Support engine configuration

salt/files/master.d/engine.conf

@@ -0,0 +1,8 @@
+#
+# This file is managed by Salt! Do not edit by hand!
+#
+{%- set engines = salt['pillar.get']('salt:engines') -%}
+{%- if engines %}
+engines:
+  {{ engines | yaml(False) | indent(2) }}
+{%- endif -%}