add support for present/absent

zfs/fs.sls

@@ -2,6 +2,7 @@
 
 {% for zfs_dataset in zfs.get('fs', ()) %}
 zfs_dataset_{{ loop.index0 }}:
+  {% if zfs_dataset.present|default(True) %}
   zfs.filesystem_present:
     - name: {{ zfs_dataset.dataset }}
     {%- if zfs_dataset.get('properties') %}
@@ -12,4 +13,8 @@ zfs_dataset_{{ loop.index0 }}:
     - require:
       - zfs: zfs_dataset_{{ loop.index0 - 1 }}
     {%- endif %}
+  {% else %}
+  zfs.filesystem.absent:
+    - name: {{ zfs_dataset.dataset }}
+  {% endif %}
 {% endfor %}