 Documentation
      ¶
      Documentation
      ¶
    
    
  
    
  
    Index ¶
- Constants
- type Annotations
- type CAConfig
- type ClusterInfo
- type ContainerSpec
- type ContainerStatus
- type DNSConfig
- type DispatcherConfig
- type Driver
- type EncryptionConfig
- type Endpoint
- type EndpointSpec
- type EndpointVirtualIP
- type EngineDescription
- type ExternalCA
- type ExternalCAProtocol
- type GlobalService
- type IPAMConfig
- type IPAMOptions
- type Info
- type InitRequest
- type JoinRequest
- type JoinTokens
- type LocalNodeState
- type ManagerStatus
- type Meta
- type Network
- type NetworkAttachment
- type NetworkAttachmentConfig
- type NetworkSpec
- type Node
- type NodeAvailability
- type NodeDescription
- type NodeRole
- type NodeSpec
- type NodeState
- type NodeStatus
- type OrchestrationConfig
- type Peer
- type Placement
- type Platform
- type PluginDescription
- type PortConfig
- type PortConfigProtocol
- type PortConfigPublishMode
- type PortStatus
- type RaftConfig
- type Reachability
- type ReplicatedService
- type ResolutionMode
- type ResourceRequirements
- type Resources
- type RestartPolicy
- type RestartPolicyCondition
- type Secret
- type SecretReference
- type SecretReferenceFileTarget
- type SecretSpec
- type Service
- type ServiceMode
- type ServiceSpec
- type Spec
- type Swarm
- type Task
- type TaskDefaults
- type TaskSpec
- type TaskState
- type TaskStatus
- type UnlockRequest
- type UpdateConfig
- type UpdateFlags
- type UpdateState
- type UpdateStatus
- type Version
Constants ¶
const ( // UpdateFailureActionPause PAUSE UpdateFailureActionPause = "pause" // UpdateFailureActionContinue CONTINUE UpdateFailureActionContinue = "continue" )
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Annotations ¶
type Annotations struct {
	Name   string            `json:",omitempty"`
	Labels map[string]string `json:",omitempty"`
}
    Annotations represents how to describe an object.
type CAConfig ¶
type CAConfig struct {
	// NodeCertExpiry is the duration certificates should be issued for
	NodeCertExpiry time.Duration `json:",omitempty"`
	// ExternalCAs is a list of CAs to which a manager node will make
	// certificate signing requests for node certificates.
	ExternalCAs []*ExternalCA `json:",omitempty"`
}
    CAConfig represents CA configuration.
type ClusterInfo ¶
ClusterInfo represents info about the cluster for outputing in "info" it contains the same information as "Swarm", but without the JoinTokens
type ContainerSpec ¶
type ContainerSpec struct {
	Image           string                  `json:",omitempty"`
	Labels          map[string]string       `json:",omitempty"`
	Command         []string                `json:",omitempty"`
	Args            []string                `json:",omitempty"`
	Hostname        string                  `json:",omitempty"`
	Env             []string                `json:",omitempty"`
	Dir             string                  `json:",omitempty"`
	User            string                  `json:",omitempty"`
	Groups          []string                `json:",omitempty"`
	TTY             bool                    `json:",omitempty"`
	OpenStdin       bool                    `json:",omitempty"`
	Mounts          []mount.Mount           `json:",omitempty"`
	StopGracePeriod *time.Duration          `json:",omitempty"`
	Healthcheck     *container.HealthConfig `json:",omitempty"`
	// The format of extra hosts on swarmkit is specified in:
	// http://man7.org/linux/man-pages/man5/hosts.5.html
	//    IP_address canonical_hostname [aliases...]
	Hosts     []string           `json:",omitempty"`
	DNSConfig *DNSConfig         `json:",omitempty"`
	Secrets   []*SecretReference `json:",omitempty"`
}
    ContainerSpec represents the spec of a container.
type ContainerStatus ¶
type ContainerStatus struct {
	ContainerID string `json:",omitempty"`
	PID         int    `json:",omitempty"`
	ExitCode    int    `json:",omitempty"`
}
    ContainerStatus represents the status of a container.
type DNSConfig ¶
type DNSConfig struct {
	// Nameservers specifies the IP addresses of the name servers
	Nameservers []string `json:",omitempty"`
	// Search specifies the search list for host-name lookup
	Search []string `json:",omitempty"`
	// Options allows certain internal resolver variables to be modified
	Options []string `json:",omitempty"`
}
    DNSConfig specifies DNS related configurations in resolver configuration file (resolv.conf) Detailed documentation is available in: http://man7.org/linux/man-pages/man5/resolv.conf.5.html `nameserver`, `search`, `options` have been supported. TODO: `domain` is not supported yet.
type DispatcherConfig ¶
type DispatcherConfig struct {
	// HeartbeatPeriod defines how often agent should send heartbeats to
	// dispatcher.
	HeartbeatPeriod time.Duration `json:",omitempty"`
}
    DispatcherConfig represents dispatcher configuration.
type Driver ¶
type Driver struct {
	Name    string            `json:",omitempty"`
	Options map[string]string `json:",omitempty"`
}
    Driver represents a driver (network, logging).
type EncryptionConfig ¶
type EncryptionConfig struct {
	// AutoLockManagers specifies whether or not managers TLS keys and raft data
	// should be encrypted at rest in such a way that they must be unlocked
	// before the manager node starts up again.
	AutoLockManagers bool
}
    EncryptionConfig controls at-rest encryption of data and keys.
type Endpoint ¶
type Endpoint struct {
	Spec       EndpointSpec        `json:",omitempty"`
	Ports      []PortConfig        `json:",omitempty"`
	VirtualIPs []EndpointVirtualIP `json:",omitempty"`
}
    Endpoint represents an endpoint.
type EndpointSpec ¶
type EndpointSpec struct {
	Mode  ResolutionMode `json:",omitempty"`
	Ports []PortConfig   `json:",omitempty"`
}
    EndpointSpec represents the spec of an endpoint.
type EndpointVirtualIP ¶
type EndpointVirtualIP struct {
	NetworkID string `json:",omitempty"`
	Addr      string `json:",omitempty"`
}
    EndpointVirtualIP represents the virtual ip of a port.
type EngineDescription ¶
type EngineDescription struct {
	EngineVersion string              `json:",omitempty"`
	Labels        map[string]string   `json:",omitempty"`
	Plugins       []PluginDescription `json:",omitempty"`
}
    EngineDescription represents the description of an engine.
type ExternalCA ¶
type ExternalCA struct {
	// Protocol is the protocol used by this external CA.
	Protocol ExternalCAProtocol
	// URL is the URL where the external CA can be reached.
	URL string
	// Options is a set of additional key/value pairs whose interpretation
	// depends on the specified CA type.
	Options map[string]string `json:",omitempty"`
}
    ExternalCA defines external CA to be used by the cluster.
type ExternalCAProtocol ¶
type ExternalCAProtocol string
ExternalCAProtocol represents type of external CA.
const ExternalCAProtocolCFSSL ExternalCAProtocol = "cfssl"
    ExternalCAProtocolCFSSL CFSSL
type IPAMConfig ¶
type IPAMConfig struct {
	Subnet  string `json:",omitempty"`
	Range   string `json:",omitempty"`
	Gateway string `json:",omitempty"`
}
    IPAMConfig represents ipam configuration.
type IPAMOptions ¶
type IPAMOptions struct {
	Driver  Driver       `json:",omitempty"`
	Configs []IPAMConfig `json:",omitempty"`
}
    IPAMOptions represents ipam options.
type Info ¶
type Info struct {
	NodeID   string
	NodeAddr string
	LocalNodeState   LocalNodeState
	ControlAvailable bool
	Error            string
	RemoteManagers []Peer
	Nodes          int
	Managers       int
	Cluster ClusterInfo
}
    Info represents generic information about swarm.
type InitRequest ¶
type InitRequest struct {
	ListenAddr       string
	AdvertiseAddr    string
	ForceNewCluster  bool
	Spec             Spec
	AutoLockManagers bool
}
    InitRequest is the request used to init a swarm.
type JoinRequest ¶
type JoinRequest struct {
	ListenAddr    string
	AdvertiseAddr string
	RemoteAddrs   []string
	JoinToken     string // accept by secret
}
    JoinRequest is the request used to join a swarm.
type JoinTokens ¶
type JoinTokens struct {
	// Worker is the join token workers may use to join the swarm.
	Worker string
	// Manager is the join token managers may use to join the swarm.
	Manager string
}
    JoinTokens contains the tokens workers and managers need to join the swarm.
type LocalNodeState ¶
type LocalNodeState string
LocalNodeState represents the state of the local node.
const ( // LocalNodeStateInactive INACTIVE LocalNodeStateInactive LocalNodeState = "inactive" // LocalNodeStatePending PENDING LocalNodeStatePending LocalNodeState = "pending" // LocalNodeStateActive ACTIVE LocalNodeStateActive LocalNodeState = "active" // LocalNodeStateError ERROR LocalNodeStateError LocalNodeState = "error" // LocalNodeStateLocked LOCKED LocalNodeStateLocked LocalNodeState = "locked" )
type ManagerStatus ¶
type ManagerStatus struct {
	Leader       bool         `json:",omitempty"`
	Reachability Reachability `json:",omitempty"`
	Addr         string       `json:",omitempty"`
}
    ManagerStatus represents the status of a manager.
type Meta ¶
type Meta struct {
	Version   Version   `json:",omitempty"`
	CreatedAt time.Time `json:",omitempty"`
	UpdatedAt time.Time `json:",omitempty"`
}
    Meta is a base object inherited by most of the other once.
type Network ¶
type Network struct {
	ID string
	Meta
	Spec        NetworkSpec  `json:",omitempty"`
	DriverState Driver       `json:",omitempty"`
	IPAMOptions *IPAMOptions `json:",omitempty"`
}
    Network represents a network.
type NetworkAttachment ¶
type NetworkAttachment struct {
	Network   Network  `json:",omitempty"`
	Addresses []string `json:",omitempty"`
}
    NetworkAttachment represents a network attachment.
type NetworkAttachmentConfig ¶
type NetworkAttachmentConfig struct {
	Target  string   `json:",omitempty"`
	Aliases []string `json:",omitempty"`
}
    NetworkAttachmentConfig represents the configuration of a network attachment.
type NetworkSpec ¶
type NetworkSpec struct {
	Annotations
	DriverConfiguration *Driver      `json:",omitempty"`
	IPv6Enabled         bool         `json:",omitempty"`
	Internal            bool         `json:",omitempty"`
	Attachable          bool         `json:",omitempty"`
	IPAMOptions         *IPAMOptions `json:",omitempty"`
}
    NetworkSpec represents the spec of a network.
type Node ¶
type Node struct {
	ID string
	Meta
	// Spec defines the desired state of the node as specified by the user.
	// The system will honor this and will *never* modify it.
	Spec NodeSpec `json:",omitempty"`
	// Description encapsulates the properties of the Node as reported by the
	// agent.
	Description NodeDescription `json:",omitempty"`
	// Status provides the current status of the node, as seen by the manager.
	Status NodeStatus `json:",omitempty"`
	// ManagerStatus provides the current status of the node's manager
	// component, if the node is a manager.
	ManagerStatus *ManagerStatus `json:",omitempty"`
}
    Node represents a node.
type NodeAvailability ¶
type NodeAvailability string
NodeAvailability represents the availability of a node.
const ( // NodeAvailabilityActive ACTIVE NodeAvailabilityActive NodeAvailability = "active" // NodeAvailabilityPause PAUSE NodeAvailabilityPause NodeAvailability = "pause" // NodeAvailabilityDrain DRAIN NodeAvailabilityDrain NodeAvailability = "drain" )
type NodeDescription ¶
type NodeDescription struct {
	Hostname  string            `json:",omitempty"`
	Platform  Platform          `json:",omitempty"`
	Resources Resources         `json:",omitempty"`
	Engine    EngineDescription `json:",omitempty"`
}
    NodeDescription represents the description of a node.
type NodeSpec ¶
type NodeSpec struct {
	Annotations
	Role         NodeRole         `json:",omitempty"`
	Availability NodeAvailability `json:",omitempty"`
}
    NodeSpec represents the spec of a node.
type NodeStatus ¶
type NodeStatus struct {
	State   NodeState `json:",omitempty"`
	Message string    `json:",omitempty"`
	Addr    string    `json:",omitempty"`
}
    NodeStatus represents the status of a node.
type OrchestrationConfig ¶
type OrchestrationConfig struct {
	// TaskHistoryRetentionLimit is the number of historic tasks to keep per instance or
	// node. If negative, never remove completed or failed tasks.
	TaskHistoryRetentionLimit *int64 `json:",omitempty"`
}
    OrchestrationConfig represents orchestration configuration.
type Placement ¶
type Placement struct {
	Constraints []string `json:",omitempty"`
}
    Placement represents orchestration parameters.
type PluginDescription ¶
PluginDescription represents the description of an engine plugin.
type PortConfig ¶
type PortConfig struct {
	Name     string             `json:",omitempty"`
	Protocol PortConfigProtocol `json:",omitempty"`
	// TargetPort is the port inside the container
	TargetPort uint32 `json:",omitempty"`
	// PublishedPort is the port on the swarm hosts
	PublishedPort uint32 `json:",omitempty"`
	// PublishMode is the mode in which port is published
	PublishMode PortConfigPublishMode `json:",omitempty"`
}
    PortConfig represents the config of a port.
type PortConfigProtocol ¶
type PortConfigProtocol string
PortConfigProtocol represents the protocol of a port.
const ( // PortConfigProtocolTCP TCP PortConfigProtocolTCP PortConfigProtocol = "tcp" // PortConfigProtocolUDP UDP PortConfigProtocolUDP PortConfigProtocol = "udp" )
type PortConfigPublishMode ¶
type PortConfigPublishMode string
PortConfigPublishMode represents the mode in which the port is to be published.
const ( // PortConfigPublishModeIngress is used for ports published // for ingress load balancing using routing mesh. PortConfigPublishModeIngress PortConfigPublishMode = "ingress" // PortConfigPublishModeHost is used for ports published // for direct host level access on the host where the task is running. PortConfigPublishModeHost PortConfigPublishMode = "host" )
type PortStatus ¶
type PortStatus struct {
	Ports []PortConfig `json:",omitempty"`
}
    PortStatus represents the port status of a task's host ports whose service has published host ports
type RaftConfig ¶
type RaftConfig struct {
	// SnapshotInterval is the number of log entries between snapshots.
	SnapshotInterval uint64 `json:",omitempty"`
	// KeepOldSnapshots is the number of snapshots to keep beyond the
	// current snapshot.
	KeepOldSnapshots *uint64 `json:",omitempty"`
	// LogEntriesForSlowFollowers is the number of log entries to keep
	// around to sync up slow followers after a snapshot is created.
	LogEntriesForSlowFollowers uint64 `json:",omitempty"`
	// ElectionTick is the number of ticks that a follower will wait for a message
	// from the leader before becoming a candidate and starting an election.
	// ElectionTick must be greater than HeartbeatTick.
	//
	// A tick currently defaults to one second, so these translate directly to
	// seconds currently, but this is NOT guaranteed.
	ElectionTick int
	// HeartbeatTick is the number of ticks between heartbeats. Every
	// HeartbeatTick ticks, the leader will send a heartbeat to the
	// followers.
	//
	// A tick currently defaults to one second, so these translate directly to
	// seconds currently, but this is NOT guaranteed.
	HeartbeatTick int
}
    RaftConfig represents raft configuration.
type Reachability ¶
type Reachability string
Reachability represents the reachability of a node.
const ( // ReachabilityUnknown UNKNOWN ReachabilityUnknown Reachability = "unknown" // ReachabilityUnreachable UNREACHABLE ReachabilityUnreachable Reachability = "unreachable" // ReachabilityReachable REACHABLE ReachabilityReachable Reachability = "reachable" )
type ReplicatedService ¶
type ReplicatedService struct {
	Replicas *uint64 `json:",omitempty"`
}
    ReplicatedService is a kind of ServiceMode.
type ResolutionMode ¶
type ResolutionMode string
ResolutionMode represents a resolution mode.
const ( // ResolutionModeVIP VIP ResolutionModeVIP ResolutionMode = "vip" // ResolutionModeDNSRR DNSRR ResolutionModeDNSRR ResolutionMode = "dnsrr" )
type ResourceRequirements ¶
type ResourceRequirements struct {
	Limits       *Resources `json:",omitempty"`
	Reservations *Resources `json:",omitempty"`
}
    ResourceRequirements represents resources requirements.
type RestartPolicy ¶
type RestartPolicy struct {
	Condition   RestartPolicyCondition `json:",omitempty"`
	Delay       *time.Duration         `json:",omitempty"`
	MaxAttempts *uint64                `json:",omitempty"`
	Window      *time.Duration         `json:",omitempty"`
}
    RestartPolicy represents the restart policy.
type RestartPolicyCondition ¶
type RestartPolicyCondition string
RestartPolicyCondition represents when to restart.
const ( // RestartPolicyConditionNone NONE RestartPolicyConditionNone RestartPolicyCondition = "none" // RestartPolicyConditionOnFailure ON_FAILURE RestartPolicyConditionOnFailure RestartPolicyCondition = "on-failure" // RestartPolicyConditionAny ANY RestartPolicyConditionAny RestartPolicyCondition = "any" )
type SecretReference ¶
type SecretReference struct {
	File       *SecretReferenceFileTarget
	SecretID   string
	SecretName string
}
    SecretReference is a reference to a secret in swarm
type SecretReferenceFileTarget ¶
SecretReferenceFileTarget is a file target in a secret reference
type SecretSpec ¶
type SecretSpec struct {
	Annotations
	Data []byte `json:",omitempty"`
}
    SecretSpec represents a secret specification from a secret in swarm
type Service ¶
type Service struct {
	ID string
	Meta
	Spec         ServiceSpec  `json:",omitempty"`
	PreviousSpec *ServiceSpec `json:",omitempty"`
	Endpoint     Endpoint     `json:",omitempty"`
	UpdateStatus UpdateStatus `json:",omitempty"`
}
    Service represents a service.
type ServiceMode ¶
type ServiceMode struct {
	Replicated *ReplicatedService `json:",omitempty"`
	Global     *GlobalService     `json:",omitempty"`
}
    ServiceMode represents the mode of a service.
type ServiceSpec ¶
type ServiceSpec struct {
	Annotations
	// TaskTemplate defines how the service should construct new tasks when
	// orchestrating this service.
	TaskTemplate TaskSpec      `json:",omitempty"`
	Mode         ServiceMode   `json:",omitempty"`
	UpdateConfig *UpdateConfig `json:",omitempty"`
	// Networks field in ServiceSpec is deprecated. The
	// same field in TaskSpec should be used instead.
	// This field will be removed in a future release.
	Networks     []NetworkAttachmentConfig `json:",omitempty"`
	EndpointSpec *EndpointSpec             `json:",omitempty"`
}
    ServiceSpec represents the spec of a service.
type Spec ¶
type Spec struct {
	Annotations
	Orchestration    OrchestrationConfig `json:",omitempty"`
	Raft             RaftConfig          `json:",omitempty"`
	Dispatcher       DispatcherConfig    `json:",omitempty"`
	CAConfig         CAConfig            `json:",omitempty"`
	TaskDefaults     TaskDefaults        `json:",omitempty"`
	EncryptionConfig EncryptionConfig    `json:",omitempty"`
}
    Spec represents the spec of a swarm.
type Task ¶
type Task struct {
	ID string
	Meta
	Annotations
	Spec                TaskSpec            `json:",omitempty"`
	ServiceID           string              `json:",omitempty"`
	Slot                int                 `json:",omitempty"`
	NodeID              string              `json:",omitempty"`
	Status              TaskStatus          `json:",omitempty"`
	DesiredState        TaskState           `json:",omitempty"`
	NetworksAttachments []NetworkAttachment `json:",omitempty"`
}
    Task represents a task.
type TaskDefaults ¶
type TaskDefaults struct {
	// LogDriver selects the log driver to use for tasks created in the
	// orchestrator if unspecified by a service.
	//
	// Updating this value will only have an affect on new tasks. Old tasks
	// will continue use their previously configured log driver until
	// recreated.
	LogDriver *Driver `json:",omitempty"`
}
    TaskDefaults parameterizes cluster-level task creation with default values.
type TaskSpec ¶
type TaskSpec struct {
	ContainerSpec ContainerSpec             `json:",omitempty"`
	Resources     *ResourceRequirements     `json:",omitempty"`
	RestartPolicy *RestartPolicy            `json:",omitempty"`
	Placement     *Placement                `json:",omitempty"`
	Networks      []NetworkAttachmentConfig `json:",omitempty"`
	// LogDriver specifies the LogDriver to use for tasks created from this
	// spec. If not present, the one on cluster default on swarm.Spec will be
	// used, finally falling back to the engine default if not specified.
	LogDriver *Driver `json:",omitempty"`
	// ForceUpdate is a counter that triggers an update even if no relevant
	// parameters have been changed.
	ForceUpdate uint64
}
    TaskSpec represents the spec of a task.
type TaskState ¶
type TaskState string
TaskState represents the state of a task.
const ( // TaskStateNew NEW TaskStateNew TaskState = "new" // TaskStateAllocated ALLOCATED TaskStateAllocated TaskState = "allocated" // TaskStatePending PENDING TaskStatePending TaskState = "pending" // TaskStateAssigned ASSIGNED TaskStateAssigned TaskState = "assigned" // TaskStateAccepted ACCEPTED TaskStateAccepted TaskState = "accepted" // TaskStatePreparing PREPARING TaskStatePreparing TaskState = "preparing" // TaskStateReady READY TaskStateReady TaskState = "ready" // TaskStateStarting STARTING TaskStateStarting TaskState = "starting" // TaskStateRunning RUNNING TaskStateRunning TaskState = "running" // TaskStateComplete COMPLETE TaskStateComplete TaskState = "complete" // TaskStateShutdown SHUTDOWN TaskStateShutdown TaskState = "shutdown" // TaskStateFailed FAILED TaskStateFailed TaskState = "failed" // TaskStateRejected REJECTED TaskStateRejected TaskState = "rejected" )
type TaskStatus ¶
type TaskStatus struct {
	Timestamp       time.Time       `json:",omitempty"`
	State           TaskState       `json:",omitempty"`
	Message         string          `json:",omitempty"`
	Err             string          `json:",omitempty"`
	ContainerStatus ContainerStatus `json:",omitempty"`
	PortStatus      PortStatus      `json:",omitempty"`
}
    TaskStatus represents the status of a task.
type UnlockRequest ¶
type UnlockRequest struct {
	// UnlockKey is the unlock key in ASCII-armored format.
	UnlockKey string
}
    UnlockRequest is the request used to unlock a swarm.
type UpdateConfig ¶
type UpdateConfig struct {
	// Maximum number of tasks to be updated in one iteration.
	// 0 means unlimited parallelism.
	Parallelism uint64
	// Amount of time between updates.
	Delay time.Duration `json:",omitempty"`
	// FailureAction is the action to take when an update failures.
	FailureAction string `json:",omitempty"`
	// Monitor indicates how long to monitor a task for failure after it is
	// created. If the task fails by ending up in one of the states
	// REJECTED, COMPLETED, or FAILED, within Monitor from its creation,
	// this counts as a failure. If it fails after Monitor, it does not
	// count as a failure. If Monitor is unspecified, a default value will
	// be used.
	Monitor time.Duration `json:",omitempty"`
	// MaxFailureRatio is the fraction of tasks that may fail during
	// an update before the failure action is invoked. Any task created by
	// the current update which ends up in one of the states REJECTED,
	// COMPLETED or FAILED within Monitor from its creation counts as a
	// failure. The number of failures is divided by the number of tasks
	// being updated, and if this fraction is greater than
	// MaxFailureRatio, the failure action is invoked.
	//
	// If the failure action is CONTINUE, there is no effect.
	// If the failure action is PAUSE, no more tasks will be updated until
	// another update is started.
	MaxFailureRatio float32
}
    UpdateConfig represents the update configuration.
type UpdateFlags ¶
type UpdateFlags struct {
	RotateWorkerToken      bool
	RotateManagerToken     bool
	RotateManagerUnlockKey bool
}
    UpdateFlags contains flags for SwarmUpdate.
type UpdateState ¶
type UpdateState string
UpdateState is the state of a service update.
const ( // UpdateStateUpdating is the updating state. UpdateStateUpdating UpdateState = "updating" // UpdateStatePaused is the paused state. UpdateStatePaused UpdateState = "paused" // UpdateStateCompleted is the completed state. UpdateStateCompleted UpdateState = "completed" )
type UpdateStatus ¶
type UpdateStatus struct {
	State       UpdateState `json:",omitempty"`
	StartedAt   time.Time   `json:",omitempty"`
	CompletedAt time.Time   `json:",omitempty"`
	Message     string      `json:",omitempty"`
}
    UpdateStatus reports the status of a service update.