FROM debian:13.3-slim
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y git openssh-server openjdk-21-jdk
RUN useradd -m -d /home/jenkins -s /bin/bash jenkins && echo "jenkins:jenkins" | chpasswd
EXPOSE 22
CMD ["/usr/sbin/sshd","-D"]