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Add AnyVolumeDataSource feature gate

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Allow any custom resource to be the data source of a PVC, if the
AnyVolumeDataSource feature gate is enabled. This is an alpha feature.
This commit is contained in:
Ben Swartzlander
2020-03-04 17:25:48 -05:00
parent e865c0b219
commit e8b09d3644
11 changed files with 155 additions and 36 deletions
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22
pkg/apis/core/validation/validation.go
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@@ -38,7 +38,6 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
unversionedvalidation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/diff"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/sets"
@@ -1563,11 +1562,6 @@ var supportedReclaimPolicy = sets.NewString(string(core.PersistentVolumeReclaimD
var supportedVolumeModes = sets.NewString(string(core.PersistentVolumeBlock), string(core.PersistentVolumeFilesystem))
var supportedDataSourceAPIGroupKinds = map[schema.GroupKind]bool{
{Group: "snapshot.storage.k8s.io", Kind: "VolumeSnapshot"}: true,
{Group: "", Kind: "PersistentVolumeClaim"}: true,
}
func ValidatePersistentVolumeSpec(pvSpec *core.PersistentVolumeSpec, pvName string, validateInlinePersistentVolumeSpec bool, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
@@ -1929,17 +1923,15 @@ func ValidatePersistentVolumeClaimSpec(spec *core.PersistentVolumeClaimSpec, fld
if len(spec.DataSource.Name) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("dataSource", "name"), ""))
}
groupKind := schema.GroupKind{Group: "", Kind: spec.DataSource.Kind}
if len(spec.DataSource.Kind) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("dataSource", "kind"), ""))
}
apiGroup := ""
if spec.DataSource.APIGroup != nil {
groupKind.Group = string(*spec.DataSource.APIGroup)
apiGroup = *spec.DataSource.APIGroup
}
groupKindList := make([]string, 0, len(supportedDataSourceAPIGroupKinds))
for grp := range supportedDataSourceAPIGroupKinds {
groupKindList = append(groupKindList, grp.String())
}
if !supportedDataSourceAPIGroupKinds[groupKind] {
allErrs = append(allErrs, field.NotSupported(fldPath.Child("dataSource"), groupKind.String(), groupKindList))
if len(apiGroup) == 0 && spec.DataSource.Kind != "PersistentVolumeClaim" {
allErrs = append(allErrs, field.Invalid(fldPath.Child("dataSource"), spec.DataSource.Kind, ""))
}
}