Merge pull request #54957 from apelisse/update-kube-openapi

Automatic merge from submit-queue (batch tested with PRs 55004, 54957). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Update kube-openapi to use validation

**What this PR does / why we need it**: Moves openapi validation code to kube-openapi, so that we can move the rest of the code to apimachinery repository, so that later we can use it from both the client and the server.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #Nothing

**Special notes for your reviewer**:

**Release note**:
```release-note
NONE
```

Godeps/Godeps.json

@@ -3052,31 +3052,35 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/aggregator",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/builder",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/generators",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/handler",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/util",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/util/proto",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
+		},
+		{
+			"ImportPath": "k8s.io/kube-openapi/pkg/util/proto/validation",
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/utils/exec",

Godeps/LICENSES

@@ -90138,6 +90138,216 @@ Apache License
 ================================================================================
 
 
+================================================================================
+= vendor/k8s.io/kube-openapi/pkg/util/proto/validation licensed under: =
+
+
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+
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+      names, trademarks, service marks, or product names of the Licensor,
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
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+      defend, and hold each Contributor harmless for any liability
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+
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+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+      file or class name and description of purpose be included on the
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+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
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+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+= vendor/k8s.io/kube-openapi/LICENSE 3b83ef96387f14655fc854ddc3c6bd57
+================================================================================
+
+
 ================================================================================
 = vendor/k8s.io/utils/exec licensed under: =
 

pkg/kubectl/cmd/util/openapi/validation/BUILD

@@ -8,11 +8,7 @@ load(
 
 go_library(
     name = "go_default_library",
-    srcs = [
+    srcs = ["validation.go"],
-        "errors.go",
-        "types.go",
-        "validation.go",
-    ],
     importpath = "k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation",
     deps = [
         "//pkg/kubectl/cmd/util/openapi:go_default_library",
@@ -20,20 +16,20 @@ go_library(
         "//vendor/k8s.io/apimachinery/pkg/util/errors:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/util/json:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/util/yaml:go_default_library",
-        "//vendor/k8s.io/kube-openapi/pkg/util/proto:go_default_library",
+        "//vendor/k8s.io/kube-openapi/pkg/util/proto/validation:go_default_library",
     ],
 )
 
 go_test(
-    name = "go_default_xtest",
+    name = "go_default_test",
     srcs = [
         "validation_suite_test.go",
         "validation_test.go",
     ],
     data = ["//api/openapi-spec:swagger-spec"],
-    importpath = "k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation_test",
+    importpath = "k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation",
+    library = ":go_default_library",
     deps = [
-        ":go_default_library",
         "//pkg/api/testapi:go_default_library",
         "//pkg/kubectl/cmd/util/openapi:go_default_library",
         "//pkg/kubectl/cmd/util/openapi/testing:go_default_library",
@@ -42,6 +38,7 @@ go_test(
         "//vendor/github.com/onsi/ginkgo/types:go_default_library",
         "//vendor/github.com/onsi/gomega:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/util/errors:go_default_library",
+        "//vendor/k8s.io/kube-openapi/pkg/util/proto/validation:go_default_library",
     ],
 )
 

pkg/kubectl/cmd/util/openapi/validation/validation.go

@@ -24,20 +24,25 @@ import (
 	utilerrors "k8s.io/apimachinery/pkg/util/errors"
 	"k8s.io/apimachinery/pkg/util/json"
 	"k8s.io/apimachinery/pkg/util/yaml"
-	"k8s.io/kube-openapi/pkg/util/proto"
+	"k8s.io/kube-openapi/pkg/util/proto/validation"
 	"k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi"
 )
 
+// SchemaValidation validates the object against an OpenAPI schema.
 type SchemaValidation struct {
 	resources openapi.Resources
 }
 
+// NewSchemaValidation creates a new SchemaValidation that can be used
+// to validate objects.
 func NewSchemaValidation(resources openapi.Resources) *SchemaValidation {
 	return &SchemaValidation{
 		resources: resources,
 	}
 }
 
+// ValidateBytes will validates the object against using the Resources
+// object.
 func (v *SchemaValidation) ValidateBytes(data []byte) error {
 	obj, err := parse(data)
 	if err != nil {
@@ -80,12 +85,7 @@ func (v *SchemaValidation) validateResource(obj interface{}, gvk schema.GroupVer
 		return nil
 	}
 
-	rootValidation, err := itemFactory(proto.NewPath(gvk.Kind), obj)
+	return validation.ValidateModel(obj, resource, gvk.Kind)
-	if err != nil {
-		return []error{err}
-	}
-	resource.Accept(rootValidation)
-	return rootValidation.Errors()
 }
 
 func parse(data []byte) (interface{}, error) {

pkg/kubectl/cmd/util/openapi/validation/validation_suite_test.go

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package validation_test
+package validation
 
 import (
 	. "github.com/onsi/ginkgo"

pkg/kubectl/cmd/util/openapi/validation/validation_test.go

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package validation_test
+package validation
 
 import (
 	"path/filepath"
@@ -23,23 +23,23 @@ import (
 	. "github.com/onsi/gomega"
 
 	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+	"k8s.io/kube-openapi/pkg/util/proto/validation"
 	// This dependency is needed to register API types.
 	_ "k8s.io/kubernetes/pkg/api/testapi"
 	"k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi"
 	tst "k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/testing"
-	"k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation"
 )
 
 var fakeSchema = tst.Fake{Path: filepath.Join("..", "..", "..", "..", "..", "..", "api", "openapi-spec", "swagger.json")}
 
 var _ = Describe("resource validation using OpenAPI Schema", func() {
-	var validator *validation.SchemaValidation
+	var validator *SchemaValidation
 	BeforeEach(func() {
 		s, err := fakeSchema.OpenAPISchema()
 		Expect(err).To(BeNil())
 		resources, err := openapi.NewOpenAPIData(s)
 		Expect(err).To(BeNil())
-		validator = validation.NewSchemaValidation(resources)
+		validator = NewSchemaValidation(resources)
 		Expect(validator).ToNot(BeNil())
 	})
 

staging/src/k8s.io/api/Godeps/Godeps.json

@@ -216,7 +216,7 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/apimachinery/pkg/api/resource",

staging/src/k8s.io/apiextensions-apiserver/Godeps/Godeps.json

@@ -1556,19 +1556,19 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/builder",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/handler",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/util",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/apimachinery/pkg/api/equality",

staging/src/k8s.io/apimachinery/Godeps/Godeps.json

@@ -216,7 +216,7 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		}
 	]
 }

staging/src/k8s.io/apiserver/Godeps/Godeps.json

@@ -1612,19 +1612,19 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/builder",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/handler",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/util",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/client-go/discovery",

staging/src/k8s.io/client-go/Godeps/Godeps.json

@@ -692,7 +692,7 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		}
 	]
 }

staging/src/k8s.io/code-generator/Godeps/Godeps.json

@@ -252,11 +252,11 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/generators",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		}
 	]
 }

staging/src/k8s.io/kube-aggregator/Godeps/Godeps.json

@@ -1544,23 +1544,23 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/aggregator",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/builder",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/handler",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/util",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		}
 	]
 }

staging/src/k8s.io/metrics/Godeps/Godeps.json

@@ -520,7 +520,7 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		}
 	]
 }

staging/src/k8s.io/sample-apiserver/Godeps/Godeps.json

@@ -1532,19 +1532,19 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/builder",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/handler",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/util",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		}
 	]
 }

staging/src/k8s.io/sample-controller/Godeps/Godeps.json

@@ -940,7 +940,7 @@
 		},
 		{
 			"ImportPath": "k8s.io/kube-openapi/pkg/common",
-			"Rev": "61b46af70dfed79c6d24530cd23b41440a7f22a5"
+			"Rev": "39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1"
 		}
 	]
 }

vendor/BUILD

@@ -41,8 +41,6 @@ filegroup(
         "//vendor/github.com/aws/aws-sdk-go/service/elb:all-srcs",
         "//vendor/github.com/aws/aws-sdk-go/service/kms:all-srcs",
         "//vendor/github.com/aws/aws-sdk-go/service/sts:all-srcs",
-        "//vendor/github.com/aws/aws-sdk-go/vendor/github.com/go-ini/ini:all-srcs",
-        "//vendor/github.com/aws/aws-sdk-go/vendor/github.com/jmespath/go-jmespath:all-srcs",
         "//vendor/github.com/beorn7/perks/quantile:all-srcs",
         "//vendor/github.com/blang/semver:all-srcs",
         "//vendor/github.com/boltdb/bolt:all-srcs",

vendor/github.com/aws/aws-sdk-go/vendor/github.com/go-ini/ini/BUILD

@@ -1,28 +0,0 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library")
-
-go_library(
-    name = "go_default_library",
-    srcs = ["waiter.go"],
-    importpath = "github.com/aws/aws-sdk-go/private/waiter",
-    visibility = ["//visibility:public"],
-    deps = [
-        "//vendor/github.com/aws/aws-sdk-go/aws:go_default_library",
-        "//vendor/github.com/aws/aws-sdk-go/aws/awserr:go_default_library",
-        "//vendor/github.com/aws/aws-sdk-go/aws/awsutil:go_default_library",
-        "//vendor/github.com/aws/aws-sdk-go/aws/request:go_default_library",
-    ],
-)
-
-filegroup(
-    name = "package-srcs",
-    srcs = glob(["**"]),
-    tags = ["automanaged"],
-    visibility = ["//visibility:private"],
-)
-
-filegroup(
-    name = "all-srcs",
-    srcs = [":package-srcs"],
-    tags = ["automanaged"],
-    visibility = ["//visibility:public"],
-)

vendor/k8s.io/kube-openapi/pkg/util/BUILD

@@ -2,7 +2,10 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",
-    srcs = ["trie.go"],
+    srcs = [
+        "trie.go",
+        "util.go",
+    ],
     importpath = "k8s.io/kube-openapi/pkg/util",
     visibility = ["//visibility:public"],
 )

vendor/k8s.io/kube-openapi/pkg/util/proto/BUILD

@@ -24,7 +24,10 @@ filegroup(
 
 filegroup(
     name = "all-srcs",
-    srcs = [":package-srcs"],
+    srcs = [
+        ":package-srcs",
+        "//vendor/k8s.io/kube-openapi/pkg/util/proto/validation:all-srcs",
+    ],
     tags = ["automanaged"],
     visibility = ["//visibility:public"],
 )

vendor/k8s.io/kube-openapi/pkg/util/proto/validation/BUILD

@@ -3,16 +3,13 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 go_library(
     name = "go_default_library",
     srcs = [
-        "api.go",
+        "errors.go",
-        "astnodetype_string.go",
+        "types.go",
-        "functions.go",
+        "validation.go",
-        "interpreter.go",
-        "lexer.go",
-        "parser.go",
-        "toktype_string.go",
-        "util.go",
     ],
+    importpath = "k8s.io/kube-openapi/pkg/util/proto/validation",
     visibility = ["//visibility:public"],
+    deps = ["//vendor/k8s.io/kube-openapi/pkg/util/proto:go_default_library"],
 )
 
 filegroup(

vendor/k8s.io/kube-openapi/pkg/util/proto/validation/errors.go

@@ -20,15 +20,15 @@ import (
 	"fmt"
 )
 
-type Errors struct {
+type errors struct {
 	errors []error
 }
 
-func (e *Errors) Errors() []error {
+func (e *errors) Errors() []error {
 	return e.errors
 }
 
-func (e *Errors) AppendErrors(err ...error) {
+func (e *errors) AppendErrors(err ...error) {
 	e.errors = append(e.errors, err...)
 }
 

vendor/k8s.io/kube-openapi/pkg/util/proto/validation/types.go

@@ -23,7 +23,7 @@ import (
 	"k8s.io/kube-openapi/pkg/util/proto"
 )
 
-type ValidationItem interface {
+type validationItem interface {
 	proto.SchemaVisitor
 
 	Errors() []error
@@ -31,7 +31,7 @@ type ValidationItem interface {
 }
 
 type baseItem struct {
-	errors Errors
+	errors errors
 	path   proto.Path
 }
 
@@ -78,7 +78,7 @@ func (item *mapItem) sortedKeys() []string {
 	return sortedKeys
 }
 
-var _ ValidationItem = &mapItem{}
+var _ validationItem = &mapItem{}
 
 func (item *mapItem) VisitPrimitive(schema *proto.Primitive) {
 	item.AddValidationError(InvalidTypeError{Path: schema.GetPath().String(), Expected: schema.Type, Actual: "map"})
@@ -139,7 +139,7 @@ type arrayItem struct {
 	Array []interface{}
 }
 
-var _ ValidationItem = &arrayItem{}
+var _ validationItem = &arrayItem{}
 
 func (item *arrayItem) VisitPrimitive(schema *proto.Primitive) {
 	item.AddValidationError(InvalidTypeError{Path: schema.GetPath().String(), Expected: schema.Type, Actual: "array"})
@@ -183,7 +183,7 @@ type primitiveItem struct {
 	Kind  string
 }
 
-var _ ValidationItem = &primitiveItem{}
+var _ validationItem = &primitiveItem{}
 
 func (item *primitiveItem) VisitPrimitive(schema *proto.Primitive) {
 	// Some types of primitives can match more than one (a number
@@ -232,7 +232,7 @@ func (item *primitiveItem) VisitReference(schema proto.Reference) {
 }
 
 // itemFactory creates the relevant item type/visitor based on the current yaml type.
-func itemFactory(path proto.Path, v interface{}) (ValidationItem, error) {
+func itemFactory(path proto.Path, v interface{}) (validationItem, error) {
 	// We need to special case for no-type fields in yaml (e.g. empty item in list)
 	if v == nil {
 		return nil, InvalidObjectTypeError{Type: "nil", Path: path.String()}

vendor/k8s.io/kube-openapi/pkg/util/proto/validation/validation.go

@@ -0,0 +1,30 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package validation
+
+import (
+	"k8s.io/kube-openapi/pkg/util/proto"
+)
+
+func ValidateModel(obj interface{}, schema proto.Schema, name string) []error {
+	rootValidation, err := itemFactory(proto.NewPath(name), obj)
+	if err != nil {
+		return []error{err}
+	}
+	schema.Accept(rootValidation)
+	return rootValidation.Errors()
+}

vendor/k8s.io/kube-openapi/pkg/util/util.go

@@ -0,0 +1,39 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import "strings"
+
+// ToCanonicalName converts Golang package/type name into canonical OpenAPI name.
+// Examples:
+//	Input:  k8s.io/api/core/v1.Pod
+//	Output: io.k8s.api.core.v1.Pod
+//
+//	Input:  k8s.io/api/core/v1
+//	Output: io.k8s.api.core.v1
+func ToCanonicalName(name string) string {
+	nameParts := strings.Split(name, "/")
+	// Reverse first part. e.g., io.k8s... instead of k8s.io...
+	if len(nameParts) > 0 && strings.Contains(nameParts[0], ".") {
+		parts := strings.Split(nameParts[0], ".")
+		for i, j := 0, len(parts)-1; i < j; i, j = i+1, j-1 {
+			parts[i], parts[j] = parts[j], parts[i]
+		}
+		nameParts[0] = strings.Join(parts, ".")
+	}
+	return strings.Join(nameParts, ".")
+}