OBSDOCS-890: Fix bugs in syslog docs

logging/log_collection_forwarding/cluster-logging-collector.adoc

@@ -20,7 +20,7 @@ include::modules/cluster-logging-collector-pod-location.adoc[leveloffset=+1]
 
 include::modules/cluster-logging-collector-limits.adoc[leveloffset=+1]
 
-//include::modules/log-collector-rsyslog-server.adoc[leveloffset=+1]
+include::modules/log-collector-rsyslog-server.adoc[leveloffset=+1]
 // uncomment for 5.9 release
 
 include::modules/log-collector-http-server.adoc[leveloffset=+1]

modules/log-collector-rsyslog-server.adoc

@@ -19,12 +19,15 @@ In {logging} version 5.9 and newer versions, you can configure your log collecto
 
 . Modify the `ClusterLogForwarder` CR to add configuration for the `syslog` receiver input:
 +
+--
+.Example `ClusterLogForwarder` CR if you are using a multi log forwarder deployment
 [source,yaml]
 ----
-apiVersion: logging.openshift.io/v1beta1
+apiVersion: logging.openshift.io/v1
 kind: ClusterLogForwarder
 metadata:
-# ...
+  name: example
+  namespace: <namespace>
 spec:
   serviceAccountName: <service_account_name>
   inputs:
@@ -36,17 +39,52 @@ spec:
   pipelines: # <4>
     - name: syslog-pipeline
       inputRefs:
-        - syslog-receiver
+        - infrastructure
+# ...
+----
+<1> Specify a name for your input receiver.
+<2> Specify the input receiver type as `syslog`.
+<3> Optional: Specify the port that the input receiver listens on. This must be a value between `1024` and `65535`. The default value is `10514` if this is not specified.
+<4> Configure a pipeline for your input receiver.
+--
++
+--
+.Example `ClusterLogForwarder` CR if you are using a legacy deployment
+[source,yaml]
+----
+apiVersion: logging.openshift.io/v1
+kind: ClusterLogForwarder
+metadata:
+  name: instance
+  namespace: openshift-logging
+spec:
+  inputs:
+    - name: syslog-receiver # <1>
+      receiver:
+        type: syslog # <2>
+        syslog:
+          port: 10514 # <3>
+  pipelines: # <4>
+  - inputRefs:
+    - infrastructure
+    name: syslog-pipeline
 # ...
 ----
 <1> Specify a name for your input receiver.
 <2> Specify the input receiver type as `syslog`.
 <3> Optional: Specify the port that the input receiver listens on. This must be a value between `1024` and `65535`. The default value is `10514` if this is not specified.
 <4> Configure a pipeline for your input receiver.
+--
 
 . Apply the changes to the `ClusterLogForwarder` CR by running the following command:
 +
 [source,terminal]
 ----
 $ oc apply -f <filename>.yaml
 ----
+
+The {clo} deploys a service for each configured input receiver so that clients can write to the collector. This service exposes the port specified for the input receiver.
+The service name is generated based on the following:
+
+* For multi log forwarder `ClusterLogForwarder` CR deployments, the service name is in the format `<ClusterLogForwarder_CR_name>-<input_name>`. For the previous example YAML, the service name is `example-syslog-receiver`.
+* For legacy `ClusterLogForwarder` CR deployments, meaning those named `instance` and located in the `openshift-logging` namespace, the service name is in the format `collector-<input_name>`. For the previous example YAML, the service name is `collector-syslog-receiver`.