Bug 1934493

Summary:	[DDF] [OCS 4.6] (DOC] infra=reserved:NoSchedule taint needs to be removed on Infra nodes for OCS install
Product:	[Red Hat Storage] Red Hat OpenShift Container Storage	Reporter:	Direct Docs Feedback <ddf-bot>
Component:	documentation	Assignee:	Anjana Suparna Sriram <asriram>
Status:	NEW ---	QA Contact:	Elad <ebenahar>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	4.6
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Description Direct Docs Feedback 2021-03-03 11:16:12 UTC

For UPI installations, it is suggested to have label and taints for Infra nodes.
# oc label node  node-role.kubernetes.io/infra=

# oc adm taint nodes -l node-role.kubernetes.io/infra infra=reserved:NoSchedule infra=reserved:NoExecute

Reference : https://access.redhat.com/solutions/5034771

However if we have the above taints, OCS storagecluster installation will not progress as we don't have any toleration added against it.

We need to add a note in this WARNING section that if Infra nodes have the taint, it has to be removed.
Simply any taint other than node.ocs.openshift.io/storage="true":NoSchedule has to be removed.

# oc adm taint nodes  infra=reserved:NoExecute-
# oc adm taint nodes  infra=reserved:NoSchedule-


Reported by: rhn-support-dkochuka

https://access.redhat.com/documentation/en-us/red_hat_openshift_container_storage/4.6/html/managing_and_allocating_storage_resources/how-to-use-dedicated-worker-nodes-for-openshift-container-storage_rhocs#annotations:62bf1e82-0bdf-4b5e-9433-f9010fcc2935

Comment 3 Eran Tamir 2022-03-03 09:49:59 UTC