Add size validations for volume clones

Adds the same validations as a volume add or resize to volume clones, to
ensure there is enough free space for them.

api-daemon/pvcapid/flaskapi.py

@@ -5972,7 +5972,11 @@ class API_Storage_Ceph_Volume_Element_Clone(Resource):
                 "name": "new_volume",
                 "required": True,
                 "helptext": "A new volume name must be specified.",
-            }
+            },
+            {
+                "name": "force",
+                "required": False,
+            },
         ]
     )
     @Authenticator
@@ -5988,6 +5992,12 @@ class API_Storage_Ceph_Volume_Element_Clone(Resource):
             type: string
             required: true
             description: The name of the new cloned volume
+          - in: query
+            name: force
+            type: boolean
+            required: false
+            default: flase
+            description: Force action if clone volume size would violate 80% full soft cap on the pool
         responses:
           200:
             description: OK
@@ -6006,7 +6016,7 @@ class API_Storage_Ceph_Volume_Element_Clone(Resource):
               id: Message
         """
         return api_helper.ceph_volume_clone(
-            pool, reqargs.get("new_volume", None), volume
+            pool, reqargs.get("new_volume", None), volume, reqargs.get("force", None)
         )
 
 

api-daemon/pvcapid/helper.py

@@ -1887,11 +1887,13 @@ def ceph_volume_add(zkhandler, pool, name, size, force_flag):
 
 
 @ZKConnection(config)
-def ceph_volume_clone(zkhandler, pool, name, source_volume):
+def ceph_volume_clone(zkhandler, pool, name, source_volume, force_flag):
     """
     Clone a Ceph RBD volume to a new volume on the PVC Ceph storage cluster.
     """
-    retflag, retdata = pvc_ceph.clone_volume(zkhandler, pool, source_volume, name)
+    retflag, retdata = pvc_ceph.clone_volume(
+        zkhandler, pool, source_volume, name, force_flag=force_flag
+    )
 
     if retflag:
         retcode = 200