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Containerfile
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Containerfile
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# Base image:
FROM docker.io/library/ubuntu:20.04
# Image build arguments:
ARG DEBIAN_FRONTEND=noninteractive
# Environmental variables:
ENV pip_packages "ansible"
# Package installs/updates:
RUN apt-get update && \
apt-get install -y --no-install-recommends \
apt-utils \
build-essential \
locales \
libffi-dev \
libssl-dev \
libyaml-dev \
python3-dev \
python3-setuptools \
python3-pip \
python3-yaml \
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
# Install Python packages:
RUN pip3 install $pip_packages
# Setting up initctl:
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 -e '[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
# Specify volumes:
VOLUME ["/sys/fs/cgroup", "/tmp", "/run"]
# Run once the container has started:
CMD ["/lib/systemd/systemd"]