Merge pull request #3537 from replicatedhq/AmberAlston-patch-1

Added note about k0s prober until it is eliminated fully

Author: AmberAlston

docs/enterprise/installing-embedded-requirements.mdx

@@ -39,6 +39,10 @@ This topic lists the installation requirements for Replicated Embedded Cluster.
 
 * Required only if the application uses the [Replicated private registry](/vendor/private-images-replicated).
 
+:::note
+If you monitor the outbound traffic attempts made by Embedded Cluster, you might see an attempted call to `updates.k0sproject.io` approximately every 30 minutes. These calls are made by a feature of the upstream k0s project called `update-prober`, which checks for k0s updates. Embedded Cluster does not use the `update-prober` feature and blocking it in your firewall rules will not affect Replicated product functionality.
+:::
+
 ## About Firewalld Configuration
 
 When Firewalld is enabled in the installation environment, Embedded Cluster modifies the Firewalld config to allow traffic over the pod and service networks and to open the required ports on the host. No additional configuration is required.
@@ -86,4 +90,4 @@ The following ports are opened in the default zone:
   <td>4789</td>
   <td>UDP</td>
 </tr>
-</table>
+</table>