Update Dockerfile

Author: sarpedondev

Dockerfile

@@ -2,7 +2,6 @@ FROM nginx:alpine
 RUN apk add --no-cache curl
 RUN rm /etc/nginx/conf.d/default.conf
 
-# This heredoc syntax is correct for Dockerfiles
 COPY <<EOF /etc/nginx/conf.d/gitbook-proxy.conf
 upstream gitbook {
 server nebulaclient.gitbook.io:443;
@@ -15,35 +14,27 @@ server {
     resolver 8.8.8.8 valid=300s;
     resolver_timeout 5s;
 
-    # --- START: TARGETED FIX ---
-    # This block specifically targets sitemap.xml and robots.txt IN ANY DIRECTORY.
-    # The regex now correctly matches paths that END WITH sitemap.xml or robots.txt.
-    location ~ /(sitemap\.xml|robots\.txt|sitemap-pages\.xml)$ {
+    location = /robots.txt {
+        rewrite ^ /nebula/robots.txt last;
+    }
+
+    location ~ /(sitemap\.xml|robots\.txt)$ {
         proxy_pass https://nebulaclient.gitbook.io;
         proxy_ssl_server_name on;
         proxy_ssl_verify off;
 
-        # THE FIX: Request uncompressed content from the upstream
-        # so that sub_filter can read and modify it.
         proxy_set_header Accept-Encoding "";
 
-        # Necessary proxy headers for the request to succeed
         proxy_set_header Host nebulaclient.gitbook.io;
         proxy_set_header X-Real-IP \$remote_addr;
         proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto https;
 
-        # Perform the URL substitution on the plain text/xml content
         sub_filter_once off;
         sub_filter_types text/xml application/xml text/plain;
         sub_filter 'https://nebulaclient.gitbook.io' 'https://\$host';
     }
-    # --- END: TARGETED FIX ---
-
-
-    # --- YOUR ORIGINAL CONFIGURATION (UNCHANGED) ---
 
-    # Handle GitBook API calls that might contain URLs
     location ~* \.(json|js|txt|xml)$ {
         proxy_pass https://nebulaclient.gitbook.io;
         proxy_ssl_server_name on;
@@ -56,7 +47,6 @@ server {
         proxy_set_header X-Forwarded-Host \$host;
         proxy_set_header User-Agent \$http_user_agent;
 
-        # More aggressive filtering for API responses
         sub_filter_once off;
         sub_filter_types application/xml application/json application/javascript text/javascript text/plain;
         sub_filter 'https://nebulaclient.gitbook.io' 'https://\$host';
@@ -81,7 +71,6 @@ server {
         proxy_set_header X-Forwarded-Port \$server_port;
         proxy_set_header User-Agent \$http_user_agent;
 
-        # More comprehensive redirect handling
         proxy_redirect https://nebulaclient.gitbook.io/ https://\$host/;
         proxy_redirect https://nebulaclient.gitbook.io https://\$host;
         proxy_redirect http://nebulaclient.gitbook.io/ https://\$host/;
@@ -95,11 +84,9 @@ server {
         proxy_http_version 1.1;
         proxy_set_header Connection "";
 
-        # Enhanced content filtering for all content types
         sub_filter_once off;
         sub_filter_types application/xml text/plain text/html text/css text/javascript application/javascript application/json text/xml application/xml;
 
-        # Replace various URL patterns
         sub_filter 'https://nebulaclient.gitbook.io' 'https://\$host';
         sub_filter 'http://nebulaclient.gitbook.io' 'https://\$host';
         sub_filter 'nebulaclient.gitbook.io' '\$host';
@@ -109,7 +96,6 @@ server {
         sub_filter "http:\\/\\/nebulaclient.gitbook.io" "https:\\/\\/\$host";
         sub_filter "nebulaclient\\.gitbook\\.io" "\$host";
 
-        # Handle GitBook specific redirects
         proxy_intercept_errors on;
         error_page 301 302 307 = @handle_redirect;
     }
@@ -118,18 +104,16 @@ server {
         set \$redirect_location \$upstream_http_location;
         set \$redirect_host '';
 
-        # Extract the path from the redirect location
         if (\$redirect_location ~ "^https?://nebulaclient\.gitbook\.io(.*)") {
             set \$redirect_path \$1;
             return 302 https://\$host\$redirect_path;
         }
 
-        # Fallback for other redirects
         return 302 https://\$host/;
     }
 
     access_log /var/log/nginx/access.log;
-    error_log /var/log/nginx/error.log debug;
+    error_log /var/log/nginx/error.log;
 }
 EOF