telemetry

Documentation

Index

• type Config
  • func (c *Config) Validate() error
• type LogsConfig
• type LogsSamplingConfig
• type MetricsConfig
• type Settings
• type Telemetry
  • func New(_ context.Context, set Settings, cfg Config) (*Telemetry, error)
  • func (t *Telemetry) Logger() *zap.Logger
  • func (t *Telemetry) Shutdown(ctx context.Context) error
  • func (t *Telemetry) TracerProvider() trace.TracerProvider
• type TracesConfig

Types

type Config

type Config struct {
	Logs    LogsConfig    `mapstructure:"logs"`
	Metrics MetricsConfig `mapstructure:"metrics"`
	Traces  TracesConfig  `mapstructure:"traces"`

	// Resource specifies user-defined attributes to include with all emitted telemetry.
	// Note that some attributes are added automatically (e.g. service.version) even
	// if they are not specified here. In order to suppress such attributes the
	// attribute must be specified in this map with null YAML value (nil string pointer).
	Resource map[string]*string `mapstructure:"resource"`
}

Config defines the configurable settings for service telemetry.

func (*Config) Validate

func (c *Config) Validate() error

Validate checks whether the current configuration is valid

type LogsConfig

type LogsConfig struct {
	// Level is the minimum enabled logging level.
	// (default = "INFO")
	Level zapcore.Level `mapstructure:"level"`

	// Development puts the logger in development mode, which changes the
	// behavior of DPanicLevel and takes stacktraces more liberally.
	// (default = false)
	Development bool `mapstructure:"development"`

	// Encoding sets the logger's encoding.
	// Example values are "json", "console".
	Encoding string `mapstructure:"encoding"`

	// DisableCaller stops annotating logs with the calling function's file
	// name and line number. By default, all logs are annotated.
	// (default = false)
	DisableCaller bool `mapstructure:"disable_caller"`

	// DisableStacktrace completely disables automatic stacktrace capturing. By
	// default, stacktraces are captured for WarnLevel and above logs in
	// development and ErrorLevel and above in production.
	// (default = false)
	DisableStacktrace bool `mapstructure:"disable_stacktrace"`

	// Sampling sets a sampling policy. A nil SamplingConfig disables sampling.
	Sampling *LogsSamplingConfig `mapstructure:"sampling"`

	// OutputPaths is a list of URLs or file paths to write logging output to.
	// The URLs could only be with "file" schema or without schema.
	// The URLs with "file" schema must be an absolute path.
	// The URLs without schema are treated as local file paths.
	// "stdout" and "stderr" are interpreted as os.Stdout and os.Stderr.
	// see details at Open in zap/writer.go.
	// (default = ["stderr"])
	OutputPaths []string `mapstructure:"output_paths"`

	// ErrorOutputPaths is a list of URLs or file paths to write zap internal logger errors to.
	// The URLs could only be with "file" schema or without schema.
	// The URLs with "file" schema must use absolute paths.
	// The URLs without schema are treated as local file paths.
	// "stdout" and "stderr" are interpreted as os.Stdout and os.Stderr.
	// see details at Open in zap/writer.go.
	//
	// Note that this setting only affects the zap internal logger errors.
	// (default = ["stderr"])
	ErrorOutputPaths []string `mapstructure:"error_output_paths"`

	// InitialFields is a collection of fields to add to the root logger.
	// Example:
	//
	// 		initial_fields:
	//	   		foo: "bar"
	//
	// By default, there is no initial field.
	InitialFields map[string]interface{} `mapstructure:"initial_fields"`
}

LogsConfig defines the configurable settings for service telemetry logs. This MUST be compatible with zap.Config. Cannot use directly zap.Config because the collector uses mapstructure and not yaml tags.

type LogsSamplingConfig

type LogsSamplingConfig struct {
	Initial    int `mapstructure:"initial"`
	Thereafter int `mapstructure:"thereafter"`
}

LogsSamplingConfig sets a sampling strategy for the logger. Sampling caps the global CPU and I/O load that logging puts on your process while attempting to preserve a representative subset of your logs.

type MetricsConfig

type MetricsConfig struct {
	// Level is the level of telemetry metrics, the possible values are:
	//  - "none" indicates that no telemetry data should be collected;
	//  - "basic" is the recommended and covers the basics of the service telemetry.
	//  - "normal" adds some other indicators on top of basic.
	//  - "detailed" adds dimensions and views to the previous levels.
	Level configtelemetry.Level `mapstructure:"level"`

	// Address is the [address]:port that metrics exposition should be bound to.
	Address string `mapstructure:"address"`
}

MetricsConfig exposes the common Telemetry configuration for one component. Experimental: *NOTE* this structure is subject to change or removal in the future.

type Settings

type Settings struct {
	ZapOptions []zap.Option
}

Settings holds configuration for building Telemetry.

type Telemetry

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

func New

func New(_ context.Context, set Settings, cfg Config) (*Telemetry, error)

New creates a new Telemetry from Config.

func (*Telemetry) Logger

func (t *Telemetry) Logger() *zap.Logger

func (*Telemetry) Shutdown

func (t *Telemetry) Shutdown(ctx context.Context) error

func (*Telemetry) TracerProvider

func (t *Telemetry) TracerProvider() trace.TracerProvider

type TracesConfig

type TracesConfig struct {
	// Propagators is a list of TextMapPropagators from the supported propagators list. Currently,
	// tracecontext and  b3 are supported. By default, the value is set to empty list and
	// context propagation is disabled.
	Propagators []string `mapstructure:"propagators"`
}

TracesConfig exposes the common Telemetry configuration for collector's internal spans. Experimental: *NOTE* this structure is subject to change or removal in the future.