Add smart install dockerfile

Dockerfile

@@ -0,0 +1,55 @@
+# This Dockerfile is designed to deliver vllm-detector-adapter
+# in a tiny image only containing this app + any additional required
+# packages. (At the time of writing, there are no additional packages required)
+# NOTE: The image generated out of this file should only be used in conjunction with a
+# compatible vllm image, otherwise it will throw error.
+
+ARG BASE_UBI_IMAGE_TAG=9.5
+ARG PYTHON_VERSION=3.12
+
+### Build layer
+FROM quay.io/opendatahub/vllm:fast-ibm-a58bf32 as build
+
+ARG PYTHON_VERSION
+ENV PYTHON_VERSION=${PYTHON_VERSION}
+
+USER root
+
+COPY scripts/targeted_pip_install.py /app/
+
+COPY vllm_detector_adapter /app/vllm-detector-adapter/vllm_detector_adapter
+COPY pyproject.toml /app/vllm-detector-adapter
+
+WORKDIR /app
+
+RUN python${PYTHON_VERSION} targeted_pip_install.py -p /app/vllm-detector-adapter/ -t /app/target_packages
+
+### Build layer with tgis-adapter
+FROM build as build_tgis_adapter
+
+WORKDIR /app/vllm-detector-adapter
+
+# Because tgis-adapter is an "extra" that we need to specify, we can't provide installation directory path
+# directly. So we need to use the `.` operator and to be able to do that, we need to run install script
+# via full path.
+RUN python${PYTHON_VERSION} /app/targeted_pip_install.py -p .["vllm-tgis-adapter"] -t /app/target_packages
+
+### Release Layer (only vllm-detector-adapter)
+FROM registry.access.redhat.com/ubi9/ubi-minimal:${BASE_UBI_IMAGE_TAG} as release
+
+COPY --from=build --chown=1001 /app/target_packages /app/target_packages
+
+ENV SHARED_PACKAGE_PATH="/shared_packages/app/"
+
+# The entrypoint for this image is designed to follow its usage, i.e
+# to be used along with vllm image. Therefore, in this image, we
+# only copy the package(s) to a shared package path
+# NOTE: Along with this, one may need to adjust PYTHONPATH to call
+# this package, depending on setup.
+# Example: PYTHONPATH='${SHARED_PACKAGE_PATH}:${PYTHONPATH}'
+ENTRYPOINT ["/bin/bash", "-c", "cp -r /app/target_packages/*  ${SHARED_PACKAGE_PATH}" ]
+
+### Release Layer (with vllm-tgis-adapter)
+FROM release as release_tgis_adapter
+
+COPY --from=build_tgis_adapter --chown=1001 /app/target_packages /app/target_packages