# Stolen from https://github.com/LiveOverflow/pwn_docker_example/blob/master/challenge/Dockerfile # docker build -t suckless2 . # docker run -d -p 8089:8089 --restart=always --name suckless2 suckless2 FROM ubuntu:20.04 RUN apt-get update RUN useradd -d /home/ctf/ -m -p ctf -s /bin/bash ctf RUN echo "ctf:ctf" | chpasswd WORKDIR /home/ctf COPY suckless2 . COPY ynetd . RUN chown -R root:root /home/ctf USER ctf EXPOSE 8089 CMD ./ynetd -p 8089 ./suckless2