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helm/pkg/kube/client.go

70 lines
1.5 KiB

package kube
import (
"fmt"
"io"
"k8s.io/kubernetes/pkg/client/unversioned/clientcmd"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/kubectl/resource"
)
const includeThirdPartyAPIs = false
// ResourceActorFunc performs an action on a signle resource.
type ResourceActorFunc func(*resource.Info) error
// Create creates kubernetes resources from an io.reader
//
// Namespace will set the namespace
// Config allows for overiding values from kubectl
func Create(namespace string, reader io.Reader, config clientcmd.ClientConfig) error {
return perform(namespace, reader, createResource, config)
}
func perform(namespace string, reader io.Reader, fn ResourceActorFunc, config clientcmd.ClientConfig) error {
f := cmdutil.NewFactory(config)
//schema, err := f.Validator(true, "")
//if err != nil {
//return err
//}
r := f.NewBuilder(includeThirdPartyAPIs).
ContinueOnError().
NamespaceParam(namespace).
RequireNamespace().
Stream(reader, "").
Flatten().
Do()
if r.Err() != nil {
return r.Err()
}
count := 0
err := r.Visit(func(info *resource.Info, err error) error {
if err != nil {
return err
}
err = fn(info)
if err == nil {
count++
}
return err
})
if err != nil {
return err
}
if count == 0 {
return fmt.Errorf("no objects passed to create")
}
return nil
}
func createResource(info *resource.Info) error {
_, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, info.Object)
return err
}