Separate users in Kibana interface

[frestr]

As it is now, all users can see each other's probe data if they manually change the query string. Some users do not like this.

A way of solving this can be to use Kibana Shield, but that's too expensive just for such a simple feature.

Another option is to put the dashboard inside an iframe and embed it on the website itself. The upside of doing it this way is that the user does not need to leave the current site, and only the dashboard is shown (without search and side bar).

The downside is that if the user is not already authenticated with feide, the iframe will redirect to the full kibana interface after logging in, which removes the whole point of embedding it. We had issues with this on the current Kibana instance too, but that was solved by modifying the web server config. All data is also strictly speaking still available, as users can manually change the embedded url. Furthermore, it is quite limiting for users to not be able to search for more specific data, chang the data interval etc.