--- a/src/command.rs	Fri Nov 27 20:32:06 2020 +0900
+++ b/src/command.rs	Tue Dec 08 17:15:34 2020 +0900
@@ -67,6 +67,11 @@
     virsh::subshell_virsh_command(&vm_name, operation);
 }
 
+pub fn vol_delete(user_name: &str, vm_name: &str, operation: &str) {
+    let vm_name = exec_cmd_from_name_or_id(user_name, vm_name);
+    virsh::virsh_vol_delete_command(&vm_name, operation);
+}
+
 pub fn exec(user_name: &str, vm_name: &str, operation: &str) {
     let vm_name = exec_cmd_from_name_or_id(user_name, vm_name);
     virsh::exec_virsh_command(&vm_name, operation);

--- a/src/main.rs	Fri Nov 27 20:32:06 2020 +0900
+++ b/src/main.rs	Tue Dec 08 17:15:34 2020 +0900
@@ -180,6 +180,7 @@
         SubCommand::Undefine(arg) => {
             user::set_root_id();
             command::subshell(&user_name, &arg.name, "undefine");
+            command::vol_delete(&user_name, &arg.name, "vol-delete");
         }
 
         SubCommand::Domiflist(arg) => {

--- a/src/virsh.rs	Fri Nov 27 20:32:06 2020 +0900
+++ b/src/virsh.rs	Tue Dec 08 17:15:34 2020 +0900
@@ -9,6 +9,7 @@
 const TEMPLATE_DIR: &str = "/ie-ryukyu/kvm/images/templates/";
 const TEMPLATE_SUFFIX: &str = "template-";
 const TEMPLATE_FILE_EXTENSION: &str = ".qcow2";
+const TEMPLATE_POOL: &str = "rental";
 const QCOW2: &str = "qcow2";
 
 pub struct ListDumpMsg {
@@ -70,6 +71,19 @@
     io::stderr().write_all(&output.stderr).unwrap();
 }
 
+pub fn virsh_vol_delete_command(vm_name: &str, operation: &str) {
+    let output = Command::new("virsh")
+        .arg(operation)
+        .arg("--pool")
+        .arg(TEMPLATE_POOL)
+        .arg(vm_name)
+        .output()
+        .unwrap_or_else(|_| panic!("failed to {}", operation));
+
+    io::stdout().write_all(&output.stdout).unwrap();
+    io::stderr().write_all(&output.stderr).unwrap();
+}
+
 pub fn exec_virsh_command(vm_name: &str, operation: &str) {
     let err = Command::new("virsh").arg(operation).arg(vm_name).exec();
     println!("after exec !!{}", err);