100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
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package overlay
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import (
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"fmt"
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"github.com/docker/libnetwork/driverapi"
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"github.com/docker/libnetwork/types"
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"github.com/vishvananda/netlink"
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)
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// Join method is invoked when a Sandbox is attached to an endpoint.
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func (d *driver) Join(nid, eid types.UUID, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
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if err := validateID(nid, eid); err != nil {
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return err
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}
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n := d.network(nid)
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if n == nil {
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return fmt.Errorf("could not find network with id %s", nid)
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}
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ep := n.endpoint(eid)
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if ep == nil {
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return fmt.Errorf("could not find endpoint with id %s", eid)
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}
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if err := n.joinSandbox(); err != nil {
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return fmt.Errorf("network sandbox join failed: %v",
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err)
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}
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sbox := n.sandbox()
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name1, name2, err := createVethPair()
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if err != nil {
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return err
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}
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if err := sbox.AddInterface(name1, "veth",
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sbox.InterfaceOptions().Master("bridge1")); err != nil {
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return fmt.Errorf("could not add veth pair inside the network sandbox: %v", err)
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}
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veth, err := netlink.LinkByName(name2)
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if err != nil {
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return fmt.Errorf("could not find link by name %s: %v", name2, err)
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}
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if err := netlink.LinkSetHardwareAddr(veth, ep.mac); err != nil {
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return fmt.Errorf("could not set mac address to the container interface: %v", err)
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}
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for _, iNames := range jinfo.InterfaceNames() {
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// Make sure to set names on the correct interface ID.
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if iNames.ID() == 1 {
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err = iNames.SetNames(name2, "eth")
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if err != nil {
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return err
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}
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}
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}
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err = jinfo.SetGateway(bridgeIP.IP)
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if err != nil {
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return err
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}
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d.peerDbAdd(nid, eid, ep.addr.IP, ep.mac,
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d.serfInstance.LocalMember().Addr, true)
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d.notifyCh <- ovNotify{
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action: "join",
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nid: nid,
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eid: eid,
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}
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return nil
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}
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// Leave method is invoked when a Sandbox detaches from an endpoint.
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func (d *driver) Leave(nid, eid types.UUID) error {
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if err := validateID(nid, eid); err != nil {
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return err
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}
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n := d.network(nid)
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if n == nil {
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return fmt.Errorf("could not find network with id %s", nid)
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}
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d.notifyCh <- ovNotify{
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action: "leave",
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nid: nid,
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eid: eid,
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}
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n.leaveSandbox()
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return nil
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}
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