Can backup vm disks as images

virtweb_backend/src/controllers/disk_images_controller.rs

@@ -1,6 +1,8 @@
 use crate::app_config::AppConfig;
 use crate::constants;
-use crate::controllers::HttpResult;
+use crate::controllers::{HttpResult, LibVirtReq};
+use crate::libvirt_lib_structures::XMLUuid;
+use crate::libvirt_rest_structures::vm::VMInfo;
 use crate::utils::file_disks_utils::{DiskFileFormat, DiskFileInfo};
 use crate::utils::files_utils;
 use actix_files::NamedFile;
@@ -107,6 +109,61 @@ pub async fn convert(
         return Ok(HttpResponse::BadRequest().json("Invalid src file name!"));
     }
 
+    let src_file_path = AppConfig::get()
+        .disk_images_storage_path()
+        .join(&p.filename);
+
+    let src = DiskFileInfo::load_file(&src_file_path)?;
+
+    handle_convert_request(src, &req).await
+}
+
+#[derive(serde::Deserialize)]
+pub struct BackupVMDiskPath {
+    uid: XMLUuid,
+    diskid: String,
+}
+
+/// Perform disk backup
+pub async fn backup_disk(
+    client: LibVirtReq,
+    path: web::Path<BackupVMDiskPath>,
+    req: web::Json<ConvertDiskImageRequest>,
+) -> HttpResult {
+    // Get the VM information
+    let info = match client.get_single_domain(path.uid).await {
+        Ok(i) => i,
+        Err(e) => {
+            log::error!("Failed to get domain info! {e}");
+            return Ok(HttpResponse::InternalServerError().json(e.to_string()));
+        }
+    };
+
+    let vm = VMInfo::from_domain(info)?;
+
+    // Load disk information
+    let Some(disk) = vm
+        .file_disks
+        .into_iter()
+        .find(|disk| disk.name == path.diskid)
+    else {
+        return Ok(HttpResponse::NotFound()
+            .json(format!("Disk {} not found for vm {}", path.diskid, vm.name)));
+    };
+
+    let src_path = disk.disk_path(vm.uuid.expect("Missing VM uuid!"));
+    let src_disk = DiskFileInfo::load_file(&src_path)?;
+
+    // Perform conversion
+    handle_convert_request(src_disk, &req).await
+}
+
+/// Generic controller code that performs image conversion to create a disk image file
+pub async fn handle_convert_request(
+    src: DiskFileInfo,
+    req: &ConvertDiskImageRequest,
+) -> HttpResult {
+    // Check destination file
     if !files_utils::check_file_name(&req.dest_file_name) {
         return Ok(HttpResponse::BadRequest().json("Invalid destination file name!"));
     }
@@ -119,12 +176,6 @@ pub async fn convert(
         return Ok(HttpResponse::BadRequest().json("Invalid destination file extension!"));
     }
 
-    let src_file_path = AppConfig::get()
-        .disk_images_storage_path()
-        .join(&p.filename);
-
-    let src = DiskFileInfo::load_file(&src_file_path)?;
-
     let dst_file_path = AppConfig::get()
         .disk_images_storage_path()
         .join(&req.dest_file_name);
@@ -141,7 +192,7 @@ pub async fn convert(
         );
     }
 
-    Ok(HttpResponse::Ok().json(src))
+    Ok(HttpResponse::Accepted().json("Successfully converted disk file"))
 }
 
 /// Delete a disk image

virtweb_backend/src/main.rs

@@ -356,6 +356,10 @@ async fn main() -> std::io::Result<()> {
                 "/api/disk_images/{filename}",
                 web::delete().to(disk_images_controller::delete),
             )
+            .route(
+                "/api/vm/{uid}/disk/{diskid}/backup",
+                web::post().to(disk_images_controller::backup_disk),
+            )
             // API tokens controller
             .route(
                 "/api/token/create",

virtweb_backend/src/utils/vm_file_disks_utils.rs

@@ -93,7 +93,7 @@ impl VMFileDisk {
         Ok(())
     }
 
-    /// Get disk path
+    /// Get disk path on file system
     pub fn disk_path(&self, id: XMLUuid) -> PathBuf {
         let domain_dir = AppConfig::get().vm_storage_path(id);
         let file_name = match self.format {