ccv3

package
v6.32.0+incompatible Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Sep 26, 2017 License: Apache-2.0 Imports: 17 Imported by: 316

Documentation

Overview

Package ccv3 represents a Cloud Controller V3 client.

These sets of packages are still under development/pre-pre-pre...alpha. Use at your own risk! Functionality and design may change without warning.

It is currently designed to support Cloud Controller API 3.0.0. However, it may include features and endpoints of later API versions.

For more information on the Cloud Controller API see https://apidocs.cloudfoundry.org/

Method Naming Conventions

The client takes a '<Action Name><Top Level Endpoint><Return Value>' approach to method names. If the <Top Level Endpoint> and <Return Value> are similar, they do not need to be repeated. If a GUID is required for the <Top Level Endpoint>, the pluralization is removed from said endpoint in the method name.

For Example: 

Method Name: GetApplication
Endpoint: /v3/applications/:guid
Action Name: Get
Top Level Endpoint: applications
Return Value: Application

Method Name: GetServiceInstances
Endpoint: /v3/service_instances
Action Name: Get
Top Level Endpoint: service_instances
Return Value: []ServiceInstance

Method Name: GetSpaceServiceInstances
Endpoint: /v3/spaces/:guid/service_instances
Action Name: Get
Top Level Endpoint: spaces
Return Value: []ServiceInstance

Method Name: CreateApplicationTask
Endpoint: /v3/apps/:application_guid/task
Action Name: Post
Top Level Endpoint: apps
Return Value: []Task

Use the following table to determine which HTTP Command equates to which Action Name: 

HTTP Command -> Action Name
POST -> Create
GET -> Get
PUT -> Update
DELETE -> Delete
PATCH -> Patch

Method Locations

Methods exist in the same file as their return type, regardless of which endpoint they use.

Error Handling

All error handling that requires parsing the error_code/code returned back from the Cloud Controller should be placed in the errorWrapper. Everything else can be handled in the individual operations. All parsed cloud controller errors should exist in errors.go, all generic HTTP errors should exist in the cloudcontroller's errors.go. Errors related to the individaul operation should exist at the top of that operation's file.

Index

Constants

View Source 
const (
	// GUIDFilter is a query paramater for listing objects by GUID.
	GUIDFilter = "guids"
	// NameFilter is a query paramater for listing objects by name.
	NameFilter = "names"
	// AppGUIDFilter is a query paramater for listing objects by app GUID.
	AppGUIDFilter = "app_guids"
	// OrganizationGUIDFilter is a query paramater for listing objects by Organization GUID.
	OrganizationGUIDFilter = "organization_guids"
	// SpaceGUIDFilter is a query paramater for listing objects by Space GUID.
	SpaceGUIDFilter = "space_guids"

	// OrderBy is a query paramater to specify how to order objects.
	OrderBy = "order_by"
	// NameOrder is value for a query paramater when ordering by name.
	NameOrder = "name"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type APIInfo 

type APIInfo struct {
	// Links is a list of top level Cloud Controller APIs.
	Links struct {
		// CCV3 is the link to the Cloud Controller V3 API
		CCV3 APILink `json:"cloud_controller_v3"`

		// Logging is the link to the Logging API
		Logging APILink `json:"logging"`

		NetworkPolicyV1 APILink `json:"network_policy_v1"`

		// UAA is the link to the UAA API
		UAA APILink `json:"uaa"`
	} `json:"links"`
}

APIInfo represents a GET response from the '/' endpoint of the cloud controller API.

func (APIInfo) CloudControllerAPIVersion 

func (info APIInfo) CloudControllerAPIVersion() string

CloudControllerAPIVersion returns the version for the CloudController.

func (APIInfo) Logging 

func (info APIInfo) Logging() string

Logging returns the HREF for Logging.

func (APIInfo) NetworkPolicyV1 

func (info APIInfo) NetworkPolicyV1() string

func (APIInfo) UAA 

func (info APIInfo) UAA() string

UAA returns the HREF for the UAA. 

type APILink struct {
	// HREF is the fully qualified URL for the link.
	HREF   string `json:"href"`
	Method string `json:"method"`

	// Meta contains additional metadata about the API.
	Meta struct {
		// Version of the API
		Version string `json:"version"`
	} `json:"meta"`
}

APILink represents a generic link from a response object. 

type APILinks map[string]APILink

APILinks is a directory of follow-up urls for the resource.

type AppLifecycle 

type AppLifecycle struct {
	Type AppLifecycleType `json:"type,omitempty"`
	Data AppLifecycleData `json:"data,omitempty"`
}

type AppLifecycleData 

type AppLifecycleData struct {
	Buildpacks []string `json:"buildpacks,omitempty"`
}

type AppLifecycleType 

type AppLifecycleType string
const (
	BuildpackAppLifecycleType AppLifecycleType = "buildpack"
	DockerAppLifecycleType    AppLifecycleType = "docker"
)

type Application 

type Application struct {
	Name          string        `json:"name,omitempty"`
	Relationships Relationships `json:"relationships,omitempty"`
	GUID          string        `json:"guid,omitempty"`
	State         string        `json:"state,omitempty"`
	Lifecycle     AppLifecycle  `json:"lifecycle,omitempty"`
}

Application represents a Cloud Controller V3 Application.

func (Application) MarshalJSON 

func (a Application) MarshalJSON() ([]byte, error)

type Build 

type Build struct {
	CreatedAt   string
	GUID        string
	Error       string
	PackageGUID string
	State       BuildState
	DropletGUID string
}

func (Build) MarshalJSON 

func (b Build) MarshalJSON() ([]byte, error)

func (*Build) UnmarshalJSON 

func (b *Build) UnmarshalJSON(data []byte) error

type BuildState 

type BuildState string
const (
	BuildStateFailed  BuildState = "FAILED"
	BuildStateStaged  BuildState = "STAGED"
	BuildStateStaging BuildState = "STAGING"
)

type Client 

type Client struct {
	APIInfo
	// contains filtered or unexported fields
}

Client can be used to talk to a Cloud Controller's V3 Endpoints.

func NewClient 

func NewClient(config Config) *Client

NewClient returns a new Client.

func (*Client) AssignSpaceToIsolationSegment 

func (client *Client) AssignSpaceToIsolationSegment(spaceGUID string, isolationSegmentGUID string) (Relationship, Warnings, error)

AssignSpaceToIsolationSegment assigns an isolation segment to a space and returns the relationship.

func (*Client) CreateApplication 

func (client *Client) CreateApplication(app Application) (Application, Warnings, error)

CreateApplication creates an application with the given settings

func (*Client) CreateApplicationProcessScale 

func (client *Client) CreateApplicationProcessScale(appGUID string, process Process) (Warnings, error)

CreateApplicationProcessScale updates process instances count, memory or disk

func (*Client) CreateApplicationTask 

func (client *Client) CreateApplicationTask(appGUID string, task Task) (Task, Warnings, error)

CreateApplicationTask runs a command in the Application environment associated with the provided Application GUID.

func (*Client) CreateBuild 

func (client *Client) CreateBuild(build Build) (Build, Warnings, error)

CreateBuild creates the given build, requires Package GUID to be set on the build.

func (*Client) CreateIsolationSegment 

func (client *Client) CreateIsolationSegment(isolationSegment IsolationSegment) (IsolationSegment, Warnings, error)

CreateIsolationSegment will create an Isolation Segment on the Cloud Controller. Note: This will not validate that the placement tag exists in the diego cluster.

func (*Client) CreatePackage 

func (client *Client) CreatePackage(pkg Package) (Package, Warnings, error)

CreatePackage creates a package with the given settings, Type and the ApplicationRelationship must be set.

func (*Client) DeleteApplication 

func (client *Client) DeleteApplication(appGUID string) (string, Warnings, error)

func (*Client) DeleteApplicationProcessInstance 

func (client *Client) DeleteApplicationProcessInstance(appGUID string, processType string, instanceIndex int) (Warnings, error)

func (*Client) DeleteIsolationSegment 

func (client *Client) DeleteIsolationSegment(guid string) (Warnings, error)

DeleteIsolationSegment removes an isolation segment from the cloud controller. Note: This will only remove it from the cloud controller database. It will not remove it from diego.

func (*Client) EntitleIsolationSegmentToOrganizations 

func (client *Client) EntitleIsolationSegmentToOrganizations(isolationSegmentGUID string, organizationGUIDs []string) (RelationshipList, Warnings, error)

EntitleIsolationSegmentToOrganizations will create a link between the isolation segment and the list of organizations provided.

func (*Client) GetApplicationDroplets 

func (client *Client) GetApplicationDroplets(appGUID string, query url.Values) ([]Droplet, Warnings, error)

GetApplicationDroplets returns the Droplets for a given app

func (*Client) GetApplicationEnvironmentVariables 

func (client *Client) GetApplicationEnvironmentVariables(appGUID string) (EnvironmentVariableGroups, Warnings, error)

GetApplicationEnvironmentVariables fetches all the environment variables on an application by groups.

func (*Client) GetApplicationProcessByType 

func (client *Client) GetApplicationProcessByType(appGUID string, processType string) (Process, Warnings, error)

GetApplicationProcessByType returns application process of specified type

func (*Client) GetApplicationProcesses 

func (client *Client) GetApplicationProcesses(appGUID string) ([]Process, Warnings, error)

GetApplicationProcesses lists processes for a given app

func (*Client) GetApplicationTasks 

func (client *Client) GetApplicationTasks(appGUID string, query url.Values) ([]Task, Warnings, error)

GetApplicationTasks returns a list of tasks associated with the provided application GUID. Results can be filtered by providing URL queries.

func (*Client) GetApplications 

func (client *Client) GetApplications(query url.Values) ([]Application, Warnings, error)

GetApplications lists applications with optional filters.

func (*Client) GetBuild 

func (client *Client) GetBuild(guid string) (Build, Warnings, error)

GetBuild gets the build with the given GUID.

func (*Client) GetDroplet 

func (client *Client) GetDroplet(dropletGUID string) (Droplet, Warnings, error)

func (*Client) GetIsolationSegment 

func (client *Client) GetIsolationSegment(guid string) (IsolationSegment, Warnings, error)

GetIsolationSegment returns back the requested isolation segment that matches the GUID.

func (*Client) GetIsolationSegmentOrganizationsByIsolationSegment 

func (client *Client) GetIsolationSegmentOrganizationsByIsolationSegment(isolationSegmentGUID string) ([]Organization, Warnings, error)

GetIsolationSegmentOrganizationsByIsolationSegment lists organizations entitled to an isolation segment

func (*Client) GetIsolationSegments 

func (client *Client) GetIsolationSegments(query url.Values) ([]IsolationSegment, Warnings, error)

GetIsolationSegments lists isolation segments with optional filters.

func (*Client) GetJob 

func (client *Client) GetJob(jobURL string) (Job, Warnings, error)

GetJob returns a job for the provided GUID.

func (*Client) GetOrganizationDefaultIsolationSegment 

func (client *Client) GetOrganizationDefaultIsolationSegment(orgGUID string) (Relationship, Warnings, error)

GetOrganizationDefaultIsolationSegment returns the relationship between an organization and it's default isolation segment.

func (*Client) GetOrganizations 

func (client *Client) GetOrganizations(query url.Values) ([]Organization, Warnings, error)

GetOrganizations lists organizations with optional filters.

func (*Client) GetPackage 

func (client *Client) GetPackage(packageGUID string) (Package, Warnings, error)

GetPackage returns the package with the given GUID.

func (*Client) GetPackages 

func (client *Client) GetPackages(query url.Values) ([]Package, Warnings, error)

GetPackages returns the list of packages.

func (*Client) GetProcessInstances 

func (client *Client) GetProcessInstances(processGUID string) ([]Instance, Warnings, error)

GetProcessInstances lists instance stats for a given process.

func (*Client) GetSpaceIsolationSegment 

func (client *Client) GetSpaceIsolationSegment(spaceGUID string) (Relationship, Warnings, error)

GetSpaceIsolationSegment returns the relationship between a space and it's isolation segment.

func (*Client) GetSpaces 

func (client *Client) GetSpaces(query url.Values) ([]Space, Warnings, error)

GetSpaces lists spaces with optional filters.

func (*Client) Info 

func (client *Client) Info() (APIInfo, ResourceLinks, Warnings, error)

Info returns endpoint and API information from /v3.

func (*Client) PatchApplicationProcessHealthCheck 

func (client *Client) PatchApplicationProcessHealthCheck(processGUID string, processHealthCheckType string, processHealthCheckEndpoint string) (Warnings, error)

PatchApplicationProcessHealthCheck updates application health check type

func (*Client) PatchApplicationUserProvidedEnvironmentVariables 

func (client *Client) PatchApplicationUserProvidedEnvironmentVariables(appGUID string, envVars EnvironmentVariables) (EnvironmentVariables, Warnings, error)

PatchApplicationUserProvidedEnvironmentVariables updates the user provided environment variables on an applicaiton. A restart is required for changes to take effect.

func (*Client) PatchOrganizationDefaultIsolationSegment 

func (client *Client) PatchOrganizationDefaultIsolationSegment(orgGUID string, isoSegGUID string) (Warnings, error)

PatchOrganizationDefaultIsolationSegment sets the default isolation segment for an organization on the controller. If isoSegGuid is empty it will reset the default isolation segment.

func (*Client) PollJob 

func (client *Client) PollJob(jobURL string) (Warnings, error)

PollJob will keep polling the given job until the job has terminated, an error is encountered, or config.OverallPollingTimeout is reached. In the last case, a JobTimeoutError is returned.

func (*Client) RevokeIsolationSegmentFromOrganization 

func (client *Client) RevokeIsolationSegmentFromOrganization(isolationSegmentGUID string, orgGUID string) (Warnings, error)

RevokeIsolationSegmentFromOrganization will delete the relationship between the isolation segment and the organization provided.

func (*Client) SetApplicationDroplet 

func (client *Client) SetApplicationDroplet(appGUID string, dropletGUID string) (Relationship, Warnings, error)

func (*Client) StartApplication 

func (client *Client) StartApplication(appGUID string) (Application, Warnings, error)

func (*Client) StopApplication 

func (client *Client) StopApplication(appGUID string) (Warnings, error)

func (*Client) TargetCF 

func (client *Client) TargetCF(settings TargetSettings) (Warnings, error)

TargetCF sets the client to use the Cloud Controller specified in the configuration. Any other configuration is also applied to the client.

func (*Client) UpdateApplication 

func (client *Client) UpdateApplication(app Application) (Application, Warnings, error)

UpdateApplication updates an application with the given settings

func (*Client) UpdateTask 

func (client *Client) UpdateTask(taskGUID string) (Task, Warnings, error)

UpdateTask cancels a task.

func (*Client) UploadPackage 

func (client *Client) UploadPackage(pkg Package, fileToUpload string) (Package, Warnings, error)

UploadPackage uploads a file to a given package's Upload resource. Note: fileToUpload is read entirely into memory prior to sending data to CC.

func (*Client) WrapConnection 

func (client *Client) WrapConnection(wrapper ConnectionWrapper)

WrapConnection wraps the current Client connection in the wrapper.

type Config 

type Config struct {
	// AppName is the name of the application/process using the client.
	AppName string

	// AppVersion is the version of the application/process using the client.
	AppVersion string

	// JobPollingTimeout is the maximum amount of time a job polls for.
	JobPollingTimeout time.Duration

	// JobPollingInterval is the wait time between job polls.
	JobPollingInterval time.Duration

	// Wrappers that apply to the client connection.
	Wrappers []ConnectionWrapper
}

Config allows the Client to be configured

type ConnectionWrapper 

type ConnectionWrapper interface {
	cloudcontroller.Connection
	Wrap(innerconnection cloudcontroller.Connection) cloudcontroller.Connection
}

ConnectionWrapper can wrap a given connection allowing the wrapper to modify all requests going in and out of the given connection.

type Droplet 

type Droplet struct {
	GUID       string             `json:"guid"`
	State      DropletState       `json:"state"`
	CreatedAt  string             `json:"created_at"`
	Stack      string             `json:"stack,omitempty"`
	Buildpacks []DropletBuildpack `json:"buildpacks,omitempty"`
	Image      string             `json:"image"`
}

type DropletBuildpack 

type DropletBuildpack struct {
	Name         string `json:"name"`
	DetectOutput string `json:"detect_output"`
}

type DropletRelationship 

type DropletRelationship struct {
	Relationship Relationship `json:"data"`
	Links        APILinks     `json:"links"`
}

DropletRelationship represents the relationship between a V3 Droplet and its V3 Application

type DropletState 

type DropletState string
const (
	DropletStateStaged  DropletState = "STAGED"
	DropletStateFailed  DropletState = "FAILED"
	DropletStateCopying DropletState = "COPYING"
	DropletStateExpired DropletState = "EXPIRED"
)

type EnvironmentVariableGroups 

type EnvironmentVariableGroups struct {
	SystemProvided      map[string]interface{} `json:"system_env_json"`
	ApplicationProvided map[string]interface{} `json:"application_env_json"`
	UserProvided        map[string]interface{} `json:"environment_variables"`
	RunningGroup        map[string]interface{} `json:"running_env_json"`
	StagingGroup        map[string]interface{} `json:"staging_env_json"`
}

EnvironmentVariableGroups represents all environment variables on an application

type EnvironmentVariables 

type EnvironmentVariables struct {
	Variables map[string]types.FilteredString `json:"var"`
}

EnvironmentVariables represents the environment variables that can be set on application by user

type ErrorDetails 

type ErrorDetails struct {
	Detail string `json:"detail"`
	Title  string `json:"title"`
	Code   int    `json:"code"`
}

type Instance 

type Instance struct {
	Index       int
	State       string
	Uptime      int
	CPU         float64
	MemoryUsage uint64
	MemoryQuota uint64
	DiskUsage   uint64
	DiskQuota   uint64
}

func (*Instance) UnmarshalJSON 

func (instance *Instance) UnmarshalJSON(data []byte) error

UnmarshalJSON helps unmarshal a V3 Cloud Controller Instance response.

type IsolationSegment 

type IsolationSegment struct {
	Name string `json:"name"`
	GUID string `json:"guid,omitempty"`
}

IsolationSegment represents a Cloud Controller Isolation Segment.

type Job 

type Job struct {
	Errors []ErrorDetails `json:"errors"`
	GUID   string         `json:"guid"`
	State  JobState       `json:"state"`
}

Job represents a Cloud Controller Job.

func (Job) Complete 

func (job Job) Complete() bool

Complete returns true when the job has completed successfully.

func (Job) Failed 

func (job Job) Failed() bool

Failed returns true when the job has completed with an error/failure.

type JobState 

type JobState string

JobState is the current state of a job. 

const (
	// JobStateFailed is when the job is no longer running due to a failure.
	JobStateFailed JobState = "FAILED"

	// JobStateFinished is when the job is no longer and it was successful.
	JobStateComplete JobState = "COMPLETE"

	// JobStateQueued is when the job is waiting to be run.
	JobStateProcessing JobState = "PROCESSING"
)

type Organization 

type Organization struct {
	Name string `json:"name"`
	GUID string `json:"guid"`
}

Organization represents a Cloud Controller V3 Organization.

type Package 

type Package struct {
	GUID           string
	CreatedAt      string
	Links          APILinks
	Relationships  Relationships
	State          PackageState
	Type           PackageType
	DockerImage    string
	DockerUsername string
	DockerPassword string
}

func (Package) MarshalJSON 

func (p Package) MarshalJSON() ([]byte, error)

func (*Package) UnmarshalJSON 

func (p *Package) UnmarshalJSON(data []byte) error

type PackageState 

type PackageState string
const (
	PackageStateProcessingUpload PackageState = "PROCESSING_UPLOAD"
	PackageStateReady            PackageState = "READY"
	PackageStateFailed           PackageState = "FAILED"
	PackageStateAwaitingUpload   PackageState = "AWAITING_UPLOAD"
	PackageStateCopying          PackageState = "COPYING"
	PackageStateExpired          PackageState = "EXPIRED"
)

type PackageType 

type PackageType string
const (
	PackageTypeBits   PackageType = "bits"
	PackageTypeDocker PackageType = "docker"
)

type PaginatedResources 

type PaginatedResources struct {
	Pagination struct {
		Next struct {
			HREF string `json:"href"`
		} `json:"next"`
	} `json:"pagination"`
	ResourcesBytes json.RawMessage `json:"resources"`
	// contains filtered or unexported fields
}

PaginatedResources represents a page of resources returned by the Cloud Controller.

func NewPaginatedResources 

func NewPaginatedResources(exampleResource interface{}) *PaginatedResources

NewPaginatedResources returns a new PaginatedResources struct with the given resource type.

func (PaginatedResources) NextPage 

func (pr PaginatedResources) NextPage() string

NextPage returns the HREF of the next page of results.

func (PaginatedResources) Resources 

func (pr PaginatedResources) Resources() ([]interface{}, error)

Resources unmarshals JSON representing a page of resources and returns a slice of the given resource type.

type Process 

type Process struct {
	GUID        string             `json:"guid"`
	Type        string             `json:"type"`
	HealthCheck ProcessHealthCheck `json:"health_check"`
	Instances   types.NullInt      `json:"instances"`
	MemoryInMB  types.NullUint64   `json:"memory_in_mb"`
	DiskInMB    types.NullUint64   `json:"disk_in_mb"`
}

func (Process) MarshalJSON 

func (p Process) MarshalJSON() ([]byte, error)

type ProcessHealthCheck 

type ProcessHealthCheck struct {
	Type string                 `json:"type"`
	Data ProcessHealthCheckData `json:"data"`
}

type ProcessHealthCheckData 

type ProcessHealthCheckData struct {
	Endpoint string `json:"endpoint"`
}

type Relationship 

type Relationship struct {
	GUID string
}

Relationship represents a one to one relationship. An empty GUID will be marshaled as `null`.

func (Relationship) MarshalJSON 

func (r Relationship) MarshalJSON() ([]byte, error)

func (*Relationship) UnmarshalJSON 

func (r *Relationship) UnmarshalJSON(data []byte) error

type RelationshipList 

type RelationshipList struct {
	GUIDs []string
}

RelationshipList represents a one to many relationship.

func (RelationshipList) MarshalJSON 

func (r RelationshipList) MarshalJSON() ([]byte, error)

func (*RelationshipList) UnmarshalJSON 

func (r *RelationshipList) UnmarshalJSON(data []byte) error

type RelationshipType 

type RelationshipType string
const (
	ApplicationRelationship RelationshipType = "app"
	SpaceRelationship       RelationshipType = "space"
)

type Relationships 

type Relationships map[RelationshipType]Relationship

Relationships is a map of RelationshipTypes to Relationship. 

type ResourceLinks map[string]APILink

ResourceLinks represents the information returned back from /v3.

func (ResourceLinks) UnmarshalJSON 

func (resources ResourceLinks) UnmarshalJSON(data []byte) error

UnmarshalJSON helps unmarshal a Cloud Controller /v3 response.

type Space 

type Space struct {
	Name string `json:"name"`
	GUID string `json:"guid"`
}

Space represents a Cloud Controller V3 Space.

type TargetSettings 

type TargetSettings struct {
	// DialTimeout is the DNS timeout used to make all requests to the Cloud
	// Controller.
	DialTimeout time.Duration

	// SkipSSLValidation controls whether a client verifies the server's
	// certificate chain and host name. If SkipSSLValidation is true, TLS accepts
	// any certificate presented by the server and any host name in that
	// certificate for *all* client requests going forward.
	//
	// In this mode, TLS is susceptible to man-in-the-middle attacks. This should
	// be used only for testing.
	SkipSSLValidation bool

	// URL is a fully qualified URL to the Cloud Controller API.
	URL string
}

TargetSettings represents configuration for establishing a connection to the Cloud Controller server.

type Task 

type Task struct {
	GUID       string `json:"guid,omitempty"`
	SequenceID int    `json:"sequence_id,omitempty"`
	Name       string `json:"name,omitempty"`
	Command    string `json:"command"`
	State      string `json:"state,omitempty"`
	CreatedAt  string `json:"created_at,omitempty"`
	MemoryInMB uint64 `json:"memory_in_mb,omitempty"`
	DiskInMB   uint64 `json:"disk_in_mb,omitempty"`
}

Task represents a Cloud Controller V3 Task.

type Warnings 

type Warnings []string

Warnings are a collection of warnings that the Cloud Controller can return back from an API request.

Source Files

View all Source files

Directories

Path Synopsis
Code generated by counterfeiter.
 Code generated by counterfeiter.
Package constant contains types and constants used by the ccv3 package.
 Package constant contains types and constants used by the ccv3 package.

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.