Update Dockerfile

Dockerfile

@@ -1,15 +1,30 @@
 # Use an official Python runtime as a parent image
 FROM python:3.10-slim
 
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    libpq-dev \
+    gcc \
+    && rm -rf /var/lib/apt/lists/*
+
 # Set the working directory in the container
 WORKDIR /app
 
-# Copy only the requirements file first to leverage Docker cache
+# Copy only the requirements file to leverage Docker cache
 COPY requirements.txt /app/
 
 # Install any needed packages specified in requirements.txt
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir --upgrade pip
+
+# Install gunicorn separately to capture any errors
+RUN pip install --no-cache-dir gunicorn
+
+# Install the rest of the requirements
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Verify gunicorn installation
+RUN which gunicorn
 
 # Copy the current directory contents into the container
 COPY . /app