corechecks

Documentation

Index

• func GetRegisteredFactoryKeys() []string
• func RegisterCheck(name string, c CheckFactory)
• type CheckBase
  • func NewCheckBase(name string) CheckBase
  • func (c *CheckBase) BuildID(instance, initConfig integration.Data)
  • func (c *CheckBase) CommonConfigure(instance integration.Data) error
  • func (c *CheckBase) Configure(data integration.Data, initConfig integration.Data) error
  • func (c *CheckBase) GetMetricStats() (map[string]int64, error)
  • func (c *CheckBase) GetWarnings() []error
  • func (c *CheckBase) ID() check.ID
  • func (c *CheckBase) Interval() time.Duration
  • func (c *CheckBase) Stop()
  • func (c *CheckBase) String() string
  • func (c *CheckBase) Version() string
  • func (c *CheckBase) Warn(v ...interface{}) error
  • func (c *CheckBase) Warnf(format string, params ...interface{}) error
• type CheckFactory
  • func GetCheckFactory(name string) CheckFactory
• type GoCheckLoader
  • func NewGoCheckLoader() (*GoCheckLoader, error)
  • func (gl *GoCheckLoader) Load(config integration.Config) ([]check.Check, error)
  • func (gl *GoCheckLoader) String() string

Functions

func GetRegisteredFactoryKeys

func GetRegisteredFactoryKeys() []string

GetRegisteredFactoryKeys get the keys for all registered factories

func RegisterCheck

func RegisterCheck(name string, c CheckFactory)

RegisterCheck adds a check to the catalog

Types

type CheckBase

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

CheckBase provides default implementations for most of the check.Check interface to make it easier to bootstrap a new corecheck.

To use it, you need to embed it in your check struct, by calling NewCheckBase() in your factory, plus: - long-running checks must override Stop() and Interval() - checks supporting multiple instances must call BuildID() from their Config() method - after optionally building a unique ID, CommonConfigure() must be called from the Config() method to handle the common instance fields

Integration warnings are handled via the Warn and Warnf methods that forward the warning to the logger and send the warning to the collector for display in the status page and the web UI.

If custom tags are set in the instance configuration, they will be automatically appended to each send done by this check.

func NewCheckBase

func NewCheckBase(name string) CheckBase

NewCheckBase returns a check base struct with a given check name

func (*CheckBase) BuildID

func (c *CheckBase) BuildID(instance, initConfig integration.Data)

BuildID is to be called by the check's Config() method to generate the unique check ID.

func (*CheckBase) CommonConfigure

func (c *CheckBase) CommonConfigure(instance integration.Data) error

CommonConfigure is called when checks implement their own Configure method, in order to setup common options (run interval, empty hostname)

func (*CheckBase) Configure

func (c *CheckBase) Configure(data integration.Data, initConfig integration.Data) error

Configure is provided for checks that require no config. If overridden, the call to CommonConfigure must be preserved.

func (*CheckBase) GetMetricStats

func (c *CheckBase) GetMetricStats() (map[string]int64, error)

GetMetricStats returns the stats from the last run of the check.

func (*CheckBase) GetWarnings

func (c *CheckBase) GetWarnings() []error

GetWarnings grabs the latest integration warnings for the check.

func (*CheckBase) ID

func (c *CheckBase) ID() check.ID

ID returns a unique ID for that check instance

For checks that only support one instance, the default value is the check name. Regular checks must call BuildID() from Config() to build their ID.

func (*CheckBase) Interval

func (c *CheckBase) Interval() time.Duration

Interval returns the scheduling time for the check. Long-running checks should override to return 0.

func (*CheckBase) Stop

func (c *CheckBase) Stop()

Stop does nothing by default, you need to implement it in long-running checks (persisting after Run() exits)

func (*CheckBase) String

func (c *CheckBase) String() string

String returns the name of the check, the same for every instance

func (*CheckBase) Version

func (c *CheckBase) Version() string

Version returns an empty string as Go check can't be updated independently from the agent

func (*CheckBase) Warn

func (c *CheckBase) Warn(v ...interface{}) error

Warn sends an integration warning to logs + agent status.

func (*CheckBase) Warnf

func (c *CheckBase) Warnf(format string, params ...interface{}) error

Warnf sends an integration warning to logs + agent status.

type CheckFactory

type CheckFactory func() check.Check

CheckFactory factory function type to instantiate checks

func GetCheckFactory

func GetCheckFactory(name string) CheckFactory

GetCheckFactory grabs factory for specific check

type GoCheckLoader

type GoCheckLoader struct{}

GoCheckLoader is a specific loader for checks living in this package

func NewGoCheckLoader

func NewGoCheckLoader() (*GoCheckLoader, error)

NewGoCheckLoader creates a loader for go checks

func (*GoCheckLoader) Load

func (gl *GoCheckLoader) Load(config integration.Config) ([]check.Check, error)

Load returns a list of checks, one for every configuration instance found in `config`

func (*GoCheckLoader) String

func (gl *GoCheckLoader) String() string