Merge pull request #96145 from ingvagabund/move-pkg-kubectl-cmd-auth-under-kubectl-staging
Move pkg/kubectl/cmd/auth under staging/src/k8s.io/kubectl/pkg/cmd/auth Kubernetes-commit: c82d5ee0486191e709663b584b4f7101235514c9
This commit is contained in:
		
						commit
						643e9ee7db
					
				| 
						 | 
				
			
			@ -786,6 +786,10 @@
 | 
			
		|||
			"ImportPath": "k8s.io/component-base",
 | 
			
		||||
			"Rev": "3b346c3e8128"
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			"ImportPath": "k8s.io/component-helpers",
 | 
			
		||||
			"Rev": "f4b28bd014f1"
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			"ImportPath": "k8s.io/gengo",
 | 
			
		||||
			"Rev": "8167cfdcfc14"
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
							
								
								
									
										4
									
								
								go.mod
								
								
								
								
							
							
						
						
									
										4
									
								
								go.mod
								
								
								
								
							| 
						 | 
				
			
			@ -39,6 +39,7 @@ require (
 | 
			
		|||
	k8s.io/cli-runtime v0.0.0-20201102204136-d0f4150e4c60
 | 
			
		||||
	k8s.io/client-go v0.0.0-20201103122446-534b10dd0412
 | 
			
		||||
	k8s.io/component-base v0.0.0-20201102202913-3b346c3e8128
 | 
			
		||||
	k8s.io/component-helpers v0.0.0-20201103005013-f4b28bd014f1
 | 
			
		||||
	k8s.io/klog/v2 v2.2.0
 | 
			
		||||
	k8s.io/kube-openapi v0.0.0-20200923155610-8b5066479488
 | 
			
		||||
	k8s.io/metrics v0.0.0-20201102204027-de1a3d1600b4
 | 
			
		||||
| 
						 | 
				
			
			@ -54,7 +55,6 @@ replace (
 | 
			
		|||
	k8s.io/client-go => k8s.io/client-go v0.0.0-20201103122446-534b10dd0412
 | 
			
		||||
	k8s.io/code-generator => k8s.io/code-generator v0.0.0-20201102201853-e7a6809e9fe3
 | 
			
		||||
	k8s.io/component-base => k8s.io/component-base v0.0.0-20201102202913-3b346c3e8128
 | 
			
		||||
	k8s.io/component-helpers => k8s.io/component-helpers v0.0.0-20201103005013-f4b28bd014f1
 | 
			
		||||
	k8s.io/metrics => k8s.io/metrics v0.0.0-20201102204027-de1a3d1600b4
 | 
			
		||||
)
 | 
			
		||||
 | 
			
		||||
replace k8s.io/component-helpers => k8s.io/component-helpers v0.0.0-20201103005013-f4b28bd014f1
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
							
								
								
									
										1
									
								
								go.sum
								
								
								
								
							
							
						
						
									
										1
									
								
								go.sum
								
								
								
								
							| 
						 | 
				
			
			@ -514,6 +514,7 @@ k8s.io/cli-runtime v0.0.0-20201102204136-d0f4150e4c60/go.mod h1:BPUgo08u37PddGZF
 | 
			
		|||
k8s.io/client-go v0.0.0-20201103122446-534b10dd0412/go.mod h1:eZXqnPJiVVWY2+7NwTdK2FTjO8hczO3Dyc4NYU9HPOs=
 | 
			
		||||
k8s.io/code-generator v0.0.0-20201102201853-e7a6809e9fe3/go.mod h1:oioc17TXBB973K4R+ytm5k9jY1BktboxJc7qu3i29V0=
 | 
			
		||||
k8s.io/component-base v0.0.0-20201102202913-3b346c3e8128/go.mod h1:/nWuTBUUN0ayOy6M2gPPEbJLcu3pBzdQG+RvOeE0nr8=
 | 
			
		||||
k8s.io/component-helpers v0.0.0-20201103005013-f4b28bd014f1/go.mod h1:fATLiMczVsWPiRQBF/4Bmb9j64XsZEKugK1o4RHjFoI=
 | 
			
		||||
k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
 | 
			
		||||
k8s.io/gengo v0.0.0-20200428234225-8167cfdcfc14/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
 | 
			
		||||
k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -0,0 +1,9 @@
 | 
			
		|||
# See the OWNERS docs at https://go.k8s.io/owners
 | 
			
		||||
 | 
			
		||||
approvers:
 | 
			
		||||
- sig-auth-authorizers-approvers
 | 
			
		||||
reviewers:
 | 
			
		||||
- sig-auth-authorizers-reviewers
 | 
			
		||||
labels:
 | 
			
		||||
- sig/auth
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -0,0 +1,40 @@
 | 
			
		|||
/*
 | 
			
		||||
Copyright 2014 The Kubernetes 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 auth
 | 
			
		||||
 | 
			
		||||
import (
 | 
			
		||||
	"github.com/spf13/cobra"
 | 
			
		||||
	"k8s.io/cli-runtime/pkg/genericclioptions"
 | 
			
		||||
 | 
			
		||||
	cmdutil "k8s.io/kubectl/pkg/cmd/util"
 | 
			
		||||
)
 | 
			
		||||
 | 
			
		||||
// NewCmdAuth returns an initialized Command instance for 'auth' sub command
 | 
			
		||||
func NewCmdAuth(f cmdutil.Factory, streams genericclioptions.IOStreams) *cobra.Command {
 | 
			
		||||
	// Parent command to which all subcommands are added.
 | 
			
		||||
	cmds := &cobra.Command{
 | 
			
		||||
		Use:   "auth",
 | 
			
		||||
		Short: "Inspect authorization",
 | 
			
		||||
		Long:  `Inspect authorization`,
 | 
			
		||||
		Run:   cmdutil.DefaultSubCommandRun(streams.ErrOut),
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	cmds.AddCommand(NewCmdCanI(f, streams))
 | 
			
		||||
	cmds.AddCommand(NewCmdReconcile(f, streams))
 | 
			
		||||
 | 
			
		||||
	return cmds
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -0,0 +1,413 @@
 | 
			
		|||
/*
 | 
			
		||||
Copyright 2017 The Kubernetes 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 auth
 | 
			
		||||
 | 
			
		||||
import (
 | 
			
		||||
	"context"
 | 
			
		||||
	"errors"
 | 
			
		||||
	"fmt"
 | 
			
		||||
	"io"
 | 
			
		||||
	"io/ioutil"
 | 
			
		||||
	"os"
 | 
			
		||||
	"sort"
 | 
			
		||||
	"strings"
 | 
			
		||||
 | 
			
		||||
	"github.com/spf13/cobra"
 | 
			
		||||
 | 
			
		||||
	authorizationv1 "k8s.io/api/authorization/v1"
 | 
			
		||||
	rbacv1 "k8s.io/api/rbac/v1"
 | 
			
		||||
	"k8s.io/apimachinery/pkg/api/meta"
 | 
			
		||||
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 | 
			
		||||
	"k8s.io/apimachinery/pkg/runtime/schema"
 | 
			
		||||
	utilerrors "k8s.io/apimachinery/pkg/util/errors"
 | 
			
		||||
	"k8s.io/apimachinery/pkg/util/sets"
 | 
			
		||||
	"k8s.io/cli-runtime/pkg/genericclioptions"
 | 
			
		||||
	"k8s.io/cli-runtime/pkg/printers"
 | 
			
		||||
	discovery "k8s.io/client-go/discovery"
 | 
			
		||||
	authorizationv1client "k8s.io/client-go/kubernetes/typed/authorization/v1"
 | 
			
		||||
	cmdutil "k8s.io/kubectl/pkg/cmd/util"
 | 
			
		||||
	"k8s.io/kubectl/pkg/describe"
 | 
			
		||||
	rbacutil "k8s.io/kubectl/pkg/util/rbac"
 | 
			
		||||
	"k8s.io/kubectl/pkg/util/templates"
 | 
			
		||||
)
 | 
			
		||||
 | 
			
		||||
// CanIOptions is the start of the data required to perform the operation.  As new fields are added, add them here instead of
 | 
			
		||||
// referencing the cmd.Flags()
 | 
			
		||||
type CanIOptions struct {
 | 
			
		||||
	AllNamespaces   bool
 | 
			
		||||
	Quiet           bool
 | 
			
		||||
	NoHeaders       bool
 | 
			
		||||
	Namespace       string
 | 
			
		||||
	AuthClient      authorizationv1client.AuthorizationV1Interface
 | 
			
		||||
	DiscoveryClient discovery.DiscoveryInterface
 | 
			
		||||
 | 
			
		||||
	Verb           string
 | 
			
		||||
	Resource       schema.GroupVersionResource
 | 
			
		||||
	NonResourceURL string
 | 
			
		||||
	Subresource    string
 | 
			
		||||
	ResourceName   string
 | 
			
		||||
	List           bool
 | 
			
		||||
 | 
			
		||||
	genericclioptions.IOStreams
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
var (
 | 
			
		||||
	canILong = templates.LongDesc(`
 | 
			
		||||
		Check whether an action is allowed.
 | 
			
		||||
 | 
			
		||||
		VERB is a logical Kubernetes API verb like 'get', 'list', 'watch', 'delete', etc.
 | 
			
		||||
		TYPE is a Kubernetes resource. Shortcuts and groups will be resolved.
 | 
			
		||||
		NONRESOURCEURL is a partial URL starts with "/".
 | 
			
		||||
		NAME is the name of a particular Kubernetes resource.`)
 | 
			
		||||
 | 
			
		||||
	canIExample = templates.Examples(`
 | 
			
		||||
		# Check to see if I can create pods in any namespace
 | 
			
		||||
		kubectl auth can-i create pods --all-namespaces
 | 
			
		||||
 | 
			
		||||
		# Check to see if I can list deployments in my current namespace
 | 
			
		||||
		kubectl auth can-i list deployments.apps
 | 
			
		||||
 | 
			
		||||
		# Check to see if I can do everything in my current namespace ("*" means all)
 | 
			
		||||
		kubectl auth can-i '*' '*'
 | 
			
		||||
 | 
			
		||||
		# Check to see if I can get the job named "bar" in namespace "foo"
 | 
			
		||||
		kubectl auth can-i list jobs.batch/bar -n foo
 | 
			
		||||
 | 
			
		||||
		# Check to see if I can read pod logs
 | 
			
		||||
		kubectl auth can-i get pods --subresource=log
 | 
			
		||||
 | 
			
		||||
		# Check to see if I can access the URL /logs/
 | 
			
		||||
		kubectl auth can-i get /logs/
 | 
			
		||||
 | 
			
		||||
		# List all allowed actions in namespace "foo"
 | 
			
		||||
		kubectl auth can-i --list --namespace=foo`)
 | 
			
		||||
 | 
			
		||||
	resourceVerbs       = sets.NewString("get", "list", "watch", "create", "update", "patch", "delete", "deletecollection", "use", "bind", "impersonate", "*")
 | 
			
		||||
	nonResourceURLVerbs = sets.NewString("get", "put", "post", "head", "options", "delete", "patch", "*")
 | 
			
		||||
)
 | 
			
		||||
 | 
			
		||||
// NewCmdCanI returns an initialized Command for 'auth can-i' sub command
 | 
			
		||||
func NewCmdCanI(f cmdutil.Factory, streams genericclioptions.IOStreams) *cobra.Command {
 | 
			
		||||
	o := &CanIOptions{
 | 
			
		||||
		IOStreams: streams,
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	cmd := &cobra.Command{
 | 
			
		||||
		Use:                   "can-i VERB [TYPE | TYPE/NAME | NONRESOURCEURL]",
 | 
			
		||||
		DisableFlagsInUseLine: true,
 | 
			
		||||
		Short:                 "Check whether an action is allowed",
 | 
			
		||||
		Long:                  canILong,
 | 
			
		||||
		Example:               canIExample,
 | 
			
		||||
		Run: func(cmd *cobra.Command, args []string) {
 | 
			
		||||
			cmdutil.CheckErr(o.Complete(f, args))
 | 
			
		||||
			cmdutil.CheckErr(o.Validate())
 | 
			
		||||
			var err error
 | 
			
		||||
			if o.List {
 | 
			
		||||
				err = o.RunAccessList()
 | 
			
		||||
			} else {
 | 
			
		||||
				var allowed bool
 | 
			
		||||
				allowed, err = o.RunAccessCheck()
 | 
			
		||||
				if err == nil {
 | 
			
		||||
					if !allowed {
 | 
			
		||||
						os.Exit(1)
 | 
			
		||||
					}
 | 
			
		||||
				}
 | 
			
		||||
			}
 | 
			
		||||
			cmdutil.CheckErr(err)
 | 
			
		||||
		},
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	cmd.Flags().BoolVarP(&o.AllNamespaces, "all-namespaces", "A", o.AllNamespaces, "If true, check the specified action in all namespaces.")
 | 
			
		||||
	cmd.Flags().BoolVarP(&o.Quiet, "quiet", "q", o.Quiet, "If true, suppress output and just return the exit code.")
 | 
			
		||||
	cmd.Flags().StringVar(&o.Subresource, "subresource", o.Subresource, "SubResource such as pod/log or deployment/scale")
 | 
			
		||||
	cmd.Flags().BoolVar(&o.List, "list", o.List, "If true, prints all allowed actions.")
 | 
			
		||||
	cmd.Flags().BoolVar(&o.NoHeaders, "no-headers", o.NoHeaders, "If true, prints allowed actions without headers")
 | 
			
		||||
	return cmd
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// Complete completes all the required options
 | 
			
		||||
func (o *CanIOptions) Complete(f cmdutil.Factory, args []string) error {
 | 
			
		||||
	if o.List {
 | 
			
		||||
		if len(args) != 0 {
 | 
			
		||||
			return errors.New("list option must be specified with no arguments")
 | 
			
		||||
		}
 | 
			
		||||
	} else {
 | 
			
		||||
		if o.Quiet {
 | 
			
		||||
			o.Out = ioutil.Discard
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		switch len(args) {
 | 
			
		||||
		case 2:
 | 
			
		||||
			o.Verb = args[0]
 | 
			
		||||
			if strings.HasPrefix(args[1], "/") {
 | 
			
		||||
				o.NonResourceURL = args[1]
 | 
			
		||||
				break
 | 
			
		||||
			}
 | 
			
		||||
			resourceTokens := strings.SplitN(args[1], "/", 2)
 | 
			
		||||
			restMapper, err := f.ToRESTMapper()
 | 
			
		||||
			if err != nil {
 | 
			
		||||
				return err
 | 
			
		||||
			}
 | 
			
		||||
			o.Resource = o.resourceFor(restMapper, resourceTokens[0])
 | 
			
		||||
			if len(resourceTokens) > 1 {
 | 
			
		||||
				o.ResourceName = resourceTokens[1]
 | 
			
		||||
			}
 | 
			
		||||
		default:
 | 
			
		||||
			return errors.New("you must specify two or three arguments: verb, resource, and optional resourceName")
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	var err error
 | 
			
		||||
	client, err := f.KubernetesClientSet()
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
	o.AuthClient = client.AuthorizationV1()
 | 
			
		||||
	o.DiscoveryClient = client.Discovery()
 | 
			
		||||
	o.Namespace = ""
 | 
			
		||||
	if !o.AllNamespaces {
 | 
			
		||||
		o.Namespace, _, err = f.ToRawKubeConfigLoader().Namespace()
 | 
			
		||||
		if err != nil {
 | 
			
		||||
			return err
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// Validate makes sure provided values for CanIOptions are valid
 | 
			
		||||
func (o *CanIOptions) Validate() error {
 | 
			
		||||
	if o.List {
 | 
			
		||||
		if o.Quiet || o.AllNamespaces || o.Subresource != "" {
 | 
			
		||||
			return errors.New("list option can't be specified with neither quiet, all-namespaces nor subresource options")
 | 
			
		||||
		}
 | 
			
		||||
		return nil
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if o.NonResourceURL != "" {
 | 
			
		||||
		if o.Subresource != "" {
 | 
			
		||||
			return fmt.Errorf("--subresource can not be used with NonResourceURL")
 | 
			
		||||
		}
 | 
			
		||||
		if o.Resource != (schema.GroupVersionResource{}) || o.ResourceName != "" {
 | 
			
		||||
			return fmt.Errorf("NonResourceURL and ResourceName can not specified together")
 | 
			
		||||
		}
 | 
			
		||||
		if !isKnownNonResourceVerb(o.Verb) {
 | 
			
		||||
			fmt.Fprintf(o.ErrOut, "Warning: verb '%s' is not a known verb\n", o.Verb)
 | 
			
		||||
		}
 | 
			
		||||
	} else if !o.Resource.Empty() && !o.AllNamespaces && o.DiscoveryClient != nil {
 | 
			
		||||
		if namespaced, err := isNamespaced(o.Resource, o.DiscoveryClient); err == nil && !namespaced {
 | 
			
		||||
			if len(o.Resource.Group) == 0 {
 | 
			
		||||
				fmt.Fprintf(o.ErrOut, "Warning: resource '%s' is not namespace scoped\n", o.Resource.Resource)
 | 
			
		||||
			} else {
 | 
			
		||||
				fmt.Fprintf(o.ErrOut, "Warning: resource '%s' is not namespace scoped in group '%s'\n", o.Resource.Resource, o.Resource.Group)
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
		if !isKnownResourceVerb(o.Verb) {
 | 
			
		||||
			fmt.Fprintf(o.ErrOut, "Warning: verb '%s' is not a known verb\n", o.Verb)
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if o.NoHeaders {
 | 
			
		||||
		return fmt.Errorf("--no-headers cannot be set without --list specified")
 | 
			
		||||
	}
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// RunAccessList lists all the access current user has
 | 
			
		||||
func (o *CanIOptions) RunAccessList() error {
 | 
			
		||||
	sar := &authorizationv1.SelfSubjectRulesReview{
 | 
			
		||||
		Spec: authorizationv1.SelfSubjectRulesReviewSpec{
 | 
			
		||||
			Namespace: o.Namespace,
 | 
			
		||||
		},
 | 
			
		||||
	}
 | 
			
		||||
	response, err := o.AuthClient.SelfSubjectRulesReviews().Create(context.TODO(), sar, metav1.CreateOptions{})
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return o.printStatus(response.Status)
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// RunAccessCheck checks if user has access to a certain resource or non resource URL
 | 
			
		||||
func (o *CanIOptions) RunAccessCheck() (bool, error) {
 | 
			
		||||
	var sar *authorizationv1.SelfSubjectAccessReview
 | 
			
		||||
	if o.NonResourceURL == "" {
 | 
			
		||||
		sar = &authorizationv1.SelfSubjectAccessReview{
 | 
			
		||||
			Spec: authorizationv1.SelfSubjectAccessReviewSpec{
 | 
			
		||||
				ResourceAttributes: &authorizationv1.ResourceAttributes{
 | 
			
		||||
					Namespace:   o.Namespace,
 | 
			
		||||
					Verb:        o.Verb,
 | 
			
		||||
					Group:       o.Resource.Group,
 | 
			
		||||
					Resource:    o.Resource.Resource,
 | 
			
		||||
					Subresource: o.Subresource,
 | 
			
		||||
					Name:        o.ResourceName,
 | 
			
		||||
				},
 | 
			
		||||
			},
 | 
			
		||||
		}
 | 
			
		||||
	} else {
 | 
			
		||||
		sar = &authorizationv1.SelfSubjectAccessReview{
 | 
			
		||||
			Spec: authorizationv1.SelfSubjectAccessReviewSpec{
 | 
			
		||||
				NonResourceAttributes: &authorizationv1.NonResourceAttributes{
 | 
			
		||||
					Verb: o.Verb,
 | 
			
		||||
					Path: o.NonResourceURL,
 | 
			
		||||
				},
 | 
			
		||||
			},
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	response, err := o.AuthClient.SelfSubjectAccessReviews().Create(context.TODO(), sar, metav1.CreateOptions{})
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return false, err
 | 
			
		||||
	}
 | 
			
		||||
	if response.Status.Allowed {
 | 
			
		||||
		fmt.Fprintln(o.Out, "yes")
 | 
			
		||||
	} else {
 | 
			
		||||
		fmt.Fprint(o.Out, "no")
 | 
			
		||||
		if len(response.Status.Reason) > 0 {
 | 
			
		||||
			fmt.Fprintf(o.Out, " - %v", response.Status.Reason)
 | 
			
		||||
		}
 | 
			
		||||
		if len(response.Status.EvaluationError) > 0 {
 | 
			
		||||
			fmt.Fprintf(o.Out, " - %v", response.Status.EvaluationError)
 | 
			
		||||
		}
 | 
			
		||||
		fmt.Fprintln(o.Out)
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return response.Status.Allowed, nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func (o *CanIOptions) resourceFor(mapper meta.RESTMapper, resourceArg string) schema.GroupVersionResource {
 | 
			
		||||
	if resourceArg == "*" {
 | 
			
		||||
		return schema.GroupVersionResource{Resource: resourceArg}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	fullySpecifiedGVR, groupResource := schema.ParseResourceArg(strings.ToLower(resourceArg))
 | 
			
		||||
	gvr := schema.GroupVersionResource{}
 | 
			
		||||
	if fullySpecifiedGVR != nil {
 | 
			
		||||
		gvr, _ = mapper.ResourceFor(*fullySpecifiedGVR)
 | 
			
		||||
	}
 | 
			
		||||
	if gvr.Empty() {
 | 
			
		||||
		var err error
 | 
			
		||||
		gvr, err = mapper.ResourceFor(groupResource.WithVersion(""))
 | 
			
		||||
		if err != nil {
 | 
			
		||||
			if len(groupResource.Group) == 0 {
 | 
			
		||||
				fmt.Fprintf(o.ErrOut, "Warning: the server doesn't have a resource type '%s'\n", groupResource.Resource)
 | 
			
		||||
			} else {
 | 
			
		||||
				fmt.Fprintf(o.ErrOut, "Warning: the server doesn't have a resource type '%s' in group '%s'\n", groupResource.Resource, groupResource.Group)
 | 
			
		||||
			}
 | 
			
		||||
			return schema.GroupVersionResource{Resource: resourceArg}
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return gvr
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func (o *CanIOptions) printStatus(status authorizationv1.SubjectRulesReviewStatus) error {
 | 
			
		||||
	if status.Incomplete {
 | 
			
		||||
		fmt.Fprintf(o.ErrOut, "warning: the list may be incomplete: %v\n", status.EvaluationError)
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	breakdownRules := []rbacv1.PolicyRule{}
 | 
			
		||||
	for _, rule := range convertToPolicyRule(status) {
 | 
			
		||||
		breakdownRules = append(breakdownRules, rbacutil.BreakdownRule(rule)...)
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	compactRules, err := rbacutil.CompactRules(breakdownRules)
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
	sort.Stable(rbacutil.SortableRuleSlice(compactRules))
 | 
			
		||||
 | 
			
		||||
	w := printers.GetNewTabWriter(o.Out)
 | 
			
		||||
	defer w.Flush()
 | 
			
		||||
 | 
			
		||||
	allErrs := []error{}
 | 
			
		||||
	if !o.NoHeaders {
 | 
			
		||||
		if err := printAccessHeaders(w); err != nil {
 | 
			
		||||
			allErrs = append(allErrs, err)
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if err := printAccess(w, compactRules); err != nil {
 | 
			
		||||
		allErrs = append(allErrs, err)
 | 
			
		||||
	}
 | 
			
		||||
	return utilerrors.NewAggregate(allErrs)
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func convertToPolicyRule(status authorizationv1.SubjectRulesReviewStatus) []rbacv1.PolicyRule {
 | 
			
		||||
	ret := []rbacv1.PolicyRule{}
 | 
			
		||||
	for _, resource := range status.ResourceRules {
 | 
			
		||||
		ret = append(ret, rbacv1.PolicyRule{
 | 
			
		||||
			Verbs:         resource.Verbs,
 | 
			
		||||
			APIGroups:     resource.APIGroups,
 | 
			
		||||
			Resources:     resource.Resources,
 | 
			
		||||
			ResourceNames: resource.ResourceNames,
 | 
			
		||||
		})
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	for _, nonResource := range status.NonResourceRules {
 | 
			
		||||
		ret = append(ret, rbacv1.PolicyRule{
 | 
			
		||||
			Verbs:           nonResource.Verbs,
 | 
			
		||||
			NonResourceURLs: nonResource.NonResourceURLs,
 | 
			
		||||
		})
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return ret
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func printAccessHeaders(out io.Writer) error {
 | 
			
		||||
	columnNames := []string{"Resources", "Non-Resource URLs", "Resource Names", "Verbs"}
 | 
			
		||||
	_, err := fmt.Fprintf(out, "%s\n", strings.Join(columnNames, "\t"))
 | 
			
		||||
	return err
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func printAccess(out io.Writer, rules []rbacv1.PolicyRule) error {
 | 
			
		||||
	for _, r := range rules {
 | 
			
		||||
		if _, err := fmt.Fprintf(out, "%s\t%v\t%v\t%v\n", describe.CombineResourceGroup(r.Resources, r.APIGroups), r.NonResourceURLs, r.ResourceNames, r.Verbs); err != nil {
 | 
			
		||||
			return err
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func isNamespaced(gvr schema.GroupVersionResource, discoveryClient discovery.DiscoveryInterface) (bool, error) {
 | 
			
		||||
	if gvr.Resource == "*" {
 | 
			
		||||
		return true, nil
 | 
			
		||||
	}
 | 
			
		||||
	apiResourceList, err := discoveryClient.ServerResourcesForGroupVersion(schema.GroupVersion{
 | 
			
		||||
		Group: gvr.Group, Version: gvr.Version,
 | 
			
		||||
	}.String())
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return true, err
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	for _, resource := range apiResourceList.APIResources {
 | 
			
		||||
		if resource.Name == gvr.Resource {
 | 
			
		||||
			return resource.Namespaced, nil
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return false, fmt.Errorf("the server doesn't have a resource type '%s' in group '%s'", gvr.Resource, gvr.Group)
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func isKnownResourceVerb(s string) bool {
 | 
			
		||||
	return resourceVerbs.Has(s)
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func isKnownNonResourceVerb(s string) bool {
 | 
			
		||||
	return nonResourceURLVerbs.Has(s)
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -0,0 +1,252 @@
 | 
			
		|||
/*
 | 
			
		||||
Copyright 2017 The Kubernetes 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 auth
 | 
			
		||||
 | 
			
		||||
import (
 | 
			
		||||
	"bytes"
 | 
			
		||||
	"fmt"
 | 
			
		||||
	"io/ioutil"
 | 
			
		||||
	"net/http"
 | 
			
		||||
	"strings"
 | 
			
		||||
	"testing"
 | 
			
		||||
 | 
			
		||||
	authorizationv1 "k8s.io/api/authorization/v1"
 | 
			
		||||
	"k8s.io/apimachinery/pkg/runtime"
 | 
			
		||||
	"k8s.io/apimachinery/pkg/runtime/schema"
 | 
			
		||||
	"k8s.io/cli-runtime/pkg/genericclioptions"
 | 
			
		||||
	restclient "k8s.io/client-go/rest"
 | 
			
		||||
	"k8s.io/client-go/rest/fake"
 | 
			
		||||
	cmdtesting "k8s.io/kubectl/pkg/cmd/testing"
 | 
			
		||||
	"k8s.io/kubectl/pkg/scheme"
 | 
			
		||||
)
 | 
			
		||||
 | 
			
		||||
func TestRunAccessCheck(t *testing.T) {
 | 
			
		||||
	tests := []struct {
 | 
			
		||||
		name      string
 | 
			
		||||
		o         *CanIOptions
 | 
			
		||||
		args      []string
 | 
			
		||||
		allowed   bool
 | 
			
		||||
		serverErr error
 | 
			
		||||
 | 
			
		||||
		expectedBodyStrings []string
 | 
			
		||||
	}{
 | 
			
		||||
		{
 | 
			
		||||
			name:    "restmapping for args",
 | 
			
		||||
			o:       &CanIOptions{},
 | 
			
		||||
			args:    []string{"get", "replicaset"},
 | 
			
		||||
			allowed: true,
 | 
			
		||||
			expectedBodyStrings: []string{
 | 
			
		||||
				`{"resourceAttributes":{"namespace":"test","verb":"get","group":"extensions","resource":"replicasets"}}`,
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			name:    "simple success",
 | 
			
		||||
			o:       &CanIOptions{},
 | 
			
		||||
			args:    []string{"get", "deployments.extensions/foo"},
 | 
			
		||||
			allowed: true,
 | 
			
		||||
			expectedBodyStrings: []string{
 | 
			
		||||
				`{"resourceAttributes":{"namespace":"test","verb":"get","group":"extensions","resource":"deployments","name":"foo"}}`,
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			name: "all namespaces",
 | 
			
		||||
			o: &CanIOptions{
 | 
			
		||||
				AllNamespaces: true,
 | 
			
		||||
			},
 | 
			
		||||
			args:    []string{"get", "deployments.extensions/foo"},
 | 
			
		||||
			allowed: true,
 | 
			
		||||
			expectedBodyStrings: []string{
 | 
			
		||||
				`{"resourceAttributes":{"verb":"get","group":"extensions","resource":"deployments","name":"foo"}}`,
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			name: "disallowed",
 | 
			
		||||
			o: &CanIOptions{
 | 
			
		||||
				AllNamespaces: true,
 | 
			
		||||
			},
 | 
			
		||||
			args:    []string{"get", "deployments.extensions/foo"},
 | 
			
		||||
			allowed: false,
 | 
			
		||||
			expectedBodyStrings: []string{
 | 
			
		||||
				`{"resourceAttributes":{"verb":"get","group":"extensions","resource":"deployments","name":"foo"}}`,
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			name: "forcedError",
 | 
			
		||||
			o: &CanIOptions{
 | 
			
		||||
				AllNamespaces: true,
 | 
			
		||||
			},
 | 
			
		||||
			args:      []string{"get", "deployments.extensions/foo"},
 | 
			
		||||
			allowed:   false,
 | 
			
		||||
			serverErr: fmt.Errorf("forcedError"),
 | 
			
		||||
			expectedBodyStrings: []string{
 | 
			
		||||
				`{"resourceAttributes":{"verb":"get","group":"extensions","resource":"deployments","name":"foo"}}`,
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			name: "sub resource",
 | 
			
		||||
			o: &CanIOptions{
 | 
			
		||||
				AllNamespaces: true,
 | 
			
		||||
				Subresource:   "log",
 | 
			
		||||
			},
 | 
			
		||||
			args:    []string{"get", "pods"},
 | 
			
		||||
			allowed: true,
 | 
			
		||||
			expectedBodyStrings: []string{
 | 
			
		||||
				`{"resourceAttributes":{"verb":"get","resource":"pods","subresource":"log"}}`,
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
		{
 | 
			
		||||
			name:    "nonResourceURL",
 | 
			
		||||
			o:       &CanIOptions{},
 | 
			
		||||
			args:    []string{"get", "/logs"},
 | 
			
		||||
			allowed: true,
 | 
			
		||||
			expectedBodyStrings: []string{
 | 
			
		||||
				`{"nonResourceAttributes":{"path":"/logs","verb":"get"}}`,
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	for _, test := range tests {
 | 
			
		||||
		t.Run(test.name, func(t *testing.T) {
 | 
			
		||||
			test.o.Out = ioutil.Discard
 | 
			
		||||
			test.o.ErrOut = ioutil.Discard
 | 
			
		||||
 | 
			
		||||
			tf := cmdtesting.NewTestFactory().WithNamespace("test")
 | 
			
		||||
			defer tf.Cleanup()
 | 
			
		||||
 | 
			
		||||
			ns := scheme.Codecs.WithoutConversion()
 | 
			
		||||
 | 
			
		||||
			tf.Client = &fake.RESTClient{
 | 
			
		||||
				GroupVersion:         schema.GroupVersion{Group: "", Version: "v1"},
 | 
			
		||||
				NegotiatedSerializer: ns,
 | 
			
		||||
				Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
 | 
			
		||||
					expectPath := "/apis/authorization.k8s.io/v1/selfsubjectaccessreviews"
 | 
			
		||||
					if req.URL.Path != expectPath {
 | 
			
		||||
						t.Errorf("%s: expected %v, got %v", test.name, expectPath, req.URL.Path)
 | 
			
		||||
						return nil, nil
 | 
			
		||||
					}
 | 
			
		||||
					bodyBits, err := ioutil.ReadAll(req.Body)
 | 
			
		||||
					if err != nil {
 | 
			
		||||
						t.Errorf("%s: %v", test.name, err)
 | 
			
		||||
						return nil, nil
 | 
			
		||||
					}
 | 
			
		||||
					body := string(bodyBits)
 | 
			
		||||
 | 
			
		||||
					for _, expectedBody := range test.expectedBodyStrings {
 | 
			
		||||
						if !strings.Contains(body, expectedBody) {
 | 
			
		||||
							t.Errorf("%s expecting %s in %s", test.name, expectedBody, body)
 | 
			
		||||
						}
 | 
			
		||||
					}
 | 
			
		||||
 | 
			
		||||
					return &http.Response{
 | 
			
		||||
							StatusCode: http.StatusOK,
 | 
			
		||||
							Body: ioutil.NopCloser(bytes.NewBufferString(
 | 
			
		||||
								fmt.Sprintf(`{"kind":"SelfSubjectAccessReview","apiVersion":"authorization.k8s.io/v1","status":{"allowed":%v}}`, test.allowed),
 | 
			
		||||
							)),
 | 
			
		||||
						},
 | 
			
		||||
						test.serverErr
 | 
			
		||||
				}),
 | 
			
		||||
			}
 | 
			
		||||
			tf.ClientConfigVal = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &schema.GroupVersion{Group: "", Version: "v1"}}}
 | 
			
		||||
 | 
			
		||||
			if err := test.o.Complete(tf, test.args); err != nil {
 | 
			
		||||
				t.Errorf("%s: %v", test.name, err)
 | 
			
		||||
				return
 | 
			
		||||
			}
 | 
			
		||||
 | 
			
		||||
			actualAllowed, err := test.o.RunAccessCheck()
 | 
			
		||||
			switch {
 | 
			
		||||
			case test.serverErr == nil && err == nil:
 | 
			
		||||
				// pass
 | 
			
		||||
			case err != nil && test.serverErr != nil && strings.Contains(err.Error(), test.serverErr.Error()):
 | 
			
		||||
				// pass
 | 
			
		||||
			default:
 | 
			
		||||
				t.Errorf("%s: expected %v, got %v", test.name, test.serverErr, err)
 | 
			
		||||
				return
 | 
			
		||||
			}
 | 
			
		||||
			if actualAllowed != test.allowed {
 | 
			
		||||
				t.Errorf("%s: expected %v, got %v", test.name, test.allowed, actualAllowed)
 | 
			
		||||
				return
 | 
			
		||||
			}
 | 
			
		||||
		})
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func TestRunAccessList(t *testing.T) {
 | 
			
		||||
	t.Run("test access list", func(t *testing.T) {
 | 
			
		||||
		options := &CanIOptions{List: true}
 | 
			
		||||
		expectedOutput := "Resources   Non-Resource URLs   Resource Names    Verbs\n" +
 | 
			
		||||
			"job.*       []                  [test-resource]   [get list]\n" +
 | 
			
		||||
			"pod.*       []                  [test-resource]   [get list]\n" +
 | 
			
		||||
			"            [/apis/*]           []                [get]\n" +
 | 
			
		||||
			"            [/version]          []                [get]\n"
 | 
			
		||||
 | 
			
		||||
		tf := cmdtesting.NewTestFactory().WithNamespace("test")
 | 
			
		||||
		defer tf.Cleanup()
 | 
			
		||||
 | 
			
		||||
		ns := scheme.Codecs.WithoutConversion()
 | 
			
		||||
		codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
 | 
			
		||||
 | 
			
		||||
		tf.Client = &fake.RESTClient{
 | 
			
		||||
			GroupVersion:         schema.GroupVersion{Group: "", Version: "v1"},
 | 
			
		||||
			NegotiatedSerializer: ns,
 | 
			
		||||
			Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
 | 
			
		||||
				switch req.URL.Path {
 | 
			
		||||
				case "/apis/authorization.k8s.io/v1/selfsubjectrulesreviews":
 | 
			
		||||
					body := ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(codec, getSelfSubjectRulesReview()))))
 | 
			
		||||
					return &http.Response{StatusCode: http.StatusOK, Body: body}, nil
 | 
			
		||||
				default:
 | 
			
		||||
					t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
 | 
			
		||||
					return nil, nil
 | 
			
		||||
				}
 | 
			
		||||
			}),
 | 
			
		||||
		}
 | 
			
		||||
		ioStreams, _, buf, _ := genericclioptions.NewTestIOStreams()
 | 
			
		||||
		options.IOStreams = ioStreams
 | 
			
		||||
		if err := options.Complete(tf, []string{}); err != nil {
 | 
			
		||||
			t.Errorf("got unexpected error when do Complete(): %v", err)
 | 
			
		||||
			return
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		err := options.RunAccessList()
 | 
			
		||||
		if err != nil {
 | 
			
		||||
			t.Errorf("got unexpected error when do RunAccessList(): %v", err)
 | 
			
		||||
		} else if buf.String() != expectedOutput {
 | 
			
		||||
			t.Errorf("expected %v\n but got %v\n", expectedOutput, buf.String())
 | 
			
		||||
		}
 | 
			
		||||
	})
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func getSelfSubjectRulesReview() *authorizationv1.SelfSubjectRulesReview {
 | 
			
		||||
	return &authorizationv1.SelfSubjectRulesReview{
 | 
			
		||||
		Status: authorizationv1.SubjectRulesReviewStatus{
 | 
			
		||||
			ResourceRules: []authorizationv1.ResourceRule{
 | 
			
		||||
				{
 | 
			
		||||
					Verbs:         []string{"get", "list"},
 | 
			
		||||
					APIGroups:     []string{"*"},
 | 
			
		||||
					Resources:     []string{"pod", "job"},
 | 
			
		||||
					ResourceNames: []string{"test-resource"},
 | 
			
		||||
				},
 | 
			
		||||
			},
 | 
			
		||||
			NonResourceRules: []authorizationv1.NonResourceRule{
 | 
			
		||||
				{
 | 
			
		||||
					Verbs:           []string{"get"},
 | 
			
		||||
					NonResourceURLs: []string{"/apis/*", "/version"},
 | 
			
		||||
				},
 | 
			
		||||
			},
 | 
			
		||||
		},
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -0,0 +1,343 @@
 | 
			
		|||
/*
 | 
			
		||||
Copyright 2017 The Kubernetes 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 auth
 | 
			
		||||
 | 
			
		||||
import (
 | 
			
		||||
	"errors"
 | 
			
		||||
	"fmt"
 | 
			
		||||
 | 
			
		||||
	"github.com/spf13/cobra"
 | 
			
		||||
	"k8s.io/apimachinery/pkg/runtime"
 | 
			
		||||
	"k8s.io/klog/v2"
 | 
			
		||||
 | 
			
		||||
	rbacv1 "k8s.io/api/rbac/v1"
 | 
			
		||||
	rbacv1alpha1 "k8s.io/api/rbac/v1alpha1"
 | 
			
		||||
	rbacv1beta1 "k8s.io/api/rbac/v1beta1"
 | 
			
		||||
	"k8s.io/cli-runtime/pkg/genericclioptions"
 | 
			
		||||
	"k8s.io/cli-runtime/pkg/printers"
 | 
			
		||||
	"k8s.io/cli-runtime/pkg/resource"
 | 
			
		||||
	corev1client "k8s.io/client-go/kubernetes/typed/core/v1"
 | 
			
		||||
	rbacv1client "k8s.io/client-go/kubernetes/typed/rbac/v1"
 | 
			
		||||
	"k8s.io/component-helpers/auth/rbac/reconciliation"
 | 
			
		||||
	cmdutil "k8s.io/kubectl/pkg/cmd/util"
 | 
			
		||||
	"k8s.io/kubectl/pkg/scheme"
 | 
			
		||||
	"k8s.io/kubectl/pkg/util/templates"
 | 
			
		||||
)
 | 
			
		||||
 | 
			
		||||
// ReconcileOptions is the start of the data required to perform the operation.  As new fields are added, add them here instead of
 | 
			
		||||
// referencing the cmd.Flags()
 | 
			
		||||
type ReconcileOptions struct {
 | 
			
		||||
	PrintFlags             *genericclioptions.PrintFlags
 | 
			
		||||
	FilenameOptions        *resource.FilenameOptions
 | 
			
		||||
	DryRun                 bool
 | 
			
		||||
	RemoveExtraPermissions bool
 | 
			
		||||
	RemoveExtraSubjects    bool
 | 
			
		||||
 | 
			
		||||
	Visitor         resource.Visitor
 | 
			
		||||
	RBACClient      rbacv1client.RbacV1Interface
 | 
			
		||||
	NamespaceClient corev1client.CoreV1Interface
 | 
			
		||||
 | 
			
		||||
	PrintObject printers.ResourcePrinterFunc
 | 
			
		||||
 | 
			
		||||
	genericclioptions.IOStreams
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
var (
 | 
			
		||||
	reconcileLong = templates.LongDesc(`
 | 
			
		||||
		Reconciles rules for RBAC Role, RoleBinding, ClusterRole, and ClusterRole binding objects.
 | 
			
		||||
 | 
			
		||||
		Missing objects are created, and the containing namespace is created for namespaced objects, if required.
 | 
			
		||||
 | 
			
		||||
		Existing roles are updated to include the permissions in the input objects,
 | 
			
		||||
		and remove extra permissions if --remove-extra-permissions is specified.
 | 
			
		||||
 | 
			
		||||
		Existing bindings are updated to include the subjects in the input objects,
 | 
			
		||||
		and remove extra subjects if --remove-extra-subjects is specified.
 | 
			
		||||
 | 
			
		||||
		This is preferred to 'apply' for RBAC resources so that semantically-aware merging of rules and subjects is done.`)
 | 
			
		||||
 | 
			
		||||
	reconcileExample = templates.Examples(`
 | 
			
		||||
		# Reconcile rbac resources from a file
 | 
			
		||||
		kubectl auth reconcile -f my-rbac-rules.yaml`)
 | 
			
		||||
)
 | 
			
		||||
 | 
			
		||||
// NewReconcileOptions returns a new ReconcileOptions instance
 | 
			
		||||
func NewReconcileOptions(ioStreams genericclioptions.IOStreams) *ReconcileOptions {
 | 
			
		||||
	return &ReconcileOptions{
 | 
			
		||||
		FilenameOptions: &resource.FilenameOptions{},
 | 
			
		||||
		PrintFlags:      genericclioptions.NewPrintFlags("reconciled").WithTypeSetter(scheme.Scheme),
 | 
			
		||||
		IOStreams:       ioStreams,
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// NewCmdReconcile holds the options for 'auth reconcile' sub command
 | 
			
		||||
func NewCmdReconcile(f cmdutil.Factory, streams genericclioptions.IOStreams) *cobra.Command {
 | 
			
		||||
	o := NewReconcileOptions(streams)
 | 
			
		||||
 | 
			
		||||
	cmd := &cobra.Command{
 | 
			
		||||
		Use:                   "reconcile -f FILENAME",
 | 
			
		||||
		DisableFlagsInUseLine: true,
 | 
			
		||||
		Short:                 "Reconciles rules for RBAC Role, RoleBinding, ClusterRole, and ClusterRole binding objects",
 | 
			
		||||
		Long:                  reconcileLong,
 | 
			
		||||
		Example:               reconcileExample,
 | 
			
		||||
		Run: func(cmd *cobra.Command, args []string) {
 | 
			
		||||
			cmdutil.CheckErr(o.Complete(cmd, f, args))
 | 
			
		||||
			cmdutil.CheckErr(o.Validate())
 | 
			
		||||
			cmdutil.CheckErr(o.RunReconcile())
 | 
			
		||||
		},
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	o.PrintFlags.AddFlags(cmd)
 | 
			
		||||
 | 
			
		||||
	cmdutil.AddFilenameOptionFlags(cmd, o.FilenameOptions, "identifying the resource to reconcile.")
 | 
			
		||||
	cmd.Flags().BoolVar(&o.RemoveExtraPermissions, "remove-extra-permissions", o.RemoveExtraPermissions, "If true, removes extra permissions added to roles")
 | 
			
		||||
	cmd.Flags().BoolVar(&o.RemoveExtraSubjects, "remove-extra-subjects", o.RemoveExtraSubjects, "If true, removes extra subjects added to rolebindings")
 | 
			
		||||
	cmdutil.AddDryRunFlag(cmd)
 | 
			
		||||
 | 
			
		||||
	return cmd
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// Complete completes all the required options
 | 
			
		||||
func (o *ReconcileOptions) Complete(cmd *cobra.Command, f cmdutil.Factory, args []string) error {
 | 
			
		||||
	if err := o.FilenameOptions.RequireFilenameOrKustomize(); err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if len(args) > 0 {
 | 
			
		||||
		return errors.New("no arguments are allowed")
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	o.DryRun = getClientSideDryRun(cmd)
 | 
			
		||||
 | 
			
		||||
	namespace, enforceNamespace, err := f.ToRawKubeConfigLoader().Namespace()
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	r := f.NewBuilder().
 | 
			
		||||
		WithScheme(scheme.Scheme, scheme.Scheme.PrioritizedVersionsAllGroups()...).
 | 
			
		||||
		ContinueOnError().
 | 
			
		||||
		NamespaceParam(namespace).DefaultNamespace().
 | 
			
		||||
		FilenameParam(enforceNamespace, o.FilenameOptions).
 | 
			
		||||
		Flatten().
 | 
			
		||||
		Do()
 | 
			
		||||
 | 
			
		||||
	if err := r.Err(); err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
	o.Visitor = r
 | 
			
		||||
 | 
			
		||||
	clientConfig, err := f.ToRESTConfig()
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
	o.RBACClient, err = rbacv1client.NewForConfig(clientConfig)
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
	o.NamespaceClient, err = corev1client.NewForConfig(clientConfig)
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if o.DryRun {
 | 
			
		||||
		o.PrintFlags.Complete("%s (dry run)")
 | 
			
		||||
	}
 | 
			
		||||
	printer, err := o.PrintFlags.ToPrinter()
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		return err
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	o.PrintObject = printer.PrintObj
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// Validate makes sure provided values for ReconcileOptions are valid
 | 
			
		||||
func (o *ReconcileOptions) Validate() error {
 | 
			
		||||
	if o.Visitor == nil {
 | 
			
		||||
		return errors.New("ReconcileOptions.Visitor must be set")
 | 
			
		||||
	}
 | 
			
		||||
	if o.RBACClient == nil {
 | 
			
		||||
		return errors.New("ReconcileOptions.RBACClient must be set")
 | 
			
		||||
	}
 | 
			
		||||
	if o.NamespaceClient == nil {
 | 
			
		||||
		return errors.New("ReconcileOptions.NamespaceClient must be set")
 | 
			
		||||
	}
 | 
			
		||||
	if o.PrintObject == nil {
 | 
			
		||||
		return errors.New("ReconcileOptions.Print must be set")
 | 
			
		||||
	}
 | 
			
		||||
	if o.Out == nil {
 | 
			
		||||
		return errors.New("ReconcileOptions.Out must be set")
 | 
			
		||||
	}
 | 
			
		||||
	if o.ErrOut == nil {
 | 
			
		||||
		return errors.New("ReconcileOptions.Err must be set")
 | 
			
		||||
	}
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// RunReconcile performs the execution
 | 
			
		||||
func (o *ReconcileOptions) RunReconcile() error {
 | 
			
		||||
	return o.Visitor.Visit(func(info *resource.Info, err error) error {
 | 
			
		||||
		if err != nil {
 | 
			
		||||
			return err
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		switch t := info.Object.(type) {
 | 
			
		||||
		case *rbacv1.Role:
 | 
			
		||||
			reconcileOptions := reconciliation.ReconcileRoleOptions{
 | 
			
		||||
				Confirm:                !o.DryRun,
 | 
			
		||||
				RemoveExtraPermissions: o.RemoveExtraPermissions,
 | 
			
		||||
				Role:                   reconciliation.RoleRuleOwner{Role: t},
 | 
			
		||||
				Client: reconciliation.RoleModifier{
 | 
			
		||||
					NamespaceClient: o.NamespaceClient.Namespaces(),
 | 
			
		||||
					Client:          o.RBACClient,
 | 
			
		||||
				},
 | 
			
		||||
			}
 | 
			
		||||
			result, err := reconcileOptions.Run()
 | 
			
		||||
			if err != nil {
 | 
			
		||||
				return err
 | 
			
		||||
			}
 | 
			
		||||
			o.printResults(result.Role.GetObject(), nil, nil, result.MissingRules, result.ExtraRules, result.Operation, result.Protected)
 | 
			
		||||
 | 
			
		||||
		case *rbacv1.ClusterRole:
 | 
			
		||||
			reconcileOptions := reconciliation.ReconcileRoleOptions{
 | 
			
		||||
				Confirm:                !o.DryRun,
 | 
			
		||||
				RemoveExtraPermissions: o.RemoveExtraPermissions,
 | 
			
		||||
				Role:                   reconciliation.ClusterRoleRuleOwner{ClusterRole: t},
 | 
			
		||||
				Client: reconciliation.ClusterRoleModifier{
 | 
			
		||||
					Client: o.RBACClient.ClusterRoles(),
 | 
			
		||||
				},
 | 
			
		||||
			}
 | 
			
		||||
			result, err := reconcileOptions.Run()
 | 
			
		||||
			if err != nil {
 | 
			
		||||
				return err
 | 
			
		||||
			}
 | 
			
		||||
			o.printResults(result.Role.GetObject(), nil, nil, result.MissingRules, result.ExtraRules, result.Operation, result.Protected)
 | 
			
		||||
 | 
			
		||||
		case *rbacv1.RoleBinding:
 | 
			
		||||
			reconcileOptions := reconciliation.ReconcileRoleBindingOptions{
 | 
			
		||||
				Confirm:             !o.DryRun,
 | 
			
		||||
				RemoveExtraSubjects: o.RemoveExtraSubjects,
 | 
			
		||||
				RoleBinding:         reconciliation.RoleBindingAdapter{RoleBinding: t},
 | 
			
		||||
				Client: reconciliation.RoleBindingClientAdapter{
 | 
			
		||||
					Client:          o.RBACClient,
 | 
			
		||||
					NamespaceClient: o.NamespaceClient.Namespaces(),
 | 
			
		||||
				},
 | 
			
		||||
			}
 | 
			
		||||
			result, err := reconcileOptions.Run()
 | 
			
		||||
			if err != nil {
 | 
			
		||||
				return err
 | 
			
		||||
			}
 | 
			
		||||
			o.printResults(result.RoleBinding.GetObject(), result.MissingSubjects, result.ExtraSubjects, nil, nil, result.Operation, result.Protected)
 | 
			
		||||
 | 
			
		||||
		case *rbacv1.ClusterRoleBinding:
 | 
			
		||||
			reconcileOptions := reconciliation.ReconcileRoleBindingOptions{
 | 
			
		||||
				Confirm:             !o.DryRun,
 | 
			
		||||
				RemoveExtraSubjects: o.RemoveExtraSubjects,
 | 
			
		||||
				RoleBinding:         reconciliation.ClusterRoleBindingAdapter{ClusterRoleBinding: t},
 | 
			
		||||
				Client: reconciliation.ClusterRoleBindingClientAdapter{
 | 
			
		||||
					Client: o.RBACClient.ClusterRoleBindings(),
 | 
			
		||||
				},
 | 
			
		||||
			}
 | 
			
		||||
			result, err := reconcileOptions.Run()
 | 
			
		||||
			if err != nil {
 | 
			
		||||
				return err
 | 
			
		||||
			}
 | 
			
		||||
			o.printResults(result.RoleBinding.GetObject(), result.MissingSubjects, result.ExtraSubjects, nil, nil, result.Operation, result.Protected)
 | 
			
		||||
 | 
			
		||||
		case *rbacv1beta1.Role,
 | 
			
		||||
			*rbacv1beta1.RoleBinding,
 | 
			
		||||
			*rbacv1beta1.ClusterRole,
 | 
			
		||||
			*rbacv1beta1.ClusterRoleBinding,
 | 
			
		||||
			*rbacv1alpha1.Role,
 | 
			
		||||
			*rbacv1alpha1.RoleBinding,
 | 
			
		||||
			*rbacv1alpha1.ClusterRole,
 | 
			
		||||
			*rbacv1alpha1.ClusterRoleBinding:
 | 
			
		||||
			return fmt.Errorf("only rbac.authorization.k8s.io/v1 is supported: not %T", t)
 | 
			
		||||
 | 
			
		||||
		default:
 | 
			
		||||
			klog.V(1).Infof("skipping %#v", info.Object.GetObjectKind())
 | 
			
		||||
			// skip ignored resources
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		return nil
 | 
			
		||||
	})
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func (o *ReconcileOptions) printResults(object runtime.Object,
 | 
			
		||||
	missingSubjects, extraSubjects []rbacv1.Subject,
 | 
			
		||||
	missingRules, extraRules []rbacv1.PolicyRule,
 | 
			
		||||
	operation reconciliation.ReconcileOperation,
 | 
			
		||||
	protected bool) {
 | 
			
		||||
 | 
			
		||||
	o.PrintObject(object, o.Out)
 | 
			
		||||
 | 
			
		||||
	caveat := ""
 | 
			
		||||
	if protected {
 | 
			
		||||
		caveat = ", but object opted out (rbac.authorization.kubernetes.io/autoupdate: false)"
 | 
			
		||||
	}
 | 
			
		||||
	switch operation {
 | 
			
		||||
	case reconciliation.ReconcileNone:
 | 
			
		||||
		return
 | 
			
		||||
	case reconciliation.ReconcileCreate:
 | 
			
		||||
		fmt.Fprintf(o.ErrOut, "\treconciliation required create%s\n", caveat)
 | 
			
		||||
	case reconciliation.ReconcileUpdate:
 | 
			
		||||
		fmt.Fprintf(o.ErrOut, "\treconciliation required update%s\n", caveat)
 | 
			
		||||
	case reconciliation.ReconcileRecreate:
 | 
			
		||||
		fmt.Fprintf(o.ErrOut, "\treconciliation required recreate%s\n", caveat)
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if len(missingSubjects) > 0 {
 | 
			
		||||
		fmt.Fprintf(o.ErrOut, "\tmissing subjects added:\n")
 | 
			
		||||
		for _, s := range missingSubjects {
 | 
			
		||||
			fmt.Fprintf(o.ErrOut, "\t\t%+v\n", s)
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	if o.RemoveExtraSubjects {
 | 
			
		||||
		if len(extraSubjects) > 0 {
 | 
			
		||||
			fmt.Fprintf(o.ErrOut, "\textra subjects removed:\n")
 | 
			
		||||
			for _, s := range extraSubjects {
 | 
			
		||||
				fmt.Fprintf(o.ErrOut, "\t\t%+v\n", s)
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	if len(missingRules) > 0 {
 | 
			
		||||
		fmt.Fprintf(o.ErrOut, "\tmissing rules added:\n")
 | 
			
		||||
		for _, r := range missingRules {
 | 
			
		||||
			fmt.Fprintf(o.ErrOut, "\t\t%+v\n", r)
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	if o.RemoveExtraPermissions {
 | 
			
		||||
		if len(extraRules) > 0 {
 | 
			
		||||
			fmt.Fprintf(o.ErrOut, "\textra rules removed:\n")
 | 
			
		||||
			for _, r := range extraRules {
 | 
			
		||||
				fmt.Fprintf(o.ErrOut, "\t\t%+v\n", r)
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func getClientSideDryRun(cmd *cobra.Command) bool {
 | 
			
		||||
	dryRunStrategy, err := cmdutil.GetDryRunStrategy(cmd)
 | 
			
		||||
	if err != nil {
 | 
			
		||||
		klog.Fatalf("error accessing --dry-run flag for command %s: %v", cmd.Name(), err)
 | 
			
		||||
	}
 | 
			
		||||
	if dryRunStrategy == cmdutil.DryRunServer {
 | 
			
		||||
		klog.Fatalf("--dry-run=server for command %s is not supported yet", cmd.Name())
 | 
			
		||||
	}
 | 
			
		||||
	return dryRunStrategy == cmdutil.DryRunClient
 | 
			
		||||
}
 | 
			
		||||
		Loading…
	
		Reference in New Issue