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fix: multi-cluster proxy authentication

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Signed-off-by: hongming <talonwan@yunify.com>
This commit is contained in:
hongming
2020-06-19 13:30:40 +08:00
parent 0493a352dc
commit ee741858b6
7 changed files with 163 additions and 37 deletions
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60
pkg/apiserver/authorization/authorizerfactory/rbac.go
View File

@@ -230,37 +230,6 @@ func (r *RBACAuthorizer) visitRulesFor(requestAttributes authorizer.Attributes,
}
}
if requestAttributes.GetResourceScope() == request.ClusterScope || requestAttributes.GetResourceScope() == request.NamespaceScope {
if clusterRoleBindings, err := r.am.ListClusterRoleBindings(""); err != nil {
if !visitor(nil, "", nil, err) {
return
}
} else {
sourceDescriber := &clusterRoleBindingDescriber{}
for _, clusterRoleBinding := range clusterRoleBindings {
subjectIndex, applies := appliesTo(requestAttributes.GetUser(), clusterRoleBinding.Subjects, "")
if !applies {
continue
}
regoPolicy, rules, err := r.am.GetRoleReferenceRules(clusterRoleBinding.RoleRef, "")
if err != nil {
visitor(nil, "", nil, err)
continue
}
sourceDescriber.binding = clusterRoleBinding
sourceDescriber.subject = &clusterRoleBinding.Subjects[subjectIndex]
if !visitor(sourceDescriber, regoPolicy, nil, nil) {
return
}
for i := range rules {
if !visitor(sourceDescriber, "", &rules[i], nil) {
return
}
}
}
}
}
if requestAttributes.GetResourceScope() == request.WorkspaceScope || requestAttributes.GetResourceScope() == request.NamespaceScope {
var workspace string
@@ -338,6 +307,35 @@ func (r *RBACAuthorizer) visitRulesFor(requestAttributes authorizer.Attributes,
}
}
}
if clusterRoleBindings, err := r.am.ListClusterRoleBindings(""); err != nil {
if !visitor(nil, "", nil, err) {
return
}
} else {
sourceDescriber := &clusterRoleBindingDescriber{}
for _, clusterRoleBinding := range clusterRoleBindings {
subjectIndex, applies := appliesTo(requestAttributes.GetUser(), clusterRoleBinding.Subjects, "")
if !applies {
continue
}
regoPolicy, rules, err := r.am.GetRoleReferenceRules(clusterRoleBinding.RoleRef, "")
if err != nil {
visitor(nil, "", nil, err)
continue
}
sourceDescriber.binding = clusterRoleBinding
sourceDescriber.subject = &clusterRoleBinding.Subjects[subjectIndex]
if !visitor(sourceDescriber, regoPolicy, nil, nil) {
return
}
for i := range rules {
if !visitor(sourceDescriber, "", &rules[i], nil) {
return
}
}
}
}
}
// appliesTo returns whether any of the bindingSubjects applies to the specified subject,

17
pkg/apiserver/authorization/proxy/doc.go Normal file
View File

@@ -0,0 +1,17 @@
/*
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 proxy

33
pkg/apiserver/authorization/proxy/proxy.go Normal file
View File

@@ -0,0 +1,33 @@
/*
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 proxy
import (
"kubesphere.io/kubesphere/pkg/apiserver/authorization/authorizer"
)
// NewAuthorizer returns an authorizer which accepts cluster proxy request.
// If multi-cluster mode is enabled, request should authorize by target apiserver.
func NewAuthorizer(multiClusterEnabled bool) authorizer.Authorizer {
return authorizer.AuthorizerFunc(func(a authorizer.Attributes) (authorizer.Decision, string, error) {
// in multi cluster mode, the request will be dispatch.
if multiClusterEnabled && a.GetCluster() != "" {
return authorizer.DecisionAllow, "", nil
}
return authorizer.DecisionNoOpinion, "", nil
})
}

80
pkg/apiserver/authorization/proxy/proxy_test.go Normal file
View File

@@ -0,0 +1,80 @@
/*
Copyright 2018 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 proxy
import (
"kubesphere.io/kubesphere/pkg/apiserver/authorization/authorizer"
"testing"
)
func TestNewAuthorizer(t *testing.T) {
tests := []struct {
multiClusterEnabled bool
request authorizer.AttributesRecord
expectResult authorizer.Decision
}{
{
multiClusterEnabled: false,
request: authorizer.AttributesRecord{
Workspace: "ws",
Namespace: "ns",
KubernetesRequest: false,
ResourceRequest: false,
},
expectResult: authorizer.DecisionNoOpinion,
},
{
multiClusterEnabled: false,
request: authorizer.AttributesRecord{
Cluster: "cluster1",
Workspace: "ws",
Namespace: "ns",
KubernetesRequest: false,
ResourceRequest: false,
},
expectResult: authorizer.DecisionNoOpinion,
},
{
multiClusterEnabled: true,
request: authorizer.AttributesRecord{
Cluster: "cluster1",
Workspace: "ws",
Namespace: "ns",
KubernetesRequest: false,
ResourceRequest: false,
},
expectResult: authorizer.DecisionAllow,
},
{
multiClusterEnabled: true,
request: authorizer.AttributesRecord{
Workspace: "ws",
Namespace: "ns",
KubernetesRequest: false,
ResourceRequest: false,
},
expectResult: authorizer.DecisionNoOpinion,
},
}
for i, test := range tests {
a := NewAuthorizer(test.multiClusterEnabled)
result, _, _ := a.Authorize(test.request)
if result != test.expectResult {
t.Errorf("case %d, got %#v, expected %#v", i, result, test.expectResult)
}
}
}