refactor monitor apis to adopt new response format

pkg/apis/v1alpha/containers/containers_handler.go

@@ -25,6 +25,9 @@ import (
 )
 
 func Register(ws *restful.WebService) {
+	ws.Route(ws.GET("/namespaces/{namespace}/pods/{podname}/containers/{containername}").To(handleContainerUnderNameSpaceAndPod).Filter(route.RouteLogging)).
+		Consumes(restful.MIME_JSON, restful.MIME_XML).
+		Produces(restful.MIME_JSON)
 	ws.Route(ws.GET("/namespaces/{namespace}/pods/{podname}/containers").To(handleContainersUnderNameSpaceAndPod).Filter(route.RouteLogging)).
 		Consumes(restful.MIME_JSON, restful.MIME_XML).
 		Produces(restful.MIME_JSON)
@@ -33,28 +36,23 @@ func Register(ws *restful.WebService) {
 		Produces(restful.MIME_JSON)
 }
 
+func handleContainerUnderNameSpaceAndPod(request *restful.Request, response *restful.Response) {
+	var resultContainer models.ResultContainer
+	resultContainer = models.FormatContainerMetrics(request.PathParameter("namespace"), request.PathParameter("podname"), request.PathParameter("containername"))
+	resultContainer.NodeName = models.GetNodeNameForPod(request.PathParameter("podname"), request.PathParameter("namespace"))
+	response.WriteAsJson(resultContainer)
+}
 func handleContainersUnderNameSpaceAndPod(request *restful.Request, response *restful.Response) {
-	var result constants.ResultMessage
-	var resultNameSpaces []models.ResultNameSpaceForContainer
-	var resultNameSpace models.ResultNameSpaceForContainer
+	var resultNameSpace constants.PageableResponse
 
 	resultNameSpace = models.FormatContainersMetrics("", request.PathParameter("namespace"), request.PathParameter("podname"))
-
-	resultNameSpaces = append(resultNameSpaces, resultNameSpace)
-
-	result.Data = resultNameSpaces
-	response.WriteAsJson(result)
+	response.WriteAsJson(resultNameSpace)
 }
 
 func handleContainersUnderNodeAndNameSpaceAndPod(request *restful.Request, response *restful.Response) {
-	var result constants.ResultMessage
-	var resultNameSpaces []models.ResultNameSpaceForContainer
-	var resultNameSpace models.ResultNameSpaceForContainer
+	var resultNameSpace constants.PageableResponse
 
 	resultNameSpace = models.FormatContainersMetrics(request.PathParameter("nodename"), request.PathParameter("namespace"), request.PathParameter("podname"))
 
-	resultNameSpaces = append(resultNameSpaces, resultNameSpace)
-
-	result.Data = resultNameSpaces
-	response.WriteAsJson(result)
+	response.WriteAsJson(resultNameSpace)
 }

pkg/apis/v1alpha/nodes/nodes_handler.go

@@ -35,32 +35,28 @@ func Register(ws *restful.WebService, subPath string) {
 }
 
 func handleNodes(request *restful.Request, response *restful.Response) {
-	var result constants.ResultMessage
-	var resultNodes []models.ResultNode
+	var result constants.PageableResponse
 	var resultNode models.ResultNode
 
 	nodes := models.GetNodes()
 
-	for _, node := range nodes {
-
+	var total_count int
+	for i, node := range nodes {
 		resultNode = models.FormatNodeMetrics(node)
-		resultNodes = append(resultNodes, resultNode)
-
+		result.Items = append(result.Items, resultNode)
+		total_count = i
 	}
+	total_count = total_count + 1
 
-	result.Data = resultNodes
+	result.TotalCount = total_count
 	response.WriteAsJson(result)
 }
 
 func handleSingleNode(request *restful.Request, response *restful.Response) {
 	nodeName := request.PathParameter("nodename")
-	var result constants.ResultMessage
-	var resultNodes []models.ResultNode
 	var resultNode models.ResultNode
 
 	resultNode = models.FormatNodeMetrics(nodeName)
-	resultNodes = append(resultNodes, resultNode)
 
-	result.Data = resultNodes
-	response.WriteAsJson(result)
+	response.WriteAsJson(resultNode)
 }

pkg/apis/v1alpha/pods/pods_handler.go

@@ -30,55 +30,75 @@ func Register(ws *restful.WebService) {
 	ws.Route(ws.GET("/pods").To(handleAllPods).Filter(route.RouteLogging)).
 		Consumes(restful.MIME_JSON, restful.MIME_XML).
 		Produces(restful.MIME_JSON)
-
+	ws.Route(ws.GET("/namespaces/{namespace}/pods/{podname}").To(handlePodUnderNameSpace).Filter(route.RouteLogging)).
+		Consumes(restful.MIME_JSON, restful.MIME_XML).
+		Produces(restful.MIME_JSON)
 	ws.Route(ws.GET("/namespaces/{namespace}/pods").To(handlePodsUnderNameSpace).Filter(route.RouteLogging)).
 		Consumes(restful.MIME_JSON, restful.MIME_XML).
 		Produces(restful.MIME_JSON)
+	ws.Route(ws.GET("/nodes/{nodename}/pods").To(handlePodsUnderNode).Filter(route.RouteLogging)).
+		Consumes(restful.MIME_JSON, restful.MIME_XML).
+		Produces(restful.MIME_JSON)
 	ws.Route(ws.GET("/nodes/{nodename}/namespaces/{namespace}/pods").To(handlePodsUnderNodeAndNameSpace).Filter(route.RouteLogging)).
 		Consumes(restful.MIME_JSON, restful.MIME_XML).
 		Produces(restful.MIME_JSON)
 }
 
 func handleAllPods(request *restful.Request, response *restful.Response) {
-	var result constants.ResultMessage
-	var resultNameSpaces []models.ResultNameSpace
-	var resultNameSpace models.ResultNameSpace
+	var result constants.PageableResponse
 
 	namespaces := models.GetNameSpaces()
 
-	for _, namespace := range namespaces {
-
-		resultNameSpace = models.FormatPodsMetrics("", namespace)
-		resultNameSpaces = append(resultNameSpaces, resultNameSpace)
-
+	var total_count int
+	for i, namespace := range namespaces {
+		result = models.FormatPodsMetrics("", namespace)
+		result.Items = append(result.Items, result)
+		total_count = i
 	}
 
-	result.Data = resultNameSpaces
+	result.TotalCount = total_count
+
 	response.WriteAsJson(result)
 }
 
 func handlePodsUnderNameSpace(request *restful.Request, response *restful.Response) {
-	var result constants.ResultMessage
-	var resultNameSpaces []models.ResultNameSpace
-	var resultNameSpace models.ResultNameSpace
+	var result constants.PageableResponse
 
-	resultNameSpace = models.FormatPodsMetrics("", request.PathParameter("namespace"))
+	result = models.FormatPodsMetrics("", request.PathParameter("namespace"))
 
-	resultNameSpaces = append(resultNameSpaces, resultNameSpace)
-
-	result.Data = resultNameSpaces
 	response.WriteAsJson(result)
 }
+func handlePodsUnderNode(request *restful.Request, response *restful.Response) {
+	var result constants.PageableResponse
+	var resultNameSpace constants.PageableResponse
+	namespaces := models.GetNameSpaces()
+
+	var total_count int
+	for _, namespace := range namespaces {
+		resultNameSpace = models.FormatPodsMetrics(request.PathParameter("nodename"), namespace)
+
+		var sub_total_count int
+		for j, pod := range resultNameSpace.Items {
+			result.Items = append(result.Items, pod)
+			sub_total_count = j
+		}
+		total_count += sub_total_count
+	}
+	result.TotalCount = total_count
+	response.WriteAsJson(result)
+}
+func handlePodUnderNameSpace(request *restful.Request, response *restful.Response) {
+	var resultPod models.ResultPod
+
+	resultPod = models.FormatPodMetrics(request.PathParameter("namespace"), request.PathParameter("podname"))
+
+	response.WriteAsJson(resultPod)
+}
 
 func handlePodsUnderNodeAndNameSpace(request *restful.Request, response *restful.Response) {
-	var result constants.ResultMessage
-	var resultNameSpaces []models.ResultNameSpace
-	var resultNameSpace models.ResultNameSpace
+	var result constants.PageableResponse
 
-	resultNameSpace = models.FormatPodsMetrics(request.PathParameter("nodename"), request.PathParameter("namespace"))
+	result = models.FormatPodsMetrics(request.PathParameter("nodename"), request.PathParameter("namespace"))
 
-	resultNameSpaces = append(resultNameSpaces, resultNameSpace)
-
-	result.Data = resultNameSpaces
 	response.WriteAsJson(result)
 }

pkg/client/heapsterclient.go

@@ -55,3 +55,23 @@ func GetHeapsterMetrics(url string) string {
 	}
 	return ""
 }
+func GetCAdvisorMetrics(nodeAddr string) string {
+
+	response, err := http.Get("http://" + nodeAddr + ":10255/stats/summary")
+	if err != nil {
+		glog.Error(err)
+		os.Exit(1)
+	} else {
+		defer response.Body.Close()
+
+		contents, err := ioutil.ReadAll(response.Body)
+
+		if err != nil {
+			glog.Error(err)
+			os.Exit(1)
+		}
+
+		return string(contents)
+	}
+	return ""
+}

pkg/models/containers.go

@@ -8,6 +8,7 @@ import (
 	"github.com/golang/glog"
 
 	"kubesphere.io/kubesphere/pkg/client"
+	"kubesphere.io/kubesphere/pkg/constants"
 
 	ksutil "kubesphere.io/kubesphere/pkg/util"
 
@@ -15,18 +16,8 @@ import (
 	"strconv"
 )
 
-type ResultNameSpaceForContainer struct {
-	NameSpace string                  `json:"namespace"`
-	PodsCount string                  `json:"pods_count"`
-	Pods      []ResultPodForContainer `json:"pods"`
-}
-
-type ResultPodForContainer struct {
-	PodName         string            `json:"pod_name"`
-	ContainersCount string            `json:"containers_count"`
-	Containers      []ResultContainer `json:"containers"`
-}
 type ResultContainer struct {
+	NodeName      string            `json:"node_name"`
 	ContainerName string            `json:"container_name"`
 	CPURequest    string            `json:"cpu_request"`
 	CPULimit      string            `json:"cpu_limit"`
@@ -61,128 +52,100 @@ func GetContainers(namespace, podName string) []string {
 	return containers
 }
 
-func FormatContainersMetrics(nodeName, namespace, podName string) ResultNameSpaceForContainer {
-	var resultNameSpaceForContainer ResultNameSpaceForContainer
-	var resultPodsForContainer []ResultPodForContainer
+func FormatContainersMetrics(nodeName, namespace, podName string) constants.PageableResponse {
 
-	var pods []string
-	if nodeName == "" {
-		pods = GetPods(namespace)
-	} else {
-		pods = GetPodsForNode(nodeName, namespace)
-	}
-
-	resultNameSpaceForContainer.NameSpace = namespace
-	resultNameSpaceForContainer.PodsCount = strconv.Itoa(len(pods))
-
-	if podName != "" {
-		var resultPodForContainer ResultPodForContainer
-		resultPodForContainer.PodName = podName
-		resultPodForContainer = FormatPodMetricsWithContainers(namespace, podName)
-		resultPodsForContainer = append(resultPodsForContainer, resultPodForContainer)
-		resultNameSpaceForContainer.Pods = resultPodsForContainer
-		return resultNameSpaceForContainer
-	}
-	for _, pod := range pods {
-		var resultPodForContainer ResultPodForContainer
-		resultPodForContainer.PodName = pod
-		resultPodForContainer = FormatPodMetricsWithContainers(namespace, pod)
-		resultPodsForContainer = append(resultPodsForContainer, resultPodForContainer)
-	}
-	resultNameSpaceForContainer.Pods = resultPodsForContainer
-	return resultNameSpaceForContainer
-}
-
-func FormatPodMetricsWithContainers(namespace, pod string) ResultPodForContainer {
-
-	var resultPod ResultPodForContainer
+	var result constants.PageableResponse
+	var resultContainer ResultContainer
 	var containers []string
-	var resultContainers []ResultContainer
+	var total_count int
+	containers = GetContainers(namespace, podName)
 
-	resultPod.PodName = pod
-	containers = GetContainers(namespace, pod)
-	resultPod.ContainersCount = strconv.Itoa(len(containers))
-
-	for _, container := range containers {
-		var resultContainer ResultContainer
-		var containerCPUMetrics []CPUContainer
-		var containerMemMetrics []MemoryContainer
-		var cpuMetrics CPUContainer
-		var memMetrics MemoryContainer
-
-		resultContainer.ContainerName = container
-		cpuRequest := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/containers/" + container + "/metrics/cpu/request")
-		cpuRequest = ksutil.JsonRawMessage(cpuRequest).Find("metrics").ToList()[0].Find("value").ToString()
-		if cpuRequest != "" && cpuRequest != "0" {
-			resultContainer.CPURequest = cpuRequest
+	for i, container := range containers {
+		resultContainer = FormatContainerMetrics(namespace, podName, container)
+		if nodeName != "" {
+			resultContainer.NodeName = nodeName
 		} else {
-			resultContainer.CPURequest = "inf"
+			resultContainer.NodeName = GetNodeNameForPod(podName, namespace)
 		}
-
-		cpuLimit := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/containers/" + container + "/metrics/cpu/limit")
-		cpuLimit = ksutil.JsonRawMessage(cpuLimit).Find("metrics").ToList()[0].Find("value").ToString()
-		if cpuLimit != "" && cpuLimit != "0" {
-			resultContainer.CPULimit = cpuLimit
-		} else {
-			resultContainer.CPULimit = "inf"
-		}
-		memoryRequest := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/containers/" + container + "/metrics/memory/request")
-		resultContainer.MemoryRequest = ConvertMemory(memoryRequest)
-
-		memoryLimit := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/containers/" + container + "/metrics/memory/limit")
-		resultContainer.MemoryLimit = ConvertMemory(memoryLimit)
-
-		cpuUsageRate := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/containers/" + container + "/metrics/cpu/usage_rate")
-		if cpuUsageRate != "" {
-			metrics := ksutil.JsonRawMessage(cpuUsageRate).Find("metrics").ToList()
-
-			for _, metric := range metrics {
-				timestamp := metric.Find("timestamp")
-				cpu_utilization, _ := strconv.ParseFloat(metric.Find("value").ToString(), 64)
-				cpuMetrics.TimeStamp = timestamp.ToString()
-				cpuMetrics.CPUUtilization = fmt.Sprintf("%.3f", cpu_utilization/1000)
-				if resultContainer.CPULimit != "inf" {
-					cpu_limit, _ := strconv.ParseFloat(resultContainer.CPULimit, 64)
-					cpuMetrics.UsedCPU = fmt.Sprintf("%.1f", cpu_limit*cpu_utilization/1000)
-				} else {
-					cpuMetrics.UsedCPU = "inf"
-				}
-				glog.Info("pod " + pod + " has limit cpu " + resultContainer.CPULimit + " CPU utilization " + fmt.Sprintf("%.3f", cpu_utilization/1000) + " at time" + timestamp.ToString())
-				containerCPUMetrics = append(containerCPUMetrics, cpuMetrics)
-			}
-
-		}
-
-		resultContainer.CPU = containerCPUMetrics
-
-		var used_mem_bytes float64
-
-		memUsage := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/containers/" + container + "/metrics/memory/usage")
-		if memUsage != "" {
-			metrics := ksutil.JsonRawMessage(memUsage).Find("metrics").ToList()
-
-			for _, metric := range metrics {
-				timestamp := metric.Find("timestamp")
-				used_mem_bytes, _ = strconv.ParseFloat(metric.Find("value").ToString(), 64)
-				used_mem := used_mem_bytes / 1024 / 1024
-				memMetrics.TimeStamp = timestamp.ToString()
-				memMetrics.UsedMemory = fmt.Sprintf("%.1f", used_mem)
-				if resultContainer.MemoryLimit != "inf" {
-					mem_limit, _ := strconv.ParseFloat(resultContainer.MemoryLimit, 64)
-					memMetrics.MemoryUtilization = fmt.Sprintf("%.3f", used_mem/mem_limit)
-				} else {
-					memMetrics.MemoryUtilization = "inf"
-				}
-
-				glog.Info("pod " + pod + " has limit mem " + resultContainer.MemoryLimit + " mem utilization " + memMetrics.MemoryUtilization + " at time" + timestamp.ToString())
-				containerMemMetrics = append(containerMemMetrics, memMetrics)
-			}
-		}
-
-		resultContainer.Memory = containerMemMetrics
-		resultContainers = append(resultContainers, resultContainer)
+		result.Items = append(result.Items, resultContainer)
+		total_count = i
 	}
-	resultPod.Containers = resultContainers
+	result.TotalCount = total_count + 1
 
-	return resultPod
+	return result
+}
+
+func FormatContainerMetrics(namespace, podName, containerName string) ResultContainer {
+	var resultContainer ResultContainer
+	var containerCPUMetrics []CPUContainer
+	var containerMemMetrics []MemoryContainer
+	var cpuMetrics CPUContainer
+	var memMetrics MemoryContainer
+
+	resultContainer.ContainerName = containerName
+	cpuRequest := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + podName + "/containers/" + containerName + "/metrics/cpu/request")
+	cpuRequest = ksutil.JsonRawMessage(cpuRequest).Find("metrics").ToList()[0].Find("value").ToString()
+	if cpuRequest != "" && cpuRequest != "0" {
+		resultContainer.CPURequest = cpuRequest
+	} else {
+		resultContainer.CPURequest = "inf"
+	}
+
+	cpuLimit := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + podName + "/containers/" + containerName + "/metrics/cpu/limit")
+	cpuLimit = ksutil.JsonRawMessage(cpuLimit).Find("metrics").ToList()[0].Find("value").ToString()
+	if cpuLimit != "" && cpuLimit != "0" {
+		resultContainer.CPULimit = cpuLimit
+	} else {
+		resultContainer.CPULimit = "inf"
+	}
+	memoryRequest := ksutil.JsonRawMessage(client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + podName + "/containers/" + containerName + "/metrics/memory/request")).Find("metrics").ToList()[0].Find("value").ToString()
+	resultContainer.MemoryRequest = ConvertMemory(memoryRequest)
+
+	memoryLimit := ksutil.JsonRawMessage(client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + podName + "/containers/" + containerName + "/metrics/memory/limit")).Find("metrics").ToList()[0].Find("value").ToString()
+	resultContainer.MemoryLimit = ConvertMemory(memoryLimit)
+
+	cpuUsageRate := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + podName + "/containers/" + containerName + "/metrics/cpu/usage_rate")
+	if cpuUsageRate != "" {
+		metrics := ksutil.JsonRawMessage(cpuUsageRate).Find("metrics").ToList()
+
+		for _, metric := range metrics {
+			timestamp := metric.Find("timestamp")
+			cpu_utilization, _ := strconv.ParseFloat(ConvertCPUUsageRate(metric.Find("value").ToString()), 64)
+			cpuMetrics.TimeStamp = timestamp.ToString()
+			cpuMetrics.CPUUtilization = fmt.Sprintf("%.3f", cpu_utilization)
+			if resultContainer.CPULimit != "inf" {
+				cpu_limit, _ := strconv.ParseFloat(resultContainer.CPULimit, 64)
+				cpuMetrics.UsedCPU = fmt.Sprintf("%.1f", cpu_limit*cpu_utilization)
+			} else {
+				cpuMetrics.UsedCPU = "inf"
+			}
+			glog.Info("pod " + podName + " has limit cpu " + resultContainer.CPULimit + " CPU utilization " + fmt.Sprintf("%.3f", cpu_utilization) + " at time" + timestamp.ToString())
+			containerCPUMetrics = append(containerCPUMetrics, cpuMetrics)
+		}
+
+	}
+
+	resultContainer.CPU = containerCPUMetrics
+
+	var used_mem_bytes float64
+
+	memUsage := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + podName + "/containers/" + containerName + "/metrics/memory/usage")
+	if memUsage != "" {
+		metrics := ksutil.JsonRawMessage(memUsage).Find("metrics").ToList()
+
+		for _, metric := range metrics {
+			timestamp := metric.Find("timestamp")
+			used_mem_bytes, _ = strconv.ParseFloat(metric.Find("value").ToString(), 64)
+			used_mem := used_mem_bytes / 1024 / 1024
+			memMetrics.TimeStamp = timestamp.ToString()
+			memMetrics.UsedMemory = fmt.Sprintf("%.1f", used_mem)
+			memMetrics.MemoryUtilization = fmt.Sprintf("%.3f", CalculateMemoryUsage(memoryRequest, memoryLimit, metric.Find("value").ToString()))
+			glog.Info("pod " + podName + " has limit mem " + resultContainer.MemoryLimit + " mem utilization " + memMetrics.MemoryUtilization + " at time" + timestamp.ToString())
+			containerMemMetrics = append(containerMemMetrics, memMetrics)
+		}
+	}
+
+	resultContainer.Memory = containerMemMetrics
+
+	return resultContainer
 }

pkg/models/nodes.go

@@ -23,24 +23,38 @@ import (
 
 	"github.com/golang/glog"
 
-	"kubesphere.io/kubesphere/pkg/client"
-
-	ksutil "kubesphere.io/kubesphere/pkg/util"
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"kubesphere.io/kubesphere/pkg/client"
+	ksutil "kubesphere.io/kubesphere/pkg/util"
 
 	"fmt"
 	"strconv"
 )
 
-type ResultNodes struct {
-	Nodes []ResultNode `json:"nodes"`
-}
+const (
+	//status: "False"
+	OutOfDisk = "OutOfDisk"
+	//status: "False"
+	MemoryPressure = "MemoryPressure"
+	//status: "False"
+	DiskPressure = "DiskPressure"
+	//status: "False"
+	PIDPressure = "PIDPressure"
+	//status: "True"
+	KubeletReady = "Ready"
+)
+
 type ResultNode struct {
-	NodeName     string       `json:"node_name"`
-	PodsCount    string       `json:"pods_count"`
-	PodsCapacity string       `json:"pods_capacity"`
-	CPU          []CPUNode    `json:"cpu"`
-	Memory       []MemoryNode `json:"memory"`
+	NodeName      string       `json:"node_name"`
+	NodeStatus    string       `json:"node_status"`
+	PodsCount     string       `json:"pods_count"`
+	PodsCapacity  string       `json:"pods_capacity"`
+	UsedFS        string       `json:"used_fs"`
+	TotalFS       string       `json:"total_fs"`
+	FSUtilization string       `json:"fs_utilization"`
+	CPU           []CPUNode    `json:"cpu"`
+	Memory        []MemoryNode `json:"memory"`
 }
 
 type CPUNode struct {
@@ -98,13 +112,13 @@ func FormatNodeMetrics(nodeName string) ResultNode {
 
 		for _, metric := range metrics {
 			timestamp := metric.Find("timestamp")
-			cpu_utilization, _ := strconv.ParseFloat(metric.Find("value").ToString(), 64)
+			cpu_utilization, _ := strconv.ParseFloat(ConvertCPUUsageRate(metric.Find("value").ToString()), 64)
 			cpuMetrics.TimeStamp = timestamp.ToString()
 			cpuMetrics.TotalCPU = fmt.Sprintf("%.1f", total_cpu)
-			cpuMetrics.CPUUtilization = fmt.Sprintf("%.3f", cpu_utilization/1000)
-			cpuMetrics.UsedCPU = fmt.Sprintf("%.1f", total_cpu*cpu_utilization/1000)
+			cpuMetrics.CPUUtilization = fmt.Sprintf("%.3f", cpu_utilization)
+			cpuMetrics.UsedCPU = fmt.Sprintf("%.1f", total_cpu*cpu_utilization)
 
-			glog.Info("node " + nodeName + " has total cpu " + fmt.Sprintf("%.1f", total_cpu) + " CPU utilization " + fmt.Sprintf("%.3f", cpu_utilization/1000) + " at time" + timestamp.ToString())
+			glog.Info("node " + nodeName + " has total cpu " + fmt.Sprintf("%.1f", total_cpu) + " CPU utilization " + fmt.Sprintf("%.3f", cpu_utilization) + " at time" + timestamp.ToString())
 			nodeCPUMetrics = append(nodeCPUMetrics, cpuMetrics)
 		}
 
@@ -139,25 +153,65 @@ func FormatNodeMetrics(nodeName string) ResultNode {
 	}
 
 	resultNode.NodeName = nodeName
-	resultNode.PodsCount = strconv.Itoa(len(GetPodsForNode(nodeName,"")))
-	resultNode.PodsCapacity = getPodsCapacity(nodeName)
+	resultNode.PodsCount = strconv.Itoa(len(GetPodsForNode(nodeName, "")))
+	nodeResObj := getNodeResObj(nodeName)
+	resultNode.PodsCapacity = nodeResObj.Status.Capacity.Pods().String()
+	resultNode.NodeStatus = getNodeStatus(nodeResObj)
+	resultNode.UsedFS, resultNode.TotalFS, resultNode.FSUtilization = getNodeFileSystemStatus(nodeResObj)
 	resultNode.CPU = nodeCPUMetrics
 	resultNode.Memory = nodeMemMetrics
 
 	return resultNode
 }
 
-func getPodsCapacity(nodeName string) string {
-	var pods_capacity string
+func getNodeResObj(nodeName string) *v1.Node {
 	cli := client.NewK8sClient()
 
-	node, err := cli.CoreV1().Nodes().Get(nodeName,metav1.GetOptions{})
+	node, err := cli.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{})
 
 	if err != nil {
 		glog.Error(err)
 	} else {
-		pods_capacity = node.Status.Capacity.Pods().String()
+		return node
 	}
-	fmt.Println(pods_capacity)
-	return pods_capacity
-}
+	return nil
+}
+
+func getNodeStatus(node *v1.Node) string {
+
+	status := "Ready"
+	conditions := node.Status.Conditions
+	for _, cond := range conditions {
+		if cond.Type == DiskPressure && cond.Status == "True" {
+			status = "NotReady"
+			break
+		}
+		if cond.Type == OutOfDisk && cond.Status == "True" {
+			status = "NotReady"
+			break
+		}
+		if cond.Type == MemoryPressure && cond.Status == "True" {
+			status = "NotReady"
+		}
+		if cond.Type == PIDPressure && cond.Status == "True" {
+			status = "NotReady"
+			break
+		}
+		if cond.Type == KubeletReady && cond.Status == "False" {
+			status = "NotReady"
+			break
+		}
+	}
+	return status
+}
+
+func getNodeFileSystemStatus(node *v1.Node) (string, string, string) {
+
+	nodeMetricsAsStr := client.GetCAdvisorMetrics(node.Annotations["alpha.kubernetes.io/provided-node-ip"])
+	if nodeMetricsAsStr != "" {
+		usedBytesAsStr, _ := strconv.ParseFloat(ksutil.JsonRawMessage(nodeMetricsAsStr).Find("node").Find("fs").Find("usedBytes").ToString(), 64)
+		capacityBytesAsStr, _ := strconv.ParseFloat(ksutil.JsonRawMessage(nodeMetricsAsStr).Find("node").Find("fs").Find("capacityBytes").ToString(), 64)
+		return fmt.Sprintf("%.1f", usedBytesAsStr/1024/1024/1024), fmt.Sprintf("%.1f", capacityBytesAsStr/1024/1024/1024), fmt.Sprintf("%.3f", usedBytesAsStr/capacityBytesAsStr)
+	}
+	return "", "", ""
+}

pkg/models/pods.go

@@ -15,18 +15,14 @@ import (
 	"strconv"
 
 	"k8s.io/apimachinery/pkg/apis/meta/v1"
+	"kubesphere.io/kubesphere/pkg/constants"
+	"math"
 )
 
-type ResultNameSpaces struct {
-	NameSpaces []ResultNameSpace `json:"namespaces"`
-}
-type ResultNameSpace struct {
-	NameSpace string      `json:"namespace"`
-	PodsCount string      `json:"pods_count"`
-	Pods      []ResultPod `json:"pods"`
-}
 type ResultPod struct {
 	PodName       string      `json:"pod_name"`
+	NameSpace     string      `json:"namespace"`
+	NodeName      string      `json:"node_name"`
 	CPURequest    string      `json:"cpu_request"`
 	CPULimit      string      `json:"cpu_limit"`
 	MemoryRequest string      `json:"mem_request"`
@@ -88,9 +84,9 @@ func GetPodsForNode(nodeName, namespace string) []string {
 	return pods
 }
 
-func FormatPodsMetrics(nodeName, namespace string) ResultNameSpace {
-	var resultNameSpace ResultNameSpace
-	var resultPods []ResultPod
+func FormatPodsMetrics(nodeName, namespace string) constants.PageableResponse {
+	var result constants.PageableResponse
+
 	var resultPod ResultPod
 	var pods []string
 	if nodeName == "" {
@@ -99,15 +95,19 @@ func FormatPodsMetrics(nodeName, namespace string) ResultNameSpace {
 		pods = GetPodsForNode(nodeName, namespace)
 	}
 
-	resultNameSpace.NameSpace = namespace
-	resultNameSpace.PodsCount = strconv.Itoa(len(pods))
-
-	for _, pod := range pods {
+	var total_count int
+	for i, pod := range pods {
 		resultPod = FormatPodMetrics(namespace, pod)
-		resultPods = append(resultPods, resultPod)
+		if nodeName != "" {
+			resultPod.NodeName = nodeName
+		} else {
+			resultPod.NodeName = GetNodeNameForPod(pod, namespace)
+		}
+		result.Items = append(result.Items, resultPod)
+		total_count = i
 	}
-	resultNameSpace.Pods = resultPods
-	return resultNameSpace
+	result.TotalCount = total_count + 1
+	return result
 }
 
 func FormatPodMetrics(namespace, pod string) ResultPod {
@@ -119,6 +119,7 @@ func FormatPodMetrics(namespace, pod string) ResultPod {
 	var memMetrics MemoryPod
 
 	resultPod.PodName = pod
+	resultPod.NameSpace = namespace
 	cpuRequest := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/metrics/cpu/request")
 	cpuRequest = ksutil.JsonRawMessage(cpuRequest).Find("metrics").ToList()[0].Find("value").ToString()
 	if cpuRequest != "" && cpuRequest != "0" {
@@ -134,10 +135,10 @@ func FormatPodMetrics(namespace, pod string) ResultPod {
 	} else {
 		resultPod.CPULimit = "inf"
 	}
-	memoryRequest := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/metrics/memory/request")
+	memoryRequest := ksutil.JsonRawMessage(client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/metrics/memory/request")).Find("metrics").ToList()[0].Find("value").ToString()
 	resultPod.MemoryRequest = ConvertMemory(memoryRequest)
 
-	memoryLimit := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/metrics/memory/limit")
+	memoryLimit := ksutil.JsonRawMessage(client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/metrics/memory/limit")).Find("metrics").ToList()[0].Find("value").ToString()
 	resultPod.MemoryLimit = ConvertMemory(memoryLimit)
 
 	cpuUsageRate := client.GetHeapsterMetrics("/namespaces/" + namespace + "/pods/" + pod + "/metrics/cpu/usage_rate")
@@ -146,16 +147,16 @@ func FormatPodMetrics(namespace, pod string) ResultPod {
 
 		for _, metric := range metrics {
 			timestamp := metric.Find("timestamp")
-			cpu_utilization, _ := strconv.ParseFloat(metric.Find("value").ToString(), 64)
+			cpu_utilization, _ := strconv.ParseFloat(ConvertCPUUsageRate(metric.Find("value").ToString()), 64)
 			cpuMetrics.TimeStamp = timestamp.ToString()
-			cpuMetrics.CPUUtilization = fmt.Sprintf("%.3f", cpu_utilization/1000)
+			cpuMetrics.CPUUtilization = fmt.Sprintf("%.3f", cpu_utilization)
 			if resultPod.CPULimit != "inf" {
 				cpu_limit, _ := strconv.ParseFloat(resultPod.CPULimit, 64)
-				cpuMetrics.UsedCPU = fmt.Sprintf("%.1f", cpu_limit*cpu_utilization/1000)
+				cpuMetrics.UsedCPU = fmt.Sprintf("%.1f", cpu_limit*cpu_utilization)
 			} else {
 				cpuMetrics.UsedCPU = "inf"
 			}
-			glog.Info("pod " + pod + " has limit cpu " + resultPod.CPULimit + " CPU utilization " + fmt.Sprintf("%.3f", cpu_utilization/1000) + " at time" + timestamp.ToString())
+			glog.Info("pod " + pod + " has limit cpu " + resultPod.CPULimit + " CPU utilization " + fmt.Sprintf("%.3f", cpu_utilization) + " at time" + timestamp.ToString())
 			podCPUMetrics = append(podCPUMetrics, cpuMetrics)
 		}
 
@@ -175,12 +176,7 @@ func FormatPodMetrics(namespace, pod string) ResultPod {
 			used_mem := used_mem_bytes / 1024 / 1024
 			memMetrics.TimeStamp = timestamp.ToString()
 			memMetrics.UsedMemory = fmt.Sprintf("%.1f", used_mem)
-			if resultPod.MemoryLimit != "inf" {
-				mem_limit, _ := strconv.ParseFloat(resultPod.MemoryLimit, 64)
-				memMetrics.MemoryUtilization = fmt.Sprintf("%.3f", used_mem/mem_limit)
-			} else {
-				memMetrics.MemoryUtilization = "inf"
-			}
+			memMetrics.MemoryUtilization = fmt.Sprintf("%.3f", CalculateMemoryUsage(memoryRequest, memoryLimit, metric.Find("value").ToString()))
 
 			glog.Info("pod " + pod + " has limit mem " + resultPod.MemoryLimit + " mem utilization " + memMetrics.MemoryUtilization + " at time" + timestamp.ToString())
 			podMemMetrics = append(podMemMetrics, memMetrics)
@@ -195,11 +191,8 @@ func ConvertMemory(memBytes string) string {
 	var mem string
 
 	if memBytes != "" {
-		memMetric := ksutil.JsonRawMessage(memBytes).Find("metrics").ToList()[0].Find("value").ToString()
-
-		if memMetric != "" && memMetric != "0" {
-
-			memBytes, error := strconv.ParseFloat(memMetric, 64)
+		if memBytes != "" && memBytes != "0" {
+			memBytes, error := strconv.ParseFloat(memBytes, 64)
 			if error == nil {
 				mem = fmt.Sprintf("%.3f", memBytes/1024/1024)
 			} else {
@@ -215,7 +208,65 @@ func ConvertMemory(memBytes string) string {
 	return mem
 }
 
-func getNodeNameForPod(podName, namespace string) string {
+func CalculateMemoryUsage(requestMem, limitMem, usedMem string) float64 {
+	var requestMemInBytes, limitMemInBytes, usedMemInBytes, memUsage float64
+	if requestMem != "" && requestMem != "0" && requestMem != "inf" {
+		requestMemInBytes, _ = strconv.ParseFloat(requestMem, 64)
+	} else {
+		glog.Info("memory request is not set")
+		requestMemInBytes = 0
+	}
+	if limitMem != "" && limitMem != "0" && limitMem != "inf" {
+		limitMemInBytes, _ = strconv.ParseFloat(limitMem, 64)
+	} else {
+		glog.Info("memory limit is not set")
+		limitMemInBytes = 0
+	}
+	if usedMem != "" && usedMem != "0" {
+		usedMemInBytes, _ = strconv.ParseFloat(usedMem, 64)
+	} else {
+		usedMemInBytes = 0
+	}
+
+	if usedMemInBytes > 0 {
+		if requestMemInBytes > 0 && limitMemInBytes > 0 {
+			if usedMemInBytes > requestMemInBytes {
+				glog.Info("used memory is higher than memory request")
+				memUsage = usedMemInBytes / limitMemInBytes
+			} else {
+				memUsage = usedMemInBytes / requestMemInBytes
+			}
+		} else if requestMemInBytes > 0 && limitMemInBytes == 0 {
+			if usedMemInBytes > requestMemInBytes {
+				glog.Info("used memory is higher than memory request")
+				memUsage = 0
+			} else {
+				memUsage = usedMemInBytes / requestMemInBytes
+			}
+		} else if requestMemInBytes == 0 && limitMemInBytes > 0 {
+			if usedMemInBytes <= limitMemInBytes {
+				memUsage = usedMemInBytes / limitMemInBytes
+			}
+		} else {
+			memUsage = 0
+		}
+	} else {
+		memUsage = 0
+	}
+	return memUsage
+}
+
+func ConvertCPUUsageRate(cpuUsageRate string) string {
+	if cpuUsageRate != "" && cpuUsageRate != "0" {
+		rate, _ := strconv.ParseFloat(cpuUsageRate, 64)
+		rateBase := math.Pow10(strings.Count(cpuUsageRate, "") - 1)
+		return fmt.Sprintf("%.3f", rate/rateBase)
+	} else {
+		return "0"
+	}
+}
+
+func GetNodeNameForPod(podName, namespace string) string {
 	var nodeName string
 	cli := client.NewK8sClient()