Dockerfile

FROM postgres:16

ENV POSTGRES_USER=myuser
ENV POSTGRES_PASSWORD=mypassword
ENV POSTGRES_DB=mydatabase

EXPOSE 5432 5000

RUN sed -i '/^#port =/c\port = 5432' /usr/share/postgresql/postgresql.conf.sample

RUN apt-get update \
  && apt-get install -y python3 python3-pip \
  && pip3 install flask psycopg2-binary \
  && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY app.py /app/app.py
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh

ENTRYPOINT ["/entrypoint.sh"]