RHDEVDOCS-3371 Tracker: 2002368 - samples should not go degraded when image allowedRegistries blocks imagestream creation

Author: rolfedh

modules/samples-operator-overview.adoc

@@ -51,6 +51,12 @@ Certain circumstances result in the Cluster Samples Operator bootstrapping itsel
 
 * If the Cluster Samples Operator cannot reach link:https://registry.redhat.io[registry.redhat.io] after three minutes on initial start-up after a clean installation.
 * If the Cluster Samples Operator detects it is on an IPv6 network.
+* If the xref:../openshift_images/image-configuration.html#images-configuration-parameters_image-configuration[Image configuration resources] settings prevent the creation of image streams with the default image registry or the image registry specified by the xref:../openshift_images/configuring-samples-operator.html#samples-operator-configuration_configuring-samples-operator[`samplesRegistry` setting].
+
+[NOTE]
+====
+For {product-title}, the default image registry is `registry.redhat.io`. For OKD, the default image registry is `registry.access.redhat.com` or `quay.io`.
+====
 
 However, if the Cluster Samples Operator also detects an {product-title} global proxy is configured, it bypasses those checks.