mirror of
https://github.com/kubernetes/node-problem-detector.git
synced 2026-03-02 17:50:34 +00:00
73 lines
2.3 KiB
Go
73 lines
2.3 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 problemdetector
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import (
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"github.com/golang/glog"
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"k8s.io/kubernetes/pkg/util/clock"
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"k8s.io/node-problem-detector/pkg/condition"
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"k8s.io/node-problem-detector/pkg/kernelmonitor"
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"k8s.io/node-problem-detector/pkg/problemclient"
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"k8s.io/node-problem-detector/pkg/util"
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)
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// ProblemDetector collects statuses from all problem daemons and update the node condition and send node event.
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type ProblemDetector interface {
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Run() error
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}
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type problemDetector struct {
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client problemclient.Client
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conditionManager condition.ConditionManager
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// TODO(random-liu): Use slices of problem daemons if multiple monitors are needed in the future
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monitor kernelmonitor.KernelMonitor
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}
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// NewProblemDetector creates the problem detector. Currently we just directly passed in the problem daemons, but
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// in the future we may want to let the problem daemons register themselves.
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func NewProblemDetector(monitor kernelmonitor.KernelMonitor, apiServerOverride, nodeName string) ProblemDetector {
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client := problemclient.NewClientOrDie(apiServerOverride, nodeName)
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return &problemDetector{
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client: client,
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conditionManager: condition.NewConditionManager(client, clock.RealClock{}),
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monitor: monitor,
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}
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}
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// Run starts the problem detector.
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func (p *problemDetector) Run() error {
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p.conditionManager.Start()
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ch, err := p.monitor.Start()
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if err != nil {
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return err
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}
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glog.Info("Problem detector started")
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for {
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select {
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case status := <-ch:
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for _, event := range status.Events {
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p.client.Eventf(util.ConvertToAPIEventType(event.Severity), status.Source, event.Reason, event.Message)
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}
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for _, condition := range status.Conditions {
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p.conditionManager.UpdateCondition(condition)
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}
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}
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}
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}
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