Golang JoinInfo.InterfaceName方法代码示例

// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
	join := &api.JoinRequest{
		NetworkID:  nid,
		EndpointID: eid,
		SandboxKey: sboxKey,
		Options:    options,
	}
	var (
		res api.JoinResponse
		err error
	)
	if err = d.call("Join", join, &res); err != nil {
		return err
	}

	ifaceName := res.InterfaceName
	if jinfo.InterfaceName() != nil && ifaceName == nil {
		return fmt.Errorf("no interface name information received while one is expected")
	}

	if iface := jinfo.InterfaceName(); iface != nil {
		if err := iface.SetNames(ifaceName.SrcName, ifaceName.DstPrefix); err != nil {
			return errorWithRollback(fmt.Sprintf("failed to set interface name: %s", err), d.Leave(nid, eid))
		}
	}

	var addr net.IP
	if res.Gateway != "" {
		if addr = net.ParseIP(res.Gateway); addr == nil {
			return fmt.Errorf(`unable to parse Gateway "%s"`, res.Gateway)
		}
		if jinfo.SetGateway(addr) != nil {
			return errorWithRollback(fmt.Sprintf("failed to set gateway: %v", addr), d.Leave(nid, eid))
		}
	}
	if res.GatewayIPv6 != "" {
		if addr = net.ParseIP(res.GatewayIPv6); addr == nil {
			return fmt.Errorf(`unable to parse GatewayIPv6 "%s"`, res.GatewayIPv6)
		}
		if jinfo.SetGatewayIPv6(addr) != nil {
			return errorWithRollback(fmt.Sprintf("failed to set gateway IPv6: %v", addr), d.Leave(nid, eid))
		}
	}
	if len(res.StaticRoutes) > 0 {
		routes, err := parseStaticRoutes(res)
		if err != nil {
			return err
		}
		for _, route := range routes {
			if jinfo.AddStaticRoute(route.Destination, route.RouteType, route.NextHop) != nil {
				return errorWithRollback(fmt.Sprintf("failed to set static route: %v", route), d.Leave(nid, eid))
			}
		}
	}
	return nil
}

// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
	defer osl.InitOSContext()()

	network, err := d.getNetwork(nid)
	if err != nil {
		return err
	}

	endpoint, err := network.getEndpoint(eid)
	if err != nil {
		return err
	}

	if endpoint == nil {
		return EndpointNotFoundError(eid)
	}

	endpoint.containerConfig, err = parseContainerOptions(options)
	if err != nil {
		return err
	}

	iNames := jinfo.InterfaceName()
	err = iNames.SetNames(endpoint.srcName, containerVethPrefix)
	if err != nil {
		return err
	}

	err = jinfo.SetGateway(network.bridge.gatewayIPv4)
	if err != nil {
		return err
	}

	err = jinfo.SetGatewayIPv6(network.bridge.gatewayIPv6)
	if err != nil {
		return err
	}

	return nil
}

// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
	if err := validateID(nid, eid); err != nil {
		return err
	}

	n := d.network(nid)
	if n == nil {
		return fmt.Errorf("could not find network with id %s", nid)
	}

	ep := n.endpoint(eid)
	if ep == nil {
		return fmt.Errorf("could not find endpoint with id %s", eid)
	}

	if err := n.joinSandbox(); err != nil {
		return fmt.Errorf("network sandbox join failed: %v",
			err)
	}

	sbox := n.sandbox()

	name1, name2, err := createVethPair()
	if err != nil {
		return err
	}

	// Set the container interface and its peer MTU to 1450 to allow
	// for 50 bytes vxlan encap (inner eth header(14) + outer IP(20) +
	// outer UDP(8) + vxlan header(8))
	veth, err := netlink.LinkByName(name1)
	if err != nil {
		return fmt.Errorf("cound not find link by name %s: %v", name1, err)
	}
	err = netlink.LinkSetMTU(veth, vxlanVethMTU)
	if err != nil {
		return err
	}

	if err := sbox.AddInterface(name1, "veth",
		sbox.InterfaceOptions().Master("bridge1")); err != nil {
		return fmt.Errorf("could not add veth pair inside the network sandbox: %v", err)
	}

	veth, err = netlink.LinkByName(name2)
	if err != nil {
		return fmt.Errorf("could not find link by name %s: %v", name2, err)
	}
	err = netlink.LinkSetMTU(veth, vxlanVethMTU)
	if err != nil {
		return err
	}

	if err := netlink.LinkSetHardwareAddr(veth, ep.mac); err != nil {
		return fmt.Errorf("could not set mac address to the container interface: %v", err)
	}

	if iNames := jinfo.InterfaceName(); iNames != nil {
		err = iNames.SetNames(name2, "eth")
		if err != nil {
			return err
		}
	}

	err = jinfo.SetGateway(bridgeIP.IP)
	if err != nil {
		return err
	}

	d.peerDbAdd(nid, eid, ep.addr.IP, ep.mac,
		d.serfInstance.LocalMember().Addr, true)
	d.notifyCh <- ovNotify{
		action: "join",
		nid:    nid,
		eid:    eid,
	}

	return nil
}

//.........这里部分代码省略.........
		return fmt.Errorf("couldn't get vxlan id for %q: %v", s.subnetIP.String(), err)
	}

	if err := n.joinSandbox(false); err != nil {
		return fmt.Errorf("network sandbox join failed: %v", err)
	}

	if err := n.joinSubnetSandbox(s, false); err != nil {
		return fmt.Errorf("subnet sandbox join failed for %q: %v", s.subnetIP.String(), err)
	}

	// joinSubnetSandbox gets called when an endpoint comes up on a new subnet in the
	// overlay network. Hence the Endpoint count should be updated outside joinSubnetSandbox
	n.incEndpointCount()

	sbox := n.sandbox()

	overlayIfName, containerIfName, err := createVethPair()
	if err != nil {
		return err
	}

	ep.ifName = containerIfName

	if err := d.writeEndpointToStore(ep); err != nil {
		return fmt.Errorf("failed to update overlay endpoint %s to local data store: %v", ep.id[0:7], err)
	}

	// Set the container interface and its peer MTU to 1450 to allow
	// for 50 bytes vxlan encap (inner eth header(14) + outer IP(20) +
	// outer UDP(8) + vxlan header(8))
	mtu := n.maxMTU()

	veth, err := nlh.LinkByName(overlayIfName)
	if err != nil {
		return fmt.Errorf("cound not find link by name %s: %v", overlayIfName, err)
	}
	err = nlh.LinkSetMTU(veth, mtu)
	if err != nil {
		return err
	}

	if err := sbox.AddInterface(overlayIfName, "veth",
		sbox.InterfaceOptions().Master(s.brName)); err != nil {
		return fmt.Errorf("could not add veth pair inside the network sandbox: %v", err)
	}

	veth, err = nlh.LinkByName(containerIfName)
	if err != nil {
		return fmt.Errorf("could not find link by name %s: %v", containerIfName, err)
	}
	err = nlh.LinkSetMTU(veth, mtu)
	if err != nil {
		return err
	}

	if err := nlh.LinkSetHardwareAddr(veth, ep.mac); err != nil {
		return fmt.Errorf("could not set mac address (%v) to the container interface: %v", ep.mac, err)
	}

	for _, sub := range n.subnets {
		if sub == s {
			continue
		}
		if err := jinfo.AddStaticRoute(sub.subnetIP, types.NEXTHOP, s.gwIP.IP); err != nil {
			log.Errorf("Adding subnet %s static route in network %q failed\n", s.subnetIP, n.id)
		}
	}

	if iNames := jinfo.InterfaceName(); iNames != nil {
		err = iNames.SetNames(containerIfName, "eth")
		if err != nil {
			return err
		}
	}

	d.peerDbAdd(nid, eid, ep.addr.IP, ep.addr.Mask, ep.mac,
		net.ParseIP(d.advertiseAddress), true)

	if err := d.checkEncryption(nid, nil, n.vxlanID(s), true, true); err != nil {
		log.Warn(err)
	}

	buf, err := proto.Marshal(&PeerRecord{
		EndpointIP:       ep.addr.String(),
		EndpointMAC:      ep.mac.String(),
		TunnelEndpointIP: d.advertiseAddress,
	})
	if err != nil {
		return err
	}

	if err := jinfo.AddTableEntry(ovPeerTable, eid, buf); err != nil {
		log.Errorf("overlay: Failed adding table entry to joininfo: %v", err)
	}

	d.pushLocalEndpointEvent("join", nid, eid)

	return nil
}

// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
	if err := validateID(nid, eid); err != nil {
		return err
	}

	n := d.network(nid)
	if n == nil {
		return fmt.Errorf("could not find network with id %s", nid)
	}

	ep := n.endpoint(eid)
	if ep == nil {
		return fmt.Errorf("could not find endpoint with id %s", eid)
	}

	s := n.getSubnetforIP(ep.addr)
	if s == nil {
		return fmt.Errorf("could not find subnet for endpoint %s", eid)
	}

	if err := n.obtainVxlanID(s); err != nil {
		return fmt.Errorf("couldn't get vxlan id for %q: %v", s.subnetIP.String(), err)
	}

	if err := n.joinSandbox(); err != nil {
		return fmt.Errorf("network sandbox join failed: %v", err)
	}

	if err := n.joinSubnetSandbox(s); err != nil {
		return fmt.Errorf("subnet sandbox join failed for %q: %v", s.subnetIP.String(), err)
	}

	// joinSubnetSandbox gets called when an endpoint comes up on a new subnet in the
	// overlay network. Hence the Endpoint count should be updated outside joinSubnetSandbox
	n.incEndpointCount()

	sbox := n.sandbox()

	name1, name2, err := createVethPair()
	if err != nil {
		return err
	}

	// Set the container interface and its peer MTU to 1450 to allow
	// for 50 bytes vxlan encap (inner eth header(14) + outer IP(20) +
	// outer UDP(8) + vxlan header(8))
	veth, err := netlink.LinkByName(name1)
	if err != nil {
		return fmt.Errorf("cound not find link by name %s: %v", name1, err)
	}
	err = netlink.LinkSetMTU(veth, vxlanVethMTU)
	if err != nil {
		return err
	}

	if err := sbox.AddInterface(name1, "veth",
		sbox.InterfaceOptions().Master(s.brName)); err != nil {
		return fmt.Errorf("could not add veth pair inside the network sandbox: %v", err)
	}

	veth, err = netlink.LinkByName(name2)
	if err != nil {
		return fmt.Errorf("could not find link by name %s: %v", name2, err)
	}
	err = netlink.LinkSetMTU(veth, vxlanVethMTU)
	if err != nil {
		return err
	}

	if err := netlink.LinkSetHardwareAddr(veth, ep.mac); err != nil {
		return fmt.Errorf("could not set mac address (%v) to the container interface: %v", ep.mac, err)
	}

	for _, sub := range n.subnets {
		if sub == s {
			continue
		}
		if err := jinfo.AddStaticRoute(sub.subnetIP, types.NEXTHOP, s.gwIP.IP); err != nil {
			log.Errorf("Adding subnet %s static route in network %q failed\n", s.subnetIP, n.id)
		}
	}

	if iNames := jinfo.InterfaceName(); iNames != nil {
		err = iNames.SetNames(name2, "eth")
		if err != nil {
			return err
		}
	}

	d.peerDbAdd(nid, eid, ep.addr.IP, ep.addr.Mask, ep.mac,
		net.ParseIP(d.bindAddress), true)
	d.pushLocalEndpointEvent("join", nid, eid)

	return nil
}

// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
	defer osl.InitOSContext()()
	n, err := d.getNetwork(nid)
	if err != nil {
		return err
	}
	endpoint := n.endpoint(eid)
	if endpoint == nil {
		return fmt.Errorf("could not find endpoint with id %s", eid)
	}
	// generate a name for the iface that will be renamed to eth0 in the sbox
	containerIfName, err := netutils.GenerateIfaceName(ns.NlHandle(), vethPrefix, vethLen)
	if err != nil {
		return fmt.Errorf("error generating an interface name: %s", err)
	}
	// create the netlink macvlan interface
	vethName, err := createMacVlan(containerIfName, n.config.Parent, n.config.MacvlanMode)
	if err != nil {
		return err
	}
	// bind the generated iface name to the endpoint
	endpoint.srcName = vethName
	ep := n.endpoint(eid)
	if ep == nil {
		return fmt.Errorf("could not find endpoint with id %s", eid)
	}
	// parse and match the endpoint address with the available v4 subnets
	if len(n.config.Ipv4Subnets) > 0 {
		s := n.getSubnetforIPv4(ep.addr)
		if s == nil {
			return fmt.Errorf("could not find a valid ipv4 subnet for endpoint %s", eid)
		}
		v4gw, _, err := net.ParseCIDR(s.GwIP)
		if err != nil {
			return fmt.Errorf("gatway %s is not a valid ipv4 address: %v", s.GwIP, err)
		}
		err = jinfo.SetGateway(v4gw)
		if err != nil {
			return err
		}
		logrus.Debugf("Macvlan Endpoint Joined with IPv4_Addr: %s, Gateway: %s, MacVlan_Mode: %s, Parent: %s",
			ep.addr.IP.String(), v4gw.String(), n.config.MacvlanMode, n.config.Parent)
	}
	// parse and match the endpoint address with the available v6 subnets
	if len(n.config.Ipv6Subnets) > 0 {
		s := n.getSubnetforIPv6(ep.addrv6)
		if s == nil {
			return fmt.Errorf("could not find a valid ipv6 subnet for endpoint %s", eid)
		}
		v6gw, _, err := net.ParseCIDR(s.GwIP)
		if err != nil {
			return fmt.Errorf("gatway %s is not a valid ipv6 address: %v", s.GwIP, err)
		}
		err = jinfo.SetGatewayIPv6(v6gw)
		if err != nil {
			return err
		}
		logrus.Debugf("Macvlan Endpoint Joined with IPv6_Addr: %s Gateway: %s MacVlan_Mode: %s, Parent: %s",
			ep.addrv6.IP.String(), v6gw.String(), n.config.MacvlanMode, n.config.Parent)
	}
	iNames := jinfo.InterfaceName()
	err = iNames.SetNames(vethName, containerVethPrefix)
	if err != nil {
		return err
	}

	return nil
}

// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
	if err := validateID(nid, eid); err != nil {
		return err
	}

	n := d.network(nid)
	if n == nil {
		return fmt.Errorf("could not find network with id %s", nid)
	}

	ep := n.endpoint(eid)
	if ep == nil {
		return fmt.Errorf("could not find endpoint with id %s", eid)
	}

	if n.secure && len(d.keys) == 0 {
		return fmt.Errorf("cannot join secure network: encryption keys not present")
	}

	s := n.getSubnetforIP(ep.addr)
	if s == nil {
		return fmt.Errorf("could not find subnet for endpoint %s", eid)
	}

	if err := n.obtainVxlanID(s); err != nil {
		return fmt.Errorf("couldn't get vxlan id for %q: %v", s.subnetIP.String(), err)
	}

	if err := n.joinSandbox(false); err != nil {
		return fmt.Errorf("network sandbox join failed: %v", err)
	}

	if err := n.joinSubnetSandbox(s, false); err != nil {
		return fmt.Errorf("subnet sandbox join failed for %q: %v", s.subnetIP.String(), err)
	}

	// joinSubnetSandbox gets called when an endpoint comes up on a new subnet in the
	// overlay network. Hence the Endpoint count should be updated outside joinSubnetSandbox
	n.incEndpointCount()

	// Add creating a veth Pair for Solaris

	containerIfName := "solaris-if"
	ep.ifName = containerIfName

	if err := d.writeEndpointToStore(ep); err != nil {
		return fmt.Errorf("failed to update overlay endpoint %s to local data store: %v", ep.id[0:7], err)
	}

	// Add solaris plumbing to add veth (with ep mac addr) to sandbox

	for _, sub := range n.subnets {
		if sub == s {
			continue
		}
		if err := jinfo.AddStaticRoute(sub.subnetIP, types.NEXTHOP, s.gwIP.IP); err != nil {
			log.Errorf("Adding subnet %s static route in network %q failed\n", s.subnetIP, n.id)
		}
	}

	if iNames := jinfo.InterfaceName(); iNames != nil {
		err := iNames.SetNames(containerIfName, "eth")
		if err != nil {
			return err
		}
	}

	d.peerDbAdd(nid, eid, ep.addr.IP, ep.addr.Mask, ep.mac,
		net.ParseIP(d.advertiseAddress), true)

	if err := d.checkEncryption(nid, nil, n.vxlanID(s), true, true); err != nil {
		log.Warn(err)
	}

	buf, err := proto.Marshal(&PeerRecord{
		EndpointIP:       ep.addr.String(),
		EndpointMAC:      ep.mac.String(),
		TunnelEndpointIP: d.advertiseAddress,
	})
	if err != nil {
		return err
	}

	if err := jinfo.AddTableEntry(ovPeerTable, eid, buf); err != nil {
		log.Errorf("overlay: Failed adding table entry to joininfo: %v", err)
	}

	d.pushLocalEndpointEvent("join", nid, eid)

	return nil
}

// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
	defer osl.InitOSContext()()
	n, err := d.getNetwork(nid)
	if err != nil {
		return err
	}
	endpoint := n.endpoint(eid)
	if endpoint == nil {
		return fmt.Errorf("could not find endpoint with id %s", eid)
	}
	// generate a name for the iface that will be renamed to eth0 in the sbox
	containerIfName, err := netutils.GenerateIfaceName(ns.NlHandle(), vethPrefix, vethLen)
	if err != nil {
		return fmt.Errorf("error generating an interface name: %v", err)
	}
	// create the netlink ipvlan interface
	vethName, err := createIPVlan(containerIfName, n.config.Parent, n.config.IpvlanMode)
	if err != nil {
		return err
	}
	// bind the generated iface name to the endpoint
	endpoint.srcName = vethName
	ep := n.endpoint(eid)
	if ep == nil {
		return fmt.Errorf("could not find endpoint with id %s", eid)
	}
	if n.config.IpvlanMode == modeL3 {
		// disable gateway services to add a default gw using dev eth0 only
		jinfo.DisableGatewayService()
		defaultRoute, err := ifaceGateway(defaultV4RouteCidr)
		if err != nil {
			return err
		}
		if err := jinfo.AddStaticRoute(defaultRoute.Destination, defaultRoute.RouteType, defaultRoute.NextHop); err != nil {
			return fmt.Errorf("failed to set an ipvlan l3 mode ipv4 default gateway: %v", err)
		}
		logrus.Debugf("Ipvlan Endpoint Joined with IPv4_Addr: %s, Ipvlan_Mode: %s, Parent: %s",
			ep.addr.IP.String(), n.config.IpvlanMode, n.config.Parent)
		// If the endpoint has a v6 address, set a v6 default route
		if ep.addrv6 != nil {
			default6Route, err := ifaceGateway(defaultV6RouteCidr)
			if err != nil {
				return err
			}
			if err = jinfo.AddStaticRoute(default6Route.Destination, default6Route.RouteType, default6Route.NextHop); err != nil {
				return fmt.Errorf("failed to set an ipvlan l3 mode ipv6 default gateway: %v", err)
			}
			logrus.Debugf("Ipvlan Endpoint Joined with IPv6_Addr: %s, Ipvlan_Mode: %s, Parent: %s",
				ep.addrv6.IP.String(), n.config.IpvlanMode, n.config.Parent)
		}
	}
	if n.config.IpvlanMode == modeL2 {
		// parse and correlate the endpoint v4 address with the available v4 subnets
		if len(n.config.Ipv4Subnets) > 0 {
			s := n.getSubnetforIPv4(ep.addr)
			if s == nil {
				return fmt.Errorf("could not find a valid ipv4 subnet for endpoint %s", eid)
			}
			v4gw, _, err := net.ParseCIDR(s.GwIP)
			if err != nil {
				return fmt.Errorf("gatway %s is not a valid ipv4 address: %v", s.GwIP, err)
			}
			err = jinfo.SetGateway(v4gw)
			if err != nil {
				return err
			}
			logrus.Debugf("Ipvlan Endpoint Joined with IPv4_Addr: %s, Gateway: %s, Ipvlan_Mode: %s, Parent: %s",
				ep.addr.IP.String(), v4gw.String(), n.config.IpvlanMode, n.config.Parent)
		}
		// parse and correlate the endpoint v6 address with the available v6 subnets
		if len(n.config.Ipv6Subnets) > 0 {
			s := n.getSubnetforIPv6(ep.addrv6)
			if s == nil {
				return fmt.Errorf("could not find a valid ipv6 subnet for endpoint %s", eid)
			}
			v6gw, _, err := net.ParseCIDR(s.GwIP)
			if err != nil {
				return fmt.Errorf("gatway %s is not a valid ipv6 address: %v", s.GwIP, err)
			}
			err = jinfo.SetGatewayIPv6(v6gw)
			if err != nil {
				return err
			}
			logrus.Debugf("Ipvlan Endpoint Joined with IPv6_Addr: %s, Gateway: %s, Ipvlan_Mode: %s, Parent: %s",
				ep.addrv6.IP.String(), v6gw.String(), n.config.IpvlanMode, n.config.Parent)
		}
	}
	iNames := jinfo.InterfaceName()
	err = iNames.SetNames(vethName, containerVethPrefix)
	if err != nil {
		return err
	}
	if err = d.storeUpdate(ep); err != nil {
		return fmt.Errorf("failed to save ipvlan endpoint %s to store: %v", ep.id[0:7], err)
	}

	return nil
}