71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
package main
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import (
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"flag"
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"os"
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"syscall"
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"github.com/fsnotify/fsnotify"
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log "github.com/sirupsen/logrus"
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pluginapi "k8s.io/kubelet/pkg/apis/deviceplugin/v1beta1"
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)
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func main() {
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// Parse command-line arguments
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flag.CommandLine = flag.NewFlagSet(os.Args[0], flag.ExitOnError)
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flagLogLevel := flag.String("log-level", "info", "Define the logging level: error, info, debug.")
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flag.Parse()
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switch *flagLogLevel {
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case "debug":
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log.SetLevel(log.DebugLevel)
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case "info":
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log.SetLevel(log.InfoLevel)
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}
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log.Println("Starting FS watcher.")
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watcher, err := newFSWatcher(pluginapi.DevicePluginPath)
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if err != nil {
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log.Printf("Failed to created FS watcher: %s.", err)
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os.Exit(1)
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}
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defer watcher.Close()
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log.Println("Starting OS watcher.")
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sigs := newOSWatcher(syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
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restart := true
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var devicePlugin *FPGADevicePlugin
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L:
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for {
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if restart {
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devicePlugin = NewFPGADevicePlugin()
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restart = false
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}
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select {
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case update := <-devicePlugin.updateChan:
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devicePlugin.checkDeviceUpdate(update)
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case event := <-watcher.Events:
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if event.Name == pluginapi.KubeletSocket && event.Op&fsnotify.Create == fsnotify.Create {
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log.Printf("inotify: %s created, restarting.", pluginapi.KubeletSocket)
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restart = true
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}
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case err := <-watcher.Errors:
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log.Printf("inotify: %s", err)
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case s := <-sigs:
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switch s {
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case syscall.SIGHUP:
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log.Println("Received SIGHUP, restarting.")
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restart = true
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default:
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log.Printf("Received signal \"%v\", shutting down.", s)
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break L
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}
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}
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}
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}
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