-    server_name localhost;
+    server_name domain.com;
     return 301 https://$host$request_uri;
 }