# Production nginx image for serving Slate documentation
# Built by CI after Slate generates static HTML

FROM nginx:alpine

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

# Copy built static files from Slate
COPY build/ /usr/share/nginx/html/

# Custom nginx config for SPA-style routing
RUN cat > /etc/nginx/conf.d/default.conf << 'EOF'
server {
    listen 80;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    # Enable gzip compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml text/javascript;
    gzip_min_length 1000;

    # Cache static assets
    location ~* \.(css|js|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # Serve index.html for all routes (SPA fallback)
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Health check endpoint
    location /health {
        access_log off;
        return 200 "OK";
        add_header Content-Type text/plain;
    }
}
EOF

EXPOSE 80

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