Merge pull request #153 from PierreZ/master

Fix Issue #150: Add possibility to have REST API in read-only mode

Dockerfile

@@ -1,4 +1,5 @@
 FROM scratch
 COPY script/ca-certificates.crt /etc/ssl/certs/
 COPY dist/traefik /
+EXPOSE 80
 ENTRYPOINT ["/traefik"]

configuration.go

@@ -16,7 +16,7 @@ type GlobalConfiguration struct {
 	GraceTimeOut              int64
 	AccessLogsFile            string
 	TraefikLogsFile           string
-	CertFile, KeyFile         string
+	Certificates              []Certificate
 	LogLevel                  string
 	ProvidersThrottleDuration time.Duration
 	Docker                    *provider.Docker
@@ -29,6 +29,12 @@ type GlobalConfiguration struct {
 	Boltdb                    *provider.BoltDb
 }
 
+// Certificate holds a SSL cert/key pair
+type Certificate struct {
+	CertFile string
+	KeyFile  string
+}
+
 // NewGlobalConfiguration returns a GlobalConfiguration with default values.
 func NewGlobalConfiguration() *GlobalConfiguration {
 	globalConfiguration := new(GlobalConfiguration)

docs/index.md

@@ -102,10 +102,12 @@ For example:
 #
 # logLevel = "ERROR"
 
-# SSL certificate and key used
+# SSL certificates and keys
+# You may add several certificate/key pairs to terminate HTTPS for multiple domain names using TLS SNI
 #
 # Optional
 #
+# [[certificates]]
 # CertFile = "traefik.crt"
 # KeyFile = "traefik.key"
 
@@ -241,6 +243,11 @@ address = ":8080"
 #
 # CertFile = "traefik.crt"
 # KeyFile = "traefik.key"
+#
+# Set REST API to read-only mode
+#
+# Optional
+# ReadOnly = false
 ```
 
 - `/`: provides a simple HTML frontend of Træfik

glide.yaml

@@ -43,7 +43,7 @@ import:
   - package: github.com/alecthomas/units
     ref:     6b4e7dc5e3143b85ea77909c72caf89416fc2915
   - package: github.com/gambol99/go-marathon
-    ref:     0ba31bcb0d7633ba1888d744c42990eb15281cf1
+    ref:     8ce3f764250b2de3f2c627d12ca7dd21bd5e7f93
   - package: github.com/mailgun/predicate
     ref:     cb0bff91a7ab7cf7571e661ff883fc997bc554a3
   - package: github.com/thoas/stats
@@ -142,3 +142,8 @@ import:
   - package: github.com/codahale/hdrhistogram
     ref:     954f16e8b9ef0e5d5189456aa4c1202758e04f17
   - package: github.com/gorilla/websocket
+  - package: github.com/donovanhide/eventsource
+    ref:     d8a3071799b98cacd30b6da92f536050ccfe6da4
+  - package: github.com/golang/glog
+    ref:     fca8c8854093a154ff1eb580aae10276ad6b1b5f
+

integration/fixtures/https/https_sni.toml

@@ -0,0 +1,32 @@
+port = ":443"
+logLevel = "DEBUG"
+
+[[certificates]]
+CertFile = "fixtures/https/snitest.com.cert"
+KeyFile = "fixtures/https/snitest.com.key"
+
+[[certificates]]
+CertFile = "fixtures/https/snitest.org.cert"
+KeyFile = "fixtures/https/snitest.org.key"
+
+[file]
+
+[backends]
+  [backends.backend1]
+    [backends.backend1.servers.server1]
+    url = "http://127.0.0.1:9010"
+  [backends.backend2]
+    [backends.backend2.servers.server1]
+    url = "http://127.0.0.1:9020"
+
+[frontends]
+  [frontends.frontend1]
+  backend = "backend1"
+    [frontends.frontend1.routes.test_1]
+    rule = "Host"
+    value = "snitest.com"
+  [frontends.frontend2]
+  backend = "backend2"
+    [frontends.frontend2.routes.test_2]
+    rule = "Host"
+    value = "snitest.org"

integration/fixtures/https/snitest.com.cert

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIC/zCCAeegAwIBAgIJAL858pci5XyjMA0GCSqGSIb3DQEBBQUAMBYxFDASBgNV
+BAMMC3NuaXRlc3QuY29tMB4XDTE1MTEyMzIyMDU1NloXDTI1MTEyMDIyMDU1Nlow
+FjEUMBIGA1UEAwwLc25pdGVzdC5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
+ggEKAoIBAQDVF25wEroSIUO/dNgHxlyt8pZFVpJ8fNaJw7cnlZ1JP2hLuEbmjAFT
+dHqS8wKDNYHktsBEOUfN/qbk0AiGb+SvhQw6kfM/QSj9fXVQ7KhYP9XYOekTOH7d
+M0Z2L3RGgqs8z+83exOOnAFVvIJCMZJXEeijV6iJlmpCcJa0Kg/JHlxhoWTEeZuU
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+yzgrHQZWJN8Gs8ZZgGdgRf7PHox8xEZtqPiMkChDz6T7Ha3U0xYN6TZGNZOR6DHs
+K9/8
+-----END CERTIFICATE-----

integration/fixtures/https/snitest.com.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpQIBAAKCAQEA1RducBK6EiFDv3TYB8ZcrfKWRVaSfHzWicO3J5WdST9oS7hG
+5owBU3R6kvMCgzWB5LbARDlHzf6m5NAIhm/kr4UMOpHzP0Eo/X11UOyoWD/V2Dnp
+Ezh+3TNGdi90RoKrPM/vN3sTjpwBVbyCQjGSVxHoo1eoiZZqQnCWtCoPyR5cYaFk
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+AMK4tPRYqlsP2fLtqQN1ODBPrfnraoNHtOVE784iBCD5dewICA5RIQG2i/d2+CGF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+-----END RSA PRIVATE KEY-----

integration/fixtures/https/snitest.org.cert

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

integration/fixtures/https/snitest.org.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

integration/https_test.go

@@ -0,0 +1,110 @@
+package main
+
+import (
+	"crypto/tls"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"os/exec"
+	"time"
+
+	checker "github.com/vdemeester/shakers"
+	check "gopkg.in/check.v1"
+)
+
+// HTTPSSuite
+type HTTPSSuite struct{ BaseSuite }
+
+// TestWithSNIConfigHandshake involves a client sending a SNI hostname of
+// "snitest.com", which happens to match the CN of 'snitest.com.crt'. The test
+// verifies that traefik presents the correct certificate.
+func (s *HTTPSSuite) TestWithSNIConfigHandshake(c *check.C) {
+	cmd := exec.Command(traefikBinary, "fixtures/https/https_sni.toml")
+	err := cmd.Start()
+	c.Assert(err, checker.IsNil)
+	defer cmd.Process.Kill()
+
+	time.Sleep(500 * time.Millisecond)
+
+	tlsConfig := &tls.Config{
+		InsecureSkipVerify: true,
+		ServerName:         "snitest.com",
+	}
+	conn, err := tls.Dial("tcp", "127.0.0.1:443", tlsConfig)
+	c.Assert(err, checker.IsNil, check.Commentf("failed to connect to server"))
+
+	defer conn.Close()
+	err = conn.Handshake()
+	c.Assert(err, checker.IsNil, check.Commentf("TLS handshake error"))
+
+	cs := conn.ConnectionState()
+	err = cs.PeerCertificates[0].VerifyHostname("snitest.com")
+	c.Assert(err, checker.IsNil, check.Commentf("certificate did not match SNI servername"))
+}
+
+// TestWithSNIConfigRoute involves a client sending HTTPS requests with
+// SNI hostnames of "snitest.org" and "snitest.com". The test verifies
+// that traefik routes the requests to the expected backends.
+func (s *HTTPSSuite) TestWithSNIConfigRoute(c *check.C) {
+	cmd := exec.Command(traefikBinary, "fixtures/https/https_sni.toml")
+	err := cmd.Start()
+	c.Assert(err, checker.IsNil)
+	defer cmd.Process.Kill()
+
+	backend1 := startTestServer("9010", 204)
+	backend2 := startTestServer("9020", 205)
+	defer backend1.Close()
+	defer backend2.Close()
+
+	time.Sleep(2000 * time.Millisecond)
+
+	tr1 := &http.Transport{
+		TLSClientConfig: &tls.Config{
+			InsecureSkipVerify: true,
+			ServerName:         "snitest.com",
+		},
+	}
+	tr2 := &http.Transport{
+		TLSClientConfig: &tls.Config{
+			InsecureSkipVerify: true,
+			ServerName:         "snitest.org",
+		},
+	}
+
+	client := &http.Client{Transport: tr1}
+	req, _ := http.NewRequest("GET", "https://127.0.0.1/", nil)
+	req.Host = "snitest.com"
+	req.Header.Set("Host", "snitest.com")
+	req.Header.Set("Accept", "*/*")
+	resp, err := client.Do(req)
+	c.Assert(err, checker.IsNil)
+	// Expected a 204 (from backend1)
+	c.Assert(resp.StatusCode, checker.Equals, 204)
+
+	client = &http.Client{Transport: tr2}
+	req, _ = http.NewRequest("GET", "https://127.0.0.1/", nil)
+	req.Host = "snitest.org"
+	req.Header.Set("Host", "snitest.org")
+	req.Header.Set("Accept", "*/*")
+	resp, err = client.Do(req)
+	c.Assert(err, checker.IsNil)
+	// Expected a 205 (from backend2)
+	c.Assert(resp.StatusCode, checker.Equals, 205)
+}
+
+func startTestServer(port string, statusCode int) (ts *httptest.Server) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(statusCode)
+	})
+	listener, err := net.Listen("tcp", "127.0.0.1:"+port)
+	if err != nil {
+		panic(err)
+	}
+
+	ts = &httptest.Server{
+		Listener: listener,
+		Config:   &http.Server{Handler: handler},
+	}
+	ts.Start()
+	return
+}

integration/integration_test.go

@@ -24,6 +24,7 @@ func Test(t *testing.T) {
 
 func init() {
 	check.Suite(&SimpleSuite{})
+	check.Suite(&HTTPSSuite{})
 	check.Suite(&FileSuite{})
 	check.Suite(&DockerSuite{})
 	check.Suite(&ConsulSuite{})

provider/kv.go

@@ -11,7 +11,6 @@ import (
 	"github.com/docker/libkv"
 	"github.com/docker/libkv/store"
 	"github.com/emilevauge/traefik/types"
-	"strconv"
 )
 
 // Kv holds common configurations of key-value providers.
@@ -74,10 +73,9 @@ func (provider *Kv) loadConfig() *types.Configuration {
 		provider.Prefix,
 	}
 	var KvFuncMap = template.FuncMap{
-		"List":    provider.list,
-		"Get":     provider.get,
-		"GetBool": provider.getBool,
-		"Last":    provider.last,
+		"List": provider.list,
+		"Get":  provider.get,
+		"Last": provider.last,
 	}
 
 	configuration, err := provider.getConfiguration("templates/kv.tmpl", KvFuncMap, templateObjects)
@@ -114,16 +112,6 @@ func (provider *Kv) get(keys ...string) string {
 	return string(keyPair.Value)
 }
 
-func (provider *Kv) getBool(keys ...string) bool {
-	value := provider.get(keys...)
-	b, err := strconv.ParseBool(string(value))
-	if err != nil {
-		log.Error("Error getting key: ", strings.Join(keys, ""), err)
-		return false
-	}
-	return b
-}
-
 func (provider *Kv) last(key string) string {
 	splittedKey := strings.Split(key, "/")
 	return splittedKey[len(splittedKey)-1]

provider/kv_test.go

@@ -194,61 +194,6 @@ func TestKvGet(t *testing.T) {
 	}
 }
 
-func TestKvGetBool(t *testing.T) {
-	cases := []struct {
-		provider *Kv
-		keys     []string
-		expected bool
-	}{
-		{
-			provider: &Kv{
-				kvclient: &Mock{
-					KVPairs: []*store.KVPair{
-						{
-							Key:   "foo",
-							Value: []byte("true"),
-						},
-					},
-				},
-			},
-			keys:     []string{"foo"},
-			expected: true,
-		},
-		{
-			provider: &Kv{
-				kvclient: &Mock{
-					KVPairs: []*store.KVPair{
-						{
-							Key:   "foo",
-							Value: []byte("false"),
-						},
-					},
-				},
-			},
-			keys:     []string{"foo"},
-			expected: false,
-		},
-	}
-
-	for _, c := range cases {
-		actual := c.provider.getBool(c.keys...)
-		if actual != c.expected {
-			t.Fatalf("expected %v, got %v for %v and %v", c.expected, actual, c.keys, c.provider)
-		}
-	}
-
-	// Error case
-	provider := &Kv{
-		kvclient: &Mock{
-			Error: true,
-		},
-	}
-	actual := provider.get("anything")
-	if actual != "" {
-		t.Fatalf("Should have return nil, got %v", actual)
-	}
-}
-
 func TestKvLast(t *testing.T) {
 	cases := []struct {
 		key      string

provider/marathon.go

@@ -23,7 +23,7 @@ type Marathon struct {
 
 type lightMarathonClient interface {
 	Applications(url.Values) (*marathon.Applications, error)
-	AllTasks() (*marathon.Tasks, error)
+	AllTasks(v url.Values) (*marathon.Tasks, error)
 }
 
 // Provide allows the provider to provide configurations to traefik
@@ -85,7 +85,7 @@ func (provider *Marathon) loadMarathonConfig() *types.Configuration {
 		return nil
 	}
 
-	tasks, err := provider.marathonClient.AllTasks()
+	tasks, err := provider.marathonClient.AllTasks((url.Values{"status": []string{"running"}}))
 	if err != nil {
 		log.Errorf("Failed to create a client for marathon, error: %s", err)
 		return nil

provider/marathon_test.go

@@ -24,7 +24,7 @@ func (c *fakeClient) Applications(url.Values) (*marathon.Applications, error) {
 	return c.applications, nil
 }
 
-func (c *fakeClient) AllTasks() (*marathon.Tasks, error) {
+func (c *fakeClient) AllTasks(v url.Values) (*marathon.Tasks, error) {
 	if c.tasksError {
 		return nil, errors.New("error")
 	}

templates/kv.tmpl

@@ -28,7 +28,7 @@
     {{$frontend := Last .}}
     [frontends.{{$frontend}}]
     backend = "{{Get . "/backend"}}"
-    passHostHeader = "{{GetBool . "/passHostHeader"}}"
+    passHostHeader = {{Get . "/passHostHeader"}}
     {{$routes := List . "/routes/"}}
         {{range $routes}}
         [frontends.{{$frontend}}.routes.{{Last .}}]

templates/marathon.tmpl

@@ -9,7 +9,7 @@
   [frontends.frontend{{.ID | replace "/" "-"}}]
   backend = "backend{{.ID | replace "/" "-"}}"
   passHostHeader = {{getPassHostHeader .}}
-    [frontends.frontend-{{.ID | replace "/" ""}}.routes.route-host-{{.ID | replace "/" ""}}]
+    [frontends.frontend{{.ID | replace "/" "-"}}.routes.route-host{{.ID | replace "/" "-"}}]
     rule = "{{getFrontendRule .}}"
     value = "{{getFrontendValue .}}"
 {{end}}

traefik.go

@@ -26,6 +26,7 @@ import (
 	"github.com/mailgun/oxy/roundrobin"
 	"github.com/thoas/stats"
 	"gopkg.in/alecthomas/kingpin.v2"
+	"sync"
 )
 
 var (
@@ -53,6 +54,7 @@ func main() {
 	defer close(stopChan)
 	var providers = []provider.Provider{}
 	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
+	var serverLock sync.Mutex
 
 	// load global configuration
 	globalConfiguration := LoadFileConfig(*globalConfigFile)
@@ -124,6 +126,7 @@ func main() {
 
 				newConfigurationRouter, err := LoadConfig(newConfigurations, globalConfiguration)
 				if err == nil {
+					serverLock.Lock()
 					currentConfigurations = newConfigurations
 					configurationRouter = newConfigurationRouter
 					oldServer := srv
@@ -138,6 +141,7 @@ func main() {
 						log.Info("Stopping old server")
 						oldServer.Close()
 					}
+					serverLock.Unlock()
 				} else {
 					log.Error("Error loading new configuration, aborted ", err)
 				}
@@ -199,39 +203,49 @@ func main() {
 	//negroni.Use(middlewares.NewRoutes(configurationRouter))
 
 	var er error
+	serverLock.Lock()
 	srv, er = prepareServer(configurationRouter, globalConfiguration, nil, loggerMiddleware, metrics)
 	if er != nil {
 		log.Fatal("Error preparing server: ", er)
 	}
 	go startServer(srv, globalConfiguration)
+	//TODO change that!
+	time.Sleep(100 * time.Millisecond)
+	serverLock.Unlock()
 
 	<-stopChan
 	log.Info("Shutting down")
 }
 
-func createTLSConfig(certFile string, keyFile string) (*tls.Config, error) {
+// creates a TLS config that allows terminating HTTPS for multiple domains using SNI
+func createTLSConfig(certs []Certificate) (*tls.Config, error) {
+	if len(certs) == 0 {
+		return nil, nil
+	}
+
 	config := &tls.Config{}
 	if config.NextProtos == nil {
 		config.NextProtos = []string{"http/1.1"}
 	}
 
 	var err error
-	config.Certificates = make([]tls.Certificate, 1)
-	if len(certFile) > 0 && len(keyFile) > 0 {
-		config.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
+	config.Certificates = make([]tls.Certificate, len(certs))
+	for i, v := range certs {
+		config.Certificates[i], err = tls.LoadX509KeyPair(v.CertFile, v.KeyFile)
 		if err != nil {
 			return nil, err
 		}
-	} else {
-		return nil, nil
 	}
+	// BuildNameToCertificate parses the CommonName and SubjectAlternateName fields
+	// in each certificate and populates the config.NameToCertificate map.
+	config.BuildNameToCertificate()
 	return config, nil
 }
 
 func startServer(srv *manners.GracefulServer, globalConfiguration *GlobalConfiguration) {
 	log.Info("Starting server")
-	if len(globalConfiguration.CertFile) > 0 && len(globalConfiguration.KeyFile) > 0 {
-		err := srv.ListenAndServeTLS(globalConfiguration.CertFile, globalConfiguration.KeyFile)
+	if srv.TLSConfig != nil {
+		err := srv.ListenAndServeTLSWithConfig(srv.TLSConfig)
 		if err != nil {
 			log.Fatal("Error creating server: ", err)
 		}
@@ -252,7 +266,7 @@ func prepareServer(router *mux.Router, globalConfiguration *GlobalConfiguration,
 		negroni.Use(middleware)
 	}
 	negroni.UseHandler(router)
-	tlsConfig, err := createTLSConfig(globalConfiguration.CertFile, globalConfiguration.KeyFile)
+	tlsConfig, err := createTLSConfig(globalConfiguration.Certificates)
 	if err != nil {
 		log.Fatalf("Error creating TLS config %s", err)
 		return nil, err
@@ -267,8 +281,9 @@ func prepareServer(router *mux.Router, globalConfiguration *GlobalConfiguration,
 			}), nil
 	}
 	server, err := oldServer.HijackListener(&http.Server{
-		Addr:    globalConfiguration.Port,
-		Handler: negroni,
+		Addr:      globalConfiguration.Port,
+		Handler:   negroni,
+		TLSConfig: tlsConfig,
 	}, tlsConfig)
 	if err != nil {
 		log.Fatalf("Error hijacking server %s", err)
@@ -290,7 +305,10 @@ func LoadConfig(configurations configs, globalConfiguration *GlobalConfiguration
 			newRoute := router.NewRoute().Name(frontendName)
 			for routeName, route := range frontend.Routes {
 				log.Debugf("Creating route %s %s:%s", routeName, route.Rule, route.Value)
-				newRouteReflect := Invoke(newRoute, route.Rule, route.Value)
+				newRouteReflect, err := invoke(newRoute, route.Rule, route.Value)
+				if err != nil {
+					return nil, err
+				}
 				newRoute = newRouteReflect[0].Interface().(*mux.Route)
 			}
 			if backends[frontend.Backend] == nil {
@@ -354,10 +372,14 @@ func LoadConfig(configurations configs, globalConfiguration *GlobalConfiguration
 
 // Invoke calls the specified method with the specified arguments on the specified interface.
 // It uses the go(lang) reflect package.
-func Invoke(any interface{}, name string, args ...interface{}) []reflect.Value {
+func invoke(any interface{}, name string, args ...interface{}) ([]reflect.Value, error) {
 	inputs := make([]reflect.Value, len(args))
 	for i := range args {
 		inputs[i] = reflect.ValueOf(args[i])
 	}
-	return reflect.ValueOf(any).MethodByName(name).Call(inputs)
+	method := reflect.ValueOf(any).MethodByName(name)
+	if method.IsValid() {
+		return method.Call(inputs), nil
+	}
+	return nil, errors.New("Method not found: " + name)
 }

traefik.sample.toml

@@ -37,10 +37,12 @@
 #
 # logLevel = "ERROR"
 
-# SSL certificate and key used
+# SSL certificates and keys
+# You may add several certificate/key pairs to terminate HTTPS for multiple domain names using TLS SNI
 #
 # Optional
 #
+# [[certificates]]
 # CertFile = "traefik.crt"
 # KeyFile = "traefik.key"
 

web.go

@@ -19,6 +19,7 @@ import (
 type WebProvider struct {
 	Address           string
 	CertFile, KeyFile string
+	ReadOnly          bool
 }
 
 var (
@@ -40,6 +41,11 @@ func (provider *WebProvider) Provide(configurationChan chan<- types.ConfigMessag
 	systemRouter.Methods("GET").Path("/api/providers").HandlerFunc(getConfigHandler)
 	systemRouter.Methods("GET").Path("/api/providers/{provider}").HandlerFunc(getProviderHandler)
 	systemRouter.Methods("PUT").Path("/api/providers/{provider}").HandlerFunc(func(response http.ResponseWriter, request *http.Request) {
+		if provider.ReadOnly {
+			response.WriteHeader(http.StatusForbidden)
+			fmt.Fprintf(response, "REST API is in read-only mode")
+			return
+		}
 		vars := mux.Vars(request)
 		if vars["provider"] != "web" {
 			response.WriteHeader(http.StatusBadRequest)