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