Golang netutils.GenerateDefaultGateway函數代碼示例

本文整理匯總了Golang中github.com/openshift/openshift-sdn/pkg/netutils.GenerateDefaultGateway函數的典型用法代碼示例。如果您正苦於以下問題：Golang GenerateDefaultGateway函數的具體用法？Golang GenerateDefaultGateway怎麽用？Golang GenerateDefaultGateway使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了GenerateDefaultGateway函數的8個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: Setup

func (c *FlowController) Setup(localSubnet, containerNetwork, servicesNetwork string, mtu uint) error {
	_, ipnet, err := net.ParseCIDR(localSubnet)
	subnetMaskLength, _ := ipnet.Mask.Size()
	gateway := netutils.GenerateDefaultGateway(ipnet).String()
	out, err := exec.Command("openshift-sdn-kube-subnet-setup.sh", gateway, ipnet.String(), containerNetwork, fmt.Sprint(subnetMaskLength), gateway, fmt.Sprint(mtu)).CombinedOutput()
	log.Infof("Output of setup script:\n%s", out)
	if err != nil {
		exitErr, ok := err.(*exec.ExitError)
		if ok {
			status := exitErr.ProcessState.Sys().(syscall.WaitStatus)
			if status.Exited() && status.ExitStatus() == 140 {
				// valid, do nothing, its just a benevolent restart
				return nil
			}
		}
		log.Errorf("Error executing setup script. \n\tOutput: %s\n\tError: %v\n", out, err)
		return err
	}
	//go c.manageLocalIpam(ipnet)
	_, err = exec.Command("ovs-ofctl", "-O", "OpenFlow13", "del-flows", "br0").CombinedOutput()
	if err != nil {
		return err
	}
	_, err = exec.Command("ovs-ofctl", "-O", "OpenFlow13", "add-flow", "br0", "cookie=0x0,table=0,priority=50,actions=output:2").CombinedOutput()
	arprule := fmt.Sprintf("cookie=0x0,table=0,priority=100,arp,nw_dst=%s,actions=output:2", gateway)
	iprule := fmt.Sprintf("cookie=0x0,table=0,priority=100,ip,nw_dst=%s,actions=output:2", gateway)
	_, err = exec.Command("ovs-ofctl", "-O", "OpenFlow13", "add-flow", "br0", arprule).CombinedOutput()
	_, err = exec.Command("ovs-ofctl", "-O", "OpenFlow13", "add-flow", "br0", iprule).CombinedOutput()
	return err
}

開發者ID:nitintutlani，項目名稱:origin，代碼行數:30，代碼來源:kube.go

示例2: Setup

func (c *FlowController) Setup(localSubnet, containerNetwork, servicesNetwork string, mtu uint) error {
	_, ipnet, err := net.ParseCIDR(localSubnet)
	subnetMaskLength, _ := ipnet.Mask.Size()
	out, err := exec.Command("openshift-sdn-simple-setup-node.sh", netutils.GenerateDefaultGateway(ipnet).String(), ipnet.String(), containerNetwork, fmt.Sprint(subnetMaskLength), fmt.Sprint(mtu)).CombinedOutput()
	log.Infof("Output of setup script:\n%s", out)
	if err != nil {
		log.Errorf("Error executing setup script. \n\tOutput: %s\n\tError: %v\n", out, err)
	}
	_, err = exec.Command("ovs-ofctl", "-O", "OpenFlow13", "del-flows", "br0").CombinedOutput()
	return err
}

開發者ID:nitintutlani，項目名稱:origin，代碼行數:11，代碼來源:lbr.go

示例3: Setup

func (c *FlowController) Setup(localSubnet, containerNetwork, servicesNetwork string) error {
	_, ipnet, err := net.ParseCIDR(localSubnet)
	subnetMaskLength, _ := ipnet.Mask.Size()
	gateway := netutils.GenerateDefaultGateway(ipnet).String()
	out, err := exec.Command("openshift-sdn-multitenant-setup.sh", gateway, ipnet.String(), containerNetwork, strconv.Itoa(subnetMaskLength), gateway, servicesNetwork).CombinedOutput()
	log.Infof("Output of setup script:\n%s", out)
	if err != nil {
		exitErr, ok := err.(*exec.ExitError)
		if ok {
			status := exitErr.ProcessState.Sys().(syscall.WaitStatus)
			if status.Exited() && status.ExitStatus() == 140 {
				// valid, do nothing, its just a benevolent restart
				return nil
			}
		}
		log.Errorf("Error executing setup script. \n\tOutput: %s\n\tError: %v\n", out, err)
	}
	return err
}

開發者ID:romanbartl，項目名稱:origin，代碼行數:19，代碼來源:multitenant.go

示例4: Setup

func (c *FlowController) Setup(localSubnetCIDR, clusterNetworkCIDR, servicesNetworkCIDR string, mtu uint) error {
	_, ipnet, err := net.ParseCIDR(localSubnetCIDR)
	localSubnetMaskLength, _ := ipnet.Mask.Size()
	localSubnetGateway := netutils.GenerateDefaultGateway(ipnet).String()
	out, err := exec.Command("openshift-sdn-ovs-setup.sh", localSubnetGateway, localSubnetCIDR, fmt.Sprint(localSubnetMaskLength), clusterNetworkCIDR, servicesNetworkCIDR, fmt.Sprint(mtu), fmt.Sprint(c.multitenant)).CombinedOutput()
	if err != nil {
		glog.Infof("Output of setup script:\n%s", out)
		exitErr, ok := err.(*exec.ExitError)
		if ok {
			status := exitErr.ProcessState.Sys().(syscall.WaitStatus)
			if status.Exited() && status.ExitStatus() == 140 {
				// valid, do nothing, its just a benevolent restart
				return nil
			}
		}
		glog.Errorf("Error executing setup script: %v\n", err)
		return err
	} else {
		glog.V(5).Infof("Output of setup script:\n%s", out)
	}
	return nil
}

開發者ID:danwinship，項目名稱:openshift-sdn，代碼行數:22，代碼來源:controller.go

示例5: Setup

func (c *FlowController) Setup(localSubnet, containerNetwork, servicesNetwork string, mtu uint) error {
	_, ipnet, err := net.ParseCIDR(localSubnet)
	subnetMaskLength, _ := ipnet.Mask.Size()
	gateway := netutils.GenerateDefaultGateway(ipnet).String()
	out, err := exec.Command("openshift-sdn-multitenant-setup.sh", gateway, ipnet.String(), containerNetwork, fmt.Sprint(subnetMaskLength), gateway, servicesNetwork, fmt.Sprint(mtu)).CombinedOutput()
	log.Infof("Output of setup script:\n%s", out)
	if err != nil {
		exitErr, ok := err.(*exec.ExitError)
		if ok {
			status := exitErr.ProcessState.Sys().(syscall.WaitStatus)
			if status.Exited() && status.ExitStatus() == 140 {
				// valid, do nothing, its just a benevolent restart
				err = nil
			}
		}
	}
	if err != nil {
		log.Errorf("Error executing setup script. \n\tOutput: %s\n\tError: %v\n", out, err)
		return err
	}

	fw := firewalld.New()
	err = c.SetupIptables(fw, containerNetwork)
	if err != nil {
		log.Errorf("Error setting up iptables: %v\n", err)
		return err
	}

	fw.AddReloadFunc(func() {
		err = c.SetupIptables(fw, containerNetwork)
		if err != nil {
			log.Errorf("Error reloading iptables: %v\n", err)
		}
	})

	return nil
}

開發者ID:nitintutlani，項目名稱:origin，代碼行數:37，代碼來源:multitenant.go

示例6: Setup

func (c *FlowController) Setup(localSubnetCIDR, clusterNetworkCIDR, servicesNetworkCIDR string, mtu uint) (bool, error) {
	_, ipnet, err := net.ParseCIDR(localSubnetCIDR)
	localSubnetMaskLength, _ := ipnet.Mask.Size()
	localSubnetGateway := netutils.GenerateDefaultGateway(ipnet).String()

	glog.V(5).Infof("[SDN setup] node pod subnet %s gateway %s", ipnet.String(), localSubnetGateway)

	gwCIDR := fmt.Sprintf("%s/%d", localSubnetGateway, localSubnetMaskLength)
	if alreadySetUp(c.multitenant, gwCIDR) {
		glog.V(5).Infof("[SDN setup] no SDN setup required")
		return false, nil
	}
	glog.V(5).Infof("[SDN setup] full SDN setup required")

	mtuStr := fmt.Sprint(mtu)

	itx := ipcmd.NewTransaction(LBR)
	itx.SetLink("down")
	itx.IgnoreError()
	itx.DeleteLink()
	itx.IgnoreError()
	itx.AddLink("type", "bridge")
	itx.AddAddress(gwCIDR)
	itx.SetLink("up")
	err = itx.EndTransaction()
	if err != nil {
		glog.Errorf("Failed to configure docker bridge: %v", err)
		return false, err
	}
	defer deleteLocalSubnetRoute(LBR, localSubnetCIDR)

	glog.V(5).Infof("[SDN setup] docker setup %s mtu %s", LBR, mtuStr)
	out, err := exec.Command("openshift-sdn-docker-setup.sh", LBR, mtuStr).CombinedOutput()
	if err != nil {
		glog.Errorf("Failed to configure docker networking: %v\n%s", err, out)
		return false, err
	} else {
		glog.V(5).Infof("[SDN setup] docker setup success:\n%s", out)
	}

	config := fmt.Sprintf("export OPENSHIFT_CLUSTER_SUBNET=%s", clusterNetworkCIDR)
	err = ioutil.WriteFile("/run/openshift-sdn/config.env", []byte(config), 0644)
	if err != nil {
		return false, err
	}

	itx = ipcmd.NewTransaction(VLINUXBR)
	itx.DeleteLink()
	itx.IgnoreError()
	itx.AddLink("mtu", mtuStr, "type", "veth", "peer", "name", VOVSBR, "mtu", mtuStr)
	itx.SetLink("up")
	itx.SetLink("txqueuelen", "0")
	err = itx.EndTransaction()
	if err != nil {
		return false, err
	}

	itx = ipcmd.NewTransaction(VOVSBR)
	itx.SetLink("up")
	itx.SetLink("txqueuelen", "0")
	err = itx.EndTransaction()
	if err != nil {
		return false, err
	}

	itx = ipcmd.NewTransaction(LBR)
	itx.AddSlave(VLINUXBR)
	err = itx.EndTransaction()
	if err != nil {
		return false, err
	}

	otx := ovs.NewTransaction(BR)
	otx.AddBridge("fail-mode=secure", "protocols=OpenFlow13")
	otx.AddPort(VXLAN, 1, "type=vxlan", `options:remote_ip="flow"`, `options:key="flow"`)
	otx.AddPort(TUN, 2, "type=internal")
	otx.AddPort(VOVSBR, 3)

	// Table 0; VXLAN filtering; the first rule sends un-tunnelled packets
	// to table 1. Additional per-node rules are filled in by controller.go
	otx.AddFlow("table=0, tun_src=0.0.0.0, actions=goto_table:1")
	// eg, "table=0, tun_src=${remote_node}, actions=goto_table:1"

	// Table 1; learn MAC addresses and continue with table 2
	otx.AddFlow("table=1, actions=learn(table=9, priority=200, hard_timeout=900, NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[], load:NXM_NX_TUN_IPV4_SRC[]->NXM_NX_TUN_IPV4_DST[], output:NXM_OF_IN_PORT[]), goto_table:2")

	// Table 2; initial dispatch
	otx.AddFlow("table=2, priority=200, arp, actions=goto_table:9")
	otx.AddFlow("table=2, priority=100, in_port=1, actions=goto_table:3") // vxlan0
	otx.AddFlow("table=2, priority=100, in_port=2, actions=goto_table:6") // tun0
	otx.AddFlow("table=2, priority=100, in_port=3, actions=goto_table:6") // vovsbr
	otx.AddFlow("table=2, priority=0, actions=goto_table:4")              // container

	// Table 3; incoming from vxlan
	otx.AddFlow("table=3, priority=200, ip, nw_dst=%s, actions=output:2", localSubnetGateway)
	if c.multitenant {
		otx.AddFlow("table=3, priority=100, ip, nw_dst=%s, actions=move:NXM_NX_TUN_ID[0..31]->NXM_NX_REG0[], goto_table:6", localSubnetCIDR)
	} else {
		otx.AddFlow("table=3, priority=100, ip, nw_dst=%s, actions=goto_table:9", localSubnetCIDR)
	}
//.........這裏部分代碼省略.........

開發者ID:richm，項目名稱:origin，代碼行數:101，代碼來源:controller.go

示例7: manageLocalIpam

func (c *FlowController) manageLocalIpam(ipnet *net.IPNet) error {
	ipamHost := "127.0.0.1"
	ipamPort := uint(9080)
	inuse := make([]string, 0)
	ipam, _ := netutils.NewIPAllocator(ipnet.String(), inuse)
	f, err := os.Create("/etc/openshift-sdn/config.env")
	if err != nil {
		return err
	}
	_, err = f.WriteString(fmt.Sprintf("OPENSHIFT_SDN_TAP1_ADDR=%s\nOPENSHIFT_SDN_IPAM_SERVER=http://%s:%s", netutils.GenerateDefaultGateway(ipnet), ipamHost, ipamPort))
	if err != nil {
		return err
	}
	f.Close()
	netutils_server.ListenAndServeNetutilServer(ipam, net.ParseIP(ipamHost), ipamPort, nil)
	return nil
}

開發者ID:nitintutlani，項目名稱:origin，代碼行數:17，代碼來源:kube.go

示例8: SetupSDN

func (plugin *ovsPlugin) SetupSDN(localSubnetCIDR, clusterNetworkCIDR, servicesNetworkCIDR string, mtu uint) (bool, error) {
	_, ipnet, err := net.ParseCIDR(localSubnetCIDR)
	localSubnetMaskLength, _ := ipnet.Mask.Size()
	localSubnetGateway := netutils.GenerateDefaultGateway(ipnet).String()

	glog.V(5).Infof("[SDN setup] node pod subnet %s gateway %s", ipnet.String(), localSubnetGateway)

	gwCIDR := fmt.Sprintf("%s/%d", localSubnetGateway, localSubnetMaskLength)
	if alreadySetUp(plugin.multitenant, gwCIDR) {
		glog.V(5).Infof("[SDN setup] no SDN setup required")
		return false, nil
	}
	glog.V(5).Infof("[SDN setup] full SDN setup required")

	mtuStr := fmt.Sprint(mtu)

	itx := ipcmd.NewTransaction(LBR)
	itx.SetLink("down")
	itx.IgnoreError()
	itx.DeleteLink()
	itx.IgnoreError()
	itx.AddLink("type", "bridge")
	itx.AddAddress(gwCIDR)
	itx.SetLink("up")
	err = itx.EndTransaction()
	if err != nil {
		glog.Errorf("Failed to configure docker bridge: %v", err)
		return false, err
	}
	defer deleteLocalSubnetRoute(LBR, localSubnetCIDR)

	glog.V(5).Infof("[SDN setup] docker setup %s mtu %s", LBR, mtuStr)
	out, err := exec.Command("openshift-sdn-docker-setup.sh", LBR, mtuStr).CombinedOutput()
	if err != nil {
		glog.Errorf("Failed to configure docker networking: %v\n%s", err, out)
		return false, err
	} else {
		glog.V(5).Infof("[SDN setup] docker setup success:\n%s", out)
	}

	config := fmt.Sprintf("export OPENSHIFT_CLUSTER_SUBNET=%s", clusterNetworkCIDR)
	err = ioutil.WriteFile("/run/openshift-sdn/config.env", []byte(config), 0644)
	if err != nil {
		return false, err
	}

	itx = ipcmd.NewTransaction(VLINUXBR)
	itx.DeleteLink()
	itx.IgnoreError()
	itx.AddLink("mtu", mtuStr, "type", "veth", "peer", "name", VOVSBR, "mtu", mtuStr)
	itx.SetLink("up")
	itx.SetLink("txqueuelen", "0")
	err = itx.EndTransaction()
	if err != nil {
		return false, err
	}

	itx = ipcmd.NewTransaction(VOVSBR)
	itx.SetLink("up")
	itx.SetLink("txqueuelen", "0")
	err = itx.EndTransaction()
	if err != nil {
		return false, err
	}

	itx = ipcmd.NewTransaction(LBR)
	itx.AddSlave(VLINUXBR)
	err = itx.EndTransaction()
	if err != nil {
		return false, err
	}

	otx := ovs.NewTransaction(BR)
	otx.AddBridge("fail-mode=secure", "protocols=OpenFlow13")
	otx.AddPort(VXLAN, 1, "type=vxlan", `options:remote_ip="flow"`, `options:key="flow"`)
	otx.AddPort(TUN, 2, "type=internal")
	otx.AddPort(VOVSBR, 3)

	// Table 0: initial dispatch based on in_port
	// vxlan0
	otx.AddFlow("table=0, priority=200, in_port=1, arp, nw_src=%s, nw_dst=%s, actions=move:NXM_NX_TUN_ID[0..31]->NXM_NX_REG0[],goto_table:1", clusterNetworkCIDR, localSubnetCIDR)
	otx.AddFlow("table=0, priority=200, in_port=1, ip, nw_src=%s, nw_dst=%s, actions=move:NXM_NX_TUN_ID[0..31]->NXM_NX_REG0[],goto_table:1", clusterNetworkCIDR, localSubnetCIDR)
	otx.AddFlow("table=0, priority=150, in_port=1, actions=drop")
	// tun0
	otx.AddFlow("table=0, priority=200, in_port=2, arp, nw_src=%s, nw_dst=%s, actions=goto_table:5", localSubnetGateway, clusterNetworkCIDR)
	otx.AddFlow("table=0, priority=200, in_port=2, ip, actions=goto_table:5")
	otx.AddFlow("table=0, priority=150, in_port=2, actions=drop")
	// vovsbr
	otx.AddFlow("table=0, priority=200, in_port=3, arp, nw_src=%s, actions=goto_table:5", localSubnetCIDR)
	otx.AddFlow("table=0, priority=200, in_port=3, ip, nw_src=%s, actions=goto_table:5", localSubnetCIDR)
	otx.AddFlow("table=0, priority=150, in_port=3, actions=drop")
	// else, from a container
	otx.AddFlow("table=0, priority=100, arp, actions=goto_table:2")
	otx.AddFlow("table=0, priority=100, ip, actions=goto_table:2")
	otx.AddFlow("table=0, priority=0, actions=drop")

	// Table 1: VXLAN ingress filtering; filled in by AddHostSubnetRules()
	// eg, "table=1, priority=100, tun_src=${remote_node_ip}, actions=goto_table:5"
	otx.AddFlow("table=1, priority=0, actions=drop")

//.........這裏部分代碼省略.........

開發者ID:iconoeugen，項目名稱:origin，代碼行數:101，代碼來源:controller.go

注：本文中的github.com/openshift/openshift-sdn/pkg/netutils.GenerateDefaultGateway函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。