# Use the official Ubuntu 22.04 as the base image
FROM ubuntu:22.04

# Update the package list and install sudo
RUN apt-get update \
 && apt-get install -y sudo

# Ensure sudo has the correct permissions
RUN chown root:root /usr/bin/sudo && chmod 4755 /usr/bin/sudo

# Create a new user 'compsec' and add it to the sudo group
RUN adduser --disabled-password --gecos '' compsec
RUN echo "compsec:compsec" | chpasswd
RUN adduser compsec sudo
RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers

# Switch to the 'compsec' user and set the working directory
USER compsec
WORKDIR /home/compsec
ARG DEBIAN_FRONTEND=noninteractive

# Add 32-bit architecture support
RUN sudo dpkg --add-architecture i386

# Update apt sources to use the Daum Kakao mirror
RUN sudo sed -i 's/archive.ubuntu.com/ftp.daumkakao.com/g' /etc/apt/sources.list
RUN sudo sed -i 's/security.ubuntu.com/ftp.daumkakao.com/g' /etc/apt/sources.list

# Update and upgrade the system, and install necessary packages
RUN sudo apt-get update && sudo apt-get upgrade -y
RUN sudo apt-get install openssh-server -y
RUN sudo apt-get install build-essential gcc g++ vim git -y
RUN sudo apt-get install libtool automake bison libglib2.0-dev -y
RUN sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 -y
RUN sudo apt-get install gdb -y
RUN sudo apt-get install gcc flex bison libncurses-dev libelf-dev libssl-dev qemu -y
RUN sudo apt-get install python-is-python3 git libssl-dev libffi-dev build-essential libcapstone-dev -y
RUN sudo apt-get install net-tools curl netcat -y

# Enable password authentication in SSH
RUN sudo sed -i 's/#PasswordAuthentication/PasswordAuthentication/' /etc/ssh/sshd_config
RUN sudo mkdir /run/sshd

# Start the SSH server
CMD ["sudo", "/usr/sbin/sshd", "-D"]