pxe:
  nodes:
    sn5:
      base: /node_roots/sn1_sn24
      stor_mac: xxx
      etc: jjjj
    sn4:
      base: /bla

# inside sls
{% for node_name, node_data in pxe.nodes %}
{{node_name}} dir:
  file.directory:
    - name: {{ node_data.base}}/{{node_name }}
{% endfor %}