93 lines
3.5 KiB
Go
93 lines
3.5 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package options
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import (
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"strings"
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"time"
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"github.com/spf13/pflag"
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"k8s.io/kubernetes/pkg/controller/informers"
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"k8s.io/kubernetes/pkg/kubeapiserver/authorizer"
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)
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var AuthorizationModeChoices = []string{authorizer.ModeAlwaysAllow, authorizer.ModeAlwaysDeny, authorizer.ModeABAC, authorizer.ModeWebhook, authorizer.ModeRBAC}
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type BuiltInAuthorizationOptions struct {
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Mode string
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PolicyFile string
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WebhookConfigFile string
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WebhookCacheAuthorizedTTL time.Duration
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WebhookCacheUnauthorizedTTL time.Duration
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}
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func NewBuiltInAuthorizationOptions() *BuiltInAuthorizationOptions {
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return &BuiltInAuthorizationOptions{
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Mode: authorizer.ModeAlwaysAllow,
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WebhookCacheAuthorizedTTL: 5 * time.Minute,
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WebhookCacheUnauthorizedTTL: 30 * time.Second,
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}
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}
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func (s *BuiltInAuthorizationOptions) Validate() []error {
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allErrors := []error{}
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return allErrors
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}
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func (s *BuiltInAuthorizationOptions) AddFlags(fs *pflag.FlagSet) {
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fs.StringVar(&s.Mode, "authorization-mode", s.Mode, ""+
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"Ordered list of plug-ins to do authorization on secure port. Comma-delimited list of: "+
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strings.Join(AuthorizationModeChoices, ",")+".")
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fs.StringVar(&s.PolicyFile, "authorization-policy-file", s.PolicyFile, ""+
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"File with authorization policy in csv format, used with --authorization-mode=ABAC, on the secure port.")
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fs.StringVar(&s.WebhookConfigFile, "authorization-webhook-config-file", s.WebhookConfigFile, ""+
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"File with webhook configuration in kubeconfig format, used with --authorization-mode=Webhook. "+
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"The API server will query the remote service to determine access on the API server's secure port.")
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fs.DurationVar(&s.WebhookCacheAuthorizedTTL, "authorization-webhook-cache-authorized-ttl",
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s.WebhookCacheAuthorizedTTL,
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"The duration to cache 'authorized' responses from the webhook authorizer. Default is 5m.")
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fs.DurationVar(&s.WebhookCacheUnauthorizedTTL,
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"authorization-webhook-cache-unauthorized-ttl", s.WebhookCacheUnauthorizedTTL,
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"The duration to cache 'unauthorized' responses from the webhook authorizer. Default is 30s.")
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fs.String("authorization-rbac-super-user", "", ""+
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"If specified, a username which avoids RBAC authorization checks and role binding "+
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"privilege escalation checks, to be used with --authorization-mode=RBAC.")
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fs.MarkDeprecated("authorization-rbac-super-user", "Removed during alpha to beta. The 'system:masters' group has privileged access.")
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}
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func (s *BuiltInAuthorizationOptions) ToAuthorizationConfig(informerFactory informers.SharedInformerFactory) authorizer.AuthorizationConfig {
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modes := []string{}
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if len(s.Mode) > 0 {
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modes = strings.Split(s.Mode, ",")
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}
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return authorizer.AuthorizationConfig{
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AuthorizationModes: modes,
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PolicyFile: s.PolicyFile,
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WebhookConfigFile: s.WebhookConfigFile,
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WebhookCacheAuthorizedTTL: s.WebhookCacheAuthorizedTTL,
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WebhookCacheUnauthorizedTTL: s.WebhookCacheUnauthorizedTTL,
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InformerFactory: informerFactory,
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}
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}
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