Merge pull request #157 from openziti/fix-empty-policy-display

Fix panic when policies have no roles. Fixes GH-156

doc/release-notes.md

@@ -1,3 +1,11 @@
+# Release 0.15.3
+
+* What's New:
+
+* Bug Fixes:
+  * [#152](https://github.com/openziti/ziti/issues/152) - Fix ziti-router enroll exit code on failure
+  * [#156](https://github.com/openziti/ziti/issues/156) - fix display of policies with empty roles lists
+ 
 # Release 0.15.2
 
 * What's New:

ziti/cmd/ziti/cmd/edge_controller/list.go

@@ -609,7 +609,12 @@ func outputServicePolicies(o *commonOptions, children []*gabs.Container, pagingI
 }
 
 func mapRoleIdsToNames(c *gabs.Container, path string, entityType string) ([]string, error) {
-	values := c.Path(path).Data().([]interface{})
+	jsonValues := c.Path(path).Data()
+	if jsonValues == nil {
+		return nil, nil
+	}
+
+	values := jsonValues.([]interface{})
 
 	var result []string
 	for _, val := range values {