forked from openshift/hive
/
restconfig_factory.go
62 lines (54 loc) · 2.08 KB
/
restconfig_factory.go
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package resource
import (
controllerutils "github.com/openshift/hive/pkg/controller/utils"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/client-go/discovery"
"k8s.io/client-go/rest"
"k8s.io/client-go/restmapper"
"k8s.io/client-go/tools/clientcmd"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
)
func (r *Helper) getRESTConfigFactory(namespace string) (cmdutil.Factory, error) {
if r.metricsEnabled {
// Copy the possibly shared restConfig reference and add a metrics wrapper.
cfg := rest.CopyConfig(r.restConfig)
controllerutils.AddControllerMetricsTransportWrapper(cfg, r.controllerName, false)
r.restConfig = cfg
}
r.logger.WithField("cache-dir", r.cacheDir).Debug("creating cmdutil.Factory from REST client config and cache directory")
f := cmdutil.NewFactory(&restConfigClientGetter{restConfig: r.restConfig, cacheDir: r.cacheDir, namespace: namespace})
return f, nil
}
type restConfigClientGetter struct {
restConfig *rest.Config
cacheDir string
namespace string
}
// ToRESTConfig returns restconfig
func (r *restConfigClientGetter) ToRESTConfig() (*rest.Config, error) {
return r.restConfig, nil
}
// ToDiscoveryClient returns discovery client
func (r *restConfigClientGetter) ToDiscoveryClient() (discovery.CachedDiscoveryInterface, error) {
config := rest.CopyConfig(r.restConfig)
return getDiscoveryClient(config, r.cacheDir)
}
// ToRESTMapper returns a restmapper
func (r *restConfigClientGetter) ToRESTMapper() (meta.RESTMapper, error) {
discoveryClient, err := r.ToDiscoveryClient()
if err != nil {
return nil, err
}
mapper := restmapper.NewDeferredDiscoveryRESTMapper(discoveryClient)
expander := restmapper.NewShortcutExpander(mapper, discoveryClient)
return expander, nil
}
// ToRawKubeConfigLoader return kubeconfig loader as-is
func (r *restConfigClientGetter) ToRawKubeConfigLoader() clientcmd.ClientConfig {
cfg := GenerateClientConfigFromRESTConfig("default", r.restConfig)
overrides := &clientcmd.ConfigOverrides{}
if len(r.namespace) > 0 {
overrides.Context.Namespace = r.namespace
}
return clientcmd.NewNonInteractiveClientConfig(*cfg, "", overrides, nil)
}