Dockerfile

ARG VERSION=24.04

FROM ubuntu:${VERSION}
LABEL maintainer="HIFIS (https://www.hifis.net)"

ARG DEBIAN_FRONTEND=noninteractive

# Install dependencies.
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
       apt-utils \
       build-essential \
       locales \
       libffi-dev \
       libssl-dev \
       libyaml-dev \
       python3-dev \
       software-properties-common \
       rsyslog systemd systemd-cron sudo iproute2 \
    && apt-get clean \
    && rm -Rf /var/lib/apt/lists/* \
    && rm -Rf /usr/share/doc && rm -Rf /usr/share/man
RUN sed -i 's/^\($ModLoad imklog\)/#\1/' /etc/rsyslog.conf

# Fix potential UTF-8 errors with ansible-test.
RUN locale-gen en_US.UTF-8

COPY initctl_faker .
RUN chmod +x initctl_faker && rm -fr /sbin/initctl && ln -s /initctl_faker /sbin/initctl

# Remove unnecessary getty and udev targets that result in high CPU usage when using
# multiple containers with Molecule (https://github.com/ansible/molecule/issues/1104)
RUN rm -f /lib/systemd/system/systemd*udev* \
  && rm -f /lib/systemd/system/getty.target

# Create ansible user with sudo permissions
ENV ANSIBLE_USER=ansible \
    SUDO_GROUP=sudo

# Create non-root user with sudo access
RUN set -xe \
    && groupadd -r ${ANSIBLE_USER} \
    && useradd -m -g ${ANSIBLE_USER} ${ANSIBLE_USER} \
    && usermod -aG ${SUDO_GROUP} ${ANSIBLE_USER} \
    && sed -i "/^%${SUDO_GROUP}/s/ALL\$/NOPASSWD:ALL/g" /etc/sudoers

CMD ["/lib/systemd/systemd"]