Set fields to None instead of Some(empty map) (#398)

Author: razvan

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+### Changed
+
+- `impl Into<Resourcerequirements> for Resources` set's fields to `None` instead of `Some(<empty map>)` when nothing is defined.([#398]).
+
+[#398]: https://github.com/stackabletech/operator-rs/pull/398
+
 ## [0.20.0] - 2022-05-13
 
 ### Added

src/commons/resources.rs

@@ -196,8 +196,16 @@ where
         }
 
         ResourceRequirements {
-            limits: Some(limits),
-            requests: Some(requests),
+            limits: if limits.is_empty() {
+                None
+            } else {
+                Some(limits)
+            },
+            requests: if requests.is_empty() {
+                None
+            } else {
+                Some(requests)
+            },
         }
     }
 }