Initial commit

Dockerfile

@@ -0,0 +1,54 @@
+# syntax=docker/dockerfile:1.6
+
+FROM node:20-bookworm-slim AS base
+WORKDIR /app
+ENV NODE_ENV=production
+
+# Install dependencies first to leverage Docker layer caching
+COPY package.json package-lock.json ./
+
+FROM base AS build
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+       python3 \
+       make \
+       g++ \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install production deps (will compile native modules like better-sqlite3/serialport if needed)
+RUN npm ci --omit=dev
+
+# Copy source
+COPY . .
+
+FROM node:20-bookworm-slim AS runtime
+WORKDIR /app
+ENV NODE_ENV=production
+
+# Runtime OS packages for printing via pdf-to-printer (lp/lpr)
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+       cups-client \
+       cups-bsd \
+       libcups2 \
+       fonts-dejavu-core \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy built app with node_modules from the build stage
+COPY --from=build /app /app
+
+# Create volumes for persistent data and user uploads
+VOLUME ["/app/data", "/app/public/uploads"]
+
+# Ensure non-root runtime; change ownership so the node user can write to volumes
+RUN chown -R node:node /app
+USER node
+
+EXPOSE 3000
+
+HEALTHCHECK --interval=30s --start-period=30s --timeout=5s --retries=3 \
+  CMD node -e "fetch('http://127.0.0.1:'+(process.env.PORT||3000)+'/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"
+
+CMD ["npm", "start"]
+
+