Merge pull request #609 from redis/DOC-4131-rdi-localhost-ip-change-fail

DOC-4131 added note about localhost IP change

Author: andy-stark-redis

content/integrate/redis-data-integration/ingest/data-pipelines/data-pipelines.md

@@ -172,8 +172,6 @@ configuration contains the following data:
     Quarkus [Configuration options](https://quarkus.io/guides/all-config)
     docs for the full set of available properties.
 
-    
-
 ### Targets
 
 Use this section to provide the connection details for the target Redis
@@ -184,6 +182,18 @@ with a unique name that you are free to choose (here, we have used
 `host` and `port` of the server. You can also supply connection credentials
 and TLS/mTLS secrets here if you use them.
 
+{{< note >}}If you specify `localhost` as the address of either the source or target server during
+installation then the connection will fail if the actual IP address changes for the local
+VM. For this reason, we recommend that you don't use `localhost` for the address. However,
+if you do encounter this problem, you can fix it using the following commands on the VM
+that is running RDI itself:
+
+```bash
+sudo k3s kubectl delete nodes --all
+sudo service k3s restart
+```
+{{< /note >}}
+
 ## Job files
 
 You can optionally supply one or more job files that specify how you want to

content/integrate/redis-data-integration/ingest/installation/_index.md

@@ -147,7 +147,8 @@ Follow the steps below for each of your VMs:
 RDI uses a database on your Redis Enterprise cluster to store its state
 information. *This requires Redis Enterprise v6.4 or greater*.
 
-The installer will ask you for cluster admin credentials. You should supply
+The installer gives you instructions to help you create secrets and create your pipeline.
+It will ask you for cluster admin credentials during installation. You should supply
 these if you want the installer to create the RDI database for you.
 
 {{<note>}}The installer does not create the RDI Redis database with
@@ -163,9 +164,19 @@ If you don’t want the installation to create the RDI database for you:
   and TLS.
 - Provide the installation with the required RDI database details.
 
-Once the installation is finished, RDI is ready for use.
+{{< note >}}If you specify `localhost` as the address of the RDI database server during
+installation then the connection will fail if the actual IP address changes for the local
+VM. For this reason, we recommend that you don't use `localhost` for the address. However,
+if you do encounter this problem, you can fix it using the following commands on the VM
+that is running RDI itself:
 
-{{<note>}}RDI gives you instructions to help you create secrets and create your pipeline.{{</note>}}
+```bash
+sudo k3s kubectl delete nodes --all
+sudo service k3s restart
+```
+{{< /note >}}
+
+After the installation is finished, RDI is ready for use.
 
 ## "Silent" installation