100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
package render
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import (
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"fmt"
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"strings"
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"github.com/derailed/k9s/internal/client"
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rbacv1 "k8s.io/api/rbac/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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// RoleBinding renders a K8s RoleBinding to screen.
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type RoleBinding struct {
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Base
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}
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// Header returns a header rbw.
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func (RoleBinding) Header(ns string) Header {
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var h Header
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if client.IsAllNamespaces(ns) {
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h = append(h, HeaderColumn{Name: "NAMESPACE"})
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}
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return append(h,
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HeaderColumn{Name: "NAME"},
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HeaderColumn{Name: "ROLE"},
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HeaderColumn{Name: "KIND"},
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HeaderColumn{Name: "SUBJECTS"},
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HeaderColumn{Name: "LABELS", Wide: true},
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HeaderColumn{Name: "VALID", Wide: true},
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HeaderColumn{Name: "AGE", 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 (r RoleBinding) Render(o interface{}, ns string, row *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 RoleBinding, but got %T", o)
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}
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var rb rbacv1.RoleBinding
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err := runtime.DefaultUnstructuredConverter.FromUnstructured(raw.Object, &rb)
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if err != nil {
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return err
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}
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kind, ss := renderSubjects(rb.Subjects)
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row.ID = client.MetaFQN(rb.ObjectMeta)
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row.Fields = make(Fields, 0, len(r.Header(ns)))
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if client.IsAllNamespaces(ns) {
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row.Fields = append(row.Fields, rb.Namespace)
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}
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row.Fields = append(row.Fields,
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rb.Name,
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rb.RoleRef.Name,
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kind,
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ss,
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mapToStr(rb.Labels),
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"",
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toAge(rb.ObjectMeta.CreationTimestamp),
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)
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return nil
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}
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// ----------------------------------------------------------------------------
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// Helpers...
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func renderSubjects(ss []rbacv1.Subject) (kind string, subjects string) {
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if len(ss) == 0 {
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return NAValue, ""
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}
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tt := make([]string, 0, len(ss))
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for _, s := range ss {
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kind = toSubjectAlias(s.Kind)
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tt = append(tt, s.Name)
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}
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return kind, strings.Join(tt, ",")
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}
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func toSubjectAlias(s string) string {
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if len(s) == 0 {
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return s
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}
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switch s {
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case rbacv1.UserKind:
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return "User"
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case rbacv1.GroupKind:
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return "Group"
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case rbacv1.ServiceAccountKind:
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return "SvcAcct"
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default:
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return strings.ToUpper(s)
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}
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}
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