better detect IP address

following advice from https://github.com/chrislusf/seaweedfs/issues/1671
This commit is contained in:
Chris Lu 2020-12-14 00:30:20 -08:00
parent 38fc89d041
commit 021358749b

View file

@ -7,16 +7,26 @@ import (
)
func DetectedHostAddress() string {
addrs, err := net.InterfaceAddrs()
netInterfaces, err := net.Interfaces()
if err != nil {
glog.V(0).Infof("failed to detect ip address: %v", err)
glog.V(0).Infof("failed to detect net interfaces: %v", err)
return ""
}
for _, a := range addrs {
if ipnet, ok := a.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
if ipnet.IP.To4() != nil {
return ipnet.IP.String()
for _, netInterface := range netInterfaces {
if (netInterface.Flags & net.FlagUp) == 0 {
continue
}
addrs, err := netInterface.Addrs()
if err != nil {
glog.V(0).Infof("get interface addresses: %v", err)
}
for _, a := range addrs {
if ipNet, ok := a.(*net.IPNet); ok && !ipNet.IP.IsLoopback() {
if ipNet.IP.To4() != nil {
return ipNet.IP.String()
}
}
}
}