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Prune explicit nulls from client-side apply create 

Kubernetes-commit: 8483b9c08763c8f615216e95efdde46d5c7f6ef7
This commit is contained in:
Jordan Liggitt 2024-05-29 01:14:18 -04:00 committed by Kubernetes Publisher
parent e91710120d
commit 81ad0ffc39
1 changed files with 33 additions and 4 deletions
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37
pkg/cmd/apply/apply.go
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@ -43,7 +43,7 @@ import (
"k8s.io/client-go/util/csaupgrade"
"k8s.io/component-base/version"
"k8s.io/klog/v2"
"k8s.io/kubectl/pkg/cmd/delete"
cmddelete "k8s.io/kubectl/pkg/cmd/delete"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/scheme"
"k8s.io/kubectl/pkg/util"
@ -61,7 +61,7 @@ type ApplyFlags struct {
RecordFlags *genericclioptions.RecordFlags
PrintFlags *genericclioptions.PrintFlags
DeleteFlags *delete.DeleteFlags
DeleteFlags *cmddelete.DeleteFlags
FieldManager string
Selector string
@ -84,7 +84,7 @@ type ApplyOptions struct {
PrintFlags *genericclioptions.PrintFlags
ToPrinter func(string) (printers.ResourcePrinter, error)
DeleteOptions *delete.DeleteOptions
DeleteOptions *cmddelete.DeleteOptions
ServerSideApply bool
ForceConflicts bool
@ -182,7 +182,7 @@ var ApplySetToolVersion = version.Get().GitVersion
func NewApplyFlags(streams genericiooptions.IOStreams) *ApplyFlags {
return &ApplyFlags{
RecordFlags: genericclioptions.NewRecordFlags(),
DeleteFlags: delete.NewDeleteFlags("The files that contain the configurations to apply."),
DeleteFlags: cmddelete.NewDeleteFlags("The files that contain the configurations to apply."),
PrintFlags: genericclioptions.NewPrintFlags("created").WithTypeSetter(scheme.Scheme),
Overwrite: true,
@ -681,6 +681,12 @@ See https://kubernetes.io/docs/reference/using-api/server-side-apply/#conflicts`
return cmdutil.AddSourceToErr("creating", info.Source, err)
}
// prune nulls when client-side apply does a create to match what will happen when client-side applying an update.
// do this after CreateApplyAnnotation so the annotation matches what will be persisted on an update apply of the same manifest.
if u, ok := info.Object.(runtime.Unstructured); ok {
pruneNullsFromMap(u.UnstructuredContent())
}
if o.DryRunStrategy != cmdutil.DryRunClient {
// Then create the resource and skip the three-way merge
obj, err := helper.Create(info.Namespace, true, info.Object)
@ -759,6 +765,29 @@ See https://kubernetes.io/docs/reference/using-api/server-side-apply/#conflicts`
return nil
}
func pruneNullsFromMap(data map[string]interface{}) {
for k, v := range data {
if v == nil {
delete(data, k)
} else {
pruneNulls(v)
}
}
}
func pruneNullsFromSlice(data []interface{}) {
for _, v := range data {
pruneNulls(v)
}
}
func pruneNulls(v interface{}) {
switch v := v.(type) {
case map[string]interface{}:
pruneNullsFromMap(v)
case []interface{}:
pruneNullsFromSlice(v)
}
}
// Saves the last-applied-configuration annotation in a separate SSA field manager
// to prevent it from being dropped by users who have transitioned to SSA.
//