admin/kubesphere
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

update

Browse Source 
Signed-off-by: hongming <talonwan@yunify.com>
This commit is contained in:
hongming
2020-04-10 10:16:26 +08:00
parent 0e814bb5e4
commit a3d3c8e427
44 changed files with 2178 additions and 1283 deletions
Download Patch File Download Diff File Expand all files Collapse all files

93
pkg/apiserver/authorization/authorizerfactory/opa.go
View File

@@ -21,6 +21,9 @@ package authorizerfactory
import (
"context"
"github.com/open-policy-agent/opa/rego"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/klog"
iamv1alpha2 "kubesphere.io/kubesphere/pkg/apis/iam/v1alpha2"
"kubesphere.io/kubesphere/pkg/apiserver/authorization/authorizer"
"kubesphere.io/kubesphere/pkg/models/iam/am"
)
@@ -33,13 +36,16 @@ type opaAuthorizer struct {
func (o *opaAuthorizer) Authorize(attr authorizer.Attributes) (authorized authorizer.Decision, reason string, err error) {
// Make decisions based on the authorization policy of different levels of roles
platformRole, err := o.am.GetPlatformRole(attr.GetUser().GetName())
globalRole, err := o.am.GetRoleOfUserInTargetScope(iamv1alpha2.GlobalScope, "", attr.GetUser().GetName())
if err != nil {
if errors.IsNotFound(err) {
return authorizer.DecisionDeny, err.Error(), nil
}
return authorizer.DecisionDeny, "", err
}
// check platform role policy rules
if authorized, reason, err = makeDecision(platformRole, attr); authorized == authorizer.DecisionAllow {
if authorized, reason, err = o.makeDecision(globalRole, attr); authorized == authorizer.DecisionAllow {
return authorized, reason, err
}
@@ -48,13 +54,16 @@ func (o *opaAuthorizer) Authorize(attr authorizer.Attributes) (authorized author
return authorizer.DecisionDeny, "permission undefined", nil
}
clusterRole, err := o.am.GetClusterRole(attr.GetCluster(), attr.GetUser().GetName())
clusterRole, err := o.am.GetRoleOfUserInTargetScope(iamv1alpha2.ClusterScope, attr.GetCluster(), attr.GetUser().GetName())
if err != nil {
if errors.IsNotFound(err) {
return authorizer.DecisionDeny, err.Error(), nil
}
return authorizer.DecisionDeny, "", err
}
// check cluster role policy rules
if a, r, e := makeDecision(clusterRole, attr); a == authorizer.DecisionAllow {
if a, r, e := o.makeDecision(clusterRole, attr); a == authorizer.DecisionAllow {
return a, r, e
}
@@ -63,13 +72,16 @@ func (o *opaAuthorizer) Authorize(attr authorizer.Attributes) (authorized author
return authorizer.DecisionDeny, "permission undefined", nil
}
workspaceRole, err := o.am.GetWorkspaceRole(attr.GetWorkspace(), attr.GetUser().GetName())
workspaceRole, err := o.am.GetRoleOfUserInTargetScope(iamv1alpha2.WorkspaceScope, attr.GetWorkspace(), attr.GetUser().GetName())
if err != nil {
if errors.IsNotFound(err) {
return authorizer.DecisionDeny, err.Error(), nil
}
return authorizer.DecisionDeny, "", err
}
// check workspace role policy rules
if a, r, e := makeDecision(workspaceRole, attr); a == authorizer.DecisionAllow {
if a, r, e := o.makeDecision(workspaceRole, attr); a == authorizer.DecisionAllow {
return a, r, e
}
@@ -79,12 +91,15 @@ func (o *opaAuthorizer) Authorize(attr authorizer.Attributes) (authorized author
}
if attr.GetNamespace() != "" {
namespaceRole, err := o.am.GetNamespaceRole(attr.GetCluster(), attr.GetNamespace(), attr.GetUser().GetName())
namespaceRole, err := o.am.GetRoleOfUserInTargetScope(iamv1alpha2.NamespaceScope, attr.GetNamespace(), attr.GetUser().GetName())
if err != nil {
if errors.IsNotFound(err) {
return authorizer.DecisionDeny, err.Error(), nil
}
return authorizer.DecisionDeny, "", err
}
// check namespace role policy rules
if a, r, e := makeDecision(namespaceRole, attr); a == authorizer.DecisionAllow {
if a, r, e := o.makeDecision(namespaceRole, attr); a == authorizer.DecisionAllow {
return a, r, e
}
}
@@ -93,48 +108,36 @@ func (o *opaAuthorizer) Authorize(attr authorizer.Attributes) (authorized author
}
// Make decision base on role
func makeDecision(role am.Role, a authorizer.Attributes) (authorized authorizer.Decision, reason string, err error) {
func (o *opaAuthorizer) makeDecision(role *iamv1alpha2.Role, a authorizer.Attributes) (authorized authorizer.Decision, reason string, err error) {
// Call the rego.New function to create an object that can be prepared or evaluated
// After constructing a new rego.Rego object you can call PrepareForEval() to obtain an executable query
query, err := rego.New(rego.Query("data.authz.allow"), rego.Module("authz.rego", role.GetRego())).PrepareForEval(context.Background())
for _, ruleRef := range role.Rules {
rule, err := o.am.GetPolicyRule(ruleRef.Name)
if err != nil {
if errors.IsNotFound(err) {
continue
}
return authorizer.DecisionDeny, "", err
}
// Call the rego.New function to create an object that can be prepared or evaluated
// After constructing a new rego.Rego object you can call PrepareForEval() to obtain an executable query
query, err := rego.New(rego.Query("data.authz.allow"), rego.Module("authz.rego", rule.Rego)).PrepareForEval(context.Background())
if err != nil {
return authorizer.DecisionDeny, "", err
}
if err != nil {
klog.Errorf("rule syntax error:%s", err)
continue
}
// data example
//{
// "User": {
// "Name": "admin",
// "UID": "0",
// "Groups": [
// "admin"
// ],
// "Extra": null
// },
// "Verb": "list",
// "Cluster": "cluster1",
// "Workspace": "",
// "Namespace": "",
// "APIGroup": "",
// "APIVersion": "v1",
// "Resource": "nodes",
// "Subresource": "",
// "Name": "",
// "KubernetesRequest": true,
// "ResourceRequest": true,
// "Path": "/api/v1/nodes"
//}
// The policy decision is contained in the results returned by the Eval() call. You can inspect the decision and handle it accordingly.
results, err := query.Eval(context.Background(), rego.EvalInput(a))
// The policy decision is contained in the results returned by the Eval() call. You can inspect the decision and handle it accordingly.
results, err := query.Eval(context.Background(), rego.EvalInput(a))
if err != nil {
return authorizer.DecisionDeny, "", err
}
if err != nil {
klog.Errorf("rule syntax error:%s", err)
continue
}
if len(results) > 0 && results[0].Expressions[0].Value == true {
return authorizer.DecisionAllow, "", nil
if len(results) > 0 && results[0].Expressions[0].Value == true {
return authorizer.DecisionAllow, "", nil
}
}
return authorizer.DecisionDeny, "permission undefined", nil

205
pkg/apiserver/authorization/authorizerfactory/opa_test.go
View File

@@ -19,22 +19,44 @@
package authorizerfactory
import (
"fmt"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apiserver/pkg/authentication/user"
iamvealpha2 "kubesphere.io/kubesphere/pkg/apis/iam/v1alpha2"
"kubesphere.io/kubesphere/pkg/apiserver/authorization/authorizer"
"kubesphere.io/kubesphere/pkg/client/clientset/versioned/fake"
"kubesphere.io/kubesphere/pkg/client/informers/externalversions"
"kubesphere.io/kubesphere/pkg/models/iam/am"
"testing"
)
func TestPlatformRole(t *testing.T) {
platformRoles := map[string]am.FakeRole{"admin": {
Name: "admin",
Rego: "package authz\ndefault allow = true",
}, "anonymous": {
Name: "anonymous",
Rego: "package authz\ndefault allow = false",
}, "tom": {
Name: "tom",
Rego: `package authz
func prepare() (am.AccessManagementInterface, error) {
rules := []*iamvealpha2.PolicyRule{
{
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.PolicyRuleKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "always-allow",
},
Rego: "package authz\ndefault allow = true",
}, {
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.PolicyRuleKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String(),
},
ObjectMeta: metav1.ObjectMeta{
Name: "always-deny",
},
Rego: "package authz\ndefault allow = false",
}, {
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.PolicyRuleKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "manage-cluster1-resources",
},
Rego: `package authz
default allow = false
allow {
resources_in_cluster1
@@ -42,11 +64,168 @@ allow {
resources_in_cluster1 {
input.Cluster == "cluster1"
}`,
},
},
}
operator := am.NewFakeAMOperator()
operator.Prepare(platformRoles, nil, nil, nil)
roles := []*iamvealpha2.Role{
{
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.RoleKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "global-admin",
},
Target: iamvealpha2.Target{
Scope: iamvealpha2.GlobalScope,
Name: "",
},
Rules: []iamvealpha2.RuleRef{
{
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Kind: iamvealpha2.PolicyRuleKind,
Name: "always-allow",
},
},
},
{
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.RoleKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "anonymous",
},
Target: iamvealpha2.Target{
Scope: iamvealpha2.GlobalScope,
Name: "",
},
Rules: []iamvealpha2.RuleRef{
{
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Kind: iamvealpha2.PolicyRuleKind,
Name: "always-deny",
},
},
},
{
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.RoleKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "cluster1-admin",
},
Target: iamvealpha2.Target{
Scope: iamvealpha2.GlobalScope,
Name: "",
},
Rules: []iamvealpha2.RuleRef{
{
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Kind: iamvealpha2.PolicyRuleKind,
Name: "manage-cluster1-resources",
},
},
},
}
roleBindings := []*iamvealpha2.RoleBinding{
{
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.RoleBindingKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "global-admin",
},
Scope: iamvealpha2.GlobalScope,
RoleRef: iamvealpha2.RoleRef{
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Kind: iamvealpha2.RoleKind,
Name: "global-admin",
},
Subjects: []iamvealpha2.Subject{
{
Kind: iamvealpha2.UserKind,
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Name: "admin",
},
},
},
{
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.RoleBindingKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "anonymous",
},
Scope: iamvealpha2.GlobalScope,
RoleRef: iamvealpha2.RoleRef{
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Kind: iamvealpha2.RoleKind,
Name: "anonymous",
},
Subjects: []iamvealpha2.Subject{
{
Kind: iamvealpha2.UserKind,
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Name: user.Anonymous,
},
},
},
{
TypeMeta: metav1.TypeMeta{
Kind: iamvealpha2.RoleBindingKind,
APIVersion: iamvealpha2.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "cluster1-admin",
},
Scope: iamvealpha2.GlobalScope,
RoleRef: iamvealpha2.RoleRef{
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Kind: iamvealpha2.RoleKind,
Name: "cluster1-admin",
},
Subjects: []iamvealpha2.Subject{
{
Kind: iamvealpha2.UserKind,
APIGroup: iamvealpha2.SchemeGroupVersion.String(),
Name: "tom",
},
},
},
}
ksClient := fake.NewSimpleClientset()
informerFactory := externalversions.NewSharedInformerFactory(ksClient, 0)
for _, rule := range rules {
err := informerFactory.Iam().V1alpha2().PolicyRules().Informer().GetIndexer().Add(rule)
if err != nil {
return nil, fmt.Errorf("add rule:%s", err)
}
}
for _, role := range roles {
err := informerFactory.Iam().V1alpha2().Roles().Informer().GetIndexer().Add(role)
if err != nil {
return nil, fmt.Errorf("add role:%s", err)
}
}
for _, roleBinding := range roleBindings {
err := informerFactory.Iam().V1alpha2().RoleBindings().Informer().GetIndexer().Add(roleBinding)
if err != nil {
return nil, fmt.Errorf("add role binding:%s", err)
}
}
operator := am.NewAMOperator(ksClient, informerFactory)
return operator, nil
}
func TestGlobalRole(t *testing.T) {
operator, err := prepare()
if err != nil {
t.Fatal(err)
}
opa := NewOPAAuthorizer(operator)