properly handle object creation error in template instantiate

pkg/template/controller/templateinstance_controller.go

@@ -501,7 +501,7 @@ func (c *TemplateInstanceController) instantiate(templateInstance *templatev1.Te
 			}
 		}
 		if createErr != nil {
-			allErrors = append(allErrors, mappingErr)
+			allErrors = append(allErrors, createErr)
 			continue
 		}
 

test/extended/templates/templateinstance_fail.go

@@ -0,0 +1,56 @@
+package templates
+
+import (
+	"fmt"
+	"time"
+
+	g "github.com/onsi/ginkgo"
+	o "github.com/onsi/gomega"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/wait"
+
+	templatev1 "github.com/openshift/api/template/v1"
+	templatecontroller "github.com/openshift/origin/pkg/template/controller"
+	exutil "github.com/openshift/origin/test/extended/util"
+)
+
+var _ = g.Describe("[Conformance][templates] templateinstance creation with invalid object reports error", func() {
+	defer g.GinkgoRecover()
+
+	var (
+		cli             = exutil.NewCLI("templates", exutil.KubeConfigPath())
+		templatefixture = exutil.FixturePath("testdata", "templates", "templateinstance_badobject.yaml")
+	)
+
+	g.Context("", func() {
+		g.BeforeEach(func() {
+			g.By("waiting for default service account")
+			err := exutil.WaitForServiceAccount(cli.KubeClient().Core().ServiceAccounts(cli.Namespace()), "default")
+			o.Expect(err).NotTo(o.HaveOccurred())
+		})
+
+		g.It("should report a failure on creation", func() {
+			err := cli.Run("create").Args("-f", templatefixture).Execute()
+			o.Expect(err).NotTo(o.HaveOccurred())
+
+			g.By("waiting for error to appear")
+			var templateinstance *templatev1.TemplateInstance
+			err = wait.Poll(time.Second, 1*time.Minute, func() (bool, error) {
+				templateinstance, err = cli.TemplateClient().TemplateV1().TemplateInstances(cli.Namespace()).Get("invalidtemplateinstance", metav1.GetOptions{})
+				if err != nil {
+					return false, err
+				}
+				if templatecontroller.TemplateInstanceHasCondition(templateinstance, templatev1.TemplateInstanceInstantiateFailure, corev1.ConditionTrue) {
+					return true, nil
+				}
+				return false, nil
+			})
+			if err != nil {
+				fmt.Fprintf(g.GinkgoWriter, "error waiting for instantiate failure: %v\n%#v", err, templateinstance)
+			}
+			o.Expect(err).NotTo(o.HaveOccurred())
+		})
+	})
+})

test/extended/testdata/templates/templateinstance_badobject.yaml

@@ -0,0 +1,31 @@
+kind: List
+apiVersion: v1
+items:
+- kind: TemplateInstance
+  apiVersion: template.openshift.io/v1
+  metadata:
+    name: invalidtemplateinstance
+  spec:
+    template:
+      kind: Template
+      apiVersion: v1
+      metadata:
+        name: template
+      objects:
+      - kind: Deployment
+        apiVersion: apps/v1
+        metadata:
+          name: "invalidname!@#$%^&*"
+        spec:
+          replicas: 0
+          selector:
+            matchLabels:
+              key: value
+          template:
+            metadata:
+              labels:
+                key: value
+            spec:
+              containers:
+              - name: hello-openshift
+                image: openshift/hello-openshift