I have 3 customers namely a,b,c.
Log format among the above three customers are same.
I have an index called customer-a, customer-b, customer-c in my elasticsearch and also created an alias index called customer-*.
Having mentioned, I have created visuals and dashboard(say home_dashboard) using customer-* index.
So now, I am able to view all three customers data(since i used customer-* index) in visuals and dashboard(home_dashboard).
Now, all three customers want to see and analyze their data.
I can create a user with view dashboard only access and assign access only to their index.
For ex., User a is created (for customer a) and is given access only to customer-a index and view access to dashboard(home_dashboard).
Though index are different how do I make sure customer a,b,c view only their data and not other customers data? (all customers share the same home_dashboard template)