From 59b98727ecba003becfc27c6505000471cf33493 Mon Sep 17 00:00:00 2001
From: Jingfang Liu <jingfangliu@google.com>
Date: Fri, 20 Jul 2018 11:30:34 -0700
Subject: [PATCH] enable imageTagTransformer in application

---
 pkg/app/application.go                                | 11 ++++++++++-
 pkg/commands/testdata/testcase-simple/expected.diff   |  2 +-
 pkg/commands/testdata/testcase-simple/expected.yaml   |  2 +-
 .../instances/exampleinstance/kustomization.yaml      |  3 +++
 4 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/pkg/app/application.go b/pkg/app/application.go
index 3f69383d2..7e77f21cb 100644
--- a/pkg/app/application.go
+++ b/pkg/app/application.go
@@ -168,11 +168,20 @@ func (a *Application) loadCustomizedResMap() (resmap.ResMap, error) {
 	if len(errs.Get()) > 0 {
 		return nil, errs
 	}
+
+	var r []transformers.Transformer
 	t, err := a.newTransformer(patches)
 	if err != nil {
 		return nil, err
 	}
-	err = t.Transform(result)
+	r = append(r, t)
+	t, err = transformers.NewImageTagTransformer(a.kustomization.ImageTags)
+	if err != nil {
+		return nil, err
+	}
+	r = append(r, t)
+
+	err = transformers.NewMultiTransformer(r).Transform(result)
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/commands/testdata/testcase-simple/expected.diff b/pkg/commands/testdata/testcase-simple/expected.diff
index e3dc73552..fcd7ce640 100644
--- a/pkg/commands/testdata/testcase-simple/expected.diff
+++ b/pkg/commands/testdata/testcase-simple/expected.diff
@@ -48,7 +48,7 @@ diff -u -N /tmp/noop/extensions_v1beta1_Deployment_mungebot.yaml /tmp/transforme
          - name: foo
            value: bar
 -        image: nginx
-+        image: nginx:1.7.9
++        image: nginx:1.8.0
          name: nginx
          ports:
          - containerPort: 80
diff --git a/pkg/commands/testdata/testcase-simple/expected.yaml b/pkg/commands/testdata/testcase-simple/expected.yaml
index 8b21a680e..af067bfd0 100644
--- a/pkg/commands/testdata/testcase-simple/expected.yaml
+++ b/pkg/commands/testdata/testcase-simple/expected.yaml
@@ -111,7 +111,7 @@ spec:
               name: test-infra-app-tls-6hkmhf2224
         - name: foo
           value: bar
-        image: nginx:1.7.9
+        image: nginx:1.8.0
         name: nginx
         ports:
         - containerPort: 80
diff --git a/pkg/examplelayout/simple/instances/exampleinstance/kustomization.yaml b/pkg/examplelayout/simple/instances/exampleinstance/kustomization.yaml
index 3a184178d..4426f5a9c 100644
--- a/pkg/examplelayout/simple/instances/exampleinstance/kustomization.yaml
+++ b/pkg/examplelayout/simple/instances/exampleinstance/kustomization.yaml
@@ -21,3 +21,6 @@ secretGenerator:
     tls.crt: "cat secret/tls.cert"
     tls.key: "cat secret/tls.key"
   type: "kubernetes.io/tls"
+imageTags:
+- name: nginx
+  newTag: 1.8.0