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kubernetes/pkg/metrics/kubelet_metrics.go
Vishnu kannan c7de580623 Update the Metrics test to only require the presense of a list of needed 
metrics, and not fail if any new metrics are added.

Signed-off-by: Vishnu kannan <vishnuk@google.com>
2016-01-25 17:24:07 -08:00

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/*
Copyright 2015 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package metrics
import (
"fmt"
"k8s.io/kubernetes/pkg/util/sets"
"github.com/prometheus/common/model"
)
var NecessaryKubeletMetrics = map[string][]string{
"cadvisor_version_info": {"cadvisorRevision", "cadvisorVersion", "dockerVersion", "kernelVersion", "osVersion"},
"container_cpu_system_seconds_total": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_cpu_usage_seconds_total": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name", "cpu"},
"container_cpu_user_seconds_total": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_io_current": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_io_time_seconds_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_io_time_weighted_seconds_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_limit_bytes": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_read_seconds_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_reads_merged_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_reads_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_sector_reads_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_sector_writes_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_usage_bytes": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_write_seconds_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_writes_merged_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_fs_writes_total": {"device", "id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_last_seen": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_memory_cache": {},
"container_memory_rss": {},
"container_memory_failcnt": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_memory_failures_total": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name", "scope", "type"},
"container_memory_usage_bytes": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_memory_working_set_bytes": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_receive_bytes_total": {"id", "interface", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_receive_errors_total": {"id", "image", "interface", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_receive_packets_dropped_total": {"id", "image", "interface", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_receive_packets_total": {"id", "image", "interface", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_transmit_bytes_total": {"id", "interface", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_transmit_errors_total": {"id", "interface", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_transmit_packets_dropped_total": {"id", "interface", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_network_transmit_packets_total": {"id", "interface", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_scrape_error": {},
"container_spec_cpu_shares": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_spec_memory_limit_bytes": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_spec_memory_swap_limit_bytes": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_start_time_seconds": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name"},
"container_tasks_state": {"id", "image", "kubernetes_container_name", "kubernetes_namespace", "kubernetes_pod_name", "name", "state"},
"kubelet_container_manager_latency_microseconds": {"operation_type", "quantile"},
"kubelet_container_manager_latency_microseconds_count": {"operation_type"},
"kubelet_container_manager_latency_microseconds_sum": {"operation_type"},
"kubelet_containers_per_pod_count": {"quantile"},
"kubelet_containers_per_pod_count_count": {},
"kubelet_containers_per_pod_count_sum": {},
"kubelet_docker_errors": {"operation_type"},
"kubelet_docker_operations_latency_microseconds": {"operation_type", "quantile"},
"kubelet_docker_operations_latency_microseconds_count": {"operation_type"},
"kubelet_docker_operations_latency_microseconds_sum": {"operation_type"},
"kubelet_generate_pod_status_latency_microseconds": {"quantile"},
"kubelet_generate_pod_status_latency_microseconds_count": {},
"kubelet_generate_pod_status_latency_microseconds_sum": {},
"kubelet_pleg_relist_latency_microseconds": {"quantile"},
"kubelet_pleg_relist_latency_microseconds_sum": {},
"kubelet_pleg_relist_latency_microseconds_count": {},
"kubelet_pleg_relist_interval_microseconds": {"quantile"},
"kubelet_pleg_relist_interval_microseconds_sum": {},
"kubelet_pleg_relist_interval_microseconds_count": {},
"kubelet_pod_start_latency_microseconds": {"quantile"},
"kubelet_pod_start_latency_microseconds_count": {},
"kubelet_pod_start_latency_microseconds_sum": {},
"kubelet_pod_worker_latency_microseconds": {"operation_type", "quantile"},
"kubelet_pod_worker_latency_microseconds_count": {"operation_type"},
"kubelet_pod_worker_latency_microseconds_sum": {"operation_type"},
"kubelet_pod_worker_start_latency_microseconds": {"quantile"},
"kubelet_pod_worker_start_latency_microseconds_count": {},
"kubelet_pod_worker_start_latency_microseconds_sum": {},
"kubelet_running_container_count": {},
"kubelet_running_pod_count": {},
"kubelet_sync_pods_latency_microseconds": {"quantile"},
"kubelet_sync_pods_latency_microseconds_count": {},
"kubelet_sync_pods_latency_microseconds_sum": {},
"machine_cpu_cores": {},
"machine_memory_bytes": {},
"rest_client_request_latency_microseconds": {"quantile", "url", "verb"},
"rest_client_request_latency_microseconds_count": {"url", "verb"},
"rest_client_request_latency_microseconds_sum": {"url", "verb"},
"rest_client_request_status_codes": {"code", "host", "method"},
}
var KubeletMetricsLabelsToSkip = sets.NewString(
"kubernetes_namespace",
"image",
"name",
)
type KubeletMetrics Metrics
func (m *KubeletMetrics) Equal(o KubeletMetrics) bool {
return (*Metrics)(m).Equal(Metrics(o))
}
func NewKubeletMetrics() KubeletMetrics {
result := NewMetrics()
for metric := range NecessaryKubeletMetrics {
result[metric] = make(model.Samples, 0)
}
return KubeletMetrics(result)
}
func parseKubeletMetrics(data string) (KubeletMetrics, error) {
result := NewKubeletMetrics()
if err := parseMetrics(data, NecessaryKubeletMetrics, (*Metrics)(&result), nil); err != nil {
return KubeletMetrics{}, err
}
return result, nil
}
func (g *MetricsGrabber) getMetricsFromNode(nodeName string, kubeletPort int) (string, error) {
rawOutput, err := g.client.Get().
Prefix("proxy").
Resource("nodes").
Name(fmt.Sprintf("%v:%v", nodeName, kubeletPort)).
Suffix("metrics").
Do().Raw()
if err != nil {
return "", err
}
return string(rawOutput), nil
}
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