How do I specify the value of a dashboard variable in a url when calling grafana-image-renderer?

[rcowham]

What would you like to be added:

I would like it to be implemented/documented how to render a specific Grafana dashboard panel when its containing dashboard has variables (and I want to render with something other than the default value of the variable!)

Why is this needed:

For automation of reports where there are variables in the containing dashboard.

[joanlopez]

Hi @rcowham,

Have you tried to specify the values of those variables in the URL?
It should work by passing the variables as URL parameters with the prefix var, like:
<url-to-your-dashboard>?var-host=myhost&var-instance=myinstance - for host and instance variables.

Thanks!

[rcowham]

Thanks - that works.