tracing

Documentation

Overview

Package tracing provides helpers for dealing with Open Tracing and Distributed Tracing.

Index

• Constants
• Variables
• func AddConfigSchema(c interface{ ... }) error
• func RoundTripper(tracer opentracing.Tracer, delegate http.RoundTripper) http.RoundTripper
• type Config
• type JaegerConfig
• type JaegerSampling
• type ProvidersConfig
• type RoundTripperFunc
  • func (rt RoundTripperFunc) RoundTrip(r *http.Request) (*http.Response, error)
• type TracedBCrypt
  • func (b *TracedBCrypt) Compare(ctx context.Context, hash, data []byte) error
  • func (b *TracedBCrypt) Hash(ctx context.Context, data []byte) ([]byte, error)
• type Tracer
  • func New(l *logrusx.Logger, c *Config) (*Tracer, error)
  • func (t *Tracer) Close()
  • func (t *Tracer) IsLoaded() bool
  • func (t *Tracer) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)
  • func (t *Tracer) Tracer() opentracing.Tracer
• type ZipkinConfig

Constants

const (
	// BCryptHashOpName is the operation name for bcrypt hashing operations.
	BCryptHashOpName = "bcrypt.hash"

	// BCryptCompareOpName is the operation name for bcrypt comparation operations.
	BCryptCompareOpName = "bcrypt.compare"

	// BCryptWorkFactorTagName is the operation name for bcrypt workfactor settings.
	BCryptWorkFactorTagName = "bcrypt.workfactor"
)

const ConfigSchemaID = "ory://tracing-config"

Variables

var ConfigSchema string

Functions

func AddConfigSchema

func AddConfigSchema(c interface {
	AddResource(url string, r io.Reader) error
}) error

AddConfigSchema adds the tracing schema to the compiler. The interface is specified instead of `jsonschema.Compiler` to allow the use of any jsonschema library fork or version.

func RoundTripper

func RoundTripper(tracer opentracing.Tracer, delegate http.RoundTripper) http.RoundTripper

Types

type Config

type Config struct {
	ServiceName string           `json:"service_name"`
	Provider    string           `json:"provider"`
	Providers   *ProvidersConfig `json:"providers"`
}

type JaegerConfig

type JaegerConfig struct {
	LocalAgentAddress string          `json:"local_agent_address"`
	Sampling          *JaegerSampling `json:"sampling"`
	Propagation       string          `json:"propagation"`
	MaxTagValueLength int             `json:"max_tag_value_length"`
}

JaegerConfig encapsulates jaeger's configuration.

type JaegerSampling

type JaegerSampling struct {
	Type      string  `json:"type"`
	Value     float64 `json:"value"`
	ServerURL string  `json:"server_url"`
}

type ProvidersConfig

type ProvidersConfig struct {
	Jaeger *JaegerConfig `json:"jaeger"`
	Zipkin *ZipkinConfig `json:"zipkin"`
}

type RoundTripperFunc

type RoundTripperFunc func(req *http.Request) (*http.Response, error)

The RoundTripperFunc type is an adapter to allow the use of ordinary functions as RoundTrippers. If f is a function with the appropriate signature, RountTripperFunc(f) is a RoundTripper that calls f.

func (RoundTripperFunc) RoundTrip

func (rt RoundTripperFunc) RoundTrip(r *http.Request) (*http.Response, error)

RoundTrip implements the RoundTripper interface.

type TracedBCrypt

type TracedBCrypt struct {
	GetWorkFactor func(context.Context) int
}

TracedBCrypt implements the Hasher interface.

func (*TracedBCrypt) Compare

func (b *TracedBCrypt) Compare(ctx context.Context, hash, data []byte) error

Compare returns nil if hash and data match.

func (*TracedBCrypt) Hash

func (b *TracedBCrypt) Hash(ctx context.Context, data []byte) ([]byte, error)

Hash returns the hashed string or an error.

type Tracer

type Tracer struct {
	Config *Config
	// contains filtered or unexported fields
}

Tracer encapsulates tracing abilities.

func New

func New(l *logrusx.Logger, c *Config) (*Tracer, error)

func (*Tracer) Close

func (t *Tracer) Close()

Close closes the tracer.

func (*Tracer) IsLoaded

func (t *Tracer) IsLoaded() bool

IsLoaded returns true if the tracer has been loaded.

func (*Tracer) ServeHTTP

func (t *Tracer) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)

func (*Tracer) Tracer

func (t *Tracer) Tracer() opentracing.Tracer

Tracer returns the wrapped tracer

type ZipkinConfig

type ZipkinConfig struct {
	ServerURL string `json:"server_url"`
}

ZipkinConfig encapsulates zipkin's configuration.