Dockerfile

FROM openjdk:11-jdk-buster

ARG user=jenkins
ARG group=jenkins
ARG uid=1000
ARG gid=1000

RUN groupadd -g ${gid} ${group}
RUN useradd -c "Jenkins user" -d /home/${user} -u ${uid} -g ${gid} -m ${user}
LABEL Description="This is a base image, which provides the Jenkins agent executable (agent.jar)" Vendor="Jenkins project" Version="${VERSION}"


ARG AGENT_WORKDIR=/home/${user}/agent

RUN apt-get update && apt-get install git-lfs && rm -rf /var/lib/apt/lists/*
RUN curl --create-dirs -fsSLo /usr/share/jenkins/agent.jar https://repo.jenkins-ci.org/releases/org/jenkins-ci/plugins/swarm-client/3.4/swarm-client-3.4.jar \
  && chmod 755 /usr/share/jenkins \
  && chmod 644 /usr/share/jenkins/agent.jar \
  && ln -sf /usr/share/jenkins/agent.jar /usr/share/jenkins/slave.jar \
  && ln -sf /usr/share/jenkins/agent.jar /home/${user}/slave.jar

USER ${user}
ENV AGENT_WORKDIR=${AGENT_WORKDIR}
RUN mkdir /home/${user}/.jenkins && mkdir -p ${AGENT_WORKDIR}

VOLUME /home/${user}/.jenkins
VOLUME ${AGENT_WORKDIR}
WORKDIR /home/${user}