fix(rockylinux-8): init

Dockerfile.rockylinux8

@@ -0,0 +1,20 @@
+FROM docker.io/library/rockylinux:8
+
+RUN dnf update --assumeyes && \
+    dnf install --assumeyes epel-release && \
+    dnf install --assumeyes ansible && \
+    dnf remove --assumeyes epel-release && \
+    dnf install --assumeyes bash-completion sudo && \
+    dnf clean all
+
+# Install Ansible inventory file
+RUN mkdir --parents /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 --recursive --force /lib/systemd/system/systemd*udev* && \
+    rm --recursive --force /lib/systemd/system/getty.target
+
+VOLUME [ "/sys/fs/cgroup", "/tmp", "/run"]