856 lines
27 KiB
Go
856 lines
27 KiB
Go
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/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package userspace
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import (
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"fmt"
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"io/ioutil"
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"net"
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"net/http"
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"net/http/httptest"
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"net/url"
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"os"
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"strconv"
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"sync/atomic"
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"testing"
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"time"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/runtime"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/proxy"
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ipttest "k8s.io/kubernetes/pkg/util/iptables/testing"
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)
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const (
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udpIdleTimeoutForTest = 250 * time.Millisecond
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)
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func joinHostPort(host string, port int) string {
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return net.JoinHostPort(host, fmt.Sprintf("%d", port))
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}
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func waitForClosedPortTCP(p *Proxier, proxyPort int) error {
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for i := 0; i < 50; i++ {
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conn, err := net.Dial("tcp", joinHostPort("", proxyPort))
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if err != nil {
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return nil
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}
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conn.Close()
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time.Sleep(1 * time.Millisecond)
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}
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return fmt.Errorf("port %d still open", proxyPort)
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}
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func waitForClosedPortUDP(p *Proxier, proxyPort int) error {
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for i := 0; i < 50; i++ {
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conn, err := net.Dial("udp", joinHostPort("", proxyPort))
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if err != nil {
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return nil
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}
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conn.SetReadDeadline(time.Now().Add(10 * time.Millisecond))
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// To detect a closed UDP port write, then read.
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_, err = conn.Write([]byte("x"))
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if err != nil {
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if e, ok := err.(net.Error); ok && !e.Timeout() {
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return nil
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}
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}
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var buf [4]byte
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_, err = conn.Read(buf[0:])
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if err != nil {
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if e, ok := err.(net.Error); ok && !e.Timeout() {
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return nil
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}
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}
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conn.Close()
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time.Sleep(1 * time.Millisecond)
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}
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return fmt.Errorf("port %d still open", proxyPort)
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}
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var tcpServerPort int32
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var udpServerPort int32
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func TestMain(m *testing.M) {
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// Don't handle panics
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runtime.ReallyCrash = true
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// TCP setup.
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tcp := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(r.URL.Path[1:]))
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}))
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defer tcp.Close()
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u, err := url.Parse(tcp.URL)
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if err != nil {
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panic(fmt.Sprintf("failed to parse: %v", err))
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}
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_, port, err := net.SplitHostPort(u.Host)
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if err != nil {
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panic(fmt.Sprintf("failed to parse: %v", err))
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}
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tcpServerPortValue, err := strconv.Atoi(port)
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if err != nil {
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panic(fmt.Sprintf("failed to atoi(%s): %v", port, err))
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}
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tcpServerPort = int32(tcpServerPortValue)
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// UDP setup.
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udp, err := newUDPEchoServer()
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if err != nil {
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panic(fmt.Sprintf("failed to make a UDP server: %v", err))
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}
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_, port, err = net.SplitHostPort(udp.LocalAddr().String())
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if err != nil {
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panic(fmt.Sprintf("failed to parse: %v", err))
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}
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udpServerPortValue, err := strconv.Atoi(port)
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if err != nil {
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panic(fmt.Sprintf("failed to atoi(%s): %v", port, err))
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}
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udpServerPort = int32(udpServerPortValue)
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go udp.Loop()
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ret := m.Run()
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// it should be safe to call Close() multiple times.
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tcp.Close()
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os.Exit(ret)
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}
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func testEchoTCP(t *testing.T, address string, port int) {
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path := "aaaaa"
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res, err := http.Get("http://" + address + ":" + fmt.Sprintf("%d", port) + "/" + path)
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if err != nil {
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t.Fatalf("error connecting to server: %v", err)
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}
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defer res.Body.Close()
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data, err := ioutil.ReadAll(res.Body)
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if err != nil {
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t.Errorf("error reading data: %v %v", err, string(data))
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}
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if string(data) != path {
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t.Errorf("expected: %s, got %s", path, string(data))
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}
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}
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func testEchoUDP(t *testing.T, address string, port int) {
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data := "abc123"
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conn, err := net.Dial("udp", joinHostPort(address, port))
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if err != nil {
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t.Fatalf("error connecting to server: %v", err)
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}
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if _, err := conn.Write([]byte(data)); err != nil {
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t.Fatalf("error sending to server: %v", err)
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}
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var resp [1024]byte
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n, err := conn.Read(resp[0:])
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if err != nil {
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t.Errorf("error receiving data: %v", err)
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}
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if string(resp[0:n]) != data {
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t.Errorf("expected: %s, got %s", data, string(resp[0:n]))
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}
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}
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func waitForNumProxyLoops(t *testing.T, p *Proxier, want int32) {
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var got int32
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for i := 0; i < 600; i++ {
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got = atomic.LoadInt32(&p.numProxyLoops)
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if got == want {
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return
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}
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time.Sleep(100 * time.Millisecond)
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}
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t.Errorf("expected %d ProxyLoops running, got %d", want, got)
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}
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func waitForNumProxyClients(t *testing.T, s *serviceInfo, want int, timeout time.Duration) {
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var got int
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now := time.Now()
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deadline := now.Add(timeout)
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for time.Now().Before(deadline) {
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s.activeClients.mu.Lock()
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got = len(s.activeClients.clients)
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s.activeClients.mu.Unlock()
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if got == want {
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return
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}
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time.Sleep(500 * time.Millisecond)
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}
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t.Errorf("expected %d ProxyClients live, got %d", want, got)
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}
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func TestTCPProxy(t *testing.T) {
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lb := NewLoadBalancerRR()
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service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
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lb.OnEndpointsUpdate([]api.Endpoints{
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{
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ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
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Ports: []api.EndpointPort{{Name: "p", Port: tcpServerPort}},
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}},
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},
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})
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p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
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if err != nil {
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t.Fatal(err)
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}
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waitForNumProxyLoops(t, p, 0)
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svcInfo, err := p.addServiceOnPort(service, "TCP", 0, time.Second)
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if err != nil {
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t.Fatalf("error adding new service: %#v", err)
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}
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testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
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waitForNumProxyLoops(t, p, 1)
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}
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func TestUDPProxy(t *testing.T) {
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lb := NewLoadBalancerRR()
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service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
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lb.OnEndpointsUpdate([]api.Endpoints{
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{
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ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
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Ports: []api.EndpointPort{{Name: "p", Port: udpServerPort}},
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}},
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},
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})
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p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
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if err != nil {
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t.Fatal(err)
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}
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waitForNumProxyLoops(t, p, 0)
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svcInfo, err := p.addServiceOnPort(service, "UDP", 0, time.Second)
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if err != nil {
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t.Fatalf("error adding new service: %#v", err)
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}
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testEchoUDP(t, "127.0.0.1", svcInfo.proxyPort)
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waitForNumProxyLoops(t, p, 1)
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}
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func TestUDPProxyTimeout(t *testing.T) {
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lb := NewLoadBalancerRR()
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service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
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lb.OnEndpointsUpdate([]api.Endpoints{
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{
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ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
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Ports: []api.EndpointPort{{Name: "p", Port: udpServerPort}},
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}},
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},
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})
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p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
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if err != nil {
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t.Fatal(err)
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}
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waitForNumProxyLoops(t, p, 0)
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svcInfo, err := p.addServiceOnPort(service, "UDP", 0, time.Second)
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if err != nil {
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t.Fatalf("error adding new service: %#v", err)
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}
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waitForNumProxyLoops(t, p, 1)
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testEchoUDP(t, "127.0.0.1", svcInfo.proxyPort)
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// When connecting to a UDP service endpoint, there should be a Conn for proxy.
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waitForNumProxyClients(t, svcInfo, 1, time.Second)
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// If conn has no activity for serviceInfo.timeout since last Read/Write, it should be closed because of timeout.
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waitForNumProxyClients(t, svcInfo, 0, 2*time.Second)
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}
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func TestMultiPortProxy(t *testing.T) {
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lb := NewLoadBalancerRR()
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serviceP := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo-p"}, Port: "p"}
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serviceQ := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo-q"}, Port: "q"}
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lb.OnEndpointsUpdate([]api.Endpoints{{
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ObjectMeta: api.ObjectMeta{Name: serviceP.Name, Namespace: serviceP.Namespace},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
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Ports: []api.EndpointPort{{Name: "p", Protocol: "TCP", Port: tcpServerPort}},
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}},
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}, {
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ObjectMeta: api.ObjectMeta{Name: serviceQ.Name, Namespace: serviceQ.Namespace},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
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Ports: []api.EndpointPort{{Name: "q", Protocol: "UDP", Port: udpServerPort}},
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}},
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}})
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p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
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if err != nil {
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t.Fatal(err)
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}
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waitForNumProxyLoops(t, p, 0)
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svcInfoP, err := p.addServiceOnPort(serviceP, "TCP", 0, time.Second)
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if err != nil {
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t.Fatalf("error adding new service: %#v", err)
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}
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testEchoTCP(t, "127.0.0.1", svcInfoP.proxyPort)
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waitForNumProxyLoops(t, p, 1)
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svcInfoQ, err := p.addServiceOnPort(serviceQ, "UDP", 0, time.Second)
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if err != nil {
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t.Fatalf("error adding new service: %#v", err)
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}
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testEchoUDP(t, "127.0.0.1", svcInfoQ.proxyPort)
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waitForNumProxyLoops(t, p, 2)
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}
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func TestMultiPortOnServiceUpdate(t *testing.T) {
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lb := NewLoadBalancerRR()
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serviceP := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
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serviceQ := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "q"}
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serviceX := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "x"}
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p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
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if err != nil {
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t.Fatal(err)
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}
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waitForNumProxyLoops(t, p, 0)
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p.OnServiceUpdate([]api.Service{{
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ObjectMeta: api.ObjectMeta{Name: serviceP.Name, Namespace: serviceP.Namespace},
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Spec: api.ServiceSpec{ClusterIP: "1.2.3.4", Ports: []api.ServicePort{{
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Name: "p",
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Port: 80,
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Protocol: "TCP",
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}, {
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Name: "q",
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Port: 81,
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|
Protocol: "UDP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
waitForNumProxyLoops(t, p, 2)
|
||
|
|
svcInfo, exists := p.getServiceInfo(serviceP)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("can't find serviceInfo for %s", serviceP)
|
||
|
|
}
|
||
|
|
if svcInfo.portal.ip.String() != "1.2.3.4" || svcInfo.portal.port != 80 || svcInfo.protocol != "TCP" {
|
||
|
|
t.Errorf("unexpected serviceInfo for %s: %#v", serviceP, svcInfo)
|
||
|
|
}
|
||
|
|
|
||
|
|
svcInfo, exists = p.getServiceInfo(serviceQ)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("can't find serviceInfo for %s", serviceQ)
|
||
|
|
}
|
||
|
|
if svcInfo.portal.ip.String() != "1.2.3.4" || svcInfo.portal.port != 81 || svcInfo.protocol != "UDP" {
|
||
|
|
t.Errorf("unexpected serviceInfo for %s: %#v", serviceQ, svcInfo)
|
||
|
|
}
|
||
|
|
|
||
|
|
svcInfo, exists = p.getServiceInfo(serviceX)
|
||
|
|
if exists {
|
||
|
|
t.Fatalf("found unwanted serviceInfo for %s: %#v", serviceX, svcInfo)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Helper: Stops the proxy for the named service.
|
||
|
|
func stopProxyByName(proxier *Proxier, service proxy.ServicePortName) error {
|
||
|
|
info, found := proxier.getServiceInfo(service)
|
||
|
|
if !found {
|
||
|
|
return fmt.Errorf("unknown service: %s", service)
|
||
|
|
}
|
||
|
|
return proxier.stopProxy(service, info)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestTCPProxyStop(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{
|
||
|
|
{
|
||
|
|
ObjectMeta: api.ObjectMeta{Namespace: service.Namespace, Name: service.Name},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: tcpServerPort}},
|
||
|
|
}},
|
||
|
|
},
|
||
|
|
})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "TCP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
if !svcInfo.isAlive() {
|
||
|
|
t.Fatalf("wrong value for isAlive(): expected true")
|
||
|
|
}
|
||
|
|
conn, err := net.Dial("tcp", joinHostPort("", svcInfo.proxyPort))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error connecting to proxy: %v", err)
|
||
|
|
}
|
||
|
|
conn.Close()
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
stopProxyByName(p, service)
|
||
|
|
if svcInfo.isAlive() {
|
||
|
|
t.Fatalf("wrong value for isAlive(): expected false")
|
||
|
|
}
|
||
|
|
// Wait for the port to really close.
|
||
|
|
if err := waitForClosedPortTCP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUDPProxyStop(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{
|
||
|
|
{
|
||
|
|
ObjectMeta: api.ObjectMeta{Namespace: service.Namespace, Name: service.Name},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: udpServerPort}},
|
||
|
|
}},
|
||
|
|
},
|
||
|
|
})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "UDP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
conn, err := net.Dial("udp", joinHostPort("", svcInfo.proxyPort))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error connecting to proxy: %v", err)
|
||
|
|
}
|
||
|
|
conn.Close()
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
stopProxyByName(p, service)
|
||
|
|
// Wait for the port to really close.
|
||
|
|
if err := waitForClosedPortUDP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestTCPProxyUpdateDelete(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{
|
||
|
|
{
|
||
|
|
ObjectMeta: api.ObjectMeta{Namespace: service.Namespace, Name: service.Name},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: tcpServerPort}},
|
||
|
|
}},
|
||
|
|
},
|
||
|
|
})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "TCP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
conn, err := net.Dial("tcp", joinHostPort("", svcInfo.proxyPort))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error connecting to proxy: %v", err)
|
||
|
|
}
|
||
|
|
conn.Close()
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{})
|
||
|
|
if err := waitForClosedPortTCP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUDPProxyUpdateDelete(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{
|
||
|
|
{
|
||
|
|
ObjectMeta: api.ObjectMeta{Namespace: service.Namespace, Name: service.Name},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: udpServerPort}},
|
||
|
|
}},
|
||
|
|
},
|
||
|
|
})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "UDP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
conn, err := net.Dial("udp", joinHostPort("", svcInfo.proxyPort))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error connecting to proxy: %v", err)
|
||
|
|
}
|
||
|
|
conn.Close()
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{})
|
||
|
|
if err := waitForClosedPortUDP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestTCPProxyUpdateDeleteUpdate(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
endpoint := api.Endpoints{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: tcpServerPort}},
|
||
|
|
}},
|
||
|
|
}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{endpoint})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "TCP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
conn, err := net.Dial("tcp", joinHostPort("", svcInfo.proxyPort))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error connecting to proxy: %v", err)
|
||
|
|
}
|
||
|
|
conn.Close()
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{})
|
||
|
|
if err := waitForClosedPortTCP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
// need to add endpoint here because it got clean up during service delete
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{endpoint})
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{ClusterIP: "1.2.3.4", Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: int32(svcInfo.proxyPort),
|
||
|
|
Protocol: "TCP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
svcInfo, exists := p.getServiceInfo(service)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("can't find serviceInfo for %s", service)
|
||
|
|
}
|
||
|
|
testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUDPProxyUpdateDeleteUpdate(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
endpoint := api.Endpoints{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: udpServerPort}},
|
||
|
|
}},
|
||
|
|
}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{endpoint})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "UDP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
conn, err := net.Dial("udp", joinHostPort("", svcInfo.proxyPort))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error connecting to proxy: %v", err)
|
||
|
|
}
|
||
|
|
conn.Close()
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{})
|
||
|
|
if err := waitForClosedPortUDP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
// need to add endpoint here because it got clean up during service delete
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{endpoint})
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{ClusterIP: "1.2.3.4", Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: int32(svcInfo.proxyPort),
|
||
|
|
Protocol: "UDP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
svcInfo, exists := p.getServiceInfo(service)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("can't find serviceInfo")
|
||
|
|
}
|
||
|
|
testEchoUDP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestTCPProxyUpdatePort(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{
|
||
|
|
{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: tcpServerPort}},
|
||
|
|
}},
|
||
|
|
},
|
||
|
|
})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "TCP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{ClusterIP: "1.2.3.4", Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: 99,
|
||
|
|
Protocol: "TCP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
// Wait for the socket to actually get free.
|
||
|
|
if err := waitForClosedPortTCP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
svcInfo, exists := p.getServiceInfo(service)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("can't find serviceInfo")
|
||
|
|
}
|
||
|
|
testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
// This is a bit async, but this should be sufficient.
|
||
|
|
time.Sleep(500 * time.Millisecond)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUDPProxyUpdatePort(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{
|
||
|
|
{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: udpServerPort}},
|
||
|
|
}},
|
||
|
|
},
|
||
|
|
})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "UDP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{ClusterIP: "1.2.3.4", Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: 99,
|
||
|
|
Protocol: "UDP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
// Wait for the socket to actually get free.
|
||
|
|
if err := waitForClosedPortUDP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
svcInfo, exists := p.getServiceInfo(service)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("can't find serviceInfo")
|
||
|
|
}
|
||
|
|
testEchoUDP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestProxyUpdatePublicIPs(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{
|
||
|
|
{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: tcpServerPort}},
|
||
|
|
}},
|
||
|
|
},
|
||
|
|
})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "TCP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{
|
||
|
|
Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: int32(svcInfo.portal.port),
|
||
|
|
Protocol: "TCP",
|
||
|
|
}},
|
||
|
|
ClusterIP: svcInfo.portal.ip.String(),
|
||
|
|
ExternalIPs: []string{"4.3.2.1"},
|
||
|
|
},
|
||
|
|
}})
|
||
|
|
// Wait for the socket to actually get free.
|
||
|
|
if err := waitForClosedPortTCP(p, svcInfo.proxyPort); err != nil {
|
||
|
|
t.Fatalf(err.Error())
|
||
|
|
}
|
||
|
|
svcInfo, exists := p.getServiceInfo(service)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("can't find serviceInfo")
|
||
|
|
}
|
||
|
|
testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
// This is a bit async, but this should be sufficient.
|
||
|
|
time.Sleep(500 * time.Millisecond)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestProxyUpdatePortal(t *testing.T) {
|
||
|
|
lb := NewLoadBalancerRR()
|
||
|
|
service := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "testnamespace", Name: "echo"}, Port: "p"}
|
||
|
|
endpoint := api.Endpoints{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Subsets: []api.EndpointSubset{{
|
||
|
|
Addresses: []api.EndpointAddress{{IP: "127.0.0.1"}},
|
||
|
|
Ports: []api.EndpointPort{{Name: "p", Port: tcpServerPort}},
|
||
|
|
}},
|
||
|
|
}
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{endpoint})
|
||
|
|
|
||
|
|
p, err := createProxier(lb, net.ParseIP("0.0.0.0"), ipttest.NewFake(), net.ParseIP("127.0.0.1"), nil, time.Minute, time.Second, udpIdleTimeoutForTest)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
waitForNumProxyLoops(t, p, 0)
|
||
|
|
|
||
|
|
svcInfo, err := p.addServiceOnPort(service, "TCP", 0, time.Second)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("error adding new service: %#v", err)
|
||
|
|
}
|
||
|
|
testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{ClusterIP: "", Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: int32(svcInfo.proxyPort),
|
||
|
|
Protocol: "TCP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
_, exists := p.getServiceInfo(service)
|
||
|
|
if exists {
|
||
|
|
t.Fatalf("service with empty ClusterIP should not be included in the proxy")
|
||
|
|
}
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{ClusterIP: "None", Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: int32(svcInfo.proxyPort),
|
||
|
|
Protocol: "TCP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
_, exists = p.getServiceInfo(service)
|
||
|
|
if exists {
|
||
|
|
t.Fatalf("service with 'None' as ClusterIP should not be included in the proxy")
|
||
|
|
}
|
||
|
|
|
||
|
|
p.OnServiceUpdate([]api.Service{{
|
||
|
|
ObjectMeta: api.ObjectMeta{Name: service.Name, Namespace: service.Namespace},
|
||
|
|
Spec: api.ServiceSpec{ClusterIP: "1.2.3.4", Ports: []api.ServicePort{{
|
||
|
|
Name: "p",
|
||
|
|
Port: int32(svcInfo.proxyPort),
|
||
|
|
Protocol: "TCP",
|
||
|
|
}}},
|
||
|
|
}})
|
||
|
|
lb.OnEndpointsUpdate([]api.Endpoints{endpoint})
|
||
|
|
svcInfo, exists = p.getServiceInfo(service)
|
||
|
|
if !exists {
|
||
|
|
t.Fatalf("service with ClusterIP set not found in the proxy")
|
||
|
|
}
|
||
|
|
testEchoTCP(t, "127.0.0.1", svcInfo.proxyPort)
|
||
|
|
waitForNumProxyLoops(t, p, 1)
|
||
|
|
}
|
||
|
|
|
||
|
|
// TODO(justinsb): Add test for nodePort conflict detection, once we have nodePort wired in
|