jessie-amd64-jenkins-master/Dockerfile

FROM jenkins/jenkins:2.462.1-lts-slim

ENV JAVA_MEM=${JAVA_MEM:-8}
ENV JENKINS_JAVA_PARAMETERS="-server -Xmx${JAVA_MEM}g -Xms${JAVA_MEM}g -XX:+AlwaysPreTouch -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/log/jenkins/heapdump.log -XX:+UseG1GC -XX:+UseStringDeduplication -XX:+ParallelRefProcEnabled -XX:+ExplicitGCInvokesConcurrent -XX:+UnlockDiagnosticVMOptions -XX:G1SummarizeRSetStatsPeriod=1 -XX:MaxMetaspaceExpansion=64M -Djenkins.model.Jenkins.logStartupPerformance=true"
ENV JAVA_OPTS="$JENKINS_JAVA_PARAMETERS -Djava.awt.headless=true -Dhudson.slaves.WorkspaceList='_' -Dhudson.model.ParametersAction.keepUndefinedParameters=true -Dorg.jenkinsci.plugins.gitclient.Git.timeOut=30 -Dorg.eclipse.jetty.server.Request.maxFormContentSize=1000000"
ENV JENKINS_OPTS="--sessionTimeout=1440 --sessionEviction=86400"

# Install jenkins job builder
# Create plugins directory, symlinked on host machine
USER root
RUN mkdir -p /var/jenkins_plugins \
  && chown jenkins:jenkins /var/jenkins_plugins \
  && ln -s /var/jenkins_home /var/lib/jenkins \
  && ln -s /usr/bin/python3 /usr/bin/python \
  && mkdir -p /usr/share/groovy/lib \
  && apt-get -q update \
  && DEBIAN_FRONTEND=noninteractive apt-get install -q -y --no-install-recommends \
  ansible \
  build-essential \
  debian-keyring \
  devscripts \
  dirmngr \
  jq \
  moreutils \
  python3-pip \
  python3-paramiko \
  python3-requests \
  python3-setuptools \
  python3-wheel \
  sshpass \
  virtualenv \
  wget \
  && apt-get clean && \
  pip3 install --break-system-packages \
  jenkins-job-builder==5.0.3 Jinja2==3.0.1 python-jenkins==1.8.1 \
  && rm -rf /var/lib/apt/lists/*
USER jenkins

# Install jenkins plugins
COPY plugins.txt .
# Let's try limiting this command to 4G since env vars are setting it
# to 8G, but we're building in ci on a system with only 2G mem
RUN export JAVA_OPTS="-Xmx2g -Xms2g" && jenkins-plugin-cli -f plugins.txt

# Forward ports to host
EXPOSE 2222