Chapter 13. Managing container storage interface (CSI) component placements

Procedure

1. Edit the configmap to add the toleration for the custom taint. Remember to save before exiting the editor.

   $ oc edit configmap rook-ceph-operator-config -n openshift-storage

2. Display the configmap to check the added toleration.

   $ oc get configmap rook-ceph-operator-config -n openshift-storage -o yaml

   Example output of the added toleration for the taint, nodetype=infra:NoSchedule :

   apiVersion: v1
   data:
   [...]
     CSI_PLUGIN_TOLERATIONS: |
       - key: nodetype
         operator: Equal
         value: infra
         effect: NoSchedule
       - key: node.ocs.openshift.io/storage
         operator: Equal
         value: "true"
         effect: NoSchedule
   [...]
   kind: ConfigMap
   metadata:
   [...]

   Note

   Ensure that all non-string values in the Tolerations value field has double quotation marks. For example, the values true which is of type boolean, and 1 which is of type int must be input as "true" and "1".

3. Restart the rook-ceph-operator if the csi-cephfsplugin-* and csi-rbdplugin-* pods fail to come up on their own on the infra nodes.

   $ oc delete -n openshift-storage pod <name of the rook_ceph_operator pod>

   Example :

   $ oc delete -n openshift-storage pod rook-ceph-operator-5446f9b95b-jrn2j
   
   pod "rook-ceph-operator-5446f9b95b-jrn2j" deleted