Coolify's HTTP health check hits localhost:3000 from the host — but the container port is only reachable inside the Docker network via Traefik. Docker's own HEALTHCHECK runs inside the container where localhost works. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
18 lines
296 B
Docker
18 lines
296 B
Docker
FROM node:20-alpine
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RUN apk add --no-cache curl
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WORKDIR /app
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COPY package*.json ./
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RUN npm ci --omit=dev
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COPY src/ ./src/
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EXPOSE 3000
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HEALTHCHECK --interval=15s --timeout=5s --start-period=30s --retries=3 \
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CMD curl -f http://localhost:3000/health || exit 1
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CMD ["node", "src/index.js"]
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