Update Dockerfile

Dockerfile

@@ -1,24 +1,92 @@
+# Dockerfile
 FROM python:3.9-slim
 
+EXPOSE 8501
+
 WORKDIR /app
 
-# Install nginx
-RUN apt-get update && apt-get install -y nginx
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    software-properties-common \
+    git \
+    nginx \
+    && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements and install Python dependencies
+# Copy requirements and install Python packages
 COPY requirements.txt .
-RUN pip install -r requirements.txt
+RUN pip3 install -r requirements.txt
+
+# Copy the Streamlit app and configuration
+COPY . .
 
-# Copy the Streamlit app
-COPY app.py .
+# Create Streamlit config directory and add config.toml
+RUN mkdir -p /root/.streamlit
+RUN echo "\
+[server]\n\
+enableCORS = true\n\
+enableXsrfProtection = false\n\
+" > /root/.streamlit/config.toml
 
-# Copy nginx configuration
-COPY nginx.conf /etc/nginx/nginx.conf
+# Create Nginx configuration
+RUN echo "\
+events {\n\
+    worker_connections 1024;\n\
+}\n\
+http {\n\
+    upstream streamlit {\n\
+        server localhost:8501;\n\
+    }\n\
+    server {\n\
+        listen 80;\n\
+        server_name localhost;\n\
+\n\
+        # CORS configuration\n\
+        add_header 'Access-Control-Allow-Origin' '*' always;\n\
+        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;\n\
+        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;\n\
+        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;\n\
+\n\
+        location / {\n\
+            proxy_pass http://streamlit;\n\
+            proxy_http_version 1.1;\n\
+            proxy_set_header Upgrade \$http_upgrade;\n\
+            proxy_set_header Connection 'upgrade';\n\
+            proxy_set_header Host \$host;\n\
+            proxy_cache_bypass \$http_upgrade;\n\
+            proxy_set_header X-Real-IP \$remote_addr;\n\
+            proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;\n\
+\n\
+            # CORS preflight\n\
+            if (\$request_method = 'OPTIONS') {\n\
+                add_header 'Access-Control-Allow-Origin' '*';\n\
+                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';\n\
+                add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization';\n\
+                add_header 'Access-Control-Max-Age' 1728000;\n\
+                add_header 'Content-Type' 'text/plain; charset=utf-8';\n\
+                add_header 'Content-Length' 0;\n\
+                return 204;\n\
+            }\n\
+        }\n\
+    }\n\
+}" > /etc/nginx/nginx.conf
 
 # Create start script
-RUN echo '#!/bin/bash\nservice nginx start\nstreamlit run app.py' > start.sh
-RUN chmod +x start.sh
+RUN echo '#!/bin/bash\n\
+service nginx start\n\
+streamlit run streamlit.py --server.port=8501 --server.address=0.0.0.0\n\
+' > /app/start.sh
+RUN chmod +x /app/start.sh
+
+# Create a sample Streamlit app
+RUN echo "\
+import streamlit as st\n\
+\n\
+st.title('Sample Streamlit App with CORS')\n\
+st.write('Hello, this is a sample Streamlit app with CORS enabled!')\n\
+" > /app/streamlit.py
 
-EXPOSE 7860
+# Create requirements.txt if not exists
+RUN if [ ! -f requirements.txt ]; then echo "streamlit>=1.0.0" > requirements.txt; fi
 
-CMD ["./start.sh"]
+ENTRYPOINT ["/app/start.sh"]