build: Enhance Docker build configuration

This commit improves the Docker build process in three ways:
- The Dockerfile now runs `gradio cc build` to force the recompilation of project components, ensuring that any changes are always reflected in the final build.
- A `requirements.txt` file has been added to streamline dependency management, which simplifies the multi-stage build process.
- A `.dockerignore` file is now included to prevent unnecessary files and directories (like `.git`, `__pycache__`) from being copied into the build context.

.dockerignore

@@ -0,0 +1,39 @@
+# Include any files or directories that you don't want to be copied to your
+# container here (e.g., local build artifacts, temporary files, etc.).
+#
+# For more help, visit the .dockerignore file reference guide at
+# https://docs.docker.com/go/build-context-dockerignore/
+
+**/.DS_Store
+**/__pycache__
+**/.venv
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.github
+**/.gitignore
+**/.gitmodules
+**/.gitattributes
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/*.env
+**/docker-compose*
+**/compose*.y*ml
+**/Dockerfile*
+**/nginx
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+**/LICENSE
+**/CHANGELOG.md
+**/INSTALL.md
+

Dockerfile

@@ -1,16 +1,52 @@
 
-FROM python:3.11
+FROM python:3.11-slim as builder
 
 WORKDIR /code
 
-COPY --link --chown=1000 . .
+COPY --chown=1000 . .
 
-RUN mkdir -p /tmp/cache/
-RUN chmod a+rwx -R /tmp/cache/
-ENV TRANSFORMERS_CACHE=/tmp/cache/ 
+RUN apt-get update \
+    && apt-get install npm  -y --no-install-recommends \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
 
-RUN pip install --no-cache-dir -e /code/src/
+RUN python -m pip install --upgrade pip \
+    && pip install build \
+    && pip install -r /code/src/requirements.txt
 
-ENV PYTHONUNBUFFERED=1 	GRADIO_ALLOW_FLAGGING=never 	GRADIO_NUM_PORTS=1 	GRADIO_SERVER_NAME=0.0.0.0     GRADIO_SERVER_PORT=7860 	SYSTEM=spaces
+RUN cd /code/src \
+    && cd frontend \
+    && npm i -D @gradio/preview@0.11.2 \
+    && cd .. \
+    && gradio cc install \
+    && gradio cc build
 
+FROM python:3.11-slim as final
+
+RUN groupadd -r appgroup \
+    && useradd -r -g appgroup -d /home/appuser -m appuser
+
+WORKDIR /home/appuser/app
+
+RUN mkdir -p /tmp/cache/ \
+    && chmod a+rwx -R /tmp/cache/
+
+COPY --chown=appuser:appgroup . .
+COPY --from=builder --chown=appuser:appgroup /code/src/dist/*.whl ./
+
+USER appuser
+
+ENV PATH="/home/appuser/.local/bin:$PATH" \
+    TRANSFORMERS_CACHE=/tmp/cache/ \
+    PYTHONUNBUFFERED=1 \
+    GRADIO_ALLOW_FLAGGING=never \
+    GRADIO_NUM_PORTS=1 \
+    GRADIO_SERVER_NAME=0.0.0.0 \
+    GRADIO_SERVER_PORT=7860 \
+    SYSTEM=spaces
+
+RUN python -m pip install --upgrade pip \
+    && pip install ./gradio_highlightedtextbox*.whl
+
+EXPOSE 7860
 CMD ["python", "app.py"]

src/requirements.txt

@@ -0,0 +1 @@
+gradio<5.0,>=4.0