k9s/internal/dao/resource.go

54 lines
1.3 KiB
Go

package dao
import (
"context"
"fmt"
"github.com/derailed/k9s/internal"
"github.com/rs/zerolog/log"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
)
var (
_ Accessor = (*Resource)(nil)
_ Describer = (*Resource)(nil)
_ Nuker = (*Resource)(nil)
)
// Resource represents an informer based resource.
type Resource struct {
Generic
}
// List returns a collection of resources.
func (r *Resource) List(ctx context.Context, ns string) ([]runtime.Object, error) {
log.Debug().Msgf("INF-LIST %q:%q", ns, r.gvr)
strLabel, ok := ctx.Value(internal.KeyLabels).(string)
lsel := labels.Everything()
if sel, err := labels.ConvertSelectorToLabelsMap(strLabel); ok && err == nil {
lsel = sel.AsSelector()
}
return r.Factory.List(r.gvr.String(), ns, false, lsel)
}
// Get returns a resource instance if found, else an error.
func (r *Resource) Get(ctx context.Context, path string) (runtime.Object, error) {
return r.Factory.Get(r.gvr.String(), path, true, labels.Everything())
}
// ToYAML returns a resource yaml.
func (r *Resource) ToYAML(path string) (string, error) {
o, err := r.Get(context.Background(), path)
if err != nil {
return "", err
}
raw, err := ToYAML(o)
if err != nil {
return "", fmt.Errorf("unable to marshal resource %s", err)
}
return raw, nil
}