Local rendering not working

[Svonn]

Setting

[external_image_storage]
provider = local

Resulting in Phantomjs exiting with exitcode 127

t=2018-07-05T10:50:10+0000 lvl=info msg=Rendering logger=rendering path="d-solo/000000006/monitoring?panelId=11"
t=2018-07-05T10:50:10+0000 lvl=eror msg="Phantomjs exited with non zero exit code" logger=rendering error="exit status 127"
t=2018-07-05T10:50:10+0000 lvl=eror msg="Failed to upload alert panel image." logger=alerting.notifier error="exit status 127"

According to this:
ariya/phantomjs#13597

The build might be missing libfreetype6 and libfontconfig

[mrsiano]

please try
https://github.com/openshift/openshift-ansible/tree/master/roles/openshift_grafana
or
https://github.com/openshift/cluster-monitoring-operator