Exemple #1
0
func NewHTTPBooter(listenAddr net.TCPAddr, ldlinux []byte,
	ds datasource.DataSource, webPort int) (*HTTPBooter, error) {
	bootMessageVersionedTemplate := strings.Replace(bootMessageTemplate,
		"$VERSION", ds.SelfInfo().Version, -1)
	bootMessageVersionedTemplate = strings.Replace(bootMessageTemplate,
		"$HOST", ds.SelfInfo().IP.String(), -1)
	booter := &HTTPBooter{
		listenAddr:          listenAddr,
		ldlinux:             ldlinux,
		datasource:          ds,
		webPort:             webPort,
		bootMessageTemplate: bootMessageVersionedTemplate,
	}
	return booter, nil
}
Exemple #2
0
// StartDHCP ListenAndServe for dhcp on port 67, binds on interface=ifName if it's
// not empty
func StartDHCP(ifName string, serverIP net.IP, datasource datasource.DataSource) error {
	handler := &Handler{
		ifName:      ifName,
		serverIP:    serverIP,
		datasource:  datasource,
		bootMessage: fmt.Sprintf("Blacksmith (%s)", datasource.SelfInfo().Version),
	}

	log.WithFields(log.Fields{
		"where":  "dhcp.StartDHCP",
		"action": "announce",
	}).Infof("Listening on %s:67 (interface: %s)", serverIP.String(), ifName)

	var err error
	if ifName != "" {
		err = dhcp4.ListenAndServeIf(ifName, handler)
	} else {
		err = dhcp4.ListenAndServe(handler)
	}

	// https://groups.google.com/forum/#!topic/coreos-user/Qbn3OdVtrZU
	if len(datasource.ClusterName()) > 50 { // 63 - 12(mac) - 1(.)
		log.WithField("where", "dhcp.StartDHCP").Warn(
			"Warning: ClusterName is too long. It may break the behaviour of the DHCP clients")
	}

	rand.Seed(time.Now().UTC().UnixNano())

	return err
}