Fix bug #32437 (#38166)

(cherry picked from commit 71952a0aad)

changelogs/fragments/lxd-idempotent-config.yaml

@@ -0,0 +1,4 @@
+---
+bugfixes:
+- Fix lxd module to be idempotent when the given configuration for the lxd
+  container has not changed (https://github.com/ansible/ansible/pull/38166)

lib/ansible/modules/cloud/lxd/lxd_container.py

@@ -457,9 +457,13 @@ class LXDContainerManagement(object):
             return False
         if key == 'config':
             old_configs = dict((k, v) for k, v in self.old_container_json['metadata'][key].items() if not k.startswith('volatile.'))
+            for k, v in self.config['config'].items():
+                if old_configs[k] != v:
+                    return True
+            return False
         else:
             old_configs = self.old_container_json['metadata'][key]
-        return self.config[key] != old_configs
+            return self.config[key] != old_configs
 
     def _needs_to_apply_container_configs(self):
         return (