k9s/internal/resource/rc.go

96 lines
2.4 KiB
Go

package resource
import (
"strconv"
"github.com/derailed/k9s/internal/k8s"
"github.com/rs/zerolog/log"
v1 "k8s.io/api/core/v1"
)
// ReplicationController tracks a kubernetes resource.
type ReplicationController struct {
*Base
instance *v1.ReplicationController
}
// NewReplicationControllerList returns a new resource list.
func NewReplicationControllerList(c Connection, ns string) List {
return NewList(
ns,
"rc",
NewReplicationController(c),
AllVerbsAccess|DescribeAccess,
)
}
// NewReplicationController instantiates a new ReplicationController.
func NewReplicationController(c Connection) *ReplicationController {
r := &ReplicationController{&Base{Connection: c, Resource: k8s.NewReplicationController(c)}, nil}
r.Factory = r
return r
}
// New builds a new ReplicationController instance from a k8s resource.
func (r *ReplicationController) New(i interface{}) Columnar {
c := NewReplicationController(r.Connection)
switch instance := i.(type) {
case *v1.ReplicationController:
c.instance = instance
case v1.ReplicationController:
c.instance = &instance
default:
log.Fatal().Msgf("unknown ReplicationController type %#v", i)
}
c.path = c.namespacedName(c.instance.ObjectMeta)
return c
}
// Marshal a deployment given a namespaced name.
func (r *ReplicationController) Marshal(path string) (string, error) {
ns, n := namespaced(path)
i, err := r.Resource.Get(ns, n)
if err != nil {
return "", err
}
rc := i.(*v1.ReplicationController)
rc.TypeMeta.APIVersion = "v1"
rc.TypeMeta.Kind = "ReplicationController"
return r.marshalObject(rc)
}
// Header return resource header.
func (*ReplicationController) Header(ns string) Row {
hh := Row{}
if ns == AllNamespaces {
hh = append(hh, "NAMESPACE")
}
return append(hh, "NAME", "DESIRED", "CURRENT", "READY", "AGE")
}
// Fields retrieves displayable fields.
func (r *ReplicationController) Fields(ns string) Row {
ff := make(Row, 0, len(r.Header(ns)))
if ns == AllNamespaces {
ff = append(ff, r.instance.Namespace)
}
i := r.instance
return append(ff,
i.Name,
strconv.Itoa(int(*i.Spec.Replicas)),
strconv.Itoa(int(i.Status.Replicas)),
strconv.Itoa(int(i.Status.ReadyReplicas)),
toAge(i.ObjectMeta.CreationTimestamp),
)
}
// Scale the specified resource.
func (r *ReplicationController) Scale(ns, n string, replicas int32) error {
return r.Resource.(Scalable).Scale(ns, n, replicas)
}