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Kubectl describe for experimental HorizontalPodAutoscaler

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This commit is contained in:
Marcin Wielgus
2015-08-26 16:17:18 +02:00
parent 1a8b400c3e
commit 55cd0d565e
9 changed files with 145 additions and 37 deletions
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65
pkg/kubectl/describe.go
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@@ -82,8 +82,13 @@ func describerMap(c *client.Client) map[string]Describer {
return m
}
func expDescriberMap(c *client.ExperimentalClient) map[string]Describer {
return map[string]Describer{}
func expDescriberMap(c *client.Client, exp *client.ExperimentalClient) map[string]Describer {
return map[string]Describer{
"HorizontalPodAutoscaler": &HorizontalPodAutoscalerDescriber{
client: c,
experimental: exp,
},
}
}
// List of all resource types we can describe
@@ -102,10 +107,12 @@ func DescribableResources() []string {
func DescriberFor(kind string, c *client.Client, ec *client.ExperimentalClient) (Describer, bool) {
var f Describer
var ok bool
if c != nil {
f, ok = describerMap(c)[kind]
} else if ec != nil {
f, ok = expDescriberMap(ec)[kind]
}
if !ok && c != nil && ec != nil {
f, ok = expDescriberMap(c, ec)[kind]
}
return f, ok
}
@@ -1104,6 +1111,56 @@ func describeNode(node *api.Node, pods []*api.Pod, events *api.EventList) (strin
})
}
// HorizontalPodAutoscalerDescriber generates information about a horizontal pod autoscaler.
type HorizontalPodAutoscalerDescriber struct {
client *client.Client
experimental *client.ExperimentalClient
}
func (d *HorizontalPodAutoscalerDescriber) Describe(namespace, name string) (string, error) {
hpa, err := d.experimental.HorizontalPodAutoscalers(namespace).Get(name)
if err != nil {
return "", err
}
return tabbedString(func(out io.Writer) error {
fmt.Fprintf(out, "Name:\t%s\n", hpa.Name)
fmt.Fprintf(out, "Namespace:\t%s\n", hpa.Namespace)
fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(hpa.Labels))
fmt.Fprintf(out, "CreationTimestamp:\t%s\n", hpa.CreationTimestamp.Time.Format(time.RFC1123Z))
fmt.Fprintf(out, "Reference:\t%s/%s/%s/%s\n",
hpa.Spec.ScaleRef.Kind,
hpa.Spec.ScaleRef.Namespace,
hpa.Spec.ScaleRef.Name,
hpa.Spec.ScaleRef.Subresource)
fmt.Fprintf(out, "Target resource consumption:\t%s %s\n",
hpa.Spec.Target.Quantity.String(),
hpa.Spec.Target.Resource)
fmt.Fprintf(out, "Current resource consumption:\t")
if hpa.Status != nil && hpa.Status.CurrentConsumption != nil {
fmt.Fprintf(out, "%s %s\n",
hpa.Status.CurrentConsumption.Quantity.String(),
hpa.Status.CurrentConsumption.Resource)
} else {
fmt.Fprintf(out, "<not available>\n")
}
fmt.Fprintf(out, "Min pods:\t%d\n", hpa.Spec.MinCount)
fmt.Fprintf(out, "Max pods:\t%d\n", hpa.Spec.MaxCount)
// TODO: switch to scale subresource once the required code is submitted.
if strings.ToLower(hpa.Spec.ScaleRef.Kind) == "replicationcontroller" {
fmt.Fprintf(out, "ReplicationController pods:\t")
rc, err := d.client.ReplicationControllers(hpa.Spec.ScaleRef.Namespace).Get(hpa.Spec.ScaleRef.Name)
if err == nil {
fmt.Fprintf(out, "%d current / %d desired\n", rc.Status.Replicas, rc.Spec.Replicas)
} else {
fmt.Fprintf(out, "failed to check Replication Controller\n")
}
}
return nil
})
}
func filterNonRunningPods(pods []*api.Pod) []*api.Pod {
if len(pods) == 0 {
return pods