diff --git a/test/e2e/framework/network/utils.go b/test/e2e/framework/network/utils.go index 4a98dcf12b3..67c2e014e62 100644 --- a/test/e2e/framework/network/utils.go +++ b/test/e2e/framework/network/utils.go @@ -46,6 +46,7 @@ import ( e2epodoutput "k8s.io/kubernetes/test/e2e/framework/pod/output" e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper" e2essh "k8s.io/kubernetes/test/e2e/framework/ssh" + storageutils "k8s.io/kubernetes/test/e2e/storage/utils" imageutils "k8s.io/kubernetes/test/utils/image" netutils "k8s.io/utils/net" ) @@ -327,7 +328,20 @@ func (config *NetworkingTestConfig) DialFromContainer(ctx context.Context, proto } if responses.Difference(expectedResponses).Len() > 0 { returnMsg := fmt.Errorf("received unexpected responses... \nAttempt %d\nCommand %v\nretrieved %v\nexpected %v", i, cmd, responses, expectedResponses) + // TODO(aojea) Remove once issues.k8s.io/123760 is solved + // Dump the nodes network routes and addresses for troubleshooting #123760 framework.Logf("encountered error during dial (%v)", returnMsg) + hostExec := storageutils.NewHostExec(config.f) + ginkgo.DeferCleanup(hostExec.Cleanup) + cmd := `echo "IP routes: " && ip route && echo "IP addresses:" && ip addr && echo "Open sockets: " && ss -anp --socket=tcp` + for _, node := range config.Nodes { + result, err := hostExec.IssueCommandWithResult(ctx, cmd, &node) + if err != nil { + framework.Logf("error occurred while executing command %s on node: %v", cmd, err) + continue + } + framework.Logf("Dump network information for node %s:\n%s", node.Name, result) + } return returnMsg }