cluster/tools/kartongips: init
This forks bitnami/kubecfg into kartongips. The rationale is that we
want to implement hscloud-specific functionality that wouldn't really be
upstreamable into kubecfg (like secret support, mulit-cluster support).
We forked off from github.com/q3k/kubecfg at commit b6817a94492c561ed61a44eeea2d92dcf2e6b8c0.
Change-Id: If5ba513905e0a86f971576fe7061a471c1d8b398
diff --git a/cluster/tools/kartongips/utils/openapi.go b/cluster/tools/kartongips/utils/openapi.go
new file mode 100644
index 0000000..4708bf1
--- /dev/null
+++ b/cluster/tools/kartongips/utils/openapi.go
@@ -0,0 +1,65 @@
+// Copyright 2017 The kubecfg 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 utils
+
+import (
+ "fmt"
+
+ log "github.com/sirupsen/logrus"
+ "k8s.io/apimachinery/pkg/api/errors"
+ "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ "k8s.io/client-go/discovery"
+ "k8s.io/kube-openapi/pkg/util/proto"
+ "k8s.io/kube-openapi/pkg/util/proto/validation"
+ "k8s.io/kubectl/pkg/util/openapi"
+)
+
+// OpenAPISchema represents an OpenAPI schema for a given GroupVersionKind.
+type OpenAPISchema struct {
+ schema proto.Schema
+}
+
+// NewOpenAPISchemaFor returns the OpenAPISchema object ready to validate objects of given GroupVersion
+func NewOpenAPISchemaFor(delegate discovery.OpenAPISchemaInterface, gvk schema.GroupVersionKind) (*OpenAPISchema, error) {
+ log.Debugf("Fetching schema for %v", gvk)
+ doc, err := delegate.OpenAPISchema()
+ if err != nil {
+ return nil, err
+ }
+ res, err := openapi.NewOpenAPIData(doc)
+ if err != nil {
+ return nil, err
+ }
+
+ sc := res.LookupResource(gvk)
+ if sc == nil {
+ gvr := schema.GroupResource{
+ // TODO(mkm): figure out a meaningful group+resource for schemas.
+ Group: "schema",
+ Resource: "schema",
+ }
+ return nil, errors.NewNotFound(gvr, fmt.Sprintf("%s", gvk))
+ }
+ return &OpenAPISchema{schema: sc}, nil
+}
+
+// Validate is the primary entrypoint into this class
+func (s *OpenAPISchema) Validate(obj *unstructured.Unstructured) []error {
+ gvk := obj.GroupVersionKind()
+ log.Infof("validate object %q", gvk)
+ return validation.ValidateModel(obj.UnstructuredContent(), s.schema, fmt.Sprintf("%s.%s", gvk.Version, gvk.Kind))
+}