Add option to restore using syncoid

playbooks/roles/backups/snapshots/setup/files/syncoid-batch

@@ -6,17 +6,24 @@ import subprocess
 import yaml
 
 
-def load_and_validate_config_dir(config_dir):
+class BatchManager:
+
+    def __init__(self, config_dir):
+        self.__config_list = BatchManager.__load_and_validate_config_dir(config_dir)
+
+    @staticmethod
+    def __load_and_validate_config_dir(config_dir):
         if not os.path.isdir(config_dir):
             raise ValueError(f"{config_dir} is not a directory")
 
         return [
-        load_and_validate_config_file(os.path.join(config_dir, file))
+            BatchManager.__load_and_validate_config_file(os.path.join(config_dir, file))
             for file in os.listdir(config_dir)
         ]
 
 
-def load_and_validate_config_file(config_file_path):
+    @staticmethod
+    def __load_and_validate_config_file(config_file_path):
         if not os.path.isfile(config_file_path):
             raise ValueError(f"{config_file_path} is not a file")
 
@@ -29,23 +36,15 @@ def load_and_validate_config_file(config_file_path):
 
         return config
 
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser(description="Backup service data using syncoid")
-    parser.add_argument("--config-dir", type=str, default="/etc/syncoid-batch.d",
-                        help="Path to directory with YAML config files")
-    args = parser.parse_args()
-
-    config_list = load_and_validate_config_dir(args.config_dir)
-
-    for config in config_list:
-        syncoid_cmd = ["/usr/sbin/syncoid", "--no-sync-snap"]
+    def __exec(self, source_key, destination_key):
+        for config in self.__config_list:
+            syncoid_cmd = ["/usr/sbin/syncoid", "--no-sync-snap", "--preserve-properties"]
             if config.get("recursive", False):
                 syncoid_cmd.append("--recursive")
             if config.get("skip_parent", False):
                 syncoid_cmd.append("--skip-parent")
-        syncoid_cmd.append(config["dataset"])
-        syncoid_cmd.append(config["backup_dataset"])
+            syncoid_cmd.append(config[source_key])
+            syncoid_cmd.append(config[destination_key])
 
             try:
                 subprocess.run(syncoid_cmd, check=True,
@@ -53,3 +52,27 @@ if __name__ == "__main__":
             except subprocess.CalledProcessError as err:
                 print(err.stdout.decode("ascii"), flush=True)
                 raise
+
+    def backup(self):
+        self.__exec("dataset", "backup_dataset")
+
+    def restore(self):
+        self.__exec("backup_dataset", "dataset")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Backup service data using syncoid")
+    parser.add_argument("--config-dir", type=str, default="/etc/syncoid-batch.d",
+                        help="Path to directory with YAML config files")
+
+    subparsers = parser.add_subparsers()
+
+    backup_parser = subparsers.add_parser("backup")
+    backup_parser.set_defaults(func=BatchManager.backup)
+
+    restore_parser = subparsers.add_parser("restore")
+    restore_parser.set_defaults(func=BatchManager.restore)
+
+    args = parser.parse_args()
+
+    args.func(BatchManager(args.config_dir))

playbooks/roles/backups/snapshots/setup/templates/syncoid-batch.service

@@ -7,7 +7,7 @@ OnFailure=status-mail@%n.service
 
 [Service]
 Type=oneshot
-ExecStart=/usr/local/sbin/syncoid-batch --config-dir {{ system_etc_root_directory }}/syncoid-batch.d
+ExecStart=/usr/local/sbin/syncoid-batch --config-dir {{ system_etc_root_directory }}/syncoid-batch.d backup
 
 [Install]
 WantedBy=sanoid.service