Dockerfile

# Use the official Python base image
FROM python:3.9-slim

# Set the working directory inside the container
WORKDIR /app

# set environment variables
## Prevents Python from writing pyc files to disc (equivalent to python -B)
ENV PYTHONDONTWRITEBYTECODE 1
## PYTHONUNBUFFERED: Prevents Python from buffering stdout and stderr (equivalent to python -u)
ENV PYTHONUNBUFFERED 1

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

# Install the Python dependencies
RUN pip install -r requirements.txt

# Copy the application code to the working directory
COPY . .

# create a non-root user and switch to it, for security.
RUN addgroup --system --gid 1001 "fastapi-jwt"
RUN adduser --system --uid 1001 "fastapi-jwt"
USER "fastapi-jwt"

# Expose the port on which the application will run
EXPOSE 8081

# Run the FastAPI application using uvicorn server
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8081", "--reload"]