Create Dockerfile

.dockerignore

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+.git
+.gitignore
+.git-blame-black-application
+.gitmodules
+.gitattributes
+__pycache__
+*.py[cod]
+*$py.class
+*.so
+.Python
+build
+develop-eggs
+dist
+downloads
+egg-info
+.eggs
+lib
+lib64
+parts
+sdist
+var
+wheels
+*.egg
+*.egg-info
+.installed.cfg
+*.env
+*.venv
+venv
+ENV
+env
+.vscode
+.idea
+.DS_Store
+*.sqlite3
+*.db
+*.log
+media/
+static/
+!static/.keep
+!media/.keep

Dockerfile

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+# Use an official Python runtime as a parent image
+FROM python:3.10-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+
+# Set work directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    libpq-dev \
+    default-libmysqlclient-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python dependencies
+COPY requirements.txt requirements-prod.txt ./
+RUN pip install --no-cache-dir -r requirements.txt && \
+    pip install --no-cache-dir -r requirements-prod.txt
+
+# Copy project
+COPY . .
+
+# Collect static files
+RUN python manage.py collectstatic --noinput
+
+# Expose the port the app runs on
+EXPOSE 8000
+
+# Command to run the application
+CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--workers", "4", "treo.wsgi:application"]