| 123456789101112131415161718192021222324252627 | FROM node:18-slim# add curl for healthcheckRUN apt-get update \    && apt-get install -y --no-install-recommends \    curl \    tini \    && rm -rf /var/lib/apt/lists/*WORKDIR /app# have nodemon available for local dev use (file watching)RUN npm install -g nodemonCOPY package*.json ./RUN npm ci \ && npm cache clean --force \ && mv /app/node_modules /node_modulesCOPY . .ENV PORT 80EXPOSE 80ENTRYPOINT ["/usr/bin/tini", "--"]CMD ["node", "server.js"]
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