More iteration of the jenkins image

jenkins-ubuntu.Dockerfile

@@ -2,4 +2,16 @@ FROM ubuntu:focal
 
 ENV DEBIAN_FRONTEND noninteractive
 
-RUN apt-get update -y && apt-get install -y --no-install-recommends ssh git build-essential cmake ninja-build python3 python3-pip default-jre
+RUN apt-get update -y && apt-get install -y --no-install-recommends sudo openssh-server git build-essential cmake ninja-build python3 python3-pip default-jre
+RUN sed -i 's|session    required     pam_loginuid.so|session    optional     pam_loginuid.so|g' /etc/pam.d/sshd
+RUN mkdir -p /var/run/sshd
+RUN adduser --quiet jenkins
+RUN echo "jenkins ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers
+
+COPY jenkins-ubuntu/.ssh/authorized_keys /home/jenkins/.ssh/authorized_keys
+
+RUN chown -R jenkins:jenkins /home/jenkins/.ssh/
+
+EXPOSE 22
+
+CMD ["/usr/sbin/sshd", "-D"]

jenkins-ubuntu/.ssh/authorized_keys

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAQPGsTqCq3TyambvquSpO3QYNyEbkT8U0mGyetZtVmF jenkins