func main() {
var (
justVersion bool
address string
nameserver string
debug bool
)
flag.BoolVar(&justVersion, "version", false, "print version and exit")
flag.BoolVar(&debug, "debug", false, "output debugging info to stderr")
flag.StringVar(&address, "socket", "/run/docker/plugins/weave.sock", "socket on which to listen")
flag.StringVar(&nameserver, "nameserver", "", "nameserver to provide to containers")
flag.Parse()
if justVersion {
fmt.Printf("weave plugin %s\n", version)
os.Exit(0)
}
if debug {
SetLogLevel("debug")
}
var d skel.Driver
d, err := driver.New(version, nameserver)
if err != nil {
Log.Fatalf("unable to create driver: %s", err)
}
var listener net.Listener
listener, err = net.Listen("unix", address)
if err != nil {
Log.Fatal(err)
}
defer listener.Close()
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt, os.Kill, syscall.SIGTERM)
endChan := make(chan error, 1)
go func() {
endChan <- skel.Listen(listener, d)
}()
select {
case sig := <-sigChan:
Log.Debugf("Caught signal %s; shutting down", sig)
case err := <-endChan:
if err != nil {
Log.Errorf("Error from listener: ", err)
listener.Close()
os.Exit(1)
}
}
}
func main() {
var (
justVersion bool
address string
nameserver string
logLevel string
)
flag.BoolVar(&justVersion, "version", false, "print version and exit")
flag.StringVar(&logLevel, "log-level", "info", "logging level (debug, info, warning, error)")
flag.StringVar(&address, "socket", "/run/docker/plugins/weave.sock", "socket on which to listen")
flag.StringVar(&nameserver, "nameserver", "", "nameserver to provide to containers")
flag.Parse()
if justVersion {
fmt.Printf("weave plugin %s\n", version)
os.Exit(0)
}
SetLogLevel(logLevel)
Log.Println("Weave plugin", version, "Command line options:", os.Args)
var d skel.Driver
d, err := driver.New(version, nameserver)
if err != nil {
Log.Fatalf("unable to create driver: %s", err)
}
var listener net.Listener
// remove socket from last invocation
if err := os.Remove(address); err != nil && !os.IsNotExist(err) {
Log.Fatal(err)
}
listener, err = net.Listen("unix", address)
if err != nil {
Log.Fatal(err)
}
defer listener.Close()
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt, os.Kill, syscall.SIGTERM)
endChan := make(chan error, 1)
go func() {
endChan <- skel.Listen(listener, d)
}()
select {
case sig := <-sigChan:
Log.Debugf("Caught signal %s; shutting down", sig)
case err := <-endChan:
if err != nil {
Log.Errorf("Error from listener: ", err)
listener.Close()
os.Exit(1)
}
}
}