package client import ( "k8s.io/apimachinery/pkg/api/meta" "k8s.io/client-go/discovery" "k8s.io/client-go/discovery/cached/memory" "k8s.io/client-go/rest" "k8s.io/client-go/restmapper" "k8s.io/client-go/tools/clientcmd" ) // restClientGetter implements k8s.io/cli-runtime/pkg/resource.RESTClientGetter. type restClientGetter struct { clientconfig clientcmd.ClientConfig } // newRESTClientGetter creates a new restClientGetter using a kubeconfig. func newRESTClientGetter(kubeconfig []byte) (*restClientGetter, error) { clientconfig, err := clientcmd.NewClientConfigFromBytes(kubeconfig) if err != nil { return nil, err } rawconfig, err := clientconfig.RawConfig() if err != nil { return nil, err } clientconfig = clientcmd.NewDefaultClientConfig(rawconfig, &clientcmd.ConfigOverrides{}) return &restClientGetter{clientconfig}, nil } // ToRESTConfig returns k8s REST client config. func (r *restClientGetter) ToRESTConfig() (*rest.Config, error) { return r.clientconfig.ClientConfig() } // ToDiscoveryClient creates new k8s discovery client from restClientGetter. func (r *restClientGetter) ToDiscoveryClient() (discovery.CachedDiscoveryInterface, error) { restconfig, err := r.clientconfig.ClientConfig() if err != nil { return nil, err } dc, err := discovery.NewDiscoveryClientForConfig(restconfig) if err != nil { return nil, err } return memory.NewMemCacheClient(dc), nil } // ToRESTMapper creates new k8s RESTMapper from restClientGetter. func (r *restClientGetter) ToRESTMapper() (meta.RESTMapper, error) { dc, err := r.ToDiscoveryClient() if err != nil { return nil, err } return restmapper.NewDeferredDiscoveryRESTMapper(dc), nil } // ToRawKubeConfigLoader returns the inner k8s ClientConfig. func (r *restClientGetter) ToRawKubeConfigLoader() clientcmd.ClientConfig { return r.clientconfig }