server is named public
salt-call state.highstate and test.ping work fine

pillar/top.sls:
-------------
base:
  '*':
    - global
dev:
  'dybbuk*':
    - dy_dev
pub:
  'public':
    - nginx

pillar/pub/nginx.sls
-------------
nginx:
  sites:
    - foo.com
    - bar.com

pillar_roots
-------------
pillar_roots:
  base:
    - /srv/pillar
  dev:
    - /srv/pillar/dev
  public:
    - /srv/pillar/pub