Fixes public dashboards bug. When panel targets have no datasource, the datasource on the panel can be a json object or a string and will get added to the targets for pubdash.
* passes id and uid to PublicDashboardDatasource
* betterer results
* If for a public dashboard, return the PublicDashboardDataSource first or else getDatasourceSrv.get() will fail bc of no authed user.
Added some unit tests for resolving the uid from the many possible datasource types.
* updates betterer
* Exports DashboardService. Adds method to DashboardService to build anonymous user for use with public dashboards where there is no authed user. Adds method on dashboard_queries to get all dashboard uids from a dashboard.
* refactors to get unique datasource uids
* Adds tests for getting all unique datasource uids off a dashboard
* adds test for building anonymous user with read and query actions that are scoped to each datasource uid in the dashboard
* updates casing of DashboardService
* updates test case to have additional panel with a different datasource
* gives default interval to public dashboard data source
This PR adds endpoints for public dashboards to retrieve data from the backend (trusted) query engine. It works by executing queries defined on the backend without any user input and does not support template variables.
* Public dashboard query API
* Create new API on service for building metric request
* Flesh out testing, implement BuildPublicDashboardMetricRequest
* Test for errors and missing panels
* Refactor tests, add supporting code for multiple datasources
* Handle queries from multiple datasources
* Explicitly pass no user for querying public dashboard
Co-authored-by: Jeff Levin <jeff@levinology.com>
