kubernetes rbac_test 源码
kubernetes rbac_test 代码
文件路径：/plugin/pkg/auth/authorizer/rbac/rbac_test.go
/*
Copyright 2016 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 rbac
import (
"context"
"fmt"
"strings"
"testing"
rbacv1 "k8s.io/api/rbac/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apiserver/pkg/authentication/user"
"k8s.io/apiserver/pkg/authorization/authorizer"
rbacv1helpers "k8s.io/kubernetes/pkg/apis/rbac/v1"
rbacregistryvalidation "k8s.io/kubernetes/pkg/registry/rbac/validation"
"k8s.io/kubernetes/plugin/pkg/auth/authorizer/rbac/bootstrappolicy"
)
func newRule(verbs, apiGroups, resources, nonResourceURLs string) rbacv1.PolicyRule {
return rbacv1.PolicyRule{
Verbs: strings.Split(verbs, ","),
APIGroups: strings.Split(apiGroups, ","),
Resources: strings.Split(resources, ","),
NonResourceURLs: strings.Split(nonResourceURLs, ","),
}
}
func newRole(name, namespace string, rules ...rbacv1.PolicyRule) *rbacv1.Role {
return &rbacv1.Role{ObjectMeta: metav1.ObjectMeta{Namespace: namespace, Name: name}, Rules: rules}
}
func newClusterRole(name string, rules ...rbacv1.PolicyRule) *rbacv1.ClusterRole {
return &rbacv1.ClusterRole{ObjectMeta: metav1.ObjectMeta{Name: name}, Rules: rules}
}
const (
bindToRole uint16 = 0x0
bindToClusterRole uint16 = 0x1
)
func newClusterRoleBinding(roleName string, subjects ...string) *rbacv1.ClusterRoleBinding {
r := &rbacv1.ClusterRoleBinding{
ObjectMeta: metav1.ObjectMeta{},
RoleRef: rbacv1.RoleRef{
APIGroup: rbacv1.GroupName,
Kind: "ClusterRole", // ClusterRoleBindings can only refer to ClusterRole
Name: roleName,
},
}
r.Subjects = make([]rbacv1.Subject, len(subjects))
for i, subject := range subjects {
split := strings.SplitN(subject, ":", 2)
r.Subjects[i].Kind, r.Subjects[i].Name = split[0], split[1]
switch r.Subjects[i].Kind {
case rbacv1.ServiceAccountKind:
r.Subjects[i].APIGroup = ""
case rbacv1.UserKind, rbacv1.GroupKind:
r.Subjects[i].APIGroup = rbacv1.GroupName
default:
panic(fmt.Errorf("invalid kind %s", r.Subjects[i].Kind))
}
}
return r
}
func newRoleBinding(namespace, roleName string, bindType uint16, subjects ...string) *rbacv1.RoleBinding {
r := &rbacv1.RoleBinding{ObjectMeta: metav1.ObjectMeta{Namespace: namespace}}
switch bindType {
case bindToRole:
r.RoleRef = rbacv1.RoleRef{APIGroup: rbacv1.GroupName, Kind: "Role", Name: roleName}
case bindToClusterRole:
r.RoleRef = rbacv1.RoleRef{APIGroup: rbacv1.GroupName, Kind: "ClusterRole", Name: roleName}
}
r.Subjects = make([]rbacv1.Subject, len(subjects))
for i, subject := range subjects {
split := strings.SplitN(subject, ":", 2)
r.Subjects[i].Kind, r.Subjects[i].Name = split[0], split[1]
switch r.Subjects[i].Kind {
case rbacv1.ServiceAccountKind:
r.Subjects[i].APIGroup = ""
case rbacv1.UserKind, rbacv1.GroupKind:
r.Subjects[i].APIGroup = rbacv1.GroupName
default:
panic(fmt.Errorf("invalid kind %s", r.Subjects[i].Kind))
}
}
return r
}
type defaultAttributes struct {
user string
groups string
verb string
resource string
subresource string
namespace string
apiGroup string
}
func (d *defaultAttributes) String() string {
return fmt.Sprintf("user=(%s), groups=(%s), verb=(%s), resource=(%s), namespace=(%s), apiGroup=(%s)",
d.user, strings.Split(d.groups, ","), d.verb, d.resource, d.namespace, d.apiGroup)
}
func (d *defaultAttributes) GetUser() user.Info {
return &user.DefaultInfo{Name: d.user, Groups: strings.Split(d.groups, ",")}
}
func (d *defaultAttributes) GetVerb() string { return d.verb }
func (d *defaultAttributes) IsReadOnly() bool { return d.verb == "get" || d.verb == "watch" }
func (d *defaultAttributes) GetNamespace() string { return d.namespace }
func (d *defaultAttributes) GetResource() string { return d.resource }
func (d *defaultAttributes) GetSubresource() string { return d.subresource }
func (d *defaultAttributes) GetName() string { return "" }
func (d *defaultAttributes) GetAPIGroup() string { return d.apiGroup }
func (d *defaultAttributes) GetAPIVersion() string { return "" }
func (d *defaultAttributes) IsResourceRequest() bool { return true }
func (d *defaultAttributes) GetPath() string { return "" }
func TestAuthorizer(t *testing.T) {
tests := []struct {
roles []*rbacv1.Role
roleBindings []*rbacv1.RoleBinding
clusterRoles []*rbacv1.ClusterRole
clusterRoleBindings []*rbacv1.ClusterRoleBinding
shouldPass []authorizer.Attributes
shouldFail []authorizer.Attributes
}{
{
clusterRoles: []*rbacv1.ClusterRole{
newClusterRole("admin", newRule("*", "*", "*", "*")),
},
roleBindings: []*rbacv1.RoleBinding{
newRoleBinding("ns1", "admin", bindToClusterRole, "User:admin", "Group:admins"),
},
shouldPass: []authorizer.Attributes{
&defaultAttributes{"admin", "", "get", "Pods", "", "ns1", ""},
&defaultAttributes{"admin", "", "watch", "Pods", "", "ns1", ""},
&defaultAttributes{"admin", "group1", "watch", "Foobar", "", "ns1", ""},
&defaultAttributes{"joe", "admins", "watch", "Foobar", "", "ns1", ""},
&defaultAttributes{"joe", "group1,admins", "watch", "Foobar", "", "ns1", ""},
},
shouldFail: []authorizer.Attributes{
&defaultAttributes{"admin", "", "GET", "Pods", "", "ns2", ""},
&defaultAttributes{"admin", "", "GET", "Nodes", "", "", ""},
&defaultAttributes{"admin", "admins", "GET", "Pods", "", "ns2", ""},
&defaultAttributes{"admin", "admins", "GET", "Nodes", "", "", ""},
},
},
{
// Non-resource-url tests
clusterRoles: []*rbacv1.ClusterRole{
newClusterRole("non-resource-url-getter", newRule("get", "", "", "/apis")),
newClusterRole("non-resource-url", newRule("*", "", "", "/apis")),
newClusterRole("non-resource-url-prefix", newRule("get", "", "", "/apis/*")),
},
clusterRoleBindings: []*rbacv1.ClusterRoleBinding{
newClusterRoleBinding("non-resource-url-getter", "User:foo", "Group:bar"),
newClusterRoleBinding("non-resource-url", "User:admin", "Group:admin"),
newClusterRoleBinding("non-resource-url-prefix", "User:prefixed", "Group:prefixed"),
},
shouldPass: []authorizer.Attributes{
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "watch", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "watch", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "prefixed"}, Verb: "get", Path: "/apis/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"prefixed"}}, Verb: "get", Path: "/apis/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "prefixed"}, Verb: "get", Path: "/apis/v1/foobar"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"prefixed"}}, Verb: "get", Path: "/apis/v1/foorbar"},
},
shouldFail: []authorizer.Attributes{
// wrong verb
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "watch", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "watch", Path: "/apis"},
// wrong path
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "get", Path: "/api/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "get", Path: "/api/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "get", Path: "/api/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "get", Path: "/api/v1"},
// not covered by prefix
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "prefixed"}, Verb: "get", Path: "/api/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"prefixed"}}, Verb: "get", Path: "/api/v1"},
},
},
{
// test subresource resolution
clusterRoles: []*rbacv1.ClusterRole{
newClusterRole("admin", newRule("*", "*", "pods", "*")),
},
roleBindings: []*rbacv1.RoleBinding{
newRoleBinding("ns1", "admin", bindToClusterRole, "User:admin", "Group:admins"),
},
shouldPass: []authorizer.Attributes{
&defaultAttributes{"admin", "", "get", "pods", "", "ns1", ""},
},
shouldFail: []authorizer.Attributes{
&defaultAttributes{"admin", "", "get", "pods", "status", "ns1", ""},
},
},
{
// test subresource resolution
clusterRoles: []*rbacv1.ClusterRole{
newClusterRole("admin",
newRule("*", "*", "pods/status", "*"),
newRule("*", "*", "*/scale", "*"),
),
},
roleBindings: []*rbacv1.RoleBinding{
newRoleBinding("ns1", "admin", bindToClusterRole, "User:admin", "Group:admins"),
},
shouldPass: []authorizer.Attributes{
&defaultAttributes{"admin", "", "get", "pods", "status", "ns1", ""},
&defaultAttributes{"admin", "", "get", "pods", "scale", "ns1", ""},
&defaultAttributes{"admin", "", "get", "deployments", "scale", "ns1", ""},
&defaultAttributes{"admin", "", "get", "anything", "scale", "ns1", ""},
},
shouldFail: []authorizer.Attributes{
&defaultAttributes{"admin", "", "get", "pods", "", "ns1", ""},
},
},
}
for i, tt := range tests {
ruleResolver, _ := rbacregistryvalidation.NewTestRuleResolver(tt.roles, tt.roleBindings, tt.clusterRoles, tt.clusterRoleBindings)
a := RBACAuthorizer{ruleResolver}
for _, attr := range tt.shouldPass {
if decision, _, _ := a.Authorize(context.Background(), attr); decision != authorizer.DecisionAllow {
t.Errorf("case %d: incorrectly restricted %s", i, attr)
}
}
for _, attr := range tt.shouldFail {
if decision, _, _ := a.Authorize(context.Background(), attr); decision == authorizer.DecisionAllow {
t.Errorf("case %d: incorrectly passed %s", i, attr)
}
}
}
}
func TestRuleMatches(t *testing.T) {
tests := []struct {
name string
rule rbacv1.PolicyRule
requestsToExpected map[authorizer.AttributesRecord]bool
}{
{
name: "star verb, exact match other",
rule: rbacv1helpers.NewRule("*").Groups("group1").Resources("resource1").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
resourceRequest("verb1").Group("group2").Resource("resource1").New(): false,
resourceRequest("verb1").Group("group1").Resource("resource2").New(): false,
resourceRequest("verb1").Group("group2").Resource("resource2").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource1").New(): true,
resourceRequest("verb2").Group("group2").Resource("resource1").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource2").New(): false,
resourceRequest("verb2").Group("group2").Resource("resource2").New(): false,
},
},
{
name: "star group, exact match other",
rule: rbacv1helpers.NewRule("verb1").Groups("*").Resources("resource1").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
resourceRequest("verb1").Group("group2").Resource("resource1").New(): true,
resourceRequest("verb1").Group("group1").Resource("resource2").New(): false,
resourceRequest("verb1").Group("group2").Resource("resource2").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource1").New(): false,
resourceRequest("verb2").Group("group2").Resource("resource1").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource2").New(): false,
resourceRequest("verb2").Group("group2").Resource("resource2").New(): false,
},
},
{
name: "star resource, exact match other",
rule: rbacv1helpers.NewRule("verb1").Groups("group1").Resources("*").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
resourceRequest("verb1").Group("group2").Resource("resource1").New(): false,
resourceRequest("verb1").Group("group1").Resource("resource2").New(): true,
resourceRequest("verb1").Group("group2").Resource("resource2").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource1").New(): false,
resourceRequest("verb2").Group("group2").Resource("resource1").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource2").New(): false,
resourceRequest("verb2").Group("group2").Resource("resource2").New(): false,
},
},
{
name: "tuple expansion",
rule: rbacv1helpers.NewRule("verb1", "verb2").Groups("group1", "group2").Resources("resource1", "resource2").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
resourceRequest("verb1").Group("group2").Resource("resource1").New(): true,
resourceRequest("verb1").Group("group1").Resource("resource2").New(): true,
resourceRequest("verb1").Group("group2").Resource("resource2").New(): true,
resourceRequest("verb2").Group("group1").Resource("resource1").New(): true,
resourceRequest("verb2").Group("group2").Resource("resource1").New(): true,
resourceRequest("verb2").Group("group1").Resource("resource2").New(): true,
resourceRequest("verb2").Group("group2").Resource("resource2").New(): true,
},
},
{
name: "subresource expansion",
rule: rbacv1helpers.NewRule("*").Groups("*").Resources("resource1/subresource1").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
resourceRequest("verb1").Group("group1").Resource("resource1").Subresource("subresource1").New(): true,
resourceRequest("verb1").Group("group2").Resource("resource1").Subresource("subresource2").New(): false,
resourceRequest("verb1").Group("group1").Resource("resource2").Subresource("subresource1").New(): false,
resourceRequest("verb1").Group("group2").Resource("resource2").Subresource("subresource1").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource1").Subresource("subresource1").New(): true,
resourceRequest("verb2").Group("group2").Resource("resource1").Subresource("subresource2").New(): false,
resourceRequest("verb2").Group("group1").Resource("resource2").Subresource("subresource1").New(): false,
resourceRequest("verb2").Group("group2").Resource("resource2").Subresource("subresource1").New(): false,
},
},
{
name: "star nonresource, exact match other",
rule: rbacv1helpers.NewRule("verb1").URLs("*").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
nonresourceRequest("verb1").URL("/foo").New(): true,
nonresourceRequest("verb1").URL("/foo/bar").New(): true,
nonresourceRequest("verb1").URL("/foo/baz").New(): true,
nonresourceRequest("verb1").URL("/foo/bar/one").New(): true,
nonresourceRequest("verb1").URL("/foo/baz/one").New(): true,
nonresourceRequest("verb2").URL("/foo").New(): false,
nonresourceRequest("verb2").URL("/foo/bar").New(): false,
nonresourceRequest("verb2").URL("/foo/baz").New(): false,
nonresourceRequest("verb2").URL("/foo/bar/one").New(): false,
nonresourceRequest("verb2").URL("/foo/baz/one").New(): false,
},
},
{
name: "star nonresource subpath",
rule: rbacv1helpers.NewRule("verb1").URLs("/foo/*").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
nonresourceRequest("verb1").URL("/foo").New(): false,
nonresourceRequest("verb1").URL("/foo/bar").New(): true,
nonresourceRequest("verb1").URL("/foo/baz").New(): true,
nonresourceRequest("verb1").URL("/foo/bar/one").New(): true,
nonresourceRequest("verb1").URL("/foo/baz/one").New(): true,
nonresourceRequest("verb1").URL("/notfoo").New(): false,
nonresourceRequest("verb1").URL("/notfoo/bar").New(): false,
nonresourceRequest("verb1").URL("/notfoo/baz").New(): false,
nonresourceRequest("verb1").URL("/notfoo/bar/one").New(): false,
nonresourceRequest("verb1").URL("/notfoo/baz/one").New(): false,
},
},
{
name: "star verb, exact nonresource",
rule: rbacv1helpers.NewRule("*").URLs("/foo", "/foo/bar/one").RuleOrDie(),
requestsToExpected: map[authorizer.AttributesRecord]bool{
nonresourceRequest("verb1").URL("/foo").New(): true,
nonresourceRequest("verb1").URL("/foo/bar").New(): false,
nonresourceRequest("verb1").URL("/foo/baz").New(): false,
nonresourceRequest("verb1").URL("/foo/bar/one").New(): true,
nonresourceRequest("verb1").URL("/foo/baz/one").New(): false,
nonresourceRequest("verb2").URL("/foo").New(): true,
nonresourceRequest("verb2").URL("/foo/bar").New(): false,
nonresourceRequest("verb2").URL("/foo/baz").New(): false,
nonresourceRequest("verb2").URL("/foo/bar/one").New(): true,
nonresourceRequest("verb2").URL("/foo/baz/one").New(): false,
},
},
}
for _, tc := range tests {
for request, expected := range tc.requestsToExpected {
if e, a := expected, RuleAllows(request, &tc.rule); e != a {
t.Errorf("%q: expected %v, got %v for %v", tc.name, e, a, request)
}
}
}
}
type requestAttributeBuilder struct {
request authorizer.AttributesRecord
}
func resourceRequest(verb string) *requestAttributeBuilder {
return &requestAttributeBuilder{
request: authorizer.AttributesRecord{ResourceRequest: true, Verb: verb},
}
}
func nonresourceRequest(verb string) *requestAttributeBuilder {
return &requestAttributeBuilder{
request: authorizer.AttributesRecord{ResourceRequest: false, Verb: verb},
}
}
func (r *requestAttributeBuilder) Group(group string) *requestAttributeBuilder {
r.request.APIGroup = group
return r
}
func (r *requestAttributeBuilder) Resource(resource string) *requestAttributeBuilder {
r.request.Resource = resource
return r
}
func (r *requestAttributeBuilder) Subresource(subresource string) *requestAttributeBuilder {
r.request.Subresource = subresource
return r
}
func (r *requestAttributeBuilder) Name(name string) *requestAttributeBuilder {
r.request.Name = name
return r
}
func (r *requestAttributeBuilder) URL(url string) *requestAttributeBuilder {
r.request.Path = url
return r
}
func (r *requestAttributeBuilder) New() authorizer.AttributesRecord {
return r.request
}
func BenchmarkAuthorize(b *testing.B) {
bootstrapRoles := []rbacv1.ClusterRole{}
bootstrapRoles = append(bootstrapRoles, bootstrappolicy.ControllerRoles()...)
bootstrapRoles = append(bootstrapRoles, bootstrappolicy.ClusterRoles()...)
bootstrapBindings := []rbacv1.ClusterRoleBinding{}
bootstrapBindings = append(bootstrapBindings, bootstrappolicy.ClusterRoleBindings()...)
bootstrapBindings = append(bootstrapBindings, bootstrappolicy.ControllerRoleBindings()...)
clusterRoles := []*rbacv1.ClusterRole{}
for i := range bootstrapRoles {
clusterRoles = append(clusterRoles, &bootstrapRoles[i])
}
clusterRoleBindings := []*rbacv1.ClusterRoleBinding{}
for i := range bootstrapBindings {
clusterRoleBindings = append(clusterRoleBindings, &bootstrapBindings[i])
}
_, resolver := rbacregistryvalidation.NewTestRuleResolver(nil, nil, clusterRoles, clusterRoleBindings)
authz := New(resolver, resolver, resolver, resolver)
nodeUser := &user.DefaultInfo{Name: "system:node:node1", Groups: []string{"system:nodes", "system:authenticated"}}
requests := []struct {
name string
attrs authorizer.Attributes
}{
{
"allow list pods",
authorizer.AttributesRecord{
ResourceRequest: true,
User: nodeUser,
Verb: "list",
Resource: "pods",
Subresource: "",
Name: "",
Namespace: "",
APIGroup: "",
APIVersion: "v1",
},
},
{
"allow update pods/status",
authorizer.AttributesRecord{
ResourceRequest: true,
User: nodeUser,
Verb: "update",
Resource: "pods",
Subresource: "status",
Name: "mypods",
Namespace: "myns",
APIGroup: "",
APIVersion: "v1",
},
},
{
"forbid educate dolphins",
authorizer.AttributesRecord{
ResourceRequest: true,
User: nodeUser,
Verb: "educate",
Resource: "dolphins",
Subresource: "",
Name: "",
Namespace: "",
APIGroup: "",
APIVersion: "v1",
},
},
}
b.ResetTimer()
for _, request := range requests {
b.Run(request.name, func(b *testing.B) {
for i := 0; i < b.N; i++ {
authz.Authorize(context.Background(), request.attrs)
}
})
}
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦