Merge branch 'v1.3' into merge-back-1_3_0-rc3

2017-05-24 20:39:38 +02:00 · 2017-05-24 20:39:38 +02:00 · 2833d68f15
commit 2833d68f15
parent 64e8b31d49 dbfd2663c2
17 changed files with 357 additions and 195 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,5 +1,24 @@
 # Change Log

+## [v1.3.0-rc3](https://github.com/containous/traefik/tree/v1.3.0-rc3) (2017-05-24)
+[All Commits](https://github.com/containous/traefik/compare/v1.3.0-rc2...v1.3.0-rc3)
+
+**Enhancements:**
+- [#1658](https://api.github.com/repos/containous/traefik/issues/1658) Get testify/require dependency. ([timoreimann](https://api.github.com/users/timoreimann))
+
+**Bug fixes:**
+- [#1507](https://api.github.com/repos/containous/traefik/issues/1507) Create log folder if not present ([tanyadegurechaff](https://api.github.com/users/tanyadegurechaff))
+- [#1604](https://api.github.com/repos/containous/traefik/issues/1604) [k8s] Ignore Ingresses with empty Endpoint subsets. ([timoreimann](https://api.github.com/users/timoreimann))
+- [#1630](https://api.github.com/repos/containous/traefik/issues/1630) [k8s] Remove rule type path list. ([timoreimann](https://api.github.com/users/timoreimann))
+- [#1635](https://api.github.com/repos/containous/traefik/issues/1635) Upgrade go-marathon to 15ea23e. ([timoreimann](https://api.github.com/users/timoreimann))
+- [#1638](https://api.github.com/repos/containous/traefik/issues/1638) Fix behavior for PathPrefixStrip ([seryl](https://api.github.com/users/seryl))
+- [#1654](https://api.github.com/repos/containous/traefik/issues/1654) fix: Empty Rancher Service Labels. ([ldez](https://api.github.com/users/ldez))
+
+**Documentation:**
+- [#1578](https://api.github.com/repos/containous/traefik/issues/1578) Add Marathon guide. ([Stibbons](https://api.github.com/users/Stibbons))
+- [#1602](https://api.github.com/repos/containous/traefik/issues/1602) Re Orginise k8s docs to make 1.6 usage easier ([errm](https://api.github.com/users/errm))
+- [#1642](https://api.github.com/repos/containous/traefik/issues/1642) Update changelog ([ldez](https://api.github.com/users/ldez))
+
 ## [v1.3.0-rc2](https://github.com/containous/traefik/tree/v1.3.0-rc2) (2017-05-16)
 [All Commits](https://github.com/containous/traefik/compare/v1.3.0-rc1...v1.3.0-rc2)

--- a/glide.lock
+++ b/glide.lock
@ -1,5 +1,5 @@
 hash: e59e8244152a823cd3633fb09cdd583c4e5be78d7b50fb7047ba6b6a9ed5e8ec
-updated: 2017-05-02T11:46:23.91434995-04:00
+updated: 2017-05-19T23:30:19.890844996+02:00
 imports:
 - name: cloud.google.com/go
  version: 2e6a95edb1071d750f6d7db777bf66cd2997af6c
@ -201,7 +201,7 @@ imports:
 - name: github.com/fatih/color
  version: 9131ab34cf20d2f6d83fdc67168a5430d1c7dc23
 - name: github.com/gambol99/go-marathon
-  version: d672c6fbb499596869d95146a26e7d0746c06c54
+  version: 15ea23e360abb8b25071e677aed344f31838e403
 - name: github.com/ghodss/yaml
  version: 73d445a93680fa1a78ae23a5839bad48f32ba1ee
 - name: github.com/go-ini/ini
--- a/middlewares/stripPrefix.go
+++ b/middlewares/stripPrefix.go
@ -17,17 +17,29 @@ type StripPrefix struct {

 func (s *StripPrefix) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	for _, prefix := range s.Prefixes {
-		if p := strings.TrimPrefix(r.URL.Path, strings.TrimSpace(prefix)); len(p) < len(r.URL.Path) {
-			r.URL.Path = p
-			r.Header[forwardedPrefixHeader] = []string{prefix}
-			r.RequestURI = r.URL.RequestURI()
-			s.Handler.ServeHTTP(w, r)
+		origPrefix := strings.TrimSpace(prefix)
+		if origPrefix == r.URL.Path {
+			r.URL.Path = "/"
+			s.serveRequest(w, r, origPrefix)
+			return
+		}
+
+		prefix = strings.TrimSuffix(origPrefix, "/") + "/"
+		if p := strings.TrimPrefix(r.URL.Path, prefix); len(p) < len(r.URL.Path) {
+			r.URL.Path = "/" + strings.TrimPrefix(p, "/")
+			s.serveRequest(w, r, origPrefix)
 			return
 		}
 	}
 	http.NotFound(w, r)
 }

+func (s *StripPrefix) serveRequest(w http.ResponseWriter, r *http.Request, prefix string) {
+	r.Header[forwardedPrefixHeader] = []string{prefix}
+	r.RequestURI = r.URL.RequestURI()
+	s.Handler.ServeHTTP(w, r)
+}
+
 // SetHandler sets handler
 func (s *StripPrefix) SetHandler(Handler http.Handler) {
 	s.Handler = Handler
--- a/middlewares/stripPrefix_test.go
+++ b/middlewares/stripPrefix_test.go
@ -0,0 +1,103 @@
+package middlewares
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestStripPrefix(t *testing.T) {
+	tests := []struct {
+		desc               string
+		prefixes           []string
+		path               string
+		expectedStatusCode int
+		expectedPath       string
+	}{
+		{
+			desc:               "no prefixes configured",
+			prefixes:           []string{},
+			path:               "/noprefixes",
+			expectedStatusCode: http.StatusNotFound,
+		},
+		{
+			desc:               "wildcard (.*) requests",
+			prefixes:           []string{"/"},
+			path:               "/",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "/",
+		},
+		{
+			desc:               "prefix and path matching",
+			prefixes:           []string{"/stat"},
+			path:               "/stat",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "/",
+		},
+		{
+			desc:               "path prefix on exactly matching path",
+			prefixes:           []string{"/stat/"},
+			path:               "/stat/",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "/",
+		},
+		{
+			desc:               "path prefix on matching longer path",
+			prefixes:           []string{"/stat/"},
+			path:               "/stat/us",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "/us",
+		},
+		{
+			desc:               "path prefix on mismatching path",
+			prefixes:           []string{"/stat/"},
+			path:               "/status",
+			expectedStatusCode: http.StatusNotFound,
+		},
+		{
+			desc:               "general prefix on matching path",
+			prefixes:           []string{"/stat"},
+			path:               "/stat/",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "/",
+		},
+		{
+			desc:               "earlier prefix matching",
+			prefixes:           []string{"/stat", "/stat/us"},
+			path:               "/stat/us",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "/us",
+		},
+		{
+			desc:               "later prefix matching",
+			prefixes:           []string{"/mismatch", "/stat"},
+			path:               "/stat",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "/",
+		},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(test.desc, func(t *testing.T) {
+			t.Parallel()
+			var gotPath string
+			server := httptest.NewServer(&StripPrefix{
+				Prefixes: test.prefixes,
+				Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+					gotPath = r.URL.Path
+				}),
+			})
+			defer server.Close()
+
+			resp, err := http.Get(server.URL + test.path)
+			require.NoError(t, err, "Failed to send GET request")
+			assert.Equal(t, test.expectedStatusCode, resp.StatusCode, "Unexpected status code")
+
+			assert.Equal(t, test.expectedPath, gotPath, "Unexpected path")
+		})
+	}
+}
--- a/provider/kubernetes/kubernetes.go
+++ b/provider/kubernetes/kubernetes.go
@ -27,9 +27,6 @@ var _ provider.Provider = (*Provider)(nil)

 const (
 	annotationFrontendRuleType = "traefik.frontend.rule.type"
-	ruleTypePathPrefixStrip    = "PathPrefixStrip"
-	ruleTypePathStrip          = "PathStrip"
-	ruleTypePath               = "Path"
 	ruleTypePathPrefix         = "PathPrefix"

 	annotationKubernetesWhitelistSourceRange = "ingress.kubernetes.io/whitelist-source-range"
@ -205,12 +202,8 @@ func (p *Provider) loadIngresses(k8sClient Client) (*types.Configuration, error)
 				}

 				if len(pa.Path) > 0 {
-					ruleType, unknown := getRuleTypeFromAnnotation(i.Annotations)
-					switch {
-					case unknown:
-						log.Warnf("Unknown RuleType '%s' for Ingress %s/%s, falling back to PathPrefix", ruleType, i.ObjectMeta.Namespace, i.ObjectMeta.Name)
-						fallthrough
-					case ruleType == "":
+					ruleType := i.Annotations[annotationFrontendRuleType]
+					if ruleType == "" {
 						ruleType = ruleTypePathPrefix
 					}

@ -265,28 +258,25 @@ func (p *Provider) loadIngresses(k8sClient Client) (*types.Configuration, error)
 							}

 							if !exists {
-								log.Errorf("Endpoints not found for %s/%s", service.ObjectMeta.Namespace, service.ObjectMeta.Name)
-								continue
+								log.Warnf("Endpoints not found for %s/%s", service.ObjectMeta.Namespace, service.ObjectMeta.Name)
+								break
 							}

 							if len(endpoints.Subsets) == 0 {
-								log.Warnf("Service endpoints not found for %s/%s, falling back to Service ClusterIP", service.ObjectMeta.Namespace, service.ObjectMeta.Name)
-								templateObjects.Backends[r.Host+pa.Path].Servers[string(service.UID)] = types.Server{
-									URL:    protocol + "://" + service.Spec.ClusterIP + ":" + strconv.Itoa(int(port.Port)),
-									Weight: 1,
-								}
-							} else {
-								for _, subset := range endpoints.Subsets {
-									for _, address := range subset.Addresses {
-										url := protocol + "://" + address.IP + ":" + strconv.Itoa(endpointPortNumber(port, subset.Ports))
-										name := url
-										if address.TargetRef != nil && address.TargetRef.Name != "" {
-											name = address.TargetRef.Name
-										}
-										templateObjects.Backends[r.Host+pa.Path].Servers[name] = types.Server{
-											URL:    url,
-											Weight: 1,
-										}
+								log.Warnf("Endpoints not available for %s/%s", service.ObjectMeta.Namespace, service.ObjectMeta.Name)
+								break
+							}
+
+							for _, subset := range endpoints.Subsets {
+								for _, address := range subset.Addresses {
+									url := protocol + "://" + address.IP + ":" + strconv.Itoa(endpointPortNumber(port, subset.Ports))
+									name := url
+									if address.TargetRef != nil && address.TargetRef.Name != "" {
+										name = address.TargetRef.Name
+									}
+									templateObjects.Backends[r.Host+pa.Path].Servers[name] = types.Server{
+										URL:    url,
+										Weight: 1,
 									}
 								}
 							}
@ -398,24 +388,3 @@ func (p *Provider) loadConfig(templateObjects types.Configuration) *types.Config
 	}
 	return configuration
 }
-
-func getRuleTypeFromAnnotation(annotations map[string]string) (ruleType string, unknown bool) {
-	ruleType = annotations[annotationFrontendRuleType]
-	for _, knownRuleType := range []string{
-		ruleTypePathPrefixStrip,
-		ruleTypePathStrip,
-		ruleTypePath,
-		ruleTypePathPrefix,
-	} {
-		if strings.ToLower(ruleType) == strings.ToLower(knownRuleType) {
-			return knownRuleType, false
-		}
-	}
-
-	if ruleType != "" {
-		// Annotation is set but does not match anything we know.
-		unknown = true
-	}
-
-	return ruleType, unknown
-}
--- a/provider/kubernetes/kubernetes_test.go
+++ b/provider/kubernetes/kubernetes_test.go
@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"reflect"
-	"strings"
 	"testing"

 	"github.com/containous/traefik/types"
@ -333,19 +332,24 @@ func TestRuleType(t *testing.T) {
 		frontendRuleType string
 	}{
 		{
-			desc:             "implicit default",
+			desc:             "rule type annotation missing",
 			ingressRuleType:  "",
 			frontendRuleType: ruleTypePathPrefix,
 		},
 		{
-			desc:             "unknown ingress / explicit default",
-			ingressRuleType:  "unknown",
-			frontendRuleType: ruleTypePathPrefix,
+			desc:             "Path rule type annotation set",
+			ingressRuleType:  "Path",
+			frontendRuleType: "Path",
 		},
 		{
-			desc:             "explicit ingress",
-			ingressRuleType:  ruleTypePath,
-			frontendRuleType: ruleTypePath,
+			desc:             "PathStrip rule type annotation set",
+			ingressRuleType:  "PathStrip",
+			frontendRuleType: "PathStrip",
+		},
+		{
+			desc:             "PathStripPrefix rule type annotation set",
+			ingressRuleType:  "PathStripPrefix",
+			frontendRuleType: "PathStripPrefix",
 		},
 	}

@ -1832,65 +1836,6 @@ func TestInvalidPassHostHeaderValue(t *testing.T) {
 	}
 }

-func TestGetRuleTypeFromAnnotation(t *testing.T) {
-	tests := []struct {
-		in            string
-		wantedUnknown bool
-	}{
-		{
-			in:            ruleTypePathPrefixStrip,
-			wantedUnknown: false,
-		},
-		{
-			in:            ruleTypePathStrip,
-			wantedUnknown: false,
-		},
-		{
-			in:            ruleTypePath,
-			wantedUnknown: false,
-		},
-		{
-			in:            ruleTypePathPrefix,
-			wantedUnknown: false,
-		},
-		{
-			wantedUnknown: false,
-		},
-		{
-			in:            "Unknown",
-			wantedUnknown: true,
-		},
-	}
-
-	for _, test := range tests {
-		test := test
-		inputs := []string{test.in, strings.ToLower(test.in)}
-		if inputs[0] == inputs[1] {
-			// Lower-casing makes no difference -- truncating to single case.
-			inputs = inputs[:1]
-		}
-		for _, input := range inputs {
-			t.Run(fmt.Sprintf("in='%s'", input), func(t *testing.T) {
-				t.Parallel()
-				annotations := map[string]string{}
-				if test.in != "" {
-					annotations[annotationFrontendRuleType] = test.in
-				}
-
-				gotRuleType, gotUnknown := getRuleTypeFromAnnotation(annotations)
-
-				if gotUnknown != test.wantedUnknown {
-					t.Errorf("got unknown '%t', wanted '%t'", gotUnknown, test.wantedUnknown)
-				}
-
-				if gotRuleType != test.in {
-					t.Errorf("got rule type '%s', wanted '%s'", gotRuleType, test.in)
-				}
-			})
-		}
-	}
-}
-
 func TestKubeAPIErrors(t *testing.T) {
 	ingresses := []*v1beta1.Ingress{{
 		ObjectMeta: v1.ObjectMeta{
@ -2027,6 +1972,21 @@ func TestMissingResources(t *testing.T) {
 						},
 					},
 				},
+				{
+					Host: "missing_endpoint_subsets",
+					IngressRuleValue: v1beta1.IngressRuleValue{
+						HTTP: &v1beta1.HTTPIngressRuleValue{
+							Paths: []v1beta1.HTTPIngressPath{
+								{
+									Backend: v1beta1.IngressBackend{
+										ServiceName: "missing_endpoint_subsets_service",
+										ServicePort: intstr.FromInt(80),
+									},
+								},
+							},
+						},
+					},
+				},
 			},
 		},
 	}}
@ -2061,6 +2021,21 @@ func TestMissingResources(t *testing.T) {
 				},
 			},
 		},
+		{
+			ObjectMeta: v1.ObjectMeta{
+				Name:      "missing_endpoint_subsets_service",
+				UID:       "4",
+				Namespace: "testing",
+			},
+			Spec: v1.ServiceSpec{
+				ClusterIP: "10.0.0.4",
+				Ports: []v1.ServicePort{
+					{
+						Port: 80,
+					},
+				},
+			},
+		},
 	}
 	endpoints := []*v1.Endpoints{
 		{
@ -2084,6 +2059,14 @@ func TestMissingResources(t *testing.T) {
 				},
 			},
 		},
+		{
+			ObjectMeta: v1.ObjectMeta{
+				Name:      "missing_endpoint_subsets_service",
+				UID:       "4",
+				Namespace: "testing",
+			},
+			Subsets: []v1.EndpointSubset{},
+		},
 	}

 	watchChan := make(chan interface{})
@ -2130,6 +2113,14 @@ func TestMissingResources(t *testing.T) {
 					Sticky: false,
 				},
 			},
+			"missing_endpoint_subsets": {
+				Servers:        map[string]types.Server{},
+				CircuitBreaker: nil,
+				LoadBalancer: &types.LoadBalancer{
+					Method: "wrr",
+					Sticky: false,
+				},
+			},
 		},
 		Frontends: map[string]*types.Frontend{
 			"fully_working": {
@ -2150,6 +2141,15 @@ func TestMissingResources(t *testing.T) {
 					},
 				},
 			},
+			"missing_endpoint_subsets": {
+				Backend:        "missing_endpoint_subsets",
+				PassHostHeader: true,
+				Routes: map[string]types.Route{
+					"missing_endpoint_subsets": {
+						Rule: "Host:missing_endpoint_subsets",
+					},
+				},
+			},
 		},
 	}

--- a/provider/rancher/rancher.go
+++ b/provider/rancher/rancher.go
@ -388,8 +388,12 @@ func parseRancherData(environments []*rancher.Environment, services []*rancher.S
 				Containers: []string{},
 			}

-			for key, value := range service.LaunchConfig.Labels {
-				rancherData.Labels[key] = value.(string)
+			if service.LaunchConfig == nil || service.LaunchConfig.Labels == nil {
+				log.Warnf("Rancher Service Labels are missing. Environment: %s, service: %s", environment.Name, service.Name)
+			} else {
+				for key, value := range service.LaunchConfig.Labels {
+					rancherData.Labels[key] = value.(string)
+				}
 			}

 			for _, container := range containers {
--- a/templates/kubernetes.tmpl
+++ b/templates/kubernetes.tmpl
@ -1,4 +1,5 @@
 [backends]{{range $backendName, $backend := .Backends}}
+    [backends."{{$backendName}}"]
    {{if $backend.CircuitBreaker}}
    [backends."{{$backendName}}".circuitbreaker]
      expression = "{{$backend.CircuitBreaker.Expression}}"
--- a/vendor/github.com/gambol99/go-marathon/application.go
+++ b/vendor/github.com/gambol99/go-marathon/application.go
@ -89,6 +89,8 @@ type Application struct {
 	TaskStats             map[string]TaskStats    `json:"taskStats,omitempty"`
 	User                  string                  `json:"user,omitempty"`
 	UpgradeStrategy       *UpgradeStrategy        `json:"upgradeStrategy,omitempty"`
+	UnreachableStrategy   *UnreachableStrategy    `json:"unreachableStrategy,omitempty"`
+	KillSelection         string                  `json:"killSelection,omitempty"`
 	Uris                  *[]string               `json:"uris,omitempty"`
 	Version               string                  `json:"version,omitempty"`
 	VersionInfo           *VersionInfo            `json:"versionInfo,omitempty"`
@ -453,7 +455,7 @@ func (r *Application) DeploymentIDs() []*DeploymentID {
 // CheckHTTP adds a HTTP check to an application
 //		port: 		the port the check should be checking
 // 		interval:	the interval in seconds the check should be performed
-func (r *Application) CheckHTTP(uri string, port, interval int) (*Application, error) {
+func (r *Application) CheckHTTP(path string, port, interval int) (*Application, error) {
 	if r.Container == nil || r.Container.Docker == nil {
 		return nil, ErrNoApplicationContainer
 	}
@ -464,7 +466,7 @@ func (r *Application) CheckHTTP(uri string, port, interval int) (*Application, e
 	}
 	health := NewDefaultHealthCheck()
 	health.IntervalSeconds = interval
-	*health.Path = uri
+	*health.Path = path
 	*health.PortIndex = portIndex
 	// step: add to the checks
 	r.AddHealthCheck(*health)
@ -555,6 +557,20 @@ func (r *Application) EmptyUpgradeStrategy() *Application {
 	return r
 }

+// SetUnreachableStrategy sets the unreachable strategy.
+func (r *Application) SetUnreachableStrategy(us UnreachableStrategy) *Application {
+	r.UnreachableStrategy = &us
+	return r
+}
+
+// EmptyUnreachableStrategy explicitly empties the unreachable strategy -- use this if
+// you need to empty the unreachable strategy of an application that already has
+// the unreachable strategy set (setting it to nil will keep the current value).
+func (r *Application) EmptyUnreachableStrategy() *Application {
+	r.UnreachableStrategy = &UnreachableStrategy{}
+	return r
+}
+
 // String returns the json representation of this application
 func (r *Application) String() string {
 	s, err := json.MarshalIndent(r, "", "  ")
@ -611,9 +627,9 @@ func (r *marathonClient) HasApplicationVersion(name, version string) (bool, erro
 // ApplicationVersions is a list of versions which has been deployed with marathon for a specific application
 //		name:		the id used to identify the application
 func (r *marathonClient) ApplicationVersions(name string) (*ApplicationVersions, error) {
-	uri := fmt.Sprintf("%s/versions", buildURI(name))
+	path := fmt.Sprintf("%s/versions", buildPath(name))
 	versions := new(ApplicationVersions)
-	if err := r.apiGet(uri, nil, versions); err != nil {
+	if err := r.apiGet(path, nil, versions); err != nil {
 		return nil, err
 	}
 	return versions, nil
@ -623,9 +639,9 @@ func (r *marathonClient) ApplicationVersions(name string) (*ApplicationVersions,
 // 		name: 		the id used to identify the application
 //		version: 	the version (normally a timestamp) you wish to change to
 func (r *marathonClient) SetApplicationVersion(name string, version *ApplicationVersion) (*DeploymentID, error) {
-	uri := fmt.Sprintf(buildURI(name))
+	path := fmt.Sprintf(buildPath(name))
 	deploymentID := new(DeploymentID)
-	if err := r.apiPut(uri, version, deploymentID); err != nil {
+	if err := r.apiPut(path, version, deploymentID); err != nil {
 		return nil, err
 	}

@ -639,7 +655,7 @@ func (r *marathonClient) Application(name string) (*Application, error) {
 		Application *Application `json:"app"`
 	}

-	if err := r.apiGet(buildURI(name), nil, &wrapper); err != nil {
+	if err := r.apiGet(buildPath(name), nil, &wrapper); err != nil {
 		return nil, err
 	}

@ -650,7 +666,7 @@ func (r *marathonClient) Application(name string) (*Application, error) {
 // 		name: 		the id used to identify the application
 //		opts:		GetAppOpts request payload
 func (r *marathonClient) ApplicationBy(name string, opts *GetAppOpts) (*Application, error) {
-	u, err := addOptions(buildURI(name), opts)
+	path, err := addOptions(buildPath(name), opts)
 	if err != nil {
 		return nil, err
 	}
@ -658,7 +674,7 @@ func (r *marathonClient) ApplicationBy(name string, opts *GetAppOpts) (*Applicat
 		Application *Application `json:"app"`
 	}

-	if err := r.apiGet(u, nil, &wrapper); err != nil {
+	if err := r.apiGet(path, nil, &wrapper); err != nil {
 		return nil, err
 	}

@ -671,8 +687,8 @@ func (r *marathonClient) ApplicationBy(name string, opts *GetAppOpts) (*Applicat
 func (r *marathonClient) ApplicationByVersion(name, version string) (*Application, error) {
 	app := new(Application)

-	uri := fmt.Sprintf("%s/versions/%s", buildURI(name), version)
-	if err := r.apiGet(uri, nil, app); err != nil {
+	path := fmt.Sprintf("%s/versions/%s", buildPath(name), version)
+	if err := r.apiGet(path, nil, app); err != nil {
 		return nil, err
 	}

@ -779,10 +795,10 @@ func (r *marathonClient) appExistAndRunning(name string) bool {
 // 		name: 		the id used to identify the application
 //		force:		used to force the delete operation in case of blocked deployment
 func (r *marathonClient) DeleteApplication(name string, force bool) (*DeploymentID, error) {
-	uri := buildURIWithForceParam(name, force)
+	path := buildPathWithForceParam(name, force)
 	// step: check of the application already exists
 	deployID := new(DeploymentID)
-	if err := r.apiDelete(uri, nil, deployID); err != nil {
+	if err := r.apiDelete(path, nil, deployID); err != nil {
 		return nil, err
 	}

@ -794,8 +810,8 @@ func (r *marathonClient) DeleteApplication(name string, force bool) (*Deployment
 func (r *marathonClient) RestartApplication(name string, force bool) (*DeploymentID, error) {
 	deployment := new(DeploymentID)
 	var options struct{}
-	uri := buildURIWithForceParam(fmt.Sprintf("%s/restart", name), force)
-	if err := r.apiPost(uri, &options, deployment); err != nil {
+	path := buildPathWithForceParam(fmt.Sprintf("%s/restart", name), force)
+	if err := r.apiPost(path, &options, deployment); err != nil {
 		return nil, err
 	}

@ -810,9 +826,9 @@ func (r *marathonClient) ScaleApplicationInstances(name string, instances int, f
 	changes := new(Application)
 	changes.ID = validateID(name)
 	changes.Instances = &instances
-	uri := buildURIWithForceParam(name, force)
+	path := buildPathWithForceParam(name, force)
 	deployID := new(DeploymentID)
-	if err := r.apiPut(uri, changes, deployID); err != nil {
+	if err := r.apiPut(path, changes, deployID); err != nil {
 		return nil, err
 	}

@ -823,22 +839,22 @@ func (r *marathonClient) ScaleApplicationInstances(name string, instances int, f
 // 		application:		the structure holding the application configuration
 func (r *marathonClient) UpdateApplication(application *Application, force bool) (*DeploymentID, error) {
 	result := new(DeploymentID)
-	uri := buildURIWithForceParam(application.ID, force)
-	if err := r.apiPut(uri, application, result); err != nil {
+	path := buildPathWithForceParam(application.ID, force)
+	if err := r.apiPut(path, application, result); err != nil {
 		return nil, err
 	}
 	return result, nil
 }

-func buildURIWithForceParam(path string, force bool) string {
-	uri := buildURI(path)
+func buildPathWithForceParam(rootPath string, force bool) string {
+	path := buildPath(rootPath)
 	if force {
-		uri += "?force=true"
+		path += "?force=true"
 	}
-	return uri
+	return path
 }

-func buildURI(path string) string {
+func buildPath(path string) string {
 	return fmt.Sprintf("%s/%s", marathonAPIApps, trimRootPath(path))
 }

--- a/vendor/github.com/gambol99/go-marathon/client.go
+++ b/vendor/github.com/gambol99/go-marathon/client.go
@ -27,6 +27,7 @@ import (
 	"net/http"
 	"net/url"
 	"regexp"
+	"strings"
 	"sync"
 	"time"
 )
@ -238,23 +239,23 @@ func (r *marathonClient) Ping() (bool, error) {
 	return true, nil
 }

-func (r *marathonClient) apiGet(uri string, post, result interface{}) error {
-	return r.apiCall("GET", uri, post, result)
+func (r *marathonClient) apiGet(path string, post, result interface{}) error {
+	return r.apiCall("GET", path, post, result)
 }

-func (r *marathonClient) apiPut(uri string, post, result interface{}) error {
-	return r.apiCall("PUT", uri, post, result)
+func (r *marathonClient) apiPut(path string, post, result interface{}) error {
+	return r.apiCall("PUT", path, post, result)
 }

-func (r *marathonClient) apiPost(uri string, post, result interface{}) error {
-	return r.apiCall("POST", uri, post, result)
+func (r *marathonClient) apiPost(path string, post, result interface{}) error {
+	return r.apiCall("POST", path, post, result)
 }

-func (r *marathonClient) apiDelete(uri string, post, result interface{}) error {
-	return r.apiCall("DELETE", uri, post, result)
+func (r *marathonClient) apiDelete(path string, post, result interface{}) error {
+	return r.apiCall("DELETE", path, post, result)
 }

-func (r *marathonClient) apiCall(method, url string, body, result interface{}) error {
+func (r *marathonClient) apiCall(method, path string, body, result interface{}) error {
 	for {
 		// step: marshall the request to json
 		var requestBody []byte
@ -266,7 +267,7 @@ func (r *marathonClient) apiCall(method, url string, body, result interface{}) e
 		}

 		// step: create the API request
-		request, member, err := r.buildAPIRequest(method, url, bytes.NewReader(requestBody))
+		request, member, err := r.buildAPIRequest(method, path, bytes.NewReader(requestBody))
 		if err != nil {
 			return err
 		}
@ -317,7 +318,7 @@ func (r *marathonClient) apiCall(method, url string, body, result interface{}) e
 }

 // buildAPIRequest creates a default API request
-func (r *marathonClient) buildAPIRequest(method, uri string, reader io.Reader) (request *http.Request, member string, err error) {
+func (r *marathonClient) buildAPIRequest(method, path string, reader io.Reader) (request *http.Request, member string, err error) {
 	// Grab a member from the cluster
 	member, err = r.hosts.getMember()
 	if err != nil {
@ -325,16 +326,22 @@ func (r *marathonClient) buildAPIRequest(method, uri string, reader io.Reader) (
 	}

 	// Build the HTTP request to Marathon
-	request, err = r.client.buildMarathonRequest(method, member, uri, reader)
+	request, err = r.client.buildMarathonRequest(method, member, path, reader)
 	if err != nil {
 		return nil, member, err
 	}
 	return request, member, nil
 }

-func (rc *httpClient) buildMarathonRequest(method string, member string, uri string, reader io.Reader) (request *http.Request, err error) {
+// buildMarathonRequest creates a new HTTP request and configures it according to the *httpClient configuration.
+// The path must not contain a leading "/", otherwise buildMarathonRequest will panic.
+func (rc *httpClient) buildMarathonRequest(method string, member string, path string, reader io.Reader) (request *http.Request, err error) {
+	if strings.HasPrefix(path, "/") {
+		panic(fmt.Sprintf("Path '%s' must not start with a leading slash", path))
+	}
+
 	// Create the endpoint URL
-	url := fmt.Sprintf("%s/%s", member, uri)
+	url := fmt.Sprintf("%s/%s", member, path)

 	// Instantiate an HTTP request
 	request, err = http.NewRequest(method, url, reader)
--- a/vendor/github.com/gambol99/go-marathon/cluster.go
+++ b/vendor/github.com/gambol99/go-marathon/cluster.go
@ -131,7 +131,7 @@ func (c *cluster) markDown(endpoint string) {
 func (c *cluster) healthCheckNode(node *member) {
 	// step: wait for the node to become active ... we are assuming a /ping is enough here
 	for {
-		req, err := c.client.buildMarathonRequest("GET", node.endpoint, "/ping", nil)
+		req, err := c.client.buildMarathonRequest("GET", node.endpoint, "ping", nil)
 		if err == nil {
 			res, err := c.client.Do(req)
 			if err == nil && res.StatusCode == 200 {
--- a/vendor/github.com/gambol99/go-marathon/group.go
+++ b/vendor/github.com/gambol99/go-marathon/group.go
@ -106,12 +106,12 @@ func (r *marathonClient) Group(name string) (*Group, error) {
 // GroupsBy retrieves a list of all the groups from marathon by embed options
 //		opts:		GetGroupOpts request payload
 func (r *marathonClient) GroupsBy(opts *GetGroupOpts) (*Groups, error) {
-	u, err := addOptions(marathonAPIGroups, opts)
+	path, err := addOptions(marathonAPIGroups, opts)
 	if err != nil {
 		return nil, err
 	}
 	groups := new(Groups)
-	if err := r.apiGet(u, "", groups); err != nil {
+	if err := r.apiGet(path, "", groups); err != nil {
 		return nil, err
 	}
 	return groups, nil
@ -121,12 +121,12 @@ func (r *marathonClient) GroupsBy(opts *GetGroupOpts) (*Groups, error) {
 //		name:			the identifier for the group
 //		opts:			GetGroupOpts request payload
 func (r *marathonClient) GroupBy(name string, opts *GetGroupOpts) (*Group, error) {
-	u, err := addOptions(fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name)), opts)
+	path, err := addOptions(fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name)), opts)
 	if err != nil {
 		return nil, err
 	}
 	group := new(Group)
-	if err := r.apiGet(u, nil, group); err != nil {
+	if err := r.apiGet(path, nil, group); err != nil {
 		return nil, err
 	}
 	return group, nil
@ -135,8 +135,8 @@ func (r *marathonClient) GroupBy(name string, opts *GetGroupOpts) (*Group, error
 // HasGroup checks if the group exists in marathon
 // 		name:			the identifier for the group
 func (r *marathonClient) HasGroup(name string) (bool, error) {
-	uri := fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name))
-	err := r.apiCall("GET", uri, "", nil)
+	path := fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name))
+	err := r.apiCall("GET", path, "", nil)
 	if err != nil {
 		if apiErr, ok := err.(*APIError); ok && apiErr.ErrCode == ErrCodeNotFound {
 			return false, nil
@ -208,11 +208,9 @@ func (r *marathonClient) WaitOnGroup(name string, timeout time.Duration) error {
 //		force:			used to force the delete operation in case of blocked deployment
 func (r *marathonClient) DeleteGroup(name string, force bool) (*DeploymentID, error) {
 	version := new(DeploymentID)
-	uri := fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name))
-	if force {
-		uri = uri + "?force=true"
-	}
-	if err := r.apiDelete(uri, nil, version); err != nil {
+	path := fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name))
+	path = buildPathWithForceParam(path, force)
+	if err := r.apiDelete(path, nil, version); err != nil {
 		return nil, err
 	}

@ -225,11 +223,9 @@ func (r *marathonClient) DeleteGroup(name string, force bool) (*DeploymentID, er
 //		force:			used to force the update operation in case of blocked deployment
 func (r *marathonClient) UpdateGroup(name string, group *Group, force bool) (*DeploymentID, error) {
 	deploymentID := new(DeploymentID)
-	uri := fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name))
-	if force {
-		uri = uri + "?force=true"
-	}
-	if err := r.apiPut(uri, group, deploymentID); err != nil {
+	path := fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name))
+	path = buildPathWithForceParam(path, force)
+	if err := r.apiPut(path, group, deploymentID); err != nil {
 		return nil, err
 	}

--- a/vendor/github.com/gambol99/go-marathon/queue.go
+++ b/vendor/github.com/gambol99/go-marathon/queue.go
@ -51,8 +51,8 @@ func (r *marathonClient) Queue() (*Queue, error) {
 // DeleteQueueDelay resets task launch delay of the specific application
 //		appID:		the ID of the application
 func (r *marathonClient) DeleteQueueDelay(appID string) error {
-	uri := fmt.Sprintf("%s/%s/delay", marathonAPIQueue, trimRootPath(appID))
-	err := r.apiDelete(uri, nil, nil)
+	path := fmt.Sprintf("%s/%s/delay", marathonAPIQueue, trimRootPath(appID))
+	err := r.apiDelete(path, nil, nil)
 	if err != nil {
 		return err
 	}
--- a/vendor/github.com/gambol99/go-marathon/subscription.go
+++ b/vendor/github.com/gambol99/go-marathon/subscription.go
@ -201,8 +201,8 @@ func (r *marathonClient) registerSSESubscription() error {
 // Subscribe adds a URL to Marathon's callback facility
 //	callback	: the URL you wish to subscribe
 func (r *marathonClient) Subscribe(callback string) error {
-	uri := fmt.Sprintf("%s?callbackUrl=%s", marathonAPISubscription, callback)
-	return r.apiPost(uri, "", nil)
+	path := fmt.Sprintf("%s?callbackUrl=%s", marathonAPISubscription, callback)
+	return r.apiPost(path, "", nil)

 }

--- a/vendor/github.com/gambol99/go-marathon/task.go
+++ b/vendor/github.com/gambol99/go-marathon/task.go
@ -79,13 +79,13 @@ func (r *Task) HasHealthCheckResults() bool {
 // AllTasks lists tasks of all applications.
 //		opts: 		AllTasksOpts request payload
 func (r *marathonClient) AllTasks(opts *AllTasksOpts) (*Tasks, error) {
-	u, err := addOptions(marathonAPITasks, opts)
+	path, err := addOptions(marathonAPITasks, opts)
 	if err != nil {
 		return nil, err
 	}

 	tasks := new(Tasks)
-	if err := r.apiGet(u, nil, tasks); err != nil {
+	if err := r.apiGet(path, nil, tasks); err != nil {
 		return nil, err
 	}

@ -107,14 +107,14 @@ func (r *marathonClient) Tasks(id string) (*Tasks, error) {
 //		id:		the id of the application
 //		opts: 		KillApplicationTasksOpts request payload
 func (r *marathonClient) KillApplicationTasks(id string, opts *KillApplicationTasksOpts) (*Tasks, error) {
-	u := fmt.Sprintf("%s/%s/tasks", marathonAPIApps, trimRootPath(id))
-	u, err := addOptions(u, opts)
+	path := fmt.Sprintf("%s/%s/tasks", marathonAPIApps, trimRootPath(id))
+	path, err := addOptions(path, opts)
 	if err != nil {
 		return nil, err
 	}

 	tasks := new(Tasks)
-	if err := r.apiDelete(u, nil, tasks); err != nil {
+	if err := r.apiDelete(path, nil, tasks); err != nil {
 		return nil, err
 	}

@ -129,8 +129,8 @@ func (r *marathonClient) KillTask(taskID string, opts *KillTaskOpts) (*Task, err
 	appName = strings.Replace(appName, "_", "/", -1)
 	taskID = strings.Replace(taskID, "/", "_", -1)

-	u := fmt.Sprintf("%s/%s/tasks/%s", marathonAPIApps, appName, taskID)
-	u, err := addOptions(u, opts)
+	path := fmt.Sprintf("%s/%s/tasks/%s", marathonAPIApps, appName, taskID)
+	path, err := addOptions(path, opts)
 	if err != nil {
 		return nil, err
 	}
@ -139,7 +139,7 @@ func (r *marathonClient) KillTask(taskID string, opts *KillTaskOpts) (*Task, err
 		Task Task `json:"task"`
 	})

-	if err := r.apiDelete(u, nil, wrappedTask); err != nil {
+	if err := r.apiDelete(path, nil, wrappedTask); err != nil {
 		return nil, err
 	}

@ -150,8 +150,8 @@ func (r *marathonClient) KillTask(taskID string, opts *KillTaskOpts) (*Task, err
 //	tasks:		the array of task ids
 //	opts:		KillTaskOpts request payload
 func (r *marathonClient) KillTasks(tasks []string, opts *KillTaskOpts) error {
-	u := fmt.Sprintf("%s/delete", marathonAPITasks)
-	u, err := addOptions(u, opts)
+	path := fmt.Sprintf("%s/delete", marathonAPITasks)
+	path, err := addOptions(path, opts)
 	if err != nil {
 		return nil
 	}
@ -161,7 +161,7 @@ func (r *marathonClient) KillTasks(tasks []string, opts *KillTaskOpts) error {
 	}
 	post.IDs = tasks

-	return r.apiPost(u, &post, nil)
+	return r.apiPost(path, &post, nil)
 }

 // TaskEndpoints gets the endpoints i.e. HOST_IP:DYNAMIC_PORT for a specific application service
--- a/vendor/github.com/gambol99/go-marathon/unreachable_strategy.go
+++ b/vendor/github.com/gambol99/go-marathon/unreachable_strategy.go
@ -0,0 +1,35 @@
+/*
+Copyright 2017 Rohith All rights reserved.
+
+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 marathon
+
+// UnreachableStrategy is the unreachable strategy applied to an application.
+type UnreachableStrategy struct {
+	InactiveAfterSeconds *float64 `json:"inactiveAfterSeconds,omitempty"`
+	ExpungeAfterSeconds  *float64 `json:"expungeAfterSeconds,omitempty"`
+}
+
+// SetInactiveAfterSeconds sets the period after which instance will be marked as inactive.
+func (us UnreachableStrategy) SetInactiveAfterSeconds(cap float64) UnreachableStrategy {
+	us.InactiveAfterSeconds = &cap
+	return us
+}
+
+// SetExpungeAfterSeconds sets the period after which instance will be expunged.
+func (us UnreachableStrategy) SetExpungeAfterSeconds(cap float64) UnreachableStrategy {
+	us.ExpungeAfterSeconds = &cap
+	return us
+}
--- a/vendor/github.com/gambol99/go-marathon/upgrade_strategy.go
+++ b/vendor/github.com/gambol99/go-marathon/upgrade_strategy.go