Visitor sign in kiosk: multi-site, badge printing, WWCC expiry warnings, admin accounts with 2FA

Dockerfile

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+# better-sqlite3 is a native module, so dependencies are compiled in a build stage
+# and only the finished node_modules are carried into the runtime image.
+FROM node:22-bookworm-slim AS deps
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends python3 make g++ ca-certificates \
+ && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY package.json ./
+RUN npm install --omit=dev
+
+FROM node:22-bookworm-slim
+ENV NODE_ENV=production
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends \
+      openssl ca-certificates tini util-linux \
+      # Fonts for the server-rendered badge, and brother_ql to drive the label printer.
+      fonts-liberation python3 python3-pip \
+ && pip3 install --break-system-packages --no-cache-dir "brother_ql==0.9.4" \
+ && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY package.json ./
+COPY src ./src
+COPY public ./public
+COPY scripts ./scripts
+COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh \
+ && mkdir -p /data/photos /data/certs \
+ && chown -R node:node /data /app
+
+# Starts as root only long enough to fix ownership of a bind-mounted /data,
+# then the entrypoint drops to the node user before running anything.
+VOLUME ["/data"]
+EXPOSE 3000 3001
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
+  CMD node scripts/healthcheck.mjs
+
+ENTRYPOINT ["/usr/bin/tini", "--", "/usr/local/bin/docker-entrypoint.sh"]
+CMD ["node", "src/server.js"]