fix: unable to set controller/webhook replicas to zero (#2147)

Signed-off-by: Yi Chen <github@chenyicn.net>

charts/spark-operator-chart/templates/controller/deployment.yaml

@@ -21,9 +21,7 @@ metadata:
   labels:
     {{- include "spark-operator.controller.labels" . | nindent 4 }}
 spec:
-  {{- with .Values.controller.replicas }}
-  replicas: {{ . }}
-  {{- end }}
+  replicas: {{ .Values.controller.replicas }}
   selector:
     matchLabels:
       {{- include "spark-operator.controller.selectorLabels" . | nindent 6 }}

charts/spark-operator-chart/templates/webhook/deployment.yaml

@@ -22,9 +22,7 @@ metadata:
   labels:
     {{- include "spark-operator.webhook.labels" . | nindent 4 }}
 spec:
-  {{- with .Values.webhook.replicas }}
-  replicas: {{ . }}
-  {{- end }}
+  replicas: {{ .Values.webhook.replicas }}
   selector:
     matchLabels:
       {{- include "spark-operator.webhook.selectorLabels" . | nindent 6 }}

charts/spark-operator-chart/tests/controller/deployment_test.yaml

@@ -53,6 +53,15 @@ tests:
           path: spec.replicas
           value: 10
 
+  - it: Should set replicas if `controller.replicas` is set
+    set:
+      controller:
+        replicas: 0
+    asserts:
+      - equal:
+          path: spec.replicas
+          value: 0
+
   - it: Should add pod labels if `controller.labels` is set
     set:
       controller:

charts/spark-operator-chart/tests/webhook/deployment_test.yaml

@@ -48,6 +48,15 @@ tests:
           path: spec.replicas
           value: 10
 
+  - it: Should set replicas if `webhook.replicas` is set
+    set:
+      webhook:
+        replicas: 0
+    asserts:
+      - equal:
+          path: spec.replicas
+          value: 0
+
   - it: Should add pod labels if `webhook.labels` is set
     set:
       webhook: