Move code to pkg

pkg/types/metrics.go

@@ -0,0 +1,82 @@
+package types
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// Metrics provides options to expose and send Traefik metrics to different third party monitoring systems
+type Metrics struct {
+	Prometheus *Prometheus `description:"Prometheus metrics exporter type" export:"true"`
+	Datadog    *Datadog    `description:"DataDog metrics exporter type" export:"true"`
+	StatsD     *Statsd     `description:"StatsD metrics exporter type" export:"true"`
+	InfluxDB   *InfluxDB   `description:"InfluxDB metrics exporter type"`
+}
+
+// Prometheus can contain specific configuration used by the Prometheus Metrics exporter
+type Prometheus struct {
+	Buckets     Buckets  `description:"Buckets for latency metrics" export:"true"`
+	EntryPoint  string   `description:"EntryPoint" export:"true"`
+	Middlewares []string `description:"Middlewares" export:"true"`
+}
+
+// Datadog contains address and metrics pushing interval configuration
+type Datadog struct {
+	Address      string `description:"DataDog's address"`
+	PushInterval string `description:"DataDog push interval" export:"true"`
+}
+
+// Statsd contains address and metrics pushing interval configuration
+type Statsd struct {
+	Address      string `description:"StatsD address"`
+	PushInterval string `description:"StatsD push interval" export:"true"`
+}
+
+// InfluxDB contains address, login and metrics pushing interval configuration
+type InfluxDB struct {
+	Address         string `description:"InfluxDB address"`
+	Protocol        string `description:"InfluxDB address protocol (udp or http)"`
+	PushInterval    string `description:"InfluxDB push interval" export:"true"`
+	Database        string `description:"InfluxDB database used when protocol is http" export:"true"`
+	RetentionPolicy string `description:"InfluxDB retention policy used when protocol is http" export:"true"`
+	Username        string `description:"InfluxDB username (only with http)" export:"true"`
+	Password        string `description:"InfluxDB password (only with http)" export:"true"`
+}
+
+// Statistics provides options for monitoring request and response stats
+type Statistics struct {
+	RecentErrors int `description:"Number of recent errors logged" export:"true"`
+}
+
+// Buckets holds Prometheus Buckets
+type Buckets []float64
+
+// Set adds strings elem into the the parser
+// it splits str on "," and ";" and apply ParseFloat to string
+func (b *Buckets) Set(str string) error {
+	fargs := func(c rune) bool {
+		return c == ',' || c == ';'
+	}
+	// get function
+	slice := strings.FieldsFunc(str, fargs)
+	for _, bucket := range slice {
+		bu, err := strconv.ParseFloat(bucket, 64)
+		if err != nil {
+			return err
+		}
+		*b = append(*b, bu)
+	}
+	return nil
+}
+
+// Get []float64
+func (b *Buckets) Get() interface{} { return *b }
+
+// String return slice in a string
+func (b *Buckets) String() string { return fmt.Sprintf("%v", *b) }
+
+// SetValue sets []float64 into the parser
+func (b *Buckets) SetValue(val interface{}) {
+	*b = val.(Buckets)
+}