OCPBUGS-5740: Adding step for single-node OpenShift

Author: lahinson

modules/restore-replace-crashlooping-etcd-member.adoc

@@ -222,6 +222,14 @@ $ oc patch etcd/cluster --type=merge -p '\{"spec": {"unsupportedConfigOverrides"
 $ oc get etcd/cluster -oyaml
 ----
 
+. If you are using {sno}, restart the node. Otherwise, you might encounter the following error in the etcd cluster Operator:
++
+.Example output
+[source,terminal]
+----
+EtcdCertSignerControllerDegraded: [Operation cannot be fulfilled on secrets "etcd-peer-sno-0": the object has been modified; please apply your changes to the latest version and try again, Operation cannot be fulfilled on secrets "etcd-serving-sno-0": the object has been modified; please apply your changes to the latest version and try again, Operation cannot be fulfilled on secrets "etcd-serving-metrics-sno-0": the object has been modified; please apply your changes to the latest version and try again]
+----
+
 .Verification
 
 * Verify that the new member is available and healthy.

modules/restore-replace-stopped-baremetal-etcd-member.adoc

@@ -554,6 +554,14 @@ $ oc patch etcd/cluster --type=merge -p '\{"spec": {"unsupportedConfigOverrides"
 $ oc get etcd/cluster -oyaml
 ----
 
+. If you are using {sno}, restart the node. Otherwise, you might encounter the following error in the etcd cluster Operator:
++
+.Example output
+[source,terminal]
+----
+EtcdCertSignerControllerDegraded: [Operation cannot be fulfilled on secrets "etcd-peer-sno-0": the object has been modified; please apply your changes to the latest version and try again, Operation cannot be fulfilled on secrets "etcd-serving-sno-0": the object has been modified; please apply your changes to the latest version and try again, Operation cannot be fulfilled on secrets "etcd-serving-metrics-sno-0": the object has been modified; please apply your changes to the latest version and try again]
+----
+
 .Verification
 
 . Verify that all etcd pods are running properly.
@@ -639,4 +647,4 @@ $ oc get etcd -o=jsonpath='{range.items[0].status.conditions[?(@.type=="NodeInst
 +
 ----
 AllNodesAtLatestRevision
-----
+----

modules/restore-replace-stopped-etcd-member.adoc

@@ -330,6 +330,14 @@ $ oc patch etcd/cluster --type=merge -p '\{"spec": {"unsupportedConfigOverrides"
 $ oc get etcd/cluster -oyaml
 ----
 
+. If you are using {sno}, restart the node. Otherwise, you might encounter the following error in the etcd cluster Operator:
++
+.Example output
+[source,terminal]
+----
+EtcdCertSignerControllerDegraded: [Operation cannot be fulfilled on secrets "etcd-peer-sno-0": the object has been modified; please apply your changes to the latest version and try again, Operation cannot be fulfilled on secrets "etcd-serving-sno-0": the object has been modified; please apply your changes to the latest version and try again, Operation cannot be fulfilled on secrets "etcd-serving-metrics-sno-0": the object has been modified; please apply your changes to the latest version and try again]
+----
+
 .Verification
 
 . Verify that all etcd pods are running properly.
@@ -392,4 +400,4 @@ If the output from the previous command lists more than three etcd members, you
 [WARNING]
 ====
 Be sure to remove the correct etcd member; removing a good etcd member might lead to quorum loss.
-====
+====