PMM authority management

Can not implement grafnana internal user management login, log directly from nginx

Hi liuqian,

before 1.1.2 we had two different credentials.
the first login/pass pair for prometheus and for http.
the second one for grafana.

after 1.1.2 we have only one login/pass pair for all services (prometheus/grafana/http).

anyway, we are going to create more smart authentification with admin/read-write/read-only privileges.
feel free to add any ideas in “user stories” format to this topic - https://en.wikipedia.org/wiki/User_story
I will post your ideas directly to developers ticket.