How to query datasources that are LDAP authenticated from Grafana Dashboards

Hi,
How to query datasources that are LDAP authenticated from Grafana Dashboards?
For example: I have a Graphite as my datasource and my graphite is LDAP authenticated. Each time I refresh the grafana dashboard it prompts me to provide the ldap authentication for graphite. How to handle such scenarios?

Regards,
Divya