Updated Docker File

[hari-gopalakrishnan]

FROM ubuntu:20.04
ENV TZ=Asia/Kolkata
DEBIAN_FRONTEND=noninteractive

RUN apt-get update &&
apt-get install -qy tzdata

LABEL maintainer="Bibin Wilson bibinwilsonn@gmail.com"

Make sure the package repository is up to date.

RUN apt-get update &&
apt-get -qy full-upgrade &&
apt-get install -qy git && \

Install a basic SSH server

apt-get install -qy openssh-server && \
sed -i 's|session    required     pam_loginuid.so|session    optional     pam_loginuid.so|g' /etc/pam.d/sshd && \
mkdir -p /var/run/sshd && \

Install JDK 8 (latest stable edition at 2019-04-01)

apt-get install -qy openjdk-11-jdk && \

Install maven

apt-get install -qy maven && \

Cleanup old packages

apt-get -qy autoremove && \

Add user jenkins to the image

adduser jenkins --gecos "First Last,RoomNumber,WorkPhone,HomePhone" --disabled-password && \

Set password for the jenkins user (you may want to alter this).

echo "jenkins:jenkins" | chpasswd && \
mkdir /home/jenkins/.m2

#ADD settings.xml /home/jenkins/.m2/

Copy authorized keys

COPY .ssh/authorized_keys /home/jenkins/.ssh/authorized_keys

RUN chown -R jenkins:jenkins /home/jenkins/.m2/ &&
chown -R jenkins:jenkins /home/jenkins/.ssh/

Standard SSH port

EXPOSE 22

CMD ["/usr/sbin/sshd", "-D"]