icinga2/tools/syntax/vim/README

Icinga 2 Configuration Vim Syntax Highlighting
==============================================

$ PREFIX=~/.vim
$ mkdir -p $PREFIX/{syntax,ftdetect}
$ cp syntax/icinga2.vim $PREFIX/syntax/
$ cp ftdetect/icinga2.vim $PREFIX/ftdetect/

Modify 'ftdetect/icinga2.vim' if your configuration isn't located in
'/etc/icinga2'.

Now test it :-)

$ vim /etc/icinga2/conf.d/templates.conf