Update Dockerfile

Dockerfile

@@ -1,12 +1,11 @@
 FROM python:3.10-slim
 
 # Set environment variables
-ENV PYTHONUNBUFFERED=1
-ENV DEBIAN_FRONTEND=noninteractive
-# Add the default user local bin to PATH. This is where pip often installs executables.
-ENV PATH="/home/appuser/.local/bin:${PATH}"
+ENV PYTHONUNBUFFERED=1 \
+    DEBIAN_FRONTEND=noninteractive \
+    PATH="/home/appuser/.local/bin:${PATH}"
 
-# Install system dependencies (ffmpeg, fontconfig for managing copied fonts)
+# Install system dependencies
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         ffmpeg \
@@ -16,38 +15,32 @@ RUN apt-get update && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-# Create directory for custom fonts and copy your font file(s)
+# Set up custom fonts
 RUN mkdir -p /usr/local/share/fonts/truetype/mycustomfonts
 COPY assets/fonts/arial.ttf /usr/local/share/fonts/truetype/mycustomfonts/arial.ttf
-
-# Rebuild font cache
 RUN fc-cache -f -s -v
 
-# Create a non-root user and group
+# Create non-root user
 ARG APP_USER_UID=1000
 ARG APP_USER_GID=1000
 RUN groupadd --gid $APP_USER_GID appgroup && \
     useradd --uid $APP_USER_UID --gid appgroup --shell /bin/bash --create-home appuser
-    # The --create-home flag for useradd usually sets up a basic .profile or .bashrc
-    # which should configure PATH to include ~/.local/bin, but we make it explicit with ENV PATH.
 
-WORKDIR /home/appuser/app # This is appuser's home and working directory
+# Set working directory
+WORKDIR /home/appuser/app
 
-# Copy requirements.txt and install Python dependencies AS APPUSER
+# Install Python dependencies
 COPY --chown=appuser:appgroup requirements.txt ./
-USER appuser # Switch to appuser BEFORE pip install
+USER appuser
 
-# Upgrade pip and install Python dependencies
-# Use python -m pip and specify --user if installing into user's site-packages
-# However, since WORKDIR is home and we switched user, pip should install to user's .local by default.
-RUN python -m pip install --no-cache-dir --upgrade pip
-RUN python -m pip install --no-cache-dir -r requirements.txt --verbose # Add --verbose for more output
+RUN python -m pip install --no-cache-dir --upgrade pip && \
+    python -m pip install --no-cache-dir -r requirements.txt --verbose
 
-# Verify streamlit installation location after pip install
-RUN which streamlit || echo "streamlit not found in PATH after pip install"
-RUN ls -l /home/appuser/.local/bin || echo "/home/appuser/.local/bin does not exist or is empty"
+# Verify installation
+RUN which streamlit || echo "streamlit not found in PATH" && \
+    ls -l /home/appuser/.local/bin || echo "Local bin directory not found"
 
-# Copy the rest of the application code as the appuser
+# Copy application code
 COPY --chown=appuser:appgroup . .
 
 EXPOSE 8501