build 1

Dockerfile

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+# ── Stage 1: Build frontend ────────────────────────────────────────────────
+FROM node:20-alpine AS frontend-build
+WORKDIR /app/frontend
+
+COPY frontend/package*.json ./
+RUN npm ci
+
+COPY frontend/ ./
+RUN npm run build
+# Output lands in /app/backend/public via vite outDir
+
+# ── Stage 2: Build backend ─────────────────────────────────────────────────
+FROM node:20-alpine AS backend-build
+WORKDIR /app/backend
+
+COPY backend/package*.json ./
+RUN npm ci
+
+COPY backend/ ./
+# Copy the built frontend into backend/public before TS compile (static refs)
+COPY --from=frontend-build /app/backend/public ./public
+RUN npm run build
+
+# ── Stage 3: Runtime ───────────────────────────────────────────────────────
+FROM node:20-alpine AS runtime
+WORKDIR /app
+
+# Install production deps only
+COPY backend/package*.json ./
+RUN npm ci --omit=dev
+
+# Copy compiled backend
+COPY --from=backend-build /app/backend/dist ./dist
+
+# Copy frontend assets
+COPY --from=backend-build /app/backend/public ./public
+
+# Data volumes
+VOLUME ["/data/images", "/data/db"]
+
+ENV NODE_ENV=production
+ENV PORT=3000
+ENV DATA_DIR=/data
+
+EXPOSE 3000
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s \
+  CMD wget -qO- http://localhost:3000/api/tags || exit 1
+
+CMD ["node", "dist/index.js"]