k9s/internal/resource/pvc.go

113 lines
2.3 KiB
Go

package resource
import (
"github.com/derailed/k9s/internal/k8s"
"github.com/rs/zerolog/log"
v1 "k8s.io/api/core/v1"
)
// PVC tracks a kubernetes resource.
type PVC struct {
*Base
instance *v1.PersistentVolumeClaim
}
// NewPVCList returns a new resource list.
func NewPVCList(c Connection, ns string) List {
return NewList(
ns,
"pvc",
NewPVC(c),
AllVerbsAccess|DescribeAccess,
)
}
// NewPVC instantiates a new PVC.
func NewPVC(c Connection) *PVC {
p := &PVC{&Base{Connection: c, Resource: k8s.NewPVC(c)}, nil}
p.Factory = p
return p
}
// New builds a new PVC instance from a k8s resource.
func (r *PVC) New(i interface{}) Columnar {
c := NewPVC(r.Connection)
switch instance := i.(type) {
case *v1.PersistentVolumeClaim:
c.instance = instance
case v1.PersistentVolumeClaim:
c.instance = &instance
default:
log.Fatal().Msgf("unknown PVC type %#v", i)
}
c.path = c.namespacedName(c.instance.ObjectMeta)
return c
}
// Marshal resource to yaml.
func (r *PVC) Marshal(path string) (string, error) {
ns, n := namespaced(path)
i, err := r.Resource.Get(ns, n)
if err != nil {
return "", err
}
pvc := i.(*v1.PersistentVolumeClaim)
pvc.TypeMeta.APIVersion = "v1"
pvc.TypeMeta.Kind = "PersistentVolumeClaim"
return r.marshalObject(pvc)
}
// Header return resource header.
func (*PVC) Header(ns string) Row {
hh := Row{}
if ns == AllNamespaces {
hh = append(hh, "NAMESPACE")
}
return append(hh, "NAME", "STATUS", "VOLUME", "CAPACITY", "ACCESS MODES", "STORAGECLASS", "AGE")
}
// Fields retrieves displayable fields.
func (r *PVC) Fields(ns string) Row {
ff := make(Row, 0, len(r.Header(ns)))
i := r.instance
if ns == AllNamespaces {
ff = append(ff, i.Namespace)
}
phase := i.Status.Phase
if i.ObjectMeta.DeletionTimestamp != nil {
phase = "Terminating"
}
pv := PV{}
storage := i.Spec.Resources.Requests[v1.ResourceStorage]
var capacity, accessModes string
if i.Spec.VolumeName != "" {
accessModes = pv.accessMode(i.Status.AccessModes)
storage = i.Status.Capacity[v1.ResourceStorage]
capacity = storage.String()
}
class, found := i.Annotations[v1.BetaStorageClassAnnotation]
if !found {
if i.Spec.StorageClassName != nil {
class = *i.Spec.StorageClassName
}
}
return append(ff,
i.Name,
string(phase),
i.Spec.VolumeName,
capacity,
accessModes,
class,
toAge(i.ObjectMeta.CreationTimestamp),
)
}