Fix issue with remote Kustomizations in dev mode. (#2581)

pkg/skaffold/deploy/kustomize.go

@@ -164,7 +164,8 @@ func dependenciesForKustomization(dir string) ([]string, error) {
 
 	path, err := findKustomizationConfig(dir)
 	if err != nil {
-		return nil, err
+		// No kustomiization config found so assume it's remote and stop traversing
+		return deps, nil
 	}
 
 	buf, err := ioutil.ReadFile(path)
@@ -217,7 +218,7 @@ func dependenciesForKustomization(dir string) ([]string, error) {
 	return deps, nil
 }
 
-// A kustomization config must be at the root of the direectory. Kustomize will
+// A Kustomization config must be at the root of the directory. Kustomize will
 // error if more than one of these files exists so order doesn't matter.
 func findKustomizationConfig(dir string) (string, error) {
 	candidates := []string{"kustomization.yaml", "kustomization.yml", "Kustomization"}

pkg/skaffold/deploy/kustomize_test.go

@@ -157,12 +157,13 @@ func TestKustomizeCleanup(t *testing.T) {
 
 func TestDependenciesForKustomization(t *testing.T) {
 	tests := []struct {
-		description string
-		yaml        string
-		expected    []string
-		shouldErr   bool
-		createFiles map[string]string
-		configName  string
+		description        string
+		yaml               string
+		expected           []string
+		shouldErr          bool
+		skipConfigCreation bool
+		createFiles        map[string]string
+		configName         string
 	}{
 		{
 			description: "resources",
@@ -272,23 +273,21 @@ func TestDependenciesForKustomization(t *testing.T) {
 		{
 			description: "mixture of config names",
 			yaml:        `resources: [app.yaml, base1, base2]`,
-			expected:    []string{"Kustomization", "app.yaml", "base1/kustomization.yml", "base1/app.yaml", "base2/Kustomization", "base2/app.yaml"},
+			expected:    []string{"Kustomization", "app.yaml", "base1/kustomization.yml", "base1/app.yaml", "base2/kustomization.yaml", "base2/app.yaml"},
 			createFiles: map[string]string{
-				"app.yaml":                "",
-				"base1/kustomization.yml": `resources: [app.yaml]`,
-				"base1/app.yaml":          "",
-				"base2/Kustomization":     `resources: [app.yaml]`,
-				"base2/app.yaml":          "",
+				"app.yaml":                 "",
+				"base1/kustomization.yml":  `resources: [app.yaml]`,
+				"base1/app.yaml":           "",
+				"base2/kustomization.yaml": `resources: [app.yaml]`,
+				"base2/app.yaml":           "",
 			},
 			configName: "Kustomization",
 		},
 		{
-			description: "no kustomization config",
-			yaml:        `resources: [foo]`,
-			shouldErr:   true,
-			createFiles: map[string]string{
-				"foo/invalid-config-name": "",
-			},
+			description:        "remote or missing root kustomization config",
+			expected:           []string{},
+			configName:         "missing-or-remote-root-config",
+			skipConfigCreation: true,
 		},
 	}
 	for _, test := range tests {
@@ -297,8 +296,11 @@ func TestDependenciesForKustomization(t *testing.T) {
 				test.configName = "kustomization.yaml"
 			}
 
-			tmpDir := t.NewTempDir().
-				Write(test.configName, test.yaml)
+			tmpDir := t.NewTempDir()
+
+			if !test.skipConfigCreation {
+				tmpDir.Write(test.configName, test.yaml)
+			}
 
 			for path, contents := range test.createFiles {
 				tmpDir.Write(path, contents)