external-dns: cleanup test credentials

deploy/base/inflated/external-dns/templates/deployment.yaml

@@ -55,10 +55,10 @@ spec:
             - --metrics-address=:7979
             - --log-level=info
             - --log-format=text
-            - --policy=upsert-only
+            - --policy=sync
             - --provider=aws
             - --registry=txt
-            - --interval=1m
+            - --interval=15s
             - --source=service
             - --source=ingress
             # AWS arguments
@@ -95,12 +95,4 @@ spec:
             limits: {}
             requests: {}
           volumeMounts:
-            # AWS mountPath(s)
-            - name: aws-credentials
-              mountPath: /.aws
-              readOnly: true
       volumes:
-        # AWS volume(s)
-        - name: aws-credentials
-          secret:
-            secretName: foo

deploy/base/values/external-dns.yaml

@@ -0,0 +1,2 @@
+policy: sync
+interval: 15s