Fluentd pods are failing with "permission denied" errors

Issue

• Fluentd pods are failing with permission denied errors
• Pod logs shows:

sed: couldn't open temporary file /etc/fluent/configs.d/sedQf05Gd: Permission denied
sed: couldn't open temporary file /etc/fluent/configs.d/openshift/sedLJE9Ld: Permission denied
sed: couldn't open temporary file /etc/fluent/configs.d/openshift/sed6j1Byd: Permission denied
WARNING: Unable to check for cri-o
rm: cannot remove '/etc/fluent/configs.d/openshift/output-operations.conf': Permission denied

• journalctl logs shows:

Jul 10 05:16:21 cen1-ocpnod03 atomic-openshift-node[12709]: E0710 05:16:21.834033   12709 pod_workers.go:186] Error syncing pod bc4202d4-812c-11e8-8880-005056a07a77 ("logging-fluentd-klcb6_logging(bc4202d4-812c-
11e8-8880-005056a07a77)"), skipping: failed to "StartContainer" for "fluentd-elasticsearch" with CrashLoopBackOff: "Back-off 5m0s restarting failed container=fluentd-elasticsearch pod=logging-fluentd-klcb6_loggi
ng(bc4202d4-812c-11e8-8880-005056a07a77)"