Create Dockerfile

Dockerfile

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+# Stage 1: Build
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+# Clone ChartDB source
+RUN apk add --no-cache git && \
+    git clone https://github.com/chartdb/chartdb.git .
+
+RUN npm install
+
+# Pass the OpenAI key at build time
+ARG OPENAI_API_KEY
+ENV VITE_OPENAI_API_KEY=$OPENAI_API_KEY
+
+RUN npm run build
+
+# Stage 2: Serve with NGINX
+FROM nginx:alpine
+
+# HF Spaces requires non-root user with uid 1000
+RUN adduser -D -u 1000 user
+
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Custom nginx config to listen on port 80
+RUN echo 'server { \
+    listen 80; \
+    location / { \
+        root /usr/share/nginx/html; \
+        try_files $uri /index.html; \
+    } \
+}' > /etc/nginx/conf.d/default.conf
+
+# Fix permissions
+RUN chown -R user:user /usr/share/nginx/html && \
+    chown -R user:user /var/cache/nginx && \
+    chown -R user:user /var/log/nginx && \
+    touch /var/run/nginx.pid && \
+    chown user:user /var/run/nginx.pid
+
+USER user
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]