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/
validate.go
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/
validate.go
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// 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 kubecfg
import (
"fmt"
"io"
"strings"
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/apimachinery/pkg/util/sets"
"k8s.io/client-go/discovery"
"github.com/ksonnet/kubecfg/utils"
)
// ValidateCmd represents the validate subcommand
type ValidateCmd struct {
Discovery discovery.DiscoveryInterface
IgnoreUnknown bool
}
func (c ValidateCmd) Run(apiObjects []*unstructured.Unstructured, out io.Writer) error {
knownGVKs := sets.NewString()
gvkExists := func(gvk schema.GroupVersionKind) bool {
if knownGVKs.Has(gvk.String()) {
return true
}
gv := gvk.GroupVersion()
rls, err := c.Discovery.ServerResourcesForGroupVersion(gv.String())
if err != nil {
if !errors.IsNotFound(err) {
log.Debugf("ServerResourcesForGroupVersion(%q) returned unexpected error %v", gv, err)
}
return false
}
for _, rl := range rls.APIResources {
knownGVKs.Insert(gv.WithKind(rl.Kind).String())
}
return knownGVKs.Has(gvk.String())
}
hasError := false
for _, obj := range apiObjects {
desc := fmt.Sprintf("%s %s", utils.ResourceNameFor(c.Discovery, obj), utils.FqName(obj))
log.Info("Validating ", desc)
gvk := obj.GroupVersionKind()
var allErrs []error
schema, err := utils.NewOpenAPISchemaFor(c.Discovery, gvk)
if err != nil {
isNotFound := errors.IsNotFound(err) ||
strings.Contains(err.Error(), "is not supported by the server")
if isNotFound && (c.IgnoreUnknown || gvkExists(gvk)) {
log.Infof(" No schema found for %s, skipping validation", gvk)
continue
}
allErrs = append(allErrs, fmt.Errorf("Unable to fetch schema: %v", err))
} else {
// Validate obj
for _, err := range schema.Validate(obj) {
allErrs = append(allErrs, err)
}
}
for _, err := range allErrs {
log.Errorf("Error in %s: %v", desc, err)
hasError = true
}
}
if hasError {
return fmt.Errorf("Validation failed")
}
return nil
}