Change built-in dockerfile for backwards compatibility with legacy built-in detectors

[RobGeada]

This makes sure that the existing k8s deployment config can successfully launch the new python server,

Summary by Sourcery

Enhancements:

• Update the built-in Detector Dockerfile to support launching the new Python server while preserving backward compatibility with legacy detectors

[sourcery-ai]

Reviewer's Guide

This PR updates the built-in Dockerfile to support the new Python-based detector server while preserving backwards compatibility with legacy detectors by switching the base image, installing Python dependencies, introducing an entrypoint wrapper, and revising the health check.

File-Level Changes

Change	Details	Files
Switch to a Python base image and install dependencies	Change FROM alpine to python:3.9-slim Install pip and system packages for Python Copy requirements.txt and run pip install	detectors/Dockerfile.builtIn
Introduce entrypoint logic to preserve legacy detector startup	Add entrypoint.sh to select between legacy binary and Python server Set ENTRYPOINT to the new wrapper script Retain CMD fallback to the legacy detector binary	detectors/Dockerfile.builtIn
Update container health check to target the Python server	Modify HEALTHCHECK to curl the /healthz endpoint Adjust interval and timeout settings to existing values	detectors/Dockerfile.builtIn

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[sourcery-ai]

Hey @RobGeada - I've reviewed your changes and they look great!

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[github-actions]

PR image build completed successfully!

📦 PR image: quay.io/trustyai/guardrails-detector-huggingface-runtime-ci:b31557d4061a463d29738f8da409d024da7eaca1
📦 PR image: quay.io/trustyai/builtin-detector-ci:b31557d4061a463d29738f8da409d024da7eaca1