Fix GrafanaBox Cert Error

If you are using Helm/Grafana and OpenNMS is not able to validate the certificate chain on the Grafana instance, you may get the following message on your home page:

Grafana Dashboards
🔧 PKIX path building failed: unable to find valid certification path to requested target

The fix for this is to make sure the server’s trust store has the proper root certificate for your certificate authority.


  • Copy the .crt file to /etc/pki/ca-trust/source/anchors on your server
  • run update-ca-trust extract


  • Copy the .crt file to /usr/local/share/ca-certificates/ on your server
  • run update-ca-certificates

This should allow the system to properly verify the server certificates for displaying Grafana dashboards on your OpenNMS home page.