tm/snap_create_live: implement (copy from snap_create)

tm/snap_create_live

@@ -20,14 +20,33 @@ limitations under the License.
 
 import sys
 
-from one import util
+from linstor import Resource
+from one import consts, util, vm
+from one.datastore import Datastore
+
+SRC = sys.argv[1]
+SNAP_ID = sys.argv[2]
+VM_ID = int(sys.argv[3])
+DS_ID = sys.argv[4]
 
 
 def main():
     util.log_info("Entering tm/snap_create_live")
-    util.log_info("Operation not supported!")
-    util.log_info("Entering tm/snap_create_live")
-    sys.exit(1)
+    disk_id = SRC.split(".")[-1].strip()
+    snap_id = util.arg_host(SNAP_ID).strip()
+
+    datastore = Datastore(util.show_ds(DS_ID))
+
+    target_vm = vm.Vm(util.show_vm(VM_ID))
+
+    res_name = target_vm.disk_source(disk_id)
+    if target_vm.disk_persistent(disk_id) != "YES":
+        res_name = "{}-vm{}-disk{}".format(res_name, VM_ID, disk_id)
+
+    res = Resource(name=res_name, uri=datastore.linstor_controllers)
+
+    res.snapshot_create("{}-{}".format(consts.SNAP_PREFIX, snap_id))
+    util.log_info("Exiting tm/snap_create_live")
 
 
 if __name__ == "__main__":