142 lines
3.5 KiB
Go
142 lines
3.5 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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"errors"
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"fmt"
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"log/slog"
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"strings"
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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/k9s/internal/slogs"
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v1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/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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)
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// CustomResourceDefinition renders a K8s CustomResourceDefinition to screen.
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type CustomResourceDefinition struct {
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Base
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}
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// Header returns a header row.
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func (c CustomResourceDefinition) Header(_ string) model1.Header {
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return c.doHeader(c.defaultHeader())
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}
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// Header returns a header rbw.
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func (CustomResourceDefinition) defaultHeader() model1.Header {
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return model1.Header{
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model1.HeaderColumn{Name: "NAME"},
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model1.HeaderColumn{Name: "GROUP"},
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model1.HeaderColumn{Name: "KIND"},
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model1.HeaderColumn{Name: "VERSIONS"},
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model1.HeaderColumn{Name: "SCOPE"},
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model1.HeaderColumn{Name: "ALIASES", Attrs: model1.Attrs{Wide: true}},
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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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}
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// Render renders a K8s resource to screen.
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func (c CustomResourceDefinition) Render(o interface{}, ns 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 CustomResourceDefinition, but got %T", o)
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}
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if err := c.defaultRow(raw, row); err != nil {
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return err
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}
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if c.specs.isEmpty() {
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return nil
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}
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// !BOZO!! Call header 2 times
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cols, err := c.specs.realize(raw, c.defaultHeader(), 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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// Render renders a K8s resource to screen.
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func (c CustomResourceDefinition) defaultRow(raw *unstructured.Unstructured, r *model1.Row) error {
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var crd v1.CustomResourceDefinition
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err := runtime.DefaultUnstructuredConverter.FromUnstructured(raw.Object, &crd)
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if err != nil {
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return err
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}
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versions := make([]string, 0, len(crd.Spec.Versions))
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for _, v := range crd.Spec.Versions {
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if v.Served {
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n := v.Name
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if v.Deprecated {
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n += "!"
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}
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versions = append(versions, n)
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}
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}
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if len(versions) == 0 {
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slog.Warn("Unable to assert CRD versions", slogs.FQN, crd.Name)
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}
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r.ID = client.MetaFQN(crd.ObjectMeta)
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r.Fields = model1.Fields{
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crd.Spec.Names.Plural,
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crd.Spec.Group,
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crd.Spec.Names.Kind,
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naStrings(versions),
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string(crd.Spec.Scope),
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naStrings(crd.Spec.Names.ShortNames),
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mapToIfc(crd.GetLabels()),
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AsStatus(c.diagnose(crd.Name, crd.Spec.Versions)),
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ToAge(crd.GetCreationTimestamp()),
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}
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return nil
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}
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func (c CustomResourceDefinition) diagnose(n string, vv []v1.CustomResourceDefinitionVersion) error {
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if len(vv) == 0 {
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return fmt.Errorf("unable to assert CRD servers versions for %s", n)
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}
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var (
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ee []error
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served bool
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)
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for _, v := range vv {
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if v.Served {
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served = true
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}
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if v.Deprecated {
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if v.DeprecationWarning != nil {
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ee = append(ee, fmt.Errorf("%s", *v.DeprecationWarning))
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} else {
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ee = append(ee, fmt.Errorf("%s[%s] is deprecated", n, v.Name))
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}
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}
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}
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if !served {
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ee = append(ee, fmt.Errorf("CRD %s is no longer served by the api server", n))
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}
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if len(ee) == 0 {
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return nil
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}
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errs := make([]string, 0, len(ee))
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for _, e := range ee {
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errs = append(errs, e.Error())
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}
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return errors.New(strings.Join(errs, " - "))
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}
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