github.com/google/cadvisor@v0.49.1/utils/oomparser/oomexample/main.go (about)

     1  // Copyright 2014 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package main
    16  
    17  import (
    18  	"flag"
    19  
    20  	"k8s.io/klog/v2"
    21  
    22  	"github.com/google/cadvisor/utils/oomparser"
    23  )
    24  
    25  // demonstrates how to run oomparser.OomParser to get OomInstance information
    26  func main() {
    27  	klog.InitFlags(nil)
    28  	flag.Parse()
    29  	// out is a user-provided channel from which the user can read incoming
    30  	// OomInstance objects
    31  	outStream := make(chan *oomparser.OomInstance)
    32  	oomLog, err := oomparser.New()
    33  	if err != nil {
    34  		klog.Infof("Couldn't make a new oomparser. %v", err)
    35  	} else {
    36  		go oomLog.StreamOoms(outStream)
    37  		// demonstration of how to get oomLog's list of oomInstances or access
    38  		// the user-declared oomInstance channel, here called outStream
    39  		for oomInstance := range outStream {
    40  			klog.Infof("Reading the buffer. Output is %v", oomInstance)
    41  		}
    42  	}
    43  }