pillar.sls

salt:
  mirrors:
    - ftp.us.debian.org
    - ftp.uk.debian.org
    - ftp.ua.debian.org
  locations:
    - us
    - uk
    - ua

state.sls

{%- from "salt/map.jinja" import salt with context %}

{% for location in salt.locations %}
salt_mirror:
  file.managed:
    - name: /srv/salt/mirror_{{ location }}.conf
    - source: salt://saltstack/files/myfile.conf.j2
    - template: jinja
    - user: root
    - group: root
    - mode: 0600
  {%- for mirror in saltstack.mirrors %}
    {%- if location in mirror %}
    - master: {{ mirror }}
    {%- else %}
    - master: ftp.debian.org
    {%- endif %}
  {%- endfor %}
{% endfor %}