diff --git a/views/ngXosViews/diagnostic/src/js/serviceTopology.js b/views/ngXosViews/diagnostic/src/js/serviceTopology.js
new file mode 100644
index 0000000..d30122c
--- /dev/null
+++ b/views/ngXosViews/diagnostic/src/js/serviceTopology.js
@@ -0,0 +1,64 @@
+(function () {
+  'use strict';
+
+  angular.module('xos.serviceTopology')
+  .directive('serviceTopology', function(){
+    return {
+      restrict: 'E',
+      scope: {
+        serviceChain: '='
+      },
+      bindToController: true,
+      controllerAs: 'vm',
+      template: '',
+      controller: function($element, $window, $scope, d3, serviceTopologyConfig, ServiceRelation, Slice, Instances, Subscribers, TreeLayout){
+
+        const el = $element[0];
+
+        this.instances = [];
+        this.slices = [];
+
+        const width = el.clientWidth - (serviceTopologyConfig.widthMargin * 2);
+        const height = el.clientHeight - (serviceTopologyConfig.heightMargin * 2);
+
+        const treeLayout = d3.layout.tree()
+          .size([height, width]);
+
+        const svg = d3.select($element[0])
+          .append('svg')
+          .style('width', `${el.clientWidth}px`)
+          .style('height', `${el.clientHeight}px`)
+
+        const treeContainer = svg.append('g')
+          .attr('transform', `translate(${serviceTopologyConfig.widthMargin * 4},${serviceTopologyConfig.heightMargin})`);
+
+        var root;
+
+        const draw = (tree) => {
+          root = tree;
+          root.x0 = height / 2;
+          root.y0 = width / 2;
+
+          TreeLayout.updateTree(treeContainer, treeLayout, root);
+        };
+
+        TreeLayout.drawLegend(svg);
+
+        this.getInstances = (slice) => {
+          Instances.query({slice: slice.id}).$promise
+          .then((instances) => {
+            this.selectedSlice = slice;
+            this.instances = instances;
+          })
+        };
+        
+        $scope.$watch(() => this.serviceChain, (chain) => {
+          if(chain){
+            draw(chain);
+          }
+        });
+      }
+    }
+  });
+
+}());
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