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skip binding device to ipip tunnel if node's interface is loopback

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Tamihiro Lee 2019-09-09 20:41:45 +09:00 committed by Aaron U'Ren
parent 184976a536
commit 1db19931a2
1 changed files with 8 additions and 3 deletions
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11
pkg/controllers/routing/network_routes_controller.go
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@ -666,9 +666,14 @@ func (nrc *NetworkRoutingController) setupOverlayTunnel(tunnelName string, nextH
// an error here indicates that the the tunnel didn't exist, so we need to create it, if it already exists there's // an error here indicates that the the tunnel didn't exist, so we need to create it, if it already exists there's
// nothing to do here // nothing to do here
if err != nil { if err != nil {
out, err = exec.Command( cmdArgs := []string{"tunnel", "add", tunnelName, "mode", "ipip", "local", nrc.nodeIP.String(), "remote",
"ip", "tunnel", "add", tunnelName, "mode", "ipip", "local", nrc.nodeIP.String(), "remote", nextHop.String()}
nextHop.String(), "dev", nrc.nodeInterface).CombinedOutput() // need to skip binding device if nrc.nodeInterface is loopback, otherwise packets never leave
// from egress interface to the tunnel peer.
if nrc.nodeInterface != "lo" {
cmdArgs = append(cmdArgs, []string{"dev", nrc.nodeInterface}...)
}
out, err := exec.Command("ip", cmdArgs...).CombinedOutput()
if err != nil { if err != nil {
return nil, fmt.Errorf("route not injected for the route advertised by the node %s "+ return nil, fmt.Errorf("route not injected for the route advertised by the node %s "+
"Failed to create tunnel interface %s. error: %s, output: %s", "Failed to create tunnel interface %s. error: %s, output: %s",