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"]