FROM debian:11-slim
RUN apt-get update && apt-get install -y cowsay \
    && apt-get clean
RUN mkdir -p /opt/alice
WORKDIR /opt/alice
COPY cow-say-alice.sh cow-say-alice.sh
RUN chmod +x cow-say-alice.sh
ADD http://jackbenny.se/docs/alice.txt alice.txt
CMD ["/opt/alice/cow-say-alice.sh"]