Dockerfile

# Use an official Python runtime as a parent image.
# We use a slim version to keep the image size smaller.
FROM python:3.11-slim

# Set the working directory in the container to /app.
WORKDIR /app

# Install system dependencies required for psycopg2.
# libpq-dev is the PostgreSQL client library and build-essential provides
# tools for compiling C code, which psycopg2 requires during installation.
RUN apt-get update && apt-get install -y \
    build-essential \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy the requirements file into the working directory.
COPY requirements.txt .

# Install the Python packages. This step will now succeed
# because the necessary system libraries are present.
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of your application's source code into the container.
# Assuming your main application file is `verifikator.py`
COPY . .

# Expose the port your Uvicorn server is running on (default is 8000).
EXPOSE 8000

# Run the command to start the application when the container launches.
# Adjust the entry point to match your application's file name and FastAPI instance.
# For example, if your app is in `verifikator.py` and the FastAPI instance is `app`,
# the command would be `uvicorn verifikator:app --host 0.0.0.0 --port 8000`.
CMD ["uvicorn", "verifikator:app", "--host", "0.0.0.0", "--port", "8000"]