# Simple static frontend for MVP
# Pinned to a patched nginx release (>= 1.31.1) to remediate the "poolslip"
# advisory; the floating nginx:alpine tag previously shipped vulnerable 1.31.0.
FROM nginx:1.31.1-alpine

# Remove default nginx website
RUN rm -rf /usr/share/nginx/html/*

# Copy static MVP HTML
COPY public/mvp.html /usr/share/nginx/html/index.html

# Copy nginx configuration
COPY nginx.conf /etc/nginx/conf.d/default.conf

# Create non-root user
RUN addgroup -g 101 -S nginx && \
    adduser -S -D -H -u 101 -h /var/cache/nginx -s /sbin/nologin -G nginx -g nginx nginx 2>/dev/null || true

# Change ownership
RUN chown -R nginx:nginx /usr/share/nginx/html /var/cache/nginx /var/log/nginx /etc/nginx

# Switch to non-root user  
USER nginx

# Expose port
EXPOSE 3000

# Start nginx
CMD ["nginx", "-g", "daemon off;"]