Update Dockerfile

Dockerfile

@@ -1,24 +1,29 @@
-# Use a minimal base image with Python 3.9 installed
+# Use Python 3.9 base
 FROM python:3.9
 
-# Set the working directory inside the container to /app
-WORKDIR /app
-
-# Copy all files from the current directory on the host to the container's /app directory
-COPY . .
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
 
-USER user
-ENV HOME=/home/user \
-	PATH=/home/user/.local/bin:$PATH
+# 1) Work as root (default)
+WORKDIR /app
 
-# Install Python dependencies listed in requirements.txt
-RUN pip3 install -r requirements.txt
+# 2) Copy only requirements first for better layer caching
+COPY requirements.txt /app/requirements.txt
+RUN pip3 install --no-cache-dir -r requirements.txt
 
+# 3) Create the non-root user BEFORE switching to it
 RUN useradd -m -u 1000 user
+ENV HOME=/home/user
+
+# 4) Prepare user home and app dir, set ownership
+RUN mkdir -p $HOME/app && chown -R user:user $HOME
 
+# 5) Now switch to the non-root user
+USER user
 WORKDIR $HOME/app
 
-COPY --chown=user . $HOME/app
+# 6) Copy the rest of the source as that user
+COPY --chown=user:user . $HOME/app
 
-# Define the command to run the Streamlit app on port "8501" and make it accessible externally
+# 7) Run your app
 CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0", "--server.enableXsrfProtection=false"]