unit

Documentation

Index

• func DefaultUnitType(name string) string
• func RecognizedUnitType(name string) bool
• type FakeUnitManager
  • func NewFakeUnitManager() *FakeUnitManager
  • func (fum *FakeUnitManager) GetUnitState(name string) (us *UnitState, err error)
  • func (fum *FakeUnitManager) Load(name string, u Unit) error
  • func (fum *FakeUnitManager) MarshalJSON() ([]byte, error)
  • func (fum *FakeUnitManager) Start(string)
  • func (fum *FakeUnitManager) Stop(string)
  • func (fum *FakeUnitManager) Units() ([]string, error)
  • func (fum *FakeUnitManager) Unload(name string)
• type Hash
  • func (h *Hash) Empty() bool
  • func (h Hash) Short() string
  • func (h Hash) String() string
• type InstanceUnit
  • func UnitNameToInstance(name string) *InstanceUnit
• type Unit
  • func NewUnit(raw string) *Unit
  • func NewUnitFromLegacyContents(contents map[string]map[string]string) *Unit
  • func (u *Unit) Description() string
  • func (u *Unit) Hash() Hash
  • func (u *Unit) String() string
• type UnitManager
• type UnitState
  • func NewUnitState(loadState, activeState, subState string, ms *machine.MachineState) *UnitState

Functions

func DefaultUnitType

func DefaultUnitType(name string) string

DefaultUnitType appends the default unit type to a given unit name, ignoring any file extensions that already exist.

func RecognizedUnitType

func RecognizedUnitType(name string) bool

RecognizedUnitType determines whether or not the given unit name represents a recognized unit type.

Types

type FakeUnitManager

type FakeUnitManager struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewFakeUnitManager

func NewFakeUnitManager() *FakeUnitManager

func (*FakeUnitManager) GetUnitState

func (fum *FakeUnitManager) GetUnitState(name string) (us *UnitState, err error)

func (*FakeUnitManager) Load

func (fum *FakeUnitManager) Load(name string, u Unit) error

func (*FakeUnitManager) MarshalJSON

func (fum *FakeUnitManager) MarshalJSON() ([]byte, error)

func (*FakeUnitManager) Start

func (fum *FakeUnitManager) Start(string)

func (*FakeUnitManager) Stop

func (fum *FakeUnitManager) Stop(string)

func (*FakeUnitManager) Units

func (fum *FakeUnitManager) Units() ([]string, error)

func (*FakeUnitManager) Unload

func (fum *FakeUnitManager) Unload(name string)

type Hash

type Hash [sha1.Size]byte

SHA1 sum

func (*Hash) Empty

func (h *Hash) Empty() bool

func (Hash) Short

func (h Hash) Short() string

func (Hash) String

func (h Hash) String() string

type InstanceUnit

type InstanceUnit struct {
	FullName string // Original name of the template unit (e.g. foo@bar.service)
	Template string // Name of the canonical template unit (e.g. foo@.service)
	Prefix   string // Prefix of the template unit (e.g. foo)
	Instance string // Instance name (e.g. bar)
}

InstanceUnit represents a Unit that has been instantiated from a template unit

func UnitNameToInstance

func UnitNameToInstance(name string) *InstanceUnit

UnitNameToInstance determines whether the given unit name appears to be an instance of a template unit. If so, it returns a non-nil *InstanceUnit; otherwise, nil.

type Unit

type Unit struct {
	// Contents represents the parsed unit file.
	// This field must be considered readonly.
	Contents map[string]map[string][]string

	// Raw represents the entire contents of the unit file.
	Raw string
}

A Unit represents a systemd configuration which encodes information about any of the unit types that fleet supports (as defined in SupportedUnitTypes()). Units are linked to Jobs by the Hash of their contents. Similar to systemd, a Unit configuration has no inherent name, but is rather named through the reference to it; in the case of systemd, the reference is the filename, and in the case of fleet, the reference is the name of the job that references this Unit.

func NewUnit

func NewUnit(raw string) *Unit

func NewUnitFromLegacyContents

func NewUnitFromLegacyContents(contents map[string]map[string]string) *Unit

NewUnitFromLegacyContents creates a Unit object from an obsolete unit file datastructure. This should only be used to remain backwards-compatible where necessary.

func (*Unit) Description

func (u *Unit) Description() string

Description returns the first Description option found in the Unit section. If the option is not defined, an empty string is returned.

func (*Unit) Hash

func (u *Unit) Hash() Hash

Hash returns the SHA1 hash of the raw contents of the Unit

func (*Unit) String

func (u *Unit) String() string

type UnitManager

type UnitManager interface {
	Load(string, Unit) error
	Unload(string)

	Start(string)
	Stop(string)

	Units() ([]string, error)
	GetUnitState(string) (*UnitState, error)

	MarshalJSON() ([]byte, error)
}

type UnitState

type UnitState struct {
	LoadState    string                `json:"loadState"`
	ActiveState  string                `json:"activeState"`
	SubState     string                `json:"subState"`
	MachineState *machine.MachineState `json:"machineState"`
}

UnitState encodes the current state of a unit loaded into systemd

func NewUnitState

func NewUnitState(loadState, activeState, subState string, ms *machine.MachineState) *UnitState