metricsservice

Documentation

Index

• Constants
• func NewConfigMapBackedDefaultHandler(ctx context.Context) (*metricsHandler, error)
• func NewConfigMapStorage(podNamespace string, configMapClient k8s.ConfigMapInterface) *configMapStorageClient
• func NewDefaultConfigMapStorage(podNamespace string) (*configMapStorageClient, error)
• func NewDefaultMetricsHandler(storage StorageClient, merger *UsageMerger) *metricsHandler
• type CurrentTimeProvider
• type EnvoyMetrics
• type EnvoyUsage
• type GlobalUsage
• type MetricsHandler
• type Options
• type Server
  • func NewServer(opts Options, handler MetricsHandler) *Server
  • func (s *Server) StreamMetrics(envoyMetrics envoymet.MetricsService_StreamMetricsServer) error
• type StorageClient
• type UsageMerger
  • func NewUsageMerger(currentTimeProvider CurrentTimeProvider) *UsageMerger
  • func (u *UsageMerger) MergeUsage(envoyInstanceId string, oldUsage *GlobalUsage, newMetrics *EnvoyMetrics) *GlobalUsage

Constants

const (
	ReadConfigStatPrefix = "read_config"
	PrometheusStatPrefix = "prometheus"

	ServerUptime = "server.uptime"

	TcpStatPrefix      = "tcp"
	HttpStatPrefix     = "http"
	ListenerStatPrefix = "listener"
)

Functions

func NewConfigMapBackedDefaultHandler

func NewConfigMapBackedDefaultHandler(ctx context.Context) (*metricsHandler, error)

get the default metrics handler backed by a config map

func NewConfigMapStorage

func NewConfigMapStorage(podNamespace string, configMapClient k8s.ConfigMapInterface) *configMapStorageClient

func NewDefaultConfigMapStorage

func NewDefaultConfigMapStorage(podNamespace string) (*configMapStorageClient, error)

func NewDefaultMetricsHandler

func NewDefaultMetricsHandler(storage StorageClient, merger *UsageMerger) *metricsHandler

Types

type CurrentTimeProvider

type CurrentTimeProvider func() time.Time

type EnvoyMetrics

type EnvoyMetrics struct {
	HttpRequests   float64
	TcpConnections float64
	Uptime         time.Duration
}

type EnvoyUsage

type EnvoyUsage struct {
	EnvoyMetrics    *EnvoyMetrics
	LastRecordedAt  time.Time
	FirstRecordedAt time.Time
	Active          bool // whether or not we believe this envoy to be active
}

type GlobalUsage

type GlobalUsage struct {
	EnvoyIdToUsage map[string]*EnvoyUsage
}

type MetricsHandler

type MetricsHandler interface {
	HandleMetrics(context.Context, *envoymet.StreamMetricsMessage) error
}

type Options

type Options struct {
	Ctx context.Context
}

type Server

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

server is used to implement envoymet.MetricsServiceServer.

func NewServer

func NewServer(opts Options, handler MetricsHandler) *Server

func (*Server) StreamMetrics

func (s *Server) StreamMetrics(envoyMetrics envoymet.MetricsService_StreamMetricsServer) error

type StorageClient

type StorageClient interface {
	RecordUsage(usage *GlobalUsage) error
	GetUsage() (*GlobalUsage, error)
}

type UsageMerger

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

func NewUsageMerger

func NewUsageMerger(currentTimeProvider CurrentTimeProvider) *UsageMerger

provide a way to get the current time used to make unit tests easier to write and more deterministic

func (*UsageMerger) MergeUsage

func (u *UsageMerger) MergeUsage(envoyInstanceId string, oldUsage *GlobalUsage, newMetrics *EnvoyMetrics) *GlobalUsage