129 lines
2.7 KiB
Go
129 lines
2.7 KiB
Go
package resource
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import (
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"fmt"
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"strconv"
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"github.com/derailed/k9s/internal/k8s"
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log "github.com/sirupsen/logrus"
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yaml "gopkg.in/yaml.v2"
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"k8s.io/api/autoscaling/v1"
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)
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// HPA tracks a kubernetes resource.
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type HPA struct {
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*Base
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instance *v1.HorizontalPodAutoscaler
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}
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// NewHPAList returns a new resource list.
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func NewHPAList(ns string) List {
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return NewHPAListWithArgs(ns, NewHPA())
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}
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// NewHPAListWithArgs returns a new resource list.
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func NewHPAListWithArgs(ns string, res Resource) List {
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return newList(ns, "hpa", res, AllVerbsAccess)
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}
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// NewHPA instantiates a new Endpoint.
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func NewHPA() *HPA {
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return NewHPAWithArgs(k8s.NewHPA())
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}
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// NewHPAWithArgs instantiates a new Endpoint.
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func NewHPAWithArgs(r k8s.Res) *HPA {
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ep := &HPA{
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Base: &Base{
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caller: r,
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},
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}
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ep.creator = ep
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return ep
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}
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// NewInstance builds a new Endpoint instance from a k8s resource.
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func (*HPA) NewInstance(i interface{}) Columnar {
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cm := NewHPA()
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switch i.(type) {
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case *v1.HorizontalPodAutoscaler:
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cm.instance = i.(*v1.HorizontalPodAutoscaler)
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case v1.HorizontalPodAutoscaler:
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ii := i.(v1.HorizontalPodAutoscaler)
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cm.instance = &ii
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default:
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log.Fatalf("Unknown %#v", i)
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}
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cm.path = cm.namespacedName(cm.instance.ObjectMeta)
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return cm
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}
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// Marshal resource to yaml.
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func (r *HPA) Marshal(path string) (string, error) {
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ns, n := namespaced(path)
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i, err := r.caller.Get(ns, n)
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if err != nil {
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return "", err
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}
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hpa := i.(*v1.HorizontalPodAutoscaler)
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hpa.TypeMeta.APIVersion = "autoscaling/v1"
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hpa.TypeMeta.Kind = "HPA"
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raw, err := yaml.Marshal(i)
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if err != nil {
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return "", err
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}
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return string(raw), nil
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}
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// Header return resource header.
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func (*HPA) 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,
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"NAME",
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"REFERENCE",
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"TARGETS",
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"MINPODS",
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"MAXPODS",
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"REPLICAS",
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"AGE")
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}
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// Fields retrieves displayable fields.
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func (r *HPA) 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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target := "<unknown>"
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if i.Status.CurrentCPUUtilizationPercentage != nil {
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target = strconv.Itoa(int(*i.Status.CurrentCPUUtilizationPercentage))
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}
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var current int32
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if i.Spec.TargetCPUUtilizationPercentage != nil {
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current = *i.Spec.TargetCPUUtilizationPercentage
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}
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return append(ff,
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i.ObjectMeta.Name,
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i.Spec.ScaleTargetRef.Name,
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fmt.Sprintf("%s٪/%d٪", target, current),
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strconv.Itoa(int(*i.Spec.MinReplicas)),
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strconv.Itoa(int(i.Spec.MaxReplicas)),
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strconv.Itoa(int(i.Status.CurrentReplicas)),
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toAge(i.ObjectMeta.CreationTimestamp),
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)
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}
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// ExtFields returns extended fields in relation to headers.
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func (*HPA) ExtFields() Properties {
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return Properties{}
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}
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