func (m *VirtualStorage) createRole(ctx kapi.Context, obj runtime.Object, allowEscalation bool) (*authorizationapi.Role, error) {
if err := rest.BeforeCreate(m.CreateStrategy, ctx, obj); err != nil {
return nil, err
}
role := obj.(*authorizationapi.Role)
if !allowEscalation {
if err := rulevalidation.ConfirmNoEscalation(ctx, m.RuleResolver, authorizationinterfaces.NewLocalRoleAdapter(role)); err != nil {
return nil, err
}
}
policy, err := m.EnsurePolicy(ctx)
if err != nil {
return nil, err
}
if _, exists := policy.Roles[role.Name]; exists {
return nil, kapierrors.NewAlreadyExists(authorizationapi.Resource("role"), role.Name)
}
role.ResourceVersion = policy.ResourceVersion
policy.Roles[role.Name] = role
policy.LastModified = unversioned.Now()
if err := m.PolicyStorage.UpdatePolicy(ctx, policy); err != nil {
return nil, err
}
return role, nil
}
func (m *VirtualStorage) updateRole(ctx kapi.Context, obj runtime.Object, allowEscalation bool) (*authorizationapi.Role, bool, error) {
role, ok := obj.(*authorizationapi.Role)
if !ok {
return nil, false, kapierrors.NewBadRequest(fmt.Sprintf("obj is not a role: %#v", obj))
}
old, err := m.Get(ctx, role.Name)
if err != nil {
return nil, false, err
}
if err := rest.BeforeUpdate(m.UpdateStrategy, ctx, obj, old); err != nil {
return nil, false, err
}
if !allowEscalation {
if err := rulevalidation.ConfirmNoEscalation(ctx, m.RuleResolver, authorizationinterfaces.NewLocalRoleAdapter(role)); err != nil {
return nil, false, err
}
}
policy, err := m.PolicyStorage.GetPolicy(ctx, authorizationapi.PolicyName)
if err != nil && kapierrors.IsNotFound(err) {
return nil, false, kapierrors.NewNotFound(authorizationapi.Resource("role"), role.Name)
}
if err != nil {
return nil, false, err
}
if _, exists := policy.Roles[role.Name]; !exists {
return nil, false, kapierrors.NewNotFound(authorizationapi.Resource("role"), role.Name)
}
role.ResourceVersion = policy.ResourceVersion
policy.Roles[role.Name] = role
policy.LastModified = unversioned.Now()
if err := m.PolicyStorage.UpdatePolicy(ctx, policy); err != nil {
return nil, false, err
}
return role, false, nil
}
func (a *DefaultRuleResolver) GetRole(roleBinding authorizationinterfaces.RoleBinding) (authorizationinterfaces.Role, error) {
namespace := roleBinding.RoleRef().Namespace
name := roleBinding.RoleRef().Name
if len(namespace) == 0 {
policy, err := a.clusterPolicyGetter.Get(authorizationapi.PolicyName)
if kapierror.IsNotFound(err) {
return nil, kapierror.NewNotFound(authorizationapi.Resource("role"), name)
}
if err != nil {
return nil, err
}
role, exists := policy.Roles[name]
if !exists {
return nil, kapierror.NewNotFound(authorizationapi.Resource("role"), name)
}
return authorizationinterfaces.NewClusterRoleAdapter(role), nil
}
if a.policyGetter == nil {
return nil, kapierror.NewNotFound(authorizationapi.Resource("role"), name)
}
policy, err := a.policyGetter.Policies(namespace).Get(authorizationapi.PolicyName)
if kapierror.IsNotFound(err) {
return nil, kapierror.NewNotFound(authorizationapi.Resource("role"), name)
}
if err != nil {
return nil, err
}
role, exists := policy.Roles[name]
if !exists {
return nil, kapierror.NewNotFound(authorizationapi.Resource("role"), name)
}
return authorizationinterfaces.NewLocalRoleAdapter(role), nil
}
func (m *VirtualStorage) updateRole(ctx kapi.Context, name string, objInfo rest.UpdatedObjectInfo, allowEscalation bool) (*authorizationapi.Role, bool, error) {
var updatedRole *authorizationapi.Role
var roleConflicted = false
// Retry if the policy update hits a conflict
if err := kclient.RetryOnConflict(kclient.DefaultRetry, func() error {
policy, err := m.PolicyStorage.GetPolicy(ctx, authorizationapi.PolicyName)
if kapierrors.IsNotFound(err) {
return kapierrors.NewNotFound(m.Resource, name)
}
if err != nil {
return err
}
oldRole, exists := policy.Roles[name]
if !exists {
return kapierrors.NewNotFound(m.Resource, name)
}
obj, err := objInfo.UpdatedObject(ctx, oldRole)
if err != nil {
return err
}
role, ok := obj.(*authorizationapi.Role)
if !ok {
return kapierrors.NewBadRequest(fmt.Sprintf("obj is not a role: %#v", obj))
}
if len(role.ResourceVersion) == 0 && m.UpdateStrategy.AllowUnconditionalUpdate() {
role.ResourceVersion = oldRole.ResourceVersion
}
if err := rest.BeforeUpdate(m.UpdateStrategy, ctx, obj, oldRole); err != nil {
return err
}
if !allowEscalation {
if err := rulevalidation.ConfirmNoEscalation(ctx, m.Resource, role.Name, m.RuleResolver, m.CachedRuleResolver, authorizationinterfaces.NewLocalRoleAdapter(role)); err != nil {
return err
}
}
// conflict detection
if role.ResourceVersion != oldRole.ResourceVersion {
// mark as a conflict err, but return an untyped error to escape the retry
roleConflicted = true
return errors.New(registry.OptimisticLockErrorMsg)
}
// non-mutating change
if kapi.Semantic.DeepEqual(oldRole, role) {
updatedRole = role
return nil
}
role.ResourceVersion = policy.ResourceVersion
policy.Roles[role.Name] = role
policy.LastModified = unversioned.Now()
if err := m.PolicyStorage.UpdatePolicy(ctx, policy); err != nil {
return err
}
updatedRole = role
return nil
}); err != nil {
if roleConflicted {
// construct the typed conflict error
return nil, false, kapierrors.NewConflict(authorizationapi.Resource("name"), name, err)
}
return nil, false, err
}
return updatedRole, false, nil
}
func (m *VirtualStorage) createRole(ctx kapi.Context, obj runtime.Object, allowEscalation bool) (*authorizationapi.Role, error) {
// Copy object before passing to BeforeCreate, since it mutates
objCopy, err := kapi.Scheme.DeepCopy(obj)
if err != nil {
return nil, err
}
obj = objCopy.(runtime.Object)
if err := rest.BeforeCreate(m.CreateStrategy, ctx, obj); err != nil {
return nil, err
}
role := obj.(*authorizationapi.Role)
if !allowEscalation {
if err := rulevalidation.ConfirmNoEscalation(ctx, m.Resource, role.Name, m.RuleResolver, m.CachedRuleResolver, authorizationinterfaces.NewLocalRoleAdapter(role)); err != nil {
return nil, err
}
}
if err := kclient.RetryOnConflict(kclient.DefaultRetry, func() error {
policy, err := m.EnsurePolicy(ctx)
if err != nil {
return err
}
if _, exists := policy.Roles[role.Name]; exists {
return kapierrors.NewAlreadyExists(m.Resource, role.Name)
}
role.ResourceVersion = policy.ResourceVersion
policy.Roles[role.Name] = role
policy.LastModified = unversioned.Now()
return m.PolicyStorage.UpdatePolicy(ctx, policy)
}); err != nil {
return nil, err
}
return role, nil
}