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Moved managed fields validation to server-side apply

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This commit is contained in:
Josh Samuels 2019-08-27 23:19:56 -04:00
parent d13420f751
commit d61b833161
2 changed files with 15 additions and 47 deletions
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11
staging/src/k8s.io/apiserver/pkg/endpoints/handlers/fieldmanager/fieldmanager.go
View File

@ -149,11 +149,9 @@ func (f *FieldManager) Update(liveObj, newObj runtime.Object, manager string) (r
// Apply is used when server-side apply is called, as it merges the
// object and update the managed fields.
func (f *FieldManager) Apply(liveObj runtime.Object, patch []byte, fieldManager string, force bool) (runtime.Object, error) {
// If the object doesn't have metadata or managed fields is not empty, apply isn't allowed.
if objMeta, err := meta.Accessor(liveObj); err != nil {
// If the object doesn't have metadata, apply isn't allowed.
if _, err := meta.Accessor(liveObj); err != nil {
return nil, fmt.Errorf("couldn't get accessor: %v", err)
} else if objMeta.GetManagedFields() != nil && len(objMeta.GetManagedFields()) != 0 {
return nil, fmt.Errorf("apply is not allowed with managed fields set but was: %v", objMeta.GetManagedFields())
}
managed, err := internal.DecodeObjectManagedFields(liveObj)
@ -166,6 +164,11 @@ func (f *FieldManager) Apply(liveObj runtime.Object, patch []byte, fieldManager
if err := yaml.Unmarshal(patch, &patchObj.Object); err != nil {
return nil, fmt.Errorf("error decoding YAML: %v", err)
}
if patchObj.GetManagedFields() != nil {
return nil, fmt.Errorf("managed fields must be nil but was %v", patchObj.GetManagedFields())
}
if patchObj.GetAPIVersion() != f.groupVersion.String() {
return nil,
errors.NewBadRequest(

51
staging/src/k8s.io/apiserver/pkg/endpoints/handlers/fieldmanager/fieldmanager_test.go
View File

@ -25,7 +25,6 @@ import (
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
@ -444,23 +443,15 @@ func BenchmarkRepeatedUpdate(b *testing.B) {
func TestApplyFailsWithManagedFields(t *testing.T) {
f := NewTestFieldManager()
obj := &corev1.Pod{
ObjectMeta: metav1.ObjectMeta{
ManagedFields: []metav1.ManagedFieldsEntry{
{
Manager: "test",
},
},
},
}
_, err := f.Apply(obj, []byte(`{
_, err := f.Apply(&corev1.Pod{}, []byte(`{
"apiVersion": "apps/v1",
"kind": "Pod",
"metadata": {
"labels": {
"a": "b"
},
"managedFields": [
{
"manager": "test",
}
]
}
}`), "fieldmanager_test", false)
@ -469,36 +460,10 @@ func TestApplyFailsWithManagedFields(t *testing.T) {
}
}
func TestApplySuccessWithEmptyManagedFields(t *testing.T) {
func TestApplySuccessWithNoManagedFields(t *testing.T) {
f := NewTestFieldManager()
obj := &corev1.Pod{
ObjectMeta: metav1.ObjectMeta{
ManagedFields: []metav1.ManagedFieldsEntry{},
},
}
_, err := f.Apply(obj, []byte(`{
"apiVersion": "apps/v1",
"kind": "Pod",
"metadata": {
"labels": {
"a": "b"
},
}
}`), "fieldmanager_test", false)
if err != nil {
t.Fatalf("failed to apply object: %v", err)
}
}
func TestApplySuccessWithNilManagedFields(t *testing.T) {
f := NewTestFieldManager()
obj := &corev1.Pod{}
_, err := f.Apply(obj, []byte(`{
_, err := f.Apply(&corev1.Pod{}, []byte(`{
"apiVersion": "apps/v1",
"kind": "Pod",
"metadata": {