util

Documentation

Index

• func ClearUDPConntrackForIP(execer exec.Interface, ip string) error
• func ClearUDPConntrackForPeers(execer exec.Interface, origin, dest string) error
• func ClearUDPConntrackForPort(execer exec.Interface, port int) error
• func ExecConntrackTool(execer exec.Interface, parameters ...string) error
• func IsLocalIP(ip string) (bool, error)
• func ShouldSkipService(svcName types.NamespacedName, service *api.Service) bool

Functions

func ClearUDPConntrackForIP

func ClearUDPConntrackForIP(execer exec.Interface, ip string) error

DeleteServiceConnections uses the conntrack tool to delete the conntrack entries for the UDP connections specified by the given service IP

func ClearUDPConntrackForPeers

func ClearUDPConntrackForPeers(execer exec.Interface, origin, dest string) error

ClearUDPConntrackForPeers uses the conntrack tool to delete the conntrack entries for the UDP connections specified by the {origin, dest} IP pair.

func ClearUDPConntrackForPort

func ClearUDPConntrackForPort(execer exec.Interface, port int) error

ClearUDPConntrackForPort uses the conntrack tool to delete the conntrack entries for the UDP connections specified by the port. When a packet arrives, it will not go through NAT table again, because it is not "the first" packet. The solution is clearing the conntrack. Known issues: https://github.com/docker/docker/issues/8795 https://github.com/kubernetes/kubernetes/issues/31983

func ExecConntrackTool

func ExecConntrackTool(execer exec.Interface, parameters ...string) error

ExecConntrackTool executes the conntrack tool using the given parameters

func IsLocalIP

func IsLocalIP(ip string) (bool, error)

func ShouldSkipService

func ShouldSkipService(svcName types.NamespacedName, service *api.Service) bool