119 lines
2.5 KiB
Go
119 lines
2.5 KiB
Go
package resource
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import (
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"strings"
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"github.com/derailed/k9s/internal/k8s"
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"github.com/rs/zerolog/log"
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v1 "k8s.io/api/rbac/v1"
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)
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// ClusterRoleBinding tracks a kubernetes resource.
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type ClusterRoleBinding struct {
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*Base
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instance *v1.ClusterRoleBinding
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}
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// NewClusterRoleBindingList returns a new resource list.
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func NewClusterRoleBindingList(c Connection, _ string) List {
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return NewList(
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NotNamespaced,
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"clusterrolebinding",
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NewClusterRoleBinding(c),
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ViewAccess|DeleteAccess|DescribeAccess,
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)
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}
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// NewClusterRoleBinding instantiates a new ClusterRoleBinding.
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func NewClusterRoleBinding(c Connection) *ClusterRoleBinding {
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crb := &ClusterRoleBinding{&Base{Connection: c, Resource: k8s.NewClusterRoleBinding(c)}, nil}
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crb.Factory = crb
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return crb
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}
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// New builds a new tabular instance from a k8s resource.
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func (r *ClusterRoleBinding) New(i interface{}) Columnar {
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crb := NewClusterRoleBinding(r.Connection)
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switch instance := i.(type) {
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case *v1.ClusterRoleBinding:
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crb.instance = instance
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case v1.ClusterRoleBinding:
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crb.instance = &instance
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default:
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log.Fatal().Msgf("unknown context type %#v", i)
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}
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crb.path = crb.instance.Name
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return crb
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}
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// Marshal resource to yaml.
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func (r *ClusterRoleBinding) Marshal(path string) (string, error) {
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ns, n := Namespaced(path)
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i, err := r.Resource.Get(ns, n)
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if err != nil {
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return "", err
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}
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crb := i.(*v1.ClusterRoleBinding)
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crb.TypeMeta.APIVersion = "rbac.authorization.k8s.io/v1"
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crb.TypeMeta.Kind = "ClusterRoleBinding"
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return r.marshalObject(crb)
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}
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// Header return resource header.
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func (*ClusterRoleBinding) Header(_ string) Row {
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return append(Row{}, "NAME", "ROLE", "KIND", "SUBJECTS", "AGE")
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}
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// Fields retrieves displayable fields.
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func (r *ClusterRoleBinding) Fields(ns string) Row {
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ff := make(Row, 0, len(r.Header(ns)))
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i := r.instance
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kind, ss := renderSubjects(i.Subjects)
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return append(ff,
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i.Name,
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i.RoleRef.Name,
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kind,
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ss,
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toAge(i.ObjectMeta.CreationTimestamp),
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)
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}
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// ----------------------------------------------------------------------------
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// Helpers...
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func renderSubjects(ss []v1.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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var tt []string
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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 v1.UserKind:
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return "USR"
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case v1.GroupKind:
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return "GRP"
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case v1.ServiceAccountKind:
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return "SA"
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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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