configured mutli-threading and fixed lxc detection for steps

src/main.py

@@ -1,4 +1,5 @@
 import logging
+import threading
 from pathlib import Path
 
 from .lxc.lxc_utils import load_lxc, get_all_lxcs
@@ -44,7 +45,11 @@ def run(args):
                 load_lxc(content=lxc_file_content, lxc_id=int(lxc_folder), pve=pve)
 
     for lxc in get_all_lxcs():
-        logging.info(f"Loading LXC {lxc.id}")
-        lxc.create()
-        lxc.start()
-        lxc.run_creation()
+        threading.Thread(target=launch_lxc, args=(lxc,)).start()
+
+
+def launch_lxc(lxc):
+    logging.info(f"Loading LXC {lxc.id}")
+    lxc.create()
+    lxc.start()
+    lxc.run_creation()

src/utils/steps_utils.py

@@ -11,14 +11,14 @@ from ..machine.machine import LinuxMachine
 from ..utils import conditions_utils
 
 if TYPE_CHECKING:
-    from ..lxc.lxc import LXC
+    pass
 
 
 def _run_script_step(linux_machine, step):
-    if isinstance(linux_machine, LXC):
+    if "LXC" in str(linux_machine.__class__):
         lxc_utils.run_script_step_parser(linux_machine, step)
     else:
-        logging.warning(f"Script step only supported on LXCs")
+        logging.warning("Script step only supported on LXCs")
     pass
 
 
@@ -27,7 +27,7 @@ def _run_file_create_step(linux_machine, step):
 
 
 def _run_file_copy_step(linux_machine, step):
-    if isinstance(linux_machine, LXC):
+    if "LXC" in str(linux_machine.__class__):
         linux_machine.pve.copy_file_to_lxc(linux_machine, get_path(linux_machine, step["path"]), step["destination"],
                                            step.get("permission", 644), step.get("owner", "root"))
     else: