querytee

Documentation

Index

• type InstrumentationServer
  • func NewInstrumentationServer(port int, registry *prometheus.Registry) *InstrumentationServer
  • func (s *InstrumentationServer) Start() error
  • func (s *InstrumentationServer) Stop()
• type Proxy
  • func NewProxy(cfg ProxyConfig, logger log.Logger, readRoutes, writeRoutes []Route, ...) (*Proxy, error)
  • func (p *Proxy) Await()
  • func (p *Proxy) Endpoint() string
  • func (p *Proxy) Start() error
  • func (p *Proxy) Stop() error
• type ProxyBackend
  • func NewProxyBackend(name string, endpoint *url.URL, timeout time.Duration, preferred bool) *ProxyBackend
  • func (b *ProxyBackend) ForwardRequest(orig *http.Request, body io.ReadCloser) (int, []byte, error)
• type ProxyConfig
  • func (cfg *ProxyConfig) RegisterFlags(f *flag.FlagSet)
• type ProxyEndpoint
  • func NewProxyEndpoint(backends []*ProxyBackend, routeName string, metrics *ProxyMetrics, ...) *ProxyEndpoint
  • func (p *ProxyEndpoint) ServeHTTP(w http.ResponseWriter, r *http.Request)
• type ProxyMetrics
  • func NewProxyMetrics(registerer prometheus.Registerer) *ProxyMetrics
• type ResponsesComparator
• type Route
• type SampleComparisonOptions
• type SamplesComparator
  • func NewSamplesComparator(opts SampleComparisonOptions) *SamplesComparator
  • func (s *SamplesComparator) Compare(expectedResponse, actualResponse []byte) error
  • func (s *SamplesComparator) RegisterSamplesType(samplesType string, comparator SamplesComparatorFunc)
• type SamplesComparatorFunc
• type SamplesResponse

Types

type InstrumentationServer

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

func NewInstrumentationServer

func NewInstrumentationServer(port int, registry *prometheus.Registry) *InstrumentationServer

NewInstrumentationServer returns a server exposing Prometheus metrics.

func (*InstrumentationServer) Start

func (s *InstrumentationServer) Start() error

Start the instrumentation server.

func (*InstrumentationServer) Stop

func (s *InstrumentationServer) Stop()

Stop closes the instrumentation server.

type Proxy

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

func NewProxy

func NewProxy(cfg ProxyConfig, logger log.Logger, readRoutes, writeRoutes []Route, registerer prometheus.Registerer) (*Proxy, error)

func (*Proxy) Await

func (p *Proxy) Await()

func (*Proxy) Endpoint

func (p *Proxy) Endpoint() string

func (*Proxy) Start

func (p *Proxy) Start() error

func (*Proxy) Stop

func (p *Proxy) Stop() error

type ProxyBackend

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

ProxyBackend holds the information of a single backend.

func NewProxyBackend

func NewProxyBackend(name string, endpoint *url.URL, timeout time.Duration, preferred bool) *ProxyBackend

NewProxyBackend makes a new ProxyBackend

func (*ProxyBackend) ForwardRequest

func (b *ProxyBackend) ForwardRequest(orig *http.Request, body io.ReadCloser) (int, []byte, error)

type ProxyConfig

type ProxyConfig struct {
	ServerServicePort              int
	BackendEndpoints               string
	PreferredBackend               string
	BackendReadTimeout             time.Duration
	CompareResponses               bool
	DisableBackendReadProxy        string
	ValueComparisonTolerance       float64
	UseRelativeError               bool
	PassThroughNonRegisteredRoutes bool
	SkipRecentSamples              time.Duration
}

func (*ProxyConfig) RegisterFlags

func (cfg *ProxyConfig) RegisterFlags(f *flag.FlagSet)

type ProxyEndpoint

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

func NewProxyEndpoint

func NewProxyEndpoint(backends []*ProxyBackend, routeName string, metrics *ProxyMetrics, logger log.Logger, comparator ResponsesComparator) *ProxyEndpoint

func (*ProxyEndpoint) ServeHTTP

func (p *ProxyEndpoint) ServeHTTP(w http.ResponseWriter, r *http.Request)

type ProxyMetrics

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

func NewProxyMetrics

func NewProxyMetrics(registerer prometheus.Registerer) *ProxyMetrics

type ResponsesComparator

type ResponsesComparator interface {
	Compare(expected, actual []byte) error
}

type Route

type Route struct {
	Path               string
	RouteName          string
	Methods            []string
	ResponseComparator ResponsesComparator
}

type SampleComparisonOptions

type SampleComparisonOptions struct {
	Tolerance         float64
	UseRelativeError  bool
	SkipRecentSamples time.Duration
}

type SamplesComparator

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

func NewSamplesComparator

func NewSamplesComparator(opts SampleComparisonOptions) *SamplesComparator

func (*SamplesComparator) Compare

func (s *SamplesComparator) Compare(expectedResponse, actualResponse []byte) error

func (*SamplesComparator) RegisterSamplesType

func (s *SamplesComparator) RegisterSamplesType(samplesType string, comparator SamplesComparatorFunc)

RegisterSamplesComparator helps with registering custom sample types

type SamplesComparatorFunc

type SamplesComparatorFunc func(expected, actual json.RawMessage, opts SampleComparisonOptions) error

SamplesComparatorFunc helps with comparing different types of samples coming from /api/v1/query and /api/v1/query_range routes.

type SamplesResponse

type SamplesResponse struct {
	Status string
	Data   struct {
		ResultType string
		Result     json.RawMessage
	}
}