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cri-o/vendor/k8s.io/kubernetes/pkg/proxy/iptables/proxier_test.go

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Switch to github.com/golang/dep for vendoring Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
2017-02-01 00:45:59 +00:00
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package iptables
import (
"testing"
"fmt"
"net"
"strings"
"k8s.io/apimachinery/pkg/types"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/service"
"k8s.io/kubernetes/pkg/proxy"
"k8s.io/kubernetes/pkg/util/exec"
"k8s.io/kubernetes/pkg/util/intstr"
utiliptables "k8s.io/kubernetes/pkg/util/iptables"
iptablestest "k8s.io/kubernetes/pkg/util/iptables/testing"
)
func checkAllLines(t *testing.T, table utiliptables.Table, save []byte, expectedLines map[utiliptables.Chain]string) {
chainLines := utiliptables.GetChainLines(table, save)
for chain, line := range chainLines {
if expected, exists := expectedLines[chain]; exists {
if expected != line {
t.Errorf("getChainLines expected chain line not present. For chain: %s Expected: %s Got: %s", chain, expected, line)
}
} else {
t.Errorf("getChainLines expected chain not present: %s", chain)
}
}
}
func TestReadLinesFromByteBuffer(t *testing.T) {
testFn := func(byteArray []byte, expected []string) {
index := 0
readIndex := 0
for ; readIndex < len(byteArray); index++ {
line, n := utiliptables.ReadLine(readIndex, byteArray)
readIndex = n
if expected[index] != line {
t.Errorf("expected:%q, actual:%q", expected[index], line)
}
} // for
if readIndex < len(byteArray) {
t.Errorf("Byte buffer was only partially read. Buffer length is:%d, readIndex is:%d", len(byteArray), readIndex)
}
if index < len(expected) {
t.Errorf("All expected strings were not compared. expected arr length:%d, matched count:%d", len(expected), index-1)
}
}
byteArray1 := []byte("\n Line 1 \n\n\n L ine4 \nLine 5 \n \n")
expected1 := []string{"", "Line 1", "", "", "L ine4", "Line 5", ""}
testFn(byteArray1, expected1)
byteArray1 = []byte("")
expected1 = []string{}
testFn(byteArray1, expected1)
byteArray1 = []byte("\n\n")
expected1 = []string{"", ""}
testFn(byteArray1, expected1)
}
func TestGetChainLines(t *testing.T) {
iptables_save := `# Generated by iptables-save v1.4.7 on Wed Oct 29 14:56:01 2014
*nat
:PREROUTING ACCEPT [2136997:197881818]
:POSTROUTING ACCEPT [4284525:258542680]
:OUTPUT ACCEPT [5901660:357267963]
-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
COMMIT
# Completed on Wed Oct 29 14:56:01 2014`
expected := map[utiliptables.Chain]string{
utiliptables.ChainPrerouting: ":PREROUTING ACCEPT [2136997:197881818]",
utiliptables.ChainPostrouting: ":POSTROUTING ACCEPT [4284525:258542680]",
utiliptables.ChainOutput: ":OUTPUT ACCEPT [5901660:357267963]",
}
checkAllLines(t, utiliptables.TableNAT, []byte(iptables_save), expected)
}
func TestGetChainLinesMultipleTables(t *testing.T) {
iptables_save := `# Generated by iptables-save v1.4.21 on Fri Aug 7 14:47:37 2015
*nat
:PREROUTING ACCEPT [2:138]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:DOCKER - [0:0]
:KUBE-NODEPORT-CONTAINER - [0:0]
:KUBE-NODEPORT-HOST - [0:0]
:KUBE-PORTALS-CONTAINER - [0:0]
:KUBE-PORTALS-HOST - [0:0]
:KUBE-SVC-1111111111111111 - [0:0]
:KUBE-SVC-2222222222222222 - [0:0]
:KUBE-SVC-3333333333333333 - [0:0]
:KUBE-SVC-4444444444444444 - [0:0]
:KUBE-SVC-5555555555555555 - [0:0]
:KUBE-SVC-6666666666666666 - [0:0]
-A PREROUTING -m comment --comment "handle ClusterIPs; NOTE: this must be before the NodePort rules" -j KUBE-PORTALS-CONTAINER
-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
-A PREROUTING -m addrtype --dst-type LOCAL -m comment --comment "handle service NodePorts; NOTE: this must be the last rule in the chain" -j KUBE-NODEPORT-CONTAINER
-A OUTPUT -m comment --comment "handle ClusterIPs; NOTE: this must be before the NodePort rules" -j KUBE-PORTALS-HOST
-A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
-A OUTPUT -m addrtype --dst-type LOCAL -m comment --comment "handle service NodePorts; NOTE: this must be the last rule in the chain" -j KUBE-NODEPORT-HOST
-A POSTROUTING -s 10.246.1.0/24 ! -o cbr0 -j MASQUERADE
-A POSTROUTING -s 10.0.2.15/32 -d 10.0.2.15/32 -m comment --comment "handle pod connecting to self" -j MASQUERADE
-A KUBE-PORTALS-CONTAINER -d 10.247.0.1/32 -p tcp -m comment --comment "portal for default/kubernetes:" -m state --state NEW -m tcp --dport 443 -j KUBE-SVC-5555555555555555
-A KUBE-PORTALS-CONTAINER -d 10.247.0.10/32 -p udp -m comment --comment "portal for kube-system/kube-dns:dns" -m state --state NEW -m udp --dport 53 -j KUBE-SVC-6666666666666666
-A KUBE-PORTALS-CONTAINER -d 10.247.0.10/32 -p tcp -m comment --comment "portal for kube-system/kube-dns:dns-tcp" -m state --state NEW -m tcp --dport 53 -j KUBE-SVC-2222222222222222
-A KUBE-PORTALS-HOST -d 10.247.0.1/32 -p tcp -m comment --comment "portal for default/kubernetes:" -m state --state NEW -m tcp --dport 443 -j KUBE-SVC-5555555555555555
-A KUBE-PORTALS-HOST -d 10.247.0.10/32 -p udp -m comment --comment "portal for kube-system/kube-dns:dns" -m state --state NEW -m udp --dport 53 -j KUBE-SVC-6666666666666666
-A KUBE-PORTALS-HOST -d 10.247.0.10/32 -p tcp -m comment --comment "portal for kube-system/kube-dns:dns-tcp" -m state --state NEW -m tcp --dport 53 -j KUBE-SVC-2222222222222222
-A KUBE-SVC-1111111111111111 -p udp -m comment --comment "kube-system/kube-dns:dns" -m recent --set --name KUBE-SVC-1111111111111111 --mask 255.255.255.255 --rsource -j DNAT --to-destination 10.246.1.2:53
-A KUBE-SVC-2222222222222222 -m comment --comment "kube-system/kube-dns:dns-tcp" -j KUBE-SVC-3333333333333333
-A KUBE-SVC-3333333333333333 -p tcp -m comment --comment "kube-system/kube-dns:dns-tcp" -m recent --set --name KUBE-SVC-3333333333333333 --mask 255.255.255.255 --rsource -j DNAT --to-destination 10.246.1.2:53
-A KUBE-SVC-4444444444444444 -p tcp -m comment --comment "default/kubernetes:" -m recent --set --name KUBE-SVC-4444444444444444 --mask 255.255.255.255 --rsource -j DNAT --to-destination 10.245.1.2:443
-A KUBE-SVC-5555555555555555 -m comment --comment "default/kubernetes:" -j KUBE-SVC-4444444444444444
-A KUBE-SVC-6666666666666666 -m comment --comment "kube-system/kube-dns:dns" -j KUBE-SVC-1111111111111111
COMMIT
# Completed on Fri Aug 7 14:47:37 2015
# Generated by iptables-save v1.4.21 on Fri Aug 7 14:47:37 2015
*filter
:INPUT ACCEPT [17514:83115836]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [8909:688225]
:DOCKER - [0:0]
-A FORWARD -o cbr0 -j DOCKER
-A FORWARD -o cbr0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i cbr0 ! -o cbr0 -j ACCEPT
-A FORWARD -i cbr0 -o cbr0 -j ACCEPT
COMMIT
`
expected := map[utiliptables.Chain]string{
utiliptables.ChainPrerouting: ":PREROUTING ACCEPT [2:138]",
utiliptables.Chain("INPUT"): ":INPUT ACCEPT [0:0]",
utiliptables.Chain("OUTPUT"): ":OUTPUT ACCEPT [0:0]",
utiliptables.ChainPostrouting: ":POSTROUTING ACCEPT [0:0]",
utiliptables.Chain("DOCKER"): ":DOCKER - [0:0]",
utiliptables.Chain("KUBE-NODEPORT-CONTAINER"): ":KUBE-NODEPORT-CONTAINER - [0:0]",
utiliptables.Chain("KUBE-NODEPORT-HOST"): ":KUBE-NODEPORT-HOST - [0:0]",
utiliptables.Chain("KUBE-PORTALS-CONTAINER"): ":KUBE-PORTALS-CONTAINER - [0:0]",
utiliptables.Chain("KUBE-PORTALS-HOST"): ":KUBE-PORTALS-HOST - [0:0]",
utiliptables.Chain("KUBE-SVC-1111111111111111"): ":KUBE-SVC-1111111111111111 - [0:0]",
utiliptables.Chain("KUBE-SVC-2222222222222222"): ":KUBE-SVC-2222222222222222 - [0:0]",
utiliptables.Chain("KUBE-SVC-3333333333333333"): ":KUBE-SVC-3333333333333333 - [0:0]",
utiliptables.Chain("KUBE-SVC-4444444444444444"): ":KUBE-SVC-4444444444444444 - [0:0]",
utiliptables.Chain("KUBE-SVC-5555555555555555"): ":KUBE-SVC-5555555555555555 - [0:0]",
utiliptables.Chain("KUBE-SVC-6666666666666666"): ":KUBE-SVC-6666666666666666 - [0:0]",
}
checkAllLines(t, utiliptables.TableNAT, []byte(iptables_save), expected)
}
func TestGetRemovedEndpoints(t *testing.T) {
testCases := []struct {
currentEndpoints []string
newEndpoints []string
removedEndpoints []string
}{
{
currentEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80"},
newEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80"},
removedEndpoints: []string{},
},
{
currentEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80", "10.0.2.3:80"},
newEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80"},
removedEndpoints: []string{"10.0.2.3:80"},
},
{
currentEndpoints: []string{},
newEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80"},
removedEndpoints: []string{},
},
{
currentEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80"},
newEndpoints: []string{},
removedEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80"},
},
{
currentEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80", "10.0.2.2:443"},
newEndpoints: []string{"10.0.2.1:80", "10.0.2.2:80"},
removedEndpoints: []string{"10.0.2.2:443"},
},
}
for i := range testCases {
res := getRemovedEndpoints(testCases[i].currentEndpoints, testCases[i].newEndpoints)
if !slicesEquiv(res, testCases[i].removedEndpoints) {
t.Errorf("Expected: %v, but getRemovedEndpoints returned: %v", testCases[i].removedEndpoints, res)
}
}
}
func TestExecConntrackTool(t *testing.T) {
fcmd := exec.FakeCmd{
CombinedOutputScript: []exec.FakeCombinedOutputAction{
func() ([]byte, error) { return []byte("1 flow entries have been deleted"), nil },
func() ([]byte, error) { return []byte("1 flow entries have been deleted"), nil },
func() ([]byte, error) {
return []byte(""), fmt.Errorf("conntrack v1.4.2 (conntrack-tools): 0 flow entries have been deleted.")
},
},
}
fexec := exec.FakeExec{
CommandScript: []exec.FakeCommandAction{
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
},
LookPathFunc: func(cmd string) (string, error) { return cmd, nil },
}
fakeProxier := Proxier{exec: &fexec}
testCases := [][]string{
{"-L", "-p", "udp"},
{"-D", "-p", "udp", "-d", "10.0.240.1"},
{"-D", "-p", "udp", "--orig-dst", "10.240.0.2", "--dst-nat", "10.0.10.2"},
}
expectErr := []bool{false, false, true}
for i := range testCases {
err := fakeProxier.execConntrackTool(testCases[i]...)
if expectErr[i] {
if err == nil {
t.Errorf("expected err, got %v", err)
}
} else {
if err != nil {
t.Errorf("expected success, got %v", err)
}
}
execCmd := strings.Join(fcmd.CombinedOutputLog[i], " ")
expectCmd := fmt.Sprintf("%s %s", "conntrack", strings.Join(testCases[i], " "))
if execCmd != expectCmd {
t.Errorf("expect execute command: %s, but got: %s", expectCmd, execCmd)
}
}
}
func newFakeServiceInfo(service proxy.ServicePortName, ip net.IP, port int, protocol api.Protocol, onlyNodeLocalEndpoints bool) *serviceInfo {
return &serviceInfo{
sessionAffinityType: api.ServiceAffinityNone, // default
stickyMaxAgeMinutes: 180, // TODO: paramaterize this in the API.
clusterIP: ip,
port: port,
protocol: protocol,
onlyNodeLocalEndpoints: onlyNodeLocalEndpoints,
}
}
func TestDeleteEndpointConnections(t *testing.T) {
fcmd := exec.FakeCmd{
CombinedOutputScript: []exec.FakeCombinedOutputAction{
func() ([]byte, error) { return []byte("1 flow entries have been deleted"), nil },
func() ([]byte, error) {
return []byte(""), fmt.Errorf("conntrack v1.4.2 (conntrack-tools): 0 flow entries have been deleted.")
},
},
}
fexec := exec.FakeExec{
CommandScript: []exec.FakeCommandAction{
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
},
LookPathFunc: func(cmd string) (string, error) { return cmd, nil },
}
serviceMap := make(map[proxy.ServicePortName]*serviceInfo)
svc1 := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: "svc1"}, Port: "80"}
svc2 := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: "svc2"}, Port: "80"}
serviceMap[svc1] = newFakeServiceInfo(svc1, net.IPv4(10, 20, 30, 40), 80, api.ProtocolUDP, false)
serviceMap[svc2] = newFakeServiceInfo(svc1, net.IPv4(10, 20, 30, 41), 80, api.ProtocolTCP, false)
fakeProxier := Proxier{exec: &fexec, serviceMap: serviceMap}
testCases := []endpointServicePair{
{
endpoint: "10.240.0.3:80",
servicePortName: svc1,
},
{
endpoint: "10.240.0.4:80",
servicePortName: svc1,
},
{
endpoint: "10.240.0.5:80",
servicePortName: svc2,
},
}
expectCommandExecCount := 0
for i := range testCases {
input := map[endpointServicePair]bool{testCases[i]: true}
fakeProxier.deleteEndpointConnections(input)
svcInfo := fakeProxier.serviceMap[testCases[i].servicePortName]
if svcInfo.protocol == api.ProtocolUDP {
svcIp := svcInfo.clusterIP.String()
endpointIp := strings.Split(testCases[i].endpoint, ":")[0]
expectCommand := fmt.Sprintf("conntrack -D --orig-dst %s --dst-nat %s -p udp", svcIp, endpointIp)
execCommand := strings.Join(fcmd.CombinedOutputLog[expectCommandExecCount], " ")
if expectCommand != execCommand {
t.Errorf("Exepect comand: %s, but executed %s", expectCommand, execCommand)
}
expectCommandExecCount += 1
}
if expectCommandExecCount != fexec.CommandCalls {
t.Errorf("Exepect comand executed %d times, but got %d", expectCommandExecCount, fexec.CommandCalls)
}
}
}
func TestDeleteServiceConnections(t *testing.T) {
fcmd := exec.FakeCmd{
CombinedOutputScript: []exec.FakeCombinedOutputAction{
func() ([]byte, error) { return []byte("1 flow entries have been deleted"), nil },
func() ([]byte, error) { return []byte("1 flow entries have been deleted"), nil },
func() ([]byte, error) {
return []byte(""), fmt.Errorf("conntrack v1.4.2 (conntrack-tools): 0 flow entries have been deleted.")
},
},
}
fexec := exec.FakeExec{
CommandScript: []exec.FakeCommandAction{
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
func(cmd string, args ...string) exec.Cmd { return exec.InitFakeCmd(&fcmd, cmd, args...) },
},
LookPathFunc: func(cmd string) (string, error) { return cmd, nil },
}
fakeProxier := Proxier{exec: &fexec}
testCases := [][]string{
{
"10.240.0.3",
"10.240.0.5",
},
{
"10.240.0.4",
},
}
svcCount := 0
for i := range testCases {
fakeProxier.deleteServiceConnections(testCases[i])
for _, ip := range testCases[i] {
expectCommand := fmt.Sprintf("conntrack -D --orig-dst %s -p udp", ip)
execCommand := strings.Join(fcmd.CombinedOutputLog[svcCount], " ")
if expectCommand != execCommand {
t.Errorf("Exepect comand: %s, but executed %s", expectCommand, execCommand)
}
svcCount += 1
}
if svcCount != fexec.CommandCalls {
t.Errorf("Exepect comand executed %d times, but got %d", svcCount, fexec.CommandCalls)
}
}
}
type fakeClosable struct {
closed bool
}
func (c *fakeClosable) Close() error {
c.closed = true
return nil
}
func TestRevertPorts(t *testing.T) {
testCases := []struct {
replacementPorts []localPort
existingPorts []localPort
expectToBeClose []bool
}{
{
replacementPorts: []localPort{
{port: 5001},
{port: 5002},
{port: 5003},
},
existingPorts: []localPort{},
expectToBeClose: []bool{true, true, true},
},
{
replacementPorts: []localPort{},
existingPorts: []localPort{
{port: 5001},
{port: 5002},
{port: 5003},
},
expectToBeClose: []bool{},
},
{
replacementPorts: []localPort{
{port: 5001},
{port: 5002},
{port: 5003},
},
existingPorts: []localPort{
{port: 5001},
{port: 5002},
{port: 5003},
},
expectToBeClose: []bool{false, false, false},
},
{
replacementPorts: []localPort{
{port: 5001},
{port: 5002},
{port: 5003},
},
existingPorts: []localPort{
{port: 5001},
{port: 5003},
},
expectToBeClose: []bool{false, true, false},
},
{
replacementPorts: []localPort{
{port: 5001},
{port: 5002},
{port: 5003},
},
existingPorts: []localPort{
{port: 5001},
{port: 5002},
{port: 5003},
{port: 5004},
},
expectToBeClose: []bool{false, false, false},
},
}
for i, tc := range testCases {
replacementPortsMap := make(map[localPort]closeable)
for _, lp := range tc.replacementPorts {
replacementPortsMap[lp] = &fakeClosable{}
}
existingPortsMap := make(map[localPort]closeable)
for _, lp := range tc.existingPorts {
existingPortsMap[lp] = &fakeClosable{}
}
revertPorts(replacementPortsMap, existingPortsMap)
for j, expectation := range tc.expectToBeClose {
if replacementPortsMap[tc.replacementPorts[j]].(*fakeClosable).closed != expectation {
t.Errorf("Expect replacement localport %v to be %v in test case %v", tc.replacementPorts[j], expectation, i)
}
}
for _, lp := range tc.existingPorts {
if existingPortsMap[lp].(*fakeClosable).closed == true {
t.Errorf("Expect existing localport %v to be false in test case %v", lp, i)
}
}
}
}
// fakePortOpener implements portOpener.
type fakePortOpener struct {
openPorts []*localPort
}
// OpenLocalPort fakes out the listen() and bind() used by syncProxyRules
// to lock a local port.
func (f *fakePortOpener) OpenLocalPort(lp *localPort) (closeable, error) {
f.openPorts = append(f.openPorts, lp)
return nil, nil
}
func NewFakeProxier(ipt utiliptables.Interface) *Proxier {
// TODO: Call NewProxier after refactoring out the goroutine
// invocation into a Run() method.
return &Proxier{
exec: &exec.FakeExec{},
serviceMap: make(map[proxy.ServicePortName]*serviceInfo),
iptables: ipt,
endpointsMap: make(map[proxy.ServicePortName][]*endpointsInfo),
clusterCIDR: "10.0.0.0/24",
haveReceivedEndpointsUpdate: true,
haveReceivedServiceUpdate: true,
hostname: "test-hostname",
portsMap: make(map[localPort]closeable),
portMapper: &fakePortOpener{[]*localPort{}},
}
}
func hasJump(rules []iptablestest.Rule, destChain, destIP, destPort string) bool {
match := false
for _, r := range rules {
if r[iptablestest.Jump] == destChain {
match = true
if destIP != "" {
if strings.Contains(r[iptablestest.Destination], destIP) && (strings.Contains(r[iptablestest.DPort], destPort) || r[iptablestest.DPort] == "") {
return true
}
match = false
}
if destPort != "" {
if strings.Contains(r[iptablestest.DPort], destPort) && (strings.Contains(r[iptablestest.Destination], destIP) || r[iptablestest.Destination] == "") {
return true
}
match = false
}
}
}
return match
}
func TestHasJump(t *testing.T) {
testCases := map[string]struct {
rules []iptablestest.Rule
destChain string
destIP string
destPort string
expected bool
}{
"case 1": {
// Match the 1st rule(both dest IP and dest Port)
rules: []iptablestest.Rule{
{"-d ": "10.20.30.41/32", "--dport ": "80", "-p ": "tcp", "-j ": "REJECT"},
{"--dport ": "3001", "-p ": "tcp", "-j ": "KUBE-MARK-MASQ"},
},
destChain: "REJECT",
destIP: "10.20.30.41",
destPort: "80",
expected: true,
},
"case 2": {
// Match the 2nd rule(dest Port)
rules: []iptablestest.Rule{
{"-d ": "10.20.30.41/32", "-p ": "tcp", "-j ": "REJECT"},
{"--dport ": "3001", "-p ": "tcp", "-j ": "REJECT"},
},
destChain: "REJECT",
destIP: "",
destPort: "3001",
expected: true,
},
"case 3": {
// Match both dest IP and dest Port
rules: []iptablestest.Rule{
{"-d ": "1.2.3.4/32", "--dport ": "80", "-p ": "tcp", "-j ": "KUBE-XLB-GF53O3C2HZEXL2XN"},
},
destChain: "KUBE-XLB-GF53O3C2HZEXL2XN",
destIP: "1.2.3.4",
destPort: "80",
expected: true,
},
"case 4": {
// Match dest IP but doesn't match dest Port
rules: []iptablestest.Rule{
{"-d ": "1.2.3.4/32", "--dport ": "80", "-p ": "tcp", "-j ": "KUBE-XLB-GF53O3C2HZEXL2XN"},
},
destChain: "KUBE-XLB-GF53O3C2HZEXL2XN",
destIP: "1.2.3.4",
destPort: "8080",
expected: false,
},
"case 5": {
// Match dest Port but doesn't match dest IP
rules: []iptablestest.Rule{
{"-d ": "1.2.3.4/32", "--dport ": "80", "-p ": "tcp", "-j ": "KUBE-XLB-GF53O3C2HZEXL2XN"},
},
destChain: "KUBE-XLB-GF53O3C2HZEXL2XN",
destIP: "10.20.30.40",
destPort: "80",
expected: false,
},
"case 6": {
// Match the 2nd rule(dest IP)
rules: []iptablestest.Rule{
{"-d ": "10.20.30.41/32", "-p ": "tcp", "-j ": "REJECT"},
{"-d ": "1.2.3.4/32", "-p ": "tcp", "-j ": "REJECT"},
{"--dport ": "3001", "-p ": "tcp", "-j ": "REJECT"},
},
destChain: "REJECT",
destIP: "1.2.3.4",
destPort: "8080",
expected: true,
},
"case 7": {
// Match the 2nd rule(dest Port)
rules: []iptablestest.Rule{
{"-d ": "10.20.30.41/32", "-p ": "tcp", "-j ": "REJECT"},
{"--dport ": "3001", "-p ": "tcp", "-j ": "REJECT"},
},
destChain: "REJECT",
destIP: "1.2.3.4",
destPort: "3001",
expected: true,
},
"case 8": {
// Match the 1st rule(dest IP)
rules: []iptablestest.Rule{
{"-d ": "10.20.30.41/32", "-p ": "tcp", "-j ": "REJECT"},
{"--dport ": "3001", "-p ": "tcp", "-j ": "REJECT"},
},
destChain: "REJECT",
destIP: "10.20.30.41",
destPort: "8080",
expected: true,
},
"case 9": {
rules: []iptablestest.Rule{
{"-j ": "KUBE-SEP-LWSOSDSHMKPJHHJV"},
},
destChain: "KUBE-SEP-LWSOSDSHMKPJHHJV",
destIP: "",
destPort: "",
expected: true,
},
"case 10": {
rules: []iptablestest.Rule{
{"-j ": "KUBE-SEP-FOO"},
},
destChain: "KUBE-SEP-BAR",
destIP: "",
destPort: "",
expected: false,
},
}
for k, tc := range testCases {
if got := hasJump(tc.rules, tc.destChain, tc.destIP, tc.destPort); got != tc.expected {
t.Errorf("%v: expected %v, got %v", k, tc.expected, got)
}
}
}
func hasDNAT(rules []iptablestest.Rule, endpoint string) bool {
for _, r := range rules {
if r[iptablestest.ToDest] == endpoint {
return true
}
}
return false
}
func errorf(msg string, rules []iptablestest.Rule, t *testing.T) {
for _, r := range rules {
t.Logf("%v", r)
}
t.Errorf("%v", msg)
}
func TestClusterIPReject(t *testing.T) {
ipt := iptablestest.NewFake()
fp := NewFakeProxier(ipt)
svcName := "svc1"
svcIP := net.IPv4(10, 20, 30, 41)
svc := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: svcName}, Port: "80"}
fp.serviceMap[svc] = newFakeServiceInfo(svc, svcIP, 80, api.ProtocolTCP, false)
fp.syncProxyRules()
svcChain := string(servicePortChainName(svc, strings.ToLower(string(api.ProtocolTCP))))
svcRules := ipt.GetRules(svcChain)
if len(svcRules) != 0 {
errorf(fmt.Sprintf("Unexpected rule for chain %v service %v without endpoints", svcChain, svcName), svcRules, t)
}
kubeSvcRules := ipt.GetRules(string(kubeServicesChain))
if !hasJump(kubeSvcRules, iptablestest.Reject, svcIP.String(), "80") {
errorf(fmt.Sprintf("Failed to find a %v rule for service %v with no endpoints", iptablestest.Reject, svcName), kubeSvcRules, t)
}
}
func TestClusterIPEndpointsJump(t *testing.T) {
ipt := iptablestest.NewFake()
fp := NewFakeProxier(ipt)
svcName := "svc1"
svcIP := net.IPv4(10, 20, 30, 41)
svc := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: svcName}, Port: "80"}
fp.serviceMap[svc] = newFakeServiceInfo(svc, svcIP, 80, api.ProtocolTCP, true)
ep := "10.180.0.1:80"
fp.endpointsMap[svc] = []*endpointsInfo{{ep, false}}
fp.syncProxyRules()
svcChain := string(servicePortChainName(svc, strings.ToLower(string(api.ProtocolTCP))))
epChain := string(servicePortEndpointChainName(svc, strings.ToLower(string(api.ProtocolTCP)), ep))
kubeSvcRules := ipt.GetRules(string(kubeServicesChain))
if !hasJump(kubeSvcRules, svcChain, svcIP.String(), "80") {
errorf(fmt.Sprintf("Failed to find jump from KUBE-SERVICES to %v chain", svcChain), kubeSvcRules, t)
}
svcRules := ipt.GetRules(svcChain)
if !hasJump(svcRules, epChain, "", "") {
errorf(fmt.Sprintf("Failed to jump to ep chain %v", epChain), svcRules, t)
}
epRules := ipt.GetRules(epChain)
if !hasDNAT(epRules, ep) {
errorf(fmt.Sprintf("Endpoint chain %v lacks DNAT to %v", epChain, ep), epRules, t)
}
}
func typeLoadBalancer(svcInfo *serviceInfo) *serviceInfo {
svcInfo.nodePort = 3001
svcInfo.loadBalancerStatus = api.LoadBalancerStatus{
Ingress: []api.LoadBalancerIngress{{IP: "1.2.3.4"}},
}
return svcInfo
}
func TestLoadBalancer(t *testing.T) {
ipt := iptablestest.NewFake()
fp := NewFakeProxier(ipt)
svcName := "svc1"
svcIP := net.IPv4(10, 20, 30, 41)
svc := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: svcName}, Port: "80"}
svcInfo := newFakeServiceInfo(svc, svcIP, 80, api.ProtocolTCP, false)
fp.serviceMap[svc] = typeLoadBalancer(svcInfo)
ep1 := "10.180.0.1:80"
fp.endpointsMap[svc] = []*endpointsInfo{{ep1, false}}
fp.syncProxyRules()
proto := strings.ToLower(string(api.ProtocolTCP))
fwChain := string(serviceFirewallChainName(svc, proto))
svcChain := string(servicePortChainName(svc, strings.ToLower(string(api.ProtocolTCP))))
//lbChain := string(serviceLBChainName(svc, proto))
kubeSvcRules := ipt.GetRules(string(kubeServicesChain))
if !hasJump(kubeSvcRules, fwChain, svcInfo.loadBalancerStatus.Ingress[0].IP, "80") {
errorf(fmt.Sprintf("Failed to find jump to firewall chain %v", fwChain), kubeSvcRules, t)
}
fwRules := ipt.GetRules(fwChain)
if !hasJump(fwRules, svcChain, "", "") || !hasJump(fwRules, string(KubeMarkMasqChain), "", "") {
errorf(fmt.Sprintf("Failed to find jump from firewall chain %v to svc chain %v", fwChain, svcChain), fwRules, t)
}
}
func TestNodePort(t *testing.T) {
ipt := iptablestest.NewFake()
fp := NewFakeProxier(ipt)
svcName := "svc1"
svcIP := net.IPv4(10, 20, 30, 41)
svc := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: svcName}, Port: "80"}
svcInfo := newFakeServiceInfo(svc, svcIP, 80, api.ProtocolTCP, false)
svcInfo.nodePort = 3001
fp.serviceMap[svc] = svcInfo
ep1 := "10.180.0.1:80"
fp.endpointsMap[svc] = []*endpointsInfo{{ep1, false}}
fp.syncProxyRules()
proto := strings.ToLower(string(api.ProtocolTCP))
svcChain := string(servicePortChainName(svc, strings.ToLower(proto)))
kubeNodePortRules := ipt.GetRules(string(kubeNodePortsChain))
if !hasJump(kubeNodePortRules, svcChain, "", fmt.Sprintf("%v", svcInfo.nodePort)) {
errorf(fmt.Sprintf("Failed to find jump to svc chain %v", svcChain), kubeNodePortRules, t)
}
}
func TestOnlyLocalLoadBalancing(t *testing.T) {
ipt := iptablestest.NewFake()
fp := NewFakeProxier(ipt)
svcName := "svc1"
svcIP := net.IPv4(10, 20, 30, 41)
svc := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: svcName}, Port: "80"}
svcInfo := newFakeServiceInfo(svc, svcIP, 80, api.ProtocolTCP, true)
fp.serviceMap[svc] = typeLoadBalancer(svcInfo)
nonLocalEp := "10.180.0.1:80"
localEp := "10.180.2.1:80"
fp.endpointsMap[svc] = []*endpointsInfo{{nonLocalEp, false}, {localEp, true}}
fp.syncProxyRules()
proto := strings.ToLower(string(api.ProtocolTCP))
fwChain := string(serviceFirewallChainName(svc, proto))
lbChain := string(serviceLBChainName(svc, proto))
nonLocalEpChain := string(servicePortEndpointChainName(svc, strings.ToLower(string(api.ProtocolTCP)), nonLocalEp))
localEpChain := string(servicePortEndpointChainName(svc, strings.ToLower(string(api.ProtocolTCP)), localEp))
kubeSvcRules := ipt.GetRules(string(kubeServicesChain))
if !hasJump(kubeSvcRules, fwChain, svcInfo.loadBalancerStatus.Ingress[0].IP, "") {
errorf(fmt.Sprintf("Failed to find jump to firewall chain %v", fwChain), kubeSvcRules, t)
}
fwRules := ipt.GetRules(fwChain)
if !hasJump(fwRules, lbChain, "", "") {
errorf(fmt.Sprintf("Failed to find jump from firewall chain %v to svc chain %v", fwChain, lbChain), fwRules, t)
}
if hasJump(fwRules, string(KubeMarkMasqChain), "", "") {
errorf(fmt.Sprintf("Found jump from fw chain %v to MASQUERADE", fwChain), fwRules, t)
}
lbRules := ipt.GetRules(lbChain)
if hasJump(lbRules, nonLocalEpChain, "", "") {
errorf(fmt.Sprintf("Found jump from lb chain %v to non-local ep %v", lbChain, nonLocalEp), lbRules, t)
}
if !hasJump(lbRules, localEpChain, "", "") {
errorf(fmt.Sprintf("Didn't find jump from lb chain %v to local ep %v", lbChain, nonLocalEp), lbRules, t)
}
}
func TestOnlyLocalNodePortsNoClusterCIDR(t *testing.T) {
ipt := iptablestest.NewFake()
fp := NewFakeProxier(ipt)
// set cluster CIDR to empty before test
fp.clusterCIDR = ""
onlyLocalNodePorts(t, fp, ipt)
}
func TestOnlyLocalNodePorts(t *testing.T) {
ipt := iptablestest.NewFake()
fp := NewFakeProxier(ipt)
onlyLocalNodePorts(t, fp, ipt)
}
func onlyLocalNodePorts(t *testing.T, fp *Proxier, ipt *iptablestest.FakeIPTables) {
shouldLBTOSVCRuleExist := len(fp.clusterCIDR) > 0
svcName := "svc1"
svcIP := net.IPv4(10, 20, 30, 41)
svc := proxy.ServicePortName{NamespacedName: types.NamespacedName{Namespace: "ns1", Name: svcName}, Port: "80"}
svcInfo := newFakeServiceInfo(svc, svcIP, 80, api.ProtocolTCP, true)
svcInfo.nodePort = 3001
fp.serviceMap[svc] = svcInfo
nonLocalEp := "10.180.0.1:80"
localEp := "10.180.2.1:80"
fp.endpointsMap[svc] = []*endpointsInfo{{nonLocalEp, false}, {localEp, true}}
fp.syncProxyRules()
proto := strings.ToLower(string(api.ProtocolTCP))
lbChain := string(serviceLBChainName(svc, proto))
nonLocalEpChain := string(servicePortEndpointChainName(svc, strings.ToLower(string(api.ProtocolTCP)), nonLocalEp))
localEpChain := string(servicePortEndpointChainName(svc, strings.ToLower(string(api.ProtocolTCP)), localEp))
kubeNodePortRules := ipt.GetRules(string(kubeNodePortsChain))
if !hasJump(kubeNodePortRules, lbChain, "", fmt.Sprintf("%v", svcInfo.nodePort)) {
errorf(fmt.Sprintf("Failed to find jump to lb chain %v", lbChain), kubeNodePortRules, t)
}
svcChain := string(servicePortChainName(svc, strings.ToLower(string(api.ProtocolTCP))))
lbRules := ipt.GetRules(lbChain)
if hasJump(lbRules, nonLocalEpChain, "", "") {
errorf(fmt.Sprintf("Found jump from lb chain %v to non-local ep %v", lbChain, nonLocalEp), lbRules, t)
}
if hasJump(lbRules, svcChain, "", "") != shouldLBTOSVCRuleExist {
prefix := "Did not find "
if !shouldLBTOSVCRuleExist {
prefix = "Found "
}
errorf(fmt.Sprintf("%s jump from lb chain %v to svc %v", prefix, lbChain, svcChain), lbRules, t)
}
if !hasJump(lbRules, localEpChain, "", "") {
errorf(fmt.Sprintf("Didn't find jump from lb chain %v to local ep %v", lbChain, nonLocalEp), lbRules, t)
}
}
func makeTestService(namespace, name string, svcFunc func(*api.Service)) api.Service {
svc := api.Service{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: namespace,
},
Spec: api.ServiceSpec{},
Status: api.ServiceStatus{},
}
svcFunc(&svc)
return svc
}
func addTestPort(array []api.ServicePort, name string, protocol api.Protocol, port, nodeport int32, targetPort int) []api.ServicePort {
svcPort := api.ServicePort{
Name: name,
Protocol: protocol,
Port: port,
NodePort: nodeport,
TargetPort: intstr.FromInt(targetPort),
}
return append(array, svcPort)
}
func TestBuildServiceMapAddRemove(t *testing.T) {
services := []api.Service{
makeTestService("somewhere-else", "cluster-ip", func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeClusterIP
svc.Spec.ClusterIP = "172.16.55.4"
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "something", "UDP", 1234, 4321, 0)
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "somethingelse", "UDP", 1235, 5321, 0)
}),
makeTestService("somewhere-else", "node-port", func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeNodePort
svc.Spec.ClusterIP = "172.16.55.10"
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "blahblah", "UDP", 345, 678, 0)
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "moreblahblah", "TCP", 344, 677, 0)
}),
makeTestService("somewhere", "load-balancer", func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeLoadBalancer
svc.Spec.ClusterIP = "172.16.55.11"
svc.Spec.LoadBalancerIP = "5.6.7.8"
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "foobar", "UDP", 8675, 30061, 7000)
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "baz", "UDP", 8676, 30062, 7001)
svc.Status.LoadBalancer = api.LoadBalancerStatus{
Ingress: []api.LoadBalancerIngress{
{IP: "10.1.2.4"},
},
}
}),
makeTestService("somewhere", "only-local-load-balancer", func(svc *api.Service) {
svc.ObjectMeta.Annotations = map[string]string{
service.BetaAnnotationExternalTraffic: service.AnnotationValueExternalTrafficLocal,
service.BetaAnnotationHealthCheckNodePort: "345",
}
svc.Spec.Type = api.ServiceTypeLoadBalancer
svc.Spec.ClusterIP = "172.16.55.12"
svc.Spec.LoadBalancerIP = "5.6.7.8"
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "foobar2", "UDP", 8677, 30063, 7002)
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "baz", "UDP", 8678, 30064, 7003)
svc.Status.LoadBalancer = api.LoadBalancerStatus{
Ingress: []api.LoadBalancerIngress{
{IP: "10.1.2.3"},
},
}
}),
}
serviceMap, hcAdd, hcDel, staleUDPServices := buildServiceMap(services, make(proxyServiceMap))
if len(serviceMap) != 8 {
t.Errorf("expected service map length 8, got %v", serviceMap)
}
// The only-local-loadbalancer ones get added
if len(hcAdd) != 2 {
t.Errorf("expected healthcheck add length 2, got %v", hcAdd)
} else {
for _, hc := range hcAdd {
if hc.namespace.Namespace != "somewhere" || hc.namespace.Name != "only-local-load-balancer" {
t.Errorf("unexpected healthcheck listener added: %v", hc)
}
}
}
// All the rest get deleted
if len(hcDel) != 6 {
t.Errorf("expected healthcheck del length 6, got %v", hcDel)
} else {
for _, hc := range hcDel {
if hc.namespace.Namespace == "somewhere" && hc.namespace.Name == "only-local-load-balancer" {
t.Errorf("unexpected healthcheck listener deleted: %v", hc)
}
}
}
if len(staleUDPServices) != 0 {
// Services only added, so nothing stale yet
t.Errorf("expected stale UDP services length 0, got %d", len(staleUDPServices))
}
// Remove some stuff
services = []api.Service{services[0]}
services[0].Spec.Ports = []api.ServicePort{services[0].Spec.Ports[1]}
serviceMap, hcAdd, hcDel, staleUDPServices = buildServiceMap(services, serviceMap)
if len(serviceMap) != 1 {
t.Errorf("expected service map length 1, got %v", serviceMap)
}
if len(hcAdd) != 0 {
t.Errorf("expected healthcheck add length 1, got %v", hcAdd)
}
// The only OnlyLocal annotation was removed above, so we expect a delete now.
// FIXME: Since the BetaAnnotationHealthCheckNodePort is the same for all
// ServicePorts, we'll get one delete per ServicePort, even though they all
// contain the same information
if len(hcDel) != 2 {
t.Errorf("expected healthcheck del length 2, got %v", hcDel)
} else {
for _, hc := range hcDel {
if hc.namespace.Namespace != "somewhere" || hc.namespace.Name != "only-local-load-balancer" {
t.Errorf("unexpected healthcheck listener deleted: %v", hc)
}
}
}
// All services but one were deleted. While you'd expect only the ClusterIPs
// from the three deleted services here, we still have the ClusterIP for
// the not-deleted service, because one of it's ServicePorts was deleted.
expectedStaleUDPServices := []string{"172.16.55.10", "172.16.55.4", "172.16.55.11", "172.16.55.12"}
if len(staleUDPServices) != len(expectedStaleUDPServices) {
t.Errorf("expected stale UDP services length %d, got %v", len(expectedStaleUDPServices), staleUDPServices.List())
}
for _, ip := range expectedStaleUDPServices {
if !staleUDPServices.Has(ip) {
t.Errorf("expected stale UDP service service %s", ip)
}
}
}
func TestBuildServiceMapServiceHeadless(t *testing.T) {
services := []api.Service{
makeTestService("somewhere-else", "headless", func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeClusterIP
svc.Spec.ClusterIP = api.ClusterIPNone
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "rpc", "UDP", 1234, 0, 0)
}),
}
// Headless service should be ignored
serviceMap, hcAdd, hcDel, staleUDPServices := buildServiceMap(services, make(proxyServiceMap))
if len(serviceMap) != 0 {
t.Errorf("expected service map length 0, got %d", len(serviceMap))
}
// No proxied services, so no healthchecks
if len(hcAdd) != 0 {
t.Errorf("expected healthcheck add length 0, got %d", len(hcAdd))
}
if len(hcDel) != 0 {
t.Errorf("expected healthcheck del length 0, got %d", len(hcDel))
}
if len(staleUDPServices) != 0 {
t.Errorf("expected stale UDP services length 0, got %d", len(staleUDPServices))
}
}
func TestBuildServiceMapServiceTypeExternalName(t *testing.T) {
services := []api.Service{
makeTestService("somewhere-else", "external-name", func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeExternalName
svc.Spec.ClusterIP = "172.16.55.4" // Should be ignored
svc.Spec.ExternalName = "foo2.bar.com"
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "blah", "UDP", 1235, 5321, 0)
}),
}
serviceMap, hcAdd, hcDel, staleUDPServices := buildServiceMap(services, make(proxyServiceMap))
if len(serviceMap) != 0 {
t.Errorf("expected service map length 0, got %v", serviceMap)
}
// No proxied services, so no healthchecks
if len(hcAdd) != 0 {
t.Errorf("expected healthcheck add length 0, got %v", hcAdd)
}
if len(hcDel) != 0 {
t.Errorf("expected healthcheck del length 0, got %v", hcDel)
}
if len(staleUDPServices) != 0 {
t.Errorf("expected stale UDP services length 0, got %v", staleUDPServices)
}
}
func TestBuildServiceMapServiceUpdate(t *testing.T) {
first := []api.Service{
makeTestService("somewhere", "some-service", func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeClusterIP
svc.Spec.ClusterIP = "172.16.55.4"
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "something", "UDP", 1234, 4321, 0)
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "somethingelse", "TCP", 1235, 5321, 0)
}),
}
second := []api.Service{
makeTestService("somewhere", "some-service", func(svc *api.Service) {
svc.ObjectMeta.Annotations = map[string]string{
service.BetaAnnotationExternalTraffic: service.AnnotationValueExternalTrafficLocal,
service.BetaAnnotationHealthCheckNodePort: "345",
}
svc.Spec.Type = api.ServiceTypeLoadBalancer
svc.Spec.ClusterIP = "172.16.55.4"
svc.Spec.LoadBalancerIP = "5.6.7.8"
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "something", "UDP", 1234, 4321, 7002)
svc.Spec.Ports = addTestPort(svc.Spec.Ports, "somethingelse", "TCP", 1235, 5321, 7003)
svc.Status.LoadBalancer = api.LoadBalancerStatus{
Ingress: []api.LoadBalancerIngress{
{IP: "10.1.2.3"},
},
}
}),
}
serviceMap, hcAdd, hcDel, staleUDPServices := buildServiceMap(first, make(proxyServiceMap))
if len(serviceMap) != 2 {
t.Errorf("expected service map length 2, got %v", serviceMap)
}
if len(hcAdd) != 0 {
t.Errorf("expected healthcheck add length 0, got %v", hcAdd)
}
if len(hcDel) != 2 {
t.Errorf("expected healthcheck del length 2, got %v", hcDel)
}
if len(staleUDPServices) != 0 {
// Services only added, so nothing stale yet
t.Errorf("expected stale UDP services length 0, got %d", len(staleUDPServices))
}
// Change service to load-balancer
serviceMap, hcAdd, hcDel, staleUDPServices = buildServiceMap(second, serviceMap)
if len(serviceMap) != 2 {
t.Errorf("expected service map length 2, got %v", serviceMap)
}
if len(hcAdd) != 2 {
t.Errorf("expected healthcheck add length 2, got %v", hcAdd)
}
if len(hcDel) != 0 {
t.Errorf("expected healthcheck add length 2, got %v", hcDel)
}
if len(staleUDPServices) != 0 {
t.Errorf("expected stale UDP services length 0, got %v", staleUDPServices.List())
}
// No change; make sure the service map stays the same and there are
// no health-check changes
serviceMap, hcAdd, hcDel, staleUDPServices = buildServiceMap(second, serviceMap)
if len(serviceMap) != 2 {
t.Errorf("expected service map length 2, got %v", serviceMap)
}
if len(hcAdd) != 0 {
t.Errorf("expected healthcheck add length 0, got %v", hcAdd)
}
if len(hcDel) != 0 {
t.Errorf("expected healthcheck add length 2, got %v", hcDel)
}
if len(staleUDPServices) != 0 {
t.Errorf("expected stale UDP services length 0, got %v", staleUDPServices.List())
}
// And back to ClusterIP
serviceMap, hcAdd, hcDel, staleUDPServices = buildServiceMap(first, serviceMap)
if len(serviceMap) != 2 {
t.Errorf("expected service map length 2, got %v", serviceMap)
}
if len(hcAdd) != 0 {
t.Errorf("expected healthcheck add length 0, got %v", hcAdd)
}
if len(hcDel) != 2 {
t.Errorf("expected healthcheck del length 2, got %v", hcDel)
}
if len(staleUDPServices) != 0 {
// Services only added, so nothing stale yet
t.Errorf("expected stale UDP services length 0, got %d", len(staleUDPServices))
}
}
// TODO(thockin): add *more* tests for syncProxyRules() or break it down further and test the pieces.
Reference in a new issue Copy permalink