build 2

Dockerfile

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+# ── Stage 1: Build frontend ───────────────────────────────────────────────────
+FROM node:20-slim AS frontend-builder
+
+WORKDIR /build/frontend
+COPY frontend/package*.json ./
+RUN npm ci
+COPY frontend/ ./
+RUN npm run build
+
+# ── Stage 2: Build backend ────────────────────────────────────────────────────
+FROM node:20-slim AS backend-builder
+
+RUN apt-get update && apt-get install -y \
+    python3 make g++ \
+    --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /build/backend
+COPY backend/package*.json backend/tsconfig.json ./
+RUN npm ci
+COPY backend/src ./src
+RUN npm run build && npm prune --production
+
+# ── Stage 3: Runtime ─────────────────────────────────────────────────────────
+FROM node:20-slim
+
+RUN apt-get update && apt-get install -y \
+    nginx \
+    chromium \
+    fonts-freefont-ttf \
+    supervisor \
+    --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium
+ENV NODE_ENV=production
+ENV PORT=3001
+ENV DATABASE_PATH=/app/data/tracker.db
+
+WORKDIR /app
+
+# Backend
+COPY --from=backend-builder /build/backend/dist      ./backend/dist
+COPY --from=backend-builder /build/backend/node_modules ./backend/node_modules
+COPY backend/package.json ./backend/
+
+# Frontend → nginx web root
+COPY --from=frontend-builder /build/frontend/dist /usr/share/nginx/html
+
+# Config files
+COPY nginx.conf       /etc/nginx/conf.d/default.conf
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+
+# Persistent data volume
+VOLUME ["/app/data"]
+
+EXPOSE 8080
+CMD ["/usr/bin/supervisord", "-n", "-c", "/etc/supervisor/conf.d/supervisord.conf"]