containers / Node.js CLI
healthcheck-gen
Generate a Docker health check from the image, command, and exposed port.
healthcheck-gen reads a Dockerfile and proposes a HEALTHCHECK instruction, a Compose block, or JSON output. It understands common application and service images and provides a matching endpoint snippet when it can infer a framework.
verified public Dockerfile
A Node slim image gets a probe its runtime can actually execute.
The tool inspected the release-intel-mcp Dockerfile and detected Node 22 slim, Express, and port 3000 before choosing the built-in fetch API.
observed output
image node:22-slimframework expressport 3000probe node fetch
what it exposes
Capabilities
- Inspect the final stage of multi-stage Dockerfiles
- Choose probes for common Node, Python, Go, Postgres, Redis, and nginx images
- Generate Dockerfile, Compose, or JSON output
- Replace an existing HEALTHCHECK only when explicitly requested
workflow integration
Keep the evidence in the run
Generate a reviewable probe and apply it only when requested.
- uses: barissozudogru/healthcheck-gen@v0.5.1good fit
Use it when
- Adding a first health check to an existing container
- Reviewing a generated probe before committing it
- Producing consistent health-check configuration for CI automation
operating limits
Know before using
- Framework and endpoint detection is heuristic
- Verify the proposed path and command against the application before using append mode
- A container health check does not replace end-to-end service monitoring