move keystone package to password since it is a password authenticator

pkg/apiserver/authenticator/authn.go

@@ -23,9 +23,9 @@ import (
 	"k8s.io/kubernetes/pkg/auth/authenticator/bearertoken"
 	"k8s.io/kubernetes/pkg/serviceaccount"
 	"k8s.io/kubernetes/pkg/util/crypto"
+	"k8s.io/kubernetes/plugin/pkg/auth/authenticator/password/keystone"
 	"k8s.io/kubernetes/plugin/pkg/auth/authenticator/password/passwordfile"
 	"k8s.io/kubernetes/plugin/pkg/auth/authenticator/request/basicauth"
-	"k8s.io/kubernetes/plugin/pkg/auth/authenticator/request/keystone"
 	"k8s.io/kubernetes/plugin/pkg/auth/authenticator/request/union"
 	"k8s.io/kubernetes/plugin/pkg/auth/authenticator/request/x509"
 	"k8s.io/kubernetes/plugin/pkg/auth/authenticator/token/oidc"

plugin/pkg/auth/authenticator/request/keystone/doc.go → plugin/pkg/auth/authenticator/password/keystone/doc.go

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-//Package keystone provide authentication via keystone.
-// For details //about keystone and how to use the plugin, refer to
-// https://github.com/kubernetes/kubernetes/blob/oidc/docs/admin/authentication.md
+// Package keystone provides authentication via keystone.
+// For details about keystone and how to use the plugin, refer to
+// https://github.com/kubernetes/kubernetes.github.io/blob/master/docs/admin/authentication.md
 package keystone

plugin/pkg/auth/authenticator/request/keystone/keystone.go → plugin/pkg/auth/authenticator/password/keystone/keystone.go

@@ -26,12 +26,13 @@ import (
 	"k8s.io/kubernetes/pkg/auth/user"
 )
 
-// Keystone authenticator contacts openstack keystone to validate user's credentials passed in the request.
+// KeystoneAuthenticator contacts openstack keystone to validate user's credentials passed in the request.
 // The keystone endpoint is passed during apiserver startup
 type KeystoneAuthenticator struct {
 	authURL string
 }
 
+// AuthenticatePassword checks the username, password via keystone call
 func (keystoneAuthenticator *KeystoneAuthenticator) AuthenticatePassword(username string, password string) (user.Info, bool, error) {
 	opts := gophercloud.AuthOptions{
 		IdentityEndpoint: keystoneAuthenticator.authURL,
@@ -48,7 +49,7 @@ func (keystoneAuthenticator *KeystoneAuthenticator) AuthenticatePassword(usernam
 	return &user.DefaultInfo{Name: username}, true, nil
 }
 
-// New returns a request authenticator that validates credentials using openstack keystone
+// NewKeystoneAuthenticator returns a password authenticator that validates credentials using openstack keystone
 func NewKeystoneAuthenticator(authURL string) (*KeystoneAuthenticator, error) {
 	if !strings.HasPrefix(authURL, "https") {
 		return nil, errors.New("Auth URL should be secure and start with https")