Fix pkg import and kind version problem

Signed-off-by: Tyler Gu <[email protected]>

acto/kubernetes_engine/kind.py

@@ -2,7 +2,7 @@
 import os
 import subprocess
 import time
-from typing import Any, Dict, List
+from typing import Any, Dict, List, Optional
 
 import kubernetes
 import yaml
@@ -22,7 +22,7 @@ def __init__(
         posthooks: List[base.KubernetesEnginePostHookType] = None,
         feature_gates: Dict[str, bool] = None,
         num_nodes=1,
-        version="",
+        version: Optional[str] = None,
     ):
         self._config_path = os.path.join(
             CONST.CLUSTER_CONFIG_FOLDER, f"KIND-{acto_namespace}.yaml"
@@ -108,7 +108,8 @@ def create_cluster(self, name: str, kubeconfig: str):
 
         cmd.extend(["--config", self._config_path])
 
-        cmd.extend(["--image", f"kindest/node:{self._k8s_version}"])
+        if self._k8s_version:
+            cmd.extend(["--image", f"kindest/node:{self._k8s_version}"])
 
         p = subprocess.run(cmd, check=False)
         i = 0

chactos/fault_injections.py

@@ -7,7 +7,6 @@
 
 import kubernetes
 import yaml
-from failures.network_chaos import OperatorApplicationPartitionFailure
 
 from acto import constant
 from acto.common import kubernetes_client
@@ -20,6 +19,7 @@
 from acto.system_state.kubernetes_system_state import KubernetesSystemState
 from acto.utils import acto_timer
 from acto.utils.preprocess import process_crd
+from chactos.failures.network_chaos import OperatorApplicationPartitionFailure
 
 
 def load_inputs_from_dir(dir_: str) -> list[object]: