Replace blocking IO with async IO in AsyncKubernetesHook (apache#35162)

* Replace blocking IO with async IO in AsyncKubernetesHook

* Use aiofiles.NamedTemporaryFile with default mode

* Minor update

* Minor update

airflow/providers/cncf/kubernetes/hooks/kubernetes.py

@@ -22,6 +22,7 @@
 from functools import cached_property
 from typing import TYPE_CHECKING, Any, Generator
 
+import aiofiles
 from asgiref.sync import sync_to_async
 from kubernetes import client, config, watch
 from kubernetes.config import ConfigException
@@ -502,13 +503,13 @@ async def _load_config(self):
             return async_client.ApiClient()
 
         if kubeconfig is not None:
-            with tempfile.NamedTemporaryFile() as temp_config:
+            async with aiofiles.tempfile.NamedTemporaryFile() as temp_config:
                 self.log.debug(
                     "Reading kubernetes configuration file from connection "
                     "object and writing temporary config file with its content",
                 )
-                temp_config.write(kubeconfig.encode())
-                temp_config.flush()
+                await temp_config.write(kubeconfig.encode())
+                await temp_config.flush()
                 self._is_in_cluster = False
                 await async_config.load_kube_config(
                     config_file=temp_config.name,

airflow/providers/cncf/kubernetes/provider.yaml

@@ -69,6 +69,7 @@ versions:
   - 1.0.0
 
 dependencies:
+  - aiofiles>=23.2.0
   - apache-airflow>=2.5.0
   - asgiref>=3.5.2
   - cryptography>=2.0.0

generated/provider_dependencies.json

@@ -258,6 +258,7 @@
   },
   "cncf.kubernetes": {
     "deps": [
+      "aiofiles>=23.2.0",
       "apache-airflow>=2.5.0",
       "asgiref>=3.5.2",
       "cryptography>=2.0.0",

setup.py

@@ -385,6 +385,7 @@ def write_version(filename: str = str(AIRFLOW_SOURCES_ROOT / "airflow" / "git_ve
     # Make sure to upgrade the mypy version in update-common-sql-api-stubs in .pre-commit-config.yaml
     # when you upgrade it here !!!!
     "mypy==1.2.0",
+    "types-aiofiles",
     "types-certifi",
     "types-croniter",
     "types-Deprecated",