update ioc_check.py - automatically create missing datasets with prefix

iocage_lib/ioc_check.py

@@ -58,9 +58,9 @@ def __init__(
         self.__check_datasets__()
 
         self.pool_root_dataset = Dataset(self.pool, cache=reset_cache)
-        prefix = self.pool_root_dataset.properties.get(IOCAGE_PREFIX_PROP, '')
+        self.prefix = self.pool_root_dataset.properties.get(IOCAGE_PREFIX_PROP, '')
         self.iocage_dataset = Dataset(
-            os.path.join(self.pool, prefix, 'iocage'), cache=reset_cache
+            os.path.join(self.pool, self.prefix, 'iocage'), cache=reset_cache
         )
 
         if migrate:
@@ -88,6 +88,10 @@ def __check_datasets__(self):
         datasets = ("iocage", "iocage/download", "iocage/images",
                     "iocage/jails", "iocage/log", "iocage/releases",
                     "iocage/templates")
+        if self.prefix != '':
+            datasets = (
+                os.path.join(self.prefix, ioc_ds) for ioc_ds in datasets
+            )
 
         for dataset in datasets:
             zfs_dataset_name = f"{self.pool}/{dataset}"