Golang labels.FormatLabels函数代码示例

func describeService(service *api.Service, endpoints *api.Endpoints, events *api.EventList) (string, error) {
	if endpoints == nil {
		endpoints = &api.Endpoints{}
	}
	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", service.Name)
		fmt.Fprintf(out, "Namespace:\t%s\n", service.Namespace)
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(service.Labels))
		fmt.Fprintf(out, "Selector:\t%s\n", labels.FormatLabels(service.Spec.Selector))
		fmt.Fprintf(out, "Type:\t%s\n", service.Spec.Type)
		fmt.Fprintf(out, "IP:\t%s\n", service.Spec.ClusterIP)
		if len(service.Status.LoadBalancer.Ingress) > 0 {
			list := buildIngressString(service.Status.LoadBalancer.Ingress)
			fmt.Fprintf(out, "LoadBalancer Ingress:\t%s\n", list)
		}
		for i := range service.Spec.Ports {
			sp := &service.Spec.Ports[i]

			name := sp.Name
			if name == "" {
				name = "<unnamed>"
			}
			fmt.Fprintf(out, "Port:\t%s\t%d/%s\n", name, sp.Port, sp.Protocol)
			if sp.NodePort != 0 {
				fmt.Fprintf(out, "NodePort:\t%s\t%d/%s\n", name, sp.NodePort, sp.Protocol)
			}
			fmt.Fprintf(out, "Endpoints:\t%s\n", formatEndpoints(endpoints, sets.NewString(sp.Name)))
		}
		fmt.Fprintf(out, "Session Affinity:\t%s\n", service.Spec.SessionAffinity)
		if events != nil {
			DescribeEvents(events, out)
		}
		return nil
	})
}

func printPersistentVolume(pv *api.PersistentVolume, w io.Writer, withNamespace bool, wide bool, showAll bool, columnLabels []string) error {
	if withNamespace {
		return fmt.Errorf("persistentVolume is not namespaced")
	}
	name := pv.Name

	claimRefUID := ""
	if pv.Spec.ClaimRef != nil {
		claimRefUID += pv.Spec.ClaimRef.Namespace
		claimRefUID += "/"
		claimRefUID += pv.Spec.ClaimRef.Name
	}

	modesStr := api.GetAccessModesAsString(pv.Spec.AccessModes)

	aQty := pv.Spec.Capacity[api.ResourceStorage]
	aSize := aQty.String()

	if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s",
		name,
		labels.FormatLabels(pv.Labels),
		aSize, modesStr,
		pv.Status.Phase,
		claimRefUID,
		pv.Status.Reason,
		translateTimestamp(pv.CreationTimestamp),
	); err != nil {
		return err
	}
	_, err := fmt.Fprint(w, appendLabels(pv.Labels, columnLabels))
	return err
}

func (d *PersistentVolumeDescriber) Describe(namespace, name string) (string, error) {
	c := d.PersistentVolumes()

	pv, err := c.Get(name)
	if err != nil {
		return "", err
	}

	storage := pv.Spec.Capacity[api.ResourceStorage]

	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", pv.Name)
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(pv.Labels))
		fmt.Fprintf(out, "Status:\t%s\n", pv.Status.Phase)
		if pv.Spec.ClaimRef != nil {
			fmt.Fprintf(out, "Claim:\t%s\n", pv.Spec.ClaimRef.Namespace+"/"+pv.Spec.ClaimRef.Name)
		} else {
			fmt.Fprintf(out, "Claim:\t%s\n", "")
		}
		fmt.Fprintf(out, "Reclaim Policy:\t%v\n", pv.Spec.PersistentVolumeReclaimPolicy)
		fmt.Fprintf(out, "Access Modes:\t%s\n", volume.GetAccessModesAsString(pv.Spec.AccessModes))
		fmt.Fprintf(out, "Capacity:\t%s\n", storage.String())
		fmt.Fprintf(out, "Message:\t%s\n", pv.Status.Message)
		return nil
	})
}

func printService(svc *api.Service, w io.Writer, withNamespace bool, wide bool, showAll bool, columnLabels []string) error {
	name := svc.Name
	namespace := svc.Namespace

	internalIP := svc.Spec.ClusterIP
	externalIP := getServiceExternalIP(svc)

	if withNamespace {
		if _, err := fmt.Fprintf(w, "%s\t", namespace); err != nil {
			return err
		}
	}
	if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s",
		name,
		internalIP,
		externalIP,
		makePortString(svc.Spec.Ports),
		labels.FormatLabels(svc.Spec.Selector),
		translateTimestamp(svc.CreationTimestamp),
	); err != nil {
		return err
	}
	if _, err := fmt.Fprint(w, appendLabels(svc.Labels, columnLabels)); err != nil {
		return err
	}
	return nil
}

func describePod(pod *api.Pod, rcs []api.ReplicationController, events *api.EventList) (string, error) {
	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", pod.Name)
		fmt.Fprintf(out, "Namespace:\t%s\n", pod.Namespace)
		fmt.Fprintf(out, "Image(s):\t%s\n", makeImageList(&pod.Spec))
		fmt.Fprintf(out, "Node:\t%s\n", pod.Spec.NodeName+"/"+pod.Status.HostIP)
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(pod.Labels))
		if pod.DeletionTimestamp != nil {
			fmt.Fprintf(out, "Status:\tTerminating (expires %s)\n", pod.DeletionTimestamp.Time.Format(time.RFC1123Z))
			fmt.Fprintf(out, "Termination Grace Period:\t%ds\n", pod.DeletionGracePeriodSeconds)
		} else {
			fmt.Fprintf(out, "Status:\t%s\n", string(pod.Status.Phase))
		}
		fmt.Fprintf(out, "Reason:\t%s\n", pod.Status.Reason)
		fmt.Fprintf(out, "Message:\t%s\n", pod.Status.Message)
		fmt.Fprintf(out, "IP:\t%s\n", pod.Status.PodIP)
		fmt.Fprintf(out, "Replication Controllers:\t%s\n", printReplicationControllersByLabels(rcs))
		fmt.Fprintf(out, "Containers:\n")
		describeContainers(pod, out)
		if len(pod.Status.Conditions) > 0 {
			fmt.Fprint(out, "Conditions:\n  Type\tStatus\n")
			for _, c := range pod.Status.Conditions {
				fmt.Fprintf(out, "  %v \t%v \n",
					c.Type,
					c.Status)
			}
		}
		describeVolumes(pod.Spec.Volumes, out)
		if events != nil {
			DescribeEvents(events, out)
		}
		return nil
	})
}

func printNode(node *api.Node, w io.Writer, withNamespace bool, wide bool, showAll bool, columnLabels []string) error {
	if withNamespace {
		return fmt.Errorf("node is not namespaced")
	}
	conditionMap := make(map[api.NodeConditionType]*api.NodeCondition)
	NodeAllConditions := []api.NodeConditionType{api.NodeReady}
	for i := range node.Status.Conditions {
		cond := node.Status.Conditions[i]
		conditionMap[cond.Type] = &cond
	}
	var status []string
	for _, validCondition := range NodeAllConditions {
		if condition, ok := conditionMap[validCondition]; ok {
			if condition.Status == api.ConditionTrue {
				status = append(status, string(condition.Type))
			} else {
				status = append(status, "Not"+string(condition.Type))
			}
		}
	}
	if len(status) == 0 {
		status = append(status, "Unknown")
	}
	if node.Spec.Unschedulable {
		status = append(status, "SchedulingDisabled")
	}

	if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s", node.Name, labels.FormatLabels(node.Labels), strings.Join(status, ","), translateTimestamp(node.CreationTimestamp)); err != nil {
		return err
	}
	_, err := fmt.Fprint(w, appendLabels(node.Labels, columnLabels))
	return err
}

func (d *PersistentVolumeClaimDescriber) Describe(namespace, name string) (string, error) {
	c := d.PersistentVolumeClaims(namespace)

	pvc, err := c.Get(name)
	if err != nil {
		return "", err
	}

	labels := labels.FormatLabels(pvc.Labels)
	storage := pvc.Spec.Resources.Requests[api.ResourceStorage]
	capacity := ""
	accessModes := ""
	if pvc.Spec.VolumeName != "" {
		accessModes = api.GetAccessModesAsString(pvc.Status.AccessModes)
		storage = pvc.Status.Capacity[api.ResourceStorage]
		capacity = storage.String()
	}

	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", pvc.Name)
		fmt.Fprintf(out, "Namespace:\t%s\n", pvc.Namespace)
		fmt.Fprintf(out, "Status:\t%v\n", pvc.Status.Phase)
		fmt.Fprintf(out, "Volume:\t%s\n", pvc.Spec.VolumeName)
		fmt.Fprintf(out, "Labels:\t%s\n", labels)
		fmt.Fprintf(out, "Capacity:\t%s\n", capacity)
		fmt.Fprintf(out, "Access Modes:\t%s\n", accessModes)
		return nil
	})
}

func printPersistentVolumeClaim(pvc *api.PersistentVolumeClaim, w io.Writer, withNamespace bool, wide bool, showAll bool, columnLabels []string) error {
	name := pvc.Name
	namespace := pvc.Namespace

	if withNamespace {
		if _, err := fmt.Fprintf(w, "%s\t", namespace); err != nil {
			return err
		}
	}

	labels := labels.FormatLabels(pvc.Labels)
	phase := pvc.Status.Phase
	storage := pvc.Spec.Resources.Requests[api.ResourceStorage]
	capacity := ""
	accessModes := ""
	if pvc.Spec.VolumeName != "" {
		accessModes = api.GetAccessModesAsString(pvc.Status.AccessModes)
		storage = pvc.Status.Capacity[api.ResourceStorage]
		capacity = storage.String()
	}

	if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\t%s", name, labels, phase, pvc.Spec.VolumeName, capacity, accessModes, translateTimestamp(pvc.CreationTimestamp)); err != nil {
		return err
	}
	_, err := fmt.Fprint(w, appendLabels(pvc.Labels, columnLabels))
	return err
}

func describeNode(node *api.Node, pods []*api.Pod, events *api.EventList) (string, error) {
	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", node.Name)
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(node.Labels))
		fmt.Fprintf(out, "CreationTimestamp:\t%s\n", node.CreationTimestamp.Time.Format(time.RFC1123Z))
		fmt.Fprintf(out, "Phase:\t%v\n", node.Status.Phase)
		if len(node.Status.Conditions) > 0 {
			fmt.Fprint(out, "Conditions:\n  Type\tStatus\tLastHeartbeatTime\tLastTransitionTime\tReason\tMessage\n")
			fmt.Fprint(out, "  ────\t──────\t─────────────────\t──────────────────\t──────\t───────\n")
			for _, c := range node.Status.Conditions {
				fmt.Fprintf(out, "  %v \t%v \t%s \t%s \t%v \t%v\n",
					c.Type,
					c.Status,
					c.LastHeartbeatTime.Time.Format(time.RFC1123Z),
					c.LastTransitionTime.Time.Format(time.RFC1123Z),
					c.Reason,
					c.Message)
			}
		}
		var addresses []string
		for _, address := range node.Status.Addresses {
			addresses = append(addresses, address.Address)
		}
		fmt.Fprintf(out, "Addresses:\t%s\n", strings.Join(addresses, ","))
		if len(node.Status.Capacity) > 0 {
			fmt.Fprintf(out, "Capacity:\n")
			for resource, value := range node.Status.Capacity {
				fmt.Fprintf(out, " %s:\t%s\n", resource, value.String())
			}
		}

		fmt.Fprintf(out, "System Info:\n")
		fmt.Fprintf(out, " Machine ID:\t%s\n", node.Status.NodeInfo.MachineID)
		fmt.Fprintf(out, " System UUID:\t%s\n", node.Status.NodeInfo.SystemUUID)
		fmt.Fprintf(out, " Boot ID:\t%s\n", node.Status.NodeInfo.BootID)
		fmt.Fprintf(out, " Kernel Version:\t%s\n", node.Status.NodeInfo.KernelVersion)
		fmt.Fprintf(out, " OS Image:\t%s\n", node.Status.NodeInfo.OsImage)
		fmt.Fprintf(out, " Container Runtime Version:\t%s\n", node.Status.NodeInfo.ContainerRuntimeVersion)
		fmt.Fprintf(out, " Kubelet Version:\t%s\n", node.Status.NodeInfo.KubeletVersion)
		fmt.Fprintf(out, " Kube-Proxy Version:\t%s\n", node.Status.NodeInfo.KubeProxyVersion)

		if len(node.Spec.PodCIDR) > 0 {
			fmt.Fprintf(out, "PodCIDR:\t%s\n", node.Spec.PodCIDR)
		}
		if len(node.Spec.ExternalID) > 0 {
			fmt.Fprintf(out, "ExternalID:\t%s\n", node.Spec.ExternalID)
		}
		if err := describeNodeResource(pods, node, out); err != nil {
			return err
		}

		if events != nil {
			DescribeEvents(events, out)
		}
		return nil
	})
}

func printDaemonSet(ds *experimental.DaemonSet, w io.Writer, withNamespace bool, wide bool, showAll bool, columnLabels []string) error {
	name := ds.Name
	namespace := ds.Namespace

	containers := ds.Spec.Template.Spec.Containers
	var firstContainer api.Container
	if len(containers) > 0 {
		firstContainer, containers = containers[0], containers[1:]
	}

	if withNamespace {
		if _, err := fmt.Fprintf(w, "%s\t", namespace); err != nil {
			return err
		}
	}
	if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s",
		name,
		firstContainer.Name,
		firstContainer.Image,
		labels.FormatLabels(ds.Spec.Selector),
		labels.FormatLabels(ds.Spec.Template.Spec.NodeSelector),
	); err != nil {
		return err
	}
	if _, err := fmt.Fprint(w, appendLabels(ds.Labels, columnLabels)); err != nil {
		return err
	}

	// Lay out all the other containers on separate lines.
	extraLinePrefix := "\t"
	if withNamespace {
		extraLinePrefix = "\t\t"
	}
	for _, container := range containers {
		_, err := fmt.Fprintf(w, "%s%s\t%s\t%s\t%s", extraLinePrefix, container.Name, container.Image, "", "")
		if err != nil {
			return err
		}
		if _, err := fmt.Fprint(w, appendLabelTabs(columnLabels)); err != nil {
			return err
		}
	}
	return nil
}

func printNamespace(item *api.Namespace, w io.Writer, withNamespace bool, wide bool, showAll bool, columnLabels []string) error {
	if withNamespace {
		return fmt.Errorf("namespace is not namespaced")
	}

	if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s", item.Name, labels.FormatLabels(item.Labels), item.Status.Phase, translateTimestamp(item.CreationTimestamp)); err != nil {
		return err
	}
	_, err := fmt.Fprint(w, appendLabels(item.Labels, columnLabels))
	return err
}

func describeReplicationController(controller *api.ReplicationController, events *api.EventList, running, waiting, succeeded, failed int) (string, error) {
	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", controller.Name)
		fmt.Fprintf(out, "Namespace:\t%s\n", controller.Namespace)
		if controller.Spec.Template != nil {
			fmt.Fprintf(out, "Image(s):\t%s\n", makeImageList(&controller.Spec.Template.Spec))
		} else {
			fmt.Fprintf(out, "Image(s):\t%s\n", "<no template>")
		}
		fmt.Fprintf(out, "Selector:\t%s\n", labels.FormatLabels(controller.Spec.Selector))
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(controller.Labels))
		fmt.Fprintf(out, "Replicas:\t%d current / %d desired\n", controller.Status.Replicas, controller.Spec.Replicas)
		fmt.Fprintf(out, "Pods Status:\t%d Running / %d Waiting / %d Succeeded / %d Failed\n", running, waiting, succeeded, failed)
		if controller.Spec.Template != nil {
			describeVolumes(controller.Spec.Template.Spec.Volumes, out)
		}
		if events != nil {
			DescribeEvents(events, out)
		}
		return nil
	})
}

func describeSecret(secret *api.Secret) (string, error) {
	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", secret.Name)
		fmt.Fprintf(out, "Namespace:\t%s\n", secret.Namespace)
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(secret.Labels))
		fmt.Fprintf(out, "Annotations:\t%s\n", labels.FormatLabels(secret.Annotations))

		fmt.Fprintf(out, "\nType:\t%s\n", secret.Type)

		fmt.Fprintf(out, "\nData\n====\n")
		for k, v := range secret.Data {
			switch {
			case k == api.ServiceAccountTokenKey && secret.Type == api.SecretTypeServiceAccountToken:
				fmt.Fprintf(out, "%s:\t%s\n", k, string(v))
			default:
				fmt.Fprintf(out, "%s:\t%d bytes\n", k, len(v))
			}
		}

		return nil
	})
}

func describeServiceAccount(serviceAccount *api.ServiceAccount, tokens []api.Secret) (string, error) {
	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", serviceAccount.Name)
		fmt.Fprintf(out, "Namespace:\t%s\n", serviceAccount.Namespace)
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(serviceAccount.Labels))
		fmt.Fprintln(out)

		var (
			emptyHeader = "                   "
			pullHeader  = "Image pull secrets:"
			mountHeader = "Mountable secrets: "
			tokenHeader = "Tokens:            "

			pullSecretNames  = []string{}
			mountSecretNames = []string{}
			tokenSecretNames = []string{}
		)

		for _, s := range serviceAccount.ImagePullSecrets {
			pullSecretNames = append(pullSecretNames, s.Name)
		}
		for _, s := range serviceAccount.Secrets {
			mountSecretNames = append(mountSecretNames, s.Name)
		}
		for _, s := range tokens {
			tokenSecretNames = append(tokenSecretNames, s.Name)
		}

		types := map[string][]string{
			pullHeader:  pullSecretNames,
			mountHeader: mountSecretNames,
			tokenHeader: tokenSecretNames,
		}
		for header, names := range types {
			if len(names) == 0 {
				fmt.Fprintf(out, "%s\t<none>\n", header)
			} else {
				prefix := header
				for _, name := range names {
					fmt.Fprintf(out, "%s\t%s\n", prefix, name)
					prefix = emptyHeader
				}
			}
			fmt.Fprintln(out)
		}

		return nil
	})
}

func describeNamespace(namespace *api.Namespace, resourceQuotaList *api.ResourceQuotaList, limitRangeList *api.LimitRangeList) (string, error) {
	return tabbedString(func(out io.Writer) error {
		fmt.Fprintf(out, "Name:\t%s\n", namespace.Name)
		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(namespace.Labels))
		fmt.Fprintf(out, "Status:\t%s\n", string(namespace.Status.Phase))
		if resourceQuotaList != nil {
			fmt.Fprintf(out, "\n")
			DescribeResourceQuotas(resourceQuotaList, out)
		}
		if limitRangeList != nil {
			fmt.Fprintf(out, "\n")
			DescribeLimitRanges(limitRangeList, out)
		}
		return nil
	})
}