Features:
- Health endpoint now returns git_commit SHA and version
- Auto-detects git commit during Docker build
- Falls back to 'unknown' if git info unavailable
- Allows AI agents to verify deployed version
Changes:
1. server.js: Add git_commit and version to /health response
2. Dockerfile: Add git installation and commit detection
3. Dockerfile: Accept GIT_COMMIT and APP_VERSION build args
4. docker-compose.yml: Pass build args and env vars for versioning
5. README.md: Document version tracking in health endpoint
Example response:
{
"status": "healthy",
"postgres": "connected",
"redis": "connected",
"timestamp": "2026-02-14T10:30:00.000Z",
"git_commit": "eb6b6e0a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6q",
"version": "1.0.0"
}
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
35 lines
918 B
Docker
35 lines
918 B
Docker
FROM node:18-alpine
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# Build arguments for versioning
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ARG GIT_COMMIT=unknown
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ARG APP_VERSION=1.0.0
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WORKDIR /app
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# Install curl for healthcheck and git for commit info
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RUN apk add --no-cache curl git
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# Copy package files first for layer caching
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COPY package*.json ./
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RUN npm install --production
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# Copy app code (changes more often — below the cached layer)
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COPY . .
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# Try to get git commit if not provided and .git exists
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RUN if [ "$GIT_COMMIT" = "unknown" ] && [ -d .git ]; then \
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GIT_COMMIT=$(git rev-parse HEAD 2>/dev/null || echo "unknown"); \
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fi && \
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echo "export GIT_COMMIT=${GIT_COMMIT}" >> /etc/profile.d/git-version.sh
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# Set environment variables for runtime
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ENV GIT_COMMIT=${GIT_COMMIT} \
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APP_VERSION=${APP_VERSION}
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EXPOSE 3000
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HEALTHCHECK --interval=10s --timeout=3s --start-period=5s --retries=2 \
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CMD curl -f http://localhost:3000/health || exit 1
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CMD ["node", "server.js"]
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