// Return the IPv4 address of a network interface
func GetIfaceAddr(name string) (*net.IPNet, error) {
iface, err := netlink.LinkByName(name)
if err != nil {
return nil, err
}
addrs, err := netlink.AddrList(iface, netlink.FAMILY_V4)
if err != nil {
return nil, err
}
if len(addrs) == 0 {
return nil, fmt.Errorf("Interface %v has no IP addresses", name)
}
if len(addrs) > 1 {
log.Info("Interface %v has more than 1 IPv4 address. Defaulting to using %v\n", name, addrs[0].IP)
}
return addrs[0].IPNet, nil
}
func (n notify) RemoveMember(addr net.IP) {
log.Info("Member Left : ", addr)
DeletePeer(addr.String())
}
func (n notify) NewMember(addr net.IP) {
log.Info("New Member Added : ", addr)
JoinDatastore(addr.String())
AddPeer(addr.String())
}