Address Copilot comment

Author: jpinz

src/Microsoft.ComponentDetection.Detectors/kubernetes/KubernetesComponentDetector.cs

@@ -210,8 +210,19 @@ private static bool IsKubernetesManifest(YamlMappingNode rootMapping)
 
     private void ExtractImageReferences(YamlMappingNode rootMapping, ISingleFileComponentRecorder recorder, string fileLocation)
     {
-        // For Pod, the spec is at the top level
-        // For Deployment/StatefulSet/etc, the pod spec is at spec.template.spec
+        // PodTemplate has pod spec at root.template.spec.
+        var rootTemplate = GetMappingChild(rootMapping, "template");
+        if (rootTemplate != null)
+        {
+            var rootTemplateSpec = GetMappingChild(rootTemplate, "spec");
+            if (rootTemplateSpec != null)
+            {
+                this.ExtractContainerImages(rootTemplateSpec, recorder, fileLocation);
+            }
+        }
+
+        // For Pod, the spec is at the top level.
+        // For Deployment/StatefulSet/etc, the pod spec is at spec.template.spec.
         var spec = GetMappingChild(rootMapping, "spec");
         if (spec == null)
         {

test/Microsoft.ComponentDetection.Detectors.Tests/KubernetesComponentDetectorTests.cs

@@ -43,6 +43,38 @@ public async Task TestK8s_PodWithContainerImageAsync()
         dockerRef.Tag.Should().Be("1.21");
     }
 
+    [TestMethod]
+    public async Task TestK8s_PodTemplateAsync()
+    {
+        var manifest = @"
+apiVersion: v1
+kind: PodTemplate
+metadata:
+  name: my-template
+template:
+  metadata:
+    labels:
+      app: my-app
+  spec:
+    containers:
+      - name: app
+        image: nginx:1.21
+";
+
+        var (scanResult, componentRecorder) = await this.DetectorTestUtility
+            .WithFile("podtemplate.yaml", manifest)
+            .ExecuteDetectorAsync();
+
+        scanResult.ResultCode.Should().Be(ProcessingResultCode.Success);
+        var components = componentRecorder.GetDetectedComponents();
+        components.Should().ContainSingle();
+
+        var dockerRef = components.First().Component as DockerReferenceComponent;
+        dockerRef.Should().NotBeNull();
+        dockerRef.Repository.Should().Be("library/nginx");
+        dockerRef.Tag.Should().Be("1.21");
+    }
+
     [TestMethod]
     public async Task TestK8s_DeploymentWithMultipleContainersAsync()
     {