64 lines
1.9 KiB
Go
64 lines
1.9 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
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 podanalyzer
|
|
|
|
import (
|
|
"time"
|
|
|
|
api_v1 "k8s.io/api/core/v1"
|
|
)
|
|
|
|
type PodAnalysisResult struct {
|
|
// Total number of pods created.
|
|
Total int
|
|
// Number of pods that are running and ready.
|
|
RunningAndReady int
|
|
// Number of pods that have been in unschedulable state for UnshedulableThreshold seconds.
|
|
Unschedulable int
|
|
|
|
// TODO: Handle other scenarios like pod waiting too long for scheduler etc.
|
|
}
|
|
|
|
const (
|
|
// TODO: make it configurable
|
|
UnschedulableThreshold = 60 * time.Second
|
|
)
|
|
|
|
// AnalyzePods calculates how many pods from the list are in one of
|
|
// the meaningful (from the replica set perspective) states. This function is
|
|
// a temporary workaround against the current lack of ownerRef in pods.
|
|
func AnalyzePods(pods *api_v1.PodList, currentTime time.Time) PodAnalysisResult {
|
|
result := PodAnalysisResult{}
|
|
for _, pod := range pods.Items {
|
|
result.Total++
|
|
for _, condition := range pod.Status.Conditions {
|
|
if pod.Status.Phase == api_v1.PodRunning {
|
|
if condition.Type == api_v1.PodReady {
|
|
result.RunningAndReady++
|
|
}
|
|
} else if condition.Type == api_v1.PodScheduled &&
|
|
condition.Status == api_v1.ConditionFalse &&
|
|
condition.Reason == api_v1.PodReasonUnschedulable &&
|
|
condition.LastTransitionTime.Add(UnschedulableThreshold).Before(currentTime) {
|
|
|
|
result.Unschedulable++
|
|
}
|
|
}
|
|
}
|
|
return result
|
|
}
|