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Dockerfile

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+FROM node:22-alpine
+
+RUN addgroup -g 1001 -S nodejs && \
+    adduser -S nodeuser -u 1001
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN npm ci --only=production && \
+    npm cache clean --force
+
+COPY index.js ./
+
+EXPOSE 3000
+
+LABEL maintainer="joris.bertomeu@gmail.com" \
+      version="1.0" \
+      description="Gateway ICS pour Home Assistant"
+
+ENV NODE_ENV=production \
+    PORT=3000
+
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1
+
+CMD ["node", "index.js"]