Add check for atomic hosts in template

roles/docker/templates/docker.service.j2

@@ -24,7 +24,7 @@ ExecStart={{ docker_bin_dir }}/docker{% if installed_docker_version.stdout|versi
           $DOCKER_NETWORK_OPTIONS \
           $DOCKER_DNS_OPTIONS \
           $INSECURE_REGISTRY
-{% if systemd_version.stdout|int >= 226 %}
+{% if not is_atomic and systemd_version.stdout|int >= 226 %}
 TasksMax=infinity
 {% endif %}
 LimitNOFILE=1048576