jenkins-podman/Dockerfile

ARG BASE="latest-alpine-jdk11"

FROM jenkins/inbound-agent:${BASE}

USER root
RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \
    && apk upgrade -U -a \
    && apk --no-cache add \
    tini \
    make \
    fuse-overlayfs \
    podman \
    buildah \
    aws-cli \
    trivy

# Podman tweaks
ADD conf/containers.conf conf/registries.conf conf/storage.conf /etc/containers/
ADD --chown=jenkins:jenkins conf/podman-containers.conf /home/jenkins/.config/containers/containers.conf

RUN mkdir -p /var/lib/shared/overlay-images /var/lib/shared/overlay-layers \
             /var/lib/shared/vfs-images /var/lib/shared/vfs-layers && \
    touch /var/lib/shared/overlay-images/images.lock /var/lib/shared/overlay-layers/layers.lock \
          /var/lib/shared/vfs-images/images.lock /var/lib/shared/vfs-layers/layers.lock

# Trivy html template
ADD --chown=jenkins:jenkins html.tpl /home/jenkins

# Patch jenkins-agent to launch podman service
RUN sed -i -e 's/exec \$JAVA_BIN/podman system service -t0\&\n        exec \$JAVA_BIN/' /usr/local/bin/jenkins-agent

# Make docker in Jenkinsfiles work
RUN ln -s /usr/bin/podman /usr/bin/docker

# Rootless podman
RUN echo jenkins:100000:65536 > /etc/subuid \
 && echo jenkins:100000:65536 > /etc/subgid

ENV BUILDAH_ISOLATION=chroot

# Allow container layers to be stored in PVCs
VOLUME /home/jenkins/.local/share/containers

USER jenkins
ENTRYPOINT ["/sbin/tini", "--", "/usr/local/bin/jenkins-agent"]