migrate legacy API

Signed-off-by: hongming <talonwan@yunify.com>

pkg/apiserver/authorization/options/authorization_options.go

@@ -0,0 +1,54 @@
+/*
+ *
+ * Copyright 2020 The KubeSphere 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 options
+
+import (
+	"fmt"
+	"github.com/spf13/pflag"
+	"k8s.io/klog"
+	"kubesphere.io/kubesphere/pkg/utils/sliceutil"
+)
+
+type AuthorizationOptions struct {
+	Mode string `json:"mode"  yaml:"mode"`
+}
+
+func NewAuthorizationOptions() *AuthorizationOptions {
+	return &AuthorizationOptions{Mode: RBAC}
+}
+
+var (
+	AlwaysDeny  = "AlwaysDeny"
+	AlwaysAllow = "AlwaysAllow"
+	RBAC        = "RBAC"
+)
+
+func (o *AuthorizationOptions) AddFlags(fs *pflag.FlagSet, s *AuthorizationOptions) {
+	fs.StringVar(&o.Mode, "authorization", s.Mode, "Authorization setting, allowed values: AlwaysDeny, AlwaysAllow, RBAC.")
+}
+
+func (o AuthorizationOptions) Validate() []error {
+	errs := make([]error, 0)
+	if !sliceutil.HasString([]string{AlwaysAllow, AlwaysDeny, RBAC}, o.Mode) {
+		err := fmt.Errorf("authorization mode %s not support", o.Mode)
+		klog.Error(err)
+		errs = append(errs, err)
+	}
+	return errs
+}