Hey @Dim,
that’s a nice straight tutorial on authentication! 
I guess you know the similar tutorial by @Benjy utilizing nginx? It also already found it’s way into the OH2 docs: http://docs.openhab.org/configuration/nginx.html
You also promised https. It’s great to have both major webservers covered for these important topics. If you or @Benjy can think of a way to merge the two articles into one, that would be truly amazing 