initial commit

Dockerfile

@@ -0,0 +1,56 @@
+```dockerfile
+# Use a stable Python base image
+FROM python:3.11-slim
+
+# Build arguments for host user mapping
+ARG USER_ID=1000
+ARG GROUP_ID=1000
+
+# Create non-root user
+RUN groupadd -g ${GROUP_ID} infoscreen_taa \
+    && useradd -u ${USER_ID} -g ${GROUP_ID} --shell /bin/bash --create-home infoscreen_taa
+
+# Ensure user exists
+RUN getent passwd infoscreen_taa
+
+# Install locale dependencies and generate UTF-8 locale
+RUN apt-get update && apt-get install -y locales \
+    && sed -i 's/# de_DE.UTF-8 UTF-8/de_DE.UTF-8 UTF-8/' /etc/locale.gen \
+    && locale-gen
+
+# Set environment variables for locale
+ENV LANG=de_DE.UTF-8 \
+    LANGUAGE=de_DE:de \
+    LC_ALL=de_DE.UTF-8
+
+# Enable Dash debug during development
+ENV DASH_DEBUG_MODE=True
+
+# Working directory inside container
+WORKDIR /app  # entspricht mount in devcontainer.json
+
+# Copy only requirements first for efficient caching
+COPY server/requirements-dev.txt ./
+
+# Install dev dependencies under the non-root user
+USER infoscreen_taa
+RUN pip install --upgrade pip \
+    && pip install --user -r requirements-dev.txt
+
+# Switch back to root to copy source files and fix permissions
+USER root
+
+# Copy the server application code into /app
+COPY server/ /app
+RUN chown -R infoscreen_taa:infoscreen_taa /app
+
+# Create config directory under the non-root user's home
+RUN mkdir -p /home/infoscreen_taa/.config/Infoscreen-Server \
+    && chown -R infoscreen_taa:infoscreen_taa /home/infoscreen_taa/.config/Infoscreen-Server
+
+# Expose development ports
+EXPOSE 8000 8050
+
+# Use a long-running process so the container stays alive
+CMD ["tail", "-f", "/dev/null"]
+```