Update go-marathon

glide.lock

@@ -261,7 +261,7 @@ imports:
 - name: github.com/fatih/color
   version: 62e9147c64a1ed519147b62a56a14e83e2be02c1
 - name: github.com/gambol99/go-marathon
-  version: dd6cbd4c2d71294a19fb89158f2a00d427f174ab
+  version: 03b46169666c53b9cc953b875ac5714e5103e064
 - name: github.com/ghodss/yaml
   version: 73d445a93680fa1a78ae23a5839bad48f32ba1ee
 - name: github.com/go-ini/ini

vendor/github.com/gambol99/go-marathon/application.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -64,7 +64,8 @@ type Application struct {
 	CPUs        float64     `json:"cpus,omitempty"`
 	GPUs        *float64    `json:"gpus,omitempty"`
 	Disk        *float64    `json:"disk,omitempty"`
-	Env                        *map[string]string  `json:"env,omitempty"`
+	// Contains non-secret environment variables. Secrets environment variables are part of the Secrets map.
+	Env                        *map[string]string  `json:"-"`
 	Executor                   *string             `json:"executor,omitempty"`
 	HealthChecks               *[]HealthCheck      `json:"healthChecks,omitempty"`
 	ReadinessChecks            *[]ReadinessCheck   `json:"readinessChecks,omitempty"`
@@ -99,6 +100,8 @@ type Application struct {
 	LastTaskFailure       *LastTaskFailure        `json:"lastTaskFailure,omitempty"`
 	Fetch                 *[]Fetch                `json:"fetch,omitempty"`
 	IPAddressPerTask      *IPAddressPerTask       `json:"ipAddress,omitempty"`
+	Residency             *Residency              `json:"residency,omitempty"`
+	Secrets               *map[string]Secret      `json:"-"`
 }
 
 // ApplicationVersions is a collection of application versions for a specific app in marathon
@@ -149,6 +152,14 @@ type Stats struct {
 	LifeTime map[string]float64 `json:"lifeTime"`
 }
 
+// Secret is the environment variable and secret store path associated with a secret.
+// The value for EnvVar is populated from the env field, and Source is populated from
+// the secrets field of the application json.
+type Secret struct {
+	EnvVar string
+	Source string
+}
+
 // SetIPAddressPerTask defines that the application will have a IP address defines by a external agent.
 // This configuration is not allowed to be used with Port or PortDefinitions. Thus, the implementation
 // clears both.
@@ -375,6 +386,28 @@ func (r *Application) EmptyEnvs() *Application {
 	return r
 }
 
+// AddSecret adds a secret declaration
+// envVar: the name of the environment variable
+// name:	the name of the secret
+// source:	the source ID of the secret
+func (r *Application) AddSecret(envVar, name, source string) *Application {
+	if r.Secrets == nil {
+		r.EmptySecrets()
+	}
+	(*r.Secrets)[name] = Secret{EnvVar: envVar, Source: source}
+
+	return r
+}
+
+// EmptySecrets explicitly empties the secrets -- use this if you need to empty
+// the secrets of an application that already has secrets set (setting secrets to nil will
+// keep the current value)
+func (r *Application) EmptySecrets() *Application {
+	r.Secrets = &map[string]Secret{}
+
+	return r
+}
+
 // SetExecutor sets the executor
 func (r *Application) SetExecutor(executor string) *Application {
 	r.Executor = &executor
@@ -571,6 +604,23 @@ func (r *Application) EmptyUnreachableStrategy() *Application {
 	return r
 }
 
+// SetResidency sets behavior for resident applications, an application is resident when
+// it has local persistent volumes set
+func (r *Application) SetResidency(whenLost TaskLostBehaviorType) *Application {
+	r.Residency = &Residency{
+		TaskLostBehavior: whenLost,
+	}
+	return r
+}
+
+// EmptyResidency explicitly empties the residency -- use this if
+// you need to empty the residency of an application that already has
+// the residency set (setting it to nil will keep the current value).
+func (r *Application) EmptyResidency() *Application {
+	r.Residency = &Residency{}
+	return r
+}
+
 // String returns the json representation of this application
 func (r *Application) String() string {
 	s, err := json.MarshalIndent(r, "", "  ")
@@ -639,7 +689,7 @@ 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) {
-	path := fmt.Sprintf(buildPath(name))
+	path := buildPath(name)
 	deploymentID := new(DeploymentID)
 	if err := r.apiPut(path, version, deploymentID); err != nil {
 		return nil, err

vendor/github.com/gambol99/go-marathon/application_marshalling.go

@@ -0,0 +1,106 @@
+/*
+Copyright 2017 The go-marathon Authors 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
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// Alias aliases the Application struct so that it will be marshaled/unmarshaled automatically
+type Alias Application
+
+// TmpEnvSecret holds the secret values deserialized from the environment variables field
+type TmpEnvSecret struct {
+	Secret string `json:"secret,omitempty"`
+}
+
+// TmpSecret holds the deserialized secrets field in a Marathon application configuration
+type TmpSecret struct {
+	Source string `json:"source,omitempty"`
+}
+
+// UnmarshalJSON unmarshals the given Application JSON as expected except for environment variables and secrets.
+// Environment varialbes are stored in the Env field. Secrets, including the environment variable part,
+// are stored in the Secrets field.
+func (app *Application) UnmarshalJSON(b []byte) error {
+	aux := &struct {
+		*Alias
+		Env     map[string]interface{} `json:"env"`
+		Secrets map[string]TmpSecret   `json:"secrets"`
+	}{
+		Alias: (*Alias)(app),
+	}
+	if err := json.Unmarshal(b, aux); err != nil {
+		return fmt.Errorf("malformed application definition %v", err)
+	}
+	env := &map[string]string{}
+	secrets := &map[string]Secret{}
+
+	for envName, genericEnvValue := range aux.Env {
+		switch envValOrSecret := genericEnvValue.(type) {
+		case string:
+			(*env)[envName] = envValOrSecret
+		case map[string]interface{}:
+			for secret, secretStore := range envValOrSecret {
+				if secStore, ok := secretStore.(string); ok && secret == "secret" {
+					(*secrets)[secStore] = Secret{EnvVar: envName}
+					break
+				}
+				return fmt.Errorf("unexpected secret field %v or value type %T", secret, envValOrSecret[secret])
+			}
+		default:
+			return fmt.Errorf("unexpected environment variable type %T", envValOrSecret)
+		}
+	}
+	app.Env = env
+	for k, v := range aux.Secrets {
+		tmp := (*secrets)[k]
+		tmp.Source = v.Source
+		(*secrets)[k] = tmp
+	}
+	app.Secrets = secrets
+	return nil
+}
+
+// MarshalJSON marshals the given Application as expected except for environment variables and secrets,
+// which are marshaled from specialized structs.  The environment variable piece of the secrets and other
+// normal environment variables are combined and marshaled to the env field.  The secrets and the related
+// source are marshaled into the secrets field.
+func (app *Application) MarshalJSON() ([]byte, error) {
+	env := make(map[string]interface{})
+	secrets := make(map[string]TmpSecret)
+
+	if app.Env != nil {
+		for k, v := range *app.Env {
+			env[string(k)] = string(v)
+		}
+	}
+	if app.Secrets != nil {
+		for k, v := range *app.Secrets {
+			env[v.EnvVar] = TmpEnvSecret{Secret: k}
+			secrets[k] = TmpSecret{v.Source}
+		}
+	}
+	aux := &struct {
+		*Alias
+		Env     map[string]interface{} `json:"env,omitempty"`
+		Secrets map[string]TmpSecret   `json:"secrets,omitempty"`
+	}{Alias: (*Alias)(app), Env: env, Secrets: secrets}
+
+	return json.Marshal(aux)
+}

vendor/github.com/gambol99/go-marathon/client.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -24,6 +24,7 @@ import (
 	"io"
 	"io/ioutil"
 	"log"
+	"net"
 	"net/http"
 	"net/url"
 	"regexp"
@@ -154,6 +155,24 @@ var (
 	ErrMarathonDown = errors.New("all the Marathon hosts are presently down")
 	// ErrTimeoutError is thrown when the operation has timed out
 	ErrTimeoutError = errors.New("the operation has timed out")
+
+	// Default HTTP client used for SSE subscription requests
+	// It is invalid to set client.Timeout because it includes time to read response so
+	// set dial, tls handshake and response header timeouts instead
+	defaultHTTPSSEClient = &http.Client{
+		Transport: &http.Transport{
+			Dial: (&net.Dialer{
+				Timeout: 5 * time.Second,
+			}).Dial,
+			ResponseHeaderTimeout: 10 * time.Second,
+			TLSHandshakeTimeout:   5 * time.Second,
+		},
+	}
+
+	// Default HTTP client used for non SSE requests
+	defaultHTTPClient = &http.Client{
+		Timeout: 10 * time.Second,
+	}
 )
 
 // EventsChannelContext holds contextual data for an EventsChannel.
@@ -177,8 +196,8 @@ type marathonClient struct {
 	hosts *cluster
 	// a map of service you wish to listen to
 	listeners map[EventsChannel]EventsChannelContext
-	// a custom logger for debug log messages
-	debugLog *log.Logger
+	// a custom log function for debug messages
+	debugLog func(format string, v ...interface{})
 	// the marathon HTTP client to ensure consistency in requests
 	client *httpClient
 }
@@ -196,9 +215,18 @@ type newRequestError struct {
 // NewClient creates a new marathon client
 //		config:			the configuration to use
 func NewClient(config Config) (Marathon, error) {
-	// step: if no http client, set to default
+	// step: if the SSE HTTP client is missing, prefer a configured regular
+	// client, and otherwise use the default SSE HTTP client.
+	if config.HTTPSSEClient == nil {
+		config.HTTPSSEClient = defaultHTTPSSEClient
+		if config.HTTPClient != nil {
+			config.HTTPSSEClient = config.HTTPClient
+		}
+	}
+
+	// step: if a regular HTTP client is missing, use the default one.
 	if config.HTTPClient == nil {
-		config.HTTPClient = http.DefaultClient
+		config.HTTPClient = defaultHTTPClient
 	}
 
 	// step: if no polling wait time is set, default to 500 milliseconds.
@@ -215,16 +243,19 @@ func NewClient(config Config) (Marathon, error) {
 		return nil, err
 	}
 
-	debugLogOutput := config.LogOutput
-	if debugLogOutput == nil {
-		debugLogOutput = ioutil.Discard
+	debugLog := func(string, ...interface{}) {}
+	if config.LogOutput != nil {
+		logger := log.New(config.LogOutput, "", 0)
+		debugLog = func(format string, v ...interface{}) {
+			logger.Printf(format, v...)
+		}
 	}
 
 	return &marathonClient{
 		config:    config,
 		listeners: make(map[EventsChannel]EventsChannelContext),
 		hosts:     hosts,
-		debugLog:  log.New(debugLogOutput, "", 0),
+		debugLog:  debugLog,
 		client:    client,
 	}, nil
 }
@@ -280,7 +311,7 @@ func (r *marathonClient) apiCall(method, path string, body, result interface{})
 		if err != nil {
 			r.hosts.markDown(member)
 			// step: attempt the request on another member
-			r.debugLog.Printf("apiCall(): request failed on host: %s, error: %s, trying another\n", member, err)
+			r.debugLog("apiCall(): request failed on host: %s, error: %s, trying another", member, err)
 			continue
 		}
 		defer response.Body.Close()
@@ -292,9 +323,9 @@ func (r *marathonClient) apiCall(method, path string, body, result interface{})
 		}
 
 		if len(requestBody) > 0 {
-			r.debugLog.Printf("apiCall(): %v %v %s returned %v %s\n", request.Method, request.URL.String(), requestBody, response.Status, oneLogLine(respBody))
+			r.debugLog("apiCall(): %v %v %s returned %v %s", request.Method, request.URL.String(), requestBody, response.Status, oneLogLine(respBody))
 		} else {
-			r.debugLog.Printf("apiCall(): %v %v returned %v %s\n", request.Method, request.URL.String(), response.Status, oneLogLine(respBody))
+			r.debugLog("apiCall(): %v %v returned %v %s", request.Method, request.URL.String(), response.Status, oneLogLine(respBody))
 		}
 
 		// step: check for a successfull response
@@ -311,7 +342,7 @@ func (r *marathonClient) apiCall(method, path string, body, result interface{})
 		if response.StatusCode >= 500 && response.StatusCode <= 599 {
 			// step: mark the host as down
 			r.hosts.markDown(member)
-			r.debugLog.Printf("apiCall(): request failed, host: %s, status: %d, trying another\n", member, response.StatusCode)
+			r.debugLog("apiCall(): request failed, host: %s, status: %d, trying another", member, response.StatusCode)
 			continue
 		}
 
@@ -329,16 +360,28 @@ func (r *marathonClient) buildAPIRequest(method, path string, reader io.Reader)
 	}
 
 	// Build the HTTP request to Marathon
-	request, err = r.client.buildMarathonRequest(method, member, path, reader)
+	request, err = r.client.buildMarathonJSONRequest(method, member, path, reader)
 	if err != nil {
 		return nil, member, newRequestError{err}
 	}
 	return request, member, nil
 }
 
+// buildMarathonJSONRequest is like buildMarathonRequest but sets the
+// Content-Type and Accept headers to application/json.
+func (rc *httpClient) buildMarathonJSONRequest(method, member, path string, reader io.Reader) (request *http.Request, err error) {
+	req, err := rc.buildMarathonRequest(method, member, path, reader)
+	if err == nil {
+		req.Header.Add("Content-Type", "application/json")
+		req.Header.Add("Accept", "application/json")
+	}
+
+	return req, err
+}
+
 // 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) {
+func (rc *httpClient) buildMarathonRequest(method, member, 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))
 	}
@@ -361,9 +404,6 @@ func (rc *httpClient) buildMarathonRequest(method string, member string, path st
 		request.Header.Add("Authorization", "token="+rc.config.DCOSToken)
 	}
 
-	request.Header.Add("Content-Type", "application/json")
-	request.Header.Add("Accept", "application/json")
-
 	return request, nil
 }
 

vendor/github.com/gambol99/go-marathon/cluster.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -39,6 +39,9 @@ type cluster struct {
 	members []*member
 	// the marathon HTTP client to ensure consistency in requests
 	client *httpClient
+	// healthCheckInterval is the interval by which we probe down nodes for
+	// availability again.
+	healthCheckInterval time.Duration
 }
 
 // member represents an individual endpoint
@@ -96,6 +99,7 @@ func newCluster(client *httpClient, marathonURL string, isDCOS bool) (*cluster,
 	return &cluster{
 		client:              client,
 		members:             members,
+		healthCheckInterval: 5 * time.Second,
 	}, nil
 }
 
@@ -130,20 +134,21 @@ func (c *cluster) markDown(endpoint string) {
 // healthCheckNode performs a health check on the node and when active updates the status
 func (c *cluster) healthCheckNode(node *member) {
 	// step: wait for the node to become active ... we are assuming a /ping is enough here
-	for {
+	ticker := time.NewTicker(c.healthCheckInterval)
+	defer ticker.Stop()
+	for range ticker.C {
 		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 {
+				// step: mark the node as active again
+				c.Lock()
+				node.status = memberStatusUp
+				c.Unlock()
 				break
 			}
 		}
-		<-time.After(time.Duration(5 * time.Second))
 	}
-	// step: mark the node as active again
-	c.Lock()
-	defer c.Unlock()
-	node.status = memberStatusUp
 }
 
 // activeMembers returns a list of active members

vendor/github.com/gambol99/go-marathon/config.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -50,8 +50,10 @@ type Config struct {
 	DCOSToken string
 	// LogOutput the output for debug log messages
 	LogOutput io.Writer
-	// HTTPClient is the http client
+	// HTTPClient is the HTTP client
 	HTTPClient *http.Client
+	// HTTPSSEClient is the HTTP client used for SSE subscriptions, can't have client.Timeout set
+	HTTPSSEClient *http.Client
 	// wait time (in milliseconds) between repetitive requests to the API during polling
 	PollingWaitTime time.Duration
 }

vendor/github.com/gambol99/go-marathon/const.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.

vendor/github.com/gambol99/go-marathon/deployment.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.

vendor/github.com/gambol99/go-marathon/docker.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -50,6 +50,67 @@ type Volume struct {
 	HostPath      string            `json:"hostPath,omitempty"`
 	External      *ExternalVolume   `json:"external,omitempty"`
 	Mode          string            `json:"mode,omitempty"`
+	Persistent    *PersistentVolume `json:"persistent,omitempty"`
+}
+
+type PersistentVolumeType string
+
+const (
+	PersistentVolumeTypeRoot  PersistentVolumeType = "root"
+	PersistentVolumeTypePath  PersistentVolumeType = "path"
+	PersistentVolumeTypeMount PersistentVolumeType = "mount"
+)
+
+// PersistentVolume declares a Volume to be Persistent, and sets
+// the size (in MiB) and optional type, max size (MiB) and constraints for the Volume.
+type PersistentVolume struct {
+	Type        PersistentVolumeType `json:"type,omitempty"`
+	Size        int                  `json:"size"`
+	MaxSize     int                  `json:"maxSize,omitempty"`
+	Constraints *[][]string          `json:"constraints,omitempty"`
+}
+
+// SetType sets the type of mesos disk resource to use
+//		type:	       PersistentVolumeType enum
+func (p *PersistentVolume) SetType(tp PersistentVolumeType) *PersistentVolume {
+	p.Type = tp
+	return p
+}
+
+// SetSize sets size of the persistent volume
+//		size:	        size in MiB
+func (p *PersistentVolume) SetSize(size int) *PersistentVolume {
+	p.Size = size
+	return p
+}
+
+// SetMaxSize sets maximum size of an exclusive mount-disk resource to consider;
+// does not apply to root or path disk resource types
+//		maxSize:	size in MiB
+func (p *PersistentVolume) SetMaxSize(maxSize int) *PersistentVolume {
+	p.MaxSize = maxSize
+	return p
+}
+
+// AddConstraint adds a new constraint
+//		constraints:	the constraint definition, one constraint per array element
+func (p *PersistentVolume) AddConstraint(constraints ...string) *PersistentVolume {
+	if p.Constraints == nil {
+		p.EmptyConstraints()
+	}
+
+	c := *p.Constraints
+	c = append(c, constraints)
+	p.Constraints = &c
+	return p
+}
+
+// EmptyConstraints explicitly empties constraints -- use this if you need to empty
+// constraints of an application that already has constraints set (setting constraints to nil will
+// keep the current value)
+func (p *PersistentVolume) EmptyConstraints() *PersistentVolume {
+	p.Constraints = &[][]string{}
+	return p
 }
 
 // ExternalVolume is an external volume definition
@@ -98,6 +159,19 @@ func (container *Container) EmptyVolumes() *Container {
 	return container
 }
 
+// SetPersistentVolume defines persistent properties for volume
+func (v *Volume) SetPersistentVolume() *PersistentVolume {
+	ev := &PersistentVolume{}
+	v.Persistent = ev
+	return ev
+}
+
+// EmptyPersistentVolume empties the persistent volume definition
+func (v *Volume) EmptyPersistentVolume() *Volume {
+	v.Persistent = &PersistentVolume{}
+	return v
+}
+
 // SetExternalVolume define external elements for a volume
 //      name: the name of the volume
 //      provider: the provider of the volume (e.g. dvdi)

vendor/github.com/gambol99/go-marathon/error.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2015 Rohith All rights reserved.
+Copyright 2015 The go-marathon Authors 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.

vendor/github.com/gambol99/go-marathon/events.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.

vendor/github.com/gambol99/go-marathon/group.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -136,7 +136,7 @@ func (r *marathonClient) GroupBy(name string, opts *GetGroupOpts) (*Group, error
 // 		name:			the identifier for the group
 func (r *marathonClient) HasGroup(name string) (bool, error) {
 	path := fmt.Sprintf("%s/%s", marathonAPIGroups, trimRootPath(name))
-	err := r.apiCall("GET", path, "", nil)
+	err := r.apiGet(path, "", nil)
 	if err != nil {
 		if apiErr, ok := err.(*APIError); ok && apiErr.ErrCode == ErrCodeNotFound {
 			return false, nil

vendor/github.com/gambol99/go-marathon/health.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -31,37 +31,37 @@ type HealthCheck struct {
 }
 
 // SetCommand sets the given command on the health check.
-func (h HealthCheck) SetCommand(c Command) HealthCheck {
+func (h *HealthCheck) SetCommand(c Command) *HealthCheck {
 	h.Command = &c
 	return h
 }
 
 // SetPortIndex sets the given port index on the health check.
-func (h HealthCheck) SetPortIndex(i int) HealthCheck {
+func (h *HealthCheck) SetPortIndex(i int) *HealthCheck {
 	h.PortIndex = &i
 	return h
 }
 
 // SetPort sets the given port on the health check.
-func (h HealthCheck) SetPort(i int) HealthCheck {
+func (h *HealthCheck) SetPort(i int) *HealthCheck {
 	h.Port = &i
 	return h
 }
 
 // SetPath sets the given path on the health check.
-func (h HealthCheck) SetPath(p string) HealthCheck {
+func (h *HealthCheck) SetPath(p string) *HealthCheck {
 	h.Path = &p
 	return h
 }
 
 // SetMaxConsecutiveFailures sets the maximum consecutive failures on the health check.
-func (h HealthCheck) SetMaxConsecutiveFailures(i int) HealthCheck {
+func (h *HealthCheck) SetMaxConsecutiveFailures(i int) *HealthCheck {
 	h.MaxConsecutiveFailures = &i
 	return h
 }
 
 // SetIgnoreHTTP1xx sets ignore http 1xx on the health check.
-func (h HealthCheck) SetIgnoreHTTP1xx(ignore bool) HealthCheck {
+func (h *HealthCheck) SetIgnoreHTTP1xx(ignore bool) *HealthCheck {
 	h.IgnoreHTTP1xx = &ignore
 	return h
 }

vendor/github.com/gambol99/go-marathon/info.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.

vendor/github.com/gambol99/go-marathon/last_task_failure.go

@@ -1,4 +1,5 @@
 /*
+Copyright 2015 The go-marathon Authors 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.
@@ -20,6 +21,7 @@ type LastTaskFailure struct {
 	AppID     string `json:"appId,omitempty"`
 	Host      string `json:"host,omitempty"`
 	Message   string `json:"message,omitempty"`
+	SlaveID   string `json:"slaveId,omitempty"`
 	State     string `json:"state,omitempty"`
 	TaskID    string `json:"taskId,omitempty"`
 	Timestamp string `json:"timestamp,omitempty"`

vendor/github.com/gambol99/go-marathon/port_definition.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2016 Rohith All rights reserved.
+Copyright 2016 The go-marathon Authors 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.
@@ -27,15 +27,39 @@ type PortDefinition struct {
 }
 
 // SetPort sets the given port for the PortDefinition
-func (p PortDefinition) SetPort(port int) PortDefinition {
+func (p *PortDefinition) SetPort(port int) *PortDefinition {
+	if p.Port == nil {
+		p.EmptyPort()
+	}
 	p.Port = &port
 	return p
 }
 
+// EmptyPort sets the port to 0 for the PortDefinition
+func (p *PortDefinition) EmptyPort() *PortDefinition {
+	port := 0
+	p.Port = &port
+	return p
+}
+
+// SetProtocol sets the protocol for the PortDefinition
+// protocol: the protocol as a string
+func (p *PortDefinition) SetProtocol(protocol string) *PortDefinition {
+	p.Protocol = protocol
+	return p
+}
+
+// SetName sets the name for the PortDefinition
+// name: the name of the PortDefinition
+func (p *PortDefinition) SetName(name string) *PortDefinition {
+	p.Name = name
+	return p
+}
+
 // AddLabel adds a label to the PortDefinition
 //		name: the name of the label
 //		value: value for this label
-func (p PortDefinition) AddLabel(name, value string) PortDefinition {
+func (p *PortDefinition) AddLabel(name, value string) *PortDefinition {
 	if p.Labels == nil {
 		p.EmptyLabels()
 	}

vendor/github.com/gambol99/go-marathon/queue.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2016 Rohith All rights reserved.
+Copyright 2016 The go-marathon Authors 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.
@@ -52,9 +52,5 @@ func (r *marathonClient) Queue() (*Queue, error) {
 //		appID:		the ID of the application
 func (r *marathonClient) DeleteQueueDelay(appID string) error {
 	path := fmt.Sprintf("%s/%s/delay", marathonAPIQueue, trimRootPath(appID))
-	err := r.apiDelete(path, nil, nil)
-	if err != nil {
-		return err
-	}
-	return nil
+	return r.apiDelete(path, nil, nil)
 }

vendor/github.com/gambol99/go-marathon/readiness.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2017 Rohith All rights reserved.
+Copyright 2017 The go-marathon Authors 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.

vendor/github.com/gambol99/go-marathon/residency.go

@@ -0,0 +1,48 @@
+/*
+Copyright 2017 The go-marathon Authors 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
+
+import "time"
+
+// TaskLostBehaviorType sets action taken when the resident task is lost
+type TaskLostBehaviorType string
+
+const (
+	// TaskLostBehaviorTypeWaitForever indicates to not take any action when the resident task is lost
+	TaskLostBehaviorTypeWaitForever TaskLostBehaviorType = "WAIT_FOREVER"
+	// TaskLostBehaviorTypeWaitForever indicates to try relaunching the lost resident task on
+	// another node after the relaunch escalation timeout has elapsed
+	TaskLostBehaviorTypeRelaunchAfterTimeout TaskLostBehaviorType = "RELAUNCH_AFTER_TIMEOUT"
+)
+
+// Residency defines how terminal states of tasks with local persistent volumes are handled
+type Residency struct {
+	TaskLostBehavior                 TaskLostBehaviorType `json:"taskLostBehavior,omitempty"`
+	RelaunchEscalationTimeoutSeconds int                  `json:"relaunchEscalationTimeoutSeconds,omitempty"`
+}
+
+// SetTaskLostBehavior sets the residency behavior
+func (r *Residency) SetTaskLostBehavior(behavior TaskLostBehaviorType) *Residency {
+	r.TaskLostBehavior = behavior
+	return r
+}
+
+// SetRelaunchEscalationTimeout sets the residency relaunch escalation timeout with seconds precision
+func (r *Residency) SetRelaunchEscalationTimeout(timeout time.Duration) *Residency {
+	r.RelaunchEscalationTimeoutSeconds = int(timeout.Seconds())
+	return r
+}

vendor/github.com/gambol99/go-marathon/subscription.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -103,8 +103,7 @@ func (r *marathonClient) registerSubscription() error {
 	case EventsTransportCallback:
 		return r.registerCallbackSubscription()
 	case EventsTransportSSE:
-		r.registerSSESubscription()
-		return nil
+		return r.registerSSESubscription()
 	default:
 		return fmt.Errorf("the events transport: %d is not supported", r.config.EventsTransport)
 	}
@@ -167,27 +166,34 @@ func (r *marathonClient) registerCallbackSubscription() error {
 // connect to the SSE stream and to process the received events. To establish
 // the connection it tries the active cluster members until no more member is
 // active. When this happens it will retry to get a connection every 5 seconds.
-func (r *marathonClient) registerSSESubscription() {
+func (r *marathonClient) registerSSESubscription() error {
 	if r.subscribedToSSE {
-		return
+		return nil
+	}
+
+	if r.config.HTTPSSEClient.Timeout != 0 {
+		return fmt.Errorf(
+			"global timeout must not be set for SSE connections (found %s) -- remove global timeout from HTTP client or provide separate SSE HTTP client without global timeout",
+			r.config.HTTPSSEClient.Timeout,
+		)
 	}
 
 	go func() {
 		for {
 			stream, err := r.connectToSSE()
 			if err != nil {
-				r.debugLog.Printf("Error connecting SSE subscription: %s", err)
+				r.debugLog("Error connecting SSE subscription: %s", err)
 				<-time.After(5 * time.Second)
 				continue
 			}
-
 			err = r.listenToSSE(stream)
 			stream.Close()
-			r.debugLog.Printf("Error on SSE subscription: %s", err)
+			r.debugLog("Error on SSE subscription: %s", err)
 		}
 	}()
 
 	r.subscribedToSSE = true
+	return nil
 }
 
 // connectToSSE tries to establish an *eventsource.Stream to any of the Marathon cluster members, marking the
@@ -209,15 +215,15 @@ func (r *marathonClient) connectToSSE() (*eventsource.Stream, error) {
 		// its underlying fields for performance reasons. See note that at least the Transport
 		// should be reused here: https://golang.org/pkg/net/http/#Client
 		httpClient := &http.Client{
-			Transport:     r.config.HTTPClient.Transport,
-			CheckRedirect: r.config.HTTPClient.CheckRedirect,
-			Jar:           r.config.HTTPClient.Jar,
-			Timeout:       r.config.HTTPClient.Timeout,
+			Transport:     r.config.HTTPSSEClient.Transport,
+			CheckRedirect: r.config.HTTPSSEClient.CheckRedirect,
+			Jar:           r.config.HTTPSSEClient.Jar,
+			Timeout:       r.config.HTTPSSEClient.Timeout,
 		}
 
 		stream, err := eventsource.SubscribeWith("", httpClient, request)
 		if err != nil {
-			r.debugLog.Printf("Error subscribing to Marathon event stream: %s", err)
+			r.debugLog("Error subscribing to Marathon event stream: %s", err)
 			r.hosts.markDown(member)
 			continue
 		}
@@ -231,7 +237,7 @@ func (r *marathonClient) listenToSSE(stream *eventsource.Stream) error {
 		select {
 		case ev := <-stream.Events:
 			if err := r.handleEvent(ev.Data()); err != nil {
-				r.debugLog.Printf("listenToSSE(): failed to handle event: %v", err)
+				r.debugLog("listenToSSE(): failed to handle event: %v", err)
 			}
 		case err := <-stream.Errors:
 			return err
@@ -319,12 +325,12 @@ func (r *marathonClient) handleCallbackEvent(writer http.ResponseWriter, request
 	body, err := ioutil.ReadAll(request.Body)
 	if err != nil {
 		// TODO should this return a 500?
-		r.debugLog.Printf("handleCallbackEvent(): failed to read request body, error: %s\n", err)
+		r.debugLog("handleCallbackEvent(): failed to read request body, error: %s", err)
 		return
 	}
 
 	if err := r.handleEvent(string(body[:])); err != nil {
 		// TODO should this return a 500?
-		r.debugLog.Printf("handleCallbackEvent(): failed to handle event: %v\n", err)
+		r.debugLog("handleCallbackEvent(): failed to handle event: %v", err)
 	}
 }

vendor/github.com/gambol99/go-marathon/task.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -217,7 +217,7 @@ func (r *Task) allHealthChecksAlive() bool {
 	}
 	// step: check the health results then
 	for _, check := range r.HealthCheckResults {
-		if check.Alive == false {
+		if !check.Alive {
 			return false
 		}
 	}

vendor/github.com/gambol99/go-marathon/unreachable_strategy.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2017 Rohith All rights reserved.
+Copyright 2017 The go-marathon Authors 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.
@@ -65,13 +65,13 @@ func (us *UnreachableStrategy) MarshalJSON() ([]byte, error) {
 }
 
 // SetInactiveAfterSeconds sets the period after which instance will be marked as inactive.
-func (us UnreachableStrategy) SetInactiveAfterSeconds(cap float64) UnreachableStrategy {
+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 {
+func (us *UnreachableStrategy) SetExpungeAfterSeconds(cap float64) *UnreachableStrategy {
 	us.ExpungeAfterSeconds = &cap
 	return us
 }

vendor/github.com/gambol99/go-marathon/upgrade_strategy.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.
@@ -23,13 +23,13 @@ type UpgradeStrategy struct {
 }
 
 // SetMinimumHealthCapacity sets the minimum health capacity.
-func (us UpgradeStrategy) SetMinimumHealthCapacity(cap float64) UpgradeStrategy {
+func (us *UpgradeStrategy) SetMinimumHealthCapacity(cap float64) *UpgradeStrategy {
 	us.MinimumHealthCapacity = &cap
 	return us
 }
 
 // SetMaximumOverCapacity sets the maximum over capacity.
-func (us UpgradeStrategy) SetMaximumOverCapacity(cap float64) UpgradeStrategy {
+func (us *UpgradeStrategy) SetMaximumOverCapacity(cap float64) *UpgradeStrategy {
 	us.MaximumOverCapacity = &cap
 	return us
 }

vendor/github.com/gambol99/go-marathon/utils.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2014 Rohith All rights reserved.
+Copyright 2014 The go-marathon Authors 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.