mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 00:10:20 +00:00
122 lines
3.1 KiB
Go
122 lines
3.1 KiB
Go
/*
|
|
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 transformers
|
|
|
|
import (
|
|
"sigs.k8s.io/kustomize/pkg/gvk"
|
|
"sigs.k8s.io/kustomize/pkg/resmap"
|
|
"sigs.k8s.io/kustomize/pkg/transformers/config"
|
|
)
|
|
|
|
type namespaceTransformer struct {
|
|
namespace string
|
|
fieldSpecsToUse []config.FieldSpec
|
|
fieldSpecsToSkip []config.FieldSpec
|
|
}
|
|
|
|
var _ Transformer = &namespaceTransformer{}
|
|
|
|
// NewNamespaceTransformer construct a namespaceTransformer.
|
|
func NewNamespaceTransformer(ns string, cf []config.FieldSpec) Transformer {
|
|
if len(ns) == 0 {
|
|
return NewNoOpTransformer()
|
|
}
|
|
var skip []config.FieldSpec
|
|
for _, g := range gvk.ClusterLevelGvks() {
|
|
skip = append(skip, config.FieldSpec{Gvk: g})
|
|
}
|
|
return &namespaceTransformer{
|
|
namespace: ns,
|
|
fieldSpecsToUse: cf,
|
|
fieldSpecsToSkip: skip,
|
|
}
|
|
}
|
|
|
|
// Transform adds the namespace.
|
|
func (o *namespaceTransformer) Transform(m resmap.ResMap) error {
|
|
mf := resmap.ResMap{}
|
|
|
|
for id := range m {
|
|
found := false
|
|
for _, path := range o.fieldSpecsToSkip {
|
|
if id.Gvk().IsSelected(&path.Gvk) {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
mf[id] = m[id]
|
|
delete(m, id)
|
|
}
|
|
}
|
|
|
|
for id := range mf {
|
|
objMap := mf[id].Map()
|
|
for _, path := range o.fieldSpecsToUse {
|
|
if !id.Gvk().IsSelected(&path.Gvk) {
|
|
continue
|
|
}
|
|
|
|
err := mutateField(objMap, path.PathSlice(), path.CreateIfNotPresent, func(_ interface{}) (interface{}, error) {
|
|
return o.namespace, nil
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
newid := id.CopyWithNewNamespace(o.namespace)
|
|
m[newid] = mf[id]
|
|
}
|
|
|
|
}
|
|
o.updateClusterRoleBinding(m)
|
|
return nil
|
|
}
|
|
|
|
func (o *namespaceTransformer) updateClusterRoleBinding(m resmap.ResMap) {
|
|
saMap := map[string]bool{}
|
|
for id := range m {
|
|
if id.Gvk().Equals(gvk.Gvk{Version: "v1", Kind: "ServiceAccount"}) {
|
|
saMap[id.Name()] = true
|
|
}
|
|
}
|
|
|
|
for id := range m {
|
|
if id.Gvk().Kind != "ClusterRoleBinding" && id.Gvk().Kind != "RoleBinding" {
|
|
continue
|
|
}
|
|
objMap := m[id].Map()
|
|
subjects := objMap["subjects"].([]interface{})
|
|
for i := range subjects {
|
|
subject := subjects[i].(map[string]interface{})
|
|
kind, foundk := subject["kind"]
|
|
name, foundn := subject["name"]
|
|
if !foundk || !foundn || kind.(string) != "ServiceAccount" {
|
|
continue
|
|
}
|
|
// a ServiceAccount named “default” exists in every active namespace
|
|
if name.(string) == "default" || saMap[name.(string)] {
|
|
subject := subjects[i].(map[string]interface{})
|
|
mutateField(subject, []string{"namespace"}, true, func(_ interface{}) (interface{}, error) {
|
|
return o.namespace, nil
|
|
})
|
|
subjects[i] = subject
|
|
}
|
|
}
|
|
objMap["subjects"] = subjects
|
|
}
|
|
}
|