Update default molecule scenario

Using geerlingguy/docker-debian10-ansible +
geerlingguy/docker-debian11-ansible in Ansible molecule currently do not
work with systemd, see: geerlingguy/docker-debian11-ansible#4.

Instead, took Dockfiles from @aussielunix (Thx!) found here (but removed
'Australia/Sydney' timezone):

* https://gitlab.com/aussielunix/ansible/molecule-containers/-/blob/main/debian/buster/Dockerfile
* https://gitlab.com/aussielunix/ansible/molecule-containers/-/blob/main/debian/bullseye/Dockerfile

Compare with @geerlingguy's current Dockerfiles:

* https://github.com/geerlingguy/docker-debian10-ansible/blob/6f6a1650421afc953eb11439db9e5dabcc4d3afe/Dockerfile
* https://github.com/geerlingguy/docker-debian11-ansible/blob/101602c7b9e7b3e100b7435eaa455b94189b2d47/Dockerfile

Note, that when using `dockerfile`, `image` seems to be needed too.
Used `docker.io/debian:$DISTRIBUTION-slim` for `image` as they are the
base images for @aussielunix's Dockerfiles.

I could have used @aussielinux gitlab container registry as `image`, but
currently 'debian:bullseye' is missing:

* https://gitlab.com/aussielunix/ansible/molecule-containers/container_registry/3343441

See: geerlingguy/docker-debian11-ansible#4 (comment)

molecule/default/Dockerfile_debian_bullseye.j2

@@ -0,0 +1,48 @@
+FROM docker.io/debian:bullseye-slim
+
+LABEL org.opencontainers.image.description="Debian 11 Container for Molecule"
+LABEL org.opencontainers.image.source=https://gitlab.com/aussielunix/ansible/molecule-containers
+
+ENV LC_ALL en_US.UTF-8
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US.UTF-8
+
+# Avoid apt warnings by switching to noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends systemd systemd-sysv \
+    sudo procps python3-pip python3-dev python3-setuptools python3-wheel  \
+    # Clean up
+    && rm -rf /var/lib/apt/lists/* \
+    && rm -Rf /usr/share/doc && rm -Rf /usr/share/man \
+    && apt-get clean
+
+# Create `ansible` user and group with sudo permissions
+RUN set -xe \
+  && useradd -m -U -G sudo -s /bin/bash ansible \
+  && sed -i "/^%sudo/s/ALL\$/NOPASSWD:ALL/g" /etc/sudoers
+
+# Upgrade pip to latest version to avoid wheel / cryptography issues
+RUN pip3 install --upgrade pip
+
+# Install Ansible via pip.
+RUN pip3 install ansible-core ansible-lint cryptography
+
+# Install Ansible inventory file.
+RUN mkdir -p /etc/ansible
+RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
+
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog
+
+RUN rm -f /lib/systemd/system/multi-user.target.wants/* \
+    /etc/systemd/system/*.wants/* \
+    /lib/systemd/system/local-fs.target.wants/* \
+    /lib/systemd/system/sockets.target.wants/*udev* \
+    /lib/systemd/system/sockets.target.wants/*initctl* \
+    /lib/systemd/system/sysinit.target.wants/systemd-tmpfiles-setup* \
+    /lib/systemd/system/systemd-update-utmp*
+
+CMD [ "/lib/systemd/systemd", "log-level=info", "unit=sysinit.target" ]

molecule/default/Dockerfile_debian_buster.j2

@@ -0,0 +1,48 @@
+FROM docker.io/debian:buster-slim
+
+LABEL org.opencontainers.image.description="Debian 10 Container for Molecule"
+LABEL org.opencontainers.image.source=https://gitlab.com/aussielunix/ansible/molecule-containers
+
+ENV LC_ALL en_US.UTF-8
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US.UTF-8
+
+# Avoid apt warnings by switching to noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends systemd systemd-sysv \
+    sudo procps python3-pip python3-dev python3-setuptools python3-wheel  \
+    # Clean up
+    && rm -rf /var/lib/apt/lists/* \
+    && rm -Rf /usr/share/doc && rm -Rf /usr/share/man \
+    && apt-get clean
+
+# Create `ansible` user and group with sudo permissions
+RUN set -xe \
+  && useradd -m -U -G sudo -s /bin/bash ansible \
+  && sed -i "/^%sudo/s/ALL\$/NOPASSWD:ALL/g" /etc/sudoers
+
+# Upgrade pip to latest version to avoid wheel / cryptography issues
+RUN pip3 install --upgrade pip
+
+# Install Ansible via pip.
+RUN pip3 install ansible-core ansible-lint cryptography
+
+# Install Ansible inventory file.
+RUN mkdir -p /etc/ansible
+RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
+
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog
+
+RUN rm -f /lib/systemd/system/multi-user.target.wants/* \
+    /etc/systemd/system/*.wants/* \
+    /lib/systemd/system/local-fs.target.wants/* \
+    /lib/systemd/system/sockets.target.wants/*udev* \
+    /lib/systemd/system/sockets.target.wants/*initctl* \
+    /lib/systemd/system/sysinit.target.wants/systemd-tmpfiles-setup* \
+    /lib/systemd/system/systemd-update-utmp*
+
+CMD [ "/lib/systemd/systemd", "log-level=info", "unit=sysinit.target" ]

molecule/default/molecule.yml

@@ -5,19 +5,23 @@ driver:
   name: docker
 platforms:
   - name: debian10
-    image: geerlingguy/docker-debian10-ansible
-    command: ${MOLECULE_DOCKER_COMMAND:-""}
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    image: docker.io/debian:buster-slim
+    dockerfile: Dockerfile_debian_buster.j2
     privileged: true
-    pre_build_image: true
+    pre_build_image: false
+    override_command: false
+    tmpfs:
+      - /run
+      - /tmp
   - name: debian11
-    image: geerlingguy/docker-debian11-ansible
-    command: ${MOLECULE_DOCKER_COMMAND:-""}
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    image: docker.io/debian:bullseye-slim
+    dockerfile: Dockerfile_debian_bullseye.j2
     privileged: true
-    pre_build_image: true
+    pre_build_image: false
+    override_command: false
+    tmpfs:
+      - /run
+      - /tmp
 provisioner:
   name: ansible
 verifier: