// allNamespaces returns a list of all the available namespaces in the cluster.
func (a *Api) allNamespaces(request *restful.Request, response *restful.Response) {
cluster := a.manager.GetCluster()
if cluster == nil {
response.WriteError(400, errModelNotActivated)
}
response.WriteEntity(cluster.GetNamespaces())
}
func (a *Api) exportMetricsSchema(request *restful.Request, response *restful.Response) {
result := TimeseriesSchema{}
for _, label := range sinksApi.CommonLabels() {
result.CommonLabels = append(result.CommonLabels, LabelDescriptor{
Key: label.Key,
Description: label.Description,
})
}
for _, label := range sinksApi.PodLabels() {
result.PodLabels = append(result.PodLabels, LabelDescriptor{
Key: label.Key,
Description: label.Description,
})
}
for _, metric := range sinksApi.SupportedStatMetrics() {
md := MetricDescriptor{
Name: metric.Name,
Description: metric.Description,
Type: metric.Type.String(),
ValueType: metric.ValueType.String(),
Units: metric.Units.String(),
}
for _, label := range metric.Labels {
md.Labels = append(md.Labels, LabelDescriptor{
Key: label.Key,
Description: label.Description,
})
}
result.Metrics = append(result.Metrics, md)
}
response.WriteEntity(result)
}
func (a *Api) nodeMetricsList(request *restful.Request, response *restful.Response) {
selector := request.QueryParameter("labelSelector")
labelSelector, err := labels.Parse(selector)
if err != nil {
errMsg := fmt.Errorf("Error while parsing selector %v: %v", selector, err)
glog.Error(errMsg)
response.WriteError(http.StatusBadRequest, errMsg)
return
}
nodes, err := a.nodeLister.NodeCondition(func(node *kube_api.Node) bool {
if labelSelector.Empty() {
return true
}
return labelSelector.Matches(labels.Set(node.Labels))
}).List()
if err != nil {
errMsg := fmt.Errorf("Error while listing nodes: %v", err)
glog.Error(errMsg)
response.WriteError(http.StatusInternalServerError, errMsg)
return
}
res := v1alpha1.NodeMetricsList{}
for _, node := range nodes {
if m := a.getNodeMetrics(node.Name); m != nil {
res.Items = append(res.Items, *m)
}
}
response.WriteEntity(&res)
}
// namespacePodList lists all pods for which we have metrics in a particular namespace
func (a *HistoricalApi) namespacePodList(request *restful.Request, response *restful.Response) {
if resp, err := a.historicalSource.GetPodsFromNamespace(request.PathParameter("namespace-name")); err != nil {
response.WriteError(http.StatusInternalServerError, err)
} else {
response.WriteEntity(resp)
}
}
// podContainerMetrics returns a metric timeseries for a metric of the Container entity.
// freeContainerMetrics addresses only pod containers, by using the namespace-name/pod-name/container-name path.
func (a *Api) podContainerMetrics(request *restful.Request, response *restful.Response) {
cluster := a.manager.GetCluster()
// Get namespace name
namespace := request.PathParameter("namespace-name")
// Get pod name
pod := request.PathParameter("pod-name")
// Get container name
container := request.PathParameter("container-name")
// Get metric name
metric_name := request.PathParameter("metric-name")
// Get start time, parse as time.Time
req_stamp := parseRequestStartParam(request, response)
timeseries, new_stamp, err := cluster.GetPodContainerMetric(namespace, pod, container, metric_name, req_stamp)
if err != nil {
response.WriteError(http.StatusInternalServerError, err)
glog.Errorf("unable to get cluster metric: %s", err)
return
}
response.WriteEntity(exportTimeseries(timeseries, new_stamp))
}
func podMetricsInNamespaceList(a *Api, request *restful.Request, response *restful.Response, namespace string) {
selector := request.QueryParameter("labelSelector")
labelSelector, err := labels.Parse(selector)
if err != nil {
errMsg := fmt.Errorf("Error while parsing selector %v: %v", selector, err)
glog.Error(errMsg)
response.WriteError(http.StatusBadRequest, errMsg)
return
}
pods, err := a.podLister.Pods(namespace).List(labelSelector)
if err != nil {
errMsg := fmt.Errorf("Error while listing pods for selector %v: %v", selector, err)
glog.Error(errMsg)
response.WriteError(http.StatusInternalServerError, errMsg)
return
}
res := v1alpha1.PodMetricsList{}
for _, pod := range pods.Items {
if m := a.getPodMetrics(&pod); m != nil {
res.Items = append(res.Items, *m)
} else {
glog.Infof("No metrics for pod %s/%s", pod.Namespace, pod.Name)
}
}
response.WriteEntity(&res)
}
func (a *Api) podListMetrics(request *restful.Request, response *restful.Response) {
model := a.manager.GetModel()
if model == nil {
response.WriteError(400, errModelNotActivated)
return
}
batchResult, new_stamp, err := model.GetBatchPodMetric(model_api.BatchPodRequest{
NamespaceName: request.PathParameter("namespace-name"),
PodNames: strings.Split(request.PathParameter("pod-list"), ","),
MetricName: request.PathParameter("metric-name"),
Start: parseRequestParam("start", request, response),
End: parseRequestParam("end", request, response),
})
if err != nil {
response.WriteError(http.StatusInternalServerError, err)
glog.Errorf("unable to get pod list metric: %s", err)
return
}
metricResultList := types.MetricResultList{
Items: make([]types.MetricResult, len(batchResult)),
}
for i, metrics := range batchResult {
metricResultList.Items[i] = exportTimeseries(metrics, new_stamp)
}
response.WriteEntity(metricResultList)
}
// nodeSystemContainerList lists all system containers on a node for which we have metrics
func (a *HistoricalApi) nodeSystemContainerList(request *restful.Request, response *restful.Response) {
if resp, err := a.historicalSource.GetSystemContainersFromNode(request.PathParameter("node-name")); err != nil {
response.WriteError(http.StatusInternalServerError, err)
} else {
response.WriteEntity(resp)
}
}
func (a *Api) getSinks(req *restful.Request, resp *restful.Response) {
sinkUris := a.manager.SinkUris()
if sinkUris == nil {
sinkUris = make(manager.Uris, 0)
}
resp.WriteEntity(sinkUris)
}
// processMetricRequest retrieves a metric for the object at the requested key.
func (a *HistoricalApi) processMetricRequest(key core.HistoricalKey, request *restful.Request, response *restful.Response) {
start, end, err := getStartEndTimeHistorical(request)
if err != nil {
response.WriteError(http.StatusBadRequest, err)
return
}
labels, err := getLabels(request)
if err != nil {
response.WriteError(http.StatusBadRequest, err)
return
}
metricName := request.PathParameter("metric-name")
convertedMetricName := convertMetricName(metricName)
var metrics map[core.HistoricalKey][]core.TimestampedMetricValue
if labels != nil {
metrics, err = a.historicalSource.GetLabeledMetric(convertedMetricName, labels, []core.HistoricalKey{key}, start, end)
} else {
metrics, err = a.historicalSource.GetMetric(convertedMetricName, []core.HistoricalKey{key}, start, end)
}
if err != nil {
response.WriteError(http.StatusInternalServerError, err)
return
}
converted := exportTimestampedMetricValue(metrics[key])
response.WriteEntity(converted)
}
// containerPaths returns a list of all the available API paths that are available for a container.
func (a *Api) containerPaths(request *restful.Request, response *restful.Response) {
entities := []string{
"metrics/",
"stats/",
}
response.WriteEntity(entities)
}
// namespaceList lists all namespaces for which we have metrics
func (a *HistoricalApi) namespaceList(request *restful.Request, response *restful.Response) {
if resp, err := a.historicalSource.GetNamespaces(); err != nil {
response.WriteError(http.StatusInternalServerError, err)
} else {
response.WriteEntity(resp)
}
}
// nodePaths returns a list of all the available API paths that are available for a node.
func (a *Api) nodePaths(request *restful.Request, response *restful.Response) {
entities := []string{
"freecontainers/",
"metrics/",
}
response.WriteEntity(entities)
}
// namespacePaths returns a list of all the available API paths that are available for a namespace.
func (a *Api) namespacePaths(request *restful.Request, response *restful.Response) {
entities := []string{
"pods/",
"metrics/",
}
response.WriteEntity(entities)
}
// processMetricNamesRequest retrieves the available metrics for the object at the specified key.
func (a *HistoricalApi) processMetricNamesRequest(key core.HistoricalKey, response *restful.Response) {
if resp, err := a.historicalSource.GetMetricNames(key); err != nil {
response.WriteError(http.StatusInternalServerError, err)
} else {
response.WriteEntity(resp)
}
}
// allNamespaces returns a list of all the available namespaces in the model.
func (a *Api) allNamespaces(request *restful.Request, response *restful.Response) {
model := a.manager.GetModel()
if model == nil {
response.WriteError(400, errModelNotActivated)
return
}
response.WriteEntity(makeExternalEntityList(model.GetNamespaces()))
}
// allFreeContainers returns a list of all the available free containers in the cluster.
func (a *Api) allFreeContainers(request *restful.Request, response *restful.Response) {
cluster := a.manager.GetCluster()
if cluster == nil {
response.WriteError(400, errModelNotActivated)
}
node := request.PathParameter("node-name")
response.WriteEntity(cluster.GetFreeContainers(node))
}
// nodePods returns a list of all the available API paths that are available for a node.
func (a *Api) nodePods(request *restful.Request, response *restful.Response) {
model := a.manager.GetModel()
if model == nil {
response.WriteError(400, errModelNotActivated)
}
node := request.PathParameter("node-name")
response.WriteEntity(makeExternalEntityList(model.GetNodePods(node)))
}
// allEntities returns a list of all the top-level paths that are available in the API.
func (a *Api) allEntities(request *restful.Request, response *restful.Response) {
entities := []string{
"metrics/",
"namespaces/",
"nodes/",
}
response.WriteEntity(entities)
}
// availableMetrics returns a list of available metric names.
// These metric names can be used to extract metrics from the various model entities.
func (a *Api) availableMetrics(request *restful.Request, response *restful.Response) {
cluster := a.manager.GetCluster()
if cluster == nil {
response.WriteError(400, errModelNotActivated)
}
result := cluster.GetAvailableMetrics()
response.WriteEntity(result)
}
// allPods returns a list of all the available pods in the cluster.
func (a *Api) allPods(request *restful.Request, response *restful.Response) {
cluster := a.manager.GetCluster()
if cluster == nil {
response.WriteError(400, errModelNotActivated)
}
namespace := request.PathParameter("namespace-name")
response.WriteEntity(cluster.GetPods(namespace))
}
// getSpec handles spec requests against the Kubelet.
func (s *Server) getSpec(request *restful.Request, response *restful.Response) {
info, err := s.host.GetCachedMachineInfo()
if err != nil {
response.WriteError(http.StatusInternalServerError, err)
return
}
response.WriteEntity(info)
}
// availableMetrics returns a list of available metric names.
// These metric names can be used to extract metrics from the various model entities.
func (a *Api) availableMetrics(request *restful.Request, response *restful.Response) {
model := a.manager.GetModel()
if model == nil {
response.WriteError(400, errModelNotActivated)
return
}
result := model.GetAvailableMetrics()
response.WriteEntity(result)
}
// podListMetrics returns a list of metric timeseries for each for the listed nodes
func (a *HistoricalApi) podListMetrics(request *restful.Request, response *restful.Response) {
start, end, err := getStartEndTimeHistorical(request)
if err != nil {
response.WriteError(http.StatusBadRequest, err)
return
}
keys := []core.HistoricalKey{}
if request.PathParameter("pod-id-list") != "" {
for _, podId := range strings.Split(request.PathParameter("pod-id-list"), ",") {
key := core.HistoricalKey{
ObjectType: core.MetricSetTypePod,
PodId: podId,
}
keys = append(keys, key)
}
} else {
for _, podName := range strings.Split(request.PathParameter("pod-list"), ",") {
key := core.HistoricalKey{
ObjectType: core.MetricSetTypePod,
NamespaceName: request.PathParameter("namespace-name"),
PodName: podName,
}
keys = append(keys, key)
}
}
labels, err := getLabels(request)
if err != nil {
response.WriteError(http.StatusBadRequest, err)
return
}
metricName := request.PathParameter("metric-name")
convertedMetricName := convertMetricName(metricName)
var metrics map[core.HistoricalKey][]core.TimestampedMetricValue
if labels != nil {
metrics, err = a.historicalSource.GetLabeledMetric(convertedMetricName, labels, keys, start, end)
} else {
metrics, err = a.historicalSource.GetMetric(convertedMetricName, keys, start, end)
}
if err != nil {
response.WriteError(http.StatusInternalServerError, err)
return
}
result := types.MetricResultList{
Items: make([]types.MetricResult, 0, len(keys)),
}
for _, key := range keys {
result.Items = append(result.Items, exportTimestampedMetricValue(metrics[key]))
}
response.PrettyPrint(false)
response.WriteEntity(result)
}
func (a *Api) nodeMetrics(request *restful.Request, response *restful.Response) {
node := request.PathParameter("node-name")
m := a.getNodeMetrics(node)
if m == nil {
response.WriteError(http.StatusNotFound, fmt.Errorf("No metrics for ode %v", node))
return
}
response.WriteEntity(m)
}
func (a *Api) nodeMetricsList(request *restful.Request, response *restful.Response) {
res := v1alpha1.NodeMetricsList{}
for _, node := range a.metricSink.GetNodes() {
if m := a.getNodeMetrics(node); m != nil {
res.Items = append(res.Items, *m)
}
}
response.WriteEntity(&res)
}
func getFoo(request *restful.Request, response *restful.Response) {
f := Foo{
Crew: []Crew{
Crew{"Kirk", "Captain"},
Crew{"McCoy", "Doctor"},
},
}
response.WriteEntity(&f)
}
// allPodContainers returns a list of all the available pod containers in the model.
func (a *Api) allPodContainers(request *restful.Request, response *restful.Response) {
model := a.manager.GetModel()
if model == nil {
response.WriteError(400, errModelNotActivated)
return
}
namespace := request.PathParameter("namespace-name")
pod := request.PathParameter("pod-name")
response.WriteEntity(makeExternalEntityList(model.GetPodContainers(namespace, pod)))
}
func (a *Api) derivedNodeMetrics(request *restful.Request, response *restful.Response) {
model := a.manager.GetModel()
if model == nil {
response.WriteError(400, errModelNotActivated)
}
metrics, err := getNodeMetrics(model, request.PathParameter("node-name"))
if err != nil {
response.WriteError(400, err)
}
response.WriteEntity(metrics)
}
// clusterStats returns a map of StatBundles for each usage metric of the Cluster entity.
func (a *Api) clusterStats(request *restful.Request, response *restful.Response) {
model := a.manager.GetModel()
if model == nil {
response.WriteError(400, errModelNotActivated)
}
res, uptime, err := model.GetClusterStats()
if err != nil {
response.WriteError(400, err)
}
response.WriteEntity(exportStatBundle(res, uptime))
}