Can Salt (Saltstack) gather and relay data for Graphite, Ganglia, or Zenoss

I encountered the same issue using that same puppet module. I'm not exactly sure why, but changing the default retention policy appears to fix it, e.g.

class { 'graphite':
  gr_storage_schemas => [
    {
      name       => 'carbon',
      pattern    => '^carbon\.',
      retentions => '1m:90d'
    },
    {
      name       => 'default',
      pattern    => '.*',
      retentions => '1m:14d'
    }
  ],
}

You can get a listing of the directory you want by calling the file.find module, and since you have a list of the files you want to manage, you can delete the files that are not in the list of files to manage.

Here's some code adapted from a state file I had to manage /etc/yum.repos.d. I'm going to assume your files to manage are from pillar, and they are keys to a dict, with the values being the rest of the data that goes into rendering the file.

{% set site_dir = '/etc/nginx/sites-available/' %}
{% set sites = salt['pillar.get']('nginx_sites',{}) %}
{% set site_files = salt['file.find'](site_dir,type='f',print='name',maxdepth=0) %}
{% for site_file in site_files %}
{%   if site_file not in sites %}
delete-old-{{ site_file }}:
  file.absent:
    - name: {{ site_dir }}/{{ site_file }}
{%   endif %}
{% endfor %}
{# then go through the sites and manage the files... #}
{% for site in sites %}
manage-site-file-{{ site_file }}:
  file.managed:
    - name: {{ site_dir }}/{{ site }}
    - source: salt://nginx/files/site-file.conf
    - template: jinja
{% endfor %}