mirror of
https://github.com/vmware-tanzu/velero.git
synced 2026-01-03 11:45:20 +00:00
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
/*
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Copyright the Velero contributors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"context"
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"time"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/metrics/pkg/apis/metrics/v1beta1"
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metricsclientset "k8s.io/metrics/pkg/client/clientset/versioned"
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)
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func GetPodUsageMetrics(ctx context.Context, metricsClient *metricsclientset.Clientset, podName, namespace string, podMetricsTimeout time.Duration) (cpuUsage, memoryUsage resource.Quantity, err error) {
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ctx, cancel := context.WithTimeout(context.Background(), podMetricsTimeout)
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defer cancel()
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var podMetrics *v1beta1.PodMetrics
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err = wait.PollImmediateUntil(time.Second, func() (bool, error) {
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var err error
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podMetrics, err = metricsClient.MetricsV1beta1().PodMetricses(namespace).Get(ctx, podName, metav1.GetOptions{})
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if err != nil {
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return false, nil
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}
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return true, nil
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}, ctx.Done())
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if err != nil {
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return
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} else if podMetrics == nil {
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return cpuUsage, memoryUsage, nil
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}
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// Variables to store the max and sum of CPU and memory usage
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// For velero pod we only return the main container
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for _, container := range podMetrics.Containers {
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cpuUsage = container.Usage[corev1.ResourceCPU]
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memoryUsage = container.Usage[corev1.ResourceMemory]
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return
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}
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return
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}
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