k9s/internal/render/pvc.go

111 lines
2.7 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of K9s
package render
import (
"fmt"
"github.com/derailed/k9s/internal/client"
"github.com/derailed/k9s/internal/model1"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
)
var defaultPVCHeader = model1.Header{
model1.HeaderColumn{Name: "NAMESPACE"},
model1.HeaderColumn{Name: "NAME"},
model1.HeaderColumn{Name: "STATUS"},
model1.HeaderColumn{Name: "VOLUME"},
model1.HeaderColumn{Name: "CAPACITY", Attrs: model1.Attrs{Capacity: true}},
model1.HeaderColumn{Name: "ACCESS MODES"},
model1.HeaderColumn{Name: "STORAGECLASS"},
model1.HeaderColumn{Name: "LABELS", Attrs: model1.Attrs{Wide: true}},
model1.HeaderColumn{Name: "VALID", Attrs: model1.Attrs{Wide: true}},
model1.HeaderColumn{Name: "AGE", Attrs: model1.Attrs{Time: true}},
}
// PersistentVolumeClaim renders a K8s PersistentVolumeClaim to screen.
type PersistentVolumeClaim struct {
Base
}
// Header returns a header row.
func (p PersistentVolumeClaim) Header(_ string) model1.Header {
return p.doHeader(defaultPVCHeader)
}
// Render renders a K8s resource to screen.
func (p PersistentVolumeClaim) Render(o any, _ string, row *model1.Row) error {
raw, ok := o.(*unstructured.Unstructured)
if !ok {
return fmt.Errorf("expected Unstructured, but got %T", o)
}
if err := p.defaultRow(raw, row); err != nil {
return err
}
if p.specs.isEmpty() {
return nil
}
cols, err := p.specs.realize(raw, defaultPVCHeader, row)
if err != nil {
return err
}
cols.hydrateRow(row)
return nil
}
func (p PersistentVolumeClaim) defaultRow(raw *unstructured.Unstructured, r *model1.Row) error {
var pvc v1.PersistentVolumeClaim
err := runtime.DefaultUnstructuredConverter.FromUnstructured(raw.Object, &pvc)
if err != nil {
return err
}
phase := pvc.Status.Phase
if pvc.DeletionTimestamp != nil {
phase = "Terminating"
}
storage := pvc.Spec.Resources.Requests[v1.ResourceStorage]
var capacity, accessModes string
if pvc.Spec.VolumeName != "" {
accessModes = accessMode(pvc.Status.AccessModes)
storage = pvc.Status.Capacity[v1.ResourceStorage]
capacity = storage.String()
}
class, found := pvc.Annotations[v1.BetaStorageClassAnnotation]
if !found {
if pvc.Spec.StorageClassName != nil {
class = *pvc.Spec.StorageClassName
}
}
r.ID = client.MetaFQN(&pvc.ObjectMeta)
r.Fields = model1.Fields{
pvc.Namespace,
pvc.Name,
string(phase),
pvc.Spec.VolumeName,
capacity,
accessModes,
class,
mapToStr(pvc.Labels),
AsStatus(p.diagnose(string(phase))),
ToAge(pvc.GetCreationTimestamp()),
}
return nil
}
func (PersistentVolumeClaim) diagnose(r string) error {
if r != "Bound" && r != "Available" {
return fmt.Errorf("unexpected status %s", r)
}
return nil
}