traefik/pkg/server/router/router_test.go
Julien Salleyron 6fed76a687 WeightedRoundRobin load balancer
Co-authored-by: Ludovic Fernandez <ldez@users.noreply.github.com>
2019-08-26 01:30:05 -07:00

821 lines
20 KiB
Go

package router
import (
"context"
"io/ioutil"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/containous/traefik/v2/pkg/config/dynamic"
"github.com/containous/traefik/v2/pkg/config/runtime"
"github.com/containous/traefik/v2/pkg/middlewares/accesslog"
"github.com/containous/traefik/v2/pkg/middlewares/requestdecorator"
"github.com/containous/traefik/v2/pkg/responsemodifiers"
"github.com/containous/traefik/v2/pkg/server/middleware"
"github.com/containous/traefik/v2/pkg/server/service"
"github.com/containous/traefik/v2/pkg/testhelpers"
"github.com/containous/traefik/v2/pkg/types"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestRouterManager_Get(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
type ExpectedResult struct {
StatusCode int
RequestHeaders map[string]string
}
testCases := []struct {
desc string
routersConfig map[string]*dynamic.Router
serviceConfig map[string]*dynamic.Service
middlewaresConfig map[string]*dynamic.Middleware
entryPoints []string
expected ExpectedResult
}{
{
desc: "no middleware",
routersConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{StatusCode: http.StatusOK},
},
{
desc: "no load balancer",
routersConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {},
},
entryPoints: []string{"web"},
expected: ExpectedResult{StatusCode: http.StatusNotFound},
},
{
desc: "no middleware, default entry point",
routersConfig: map[string]*dynamic.Router{
"foo": {
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{StatusCode: http.StatusOK},
},
{
desc: "no middleware, no matching",
routersConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`bar.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{StatusCode: http.StatusNotFound},
},
{
desc: "middleware: headers > auth",
routersConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Middlewares: []string{"headers-middle", "auth-middle"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
middlewaresConfig: map[string]*dynamic.Middleware{
"auth-middle": {
BasicAuth: &dynamic.BasicAuth{
Users: []string{"toto:titi"},
},
},
"headers-middle": {
Headers: &dynamic.Headers{
CustomRequestHeaders: map[string]string{"X-Apero": "beer"},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{
StatusCode: http.StatusUnauthorized,
RequestHeaders: map[string]string{
"X-Apero": "beer",
},
},
},
{
desc: "middleware: auth > header",
routersConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Middlewares: []string{"auth-middle", "headers-middle"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
middlewaresConfig: map[string]*dynamic.Middleware{
"auth-middle": {
BasicAuth: &dynamic.BasicAuth{
Users: []string{"toto:titi"},
},
},
"headers-middle": {
Headers: &dynamic.Headers{
CustomRequestHeaders: map[string]string{"X-Apero": "beer"},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{
StatusCode: http.StatusUnauthorized,
RequestHeaders: map[string]string{
"X-Apero": "",
},
},
},
{
desc: "no middleware with provider name",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{StatusCode: http.StatusOK},
},
{
desc: "no middleware with specified provider name",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"web"},
Service: "foo-service@provider-2",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-2": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{StatusCode: http.StatusOK},
},
{
desc: "middleware: chain with provider name",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"web"},
Middlewares: []string{"chain-middle@provider-2", "headers-middle"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
middlewaresConfig: map[string]*dynamic.Middleware{
"chain-middle@provider-2": {
Chain: &dynamic.Chain{Middlewares: []string{"auth-middle"}},
},
"auth-middle@provider-2": {
BasicAuth: &dynamic.BasicAuth{
Users: []string{"toto:titi"},
},
},
"headers-middle@provider-1": {
Headers: &dynamic.Headers{
CustomRequestHeaders: map[string]string{"X-Apero": "beer"},
},
},
},
entryPoints: []string{"web"},
expected: ExpectedResult{
StatusCode: http.StatusUnauthorized,
RequestHeaders: map[string]string{
"X-Apero": "",
},
},
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
rtConf := runtime.NewConfig(dynamic.Configuration{
HTTP: &dynamic.HTTPConfiguration{
Services: test.serviceConfig,
Routers: test.routersConfig,
Middlewares: test.middlewaresConfig,
},
})
serviceManager := service.NewManager(rtConf.Services, http.DefaultTransport, nil)
middlewaresBuilder := middleware.NewBuilder(rtConf.Middlewares, serviceManager)
responseModifierFactory := responsemodifiers.NewBuilder(rtConf.Middlewares)
routerManager := NewManager(rtConf, serviceManager, middlewaresBuilder, responseModifierFactory)
handlers := routerManager.BuildHandlers(context.Background(), test.entryPoints, false)
w := httptest.NewRecorder()
req := testhelpers.MustNewRequest(http.MethodGet, "http://foo.bar/", nil)
reqHost := requestdecorator.New(nil)
reqHost.ServeHTTP(w, req, handlers["web"].ServeHTTP)
assert.Equal(t, test.expected.StatusCode, w.Code)
for key, value := range test.expected.RequestHeaders {
assert.Equal(t, value, req.Header.Get(key))
}
})
}
}
func TestAccessLog(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
testCases := []struct {
desc string
routersConfig map[string]*dynamic.Router
serviceConfig map[string]*dynamic.Service
middlewaresConfig map[string]*dynamic.Middleware
entryPoints []string
expected string
}{
{
desc: "apply routerName in accesslog (first match)",
routersConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`bar.foo`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoints: []string{"web"},
expected: "foo",
},
{
desc: "apply routerName in accesslog (second match)",
routersConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`bar.foo`)",
},
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoints: []string{"web"},
expected: "bar",
},
}
for _, test := range testCases {
t.Run(test.desc, func(t *testing.T) {
rtConf := runtime.NewConfig(dynamic.Configuration{
HTTP: &dynamic.HTTPConfiguration{
Services: test.serviceConfig,
Routers: test.routersConfig,
Middlewares: test.middlewaresConfig,
},
})
serviceManager := service.NewManager(rtConf.Services, http.DefaultTransport, nil)
middlewaresBuilder := middleware.NewBuilder(rtConf.Middlewares, serviceManager)
responseModifierFactory := responsemodifiers.NewBuilder(rtConf.Middlewares)
routerManager := NewManager(rtConf, serviceManager, middlewaresBuilder, responseModifierFactory)
handlers := routerManager.BuildHandlers(context.Background(), test.entryPoints, false)
w := httptest.NewRecorder()
req := testhelpers.MustNewRequest(http.MethodGet, "http://foo.bar/", nil)
accesslogger, err := accesslog.NewHandler(&types.AccessLog{
Format: "json",
})
require.NoError(t, err)
reqHost := requestdecorator.New(nil)
accesslogger.ServeHTTP(w, req, http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
reqHost.ServeHTTP(w, req, handlers["web"].ServeHTTP)
data := accesslog.GetLogData(req)
require.NotNil(t, data)
assert.Equal(t, test.expected, data.Core[accesslog.RouterName])
}))
})
}
}
func TestRuntimeConfiguration(t *testing.T) {
testCases := []struct {
desc string
serviceConfig map[string]*dynamic.Service
routerConfig map[string]*dynamic.Router
middlewareConfig map[string]*dynamic.Middleware
expectedError int
}{
{
desc: "No error",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "http://127.0.0.1:8085",
},
{
URL: "http://127.0.0.1:8086",
},
},
HealthCheck: &dynamic.HealthCheck{
Interval: "500ms",
Path: "/health",
},
},
},
},
routerConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`bar.foo`)",
},
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
expectedError: 0,
},
{
desc: "One router with wrong rule",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "http://127.0.0.1",
},
},
},
},
},
routerConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "WrongRule(`bar.foo`)",
},
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
expectedError: 1,
},
{
desc: "All router with wrong rule",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "http://127.0.0.1",
},
},
},
},
},
routerConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "WrongRule(`bar.foo`)",
},
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "WrongRule(`foo.bar`)",
},
},
expectedError: 2,
},
{
desc: "Router with unknown service",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "http://127.0.0.1",
},
},
},
},
},
routerConfig: map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "wrong-service",
Rule: "Host(`bar.foo`)",
},
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
expectedError: 1,
},
{
desc: "Router with broken service",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: nil,
},
},
routerConfig: map[string]*dynamic.Router{
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
},
},
expectedError: 2,
},
{
desc: "Router with middleware",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "http://127.0.0.1",
},
},
},
},
},
middlewareConfig: map[string]*dynamic.Middleware{
"auth": {
BasicAuth: &dynamic.BasicAuth{
Users: []string{"admin:admin"},
},
},
"addPrefixTest": {
AddPrefix: &dynamic.AddPrefix{
Prefix: "/toto",
},
},
},
routerConfig: map[string]*dynamic.Router{
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Middlewares: []string{"auth", "addPrefixTest"},
},
"test": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar.other`)",
Middlewares: []string{"addPrefixTest", "auth"},
},
},
},
{
desc: "Router with unknown middleware",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "http://127.0.0.1",
},
},
},
},
},
middlewareConfig: map[string]*dynamic.Middleware{
"auth": {
BasicAuth: &dynamic.BasicAuth{
Users: []string{"admin:admin"},
},
},
},
routerConfig: map[string]*dynamic.Router{
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Middlewares: []string{"unknown"},
},
},
expectedError: 1,
},
{
desc: "Router with broken middleware",
serviceConfig: map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "http://127.0.0.1",
},
},
},
},
},
middlewareConfig: map[string]*dynamic.Middleware{
"auth": {
BasicAuth: &dynamic.BasicAuth{
Users: []string{"foo"},
},
},
},
routerConfig: map[string]*dynamic.Router{
"bar": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Middlewares: []string{"auth"},
},
},
expectedError: 2,
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
entryPoints := []string{"web"}
rtConf := runtime.NewConfig(dynamic.Configuration{
HTTP: &dynamic.HTTPConfiguration{
Services: test.serviceConfig,
Routers: test.routerConfig,
Middlewares: test.middlewareConfig,
},
})
serviceManager := service.NewManager(rtConf.Services, http.DefaultTransport, nil)
middlewaresBuilder := middleware.NewBuilder(rtConf.Middlewares, serviceManager)
responseModifierFactory := responsemodifiers.NewBuilder(map[string]*runtime.MiddlewareInfo{})
routerManager := NewManager(rtConf, serviceManager, middlewaresBuilder, responseModifierFactory)
_ = routerManager.BuildHandlers(context.Background(), entryPoints, false)
// even though rtConf was passed by argument to the manager builders above,
// it's ok to use it as the result we check, because everything worth checking
// can be accessed by pointers in it.
var allErrors int
for _, v := range rtConf.Services {
if v.Err != nil {
allErrors++
}
}
for _, v := range rtConf.Routers {
if len(v.Err) > 0 {
allErrors++
}
}
for _, v := range rtConf.Middlewares {
if v.Err != nil {
allErrors++
}
}
assert.Equal(t, test.expectedError, allErrors)
})
}
}
type staticTransport struct {
res *http.Response
}
func (t *staticTransport) RoundTrip(r *http.Request) (*http.Response, error) {
return t.res, nil
}
func BenchmarkRouterServe(b *testing.B) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
res := &http.Response{
StatusCode: 200,
Body: ioutil.NopCloser(strings.NewReader("")),
}
routersConfig := map[string]*dynamic.Router{
"foo": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`) && Path(`/`)",
},
}
serviceConfig := map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
}
entryPoints := []string{"web"}
rtConf := runtime.NewConfig(dynamic.Configuration{
HTTP: &dynamic.HTTPConfiguration{
Services: serviceConfig,
Routers: routersConfig,
Middlewares: map[string]*dynamic.Middleware{},
},
})
serviceManager := service.NewManager(rtConf.Services, &staticTransport{res}, nil)
middlewaresBuilder := middleware.NewBuilder(rtConf.Middlewares, serviceManager)
responseModifierFactory := responsemodifiers.NewBuilder(rtConf.Middlewares)
routerManager := NewManager(rtConf, serviceManager, middlewaresBuilder, responseModifierFactory)
handlers := routerManager.BuildHandlers(context.Background(), entryPoints, false)
w := httptest.NewRecorder()
req := testhelpers.MustNewRequest(http.MethodGet, "http://foo.bar/", nil)
reqHost := requestdecorator.New(nil)
b.ReportAllocs()
for i := 0; i < b.N; i++ {
reqHost.ServeHTTP(w, req, handlers["web"].ServeHTTP)
}
}
func BenchmarkService(b *testing.B) {
res := &http.Response{
StatusCode: 200,
Body: ioutil.NopCloser(strings.NewReader("")),
}
serviceConfig := map[string]*dynamic.Service{
"foo-service": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: "tchouck",
},
},
},
},
}
rtConf := runtime.NewConfig(dynamic.Configuration{
HTTP: &dynamic.HTTPConfiguration{
Services: serviceConfig,
},
})
serviceManager := service.NewManager(rtConf.Services, &staticTransport{res}, nil)
w := httptest.NewRecorder()
req := testhelpers.MustNewRequest(http.MethodGet, "http://foo.bar/", nil)
handler, _ := serviceManager.BuildHTTP(context.Background(), "foo-service", nil)
b.ReportAllocs()
for i := 0; i < b.N; i++ {
handler.ServeHTTP(w, req)
}
}