jujuc

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Published: Apr 25, 2016 License: AGPL-3.0 Imports: 30 Imported by: 0

Documentation

Overview

The worker/uniter/runner/jujuc package implements the server side of the jujuc proxy tool, which forwards command invocations to the unit agent process so that they can be executed against specific state.

Index

Constants

View Source
const CmdSuffix = cmdSuffix

CmdSuffix is the filename suffix to use for executables.

Variables

View Source
var ErrNoStdin = errors.New("hook tool requires stdin, none supplied")

ErrNoStdin is returned by Jujuc.Main if the hook tool requests stdin, and none is supplied.

View Source
var ErrRestrictedContext = errors.NotImplementedf("not implemented for restricted context")

ErrRestrictedContext indicates a method is not implemented in the given context.

View Source
var StorageAddDoc = `
Storage add adds storage instances to unit using provided storage directives.
A storage directive consists of a storage name as per charm specification
and optional storage COUNT.

COUNT is a positive integer indicating how many instances
of the storage to create. If unspecified, COUNT defaults to 1.
`[1:]

Functions

func CommandNames

func CommandNames() (names []string)

CommandNames returns the names of all jujuc commands.

func EnsureSymlinks(dir string) (err error)

EnsureSymlinks creates a symbolic link to jujuc within dir for each hook command. If the commands already exist, this operation does nothing. If dir is a symbolic link, it will be dereferenced first.

func IsNotAvailable

func IsNotAvailable(err error) bool

IsNotAvailable reports whether err was creates with NotAvailable().

func NewActionFailCommand

func NewActionFailCommand(ctx Context) (cmd.Command, error)

NewActionFailCommand returns a new ActionFailCommand with the given context.

func NewActionGetCommand

func NewActionGetCommand(ctx Context) (cmd.Command, error)

NewActionGetCommand returns an ActionGetCommand for use with the given context.

func NewActionSetCommand

func NewActionSetCommand(ctx Context) (cmd.Command, error)

NewActionSetCommand returns a new ActionSetCommand with the given context.

func NewAddMetricCommand

func NewAddMetricCommand(ctx Context) (cmd.Command, error)

NewAddMetricCommand generates a new AddMetricCommand.

func NewClosePortCommand

func NewClosePortCommand(ctx Context) (cmd.Command, error)

func NewCommand

func NewCommand(ctx Context, name string) (cmd.Command, error)

NewCommand returns an instance of the named Command, initialized to execute against the supplied Context.

func NewConfigGetCommand

func NewConfigGetCommand(ctx Context) (cmd.Command, error)

func NewIsLeaderCommand

func NewIsLeaderCommand(ctx Context) (cmd.Command, error)

NewIsLeaderCommand returns a new isLeaderCommand with the given context.

func NewJujuLogCommand

func NewJujuLogCommand(ctx Context) (cmd.Command, error)

func NewJujuRebootCommand

func NewJujuRebootCommand(ctx Context) (cmd.Command, error)

func NewLeaderGetCommand

func NewLeaderGetCommand(ctx Context) (cmd.Command, error)

NewLeaderGetCommand returns a new leaderGetCommand with the given context.

func NewLeaderSetCommand

func NewLeaderSetCommand(ctx Context) (cmd.Command, error)

NewLeaderSetCommand returns a new leaderSetCommand with the given context.

func NewNetworkGetCommand

func NewNetworkGetCommand(ctx Context) (cmd.Command, error)

func NewOpenPortCommand

func NewOpenPortCommand(ctx Context) (cmd.Command, error)

func NewOpenedPortsCommand

func NewOpenedPortsCommand(ctx Context) (cmd.Command, error)

func NewRelationGetCommand

func NewRelationGetCommand(ctx Context) (cmd.Command, error)

func NewRelationIdsCommand

func NewRelationIdsCommand(ctx Context) (cmd.Command, error)

func NewRelationListCommand

func NewRelationListCommand(ctx Context) (cmd.Command, error)

func NewRelationSetCommand

func NewRelationSetCommand(ctx Context) (cmd.Command, error)

func NewStatusGetCommand

func NewStatusGetCommand(ctx Context) (cmd.Command, error)

func NewStatusSetCommand

func NewStatusSetCommand(ctx Context) (cmd.Command, error)

NewStatusSetCommand makes a jujuc status-set command.

func NewStorageAddCommand

func NewStorageAddCommand(ctx Context) (cmd.Command, error)

NewStorageAddCommand makes a jujuc storage-add command.

func NewStorageGetCommand

func NewStorageGetCommand(ctx Context) (cmd.Command, error)

func NewStorageListCommand

func NewStorageListCommand(ctx Context) (cmd.Command, error)

func NewUnitGetCommand

func NewUnitGetCommand(ctx Context) (cmd.Command, error)

func NotAvailable

func NotAvailable(thing string) error

NotAvailable returns an error which satisfies IsNotAvailable.

func RegisterCommand

func RegisterCommand(name string, f creator)

Types

type ActionFailCommand

type ActionFailCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

ActionFailCommand implements the action-fail command.

func (*ActionFailCommand) Info

func (c *ActionFailCommand) Info() *cmd.Info

Info returns the content for --help.

func (*ActionFailCommand) Init

func (c *ActionFailCommand) Init(args []string) error

Init sets the fail message and checks for malformed invocations.

func (*ActionFailCommand) Run

func (c *ActionFailCommand) Run(ctx *cmd.Context) error

Run sets the Action's fail state.

func (*ActionFailCommand) SetFlags

func (c *ActionFailCommand) SetFlags(f *gnuflag.FlagSet)

SetFlags handles any option flags, but there are none.

type ActionGetCommand

type ActionGetCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

ActionGetCommand implements the action-get command.

func (*ActionGetCommand) Info

func (c *ActionGetCommand) Info() *cmd.Info

Info returns the content for --help.

func (*ActionGetCommand) Init

func (c *ActionGetCommand) Init(args []string) error

Init makes sure there are no additional unknown arguments to action-get.

func (*ActionGetCommand) Run

func (c *ActionGetCommand) Run(ctx *cmd.Context) error

Run recurses into the params map for the Action, given the list of keys into the map, and returns either the keyed value, or nothing. In the case of an empty keys list, the entire params map will be returned.

func (*ActionGetCommand) SetFlags

func (c *ActionGetCommand) SetFlags(f *gnuflag.FlagSet)

SetFlags handles known option flags; in this case, [--output={json|yaml}] and --help.

type ActionHookContext

type ActionHookContext interface {
	HookContext
	// contains filtered or unexported methods
}

ActionHookContext is the context for an action hook.

type ActionSetCommand

type ActionSetCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

ActionSetCommand implements the action-set command.

func (*ActionSetCommand) Info

func (c *ActionSetCommand) Info() *cmd.Info

Info returns the content for --help.

func (*ActionSetCommand) Init

func (c *ActionSetCommand) Init(args []string) error

Init accepts maps in the form of key=value, key.key2.keyN....=value

func (*ActionSetCommand) Run

func (c *ActionSetCommand) Run(ctx *cmd.Context) error

Run adds the given <key list>/<value> pairs, such as foo.bar=baz to the existing map of results for the Action.

func (*ActionSetCommand) SetFlags

func (c *ActionSetCommand) SetFlags(f *gnuflag.FlagSet)

SetFlags handles known option flags.

type AddMetricCommand

type AddMetricCommand struct {
	cmd.CommandBase

	Metrics []Metric
	// contains filtered or unexported fields
}

AddMetricCommand implements the add-metric command.

func (*AddMetricCommand) Info

func (c *AddMetricCommand) Info() *cmd.Info

Info returns the command infor structure for the add-metric command.

func (*AddMetricCommand) Init

func (c *AddMetricCommand) Init(args []string) error

Init parses the command's parameters.

func (*AddMetricCommand) Run

func (c *AddMetricCommand) Run(ctx *cmd.Context) (err error)

Run adds metrics to the hook context.

type CmdGetter

type CmdGetter func(contextId, cmdName string) (cmd.Command, error)

CmdGetter looks up a Command implementation connected to a particular Context.

type ConfigGetCommand

type ConfigGetCommand struct {
	cmd.CommandBase

	Key string // The key to show. If empty, show all.
	All bool
	// contains filtered or unexported fields
}

ConfigGetCommand implements the config-get command.

func (*ConfigGetCommand) Info

func (c *ConfigGetCommand) Info() *cmd.Info

func (*ConfigGetCommand) Init

func (c *ConfigGetCommand) Init(args []string) error

func (*ConfigGetCommand) Run

func (c *ConfigGetCommand) Run(ctx *cmd.Context) error

func (*ConfigGetCommand) SetFlags

func (c *ConfigGetCommand) SetFlags(f *gnuflag.FlagSet)

type Context

type Context interface {
	HookContext
	// contains filtered or unexported methods
}

Context is the interface that all hook helper commands depend on to interact with the rest of the system.

type ContextComponent

type ContextComponent interface {
	// Flush pushes the component's data to Juju state.
	// In the Flush implementation, call your components API.
	Flush() error
}

ContextComponent is a single modular Juju component as it relates to the current unit and hook. Components should implement this interfaces in a type-safe way. Ensuring checked type-conversions are preformed on the result and value interfaces. You will use the runner.RegisterComponentFunc to register a your components concrete ContextComponent implementation.

See: process/context/context.go for an implementation example.

type ContextComponents

type ContextComponents interface {
	// Component returns the ContextComponent with the supplied name if
	// it was found.
	Component(name string) (ContextComponent, error)
}

ContextComponents exposes modular Juju components as they relate to the unit in the context of the hook.

type ContextInstance

type ContextInstance interface {
	// AvailabilityZone returns the executing unit's availability zone or an error
	// if it was not found (or is not available).
	AvailabilityZone() (string, error)

	// RequestReboot will set the reboot flag to true on the machine agent
	RequestReboot(prio RebootPriority) error
}

ContextInstance is the part of a hook context related to the unit's instance.

type ContextLeadership

type ContextLeadership interface {
	// IsLeader returns true if the local unit is known to be leader for at
	// least the next 30s.
	IsLeader() (bool, error)

	// LeaderSettings returns the current leader settings. Once leader settings
	// have been read in a given context, they will not be updated other than
	// via successful calls to WriteLeaderSettings.
	LeaderSettings() (map[string]string, error)

	// WriteLeaderSettings writes the supplied settings directly to state, or
	// fails if the local unit is not the service's leader.
	WriteLeaderSettings(map[string]string) error
}

ContextLeadership is the part of a hook context related to the unit leadership.

type ContextMetrics

type ContextMetrics interface {
	// AddMetric records a metric to return after hook execution.
	AddMetric(string, string, time.Time) error
}

ContextMetrics is the part of a hook context related to metrics.

type ContextNetworking

type ContextNetworking interface {
	// PublicAddress returns the executing unit's public address or an
	// error if it is not available.
	PublicAddress() (string, error)

	// PrivateAddress returns the executing unit's private address or an
	// error if it is not available.
	PrivateAddress() (string, error)

	// OpenPorts marks the supplied port range for opening when the
	// executing unit's service is exposed.
	OpenPorts(protocol string, fromPort, toPort int) error

	// ClosePorts ensures the supplied port range is closed even when
	// the executing unit's service is exposed (unless it is opened
	// separately by a co- located unit).
	ClosePorts(protocol string, fromPort, toPort int) error

	// OpenedPorts returns all port ranges currently opened by this
	// unit on its assigned machine. The result is sorted first by
	// protocol, then by number.
	OpenedPorts() []network.PortRange

	// NetworkConfig returns the network configuration for the unit and the
	// given bindingName.
	//
	// TODO(dimitern): Currently, only the Address is populated, add the
	// rest later.
	//
	// LKK Card: https://canonical.leankit.com/Boards/View/101652562/119258804
	NetworkConfig(bindingName string) ([]params.NetworkConfig, error)
}

ContextNetworking is the part of a hook context related to network interface of the unit's instance.

type ContextRelation

type ContextRelation interface {

	// Id returns an integer which uniquely identifies the relation.
	Id() int

	// Name returns the name the locally executing charm assigned to this relation.
	Name() string

	// FakeId returns a string of the form "relation-name:123", which uniquely
	// identifies the relation to the hook. In reality, the identification
	// of the relation is the integer following the colon, but the composed
	// name is useful to humans observing it.
	FakeId() string

	// Settings allows read/write access to the local unit's settings in
	// this relation.
	Settings() (Settings, error)

	// UnitNames returns a list of the remote units in the relation.
	UnitNames() []string

	// ReadSettings returns the settings of any remote unit in the relation.
	ReadSettings(unit string) (params.Settings, error)
}

ContextRelation expresses the capabilities of a hook with respect to a relation.

type ContextRelations

type ContextRelations interface {
	// Relation returns the relation with the supplied id if it was found, and
	// an error if it was not found or is not available.
	Relation(id int) (ContextRelation, error)

	// RelationIds returns the ids of all relations the executing unit is
	// currently participating in or an error if they are not available.
	RelationIds() ([]int, error)
}

ContextRelations exposes the relations associated with the unit.

type ContextStatus

type ContextStatus interface {
	// UnitStatus returns the executing unit's current status.
	UnitStatus() (*StatusInfo, error)

	// SetUnitStatus updates the unit's status.
	SetUnitStatus(StatusInfo) error

	// ServiceStatus returns the executing unit's service status
	// (including all units).
	ServiceStatus() (ServiceStatusInfo, error)

	// SetServiceStatus updates the status for the unit's service.
	SetServiceStatus(StatusInfo) error
}

ContextStatus is the part of a hook context related to the unit's status.

type ContextStorage

type ContextStorage interface {
	// StorageTags returns a list of tags for storage instances
	// attached to the unit or an error if they are not available.
	StorageTags() ([]names.StorageTag, error)

	// Storage returns the ContextStorageAttachment with the supplied
	// tag if it was found, and an error if it was not found or is not
	// available to the context.
	Storage(names.StorageTag) (ContextStorageAttachment, error)

	// HookStorage returns the storage attachment associated
	// the executing hook if it was found, and an error if it
	// was not found or is not available.
	HookStorage() (ContextStorageAttachment, error)

	// AddUnitStorage saves storage constraints in the context.
	AddUnitStorage(map[string]params.StorageConstraints) error
}

ContextStorage is the part of a hook context related to storage resources associated with the unit.

type ContextStorageAttachment

type ContextStorageAttachment interface {

	// Tag returns a tag which uniquely identifies the storage attachment
	// in the context of the unit.
	Tag() names.StorageTag

	// Kind returns the kind of the storage.
	Kind() storage.StorageKind

	// Location returns the location of the storage: the mount point for
	// filesystem-kind stores, and the device path for block-kind stores.
	Location() string
}

ContextStorageAttachment expresses the capabilities of a hook with respect to a storage attachment.

type ContextUnit

type ContextUnit interface {
	// UnitName returns the executing unit's name.
	UnitName() string

	// Config returns the current service configuration of the executing unit.
	ConfigSettings() (charm.Settings, error)
}

ContextUnit is the part of a hook context related to the unit.

type HookContext

HookContext represents the information and functionality that is common to all charm hooks.

type JujuLogCommand

type JujuLogCommand struct {
	cmd.CommandBase

	Message string
	Debug   bool
	Level   string
	// contains filtered or unexported fields
}

JujuLogCommand implements the juju-log command.

func (*JujuLogCommand) Info

func (c *JujuLogCommand) Info() *cmd.Info

func (*JujuLogCommand) Init

func (c *JujuLogCommand) Init(args []string) error

func (*JujuLogCommand) Run

func (c *JujuLogCommand) Run(ctx *cmd.Context) error

func (*JujuLogCommand) SetFlags

func (c *JujuLogCommand) SetFlags(f *gnuflag.FlagSet)

type JujuRebootCommand

type JujuRebootCommand struct {
	cmd.CommandBase

	Now bool
	// contains filtered or unexported fields
}

JujuRebootCommand implements the juju-reboot command.

func (*JujuRebootCommand) Info

func (c *JujuRebootCommand) Info() *cmd.Info

func (*JujuRebootCommand) Init

func (c *JujuRebootCommand) Init(args []string) error

func (*JujuRebootCommand) Run

func (c *JujuRebootCommand) Run(ctx *cmd.Context) error

func (*JujuRebootCommand) SetFlags

func (c *JujuRebootCommand) SetFlags(f *gnuflag.FlagSet)

type Jujuc

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

Jujuc implements the jujuc command in the form required by net/rpc.

func (*Jujuc) Main

func (j *Jujuc) Main(req Request, resp *exec.ExecResponse) error

Main runs the Command specified by req, and fills in resp. A single command is run at a time.

type Metric

type Metric struct {
	Key   string
	Value string
	Time  time.Time
}

Metric represents a single metric set by the charm.

type NetworkGetCommand

type NetworkGetCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

NetworkGetCommand implements the network-get command.

func (*NetworkGetCommand) Info

func (c *NetworkGetCommand) Info() *cmd.Info

Info is part of the cmd.Command interface.

func (*NetworkGetCommand) Init

func (c *NetworkGetCommand) Init(args []string) error

Init is part of the cmd.Command interface.

func (*NetworkGetCommand) Run

func (c *NetworkGetCommand) Run(ctx *cmd.Context) error

func (*NetworkGetCommand) SetFlags

func (c *NetworkGetCommand) SetFlags(f *gnuflag.FlagSet)

SetFlags is part of the cmd.Command interface.

type OpenedPortsCommand

type OpenedPortsCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

OpenedPortsCommand implements the opened-ports command.

func (*OpenedPortsCommand) Info

func (c *OpenedPortsCommand) Info() *cmd.Info

func (*OpenedPortsCommand) Init

func (c *OpenedPortsCommand) Init(args []string) error

func (*OpenedPortsCommand) Run

func (c *OpenedPortsCommand) Run(ctx *cmd.Context) error

func (*OpenedPortsCommand) SetFlags

func (c *OpenedPortsCommand) SetFlags(f *gnuflag.FlagSet)

type RebootPriority

type RebootPriority int

RebootPriority is the type used for reboot requests.

const (
	// RebootSkip is a noop.
	RebootSkip RebootPriority = iota
	// RebootAfterHook means wait for current hook to finish before
	// rebooting.
	RebootAfterHook
	// RebootNow means reboot immediately, killing and requeueing the
	// calling hook
	RebootNow
)

type RelationGetCommand

type RelationGetCommand struct {
	cmd.CommandBase

	RelationId int

	Key      string
	UnitName string
	// contains filtered or unexported fields
}

RelationGetCommand implements the relation-get command.

func (*RelationGetCommand) Info

func (c *RelationGetCommand) Info() *cmd.Info

Info is part of the cmd.Command interface.

func (*RelationGetCommand) Init

func (c *RelationGetCommand) Init(args []string) error

Init is part of the cmd.Command interface.

func (*RelationGetCommand) Run

func (c *RelationGetCommand) Run(ctx *cmd.Context) error

func (*RelationGetCommand) SetFlags

func (c *RelationGetCommand) SetFlags(f *gnuflag.FlagSet)

SetFlags is part of the cmd.Command interface.

type RelationHookContext

type RelationHookContext interface {
	HookContext
	// contains filtered or unexported methods
}

RelationHookContext is the context for a relation hook.

type RelationIdsCommand

type RelationIdsCommand struct {
	cmd.CommandBase

	Name string
	// contains filtered or unexported fields
}

RelationIdsCommand implements the relation-ids command.

func (*RelationIdsCommand) Info

func (c *RelationIdsCommand) Info() *cmd.Info

func (*RelationIdsCommand) Init

func (c *RelationIdsCommand) Init(args []string) error

func (*RelationIdsCommand) Run

func (c *RelationIdsCommand) Run(ctx *cmd.Context) error

func (*RelationIdsCommand) SetFlags

func (c *RelationIdsCommand) SetFlags(f *gnuflag.FlagSet)

type RelationListCommand

type RelationListCommand struct {
	cmd.CommandBase

	RelationId int
	// contains filtered or unexported fields
}

RelationListCommand implements the relation-list command.

func (*RelationListCommand) Info

func (c *RelationListCommand) Info() *cmd.Info

func (*RelationListCommand) Init

func (c *RelationListCommand) Init(args []string) (err error)

func (*RelationListCommand) Run

func (c *RelationListCommand) Run(ctx *cmd.Context) error

func (*RelationListCommand) SetFlags

func (c *RelationListCommand) SetFlags(f *gnuflag.FlagSet)

type RelationSetCommand

type RelationSetCommand struct {
	cmd.CommandBase

	RelationId int

	Settings map[string]string
	// contains filtered or unexported fields
}

RelationSetCommand implements the relation-set command.

func (*RelationSetCommand) Info

func (c *RelationSetCommand) Info() *cmd.Info

func (*RelationSetCommand) Init

func (c *RelationSetCommand) Init(args []string) error

func (*RelationSetCommand) Run

func (c *RelationSetCommand) Run(ctx *cmd.Context) (err error)

func (*RelationSetCommand) SetFlags

func (c *RelationSetCommand) SetFlags(f *gnuflag.FlagSet)

type Request

type Request struct {
	ContextId   string
	Dir         string
	CommandName string
	Args        []string

	// StdinSet indicates whether or not the client supplied stdin. This is
	// necessary as Stdin will be nil if the client supplied stdin but it
	// is empty.
	StdinSet bool
	Stdin    []byte
}

Request contains the information necessary to run a Command remotely.

type RestrictedContext

type RestrictedContext struct{}

RestrictedContext is a base implementation for restricted contexts to embed, so that an error is returned for methods that are not explicitly implemented.

func (*RestrictedContext) ActionParams

func (*RestrictedContext) ActionParams() (map[string]interface{}, error)

ActionParams implements jujuc.Context.

func (*RestrictedContext) AddMetric

func (*RestrictedContext) AddMetric(string, string, time.Time) error

AddMetric implements jujuc.Context.

func (*RestrictedContext) AddUnitStorage

AddUnitStorage implements jujuc.Context.

func (*RestrictedContext) AvailabilityZone

func (*RestrictedContext) AvailabilityZone() (string, error)

AvailabilityZone implements jujuc.Context.

func (*RestrictedContext) ClosePorts

func (*RestrictedContext) ClosePorts(protocol string, fromPort, toPort int) error

ClosePorts implements jujuc.Context.

func (*RestrictedContext) Component

Component implements jujc.Context.

func (*RestrictedContext) ConfigSettings

func (*RestrictedContext) ConfigSettings() (charm.Settings, error)

ConfigSettings implements jujuc.Context.

func (*RestrictedContext) HookRelation

func (*RestrictedContext) HookRelation() (ContextRelation, error)

HookRelation implements jujuc.Context.

func (*RestrictedContext) HookStorage

HookStorage implements jujuc.Context.

func (*RestrictedContext) IsLeader

func (*RestrictedContext) IsLeader() (bool, error)

IsLeader implements jujuc.Context.

func (*RestrictedContext) LeaderSettings

func (*RestrictedContext) LeaderSettings() (map[string]string, error)

LeaderSettings implements jujuc.Context.

func (*RestrictedContext) NetworkConfig

func (*RestrictedContext) NetworkConfig(bindingName string) ([]params.NetworkConfig, error)

NetworkConfig implements jujuc.Context.

func (*RestrictedContext) OpenPorts

func (*RestrictedContext) OpenPorts(protocol string, fromPort, toPort int) error

OpenPorts implements jujuc.Context.

func (*RestrictedContext) OpenedPorts

func (*RestrictedContext) OpenedPorts() []network.PortRange

OpenedPorts implements jujuc.Context.

func (*RestrictedContext) PrivateAddress

func (*RestrictedContext) PrivateAddress() (string, error)

PrivateAddress implements jujuc.Context.

func (*RestrictedContext) PublicAddress

func (*RestrictedContext) PublicAddress() (string, error)

PublicAddress implements jujuc.Context.

func (*RestrictedContext) Relation

func (*RestrictedContext) Relation(id int) (ContextRelation, error)

Relation implements jujuc.Context.

func (*RestrictedContext) RelationIds

func (*RestrictedContext) RelationIds() ([]int, error)

RelationIds implements jujuc.Context.

func (*RestrictedContext) RemoteUnitName

func (*RestrictedContext) RemoteUnitName() (string, error)

RemoteUnitName implements jujuc.Context.

func (*RestrictedContext) RequestReboot

func (*RestrictedContext) RequestReboot(prio RebootPriority) error

RequestReboot implements jujuc.Context.

func (*RestrictedContext) ServiceStatus

func (*RestrictedContext) ServiceStatus() (ServiceStatusInfo, error)

ServiceStatus implements jujuc.Context.

func (*RestrictedContext) SetActionFailed

func (*RestrictedContext) SetActionFailed() error

SetActionFailed implements jujuc.Context.

func (*RestrictedContext) SetActionMessage

func (*RestrictedContext) SetActionMessage(string) error

SetActionMessage implements jujuc.Context.

func (*RestrictedContext) SetServiceStatus

func (*RestrictedContext) SetServiceStatus(StatusInfo) error

SetServiceStatus implements jujuc.Context.

func (*RestrictedContext) SetUnitStatus

func (*RestrictedContext) SetUnitStatus(StatusInfo) error

SetUnitStatus implements jujuc.Context.

func (*RestrictedContext) Storage

Storage implements jujuc.Context.

func (*RestrictedContext) StorageTags

func (*RestrictedContext) StorageTags() ([]names.StorageTag, error)

StorageTags implements jujuc.Context.

func (*RestrictedContext) UnitStatus

func (*RestrictedContext) UnitStatus() (*StatusInfo, error)

UnitStatus implements jujuc.Context.

func (*RestrictedContext) UpdateActionResults

func (*RestrictedContext) UpdateActionResults(keys []string, value string) error

UpdateActionResults implements jujuc.Context.

func (*RestrictedContext) WriteLeaderSettings

func (*RestrictedContext) WriteLeaderSettings(map[string]string) error

WriteLeaderSettings implements jujuc.Context.

type Server

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

Server implements a server that serves command invocations via a unix domain socket.

func NewServer

func NewServer(getCmd CmdGetter, socketPath string) (*Server, error)

NewServer creates an RPC server bound to socketPath, which can execute remote command invocations against an appropriate Context. It will not actually do so until Run is called.

func (*Server) Close

func (s *Server) Close()

Close immediately stops accepting connections, and blocks until all existing connections have been closed.

func (*Server) Run

func (s *Server) Run() (err error)

Run accepts new connections until it encounters an error, or until Close is called, and then blocks until all existing connections have been closed.

type ServiceStatusInfo

type ServiceStatusInfo struct {
	Service StatusInfo
	Units   []StatusInfo
}

ServiceStatusInfo holds StatusInfo for a Service and all its Units.

type Settings

type Settings interface {
	Map() params.Settings
	Set(string, string)
	Delete(string)
}

Settings is implemented by types that manipulate unit settings.

type StatusGetCommand

type StatusGetCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

StatusGetCommand implements the status-get command.

func (*StatusGetCommand) Info

func (c *StatusGetCommand) Info() *cmd.Info

func (*StatusGetCommand) Init

func (c *StatusGetCommand) Init(args []string) error

func (*StatusGetCommand) Run

func (c *StatusGetCommand) Run(ctx *cmd.Context) error

func (*StatusGetCommand) ServiceStatus

func (c *StatusGetCommand) ServiceStatus(ctx *cmd.Context) error

func (*StatusGetCommand) SetFlags

func (c *StatusGetCommand) SetFlags(f *gnuflag.FlagSet)

type StatusInfo

type StatusInfo struct {
	Tag    string
	Status string
	Info   string
	Data   map[string]interface{}
}

StatusInfo is a record of the status information for a service or a unit's workload.

type StatusSetCommand

type StatusSetCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

StatusSetCommand implements the status-set command.

func (*StatusSetCommand) Info

func (c *StatusSetCommand) Info() *cmd.Info

func (*StatusSetCommand) Init

func (c *StatusSetCommand) Init(args []string) error

func (*StatusSetCommand) Run

func (c *StatusSetCommand) Run(ctx *cmd.Context) error

func (*StatusSetCommand) SetFlags

func (c *StatusSetCommand) SetFlags(f *gnuflag.FlagSet)

type StorageAddCommand

type StorageAddCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

StorageAddCommand implements the status-set command.

func (*StorageAddCommand) Info

func (s *StorageAddCommand) Info() *cmd.Info

func (*StorageAddCommand) Init

func (s *StorageAddCommand) Init(args []string) error

func (*StorageAddCommand) Run

func (s *StorageAddCommand) Run(ctx *cmd.Context) error

type StorageGetCommand

type StorageGetCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

StorageGetCommand implements the storage-get command.

func (*StorageGetCommand) Info

func (c *StorageGetCommand) Info() *cmd.Info

func (*StorageGetCommand) Init

func (c *StorageGetCommand) Init(args []string) error

func (*StorageGetCommand) Run

func (c *StorageGetCommand) Run(ctx *cmd.Context) error

func (*StorageGetCommand) SetFlags

func (c *StorageGetCommand) SetFlags(f *gnuflag.FlagSet)

type StorageListCommand

type StorageListCommand struct {
	cmd.CommandBase
	// contains filtered or unexported fields
}

StorageListCommand implements the storage-list command.

StorageListCommand implements cmd.Command.

func (*StorageListCommand) Info

func (c *StorageListCommand) Info() *cmd.Info

func (*StorageListCommand) Init

func (c *StorageListCommand) Init(args []string) (err error)

func (*StorageListCommand) Run

func (c *StorageListCommand) Run(ctx *cmd.Context) error

func (*StorageListCommand) SetFlags

func (c *StorageListCommand) SetFlags(f *gnuflag.FlagSet)

type UnitGetCommand

type UnitGetCommand struct {
	cmd.CommandBase

	Key string
	// contains filtered or unexported fields
}

UnitGetCommand implements the unit-get command.

func (*UnitGetCommand) Info

func (c *UnitGetCommand) Info() *cmd.Info

func (*UnitGetCommand) Init

func (c *UnitGetCommand) Init(args []string) error

func (*UnitGetCommand) Run

func (c *UnitGetCommand) Run(ctx *cmd.Context) error

func (*UnitGetCommand) SetFlags

func (c *UnitGetCommand) SetFlags(f *gnuflag.FlagSet)

type UnitHookContext

type UnitHookContext interface {
	HookContext
}

UnitHookContext is the context for a unit hook.

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