librecipe: stop calling getInstanceParameterDict by default

Call it only on demand, to get rid of useless http queries

slapos/recipe/librecipe/__init__.py

@@ -264,7 +264,12 @@ class BaseSlapRecipe:
     self.request = self.computer_partition.request
     self.setConnectionDict = self.computer_partition.setConnectionDict
     self._createDefaultDirectoryStructure()
-    self.parameter_dict = self.computer_partition.getInstanceParameterDict()
+
+    # Lazy load of the instance parameter dict
+    # to prevent an http calls if not needed
+    @property
+    def parameter_dict(self):
+      return self.computer_partition.getInstanceParameterDict()
 
     # call children part of install
     path_list = self._install()

slapos/recipe/librecipe/genericslap.py

@@ -66,7 +66,12 @@ class GenericSlapRecipe(GenericBaseRecipe):
 
     self.request = self.computer_partition.request
     self.setConnectionDict = self.computer_partition.setConnectionDict
-    self.parameter_dict = self.computer_partition.getInstanceParameterDict()
+
+    # Lazy load of the instance parameter dict
+    # to prevent an http calls if not needed
+    @property
+    def parameter_dict(self):
+      return self.computer_partition.getInstanceParameterDict()
 
     # call children part of install
     path_list = self._install()