add SA assert

Author: razvan

tests/templates/kuttl/overrides/11-assert.yaml

@@ -13,6 +13,13 @@ commands:
       POD=$(kubectl -n $NAMESPACE get pod -l app.kubernetes.io/instance=spark-pi-s3-1 -o name | head -n 1 | sed -e 's#pod/##')
       kubectl -n $NAMESPACE get pod $POD -o yaml | yq '.spec.containers[0].env[] | select (.name == "TEST_SPARK_VAR_0").value' | grep 'REPLACED'
       kubectl -n $NAMESPACE get pod $POD -o yaml | yq '.spec.containers[0].env[] | select (.name == "TEST_SPARK_VAR_1").value' | grep 'DONOTREPLACE'
+  - script: |
+      for POD_SA_NAME in $(kubectl get pods -n kuttl-test-flowing-reindeer -l app.kubernetes.io/instance=spark-pi-s3-1 -o=jsonpath='{.items[*].spec.serviceAccountName}'); do
+        if [ "$POD_SA_NAME" != "override_sa" ]; then
+          echo "Expected Pod service account [override_sa], but got [$POD_SA_NAME]"
+          exit 1
+        fi
+      done
 ---
 apiVersion: v1
 kind: ConfigMap