github.com/kubewharf/katalyst-core@v0.5.3/pkg/metaserver/agent/metric/helper/pod.go (about) 1 /* 2 Copyright 2022 The Katalyst Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package helper 18 19 import ( 20 "errors" 21 "strconv" 22 23 v1 "k8s.io/api/core/v1" 24 25 "github.com/kubewharf/katalyst-core/pkg/metaserver/agent/metric/types" 26 "github.com/kubewharf/katalyst-core/pkg/metrics" 27 ) 28 29 // GetPodMetric returns the value of a pod-level metric. 30 // And the value of a pod-level metric is calculated by summing the metric values for all containers in that pod. 31 func GetPodMetric(metricsFetcher types.MetricsFetcher, emitter metrics.MetricEmitter, pod *v1.Pod, metricName string, numaID int) (float64, error) { 32 if pod == nil { 33 return 0, errors.New("nil pod") 34 } 35 36 var podMetricValue float64 37 for _, container := range pod.Spec.Containers { 38 containerMetricValue, err := GetContainerMetric(metricsFetcher, emitter, string(pod.UID), container.Name, metricName, numaID) 39 if err != nil { 40 return 0, err 41 } 42 43 podMetricValue += containerMetricValue 44 } 45 46 _ = emitter.StoreFloat64(metricsNamePodMetric, podMetricValue, metrics.MetricTypeNameRaw, 47 metrics.ConvertMapToTags(map[string]string{ 48 metricsTagKeyPodUID: string(pod.UID), 49 metricsTagKeyNumaID: strconv.Itoa(numaID), 50 metricsTagKeyMetricName: metricName, 51 })...) 52 53 return podMetricValue, nil 54 }