host

package
v0.0.0-...-418c65a Latest Latest
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 Go to latest Published: Sep 26, 2019 License: Apache-2.0 Imports: 31 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	MaxLCTInterval = 5 * time.Minute

	// Potential init systems supported by a Linux host.
	InitSystemSystemd = "systemd"
	InitSystemSysV    = "sysv"
	InitSystemUpstart = "upstart"
)
View Source 
const (
	CurlDefaultNumRetries = 10
	CurlDefaultMaxSecs    = 100
)

Constants representing default curl retry arguments.

View Source 
const (
	// Collection is the name of the MongoDB collection that stores hosts.
	Collection = "hosts"
)

Variables

View Source 
var (
	IdKey                        = bsonutil.MustHaveTag(Host{}, "Id")
	DNSKey                       = bsonutil.MustHaveTag(Host{}, "Host")
	SecretKey                    = bsonutil.MustHaveTag(Host{}, "Secret")
	UserKey                      = bsonutil.MustHaveTag(Host{}, "User")
	TagKey                       = bsonutil.MustHaveTag(Host{}, "Tag")
	DistroKey                    = bsonutil.MustHaveTag(Host{}, "Distro")
	ProviderKey                  = bsonutil.MustHaveTag(Host{}, "Provider")
	IPKey                        = bsonutil.MustHaveTag(Host{}, "IP")
	ProvisionedKey               = bsonutil.MustHaveTag(Host{}, "Provisioned")
	ProvisionTimeKey             = bsonutil.MustHaveTag(Host{}, "ProvisionTime")
	ExtIdKey                     = bsonutil.MustHaveTag(Host{}, "ExternalIdentifier")
	RunningTaskKey               = bsonutil.MustHaveTag(Host{}, "RunningTask")
	RunningTaskGroupKey          = bsonutil.MustHaveTag(Host{}, "RunningTaskGroup")
	RunningTaskBuildVariantKey   = bsonutil.MustHaveTag(Host{}, "RunningTaskBuildVariant")
	RunningTaskVersionKey        = bsonutil.MustHaveTag(Host{}, "RunningTaskVersion")
	RunningTaskProjectKey        = bsonutil.MustHaveTag(Host{}, "RunningTaskProject")
	TaskDispatchTimeKey          = bsonutil.MustHaveTag(Host{}, "TaskDispatchTime")
	CreateTimeKey                = bsonutil.MustHaveTag(Host{}, "CreationTime")
	ExpirationTimeKey            = bsonutil.MustHaveTag(Host{}, "ExpirationTime")
	TerminationTimeKey           = bsonutil.MustHaveTag(Host{}, "TerminationTime")
	LTCTimeKey                   = bsonutil.MustHaveTag(Host{}, "LastTaskCompletedTime")
	LTCTaskKey                   = bsonutil.MustHaveTag(Host{}, "LastTask")
	LTCGroupKey                  = bsonutil.MustHaveTag(Host{}, "LastGroup")
	LTCBVKey                     = bsonutil.MustHaveTag(Host{}, "LastBuildVariant")
	LTCVersionKey                = bsonutil.MustHaveTag(Host{}, "LastVersion")
	LTCProjectKey                = bsonutil.MustHaveTag(Host{}, "LastProject")
	StatusKey                    = bsonutil.MustHaveTag(Host{}, "Status")
	AgentRevisionKey             = bsonutil.MustHaveTag(Host{}, "AgentRevision")
	NeedsNewAgentKey             = bsonutil.MustHaveTag(Host{}, "NeedsNewAgent")
	NeedsNewAgentMonitorKey      = bsonutil.MustHaveTag(Host{}, "NeedsNewAgentMonitor")
	JasperCredentialsIDKey       = bsonutil.MustHaveTag(Host{}, "JasperCredentialsID")
	JasperDeployAttemptsKey      = bsonutil.MustHaveTag(Host{}, "JasperDeployAttempts")
	StartedByKey                 = bsonutil.MustHaveTag(Host{}, "StartedBy")
	InstanceTypeKey              = bsonutil.MustHaveTag(Host{}, "InstanceType")
	VolumeSizeKey                = bsonutil.MustHaveTag(Host{}, "VolumeTotalSize")
	VolumeIDsKey                 = bsonutil.MustHaveTag(Host{}, "VolumeIDs")
	NotificationsKey             = bsonutil.MustHaveTag(Host{}, "Notifications")
	LastCommunicationTimeKey     = bsonutil.MustHaveTag(Host{}, "LastCommunicationTime")
	UserHostKey                  = bsonutil.MustHaveTag(Host{}, "UserHost")
	ZoneKey                      = bsonutil.MustHaveTag(Host{}, "Zone")
	ProjectKey                   = bsonutil.MustHaveTag(Host{}, "Project")
	ProvisionOptionsKey          = bsonutil.MustHaveTag(Host{}, "ProvisionOptions")
	ProvisionAttemptsKey         = bsonutil.MustHaveTag(Host{}, "ProvisionAttempts")
	TaskCountKey                 = bsonutil.MustHaveTag(Host{}, "TaskCount")
	StartTimeKey                 = bsonutil.MustHaveTag(Host{}, "StartTime")
	AgentStartTimeKey            = bsonutil.MustHaveTag(Host{}, "AgentStartTime")
	ComputeCostPerHourKey        = bsonutil.MustHaveTag(Host{}, "ComputeCostPerHour")
	TotalCostKey                 = bsonutil.MustHaveTag(Host{}, "TotalCost")
	TotalIdleTimeKey             = bsonutil.MustHaveTag(Host{}, "TotalIdleTime")
	HasContainersKey             = bsonutil.MustHaveTag(Host{}, "HasContainers")
	ParentIDKey                  = bsonutil.MustHaveTag(Host{}, "ParentID")
	ContainerImagesKey           = bsonutil.MustHaveTag(Host{}, "ContainerImages")
	ContainerBuildAttempt        = bsonutil.MustHaveTag(Host{}, "ContainerBuildAttempt")
	LastContainerFinishTimeKey   = bsonutil.MustHaveTag(Host{}, "LastContainerFinishTime")
	SpawnOptionsKey              = bsonutil.MustHaveTag(Host{}, "SpawnOptions")
	ContainerPoolSettingsKey     = bsonutil.MustHaveTag(Host{}, "ContainerPoolSettings")
	RunningTeardownForTaskKey    = bsonutil.MustHaveTag(Host{}, "RunningTeardownForTask")
	RunningTeardownSinceKey      = bsonutil.MustHaveTag(Host{}, "RunningTeardownSince")
	InstanceTagsKey              = bsonutil.MustHaveTag(Host{}, "InstanceTags")
	SpawnOptionsTaskIDKey        = bsonutil.MustHaveTag(SpawnOptions{}, "TaskID")
	SpawnOptionsBuildIDKey       = bsonutil.MustHaveTag(SpawnOptions{}, "BuildID")
	SpawnOptionsTimeoutKey       = bsonutil.MustHaveTag(SpawnOptions{}, "TimeoutTeardown")
	SpawnOptionsSpawnedByTaskKey = bsonutil.MustHaveTag(SpawnOptions{}, "SpawnedByTask")
)
View Source 
var (
	HostsByDistroDistroIDKey          = bsonutil.MustHaveTag(IdleHostsByDistroID{}, "DistroID")
	HostsByDistroIdleHostsKey         = bsonutil.MustHaveTag(IdleHostsByDistroID{}, "IdleHosts")
	HostsByDistroRunningHostsCountKey = bsonutil.MustHaveTag(IdleHostsByDistroID{}, "RunningHostsCount")
)
View Source 
var All = db.Query(struct{}{})

All is a query that returns all hosts

View Source 
var AllStatic = db.Query(
	bson.M{
		ProviderKey: evergreen.HostTypeStatic,
	})
View Source 
var IsIdle = db.Query(
	bson.M{
		RunningTaskKey: bson.M{"$exists": false},
		StatusKey:      evergreen.HostRunning,
		StartedByKey:   evergreen.User,
	},
)

IsIdle is a query that returns all running Evergreen hosts with no task.

View Source 
var IsRunningAndSpawned = db.Query(
	bson.M{
		StartedByKey: bson.M{"$ne": evergreen.User},
		StatusKey:    bson.M{"$ne": evergreen.HostTerminated},
	},
)

IsRunningAndSpawned is a query that returns all running hosts spawned by an Evergreen user.

View Source 
var IsRunningTask = db.Query(
	bson.M{
		RunningTaskKey: bson.M{"$exists": true},
		StatusKey: bson.M{
			"$ne": evergreen.HostTerminated,
		},
	},
)

IsRunningTask is a query that returns all running hosts with a running task

View Source 
var IsTerminated = db.Query(
	bson.M{
		RunningTaskKey: bson.M{"$exists": false},
		StatusKey:      evergreen.HostTerminated},
)

IsTerminated is a query that returns all hosts that are terminated (and not running a task).

View Source 
var IsUninitialized = db.Query(
	bson.M{StatusKey: evergreen.HostUninitialized},
)

IsUninitialized is a query that returns all unstarted + uninitialized Evergreen hosts.

Functions

func AgentLastCommunicationTimeElapsed 

func AgentLastCommunicationTimeElapsed(currentTime time.Time) bson.M

AgentLastCommunicationTimeElapsed finds legacy hosts which do not have an agent or whose agents have not communicated recently.

func AgentMonitorLastCommunicationTimeElapsed 

func AgentMonitorLastCommunicationTimeElapsed(currentTime time.Time) bson.M

AgentMonitorLastCommunicationTimeElapsed finds hosts which do not have an agent monitor or which should have an agent monitor but their agent has not communicated recently.

func ByDistroIDRunning 

func ByDistroIDRunning(distroID string) db.Q

func ByDistroId 

func ByDistroId(distroId string) db.Q

ByDistroId produces a query that returns all working hosts (not terminated and not quarantined) of the given distro.

func ByDistroIdDoc 

func ByDistroIdDoc(distroId string) bson.M

func ByDynamicWithinTime 

func ByDynamicWithinTime(startTime, endTime time.Time) db.Q

ByDynamicWithinTime is a query that returns all dynamic hosts running between a certain time and another time.

func ByExpiringBetween 

func ByExpiringBetween(lowerBound time.Time, upperBound time.Time) db.Q

ByExpiringBetween produces a query that returns any user-spawned hosts that will expire between the specified times.

func ById 

func ById(id string) db.Q

ById produces a query that returns a host with the given id.

func ByIds 

func ByIds(ids []string) db.Q

ByIds produces a query that returns all hosts in the given list of ids.

func ByNotMonitoredSince 

func ByNotMonitoredSince(threshold time.Time) db.Q

ByNotMonitoredSince produces a query that returns all hosts whose last reachability check was before the specified threshold, filtering out user-spawned hosts and hosts currently running tasks.

func ByRunningTaskId 

func ByRunningTaskId(taskId string) db.Q

ByRunningTaskId returns a host running the task with the given id.

func ByUnprovisionedSince 

func ByUnprovisionedSince(threshold time.Time) db.Q

ByUnprovisionedSince produces a query that returns all hosts Evergreen never finished setting up that were created before the given time.

func ByUserWithRunningStatus 

func ByUserWithRunningStatus(user string) db.Q

ByUserWithRunningStatus produces a query that returns all running hosts for the given user id.

func ByUserWithUnterminatedStatus 

func ByUserWithUnterminatedStatus(user string) db.Q

ByUserWithUnterminatedStatus produces a query that returns all running hosts for the given user id.

func ChmodCommandWithSudo 

func ChmodCommandWithSudo(ctx context.Context, script string, sudo bool) *exec.Cmd

func Count 

func Count(query db.Q) (int, error)

Count returns the number of hosts that satisfy the given query.

func CountRunningHosts 

func CountRunningHosts(distroID string) (int, error)

func DecommissionHostsWithDistroId 

func DecommissionHostsWithDistroId(distroId string) error

func FindStaleRunningTasks 

func FindStaleRunningTasks(cutoff time.Duration) ([]task.Task, error)

StateRunningTasks returns tasks documents that are currently run by a host and stale

func InsertMany 

func InsertMany(hosts []Host) error

func IsLive 

func IsLive() bson.M

IsLive is a query that returns all working hosts started by Evergreen

func MarkInactiveStaticHosts 

func MarkInactiveStaticHosts(activeStaticHosts []string, distroID string) error

DecommissionInactiveStaticHosts marks static hosts in the database as terminated provided their ids aren't contained in the passed in activeStaticHosts slice. This is called in the scheduler, and marks any static host in the system that was removed from the distro as "terminated".

Previously this oepration marked these hosts as "decommissioned," which is not a state that makes sense for static hosts.

If the distro is the empty string ("") then this operation affects all distros.

func NeedsNewAgentFlagSet 

func NeedsNewAgentFlagSet() db.Q

NeedsNewAgentFlagSet returns legacy hosts with NeedsNewAgent set to true.

func NumHostsByTaskSpec 

func NumHostsByTaskSpec(group, buildVariant, project, version string) (int, error)

ByTaskSpec returns a query that finds all running hosts that are running a task with the given group, buildvariant, project, and version.

func Provisioning 

func Provisioning() db.Q

Provisioning returns a query used by the hostinit process to determine hosts that are started according to the cloud provider, but have not yet been provisioned by Evergreen.

func RemoveStaleInitializing 

func RemoveStaleInitializing(distroID string) error

Removes host intents that have been been uninitialized for more than 3 minutes or spawning (but not started) for more than 15 minutes for the specified distro.

If you pass the empty string as a distroID, it will remove stale host intents for *all* distros.

func ShCommandWithSudo 

func ShCommandWithSudo(ctx context.Context, script string, sudo bool) *exec.Cmd

func StaleRunningTaskIDs 

func StaleRunningTaskIDs(staleness time.Duration) ([]task.Task, error)

StaleRunningTaskIDs finds any running tasks whose last heartbeat was at least the specified threshold ago and whose host thinks it's still running that task. Projects out everything but the ID and execution

func Starting 

func Starting() db.Q

Starting returns a query that finds hosts that we do not yet know to be running.

func TearDownCommandOverSSH 

func TearDownCommandOverSSH() string

TearDownCommandOverSSH returns a command for running a teardown script on a host. This command runs if there is a problem running host teardown with the agent and is intended only as a backstop if multiple agent deploys interfere with one another (https://jira.mongodb.org/browse/EVG-5972). It likely can be removed after work to improve amboy job locking or the SSH dependency.

func UpdateAll 

func UpdateAll(query interface{}, update interface{}) error

UpdateAll updates all hosts.

func UpdateOne 

func UpdateOne(query interface{}, update interface{}) error

UpdateOne updates one host.

func UpsertOne 

func UpsertOne(query interface{}, update interface{}) (*adb.ChangeInfo, error)

UpsertOne upserts a host.

Types

type ContainersOnParents 

type ContainersOnParents struct {
	ParentHost    Host
	NumContainers int
}

func GetNumContainersOnParents 

func GetNumContainersOnParents(d distro.Distro) ([]ContainersOnParents, error)

getNumContainersOnParents returns a slice of uphost parents and their respective number of current containers currently running in order of longest expected finish time

type CreateOptions 

type CreateOptions struct {
	ProvisionOptions   *ProvisionOptions
	ExpirationDuration *time.Duration
	UserName           string
	UserHost           bool

	HasContainers         bool
	ParentID              string
	ContainerPoolSettings *evergreen.ContainerPool
	SpawnOptions          SpawnOptions
	DockerOptions         DockerOptions
	InstanceTags          []Tag
}

CreateOptions is a struct of options that are commonly passed around when creating a new cloud host.

type DistroStats 

type DistroStats []StatsByDistro

func GetStatsByDistro 

func GetStatsByDistro() (DistroStats, error)

GetStatsByDistro returns counts of up hosts broken down by distro

func (DistroStats) CountMap 

func (d DistroStats) CountMap() map[string]int

func (DistroStats) MaxHostsExceeded 

func (d DistroStats) MaxHostsExceeded() map[string]int

func (DistroStats) TasksMap 

func (d DistroStats) TasksMap() map[string]int

type DockerOptions 

type DockerOptions struct {
	// Optional parameters to define a registry name and authentication
	RegistryName     string `mapstructure:"docker_registry_name" bson:"docker_registry_name,omitempty" json:"docker_registry_name,omitempty"`
	RegistryUsername string `mapstructure:"docker_registry_user" bson:"docker_registry_user,omitempty" json:"docker_registry_user,omitempty"`
	RegistryPassword string `mapstructure:"docker_registry_pw" bson:"docker_registry_pw,omitempty" json:"docker_registry_pw,omitempty"`

	// Image is required and specifies the image for the container.
	// This can be a URL or an image base, to be combined with a registry.
	Image string `mapstructure:"image_url" bson:"image_url,omitempty" json:"image_url,omitempty"`
	// Method is either "pull" or "import" and defines how to retrieve the image.
	Method string `mapstructure:"build_type" bson:"build_type,omitempty" json:"build_type,omitempty"`
	// Command is required and is the command to run on the docker.
	Command string `mapstructure:"command" bson:"command,omitempty" json:"command,omitempty"`
	// If the container is created from host create, we want to skip building the image with agent
	SkipImageBuild bool `mapstructure:"skip_build" bson:"skip_build,omitempty" json:"skip_build,omitempty"`
}

DockerOptions contains options for starting a container

type FinishTime 

type FinishTime struct {
	Id         string    `bson:"_id"`
	FinishTime time.Time `bson:"finish_time"`
}

FinishTime is a struct for storing pairs of host IDs and last container finish times

func AggregateLastContainerFinishTimes 

func AggregateLastContainerFinishTimes() ([]FinishTime, error)

AggregateLastContainerFinishTimes returns the latest finish time for each host with containers

type Host 

type Host struct {
	Id       string        `bson:"_id" json:"id"`
	Host     string        `bson:"host_id" json:"host"`
	User     string        `bson:"user" json:"user"`
	Secret   string        `bson:"secret" json:"secret"`
	Tag      string        `bson:"tag" json:"tag"`
	Distro   distro.Distro `bson:"distro" json:"distro"`
	Provider string        `bson:"host_type" json:"host_type"`
	IP       string        `bson:"ip_address" json:"ip_address"`

	// secondary (external) identifier for the host
	ExternalIdentifier string `bson:"ext_identifier" json:"ext_identifier"`

	// physical location of host
	Project string `bson:"project" json:"project"`
	Zone    string `bson:"zone" json:"zone"`

	// True if the app server has done all necessary host setup work (although
	// the host may need to do additional provisioning before it is running).
	Provisioned       bool      `bson:"provisioned" json:"provisioned"`
	ProvisionAttempts int       `bson:"priv_attempts" json:"provision_attempts"`
	ProvisionTime     time.Time `bson:"prov_time,omitempty" json:"prov_time,omitempty"`

	ProvisionOptions *ProvisionOptions `bson:"provision_options,omitempty" json:"provision_options,omitempty"`

	// the task that is currently running on the host
	RunningTask             string `bson:"running_task,omitempty" json:"running_task,omitempty"`
	RunningTaskGroup        string `bson:"running_task_group,omitempty" json:"running_task_group,omitempty"`
	RunningTaskBuildVariant string `bson:"running_task_bv,omitempty" json:"running_task_bv,omitempty"`
	RunningTaskVersion      string `bson:"running_task_version,omitempty" json:"running_task_version,omitempty"`
	RunningTaskProject      string `bson:"running_task_project,omitempty" json:"running_task_project,omitempty"`

	// the task the most recently finished running on the host
	LastTask               string    `bson:"last_task" json:"last_task"`
	LastGroup              string    `bson:"last_group,omitempty" json:"last_group,omitempty"`
	LastBuildVariant       string    `bson:"last_bv,omitempty" json:"last_bv,omitempty"`
	LastVersion            string    `bson:"last_version,omitempty" json:"last_version,omitempty"`
	LastProject            string    `bson:"last_project,omitempty" json:"last_project,omitempty"`
	RunningTeardownForTask string    `bson:"running_teardown,omitempty" json:"running_teardown,omitempty"`
	RunningTeardownSince   time.Time `bson:"running_teardown_since,omitempty" json:"running_teardown_since,omitempty"`

	// the full task struct that is running on the host (only populated by certain aggregations)
	RunningTaskFull *task.Task `bson:"task_full,omitempty" json:"task_full,omitempty"`

	// duplicate of the DispatchTime field in the above task
	TaskDispatchTime time.Time `bson:"task_dispatch_time" json:"task_dispatch_time"`
	ExpirationTime   time.Time `bson:"expiration_time,omitempty" json:"expiration_time"`

	// creation is when the host document was inserted to the DB, start is when it was started on the cloud provider
	CreationTime time.Time `bson:"creation_time" json:"creation_time"`
	StartTime    time.Time `bson:"start_time" json:"start_time"`
	// AgentStartTime is when the agent first initiates contact with the app
	// server.
	AgentStartTime  time.Time `bson:"agent_start_time" json:"agent_start_time"`
	TerminationTime time.Time `bson:"termination_time" json:"termination_time"`
	TaskCount       int       `bson:"task_count" json:"task_count"`

	LastTaskCompletedTime time.Time `bson:"last_task_completed_time" json:"last_task_completed_time"`
	LastCommunicationTime time.Time `bson:"last_communication" json:"last_communication"`

	Status    string `bson:"status" json:"status"`
	StartedBy string `bson:"started_by" json:"started_by"`
	// True if this host was created manually by a user (i.e. with spawnhost)
	UserHost             bool   `bson:"user_host" json:"user_host"`
	AgentRevision        string `bson:"agent_revision" json:"agent_revision"`
	NeedsNewAgent        bool   `bson:"needs_agent" json:"needs_agent"`
	NeedsNewAgentMonitor bool   `bson:"needs_agent_monitor" json:"needs_agent_monitor"`

	// JasperCredentialsID is used to match hosts to their Jasper credentials
	// for non-legacy hosts.
	JasperCredentialsID string `bson:"jasper_credentials_id" json:"jasper_credentials_id"`

	// JasperDeployAttempts is the current number of times the app server has
	// attempted to deploy a new Jasper service to the host.
	JasperDeployAttempts int `bson:"jasper_deploy_attempts" json:"jasper_deploy_attempts"`

	// for ec2 dynamic hosts, the instance type requested
	InstanceType string `bson:"instance_type" json:"instance_type,omitempty"`
	// for ec2 dynamic hosts, the total size of the volumes requested, in GiB
	VolumeTotalSize int64 `bson:"volume_total_size" json:"volume_total_size,omitempty"`

	VolumeIDs []string `bson:"volume_ids,omitempty" json:"volume_ids,omitempty"`

	// stores information on expiration notifications for spawn hosts
	Notifications map[string]bool `bson:"notifications,omitempty" json:"notifications,omitempty"`

	// ComputeCostPerHour is the compute (not storage) cost of one host for one hour. Cloud
	// managers can but are not required to cache this price.
	ComputeCostPerHour float64 `bson:"compute_cost_per_hour,omitempty" json:"compute_cost_per_hour,omitempty"`

	// incremented by task start and end stats collectors and
	// should reflect hosts total costs. Only populated for build-hosts
	// where host providers report costs.
	TotalCost float64 `bson:"total_cost,omitempty" json:"total_cost,omitempty"`

	// accrues the value of idle time.
	TotalIdleTime time.Duration `bson:"total_idle_time,omitempty" json:"total_idle_time,omitempty" yaml:"total_idle_time,omitempty"`

	// managed containers require different information based on host type
	// True if this host is a parent of containers
	HasContainers bool `bson:"has_containers,omitempty" json:"has_containers,omitempty"`
	// stores URLs of container images already downloaded on a parent
	ContainerImages map[string]bool `bson:"container_images,omitempty" json:"container_images,omitempty"`
	// stores the ID of the host a container is on
	ParentID string `bson:"parent_id,omitempty" json:"parent_id,omitempty"`
	// stores last expected finish time among all containers on the host
	LastContainerFinishTime time.Time `bson:"last_container_finish_time,omitempty" json:"last_container_finish_time,omitempty"`
	// ContainerPoolSettings
	ContainerPoolSettings *evergreen.ContainerPool `bson:"container_pool_settings,omitempty" json:"container_pool_settings,omitempty"`
	ContainerBuildAttempt int                      `bson:"container_build_attempt" json:"container_build_attempt"`

	// SpawnOptions holds data which the monitor uses to determine when to terminate hosts spawned by tasks.
	SpawnOptions SpawnOptions `bson:"spawn_options,omitempty" json:"spawn_options,omitempty"`

	// DockerOptions stores information for creating a container with a specific image and command
	DockerOptions DockerOptions `bson:"docker_options,omitempty" json:"docker_options,omitempty"`

	// InstanceTags stores user-specified tags for instances
	InstanceTags []Tag `bson:"instance_tags,omitempty" json:"instance_tags,omitempty"`
}

func AllHostsSpawnedByTasksToTerminate 

func AllHostsSpawnedByTasksToTerminate() ([]Host, error)

AllHostsSpawnedByTasksToTerminate finds all hosts spawned by tasks that should be terminated.

func AllIdleEphemeral 

func AllIdleEphemeral() ([]Host, error)

AllIdleEphemeral finds all running ephemeral hosts without containers that have no running tasks.

func Find 

func Find(query db.Q) ([]Host, error)

Find gets all Hosts for the given query.

func FindAllHostsSpawnedByTasks 

func FindAllHostsSpawnedByTasks() ([]Host, error)

FindAllHostsSpawnedByTasks finds all running hosts spawned by the `createhost` command.

func FindAllRunningContainers 

func FindAllRunningContainers() ([]Host, error)

FindAllRunningContainers finds all the containers that are currently running

func FindAllRunningParents 

func FindAllRunningParents() ([]Host, error)

FindAllRunningParents finds all running hosts that have child containers

func FindAllRunningParentsByDistro 

func FindAllRunningParentsByDistro(distroId string) ([]Host, error)

FindAllRunningParentsOnDistro finds all running hosts of a given distro with child containers

func FindAllRunningParentsOrdered 

func FindAllRunningParentsOrdered() ([]Host, error)

FindAllRunningParentsOrdered finds all running hosts with child containers, sorted in order of soonest to latest LastContainerFinishTime

func FindByExpiringJasperCredentials 

func FindByExpiringJasperCredentials(cutoff time.Duration) ([]Host, error)

FindByExpiringJasperCredentials finds all hosts whose Jasper service credentials will expire within the given cutoff.

func FindByFirstProvisioningAttempt 

func FindByFirstProvisioningAttempt() ([]Host, error)

func FindByNeedsNewAgentMonitor 

func FindByNeedsNewAgentMonitor() ([]Host, error)

FindByNeedsNewAgentMonitor returns running hosts that need a new agent monitor.

func FindHostsSpawnedByBuild 

func FindHostsSpawnedByBuild(buildID string) ([]Host, error)

FindHostsSpawnedByBuild finds hosts spawned by the `createhost` command scoped to a given build.

func FindHostsSpawnedByTask 

func FindHostsSpawnedByTask(taskID string) ([]Host, error)

FindHostsSpawnedByTask finds hosts spawned by the `createhost` command scoped to a given task.

func FindHostsToTerminate 

func FindHostsToTerminate() ([]Host, error)

func FindOne 

func FindOne(query db.Q) (*Host, error)

FindOne gets one Host for the given query.

func FindOneByIdOrTag 

func FindOneByIdOrTag(id string) (*Host, error)

FindOneByIdOrTag finds a host where the given id is stored in either the _id or tag field. (The tag field is used for the id from the host's original intent host.)

func FindOneByJasperCredentialsID 

func FindOneByJasperCredentialsID(id string) (*Host, error)

FindByJasperCredentialsID finds a host with the given Jasper credentials ID.

func FindOneId 

func FindOneId(id string) (*Host, error)

func FindRunningHosts 

func FindRunningHosts(includeSpawnHosts bool) ([]Host, error)

FindRunningHosts is the underlying query behind the hosts page's table

func FindTerminatedHostsRunningTasks 

func FindTerminatedHostsRunningTasks() ([]Host, error)

FindTerminatedHostsRunningTasks finds all hosts that were running tasks when they were either terminated or needed to be re-provisioned.

func FindUserDataSpawnHostsProvisioning 

func FindUserDataSpawnHostsProvisioning() ([]Host, error)

FindUserDataSpawnHostsProvisioning finds all spawn hosts that have been provisioned by the app server but are still being provisioned by user data.

func GenerateContainerHostIntents 

func GenerateContainerHostIntents(d distro.Distro, newContainersNeeded int, hostOptions CreateOptions) ([]Host, error)

GenerateContainerHostIntents generates container intent documents by going through available parents and packing on the parents with longest expected finish time

func GetHostsByFromIDWithStatus 

func GetHostsByFromIDWithStatus(id, status, user string, limit int) ([]Host, error)

func InsertParentIntentsAndGetNumHostsToSpawn 

func InsertParentIntentsAndGetNumHostsToSpawn(pool *evergreen.ContainerPool, newHostsNeeded int, ignoreMaxHosts bool) ([]Host, int, error)

func NewIntent 

func NewIntent(d distro.Distro, instanceName, provider string, options CreateOptions) *Host

NewIntent creates an IntentHost using the given host settings. An IntentHost is a host that does not exist yet but is intended to be picked up by the hostinit package and started. This function takes distro information, the name of the instance, the provider of the instance and a CreateOptions and returns an IntentHost.

func (*Host) AddTags 

func (h *Host) AddTags(tags []Tag)

AddTags adds the specified tags to the host document, or modifies an existing tag if it can be modified.

func (*Host) AgentMonitorOptions 

func (h *Host) AgentMonitorOptions(settings *evergreen.Settings) *options.Create

AgentMonitorOptions assembles the input to a Jasper request to start the agent monitor.

func (*Host) BootstrapScript 

func (h *Host) BootstrapScript(settings *evergreen.Settings, creds *rpc.Credentials, preJasperSetup, postJasperSetup []string) (string, error)

BootstrapScript creates the user data script to bootstrap the host.

func (*Host) CacheHostData 

func (h *Host) CacheHostData() error

func (*Host) ClearRunningAndSetLastTask 

func (h *Host) ClearRunningAndSetLastTask(t *task.Task) error

ClearRunningAndSetLastTask unsets the running task on the host and updates the last task fields.

func (*Host) ClearRunningTask 

func (h *Host) ClearRunningTask() error

ClearRunningTask unsets the running task on the host.

func (*Host) ClearRunningTeardownGroup 

func (h *Host) ClearRunningTeardownGroup() error

func (*Host) ClientURL 

func (h *Host) ClientURL(settings *evergreen.Settings) string

ClientURL returns the URL used to get the latest Evergreen client version.

func (*Host) CountContainersRunningAtTime 

func (h *Host) CountContainersRunningAtTime(timestamp time.Time) (int, error)

CountContainersRunningAtTime counts how many containers were running on the given parent host at the specified time, using the host StartTime and TerminationTime fields.

func (*Host) CreateSecret 

func (h *Host) CreateSecret() error

CreateSecret generates a host secret and updates the host both locally and in the database.

func (*Host) CurlCommand 

func (h *Host) CurlCommand(settings *evergreen.Settings) string

CurlCommand returns the command to curl the evergreen client.

func (*Host) CurlCommandWithRetry 

func (h *Host) CurlCommandWithRetry(settings *evergreen.Settings, numRetries, maxRetrySecs int) string

CurlCommandWithRetry is the same as CurlCommand but retries the request if numRetries and maxRetrySecs are non-zero.

func (*Host) DeleteJasperCredentials 

func (h *Host) DeleteJasperCredentials(ctx context.Context) error

DeleteJasperCredentials deletes the Jasper credentials for the host and updates the host both in memory and in the database.

func (*Host) DeleteTags 

func (h *Host) DeleteTags(keys []string)

DeleteTags removes tags specified by their keys, only if those keys are allowed to be deleted.

func (*Host) DisablePoisonedHost 

func (h *Host) DisablePoisonedHost(logs string) error

func (*Host) EstimateNumContainersForDuration 

func (h *Host) EstimateNumContainersForDuration(start, end time.Time) (float64, error)

EstimateNumberContainersForDuration estimates how many containers were running on a given host during the specified time interval by averaging the counts at the start and end. It is more accurate for shorter tasks.

func (*Host) FetchAndReinstallJasperCommand 

func (h *Host) FetchAndReinstallJasperCommand(settings *evergreen.Settings) string

FetchAndReinstallJasperCommand returns the command to fetch Jasper and restart the service with the latest version.

func (*Host) FetchJasperCommand 

func (h *Host) FetchJasperCommand(config evergreen.HostJasperConfig) string

FetchJasperCommand builds the command to download and extract the Jasper binary into the distro-specific binary directory.

func (*Host) FetchJasperCommandWithPath 

func (h *Host) FetchJasperCommandWithPath(config evergreen.HostJasperConfig, path string) string

FetchJasperCommandWithPath is the same as FetchJasperCommand but sets the PATH variable to path for each command.

func (*Host) ForceReinstallJasperCommand 

func (h *Host) ForceReinstallJasperCommand(settings *evergreen.Settings) string

ForceReinstallJasperCommand returns the command to stop the Jasper service, delete the current Jasper service configuration (if it exists), install the new configuration, and restart the service.

func (*Host) GenerateJasperCredentials 

func (h *Host) GenerateJasperCredentials(ctx context.Context) (*rpc.Credentials, error)

GenerateJasperCredentials creates the Jasper credentials for the given host without saving them to the database. If credentials already exist in the database, they are deleted.

func (*Host) GetContainers 

func (h *Host) GetContainers() ([]Host, error)

GetContainers finds all the containers belonging to this host errors if this host is not a parent

func (*Host) GetElapsedCommunicationTime 

func (h *Host) GetElapsedCommunicationTime() time.Duration

GetElapsedCommunicationTime returns how long since this host has communicated with evergreen or vice versa

func (*Host) GetParent 

func (h *Host) GetParent() (*Host, error)

GetParent finds the parent of this container errors if host is not a container or if parent cannot be found

func (*Host) GetSSHInfo 

func (h *Host) GetSSHInfo() (*util.StaticHostInfo, error)

GetSSHInfo returns the information necessary to SSH into this host.

func (*Host) GetSSHOptions 

func (h *Host) GetSSHOptions(keyPath string) ([]string, error)

GetSSHOptions returns the options to SSH into this host. EVG-6389: this currently relies on the fact that the EC2 provider has a single distro-level SSH key name corresponding to an existing SSH key file on the app servers. We should be able to handle multiple keys configured in admin settings rather than from a file name in distro settings.

func (*Host) GetTaskGroupString 

func (h *Host) GetTaskGroupString() string

func (*Host) IdleTime 

func (h *Host) IdleTime() time.Duration

IdleTime returns how long has this host been idle

func (*Host) IncContainerBuildAttempt 

func (h *Host) IncContainerBuildAttempt() error

func (*Host) IncCost 

func (h *Host) IncCost(amt float64) error

func (*Host) IncIdleTime 

func (h *Host) IncIdleTime(dur time.Duration) error

func (*Host) IncJasperDeployAttempts 

func (h *Host) IncJasperDeployAttempts() error

IncJasperDeployAttempts increments the number of times we have attempted to deploy Jasper to this host.

func (*Host) IncProvisionAttempts 

func (h *Host) IncProvisionAttempts() error

func (*Host) IncTaskCount 

func (h *Host) IncTaskCount() error

func (*Host) InitSystem 

func (h *Host) InitSystem(ctx context.Context, sshOptions []string) (string, error)

InitSystem determines the current Linux init system used by this host.

func (*Host) Insert 

func (h *Host) Insert() error

func (*Host) IsEphemeral 

func (h *Host) IsEphemeral() bool

func (*Host) IsIdleParent 

func (h *Host) IsIdleParent() (bool, error)

IsIdleParent determines whether a host with containers has exclusively terminated containers

func (*Host) IsWaitingForAgent 

func (h *Host) IsWaitingForAgent() bool

IsWaitingForAgent provides a local predicate for the logic for whether the host needs either a new agent or agent monitor.

func (*Host) JasperClient 

func (h *Host) JasperClient(ctx context.Context, settings *evergreen.Settings) (jasper.RemoteClient, error)

JasperClient returns a remote client that communicates with this host's Jasper service.

func (*Host) JasperClientCredentials 

func (h *Host) JasperClientCredentials(ctx context.Context) (*rpc.Credentials, error)

JasperClientCredentials gets the Jasper credentials for a client to communicate with the host's running Jasper service. These credentials should be used only to connect to the host's Jasper service.

func (*Host) JasperCommunication 

func (h *Host) JasperCommunication() bool

JasperCommunication returns whether or not the app server is communicating with this host's Jasper service.

func (*Host) JasperCredentials 

func (h *Host) JasperCredentials(ctx context.Context) (*rpc.Credentials, error)

JasperCredentials gets the Jasper credentials for this host's running Jasper service from the database. These credentials should not be used to connect to the Jasper service - use JasperClientCredentials for this purpose.

func (*Host) JasperCredentialsExpiration 

func (h *Host) JasperCredentialsExpiration(ctx context.Context) (time.Time, error)

JasperCredentialsExpiration returns the time at which the host's Jasper credentials will expire.

func (*Host) LegacyBootstrap 

func (h *Host) LegacyBootstrap() bool

LegacyBootstrap returns whether the host was bootstrapped using the legacy method.

func (*Host) LegacyCommunication 

func (h *Host) LegacyCommunication() bool

LegacyCommunication returns whether the app server is communicating with this host using the legacy method.

func (*Host) MarkAsProvisioned 

func (h *Host) MarkAsProvisioned() error

func (*Host) MarkReachable 

func (h *Host) MarkReachable() error

func (*Host) MarkUserDataDoneCommand 

func (h *Host) MarkUserDataDoneCommand() (string, error)

MarkUserDataDoneCommand creates the command to make the marker file indicating user data has finished executing.

func (*Host) MarshalBSON 

func (h *Host) MarshalBSON() ([]byte, error)

func (*Host) ModifySpawnHost 

func (h *Host) ModifySpawnHost(opts HostModifyOptions) error

ModifySpawnHost updates a spawnhost with the changes described in a HostModifyOptions struct.

func (*Host) Remove 

func (h *Host) Remove() error

func (*Host) ResetJasperDeployAttempts 

func (h *Host) ResetJasperDeployAttempts() error

ResetJasperDeployAttempts resets the number of Jasper deploy attempts to zero.

func (*Host) ResetLastCommunicated 

func (h *Host) ResetLastCommunicated() error

ResetLastCommunicated sets the LastCommunicationTime to be zero.

func (*Host) RestartJasperCommand 

func (h *Host) RestartJasperCommand(config evergreen.HostJasperConfig) string

RestartJasperCommand returns the command to restart the Jasper service with the existing configuration.

func (*Host) RunJasperProcess 

func (h *Host) RunJasperProcess(ctx context.Context, settings *evergreen.Settings, opts *options.Create) (string, error)

RunJasperProcess makes a request to the host's Jasper service to create the process with the given options, wait for its completion, and returns the output from it.

func (*Host) RunSSHCommand 

func (h *Host) RunSSHCommand(ctx context.Context, cmd string, sshOptions []string) (string, error)

RunSSHCommand runs an SSH command on a remote host.

func (*Host) SaveJasperCredentials 

func (h *Host) SaveJasperCredentials(ctx context.Context, creds *rpc.Credentials) error

SaveJasperCredentials saves the given Jasper credentials in the database for the host.

func (*Host) SetAgentRevision 

func (h *Host) SetAgentRevision(agentRevision string) error

SetAgentRevision sets the updated agent revision for the host

func (*Host) SetAgentStartTime 

func (h *Host) SetAgentStartTime() error

func (*Host) SetDNSName 

func (h *Host) SetDNSName(dnsName string) error

SetDNSName updates the DNS name for a given host once

func (*Host) SetDecommissioned 

func (h *Host) SetDecommissioned(user string, logs string) error

func (*Host) SetExpirationNotification 

func (h *Host) SetExpirationNotification(thresholdKey string) error

SetExpirationNotification updates the notification time for a spawn host

func (*Host) SetExpirationTime 

func (h *Host) SetExpirationTime(expirationTime time.Time) error

SetExpirationTime updates the expiration time of a spawn host

func (*Host) SetExtId 

func (h *Host) SetExtId() error

func (*Host) SetIPv6Address 

func (h *Host) SetIPv6Address(ipv6Address string) error

func (*Host) SetNeedsAgentDeploy 

func (h *Host) SetNeedsAgentDeploy(needsDeploy bool) error

SetNeedsAgentDeploy indicates that the host's agent or agent monitor needs to be deployed.

func (*Host) SetNeedsNewAgent 

func (h *Host) SetNeedsNewAgent(needsAgent bool) error

SetNeedsNewAgent sets the "needs new agent" flag on the host. This is a no-op on non-legacy hosts.

func (*Host) SetNeedsNewAgentAtomically 

func (h *Host) SetNeedsNewAgentAtomically(needsAgent bool) error

SetNeedsNewAgentAtomically sets the "needs new agent" flag on the host atomically.

func (*Host) SetNeedsNewAgentMonitor 

func (h *Host) SetNeedsNewAgentMonitor(needsAgentMonitor bool) error

SetNeedsNewAgentMonitor sets the "needs new agent monitor" flag on the host to indicate that the host needs to have the agent monitor deployed.

func (*Host) SetNeedsNewAgentMonitorAtomically 

func (h *Host) SetNeedsNewAgentMonitorAtomically(needsAgentMonitor bool) error

SetNeedsNewAgentMonitorAtomically is the same as SetNeedsNewAgentMonitor but performs an atomic update on the host in the database.

func (*Host) SetProvisionedNotRunning 

func (h *Host) SetProvisionedNotRunning() error

SetProvisionedNotRunning marks the host as having been provisioned by the app server but the host is not necessarily running yet.

func (*Host) SetProvisioning 

func (h *Host) SetProvisioning() error

SetProvisioning marks the host as initializing. Only allow this if the host is uninitialized.

func (*Host) SetQuarantined 

func (h *Host) SetQuarantined(user string, logs string) error

func (*Host) SetRunning 

func (h *Host) SetRunning(user string) error

func (*Host) SetRunningTeardownGroup 

func (h *Host) SetRunningTeardownGroup(taskID string) error

SetRunningTeardownGroup marks the host as running teardown_group for a task group, no-oping if it's already set to the same task

func (*Host) SetStatus 

func (h *Host) SetStatus(status, user string, logs string) error

func (*Host) SetTags 

func (h *Host) SetTags() error

SetTags updates the host's instance tags in the database.

func (*Host) SetTerminated 

func (h *Host) SetTerminated(user string) error

func (*Host) SetUnprovisioned 

func (h *Host) SetUnprovisioned() error

func (*Host) SetUserDataHostProvisioned 

func (h *Host) SetUserDataHostProvisioned() error

SetUserDataHostProvisioned sets the host to running if it was bootstrapped with user data but has not yet been marked as done provisioning.

func (*Host) SetupCommand 

func (h *Host) SetupCommand() string

func (*Host) SetupScriptCommands 

func (h *Host) SetupScriptCommands(settings *evergreen.Settings) (string, error)

SetupScriptCommands returns the commands contained in the setup script with the expansions applied from the settings.

func (*Host) SetupSpawnHostCommand 

func (h *Host) SetupSpawnHostCommand(settings *evergreen.Settings) (string, error)

SetupSpawnHostCommand returns the bash commands to handle setting up a spawn host.

func (*Host) StartAgentMonitorRequest 

func (h *Host) StartAgentMonitorRequest(settings *evergreen.Settings) (string, error)

StartAgentMonitorRequest builds the Jasper client request that starts the agent monitor on the host. The host secret is created if it doesn't exist yet.

func (*Host) StartJasperProcess 

func (h *Host) StartJasperProcess(ctx context.Context, settings *evergreen.Settings, opts *options.Create) error

StartJasperProcess makes a request to the host's Jasper service to start a process with the given options without waiting for its completion.

func (*Host) StopAgentMonitor 

func (h *Host) StopAgentMonitor(ctx context.Context, settings *evergreen.Settings) error

StopAgentMonitor stops the agent monitor (if it is running) on the host via its Jasper service . On legacy hosts, this is a no-op.

func (*Host) TearDownCommand 

func (h *Host) TearDownCommand() string

TearDownCommand returns a command for running a teardown script on a host.

func (*Host) Terminate 

func (h *Host) Terminate(user string) error

func (*Host) UnmarshalBSON 

func (h *Host) UnmarshalBSON(in []byte) error

func (*Host) UpdateDocumentID 

func (h *Host) UpdateDocumentID(newID string) (*Host, error)

UpdateDocumentID updates the host document corresponding to the current host to have a new ID by finding, deleting, and replacing the document with a new one.

func (*Host) UpdateJasperCredentialsID 

func (h *Host) UpdateJasperCredentialsID(id string) error

UpdateJasperCredentialsID sets the ID of the host's Jasper credentials.

func (*Host) UpdateLastCommunicated 

func (h *Host) UpdateLastCommunicated() error

UpdateLastCommunicated sets the host's last communication time to the current time.

func (*Host) UpdateLastContainerFinishTime 

func (h *Host) UpdateLastContainerFinishTime(t time.Time) error

UpdateLastContainerFinishTime updates latest finish time for a host with containers

func (*Host) UpdateProvisioningToRunning 

func (h *Host) UpdateProvisioningToRunning() error

UpdateProvisioningToRunning changes the host status from provisioning to running, as well as logging that the host has finished provisioning.

func (*Host) UpdateRunningTask 

func (h *Host) UpdateRunningTask(t *task.Task) (bool, error)

UpdateRunningTask updates the running task in the host document, returns - true, nil on success - false, nil on duplicate key error, task is already assigned to another host - false, error on all other errors

func (*Host) Upsert 

func (h *Host) Upsert() (*adb.ChangeInfo, error)

func (*Host) UserDataDoneFilePath 

func (h *Host) UserDataDoneFilePath() (string, error)

UserDataDoneFilePath returns the path to the user data done marker file.

func (*Host) WriteJasperCredentialsFileCommand 

func (h *Host) WriteJasperCredentialsFileCommand(creds *rpc.Credentials) (string, error)

WriteJasperCredentialsFileCommand builds the command to write the Jasper credentials to a file.

type HostGroup 

type HostGroup []Host

func AllActiveHosts 

func AllActiveHosts(distroID string) (HostGroup, error)

AllActiveHosts produces a HostGroup for all hosts with UpHost status as well as quarantined hosts. These do not count spawn hosts.

func AllRunningHosts 

func AllRunningHosts(distroID string) (HostGroup, error)

func (HostGroup) CountContainersOnParents 

func (hosts HostGroup) CountContainersOnParents() (int, error)

CountContainersOnParents counts how many containers are children of the given group of hosts

func (HostGroup) FindUphostContainersOnParents 

func (hosts HostGroup) FindUphostContainersOnParents() ([]Host, error)

FindUphostContainersOnParents returns the containers that are children of the given hosts

func (HostGroup) GetHostIds 

func (hosts HostGroup) GetHostIds() []string

GetHostIds returns a slice of host IDs for the given group of hosts

func (HostGroup) Stats 

func (hosts HostGroup) Stats() HostGroupStats

func (HostGroup) Uphosts 

func (hosts HostGroup) Uphosts() HostGroup

type HostGroupStats 

type HostGroupStats struct {
	Quarantined    int `bson:"quarantined" json:"quarantined" yaml:"quarantined"`
	Decommissioned int `bson:"decommissioned" json:"decommissioned" yaml:"decommissioned"`
	Idle           int `bson:"idle" json:"idle" yaml:"idle"`
	Active         int `bson:"active" json:"active" yaml:"active"`
	Provisioning   int `bson:"provisioning" json:"provisioning" yaml:"provisioning"`
	Total          int `bson:"total" json:"total" yaml:"total"`
}

type HostModifyOptions 

type HostModifyOptions struct {
	AddInstanceTags    []Tag
	DeleteInstanceTags []string
}

type IdleHostsByDistroID 

type IdleHostsByDistroID struct {
	DistroID          string `bson:"distro_id"`
	IdleHosts         []Host `bson:"idle_hosts"`
	RunningHostsCount int    `bson:"running_hosts_count"`
}

func IdleEphemeralGroupedByDistroID 

func IdleEphemeralGroupedByDistroID() ([]IdleHostsByDistroID, error)

IdleEphemeralGroupedByDistroId groups and collates the following by distro.Id: - []host.Host of ephemeral hosts without containers which having no running task, ordered by {host.CreationTime: 1} - the total number of ephemeral hosts with status: evergreen.HostRunning

func (*IdleHostsByDistroID) MarshalBSON 

func (h *IdleHostsByDistroID) MarshalBSON() ([]byte, error)

func (*IdleHostsByDistroID) UnmarshalBSON 

func (h *IdleHostsByDistroID) UnmarshalBSON(in []byte) error

type InactiveHostCounts 

type InactiveHostCounts struct {
	HostType string `bson:"_id"`
	Count    int    `bson:"count"`
}

func CountInactiveHostsByProvider 

func CountInactiveHostsByProvider() ([]InactiveHostCounts, error)

type ProviderStats 

type ProviderStats []StatsByProvider

func GetProviderCounts 

func GetProviderCounts() (ProviderStats, error)

GetProvierCounts returns data on the number of hosts by different provider stats.

func (ProviderStats) Map 

func (p ProviderStats) Map() map[string]int

type ProvisionOptions 

type ProvisionOptions struct {
	// LoadCLI indicates (if set) that while provisioning the host, the CLI binary should
	// be placed onto the host after startup.
	LoadCLI bool `bson:"load_cli" json:"load_cli"`

	// TaskId if non-empty will trigger the CLI tool to fetch source and artifacts for the given task.
	// Ignored if LoadCLI is false.
	TaskId string `bson:"task_id" json:"task_id"`

	// Owner is the user associated with the host used to populate any necessary metadata.
	OwnerId string `bson:"owner_id" json:"owner_id"`
}

ProvisionOptions is struct containing options about how a new host should be set up.

type SpawnOptions 

type SpawnOptions struct {
	// TimeoutTeardown is the time that this host should be torn down. In most cases, a host
	// should be torn down due to its task or build. TimeoutTeardown is a backstop to ensure that Evergreen
	// tears down a host if a task hangs or otherwise does not finish within an expected period of time.
	TimeoutTeardown time.Time `bson:"timeout_teardown" json:"timeout_teardown"`

	// TimeoutTeardown is the time after which Evergreen should give up trying to set up this host.
	TimeoutSetup time.Time `bson:"timeout_setup" json:"timeout_setup"`

	// TaskID is the task_id of the task to which this host is pinned. When the task finishes,
	// this host should be torn down. Only one of TaskID or BuildID should be set.
	TaskID string `bson:"task_id,omitempty" json:"task_id,omitempty"`

	// BuildID is the build_id of the build to which this host is pinned. When the build finishes,
	// this host should be torn down. Only one of TaskID or BuildID should be set.
	BuildID string `bson:"build_id,omitempty" json:"build_id,omitempty"`

	// Retries is the number of times Evergreen should try to spawn this host.
	Retries int `bson:"retries,omitempty" json:"retries,omitempty"`

	// SpawnedByTask indicates that this host has been spawned by a task.
	SpawnedByTask bool `bson:"spawned_by_task,omitempty" json:"spawned_by_task,omitempty"`
}

SpawnOptions holds data which the monitor uses to determine when to terminate hosts spawned by tasks.

type StatsByDistro 

type StatsByDistro struct {
	// ID of the distro the below stats are for
	Distro string `bson:"distro" json:"distro,omitempty"`
	// Provider is the provider type of the distro
	Provider string `bson:"provider" json:"provider,omitempty"`
	// Host status that the below stats are for
	Status string `bson:"status" json:"status"`
	// Number of hosts in this status
	Count int `bson:"count" json:"count"`
	// Number of tasks running on hosts in the above group (should only be nonzero for running hosts)
	NumTasks int `bson:"num_tasks_running" json:"num_tasks_running"`
	// MaxHosts reports the pool size of the distro.
	MaxHosts int `bson:"max_hosts" json:"max_hosts"`
}

func (*StatsByDistro) MarshalBSON 

func (d *StatsByDistro) MarshalBSON() ([]byte, error)

func (*StatsByDistro) UnmarshalBSON 

func (d *StatsByDistro) UnmarshalBSON(in []byte) error

type StatsByProvider 

type StatsByProvider struct {
	// the name of a host provider
	Provider string `bson:"provider" json:"provider"`
	// Number of hosts with this provider
	Count int `bson:"count" json:"count"`
}

type Tag 

type Tag struct {
	Key           string `bson:"key" json:"key"`
	Value         string `bson:"value" json:"value"`
	CanBeModified bool   `bson:"can_be_modified" json:"can_be_modified"`
}

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