fix: NoneType (#11)

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.3.1] - 2022-07-04
+### Fixed
+- TypeError: argument of type 'NoneType' is not iterable in _find_sealed_secrets_controller
+
 ## [0.3.0] - 2022-07-01
 ### Added
 - Support for SealedSecrets controller encryption secret backup

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "kubeseal-auto"
-version = "0.3.0"
+version = "0.3.1"
 description = "An interactive wrapper for kubeseal binary"
 authors = ["Vadim Gedz <[email protected]>"]
 license = "MIT"

src/kubeseal_auto/cluster.py

@@ -36,18 +36,22 @@ def _find_sealed_secrets_controller() -> dict:
 
         expected_label = "app.kubernetes.io/instance"
 
-        for deployment in client.AppsV1Api().list_deployment_for_all_namespaces().items:
-            if (
-                expected_label in deployment.metadata.labels
-                and deployment.metadata.labels[expected_label] == "sealed-secrets"
-            ):
+        for deployment in (
+            client.AppsV1Api()
+            .list_deployment_for_all_namespaces(label_selector=expected_label)
+            .items
+        ):
+            if deployment.metadata.labels[expected_label] == "sealed-secrets":
                 name = deployment.metadata.labels[expected_label]
                 namespace = deployment.metadata.namespace
                 click.echo(
                     f"===> Found the following controller: {Fore.CYAN}{namespace}/{name}"
                 )
                 return {"name": name, "namespace": namespace}
 
+        click.echo("===> No controller found")
+        exit(1)
+
     def find_latest_sealed_secrets_controller_certificate(self) -> str:
         res = client.CoreV1Api().list_namespaced_secret(
             self.controller.get("namespace")