added certibot installation to nginx docker file

nginx/Dockerfile

@@ -1,5 +1,16 @@
 FROM nginx:latest
 
+# Install Certbot and dependencies
+RUN apt-get update && \
+    apt-get install -y certbot python3-certbot-nginx && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Create necessary directories for Let's Encrypt challenge
+RUN mkdir -p /usr/share/nginx/html/.well-known/acme-challenge && \
+    chown -R www-data:www-data /usr/share/nginx/html/.well-known && \
+    chmod -R 755 /usr/share/nginx/html/.well-known
+
 # Remove default Nginx configuration files
 RUN rm /etc/nginx/nginx.conf
 RUN rm /etc/nginx/conf.d/default.conf