inventory: Add use_crio example

inventory/byo/hosts.origin.example

@@ -108,7 +108,11 @@ openshift_release=v3.6
 # The following options must not be used
 # - openshift_docker_options
 #openshift_docker_use_system_container=False
-# Force the registry to use for the system container. By default the registry
+# Instead of using docker, replacec it with cri-o
+# NOTE: This uses openshift_docker_systemcontainer_image_registry_override as it's override
+# just as container-engine does.
+#use_crio=False
+# Force the registry to use for the docker/crio system container. By default the registry
 # will be built off of the deployment type and ansible_distribution. Only
 # use this option if you are sure you know what you are doing!
 #openshift_docker_systemcontainer_image_registry_override="registry.example.com"

inventory/byo/hosts.ose.example

@@ -108,7 +108,11 @@ openshift_release=v3.6
 # The following options must not be used
 # - openshift_docker_options
 #openshift_docker_use_system_container=False
-# Force the registry to use for the system container. By default the registry
+# Install and run cri-o along side docker
+# NOTE: This uses openshift_docker_systemcontainer_image_registry_override as it's override
+# just as container-engine does.
+#use_crio=False
+# Force the registry to use for the container-engine/crio system container. By default the registry
 # will be built off of the deployment type and ansible_distribution. Only
 # use this option if you are sure you know what you are doing!
 #openshift_docker_systemcontainer_image_registry_override="registry.example.com"