121 lines
2.7 KiB
Go
121 lines
2.7 KiB
Go
package resource
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import (
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"context"
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"fmt"
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"strconv"
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"github.com/derailed/k9s/internal/k8s"
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"github.com/rs/zerolog/log"
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appsv1 "k8s.io/api/apps/v1"
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)
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// StatefulSet tracks a kubernetes resource.
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type StatefulSet struct {
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*Base
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instance *appsv1.StatefulSet
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}
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// NewStatefulSetList returns a new resource list.
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func NewStatefulSetList(c Connection, ns string) List {
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return NewList(
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ns,
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"sts",
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NewStatefulSet(c),
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AllVerbsAccess|DescribeAccess,
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)
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}
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// NewStatefulSet instantiates a new StatefulSet.
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func NewStatefulSet(c Connection) *StatefulSet {
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s := &StatefulSet{&Base{Connection: c, Resource: k8s.NewStatefulSet(c)}, nil}
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s.Factory = s
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return s
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}
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// New builds a new StatefulSet instance from a k8s resource.
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func (r *StatefulSet) New(i interface{}) Columnar {
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c := NewStatefulSet(r.Connection)
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switch instance := i.(type) {
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case *appsv1.StatefulSet:
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c.instance = instance
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case appsv1.StatefulSet:
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c.instance = &instance
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default:
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log.Fatal().Msgf("unknown StatefulSet 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 *StatefulSet) 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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sts := i.(*appsv1.StatefulSet)
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sts.TypeMeta.APIVersion = "v1"
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sts.TypeMeta.Kind = "StatefulSet"
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return r.marshalObject(sts)
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}
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// Logs tail logs for all pods represented by this statefulset.
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func (r *StatefulSet) Logs(ctx context.Context, c chan<- string, opts LogOptions) error {
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instance, err := r.Resource.Get(opts.Namespace, opts.Name)
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if err != nil {
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return err
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}
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sts := instance.(*appsv1.StatefulSet)
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if sts.Spec.Selector == nil || len(sts.Spec.Selector.MatchLabels) == 0 {
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return fmt.Errorf("No valid selector found on statefulset %s", opts.FQN())
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}
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return r.podLogs(ctx, c, sts.Spec.Selector.MatchLabels, opts)
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}
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// Header return resource header.
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func (*StatefulSet) 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", "DESIRED", "CURRENT", "AGE")
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}
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// NumCols designates if column is numerical.
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func (*StatefulSet) NumCols(n string) map[string]bool {
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return map[string]bool{
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"DESIRED": true,
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"CURRENT": true,
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}
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}
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// Fields retrieves displayable fields.
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func (r *StatefulSet) 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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strconv.Itoa(int(*i.Spec.Replicas)),
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strconv.Itoa(int(i.Status.ReadyReplicas)),
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toAge(i.ObjectMeta.CreationTimestamp),
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)
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}
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// Scale the specified resource.
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func (r *StatefulSet) Scale(ns, n string, replicas int32) error {
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return r.Resource.(Scalable).Scale(ns, n, replicas)
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}
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