/
pdb.go
91 lines (80 loc) 路 2.54 KB
/
pdb.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of K9s
package render
import (
"fmt"
"strconv"
"github.com/derailed/k9s/internal/client"
"github.com/derailed/k9s/internal/model1"
"github.com/derailed/tview"
v1beta1 "k8s.io/api/policy/v1beta1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/intstr"
)
// PodDisruptionBudget renders a K8s PodDisruptionBudget to screen.
type PodDisruptionBudget struct {
Base
}
// Header returns a header row.
func (PodDisruptionBudget) Header(ns string) model1.Header {
return model1.Header{
model1.HeaderColumn{Name: "NAMESPACE"},
model1.HeaderColumn{Name: "NAME"},
model1.HeaderColumn{Name: "MIN AVAILABLE", Align: tview.AlignRight},
model1.HeaderColumn{Name: "MAX UNAVAILABLE", Align: tview.AlignRight},
model1.HeaderColumn{Name: "ALLOWED DISRUPTIONS", Align: tview.AlignRight},
model1.HeaderColumn{Name: "CURRENT", Align: tview.AlignRight},
model1.HeaderColumn{Name: "DESIRED", Align: tview.AlignRight},
model1.HeaderColumn{Name: "EXPECTED", Align: tview.AlignRight},
model1.HeaderColumn{Name: "LABELS", Wide: true},
model1.HeaderColumn{Name: "VALID", Wide: true},
model1.HeaderColumn{Name: "AGE", Time: true},
}
}
// Render renders a K8s resource to screen.
func (p PodDisruptionBudget) Render(o interface{}, ns string, r *model1.Row) error {
raw, ok := o.(*unstructured.Unstructured)
if !ok {
return fmt.Errorf("expected PodDisruptionBudget, but got %T", o)
}
var pdb v1beta1.PodDisruptionBudget
err := runtime.DefaultUnstructuredConverter.FromUnstructured(raw.Object, &pdb)
if err != nil {
return err
}
r.ID = client.MetaFQN(pdb.ObjectMeta)
r.Fields = model1.Fields{
pdb.Namespace,
pdb.Name,
numbToStr(pdb.Spec.MinAvailable),
numbToStr(pdb.Spec.MaxUnavailable),
strconv.Itoa(int(pdb.Status.DisruptionsAllowed)),
strconv.Itoa(int(pdb.Status.CurrentHealthy)),
strconv.Itoa(int(pdb.Status.DesiredHealthy)),
strconv.Itoa(int(pdb.Status.ExpectedPods)),
mapToStr(pdb.Labels),
AsStatus(p.diagnose(pdb.Spec.MinAvailable, pdb.Status.CurrentHealthy)),
ToAge(pdb.GetCreationTimestamp()),
}
return nil
}
func (PodDisruptionBudget) diagnose(min *intstr.IntOrString, healthy int32) error {
if min == nil {
return nil
}
if min.IntVal > healthy {
return fmt.Errorf("expected %d but got %d", min.IntVal, healthy)
}
return nil
}
// Helpers...
func numbToStr(n *intstr.IntOrString) string {
if n == nil {
return NAValue
}
if n.Type == intstr.Int {
return strconv.Itoa(int(n.IntVal))
}
return n.StrVal
}