[FIXED JENKINS-21777] Actions contributing to Labels' index page

changelog.html

@@ -55,6 +55,9 @@ Upcoming changes</a>
 <!-- Record your changes in the trunk here. -->
 <div id="trunk" style="display:none"><!--=TRUNK-BEGIN=-->
 <ul class=image>
+  <li class=rfe>
+    Allow Actions to contribute to Labels' main page
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-21777">issue 21777</a>)
   <li class=bug>
     Expensive symlink-related calls on Windows can be simplified.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-20534">issue 20534</a>)

core/src/main/resources/hudson/model/Label/index.jelly

@@ -32,6 +32,10 @@ THE SOFTWARE.
         ${it.name}
       </h1>
 
+      <j:forEach var="a" items="${it.actions}">
+        <st:include page="summary.jelly" from="${a}" optional="true" it="${a}" />
+      </j:forEach>
+
       <div>
         <h2>${%Nodes}</h2>
         <j:forEach var="n" items="${it.nodes}">