coredns/plugin/kubernetes/local.go
2018-10-10 12:28:45 -07:00

45 lines
710 B
Go

package kubernetes
import (
"net"
)
func localPodIP() net.IP {
addrs, err := net.InterfaceAddrs()
if err != nil {
return nil
}
for _, addr := range addrs {
ip, _, _ := net.ParseCIDR(addr.String())
ip = ip.To4()
if ip == nil || ip.IsLoopback() {
continue
}
return ip
}
return nil
}
func (k *Kubernetes) localNodeName() string {
localIP := k.interfaceAddrsFunc()
if localIP == nil {
return ""
}
// Find endpoint matching localIP
ep := k.APIConn.EpIndexReverse(localIP.String())
if ep == nil {
return ""
}
for _, eps := range ep.Subsets {
for _, addr := range eps.Addresses {
if localIP.Equal(net.ParseIP(addr.IP)) {
return addr.NodeName
}
}
}
return ""
}