Description of problem:

tls: failed to verify certificate: x509: certificate signed by unknown authority error msg's in submariner-lighthouse-agent pod

Version-Release number of selected component (if applicable):

ACM:- 2.9

submariner:- 0.16.0 (image tag brew.registry.redhat.io/rh-osbs/iib:594788)

How reproducible:

Steps to Reproduce:

1. Deploy RDR cluster using OpenshiftSDN
2. Run workload 
3. Restart worker node
4. check logs of submariner-lighthouse-agent pod

Actual results:

E1016 14:50:51.886268       1 queue.go:106] Local ServiceImport: Failed to process object with key "submariner-operator/volsync-rsync-tls-dst-busybox-pvc-15-e4-appset-ns-dnd-prsurve-dev-1" using function (workqueue.ProcessFunc)(0x13e4ae0): error distributing resource "submariner-operator/volsync-rsync-tls-dst-busybox-pvc-15-e4-appset-ns-dnd-prsurve-dev-1": error creating or updating resource: error retrieving "volsync-rsync-tls-dst-busybox-pvc-15-e4-appset-ns": Get "https://##redacted-api-server##/apis/multicluster.x-k8s.io/v1alpha1/namespaces/submariner-broker/serviceimports/volsync-rsync-tls-dst-busybox-pvc-15-e4-appset-ns": tls: failed to verify certificate: x509: certificate signed by unknown authority

Expected results:

There should not be any failure

Additional info: