// 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())
}
// 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)
}
}
// getPortForward handles a new restful port forward request. It determines the
// pod name and uid and then calls ServePortForward.
func (s *Server) getPortForward(request *restful.Request, response *restful.Response) {
params := getRequestParams(request)
pod, ok := s.host.GetPodByName(params.podNamespace, params.podName)
if !ok {
response.WriteError(http.StatusNotFound, fmt.Errorf("pod does not exist"))
return
}
if len(params.podUID) > 0 && pod.UID != params.podUID {
response.WriteError(http.StatusNotFound, fmt.Errorf("pod not found"))
return
}
redirect, err := s.host.GetPortForward(pod.Name, pod.Namespace, pod.UID)
if err != nil {
streaming.WriteError(err, response.ResponseWriter)
return
}
if redirect != nil {
http.Redirect(response.ResponseWriter, request.Request, redirect.String(), http.StatusFound)
return
}
portforward.ServePortForward(response.ResponseWriter,
request.Request,
s.host,
kubecontainer.GetPodFullName(pod),
params.podUID,
s.host.StreamingConnectionIdleTimeout(),
remotecommand.DefaultStreamCreationTimeout)
}
// 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)
}
}
// 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)
}
}
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)
}
// getExec handles requests to run a command inside a container.
func (s *Server) getExec(request *restful.Request, response *restful.Response) {
params := getRequestParams(request)
pod, ok := s.host.GetPodByName(params.podNamespace, params.podName)
if !ok {
response.WriteError(http.StatusNotFound, fmt.Errorf("pod does not exist"))
return
}
podFullName := kubecontainer.GetPodFullName(pod)
redirect, err := s.host.GetExec(podFullName, params.podUID, params.containerName, params.cmd, params.streamOpts)
if err != nil {
response.WriteError(streaming.HTTPStatus(err), err)
return
}
if redirect != nil {
http.Redirect(response.ResponseWriter, request.Request, redirect.String(), http.StatusFound)
return
}
remotecommand.ServeExec(response.ResponseWriter,
request.Request,
s.host,
podFullName,
params.podUID,
params.containerName,
s.host.StreamingConnectionIdleTimeout(),
remotecommand.DefaultStreamCreationTimeout,
remotecommand.SupportedStreamingProtocols)
}
// 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)
}
}
// 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))
}
// Handles deploy from file API call.
func (apiHandler *ApiHandler) handleDeployFromFile(request *restful.Request, response *restful.Response) {
deploymentSpec := new(AppDeploymentFromFileSpec)
if err := request.ReadEntity(deploymentSpec); err != nil {
handleInternalError(response, err)
return
}
isDeployed, err := DeployAppFromFile(
deploymentSpec, CreateObjectFromInfoFn, apiHandler.clientConfig)
if !isDeployed {
handleInternalError(response, err)
return
}
errorMessage := ""
if err != nil {
errorMessage = err.Error()
}
response.WriteHeaderAndEntity(http.StatusCreated, AppDeploymentFromFileResponse{
Name: deploymentSpec.Name,
Content: deploymentSpec.Content,
Error: errorMessage,
})
}
func (s *server) serveAttach(req *restful.Request, resp *restful.Response) {
containerID := req.PathParameter("containerID")
if containerID == "" {
resp.WriteError(http.StatusBadRequest, errors.New("missing required containerID path parameter"))
return
}
streamOpts, err := remotecommand.NewOptions(req.Request)
if err != nil {
resp.WriteError(http.StatusBadRequest, err)
return
}
remotecommand.ServeAttach(
resp.ResponseWriter,
req.Request,
s.runtime,
"", // unused: podName
"", // unusued: podUID
containerID,
streamOpts,
s.config.StreamIdleTimeout,
s.config.StreamCreationTimeout,
s.config.SupportedProtocols)
}
// 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)
}
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)
}
// 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)
}
// 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)))
}
// 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))
}
// 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()))
}
// 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))
}
// Handles nodes API call.
func (apiHandler *ApiHandler) handleGetNodes(request *restful.Request, response *restful.Response) {
result, err := GetNodeList(apiHandler.client)
if err != nil {
handleInternalError(response, err)
return
}
response.WriteHeaderAndEntity(http.StatusCreated, result)
}
// 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)
}
// Handle node stats API call.
func (apiHandler *ApiHandler) handleGetNodeStats(request *restful.Request, response *restful.Response) {
name := request.PathParameter("name")
result, err := GetNodeStats(name)
if err != nil {
handleInternalError(response, err)
return
}
response.WriteHeaderAndEntity(http.StatusCreated, result)
}
// Handles get secrets list API call.
func (apiHandler *ApiHandler) handleGetSecrets(request *restful.Request, response *restful.Response) {
namespace := request.PathParameter("namespace")
result, err := GetSecrets(apiHandler.client, namespace)
if err != nil {
handleInternalError(response, err)
return
}
response.WriteHeaderAndEntity(http.StatusOK, result)
}
// Handles protocol validation API call.
func (apiHandler *ApiHandler) handleProtocolValidity(request *restful.Request, response *restful.Response) {
spec := new(ProtocolValiditySpec)
if err := request.ReadEntity(spec); err != nil {
handleInternalError(response, err)
return
}
response.WriteHeaderAndEntity(http.StatusCreated, ValidateProtocol(spec))
}
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)
}
// 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)
}
// Write marshals the value to byte slice and set the Content-Type Header.
func (e entityMsgPackAccess) Write(resp *restful.Response, status int, v interface{}) error {
if v == nil {
resp.WriteHeader(status)
// do not write a nil representation
return nil
}
resp.WriteHeader(status)
return msgpack.NewEncoder(resp).Encode(v)
}
// getPods returns a list of pods bound to the Kubelet and their spec.
func (s *Server) getPods(request *restful.Request, response *restful.Response) {
pods := s.host.GetPods()
data, err := encodePods(pods)
if err != nil {
response.WriteError(http.StatusInternalServerError, err)
return
}
response.Write(data)
}