k9s/internal/resource/cm.go

97 lines
1.9 KiB
Go

package resource
import (
"log"
"strconv"
"github.com/derailed/k9s/internal/k8s"
v1 "k8s.io/api/core/v1"
)
// ConfigMap tracks a kubernetes resource.
type ConfigMap struct {
*Base
instance *v1.ConfigMap
}
// NewConfigMapList returns a new resource list.
func NewConfigMapList(c Connection, ns string) List {
return NewList(
ns,
"cm",
NewConfigMap(c),
AllVerbsAccess|DescribeAccess,
)
}
// NewConfigMap instantiates a new ConfigMap.
func NewConfigMap(c Connection) *ConfigMap {
m := &ConfigMap{&Base{Connection: c, Resource: k8s.NewConfigMap(c)}, nil}
m.Factory = m
return m
}
// New builds a new ConfigMap instance from a k8s resource.
func (r *ConfigMap) New(i interface{}) Columnar {
cm := NewConfigMap(r.Connection)
switch instance := i.(type) {
case *v1.ConfigMap:
cm.instance = instance
case v1.ConfigMap:
cm.instance = &instance
default:
log.Fatalf("Unknown %#v", i)
}
cm.path = cm.namespacedName(cm.instance.ObjectMeta)
return cm
}
// Marshal resource to yaml.
func (r *ConfigMap) Marshal(path string) (string, error) {
ns, n := namespaced(path)
i, err := r.Resource.Get(ns, n)
if err != nil {
return "", err
}
cm := i.(*v1.ConfigMap)
cm.TypeMeta.APIVersion = "v1"
cm.TypeMeta.Kind = "ConfigMap"
return r.marshalObject(cm)
}
// Header return resource header.
func (*ConfigMap) Header(ns string) Row {
hh := Row{}
if ns == AllNamespaces {
hh = append(hh, "NAMESPACE")
}
return append(hh, "NAME", "DATA", "AGE")
}
// NumCols designates if column is numerical.
func (*ConfigMap) NumCols(n string) map[string]bool {
return map[string]bool{
"DATA": true,
}
}
// Fields retrieves displayable fields.
func (r *ConfigMap) Fields(ns string) Row {
ff := make(Row, 0, len(r.Header(ns)))
i := r.instance
if ns == AllNamespaces {
ff = append(ff, i.Namespace)
}
return append(ff,
i.Name,
strconv.Itoa(len(i.Data)),
toAge(i.ObjectMeta.CreationTimestamp),
)
}