Is it possible to configure SSRS 2016 in a scaled-out configuration across multi-data centres that are geographically separated?
The SQL Server instances will be configured with AOAG across the 3 nodes and 2 data centres and the SSRS will be scaled out in a similar way. SQL C would be a manual failover, whereas SQL A and B would be auto. I've put together a simple diagram
to try and explain it a little better.
Or would it be simpler to copy SSRS encryption key over the SSRS C and manually configure to point to the SSRS AOAG databases in the event of a failure?