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Dockerfile
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FROM ubuntu:22.04
LABEL maintainer="Camille Tjhoa"
ENV pip_packages "ansible"
# Install dependencies.
RUN apt-get update \
&& apt-get install -y --no-install-recommends \
apt-utils \
locales \
python3-setuptools \
python3-pip \
software-properties-common \
rsyslog systemd systemd-cron sudo iproute2 \
&& rm -Rf /var/lib/apt/lists/* \
&& rm -Rf /usr/share/doc && rm -Rf /usr/share/man \
&& apt-get clean
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
# Install Ansible via Pip.
RUN pip3 install $pip_packages
COPY initctl_faker .
RUN chmod +x initctl_faker && rm -fr /sbin/initctl && ln -s /initctl_faker /sbin/initctl
# Install Ansible inventory file.
RUN mkdir -p /etc/ansible
RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
# 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
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
VOLUME ["/sys/fs/cgroup", "/tmp", "/run"]
CMD ["/lib/systemd/systemd"]