122 lines
2.5 KiB
Go
122 lines
2.5 KiB
Go
package resource
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import (
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"strconv"
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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/core/v1"
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)
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// Endpoints tracks a kubernetes resource.
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type Endpoints struct {
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*Base
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instance *v1.Endpoints
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}
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// NewEndpointsList returns a new resource list.
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func NewEndpointsList(c Connection, ns string) List {
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return NewList(
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ns,
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"ep",
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NewEndpoints(c),
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AllVerbsAccess|DescribeAccess,
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)
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}
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// NewEndpoints instantiates a new Endpoints.
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func NewEndpoints(c Connection) *Endpoints {
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ep := &Endpoints{&Base{Connection: c, Resource: k8s.NewEndpoints(c)}, nil}
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ep.Factory = ep
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return ep
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}
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// New builds a new Endpoints instance from a k8s resource.
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func (r *Endpoints) New(i interface{}) Columnar {
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c := NewEndpoints(r.Connection)
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switch instance := i.(type) {
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case *v1.Endpoints:
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c.instance = instance
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case v1.Endpoints:
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c.instance = &instance
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default:
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log.Fatal().Msgf("unknown Endpoints type %#v", i)
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}
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c.path = c.namespacedName(c.instance.ObjectMeta)
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return c
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}
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// Marshal resource to yaml.
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func (r *Endpoints) 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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ep := i.(*v1.Endpoints)
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ep.TypeMeta.APIVersion = "v1"
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ep.TypeMeta.Kind = "Endpoint"
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return r.marshalObject(ep)
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}
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// Header return resource header.
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func (*Endpoints) Header(ns string) Row {
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hh := Row{}
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if ns == AllNamespaces {
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hh = append(hh, "NAMESPACE")
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}
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return append(hh, "NAME", "ENDPOINTS", "AGE")
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}
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// Fields retrieves displayable fields.
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func (r *Endpoints) 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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if ns == AllNamespaces {
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ff = append(ff, i.Namespace)
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}
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return append(ff,
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i.Name,
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missing(r.toEPs(i.Subsets)),
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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 (r *Endpoints) toEPs(ss []v1.EndpointSubset) string {
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aa := make([]string, 0, len(ss))
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max := 3
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for _, s := range ss {
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pp := make([]string, 0, len(s.Ports))
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for _, p := range s.Ports {
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pp = append(pp, strconv.Itoa(int(p.Port)))
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}
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for _, a := range s.Addresses {
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if len(a.IP) == 0 {
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continue
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}
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if len(pp) == 0 {
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aa = append(aa, a.IP)
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continue
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}
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add := a.IP + ":" + strings.Join(pp, ",")
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if len(pp) > max {
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add = a.IP + ":" + strings.Join(pp[:max], ",") + "..."
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}
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aa = append(aa, add)
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}
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}
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return strings.Join(aa, ",")
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}
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