You can use $brooklyn:external
directly:
{% highlight yaml %} name: MyApplication brooklyn.config: example: $brooklyn:external(“supplier”, “key”) {% endhighlight %}
or embed the external
function inside another $brooklyn
DSL function, such as $brooklyn:formatString
:
{% highlight yaml %} name: MyApplication brooklyn.config: example: $brooklyn:formatString(“%s”, external(“supplier”, “key”)) {% endhighlight %}