Grafana Proxy — authorizer reason: no RBAC policy matched in Openshift

I was trying to login to Grafana and Prometheus, but throw me error 403 and saw in grafana-proxy the next error:

ZatoryPrivate

The solution is:

# ssh to master. Replace username for you user.
$ oc login -u system:admin
$ oc adm policy add-cluster-role-to-user cluster-monitoring-view username

Well it’s all.

[Openshift 3.11]

Cheers! :)