traefik/server/server_configuration_test.go

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package server
import (
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"time"
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"github.com/containous/flaeg/parse"
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"github.com/containous/mux"
"github.com/containous/traefik/configuration"
"github.com/containous/traefik/healthcheck"
"github.com/containous/traefik/middlewares"
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"github.com/containous/traefik/rules"
th "github.com/containous/traefik/testhelpers"
"github.com/containous/traefik/tls"
"github.com/containous/traefik/types"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/vulcand/oxy/roundrobin"
)
// LocalhostCert is a PEM-encoded TLS cert with SAN IPs
// "127.0.0.1" and "[::1]", expiring at Jan 29 16:00:00 2084 GMT.
// generated from src/crypto/tls:
// go run generate_cert.go --rsa-bits 1024 --host 127.0.0.1,::1,example.com --ca --start-date "Jan 1 00:00:00 1970" --duration=1000000h
var (
localhostCert = tls.FileOrContent(`-----BEGIN CERTIFICATE-----
MIICEzCCAXygAwIBAgIQMIMChMLGrR+QvmQvpwAU6zANBgkqhkiG9w0BAQsFADAS
MRAwDgYDVQQKEwdBY21lIENvMCAXDTcwMDEwMTAwMDAwMFoYDzIwODQwMTI5MTYw
MDAwWjASMRAwDgYDVQQKEwdBY21lIENvMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB
iQKBgQDuLnQAI3mDgey3VBzWnB2L39JUU4txjeVE6myuDqkM/uGlfjb9SjY1bIw4
iA5sBBZzHi3z0h1YV8QPuxEbi4nW91IJm2gsvvZhIrCHS3l6afab4pZBl2+XsDul
rKBxKKtD1rGxlG4LjncdabFn9gvLZad2bSysqz/qTAUStTvqJQIDAQABo2gwZjAO
BgNVHQ8BAf8EBAMCAqQwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDwYDVR0TAQH/BAUw
AwEB/zAuBgNVHREEJzAlggtleGFtcGxlLmNvbYcEfwAAAYcQAAAAAAAAAAAAAAAA
AAAAATANBgkqhkiG9w0BAQsFAAOBgQCEcetwO59EWk7WiJsG4x8SY+UIAA+flUI9
tyC4lNhbcF2Idq9greZwbYCqTTTr2XiRNSMLCOjKyI7ukPoPjo16ocHj+P3vZGfs
h1fIw3cSS2OolhloGw/XM6RWPWtPAlGykKLciQrBru5NAPvCMsb/I1DAceTiotQM
fblo6RBxUQ==
-----END CERTIFICATE-----`)
// LocalhostKey is the private key for localhostCert.
localhostKey = tls.FileOrContent(`-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`)
)
type testLoadBalancer struct{}
func (lb *testLoadBalancer) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// noop
}
func (lb *testLoadBalancer) RemoveServer(u *url.URL) error {
return nil
}
func (lb *testLoadBalancer) UpsertServer(u *url.URL, options ...roundrobin.ServerOption) error {
return nil
}
func (lb *testLoadBalancer) Servers() []*url.URL {
return []*url.URL{}
}
func TestServerLoadConfigHealthCheckOptions(t *testing.T) {
healthChecks := []*types.HealthCheck{
nil,
{
Path: "/path",
},
}
for _, lbMethod := range []string{"Wrr", "Drr"} {
for _, healthCheck := range healthChecks {
t.Run(fmt.Sprintf("%s/hc=%t", lbMethod, healthCheck != nil), func(t *testing.T) {
globalConfig := configuration.GlobalConfiguration{
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HealthCheck: &configuration.HealthCheckConfig{
Interval: parse.Duration(5 * time.Second),
Timeout: parse.Duration(3 * time.Second),
},
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}
entryPoints := map[string]EntryPoint{
"http": {
Configuration: &configuration.EntryPoint{
ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true},
},
},
}
dynamicConfigs := types.Configurations{
"config": &types.Configuration{
Frontends: map[string]*types.Frontend{
"frontend": {
EntryPoints: []string{"http"},
Backend: "backend",
},
},
Backends: map[string]*types.Backend{
"backend": {
Servers: map[string]types.Server{
"server": {
URL: "http://localhost",
},
},
LoadBalancer: &types.LoadBalancer{
Method: lbMethod,
},
HealthCheck: healthCheck,
},
},
TLS: []*tls.Configuration{
{
Certificate: &tls.Certificate{
CertFile: localhostCert,
KeyFile: localhostKey,
},
EntryPoints: []string{"http"},
},
},
},
}
srv := NewServer(globalConfig, nil, entryPoints)
_, err := srv.loadConfig(dynamicConfigs, globalConfig)
require.NoError(t, err)
expectedNumHealthCheckBackends := 0
if healthCheck != nil {
expectedNumHealthCheckBackends = 1
}
assert.Len(t, healthcheck.GetHealthCheck(th.NewCollectingHealthCheckMetrics()).Backends, expectedNumHealthCheckBackends, "health check backends")
})
}
}
}
func TestServerLoadConfigEmptyBasicAuth(t *testing.T) {
globalConfig := configuration.GlobalConfiguration{
EntryPoints: configuration.EntryPoints{
"http": &configuration.EntryPoint{ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true}},
},
}
dynamicConfigs := types.Configurations{
"config": &types.Configuration{
Frontends: map[string]*types.Frontend{
"frontend": {
EntryPoints: []string{"http"},
Backend: "backend",
},
},
Backends: map[string]*types.Backend{
"backend": {
Servers: map[string]types.Server{
"server": {
URL: "http://localhost",
},
},
LoadBalancer: &types.LoadBalancer{
Method: "Wrr",
},
},
},
},
}
entryPoints := map[string]EntryPoint{}
for key, value := range globalConfig.EntryPoints {
entryPoints[key] = EntryPoint{
Configuration: value,
}
}
srv := NewServer(globalConfig, nil, entryPoints)
_, err := srv.loadConfig(dynamicConfigs, globalConfig)
require.NoError(t, err)
}
func TestServerLoadCertificateWithDefaultEntryPoint(t *testing.T) {
globalConfig := configuration.GlobalConfiguration{
DefaultEntryPoints: []string{"http", "https"},
}
entryPoints := map[string]EntryPoint{
"https": {Configuration: &configuration.EntryPoint{TLS: &tls.TLS{}}},
"http": {Configuration: &configuration.EntryPoint{}},
}
dynamicConfigs := types.Configurations{
"config": &types.Configuration{
TLS: []*tls.Configuration{
{
Certificate: &tls.Certificate{
CertFile: localhostCert,
KeyFile: localhostKey,
},
},
},
},
}
srv := NewServer(globalConfig, nil, entryPoints)
if mapEntryPoints, err := srv.loadConfig(dynamicConfigs, globalConfig); err != nil {
t.Fatalf("got error: %s", err)
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} else if !mapEntryPoints["https"].certs.ContainsCertificates() {
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t.Fatal("got error: https entryPoint must have TLS certificates.")
}
}
func TestReuseBackend(t *testing.T) {
testServer := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
rw.WriteHeader(http.StatusOK)
}))
defer testServer.Close()
globalConfig := configuration.GlobalConfiguration{
DefaultEntryPoints: []string{"http"},
}
entryPoints := map[string]EntryPoint{
"http": {Configuration: &configuration.EntryPoint{
ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true},
}},
}
dynamicConfigs := types.Configurations{
"config": th.BuildConfiguration(
th.WithFrontends(
th.WithFrontend("backend",
th.WithFrontendName("frontend0"),
th.WithEntryPoints("http"),
th.WithRoutes(th.WithRoute("/ok", "Path: /ok"))),
th.WithFrontend("backend",
th.WithFrontendName("frontend1"),
th.WithEntryPoints("http"),
th.WithRoutes(th.WithRoute("/unauthorized", "Path: /unauthorized")),
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th.WithFrontEndAuth(&types.Auth{
Basic: &types.Basic{
Users: []string{"foo:bar"},
},
})),
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),
th.WithBackends(th.WithBackendNew("backend",
th.WithLBMethod("wrr"),
th.WithServersNew(th.WithServerNew(testServer.URL))),
),
),
}
srv := NewServer(globalConfig, nil, entryPoints)
serverEntryPoints, err := srv.loadConfig(dynamicConfigs, globalConfig)
if err != nil {
t.Fatalf("error loading config: %s", err)
}
// Test that the /ok path returns a status 200.
responseRecorderOk := &httptest.ResponseRecorder{}
requestOk := httptest.NewRequest(http.MethodGet, testServer.URL+"/ok", nil)
serverEntryPoints["http"].httpRouter.ServeHTTP(responseRecorderOk, requestOk)
assert.Equal(t, http.StatusOK, responseRecorderOk.Result().StatusCode, "status code")
// Test that the /unauthorized path returns a 401 because of
// the basic authentication defined on the frontend.
responseRecorderUnauthorized := &httptest.ResponseRecorder{}
requestUnauthorized := httptest.NewRequest(http.MethodGet, testServer.URL+"/unauthorized", nil)
serverEntryPoints["http"].httpRouter.ServeHTTP(responseRecorderUnauthorized, requestUnauthorized)
assert.Equal(t, http.StatusUnauthorized, responseRecorderUnauthorized.Result().StatusCode, "status code")
}
func TestThrottleProviderConfigReload(t *testing.T) {
throttleDuration := 30 * time.Millisecond
publishConfig := make(chan types.ConfigMessage)
providerConfig := make(chan types.ConfigMessage)
stop := make(chan bool)
defer func() {
stop <- true
}()
globalConfig := configuration.GlobalConfiguration{}
server := NewServer(globalConfig, nil, nil)
go server.throttleProviderConfigReload(throttleDuration, publishConfig, providerConfig, stop)
publishedConfigCount := 0
stopConsumeConfigs := make(chan bool)
go func() {
for {
select {
case <-stop:
return
case <-stopConsumeConfigs:
return
case <-publishConfig:
publishedConfigCount++
}
}
}()
// publish 5 new configs, one new config each 10 milliseconds
for i := 0; i < 5; i++ {
providerConfig <- types.ConfigMessage{}
time.Sleep(10 * time.Millisecond)
}
// after 50 milliseconds 5 new configs were published
// with a throttle duration of 30 milliseconds this means, we should have received 2 new configs
assert.Equal(t, 2, publishedConfigCount, "times configs were published")
stopConsumeConfigs <- true
select {
case <-publishConfig:
// There should be exactly one more message that we receive after ~60 milliseconds since the start of the test.
select {
case <-publishConfig:
t.Error("extra config publication found")
case <-time.After(100 * time.Millisecond):
return
}
case <-time.After(100 * time.Millisecond):
t.Error("Last config was not published in time")
}
}
func TestServerMultipleFrontendRules(t *testing.T) {
testCases := []struct {
expression string
requestURL string
expectedURL string
}{
{
expression: "Host:foo.bar",
requestURL: "http://foo.bar",
expectedURL: "http://foo.bar",
},
{
expression: "PathPrefix:/management;ReplacePath:/health",
requestURL: "http://foo.bar/management",
expectedURL: "http://foo.bar/health",
},
{
expression: "Host:foo.bar;AddPrefix:/blah",
requestURL: "http://foo.bar/baz",
expectedURL: "http://foo.bar/blah/baz",
},
{
expression: "PathPrefixStripRegex:/one/{two}/{three:[0-9]+}",
requestURL: "http://foo.bar/one/some/12345/four",
expectedURL: "http://foo.bar/four",
},
{
expression: "PathPrefixStripRegex:/one/{two}/{three:[0-9]+};AddPrefix:/zero",
requestURL: "http://foo.bar/one/some/12345/four",
expectedURL: "http://foo.bar/zero/four",
},
{
expression: "AddPrefix:/blah;ReplacePath:/baz",
requestURL: "http://foo.bar/hello",
expectedURL: "http://foo.bar/baz",
},
{
expression: "PathPrefixStrip:/management;ReplacePath:/health",
requestURL: "http://foo.bar/management",
expectedURL: "http://foo.bar/health",
},
}
for _, test := range testCases {
test := test
t.Run(test.expression, func(t *testing.T) {
t.Parallel()
router := mux.NewRouter()
route := router.NewRoute()
serverRoute := &types.ServerRoute{Route: route}
reqHostMid := &middlewares.RequestHost{}
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rls := &rules.Rules{Route: serverRoute}
expression := test.expression
routeResult, err := rls.Parse(expression)
if err != nil {
t.Fatalf("Error while building route for %s: %+v", expression, err)
}
request := th.MustNewRequest(http.MethodGet, test.requestURL, nil)
var routeMatch bool
reqHostMid.ServeHTTP(nil, request, func(w http.ResponseWriter, r *http.Request) {
routeMatch = routeResult.Match(r, &mux.RouteMatch{Route: routeResult})
})
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if !routeMatch {
t.Fatalf("Rule %s doesn't match", expression)
}
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, test.expectedURL, r.URL.String(), "URL")
})
hd := buildMatcherMiddlewares(serverRoute, handler)
serverRoute.Route.Handler(hd)
serverRoute.Route.GetHandler().ServeHTTP(nil, request)
})
}
}
func TestServerBuildHealthCheckOptions(t *testing.T) {
lb := &testLoadBalancer{}
globalInterval := 15 * time.Second
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globalTimeout := 3 * time.Second
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testCases := []struct {
desc string
hc *types.HealthCheck
expectedOpts *healthcheck.Options
}{
{
desc: "nil health check",
hc: nil,
expectedOpts: nil,
},
{
desc: "empty path",
hc: &types.HealthCheck{
Path: "",
},
expectedOpts: nil,
},
{
desc: "unparseable interval",
hc: &types.HealthCheck{
Path: "/path",
Interval: "unparseable",
},
expectedOpts: &healthcheck.Options{
Path: "/path",
Interval: globalInterval,
LB: lb,
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Timeout: 3 * time.Second,
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},
},
{
desc: "sub-zero interval",
hc: &types.HealthCheck{
Path: "/path",
Interval: "-42s",
},
expectedOpts: &healthcheck.Options{
Path: "/path",
Interval: globalInterval,
LB: lb,
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Timeout: 3 * time.Second,
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},
},
{
desc: "parseable interval",
hc: &types.HealthCheck{
Path: "/path",
Interval: "5m",
},
expectedOpts: &healthcheck.Options{
Path: "/path",
Interval: 5 * time.Minute,
LB: lb,
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Timeout: 3 * time.Second,
},
},
{
desc: "unparseable timeout",
hc: &types.HealthCheck{
Path: "/path",
Interval: "15s",
Timeout: "unparseable",
},
expectedOpts: &healthcheck.Options{
Path: "/path",
Interval: globalInterval,
Timeout: globalTimeout,
LB: lb,
},
},
{
desc: "sub-zero timeout",
hc: &types.HealthCheck{
Path: "/path",
Interval: "15s",
Timeout: "-42s",
},
expectedOpts: &healthcheck.Options{
Path: "/path",
Interval: globalInterval,
Timeout: globalTimeout,
LB: lb,
},
},
{
desc: "parseable timeout",
hc: &types.HealthCheck{
Path: "/path",
Interval: "15s",
Timeout: "10s",
},
expectedOpts: &healthcheck.Options{
Path: "/path",
Interval: globalInterval,
Timeout: 10 * time.Second,
LB: lb,
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},
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
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opts := buildHealthCheckOptions(lb, "backend", test.hc, &configuration.HealthCheckConfig{
Interval: parse.Duration(globalInterval),
Timeout: parse.Duration(globalTimeout),
})
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assert.Equal(t, test.expectedOpts, opts, "health check options")
})
}
}