k9s/internal/resource/pdb.go

130 lines
3.0 KiB
Go

package resource
import (
"strconv"
"github.com/derailed/k9s/internal/k8s"
"github.com/rs/zerolog/log"
v1beta1 "k8s.io/api/policy/v1beta1"
)
// PodDisruptionBudget that can be displayed in a table and interacted with.
type PodDisruptionBudget struct {
*Base
instance *v1beta1.PodDisruptionBudget
}
// NewPDBList returns a new resource list.
func NewPDBList(ns string) List {
return NewPDBListWithArgs(ns, NewPDB())
}
// NewPDBListWithArgs returns a new resource list.
func NewPDBListWithArgs(ns string, res Resource) List {
return newList(ns, "pdb", res, AllVerbsAccess|DescribeAccess)
}
// NewPDB returns a new PodDisruptionBudget instance.
func NewPDB() *PodDisruptionBudget {
return NewPDBWithArgs(k8s.NewPodDisruptionBudget())
}
// NewPDBWithArgs returns a new Pod instance.
func NewPDBWithArgs(r k8s.Res) *PodDisruptionBudget {
p := &PodDisruptionBudget{
Base: &Base{
caller: r,
},
}
p.creator = p
return p
}
// NewInstance builds a new PodDisruptionBudget instance from a k8s resource.
func (r *PodDisruptionBudget) NewInstance(i interface{}) Columnar {
pdb := NewPDB()
switch i.(type) {
case *v1beta1.PodDisruptionBudget:
pdb.instance = i.(*v1beta1.PodDisruptionBudget)
case v1beta1.PodDisruptionBudget:
ii := i.(v1beta1.PodDisruptionBudget)
pdb.instance = &ii
case *interface{}:
ptr := *i.(*interface{})
pdbi := ptr.(v1beta1.PodDisruptionBudget)
pdb.instance = &pdbi
default:
log.Fatal().Msgf("Unknown %#v", i)
}
pdb.path = r.namespacedName(pdb.instance.ObjectMeta)
return pdb
}
// Marshal resource to yaml.
func (r *PodDisruptionBudget) Marshal(path string) (string, error) {
ns, n := namespaced(path)
i, err := r.caller.Get(ns, n)
if err != nil {
return "", err
}
pdb := i.(*v1beta1.PodDisruptionBudget)
pdb.TypeMeta.APIVersion = "v1beta1"
pdb.TypeMeta.Kind = "PodDisruptionBudget"
return r.marshalObject(pdb)
}
// Header return resource header.
func (*PodDisruptionBudget) Header(ns string) Row {
hh := Row{}
if ns == AllNamespaces {
hh = append(hh, "NAMESPACE")
}
return append(hh,
"NAME",
"MIN AVAILABLE",
"MAX_ UNAVAILABLE",
"ALLOWED DISRUPTIONS",
"CURRENT",
"DESIRED",
"EXPECTED",
"AGE",
)
}
// Fields retrieves displayable fields.
func (r *PodDisruptionBudget) Fields(ns string) Row {
ff := make(Row, 0, len(r.Header(ns)))
i := r.instance
if ns == AllNamespaces {
ff = append(ff, i.Namespace)
}
min := NAValue
if i.Spec.MinAvailable != nil {
min = strconv.Itoa(int(i.Spec.MinAvailable.IntVal))
}
max := NAValue
if i.Spec.MaxUnavailable != nil {
max = strconv.Itoa(int(i.Spec.MaxUnavailable.IntVal))
}
return append(ff,
i.Name,
min,
max,
strconv.Itoa(int(i.Status.PodDisruptionsAllowed)),
strconv.Itoa(int(i.Status.CurrentHealthy)),
strconv.Itoa(int(i.Status.DesiredHealthy)),
strconv.Itoa(int(i.Status.ExpectedPods)),
toAge(i.ObjectMeta.CreationTimestamp),
)
}
// ExtFields returns extra info about the resource.
func (r *PodDisruptionBudget) ExtFields() Properties {
return nil
}