mirror of
https://github.com/itzg/mc-router.git
synced 2024-11-21 11:25:41 +01:00
feat: add prometheus metrics (#342)
This commit is contained in:
Slawomir CALUCH
GitHub
parent
da378b9154
commit
2624e25c94
@ -45,7 +45,7 @@ type Config struct {
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DockerSocket string `default:"unix:///var/run/docker.sock" usage:"Path to Docker socket to use"`
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DockerTimeout int `default:"0" usage:"Timeout configuration in seconds for the Docker integrations"`
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DockerRefreshInterval int `default:"15" usage:"Refresh interval in seconds for the Docker integrations"`
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MetricsBackend string `default:"discard" usage:"Backend to use for metrics exposure/publishing: discard,expvar,influxdb"`
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MetricsBackend string `default:"discard" usage:"Backend to use for metrics exposure/publishing: discard,expvar,influxdb,prometheus"`
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UseProxyProtocol bool `default:"false" usage:"Send PROXY protocol to backend servers"`
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ReceiveProxyProtocol bool `default:"false" usage:"Receive PROXY protocol from backend servers, by default trusts every proxy header that it receives, combine with -trusted-proxies to specify a list of trusted proxies"`
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TrustedProxies []string `usage:"Comma delimited list of CIDR notation IP blocks to trust when receiving PROXY protocol"`
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@ -11,8 +11,11 @@ import (
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discardMetrics "github.com/go-kit/kit/metrics/discard"
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expvarMetrics "github.com/go-kit/kit/metrics/expvar"
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kitinflux "github.com/go-kit/kit/metrics/influx"
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prometheusMetrics "github.com/go-kit/kit/metrics/prometheus"
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influx "github.com/influxdata/influxdb1-client/v2"
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"github.com/itzg/mc-router/server"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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"github.com/sirupsen/logrus"
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)
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@ -25,6 +28,8 @@ func NewMetricsBuilder(backend string, config *MetricsBackendConfig) MetricsBuil
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switch strings.ToLower(backend) {
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case "expvar":
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return &expvarMetricsBuilder{}
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case "prometheus":
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return &prometheusMetricsBuilder{}
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case "influxdb":
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return &influxMetricsBuilder{config: config}
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default:
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@ -41,10 +46,12 @@ func (b expvarMetricsBuilder) Start(ctx context.Context) error {
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}
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func (b expvarMetricsBuilder) BuildConnectorMetrics() *server.ConnectorMetrics {
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c := expvarMetrics.NewCounter("connections")
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return &server.ConnectorMetrics{
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Errors: expvarMetrics.NewCounter("errors").With("subsystem", "connector"),
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BytesTransmitted: expvarMetrics.NewCounter("bytes"),
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Connections: expvarMetrics.NewCounter("connections"),
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ConnectionsFrontend: c,
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ConnectionsBackend: c,
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ActiveConnections: expvarMetrics.NewGauge("active_connections"),
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}
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}
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@ -61,7 +68,8 @@ func (b discardMetricsBuilder) BuildConnectorMetrics() *server.ConnectorMetrics
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return &server.ConnectorMetrics{
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Errors: discardMetrics.NewCounter(),
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BytesTransmitted: discardMetrics.NewCounter(),
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Connections: discardMetrics.NewCounter(),
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ConnectionsFrontend: discardMetrics.NewCounter(),
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ConnectionsBackend: discardMetrics.NewCounter(),
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ActiveConnections: discardMetrics.NewGauge(),
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}
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}
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@ -105,10 +113,58 @@ func (b *influxMetricsBuilder) BuildConnectorMetrics() *server.ConnectorMetrics
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b.metrics = metrics
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c := metrics.NewCounter("mc_router_connections")
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return &server.ConnectorMetrics{
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Errors: metrics.NewCounter("mc_router_errors"),
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BytesTransmitted: metrics.NewCounter("mc_router_transmitted_bytes"),
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Connections: metrics.NewCounter("mc_router_connections"),
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ConnectionsFrontend: c.With("side", "frontend"),
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ConnectionsBackend: c.With("side", "backend"),
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ActiveConnections: metrics.NewGauge("mc_router_connections_active"),
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}
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}
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type prometheusMetricsBuilder struct {
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}
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var pcv *prometheusMetrics.Counter
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func (b prometheusMetricsBuilder) Start(ctx context.Context) error {
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// nothing needed
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return nil
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}
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func (b prometheusMetricsBuilder) BuildConnectorMetrics() *server.ConnectorMetrics {
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pcv = prometheusMetrics.NewCounter(promauto.NewCounterVec(prometheus.CounterOpts{
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Namespace: "mc_router",
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Name: "errors",
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Help: "The total number of errors",
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}, []string{"type"}))
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return &server.ConnectorMetrics{
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Errors: pcv,
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BytesTransmitted: prometheusMetrics.NewCounter(promauto.NewCounterVec(prometheus.CounterOpts{
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Namespace: "mc_router",
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Name: "bytes",
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Help: "The total number of bytes transmitted",
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}, nil)),
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ConnectionsFrontend: prometheusMetrics.NewCounter(promauto.NewCounterVec(prometheus.CounterOpts{
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Namespace: "mc_router",
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Subsystem: "frontend",
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Name: "connections",
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Help: "The total number of connections",
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ConstLabels: prometheus.Labels{"side": "frontend"},
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}, nil)),
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ConnectionsBackend: prometheusMetrics.NewCounter(promauto.NewCounterVec(prometheus.CounterOpts{
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Namespace: "mc_router",
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Subsystem: "backend",
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Name: "connections",
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Help: "The total number of backend connections",
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ConstLabels: prometheus.Labels{"side": "backend"},
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}, []string{"host"})),
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ActiveConnections: prometheusMetrics.NewGauge(promauto.NewGaugeVec(prometheus.GaugeOpts{
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Namespace: "mc_router",
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Name: "active_connections",
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Help: "The number of active connections",
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}, nil)),
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}
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}
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11
go.mod
11
go.mod
@ -12,6 +12,7 @@ require (
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github.com/juju/ratelimit v1.0.2
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github.com/pires/go-proxyproto v0.8.0
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github.com/pkg/errors v0.9.1
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github.com/prometheus/client_golang v1.20.5
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github.com/sirupsen/logrus v1.9.3
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github.com/stretchr/testify v1.9.0
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golang.ngrok.com/ngrok v1.11.0
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@ -22,6 +23,8 @@ require (
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)
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require (
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github.com/beorn7/perks v1.0.1 // indirect
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github.com/cespare/xxhash/v2 v2.3.0 // indirect
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github.com/containerd/log v0.1.0 // indirect
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github.com/distribution/reference v0.5.0 // indirect
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github.com/emicklei/go-restful/v3 v3.9.0 // indirect
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@ -37,11 +40,15 @@ require (
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github.com/inconshreveable/log15/v3 v3.0.0-testing.5 // indirect
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github.com/josharian/intern v1.0.0 // indirect
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github.com/jpillora/backoff v1.0.0 // indirect
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github.com/klauspost/compress v1.17.9 // indirect
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github.com/mailru/easyjson v0.7.7 // indirect
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github.com/mattn/go-colorable v0.1.13 // indirect
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github.com/mattn/go-isatty v0.0.20 // indirect
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github.com/moby/docker-image-spec v1.3.1 // indirect
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github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
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github.com/prometheus/client_model v0.6.1 // indirect
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github.com/prometheus/common v0.55.0 // indirect
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github.com/prometheus/procfs v0.15.1 // indirect
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go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.47.0 // indirect
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go.opentelemetry.io/otel v1.22.0 // indirect
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go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.22.0 // indirect
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@ -64,7 +71,7 @@ require (
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github.com/docker/docker v27.3.1+incompatible
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github.com/docker/go-connections v0.4.0 // indirect
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github.com/docker/go-units v0.4.0 // indirect
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github.com/go-kit/log v0.2.0 // indirect
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github.com/go-kit/log v0.2.1 // indirect
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github.com/go-logfmt/logfmt v0.5.1 // indirect
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github.com/gogo/protobuf v1.3.2 // indirect
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github.com/golang/protobuf v1.5.3 // indirect
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@ -83,7 +90,7 @@ require (
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github.com/pmezard/go-difflib v1.0.0 // indirect
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github.com/spf13/pflag v1.0.5 // indirect
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golang.org/x/net v0.28.0 // indirect
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golang.org/x/oauth2 v0.8.0 // indirect
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golang.org/x/oauth2 v0.21.0 // indirect
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golang.org/x/sys v0.24.0 // indirect
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golang.org/x/term v0.23.0 // indirect
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golang.org/x/time v0.3.0 // indirect
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18
go.sum
18
go.sum
@ -4,8 +4,12 @@ github.com/Microsoft/go-winio v0.5.2 h1:a9IhgEQBCUEk6QCdml9CiJGhAws+YwffDHEMp1VM
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github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
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github.com/VividCortex/gohistogram v1.0.0 h1:6+hBz+qvs0JOrrNhhmR7lFxo5sINxBCGXrdtl/UvroE=
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github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
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github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
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github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
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github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
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github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
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github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
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github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
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github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
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github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
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github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
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@ -29,6 +33,8 @@ github.com/go-kit/kit v0.13.0 h1:OoneCcHKHQ03LfBpoQCUfCluwd2Vt3ohz+kvbJneZAU=
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github.com/go-kit/kit v0.13.0/go.mod h1:phqEHMMUbyrCFCTgH48JueqrM3md2HcAZ8N3XE4FKDg=
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github.com/go-kit/log v0.2.0 h1:7i2K3eKTos3Vc0enKCfnVcgHh2olr/MyfboYq7cAcFw=
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github.com/go-kit/log v0.2.0/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
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github.com/go-kit/log v0.2.1 h1:MRVx0/zhvdseW+Gza6N9rVzU/IVzaeE1SFI4raAhmBU=
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github.com/go-kit/log v0.2.1/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
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github.com/go-logfmt/logfmt v0.5.1 h1:otpy5pqBCBZ1ng9RQ0dPu4PN7ba75Y/aA+UpowDyNVA=
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github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
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github.com/go-logr/logr v1.2.0/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
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@ -95,6 +101,8 @@ github.com/juju/ratelimit v1.0.2 h1:sRxmtRiajbvrcLQT7S+JbqU0ntsb9W2yhSdNN8tWfaI=
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github.com/juju/ratelimit v1.0.2/go.mod h1:qapgC/Gy+xNh9UxzV13HGGl/6UXNN+ct+vwSgWNm/qk=
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github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
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github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
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github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA=
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github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
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github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
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github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
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github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
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@ -137,6 +145,14 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
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github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/prometheus/client_golang v1.20.5 h1:cxppBPuYhUnsO6yo/aoRol4L7q7UFfdm+bR9r+8l63Y=
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github.com/prometheus/client_golang v1.20.5/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
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github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
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github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=
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github.com/prometheus/common v0.55.0 h1:KEi6DK7lXW/m7Ig5i47x0vRzuBsHuvJdi5ee6Y3G1dc=
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github.com/prometheus/common v0.55.0/go.mod h1:2SECS4xJG1kd8XF9IcM1gMX6510RAEL65zxzNImwdc8=
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github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0learggepc=
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github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
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github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
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github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
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github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
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@ -197,6 +213,8 @@ golang.org/x/net v0.28.0 h1:a9JDOJc5GMUJ0+UDqmLT86WiEy7iWyIhz8gz8E4e5hE=
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golang.org/x/net v0.28.0/go.mod h1:yqtgsTWOOnlGLG9GFRrK3++bGOUEkNBoHZc8MEDWPNg=
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golang.org/x/oauth2 v0.8.0 h1:6dkIjl3j3LtZ/O3sTgZTMsLKSftL/B8Zgq4huOIIUu8=
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golang.org/x/oauth2 v0.8.0/go.mod h1:yr7u4HXZRm1R1kBWqr/xKNqewf0plRYoB7sla+BCIXE=
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golang.org/x/oauth2 v0.21.0 h1:tsimM75w1tF/uws5rbeHzIWxEqElMehnc+iW793zsZs=
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golang.org/x/oauth2 v0.21.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
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golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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@ -5,6 +5,7 @@ import (
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"net/http"
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"github.com/gorilla/mux"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/sirupsen/logrus"
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)
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@ -15,6 +16,8 @@ func StartApiServer(apiBinding string) {
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apiRoutes.Path("/vars").Handler(expvar.Handler())
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apiRoutes.Path("/metrics").Handler(promhttp.Handler())
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go func() {
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logrus.WithError(
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http.ListenAndServe(apiBinding, apiRoutes)).Error("API server failed")
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@ -28,7 +28,8 @@ var noDeadline time.Time
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type ConnectorMetrics struct {
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Errors metrics.Counter
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BytesTransmitted metrics.Counter
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Connections metrics.Counter
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ConnectionsFrontend metrics.Counter
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ConnectionsBackend metrics.Counter
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ActiveConnections metrics.Gauge
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}
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@ -158,7 +159,7 @@ func (c *Connector) acceptConnections(ctx context.Context, ln net.Listener, conn
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}
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func (c *Connector) HandleConnection(ctx context.Context, frontendConn net.Conn) {
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c.metrics.Connections.With("side", "frontend").Add(1)
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c.metrics.ConnectionsFrontend.Add(1)
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//noinspection GoUnhandledErrorResult
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defer frontendConn.Close()
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@ -276,7 +277,7 @@ func (c *Connector) findAndConnectBackend(ctx context.Context, frontendConn net.
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return
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}
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c.metrics.Connections.With("side", "backend", "host", resolvedHost).Add(1)
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c.metrics.ConnectionsBackend.With("host", resolvedHost).Add(1)
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c.metrics.ActiveConnections.Set(float64(
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atomic.AddInt32(&c.activeConnections, 1)))
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