Dockerfile

# Build stage
FROM node:20-alpine AS builder

WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build

# Production stage
FROM nginx:alpine

# Copy files
COPY --from=builder /app/dist /usr/share/nginx/html/

# Custom nginx config with COEP/COOP/CORP headers
RUN echo 'server { \
    listen 7860; \
    location / { \
        root /usr/share/nginx/html; \
        index index.html; \
        try_files $uri $uri/ /index.html; \
        add_header Cross-Origin-Opener-Policy same-origin; \
        add_header Cross-Origin-Embedder-Policy require-corp; \
        add_header Cross-Origin-Resource-Policy cross-origin; \
        add_header Cache-Control "no-cache, no-store, must-revalidate"; \
    } \
    location ~* \.(js|css|wasm)$ { \
        root /usr/share/nginx/html; \
        add_header Cross-Origin-Opener-Policy same-origin; \
        add_header Cross-Origin-Embedder-Policy require-corp; \
        add_header Cross-Origin-Resource-Policy cross-origin; \
        add_header Cache-Control "no-cache, must-revalidate"; \
    } \
}' > /etc/nginx/conf.d/default.conf

EXPOSE 7860