agent

package
v0.0.0-...-9ec3720 Latest Latest
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 Go to latest Published: Apr 6, 2021 License: AGPL-3.0 Imports: 125 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	// Should be an explicit dependency, can't do it cleanly yet.
	// Exported for testing.
	CaasOperatorManifolds = caasoperator.Manifolds
)
View Source 
var ProductionMongoWriteConcern = true

ProductionMongoWriteConcern is provided to override in tests, default is true

Functions

func ConnectAsAgent 

func ConnectAsAgent(a agent.Agent) (io.Closer, error)

ConnectAsAgent really connects to the API specified in the agent config. It's extracted so tests can pass something else in.

func MachineAgentFactoryFn 

func MachineAgentFactoryFn(
	agentConfWriter agentconf.AgentConfigWriter,
	bufferedLogger *logsender.BufferedLogWriter,
	newIntrospectionSocketName func(names.Tag) string,
	preUpgradeSteps upgrades.PreUpgradeStepsFunc,
	rootDir string,
) machineAgentFactoryFnType

MachineAgentFactoryFn returns a function which instantiates a MachineAgent given a machineId.

func NewCheckConnectionCommand 

func NewCheckConnectionCommand(config agentconf.AgentConf, connect ConnectFunc) cmd.Command

NewCheckConnectionCommand returns a command that will test connecting to the API with details from the agent's config.

func NewMachineAgentCmd 

func NewMachineAgentCmd(
	ctx *cmd.Context,
	machineAgentFactory machineAgentFactoryFnType,
	agentInitializer AgentInitializer,
	configFetcher agentconf.AgentConfigWriter,
) cmd.Command

NewMachineAgentCmd creates a Command which handles parsing command-line arguments and instantiating and running a MachineAgent.

Types

type AgentInitializer 

type AgentInitializer interface {
	AddFlags(*gnuflag.FlagSet)
	CheckArgs([]string) error
	// DataDir returns the directory where this agent should store its data.
	DataDir() string
}

AgentInitializer handles initializing a type for use as a Jujud agent.

type BootstrapCommand 

type BootstrapCommand struct {
	cmd.CommandBase
	agentconf.AgentConf
	BootstrapParamsFile string
	Timeout             time.Duration
}

BootstrapCommand represents a jujud bootstrap command.

func NewBootstrapCommand 

func NewBootstrapCommand() *BootstrapCommand

NewBootstrapCommand returns a new BootstrapCommand that has been initialized.

func (*BootstrapCommand) Info 

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

Info returns a description of the command.

func (*BootstrapCommand) Init 

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

Init initializes the command for running.

func (*BootstrapCommand) Run 

func (c *BootstrapCommand) Run(_ *cmd.Context) error

Run initializes state for an environment.

func (*BootstrapCommand) SetFlags 

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

SetFlags adds the flags for this command to the passed gnuflag.FlagSet.

type CAASUnitInitCommand 

type CAASUnitInitCommand struct {
	cmd.CommandBase

	Wait bool
	Send bool
	Args struct {
		Unit               string `json:"unit"`
		OperatorFile       string `json:"operator-file"`
		OperatorCACertFile string `json:"operator-ca-cert-file"`
		CharmDir           string `json:"charm-dir"`
		CallerPID          int    `json:"caller-pid"`
	}
	// contains filtered or unexported fields
}

CAASUnitInitCommand represents a jujud bootstrap command.

func NewCAASUnitInitCommand 

func NewCAASUnitInitCommand() *CAASUnitInitCommand

NewCAASUnitInitCommand returns a new CAASUnitInitCommand that has been initialized.

func (*CAASUnitInitCommand) Info 

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

Info returns a description of the command.

func (*CAASUnitInitCommand) Init 

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

func (*CAASUnitInitCommand) Run 

func (c *CAASUnitInitCommand) Run(ctx *cmd.Context) (errOut error)

func (*CAASUnitInitCommand) SetFlags 

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

type CaasOperatorAgent 

type CaasOperatorAgent struct {
	cmd.CommandBase
	agentconf.AgentConf

	ApplicationName string
	// contains filtered or unexported fields
}

CaasOperatorAgent is a cmd.Command responsible for running a CAAS operator agent.

func NewCaasOperatorAgent 

func NewCaasOperatorAgent(
	ctx *cmd.Context,
	bufferedLogger *logsender.BufferedLogWriter,
	configure func(*caasoperator.ManifoldsConfig) error,
) (*CaasOperatorAgent, error)

NewCaasOperatorAgent creates a new CAASOperatorAgent instance properly initialized.

func (*CaasOperatorAgent) ChangeConfig 

func (op *CaasOperatorAgent) ChangeConfig(mutate agent.ConfigMutator) error

ChangeConfig implements Agent.

func (*CaasOperatorAgent) Done 

func (op *CaasOperatorAgent) Done(err error)

Done signals the machine agent is finished

func (*CaasOperatorAgent) Info 

func (op *CaasOperatorAgent) Info() *cmd.Info

Info implements Command.

func (*CaasOperatorAgent) Init 

func (op *CaasOperatorAgent) Init(args []string) error

Init initializes the command for running.

func (*CaasOperatorAgent) Run 

func (op *CaasOperatorAgent) Run(ctx *cmd.Context) (err error)

Run implements Command.

func (*CaasOperatorAgent) SetFlags 

func (op *CaasOperatorAgent) SetFlags(f *gnuflag.FlagSet)

SetFlags implements Command.

func (*CaasOperatorAgent) Stop 

func (op *CaasOperatorAgent) Stop() error

Stop implements Worker.

func (*CaasOperatorAgent) Tag 

func (op *CaasOperatorAgent) Tag() names.Tag

Tag implements Agent.

func (*CaasOperatorAgent) Wait 

func (op *CaasOperatorAgent) Wait() error

Wait waits for the CaasOperator agent to finish.

func (*CaasOperatorAgent) Workers 

func (op *CaasOperatorAgent) Workers() (worker.Worker, error)

Workers returns a dependency.Engine running the operator's responsibilities.

type ConnectFunc 

type ConnectFunc func(agent.Agent) (io.Closer, error)

ConnectFunc connects to the API as the given agent.

type MachineAgent 

type MachineAgent struct {
	agentconf.AgentConfigWriter
	// contains filtered or unexported fields
}

MachineAgent is responsible for tying together all functionality needed to orchestrate a Jujud instance which controls a machine.

func NewMachineAgent 

func NewMachineAgent(
	agentTag names.Tag,
	agentConfWriter agentconf.AgentConfigWriter,
	bufferedLogger *logsender.BufferedLogWriter,
	runner *worker.Runner,
	loopDeviceManager looputil.LoopDeviceManager,
	newIntrospectionSocketName func(names.Tag) string,
	preUpgradeSteps upgrades.PreUpgradeStepsFunc,
	rootDir string,
	isCaasAgent bool,
) (*MachineAgent, error)

NewMachineAgent instantiates a new MachineAgent.

func (*MachineAgent) ChangeConfig 

func (a *MachineAgent) ChangeConfig(mutate agent.ConfigMutator) error

func (*MachineAgent) Done 

func (a *MachineAgent) Done(err error)

Done signals the machine agent is finished

func (*MachineAgent) Restart 

func (a *MachineAgent) Restart() error

Restart restarts the agent's service.

func (*MachineAgent) Run 

func (a *MachineAgent) Run(ctx *cmd.Context) (err error)

Run runs a machine agent.

func (*MachineAgent) Stop 

func (a *MachineAgent) Stop() error

Stop stops the machine agent.

func (*MachineAgent) Tag 

func (a *MachineAgent) Tag() names.Tag

func (*MachineAgent) Wait 

func (a *MachineAgent) Wait() error

Wait waits for the machine agent to finish.

func (*MachineAgent) WorkersStarted 

func (a *MachineAgent) WorkersStarted() <-chan struct{}

WorkersStarted returns a channel that's closed once all top level workers have been started. This is provided for testing purposes.

type ModelCommand 

type ModelCommand struct {
	agentconf.AgentConf
	cmd.CommandBase

	ModelUUID string
	// contains filtered or unexported fields
}

ModelCommand is a cmd.Command responsible for running a model agent.

func NewModelCommand 

func NewModelCommand() *ModelCommand

NewModelCommand creates a new ModelCommand instance properly initialized

func (*ModelCommand) Done 

func (m *ModelCommand) Done(err error)

Done signals the model agent is finished

func (*ModelCommand) Info 

func (m *ModelCommand) Info() *cmd.Info

Info implements Command

func (*ModelCommand) Init 

func (m *ModelCommand) Init(args []string) error

Init initializers the command for running

func (*ModelCommand) Run 

func (m *ModelCommand) Run(ctx *cmd.Context) error

Run implements Command

func (*ModelCommand) SetFlags 

func (m *ModelCommand) SetFlags(f *gnuflag.FlagSet)

SetFlags implements Command

func (*ModelCommand) Stop 

func (m *ModelCommand) Stop() error

Stop implements worker

func (*ModelCommand) Tag 

func (m *ModelCommand) Tag() names.Tag

func (*ModelCommand) Wait 

func (m *ModelCommand) Wait() error

func (*ModelCommand) Workers 

func (m *ModelCommand) Workers() (worker.Worker, error)

type UnitAgent 

type UnitAgent struct {
	cmd.CommandBase
	agentconf.AgentConf

	UnitName string
	// contains filtered or unexported fields
}

UnitAgent is a cmd.Command responsible for running a unit agent.

func NewUnitAgent 

func NewUnitAgent(ctx *cmd.Context, bufferedLogger *logsender.BufferedLogWriter) (*UnitAgent, error)

NewUnitAgent creates a new UnitAgent value properly initialized.

func (*UnitAgent) APIWorkers 

func (a *UnitAgent) APIWorkers() (worker.Worker, error)

APIWorkers returns a dependency.Engine running the unit agent's responsibilities.

func (*UnitAgent) ChangeConfig 

func (a *UnitAgent) ChangeConfig(mutate agent.ConfigMutator) error

func (*UnitAgent) Done 

func (a *UnitAgent) Done(err error)

Done signals the unit agent is finished

func (*UnitAgent) Info 

func (a *UnitAgent) Info() *cmd.Info

Info returns usage information for the command.

func (*UnitAgent) Init 

func (a *UnitAgent) Init(args []string) error

Init initializes the command for running.

func (*UnitAgent) Run 

func (a *UnitAgent) Run(ctx *cmd.Context) (err error)

Run runs a unit agent.

func (*UnitAgent) SetFlags 

func (a *UnitAgent) SetFlags(f *gnuflag.FlagSet)

func (*UnitAgent) Stop 

func (a *UnitAgent) Stop() error

Stop stops the unit agent.

func (*UnitAgent) Tag 

func (a *UnitAgent) Tag() names.Tag

func (*UnitAgent) Wait 

func (a *UnitAgent) Wait() error

Wait waits for the unit agent to finish

Source Files

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Directories

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