marathon

package module
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 Go to latest Published: Feb 20, 2017 License: Apache-2.0 Imports: 18 Imported by: 0

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Go-Marathon

Go-marathon is a API library for working with Marathon. It currently supports

  • Application and group deployment
  • Helper filters for pulling the status, configuration and tasks
  • Multiple Endpoint support for HA deployments
  • Marathon Event Subscriptions and Event Streams

Note: the library is still under active development; users should expect frequent (possibly breaking) API changes for the time being.

It requires Go version 1.5 or higher.

Code Examples

There is also an examples directory in the source which shows hints and snippets of code of how to use it — which is probably the best place to start.

You can use examples/docker-compose.yml in order to start a test cluster.

Creating a client
import (
	marathon "github.com/gambol99/go-marathon"
)

marathonURL := "http://10.241.1.71:8080"
config := marathon.NewDefaultConfig()
config.URL = marathonURL
client, err := marathon.NewClient(config)
if err != nil {
	log.Fatalf("Failed to create a client for marathon, error: %s", err)
}

applications, err := client.Applications()
...

Note, you can also specify multiple endpoint for Marathon (i.e. you have setup Marathon in HA mode and having multiple running)

marathonURL := "http://10.241.1.71:8080,10.241.1.72:8080,10.241.1.73:8080"

The first one specified will be used, if that goes offline the member is marked as "unavailable" and a background process will continue to ping the member until it's back online.

Custom HTTP Client

If you wish to override the http client (by default http.DefaultClient) used by the API; use cases bypassing TLS verification, load root CA's or change the timeouts etc, you can pass a custom client in the config.

marathonURL := "http://10.241.1.71:8080"
config := marathon.NewDefaultConfig()
config.URL = marathonURL
config.HTTPClient = &http.Client{
    Timeout: (time.Duration(10) * time.Second),
    Transport: &http.Transport{
        Dial: (&net.Dialer{
            Timeout:   10 * time.Second,
            KeepAlive: 10 * time.Second,
        }).Dial,
        TLSClientConfig: &tls.Config{
            InsecureSkipVerify: true,
        },
    },
}
Listing the applications
applications, err := client.Applications()
if err != nil {
	log.Fatalf("Failed to list applications")
}

log.Printf("Found %d applications running", len(applications.Apps))
for _, application := range applications.Apps {
	log.Printf("Application: %s", application)
	details, err := client.Application(application.ID)
	assert(err)
	if details.Tasks != nil && len(details.Tasks) > 0 {
		for _, task := range details.Tasks {
			log.Printf("task: %s", task)
		}
		// check the health of the application
		health, err := client.ApplicationOK(details.ID)
		log.Printf("Application: %s, healthy: %t", details.ID, health)
	}
}
Creating a new application
log.Printf("Deploying a new application")
application := marathon.NewDockerApplication().
  Name(applicationName).
  CPU(0.1).
  Memory(64).
  Storage(0.0).
  Count(2).
  AddArgs("/usr/sbin/apache2ctl", "-D", "FOREGROUND").
  AddEnv("NAME", "frontend_http").
  AddEnv("SERVICE_80_NAME", "test_http").
  CheckHTTP("/health", 10, 5)

application.
  Container.Docker.Container("quay.io/gambol99/apache-php:latest").
  Bridged().
  Expose(80).
  Expose(443)

if _, err := client.CreateApplication(application); err != nil {
	log.Fatalf("Failed to create application: %s, error: %s", application, err)
} else {
	log.Printf("Created the application: %s", application)
}

Note: Applications may also be defined by means of initializing a marathon.Application struct instance directly. However, go-marathon's DSL as shown above provides a more concise way to achieve the same.

Scaling application

Change the number of application instances to 4

log.Printf("Scale to 4 instances")
if err := client.ScaleApplicationInstances(application.ID, 4); err != nil {
	log.Fatalf("Failed to delete the application: %s, error: %s", application, err)
} else {
	client.WaitOnApplication(application.ID, 30 * time.Second)
	log.Printf("Successfully scaled the application")
}
Subscription & Events

Request to listen to events related to applications — namely status updates, health checks changes and failures. There are two different event transports controlled by EventsTransport setting with the following possible values: EventsTransportSSE and EventsTransportCallback (default value). See Event Stream and Event Subscriptions for details.

Event subscriptions can also be individually controlled with the Subscribe and Unsubscribe functions. See Controlling subscriptions for more details.

Event Stream

Only available in Marathon >= 0.9.0. Does not require any special configuration or prerequisites.

// Configure client
config := marathon.NewDefaultConfig()
config.URL = marathonURL
config.EventsTransport = marathon.EventsTransportSSE

client, err := marathon.NewClient(config)
if err != nil {
	log.Fatalf("Failed to create a client for marathon, error: %s", err)
}

// Register for events
events, err = client.AddEventsListener(marathon.EventIDApplications)
if err != nil {
	log.Fatalf("Failed to register for events, %s", err)
}

timer := time.After(60 * time.Second)
done := false

// Receive events from channel for 60 seconds
for {
	if done {
		break
	}
	select {
	case <-timer:
		log.Printf("Exiting the loop")
		done = true
	case event := <-events:
		log.Printf("Received event: %s", event)
	}
}

// Unsubscribe from Marathon events
client.RemoveEventsListener(events)
Event Subscriptions

Requires to start a built-in web server accessible by Marathon to connect and push events to. Consider the following additional settings:

  • EventsInterface — the interface we should be listening on for events. Default "eth0".
  • EventsPort — built-in web server port. Default 10001.
  • CallbackURL — custom callback URL. Default "".
// Configure client
config := marathon.NewDefaultConfig()
config.URL = marathonURL
config.EventsInterface = marathonInterface
config.EventsPort = marathonPort

client, err := marathon.NewClient(config)
if err != nil {
	log.Fatalf("Failed to create a client for marathon, error: %s", err)
}

// Register for events
events, err = client.AddEventsListener(marathon.EventIDApplications)
if err != nil {
	log.Fatalf("Failed to register for events, %s", err)
}

timer := time.After(60 * time.Second)
done := false

// Receive events from channel for 60 seconds
for {
	if done {
		break
	}
	select {
	case <-timer:
		log.Printf("Exiting the loop")
		done = true
	case event := <-events:
		log.Printf("Received event: %s", event)
	}
}

// Unsubscribe from Marathon events
client.RemoveEventsListener(events)

See events.go for a full list of event IDs.

Controlling subscriptions

If you simply want to (de)register event subscribers (i.e. without starting an internal web server) you can use the Subscribe and Unsubscribe methods.

// Configure client
config := marathon.NewDefaultConfig()
config.URL = marathonURL

client, err := marathon.NewClient(config)
if err != nil {
	log.Fatalf("Failed to create a client for marathon, error: %s", err)
}

// Register an event subscriber via a callback URL
callbackURL := "http://10.241.1.71:9494"
if err := client.Subscribe(callbackURL); err != nil {
	log.Fatalf("Unable to register the callbackURL [%s], error: %s", callbackURL, err)
}

// Deregister the same subscriber
if err := client.Unsubscribe(callbackURL); err != nil {
	log.Fatalf("Unable to deregister the callbackURL [%s], error: %s", callbackURL, err)
}

Contributing

See the contribution guidelines.

Development

Marathon Fake

go-marathon employs a fake Marathon implementation for testing purposes. It maintains a YML-encoded list of HTTP response messages which are returned upon a successful match based upon a number of attributes, the so-called message identifier:

  • HTTP URI (without the protocol and the hostname, e.g., /v2/apps)
  • HTTP method (e.g., GET)
  • response content (i.e., the message returned)
  • scope (see below)
Response Content

The response content can be provided in one of two forms:

  • static: A pure response message returned on every match, including repeated queries.
  • index: A list of response messages associated to a particular (indexed) sequence order. A message will be returned iff it matches and its zero-based index equals the current request count.

An example for a trivial static response content is

- uri: /v2/apps
  method: POST
  content: |
		{
		"app": {
		}
		}

which would be returned for every POST request targetting /v2/apps.

An indexed response content would look like:

- uri: /v2/apps
  method: POST
  contentSequence:
		- index: 1
		- content: |
			{
			"app": {
				"id": "foo"
			}
			}
		- index: 3
		- content: |
			{
			"app": {
				"id": "bar"
			}
			}

What this means is that the first POST request to /v2/apps would yield a 404, the second one the foo app, the third one 404 again, the fourth one bar, and every following request thereafter a 404 again. Indexed responses enable more flexible testing required by some use cases.

Trying to define both a static and indexed response content constitutes an error and leads to panic.

Scope

By default, all responses are defined globally: Every message can be queried by any request across all tests. This enables reusability and allows to keep the YML definition fairly short. For certain cases, however, it is desirable to define a set of responses that are delivered exclusively for a particular test. Scopes offer a means to do so by representing a concept similar to namespaces. Combined with indexed responses, they allow to return different responses for message identifiers already defined at the global level.

Scopes do not have a particular format -- they are just strings. A scope must be defined in two places: The message specification and the server configuration. They are pure strings without any particular structure. Given the messages specification

- uri: /v2/apps
  method: GET
	# Note: no scope defined.
  content: |
		{
		"app": {
			"id": "foo"
		}
		}
- uri: /v2/apps
  method: GET
	scope: v1.1.1  # This one does have a scope.
  contentSequence:
		- index: 1
		- content: |
			{
			"app": {
				"id": "bar"
			}
			}

and the tests

func TestFoo(t * testing.T) {
	endpoint := newFakeMarathonEndpoint(t, nil)  // No custom configs given.
	defer endpoint.Close()
	app, err := endpoint.Client.Applications()
	// Do something with "foo"
}

func TestFoo(t * testing.T) {
	endpoint := newFakeMarathonEndpoint(t, &configContainer{
		server: &serverConfig{
			scope: "v1.1.1",		// Matches the message spec's scope.
		},
	})
	defer endpoint.Close()
	app, err := endpoint.Client.Applications()
	// Do something with "bar"
}

The "foo" response can be used by all tests using the default fake endpoint (such as TestFoo), while the "bar" response is only visible by tests that explicitly set the scope to 1.1.1 (as TestBar does) and query the endpoint twice.

Documentation

Index

Examples

Constants

View Source 
const (
	// ErrCodeBadRequest specifies a 400 Bad Request error.
	ErrCodeBadRequest = iota
	// ErrCodeUnauthorized specifies a 401 Unauthorized error.
	ErrCodeUnauthorized
	// ErrCodeForbidden specifies a 403 Forbidden error.
	ErrCodeForbidden
	// ErrCodeNotFound specifies a 404 Not Found error.
	ErrCodeNotFound
	// ErrCodeDuplicateID specifies a PUT 409 Conflict error.
	ErrCodeDuplicateID
	// ErrCodeAppLocked specifies a POST 409 Conflict error.
	ErrCodeAppLocked
	// ErrCodeInvalidBean specifies a 422 UnprocessableEntity error.
	ErrCodeInvalidBean
	// ErrCodeServer specifies a 500+ Server error.
	ErrCodeServer
	// ErrCodeUnknown specifies an unknown error.
	ErrCodeUnknown
)
View Source 
const (
	// EventIDAPIRequest is the event listener ID for the corresponding event.
	EventIDAPIRequest = 1 << iota
	// EventIDStatusUpdate is the event listener ID for the corresponding event.
	EventIDStatusUpdate
	// EventIDFrameworkMessage is the event listener ID for the corresponding event.
	EventIDFrameworkMessage
	// EventIDSubscription is the event listener ID for the corresponding event.
	EventIDSubscription
	// EventIDUnsubscribed is the event listener ID for the corresponding event.
	EventIDUnsubscribed
	// EventIDStreamAttached is the event listener ID for the corresponding event.
	EventIDStreamAttached
	// EventIDStreamDetached is the event listener ID for the corresponding event.
	EventIDStreamDetached
	// EventIDAddHealthCheck is the event listener ID for the corresponding event.
	EventIDAddHealthCheck
	// EventIDRemoveHealthCheck is the event listener ID for the corresponding event.
	EventIDRemoveHealthCheck
	// EventIDFailedHealthCheck is the event listener ID for the corresponding event.
	EventIDFailedHealthCheck
	// EventIDChangedHealthCheck is the event listener ID for the corresponding event.
	EventIDChangedHealthCheck
	// EventIDGroupChangeSuccess is the event listener ID for the corresponding event.
	EventIDGroupChangeSuccess
	// EventIDGroupChangeFailed is the event listener ID for the corresponding event.
	EventIDGroupChangeFailed
	// EventIDDeploymentSuccess is the event listener ID for the corresponding event.
	EventIDDeploymentSuccess
	// EventIDDeploymentFailed is the event listener ID for the corresponding event.
	EventIDDeploymentFailed
	// EventIDDeploymentInfo is the event listener ID for the corresponding event.
	EventIDDeploymentInfo
	// EventIDDeploymentStepSuccess is the event listener ID for the corresponding event.
	EventIDDeploymentStepSuccess
	// EventIDDeploymentStepFailed is the event listener ID for the corresponding event.
	EventIDDeploymentStepFailed
	// EventIDAppTerminated is the event listener ID for the corresponding event.
	EventIDAppTerminated
	//EventIDApplications comprises all listener IDs for application events.
	EventIDApplications = EventIDStatusUpdate | EventIDChangedHealthCheck | EventIDFailedHealthCheck | EventIDAppTerminated
	//EventIDSubscriptions comprises all listener IDs for subscription events.
	EventIDSubscriptions = EventIDSubscription | EventIDUnsubscribed | EventIDStreamAttached | EventIDStreamDetached
)

Variables

View Source 
var (
	// ErrInvalidResponse is thrown when marathon responds with invalid or error response
	ErrInvalidResponse = errors.New("invalid response from Marathon")
	// ErrMarathonDown is thrown when all the marathon endpoints are down
	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")
)
View Source 
var (
	// ErrNoApplicationContainer is thrown when a container has been specified yet
	ErrNoApplicationContainer = errors.New("you have not specified a docker container yet")
)

Functions

func NewAPIError 

func NewAPIError(code int, content []byte) error

NewAPIError creates a new APIError instance from the given response code and content.

Types

type APIError 

type APIError struct {
	// ErrCode specifies the nature of the error.
	ErrCode int
	// contains filtered or unexported fields
}

APIError represents a generic API error.

func (*APIError) Error 

func (e *APIError) Error() string

type AllTasksOpts 

type AllTasksOpts struct {
	Status string `url:"status,omitempty"`
}

AllTasksOpts contains a payload for AllTasks method 

status:		Return only those tasks whose status matches this parameter.
		If not specified, all tasks are returned. Possible values: running, staging. Default: none.

type Application 

type Application struct {
	ID                         string               `json:"id,omitempty"`
	Cmd                        *string              `json:"cmd,omitempty"`
	Args                       *[]string            `json:"args,omitempty"`
	Constraints                *[][]string          `json:"constraints,omitempty"`
	Container                  *Container           `json:"container,omitempty"`
	CPUs                       float64              `json:"cpus,omitempty"`
	Disk                       *float64             `json:"disk,omitempty"`
	Env                        *map[string]string   `json:"env,omitempty"`
	Executor                   *string              `json:"executor,omitempty"`
	HealthChecks               *[]HealthCheck       `json:"healthChecks,omitempty"`
	Instances                  *int                 `json:"instances,omitempty"`
	Mem                        *float64             `json:"mem,omitempty"`
	Tasks                      []*Task              `json:"tasks,omitempty"`
	Ports                      []int                `json:"ports"`
	PortDefinitions            *[]PortDefinition    `json:"portDefinitions,omitempty"`
	RequirePorts               *bool                `json:"requirePorts,omitempty"`
	BackoffSeconds             *float64             `json:"backoffSeconds,omitempty"`
	BackoffFactor              *float64             `json:"backoffFactor,omitempty"`
	MaxLaunchDelaySeconds      *float64             `json:"maxLaunchDelaySeconds,omitempty"`
	TaskKillGracePeriodSeconds *float64             `json:"taskKillGracePeriodSeconds,omitempty"`
	Deployments                []map[string]string  `json:"deployments,omitempty"`
	Dependencies               []string             `json:"dependencies"`
	TasksRunning               int                  `json:"tasksRunning,omitempty"`
	TasksStaged                int                  `json:"tasksStaged,omitempty"`
	TasksHealthy               int                  `json:"tasksHealthy,omitempty"`
	TasksUnhealthy             int                  `json:"tasksUnhealthy,omitempty"`
	TaskStats                  map[string]TaskStats `json:"taskStats,omitempty"`
	User                       string               `json:"user,omitempty"`
	UpgradeStrategy            *UpgradeStrategy     `json:"upgradeStrategy,omitempty"`
	Uris                       *[]string            `json:"uris,omitempty"`
	Version                    string               `json:"version,omitempty"`
	VersionInfo                *VersionInfo         `json:"versionInfo,omitempty"`
	Labels                     *map[string]string   `json:"labels,omitempty"`
	AcceptedResourceRoles      []string             `json:"acceptedResourceRoles,omitempty"`
	LastTaskFailure            *LastTaskFailure     `json:"lastTaskFailure,omitempty"`
	Fetch                      *[]Fetch             `json:"fetch,omitempty"`
	IPAddressPerTask           *IPAddressPerTask    `json:"ipAddress,omitempty"`
}

Application is the definition for an application in marathon

func NewDockerApplication 

func NewDockerApplication() *Application

NewDockerApplication creates a default docker application

func (*Application) AddArgs added in v0.1.0 

func (r *Application) AddArgs(arguments ...string) *Application

AddArgs adds one or more arguments to the applications 

arguments:	the argument(s) you are adding

func (*Application) AddConstraint added in v0.1.0 

func (r *Application) AddConstraint(constraints ...string) *Application

AddConstraint adds a new constraint 

constraints:	the constraint definition, one constraint per array element
Example 
app := NewDockerApplication()

// add two constraints
app.AddConstraint("hostname", "UNIQUE").
	AddConstraint("rack_id", "CLUSTER", "rack-1")

Output:

func (*Application) AddEnv 

func (r *Application) AddEnv(name, value string) *Application

AddEnv adds an environment variable to the application 

name:	the name of the variable
value:	go figure, the value associated to the above

func (*Application) AddFetchURIs added in v0.1.0 

func (r *Application) AddFetchURIs(fetchURIs ...Fetch) *Application

AddFetchURIs adds one or more fetch URIs to the application. 

fetchURIs:	the fetch URI(s) to add.

func (*Application) AddHealthCheck added in v0.1.0 

func (r *Application) AddHealthCheck(healthCheck HealthCheck) *Application

AddHealthCheck adds a health check 

healthCheck the health check that should be added

func (*Application) AddLabel 

func (r *Application) AddLabel(name, value string) *Application

AddLabel adds a label to the application 

name:	the name of the label
value: value for this label

func (*Application) AddPortDefinition added in v0.2.0 

func (r *Application) AddPortDefinition(portDefinition PortDefinition) *Application

AddPortDefinition adds a port definition. Port definitions are used to define ports that should be considered part of a resource. They are necessary when you are using HOST networking and no port mappings are specified.

func (*Application) AddUris added in v0.1.0 

func (r *Application) AddUris(newUris ...string) *Application

AddUris adds one or more uris to the applications 

arguments:	the uri(s) you are adding

func (*Application) AllTaskRunning 

func (r *Application) AllTaskRunning() bool

AllTaskRunning checks to see if all the application tasks are running, i.e. the instances is equal to the number of running tasks

func (*Application) CPU 

func (r *Application) CPU(cpu float64) *Application

CPU set the amount of CPU shares per instance which is assigned to the application 

cpu:	the CPU shared (check Docker docs) per instance

func (*Application) CheckHTTP 

func (r *Application) CheckHTTP(uri string, port, interval int) (*Application, error)

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 (*Application) CheckTCP 

func (r *Application) CheckTCP(port, interval int) (*Application, error)

CheckTCP adds a TCP check to an application; note the port mapping must already exist, or an error will thrown 

port: 		the port the check should, err, check
interval:	the interval in seconds the check should be performed

func (*Application) Command added in v0.1.0 

func (r *Application) Command(cmd string) *Application

Command sets the cmd of the application

func (*Application) Count 

func (r *Application) Count(count int) *Application

Count sets the number of instances of the application to run 

count:	the number of instances to run

func (*Application) DependsOn 

func (r *Application) DependsOn(names ...string) *Application

DependsOn adds one or more dependencies for this application. Note, if you want to wait for an application dependency to actually be UP, i.e. not just deployed, you need a health check on the dependant app. 

names:	the application id(s) this application depends on

func (*Application) DeploymentIDs 

func (r *Application) DeploymentIDs() []*DeploymentID

DeploymentIDs retrieves the application deployments IDs

func (*Application) EmptyArgs added in v0.1.0 

func (r *Application) EmptyArgs() *Application

EmptyArgs explicitly empties arguments -- use this if you need to empty arguments of an application that already has arguments set (setting args to nil will keep the current value)

func (*Application) EmptyConstraints added in v0.1.0 

func (r *Application) EmptyConstraints() *Application

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 (*Application) EmptyEnvs added in v0.1.0 

func (r *Application) EmptyEnvs() *Application

EmptyEnvs explicitly empties the envs -- use this if you need to empty the environments of an application that already has environments set (setting env to nil will keep the current value)

func (*Application) EmptyFetchURIs added in v0.1.0 

func (r *Application) EmptyFetchURIs() *Application

EmptyFetchURIs explicitly empties fetch URIs -- use this if you need to empty fetch URIs of an application that already has fetch URIs set. Setting fetch URIs to nil will keep the current value.

func (*Application) EmptyHealthChecks added in v0.1.0 

func (r *Application) EmptyHealthChecks() *Application

EmptyHealthChecks explicitly empties health checks -- use this if you need to empty health checks of an application that already has health checks set (setting health checks to nil will keep the current value)

func (*Application) EmptyLabels added in v0.1.0 

func (r *Application) EmptyLabels() *Application

EmptyLabels explicitly empties the labels -- use this if you need to empty the labels of an application that already has labels set (setting labels to nil will keep the current value)

func (*Application) EmptyPortDefinitions added in v0.2.0 

func (r *Application) EmptyPortDefinitions() *Application

EmptyPortDefinitions explicitly empties port definitions -- use this if you need to empty port definitions of an application that already has port definitions set (setting port definitions to nil will keep the current value)

func (*Application) EmptyUpgradeStrategy added in v0.7.0 

func (r *Application) EmptyUpgradeStrategy() *Application

EmptyUpgradeStrategy explicitly empties the upgrade strategy -- use this if you need to empty the upgrade strategy of an application that already has the upgrade strategy set (setting it to nil will keep the current value).

func (*Application) EmptyUris added in v0.1.0 

func (r *Application) EmptyUris() *Application

EmptyUris explicitly empties uris -- use this if you need to empty uris of an application that already has uris set (setting uris to nil will keep the current value)

func (*Application) HasHealthChecks 

func (r *Application) HasHealthChecks() bool

HasHealthChecks is a helper method, used to check if an application has health checks

func (*Application) Memory 

func (r *Application) Memory(memory float64) *Application

Memory sets he amount of memory the application can consume per instance 

memory:	the amount of MB to assign

func (*Application) Name 

func (r *Application) Name(id string) *Application

Name sets the name / ID of the application i.e. the identifier for this application

func (*Application) SetExecutor added in v0.1.0 

func (r *Application) SetExecutor(executor string) *Application

SetExecutor sets the executor

func (*Application) SetIPAddressPerTask added in v0.4.0 

func (r *Application) SetIPAddressPerTask(ipAddressPerTask IPAddressPerTask) *Application

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.

func (*Application) SetTaskKillGracePeriod added in v0.6.0 

func (r *Application) SetTaskKillGracePeriod(seconds float64) *Application

SetTaskKillGracePeriod sets the number of seconds between escalating from SIGTERM to SIGKILL when signalling tasks to terminate. Using this grace period, tasks should perform orderly shut down immediately upon receiving SIGTERM. 

seconds:	the number of seconds

func (*Application) SetUpgradeStrategy added in v0.7.0 

func (r *Application) SetUpgradeStrategy(us UpgradeStrategy) *Application

SetUpgradeStrategy sets the upgrade strategy.

func (*Application) Storage 

func (r *Application) Storage(disk float64) *Application

Storage sets the amount of disk space the application is assigned, which for docker application I don't believe is relevant 

disk:	the disk space in MB

func (*Application) String added in v0.1.0 

func (r *Application) String() string

String returns the json representation of this application

type ApplicationVersion 

type ApplicationVersion struct {
	Version string `json:"version"`
}

ApplicationVersion is the application version response from marathon

type ApplicationVersions 

type ApplicationVersions struct {
	Versions []string `json:"versions"`
}

ApplicationVersions is a collection of application versions for a specific app in marathon

type Applications 

type Applications struct {
	Apps []Application `json:"apps"`
}

Applications is a collection of applications

type Command 

type Command struct {
	Value string `json:"value"`
}

Command is the command health check type

type Config 

type Config struct {
	// URL is the url for marathon
	URL string
	// EventsTransport is the events transport: EventsTransportCallback or EventsTransportSSE
	EventsTransport EventsTransport
	// EventsPort is the event handler port
	EventsPort int
	// the interface we should be listening on for events
	EventsInterface string
	// HTTPBasicAuthUser is the http basic auth
	HTTPBasicAuthUser string
	// HTTPBasicPassword is the http basic password
	HTTPBasicPassword string
	// CallbackURL custom callback url
	CallbackURL string
	// DCOSToken for DCOS environment, This will override the Authorization header
	DCOSToken string
	// LogOutput the output for debug log messages
	LogOutput io.Writer
	// HTTPClient is the http client
	HTTPClient *http.Client
	// wait time (in milliseconds) between repetitive requests to the API during polling
	PollingWaitTime time.Duration
}

Config holds the settings and options for the client

func NewDefaultConfig 

func NewDefaultConfig() Config

NewDefaultConfig create a default client config

type Container 

type Container struct {
	Type    string    `json:"type,omitempty"`
	Docker  *Docker   `json:"docker,omitempty"`
	Volumes *[]Volume `json:"volumes,omitempty"`
}

Container is the definition for a container type in marathon

func NewDockerContainer 

func NewDockerContainer() *Container

NewDockerContainer creates a default docker container for you

func (*Container) EmptyVolumes added in v0.1.0 

func (container *Container) EmptyVolumes() *Container

EmptyVolumes explicitly empties the volumes -- use this if you need to empty volumes of an application that already has volumes set (setting volumes to nil will keep the current value)

func (*Container) Volume 

func (container *Container) Volume(hostPath, containerPath, mode string) *Container

Volume attachs a volume to the container 

host_path:			the path on the docker host to map
container_path:		the path inside the container to map the host volume
mode:				the mode to map the container

type Delay added in v0.1.0 

type Delay struct {
	Overdue         bool `json:"overdue"`
	TimeLeftSeconds int  `json:"timeLeftSeconds"`
}

Delay cotains the application postpone infomation

type DeleteAppOpts added in v0.1.0 

type DeleteAppOpts struct {
	Force bool `url:"force,omitempty"`
}

DeleteAppOpts contains a payload for DeleteApplication method 

force:		overrides a currently running deployment.

type DeleteGroupOpts added in v0.1.0 

type DeleteGroupOpts struct {
	Force bool `url:"force,omitempty"`
}

DeleteGroupOpts contains a payload for DeleteGroup method 

force:		overrides a currently running deployment.

type Deployment 

type Deployment struct {
	ID             string              `json:"id"`
	Version        string              `json:"version"`
	CurrentStep    int                 `json:"currentStep"`
	TotalSteps     int                 `json:"totalSteps"`
	AffectedApps   []string            `json:"affectedApps"`
	Steps          [][]*DeploymentStep `json:"-"`
	XXStepsRaw     json.RawMessage     `json:"steps"` // Holds raw steps JSON to unmarshal later
	CurrentActions []*DeploymentStep   `json:"currentActions"`
}

Deployment is a marathon deployment definition

type DeploymentID 

type DeploymentID struct {
	DeploymentID string `json:"deploymentId"`
	Version      string `json:"version"`
}

DeploymentID is the identifier for a application deployment

type DeploymentPlan 

type DeploymentPlan struct {
	ID       string         `json:"id"`
	Version  string         `json:"version"`
	Original *Group         `json:"original"`
	Target   *Group         `json:"target"`
	Steps    []*StepActions `json:"steps"`
}

DeploymentPlan is a collection of steps for application deployment

type DeploymentStep 

type DeploymentStep struct {
	Action string `json:"action"`
	App    string `json:"app"`
}

DeploymentStep is a step in the application deployment plan

type Discovery added in v0.4.0 

type Discovery struct {
	Ports *[]Port `json:"ports,omitempty"`
}

Discovery provides info about ports expose by IP-per-task functionality

func (*Discovery) AddPort added in v0.4.0 

func (d *Discovery) AddPort(port Port) *Discovery

AddPort adds a port to the discovery info of a IP per task applicable 

port: The discovery port

func (*Discovery) EmptyPorts added in v0.4.0 

func (d *Discovery) EmptyPorts() *Discovery

EmptyPorts explicitly empties discovey port -- use this if you need to empty discovey port of an application that already has IP per task with discovey ports defined

type Docker 

type Docker struct {
	ForcePullImage *bool          `json:"forcePullImage,omitempty"`
	Image          string         `json:"image,omitempty"`
	Network        string         `json:"network,omitempty"`
	Parameters     *[]Parameters  `json:"parameters,omitempty"`
	PortMappings   *[]PortMapping `json:"portMappings,omitempty"`
	Privileged     *bool          `json:"privileged,omitempty"`
}

Docker is the docker definition from a marathon application

func (*Docker) AddParameter added in v0.1.0 

func (docker *Docker) AddParameter(key string, value string) *Docker

AddParameter adds a parameter to the docker execution line when creating the container 

key:			the name of the option to add
value:		the value of the option

func (*Docker) Bridged 

func (docker *Docker) Bridged() *Docker

Bridged sets the networking mode to bridged

func (*Docker) Container 

func (docker *Docker) Container(image string) *Docker

Container sets the image of the container 

image:			the image name you are using

func (*Docker) EmptyParameters added in v0.1.0 

func (docker *Docker) EmptyParameters() *Docker

EmptyParameters explicitly empties the parameters -- use this if you need to empty parameters of an application that already has parameters set (setting parameters to nil will keep the current value)

func (*Docker) EmptyPortMappings added in v0.1.0 

func (docker *Docker) EmptyPortMappings() *Docker

EmptyPortMappings explicitly empties the port mappings -- use this if you need to empty port mappings of an application that already has port mappings set (setting port mappings to nil will keep the current value)

func (*Docker) Expose 

func (docker *Docker) Expose(ports ...int) *Docker

Expose sets the container to expose the following TCP ports 

ports:			the TCP ports the container is exposing

func (*Docker) ExposePort 

func (docker *Docker) ExposePort(portMapping PortMapping) *Docker

ExposePort exposes an port in the container

func (*Docker) ExposeUDP 

func (docker *Docker) ExposeUDP(ports ...int) *Docker

ExposeUDP sets the container to expose the following UDP ports 

ports:			the UDP ports the container is exposing

func (*Docker) Host added in v0.1.0 

func (docker *Docker) Host() *Docker

Host sets the networking mode to host

func (*Docker) ServicePortIndex 

func (docker *Docker) ServicePortIndex(port int) (int, error)

ServicePortIndex finds the service port index of the exposed port 

port:			the port you are looking for

func (*Docker) SetForcePullImage added in v0.1.0 

func (docker *Docker) SetForcePullImage(forcePull bool) *Docker

SetForcePullImage sets whether the docker image should always be force pulled before starting an instance 

forcePull:			true / false

func (*Docker) SetPrivileged added in v0.1.0 

func (docker *Docker) SetPrivileged(priv bool) *Docker

SetPrivileged sets whether the docker image should be started with privilege turned on 

priv:			true / false

type Event 

type Event struct {
	ID    int
	Name  string
	Event interface{}
}

Event is the definition for a event in marathon

func GetEvent 

func GetEvent(eventType string) (*Event, error)

GetEvent returns allocated empty event object which corresponds to provided event type 

eventType:			the type of Marathon event

func (*Event) String 

func (event *Event) String() string

type EventAPIRequest 

type EventAPIRequest struct {
	EventType     string       `json:"eventType"`
	ClientIP      string       `json:"clientIp"`
	Timestamp     string       `json:"timestamp"`
	URI           string       `json:"uri"`
	AppDefinition *Application `json:"appDefinition"`
}

EventAPIRequest describes an 'api_post_event' event.

type EventAddHealthCheck 

type EventAddHealthCheck struct {
	AppID       string `json:"appId"`
	EventType   string `json:"eventType"`
	HealthCheck struct {
		GracePeriodSeconds     float64 `json:"gracePeriodSeconds"`
		IntervalSeconds        float64 `json:"intervalSeconds"`
		MaxConsecutiveFailures float64 `json:"maxConsecutiveFailures"`
		Path                   string  `json:"path"`
		PortIndex              float64 `json:"portIndex"`
		Protocol               string  `json:"protocol"`
		TimeoutSeconds         float64 `json:"timeoutSeconds"`
	} `json:"healthCheck"`
	Timestamp string `json:"timestamp"`
}

EventAddHealthCheck describes an 'add_health_check_event' event.

type EventAppTerminated 

type EventAppTerminated struct {
	EventType string `json:"eventType"`
	Timestamp string `json:"timestamp,omitempty"`
	AppID     string `json:"appId"`
}

EventAppTerminated describes an 'app_terminated_event' event.

type EventDeploymentFailed 

type EventDeploymentFailed struct {
	ID        string `json:"id"`
	EventType string `json:"eventType"`
	Timestamp string `json:"timestamp"`
}

EventDeploymentFailed describes a 'deployment_failed' event.

type EventDeploymentInfo 

type EventDeploymentInfo struct {
	EventType   string          `json:"eventType"`
	CurrentStep *StepActions    `json:"currentStep"`
	Timestamp   string          `json:"timestamp"`
	Plan        *DeploymentPlan `json:"plan"`
}

EventDeploymentInfo describes a 'deployment_info' event.

type EventDeploymentStepFailure 

type EventDeploymentStepFailure struct {
	EventType   string          `json:"eventType"`
	CurrentStep *StepActions    `json:"currentStep"`
	Timestamp   string          `json:"timestamp"`
	Plan        *DeploymentPlan `json:"plan"`
}

EventDeploymentStepFailure describes a 'deployment_step_failure' event.

type EventDeploymentStepSuccess 

type EventDeploymentStepSuccess struct {
	EventType   string          `json:"eventType"`
	CurrentStep *StepActions    `json:"currentStep"`
	Timestamp   string          `json:"timestamp"`
	Plan        *DeploymentPlan `json:"plan"`
}

EventDeploymentStepSuccess describes a 'deployment_step_success' event.

type EventDeploymentSuccess 

type EventDeploymentSuccess struct {
	ID        string `json:"id"`
	EventType string `json:"eventType"`
	Timestamp string `json:"timestamp"`
}

EventDeploymentSuccess describes a 'deployment_success' event.

type EventFailedHealthCheck 

type EventFailedHealthCheck struct {
	AppID       string `json:"appId"`
	EventType   string `json:"eventType"`
	HealthCheck struct {
		GracePeriodSeconds     float64 `json:"gracePeriodSeconds"`
		IntervalSeconds        float64 `json:"intervalSeconds"`
		MaxConsecutiveFailures float64 `json:"maxConsecutiveFailures"`
		Path                   string  `json:"path"`
		PortIndex              float64 `json:"portIndex"`
		Protocol               string  `json:"protocol"`
		TimeoutSeconds         float64 `json:"timeoutSeconds"`
	} `json:"healthCheck"`
	Timestamp string `json:"timestamp"`
}

EventFailedHealthCheck describes a 'failed_health_check_event' event.

type EventFrameworkMessage 

type EventFrameworkMessage struct {
	EventType  string `json:"eventType"`
	ExecutorID string `json:"executorId"`
	Message    string `json:"message"`
	SlaveID    string `json:"slaveId"`
	Timestamp  string `json:"timestamp"`
}

EventFrameworkMessage describes a 'framework_message_event' event.

type EventGroupChangeFailed 

type EventGroupChangeFailed struct {
	EventType string `json:"eventType"`
	GroupID   string `json:"groupId"`
	Timestamp string `json:"timestamp"`
	Version   string `json:"version"`
	Reason    string `json:"reason"`
}

EventGroupChangeFailed describes a 'group_change_failed' event.

type EventGroupChangeSuccess 

type EventGroupChangeSuccess struct {
	EventType string `json:"eventType"`
	GroupID   string `json:"groupId"`
	Timestamp string `json:"timestamp"`
	Version   string `json:"version"`
}

EventGroupChangeSuccess describes a 'group_change_success' event.

type EventHealthCheckChanged 

type EventHealthCheckChanged struct {
	EventType string `json:"eventType"`
	Timestamp string `json:"timestamp,omitempty"`
	AppID     string `json:"appId"`
	TaskID    string `json:"taskId"`
	Version   string `json:"version,omitempty"`
	Alive     bool   `json:"alive"`
}

EventHealthCheckChanged describes a 'health_status_changed_event' event.

type EventRemoveHealthCheck 

type EventRemoveHealthCheck struct {
	AppID       string `json:"appId"`
	EventType   string `json:"eventType"`
	HealthCheck struct {
		GracePeriodSeconds     float64 `json:"gracePeriodSeconds"`
		IntervalSeconds        float64 `json:"intervalSeconds"`
		MaxConsecutiveFailures float64 `json:"maxConsecutiveFailures"`
		Path                   string  `json:"path"`
		PortIndex              float64 `json:"portIndex"`
		Protocol               string  `json:"protocol"`
		TimeoutSeconds         float64 `json:"timeoutSeconds"`
	} `json:"healthCheck"`
	Timestamp string `json:"timestamp"`
}

EventRemoveHealthCheck describes a 'remove_health_check_event' event.

type EventStatusUpdate 

type EventStatusUpdate struct {
	EventType   string       `json:"eventType"`
	Timestamp   string       `json:"timestamp,omitempty"`
	SlaveID     string       `json:"slaveId,omitempty"`
	TaskID      string       `json:"taskId"`
	TaskStatus  string       `json:"taskStatus"`
	Message     string       `json:"message,omitempty"`
	AppID       string       `json:"appId"`
	Host        string       `json:"host"`
	Ports       []int        `json:"ports,omitempty"`
	IPAddresses []*IPAddress `json:"ipAddresses"`
	Version     string       `json:"version,omitempty"`
}

EventStatusUpdate describes a 'status_update_event' event.

type EventStreamAttached 

type EventStreamAttached struct {
	RemoteAddress string `json:"remoteAddress"`
	EventType     string `json:"eventType"`
	Timestamp     string `json:"timestamp"`
}

EventStreamAttached describes an 'event_stream_attached' event.

type EventStreamDetached 

type EventStreamDetached struct {
	RemoteAddress string `json:"remoteAddress"`
	EventType     string `json:"eventType"`
	Timestamp     string `json:"timestamp"`
}

EventStreamDetached describes an 'event_stream_detached' event.

type EventSubscription 

type EventSubscription struct {
	CallbackURL string `json:"callbackUrl"`
	ClientIP    string `json:"clientIp"`
	EventType   string `json:"eventType"`
	Timestamp   string `json:"timestamp"`
}

EventSubscription describes a 'subscribe_event' event.

type EventType 

type EventType struct {
	EventType string `json:"eventType"`
}

EventType is a wrapper for a marathon event

type EventUnsubscription 

type EventUnsubscription struct {
	CallbackURL string `json:"callbackUrl"`
	ClientIP    string `json:"clientIp"`
	EventType   string `json:"eventType"`
	Timestamp   string `json:"timestamp"`
}

EventUnsubscription describes an 'unsubscribe_event' event.

type EventsChannel 

type EventsChannel chan *Event

EventsChannel is a channel to receive events upon

type EventsChannelContext added in v0.3.0 

type EventsChannelContext struct {
	// contains filtered or unexported fields
}

EventsChannelContext holds contextual data for an EventsChannel.

type EventsTransport 

type EventsTransport int

EventsTransport describes which transport should be used to deliver Marathon events 

const (
	// EventsTransportCallback activates callback events transport
	EventsTransportCallback EventsTransport = 1 << iota

	// EventsTransportSSE activates stream events transport
	EventsTransportSSE
)

type ExternalVolume added in v0.4.0 

type ExternalVolume struct {
	Name     string             `json:"name,omitempty"`
	Provider string             `json:"provider,omitempty"`
	Options  *map[string]string `json:"options,omitempty"`
}

ExternalVolume is an external volume definition

func (*ExternalVolume) AddOption added in v0.4.0 

func (ev *ExternalVolume) AddOption(name, value string) *ExternalVolume

AddOption adds an option to an ExternalVolume 

name:  the name of the option
value: value for the option

func (*ExternalVolume) EmptyOptions added in v0.4.0 

func (ev *ExternalVolume) EmptyOptions() *ExternalVolume

EmptyOptions explicitly empties the options

type Fetch added in v0.1.0 

type Fetch struct {
	URI        string `json:"uri"`
	Executable bool   `json:"executable"`
	Extract    bool   `json:"extract"`
	Cache      bool   `json:"cache"`
}

Fetch will download URI before task starts

type GetAppOpts added in v0.1.0 

type GetAppOpts struct {
	Embed []string `url:"embed,omitempty"`
}

GetAppOpts contains a payload for Application method 

embed:	Embeds nested resources that match the supplied path.
		You can specify this parameter multiple times with different values

type GetGroupOpts added in v0.1.0 

type GetGroupOpts struct {
	Embed []string `url:"embed,omitempty"`
}

GetGroupOpts contains a payload for Group and Groups method 

embed:		Embeds nested resources that match the supplied path.
			You can specify this parameter multiple times with different values

type Group 

type Group struct {
	ID           string         `json:"id"`
	Apps         []*Application `json:"apps"`
	Dependencies []string       `json:"dependencies"`
	Groups       []*Group       `json:"groups"`
}

Group is a marathon application group

func NewApplicationGroup 

func NewApplicationGroup(name string) *Group

NewApplicationGroup create a new application group 

name:			the name of the group

func (*Group) App 

func (r *Group) App(application *Application) *Group

App add a application to the group in question 

application:	a pointer to the Application

func (*Group) Name 

func (r *Group) Name(name string) *Group

Name sets the name of the group 

name:	the name of the group

type Groups 

type Groups struct {
	ID           string         `json:"id"`
	Apps         []*Application `json:"apps"`
	Dependencies []string       `json:"dependencies"`
	Groups       []*Group       `json:"groups"`
}

Groups is a collection of marathon application groups

type HealthCheck 

type HealthCheck struct {
	Command                *Command `json:"command,omitempty"`
	PortIndex              *int     `json:"portIndex,omitempty"`
	Port                   *int     `json:"port,omitempty"`
	Path                   *string  `json:"path,omitempty"`
	MaxConsecutiveFailures *int     `json:"maxConsecutiveFailures,omitempty"`
	Protocol               string   `json:"protocol,omitempty"`
	GracePeriodSeconds     int      `json:"gracePeriodSeconds,omitempty"`
	IntervalSeconds        int      `json:"intervalSeconds,omitempty"`
	TimeoutSeconds         int      `json:"timeoutSeconds,omitempty"`
}

HealthCheck is the definition for an application health check

func NewDefaultHealthCheck 

func NewDefaultHealthCheck() *HealthCheck

NewDefaultHealthCheck creates a default application health check

func (HealthCheck) SetCommand added in v0.1.0 

func (h HealthCheck) SetCommand(c Command) HealthCheck

SetCommand sets the given command on the health check.

func (HealthCheck) SetMaxConsecutiveFailures added in v0.1.0 

func (h HealthCheck) SetMaxConsecutiveFailures(i int) HealthCheck

SetMaxConsecutiveFailures sets the maximum consecutive failures on the health check.

func (HealthCheck) SetPath added in v0.1.0 

func (h HealthCheck) SetPath(p string) HealthCheck

SetPath sets the given path on the health check.

func (HealthCheck) SetPort added in v0.1.0 

func (h HealthCheck) SetPort(i int) HealthCheck

SetPort sets the given port on the health check.

func (HealthCheck) SetPortIndex added in v0.1.0 

func (h HealthCheck) SetPortIndex(i int) HealthCheck

SetPortIndex sets the given port index on the health check.

type HealthCheckResult 

type HealthCheckResult struct {
	Alive               bool   `json:"alive"`
	ConsecutiveFailures int    `json:"consecutiveFailures"`
	FirstSuccess        string `json:"firstSuccess"`
	LastFailure         string `json:"lastFailure"`
	LastFailureCause    string `json:"lastFailureCause"`
	LastSuccess         string `json:"lastSuccess"`
	TaskID              string `json:"taskId"`
}

HealthCheckResult is the health check result

type IPAddress added in v0.1.0 

type IPAddress struct {
	IPAddress string `json:"ipAddress"`
	Protocol  string `json:"protocol"`
}

IPAddress represents a task's IP address and protocol.

type IPAddressPerTask added in v0.4.0 

type IPAddressPerTask struct {
	Groups      *[]string          `json:"groups,omitempty"`
	Labels      *map[string]string `json:"labels,omitempty"`
	Discovery   *Discovery         `json:"discovery,omitempty"`
	NetworkName string             `json:"networkName,omitempty"`
}

IPAddressPerTask is used by IP-per-task functionality https://mesosphere.github.io/marathon/docs/ip-per-task.html

func (*IPAddressPerTask) AddGroup added in v0.4.0 

func (i *IPAddressPerTask) AddGroup(group string) *IPAddressPerTask

AddGroup adds a group to an IPAddressPerTask 

group: The group name

func (*IPAddressPerTask) AddLabel added in v0.4.0 

func (i *IPAddressPerTask) AddLabel(name, value string) *IPAddressPerTask

AddLabel adds a label to an IPAddressPerTask 

 name: The label name
value: The label value

func (*IPAddressPerTask) EmptyGroups added in v0.4.0 

func (i *IPAddressPerTask) EmptyGroups() *IPAddressPerTask

EmptyGroups explicitly empties groups -- use this if you need to empty groups of an application that already has IP per task with groups defined

func (*IPAddressPerTask) EmptyLabels added in v0.4.0 

func (i *IPAddressPerTask) EmptyLabels() *IPAddressPerTask

EmptyLabels explicitly empties labels -- use this if you need to empty labels of an application that already has IP per task with labels defined

func (*IPAddressPerTask) SetDiscovery added in v0.4.0 

func (i *IPAddressPerTask) SetDiscovery(discovery Discovery) *IPAddressPerTask

SetDiscovery define the discovery to an IPAddressPerTask 

discovery: The discovery struct

type Info 

type Info struct {
	EventSubscriber struct {
		HTTPEndpoints []string `json:"http_endpoints"`
		Type          string   `json:"type"`
	} `json:"event_subscriber"`
	FrameworkID string `json:"frameworkId"`
	HTTPConfig  struct {
		AssetsPath interface{} `json:"assets_path"`
		HTTPPort   float64     `json:"http_port"`
		HTTPSPort  float64     `json:"https_port"`
	} `json:"http_config"`
	Leader         string `json:"leader"`
	MarathonConfig struct {
		Checkpoint                     bool    `json:"checkpoint"`
		Executor                       string  `json:"executor"`
		FailoverTimeout                float64 `json:"failover_timeout"`
		FrameworkName                  string  `json:"framework_name"`
		Ha                             bool    `json:"ha"`
		Hostname                       string  `json:"hostname"`
		LeaderProxyConnectionTimeoutMs float64 `json:"leader_proxy_connection_timeout_ms"`
		LeaderProxyReadTimeoutMs       float64 `json:"leader_proxy_read_timeout_ms"`
		LocalPortMax                   float64 `json:"local_port_max"`
		LocalPortMin                   float64 `json:"local_port_min"`
		Master                         string  `json:"master"`
		MesosLeaderUIURL               string  `json:"mesos_leader_ui_url"`
		WebUIURL                       string  `json:"webui_url"`
		MesosRole                      string  `json:"mesos_role"`
		MesosUser                      string  `json:"mesos_user"`
		ReconciliationInitialDelay     float64 `json:"reconciliation_initial_delay"`
		ReconciliationInterval         float64 `json:"reconciliation_interval"`
		TaskLaunchTimeout              float64 `json:"task_launch_timeout"`
		TaskReservationTimeout         float64 `json:"task_reservation_timeout"`
	} `json:"marathon_config"`
	Name            string `json:"name"`
	Version         string `json:"version"`
	ZookeeperConfig struct {
		Zk              string `json:"zk"`
		ZkFutureTimeout struct {
			Duration float64 `json:"duration"`
		} `json:"zk_future_timeout"`
		ZkHosts   string  `json:"zk_hosts"`
		ZkPath    string  `json:"zk_path"`
		ZkState   string  `json:"zk_state"`
		ZkTimeout float64 `json:"zk_timeout"`
	} `json:"zookeeper_config"`
}

Info is the detailed stats returned from marathon info

type InvalidEndpointError added in v0.5.0 

type InvalidEndpointError struct {
	// contains filtered or unexported fields
}

InvalidEndpointError indicates a endpoint error in the marathon urls

func (*InvalidEndpointError) Error added in v0.5.0 

func (e *InvalidEndpointError) Error() string

Error returns the string message

type Item added in v0.1.0 

type Item struct {
	Count       int         `json:"count"`
	Delay       Delay       `json:"delay"`
	Application Application `json:"app"`
}

Item is the definition of element in the queue

type KillApplicationTasksOpts 

type KillApplicationTasksOpts struct {
	Host  string `url:"host,omitempty"`
	Scale bool   `url:"scale,omitempty"`
	Force bool   `url:"force,omitempty"`
}

KillApplicationTasksOpts contains a payload for KillApplicationTasks method 

host:		kill only those tasks on a specific host (optional)
scale:		Scale the app down (i.e. decrement its instances setting by the number of tasks killed) after killing the specified tasks

type KillTaskOpts 

type KillTaskOpts struct {
	Scale bool `url:"scale,omitempty"`
	Force bool `url:"force,omitempty"`
}

KillTaskOpts contains a payload for task killing methods 

scale:		Scale the app down

type LastTaskFailure 

type LastTaskFailure struct {
	AppID     string `json:"appId,omitempty"`
	Host      string `json:"host,omitempty"`
	Message   string `json:"message,omitempty"`
	State     string `json:"state,omitempty"`
	TaskID    string `json:"taskId,omitempty"`
	Timestamp string `json:"timestamp,omitempty"`
	Version   string `json:"version,omitempty"`
}

LastTaskFailure provides details on the last error experienced by an application

type Marathon 

type Marathon interface {

	// get a listing of the application ids
	ListApplications(url.Values) ([]string, error)
	// a list of application versions
	ApplicationVersions(name string) (*ApplicationVersions, error)
	// check a application version exists
	HasApplicationVersion(name, version string) (bool, error)
	// change an application to a different version
	SetApplicationVersion(name string, version *ApplicationVersion) (*DeploymentID, error)
	// check if an application is ok
	ApplicationOK(name string) (bool, error)
	// create an application in marathon
	CreateApplication(application *Application) (*Application, error)
	// delete an application
	DeleteApplication(name string, force bool) (*DeploymentID, error)
	// update an application in marathon
	UpdateApplication(application *Application, force bool) (*DeploymentID, error)
	// a list of deployments on a application
	ApplicationDeployments(name string) ([]*DeploymentID, error)
	// scale a application
	ScaleApplicationInstances(name string, instances int, force bool) (*DeploymentID, error)
	// restart an application
	RestartApplication(name string, force bool) (*DeploymentID, error)
	// get a list of applications from marathon
	Applications(url.Values) (*Applications, error)
	// get an application by name
	Application(name string) (*Application, error)
	// get an application by options
	ApplicationBy(name string, opts *GetAppOpts) (*Application, error)
	// get an application by name and version
	ApplicationByVersion(name, version string) (*Application, error)
	// wait of application
	WaitOnApplication(name string, timeout time.Duration) error

	// get a list of tasks for a specific application
	Tasks(application string) (*Tasks, error)
	// get a list of all tasks
	AllTasks(opts *AllTasksOpts) (*Tasks, error)
	// get the endpoints for a service on a application
	TaskEndpoints(name string, port int, healthCheck bool) ([]string, error)
	// kill all the tasks for any application
	KillApplicationTasks(applicationID string, opts *KillApplicationTasksOpts) (*Tasks, error)
	// kill a single task
	KillTask(taskID string, opts *KillTaskOpts) (*Task, error)
	// kill the given array of tasks
	KillTasks(taskIDs []string, opts *KillTaskOpts) error

	// list all the groups in the system
	Groups() (*Groups, error)
	// retrieve a specific group from marathon
	Group(name string) (*Group, error)
	// list all groups in marathon by options
	GroupsBy(opts *GetGroupOpts) (*Groups, error)
	// retrieve a specific group from marathon by options
	GroupBy(name string, opts *GetGroupOpts) (*Group, error)
	// create a group deployment
	CreateGroup(group *Group) error
	// delete a group
	DeleteGroup(name string, force bool) (*DeploymentID, error)
	// update a groups
	UpdateGroup(id string, group *Group, force bool) (*DeploymentID, error)
	// check if a group exists
	HasGroup(name string) (bool, error)
	// wait for an group to be deployed
	WaitOnGroup(name string, timeout time.Duration) error

	// get a list of the deployments
	Deployments() ([]*Deployment, error)
	// delete a deployment
	DeleteDeployment(id string, force bool) (*DeploymentID, error)
	// check to see if a deployment exists
	HasDeployment(id string) (bool, error)
	// wait of a deployment to finish
	WaitOnDeployment(id string, timeout time.Duration) error

	// a list of current subscriptions
	Subscriptions() (*Subscriptions, error)
	// add a events listener
	AddEventsListener(filter int) (EventsChannel, error)
	// remove a events listener
	RemoveEventsListener(channel EventsChannel)
	// Subscribe a callback URL
	Subscribe(string) error
	// Unsubscribe a callback URL
	Unsubscribe(string) error

	// --- QUEUE ---
	// get marathon launch queue
	Queue() (*Queue, error)
	// resets task launch delay of the specific application
	DeleteQueueDelay(appID string) error

	// get the marathon url
	GetMarathonURL() string
	// ping the marathon
	Ping() (bool, error)
	// grab the marathon server info
	Info() (*Info, error)
	// retrieve the leader info
	Leader() (string, error)
	// cause the current leader to abdicate
	AbdicateLeader() (string, error)
}

Marathon is the interface to the marathon API

func NewClient 

func NewClient(config Config) (Marathon, error)

NewClient creates a new marathon client 

config:			the configuration to use

type Parameters 

type Parameters struct {
	Key   string `json:"key,omitempty"`
	Value string `json:"value,omitempty"`
}

Parameters is the parameters to pass to the docker client when creating the container

type Port added in v0.4.0 

type Port struct {
	Number   int    `json:"number,omitempty"`
	Name     string `json:"name,omitempty"`
	Protocol string `json:"protocol,omitempty"`
}

Port provides info about ports used by IP-per-task

type PortDefinition added in v0.2.0 

type PortDefinition struct {
	Port     *int               `json:"port,omitempty"`
	Protocol string             `json:"protocol,omitempty"`
	Name     string             `json:"name,omitempty"`
	Labels   *map[string]string `json:"labels,omitempty"`
}

PortDefinition is a definition of a port that should be considered part of a resource. Port definitions are necessary when you are using HOST networking and no port mappings are specified.

func (PortDefinition) AddLabel added in v0.2.0 

func (p PortDefinition) AddLabel(name, value string) PortDefinition

AddLabel adds a label to the PortDefinition 

name: the name of the label
value: value for this label

func (*PortDefinition) EmptyLabels added in v0.2.0 

func (p *PortDefinition) EmptyLabels() *PortDefinition

EmptyLabels explicitly empties the labels -- use this if you need to empty the labels of a PortDefinition that already has labels set (setting labels to nill will keep the current value)

func (PortDefinition) SetPort added in v0.2.0 

func (p PortDefinition) SetPort(port int) PortDefinition

SetPort sets the given port for the PortDefinition

type PortMapping 

type PortMapping struct {
	ContainerPort int                `json:"containerPort,omitempty"`
	HostPort      int                `json:"hostPort"`
	Labels        *map[string]string `json:"labels,omitempty"`
	Name          string             `json:"name,omitempty"`
	ServicePort   int                `json:"servicePort,omitempty"`
	Protocol      string             `json:"protocol,omitempty"`
}

PortMapping is the portmapping structure between container and mesos

func (*PortMapping) AddLabel added in v0.2.0 

func (p *PortMapping) AddLabel(name, value string) *PortMapping

AddLabel adds a label to a PortMapping 

name:	the name of the label
value: value for this label

func (*PortMapping) EmptyLabels added in v0.2.0 

func (p *PortMapping) EmptyLabels() *PortMapping

EmptyLabels explicitly empties the labels -- use this if you need to empty the labels of a port mapping that already has labels set (setting labels to nil will keep the current value)

type Queue added in v0.1.0 

type Queue struct {
	Items []Item `json:"queue"`
}

Queue is the definition of marathon queue

type Stats added in v0.6.0 

type Stats struct {
	Counts   map[string]int     `json:"counts"`
	LifeTime map[string]float64 `json:"lifeTime"`
}

Stats is a collection of aggregate statistics about an application's tasks

type StepActions added in v0.1.0 

type StepActions struct {
	Actions []struct {
		Action string `json:"action"` // 1.1.2 and after
		Type   string `json:"type"`   // 1.1.1 and before
		App    string `json:"app"`
	}
}

StepActions is a series of deployment steps

type Subscriptions 

type Subscriptions struct {
	CallbackURLs []string `json:"callbackUrls"`
}

Subscriptions is a collection to urls that marathon is implementing a callback on

type Task 

type Task struct {
	ID                 string               `json:"id"`
	AppID              string               `json:"appId"`
	Host               string               `json:"host"`
	HealthCheckResults []*HealthCheckResult `json:"healthCheckResults"`
	Ports              []int                `json:"ports"`
	ServicePorts       []int                `json:"servicePorts"`
	SlaveID            string               `json:"slaveId"`
	StagedAt           string               `json:"stagedAt"`
	StartedAt          string               `json:"startedAt"`
	State              string               `json:"state"`
	IPAddresses        []*IPAddress         `json:"ipAddresses"`
	Version            string               `json:"version"`
}

Task is the definition for a marathon task

func (*Task) HasHealthCheckResults 

func (r *Task) HasHealthCheckResults() bool

HasHealthCheckResults checks if the task has any health checks

type TaskStats added in v0.6.0 

type TaskStats struct {
	Stats Stats `json:"stats"`
}

TaskStats is a container for Stats

type Tasks 

type Tasks struct {
	Tasks []Task `json:"tasks"`
}

Tasks is a collection of marathon tasks

type UpdateGroupOpts added in v0.1.0 

type UpdateGroupOpts struct {
	Force bool `url:"force,omitempty"`
}

UpdateGroupOpts contains a payload for UpdateGroup method 

force:		overrides a currently running deployment.

type UpgradeStrategy 

type UpgradeStrategy struct {
	MinimumHealthCapacity *float64 `json:"minimumHealthCapacity,omitempty"`
	MaximumOverCapacity   *float64 `json:"maximumOverCapacity,omitempty"`
}

UpgradeStrategy is the upgrade strategy applied to an application.

func (UpgradeStrategy) SetMaximumOverCapacity added in v0.7.0 

func (us UpgradeStrategy) SetMaximumOverCapacity(cap float64) UpgradeStrategy

SetMaximumOverCapacity sets the maximum over capacity.

func (UpgradeStrategy) SetMinimumHealthCapacity added in v0.7.0 

func (us UpgradeStrategy) SetMinimumHealthCapacity(cap float64) UpgradeStrategy

SetMinimumHealthCapacity sets the minimum health capacity.

type VersionInfo 

type VersionInfo struct {
	LastScalingAt      string `json:"lastScalingAt,omitempty"`
	LastConfigChangeAt string `json:"lastConfigChangeAt,omitempty"`
}

VersionInfo is the application versioning details from marathon

type Volume 

type Volume struct {
	ContainerPath string          `json:"containerPath,omitempty"`
	HostPath      string          `json:"hostPath,omitempty"`
	External      *ExternalVolume `json:"external,omitempty"`
	Mode          string          `json:"mode,omitempty"`
}

Volume is the docker volume details associated to the container

func (*Volume) EmptyExternalVolume added in v0.4.0 

func (v *Volume) EmptyExternalVolume() *Volume

EmptyExternalVolume emptys the external volume definition

func (*Volume) SetExternalVolume added in v0.4.0 

func (v *Volume) SetExternalVolume(name, provider string) *ExternalVolume

SetExternalVolume define external elements for a volume 

name: the name of the volume
provider: the provider of the volume (e.g. dvdi)

Source Files

View all Source files

Directories

Path Synopsis
examples
applications
events_callback_transport
events_sse_transport
glog
groups
multiple_endpoints
queue
tasks

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