add prometheus exporter

cmd/serve.go

@@ -41,9 +41,11 @@ var serveCmd = &cobra.Command{
 
 		if config.Webserver.Enable {
 			log.Infof("starting webserver on %s", config.Webserver.Bind)
-			srv := webserver.New(config.Webserver.Bind, config.Webserver.Webroot)
+			srv := webserver.New(config.Webserver, nodes)
 			go webserver.Start(srv)
 			defer srv.Close()
+		} else if prom := config.Webserver.Prometheus; prom != nil && prom.Enable {
+			log.Error("to enable prometheus exporter, please enable webserver ")
 		}
 
 		if config.Respondd.Enable {

config_example.toml

@@ -54,6 +54,16 @@ enable  = false
 bind    = "127.0.0.1:8080"
 webroot = "/var/www/html/meshviewer"
 
+[webserver.prometheus]
+# need webserver
+enable   = false
+disable_labels = [
+	# "hostname",
+	# "owner",
+	# "location",
+]
+
+
 
 [nodes]
 # Cache file

go.mod

@@ -14,20 +14,29 @@ require (
 	github.com/spf13/cobra v1.4.0
 	github.com/stretchr/testify v1.7.1
 	github.com/tidwall/gjson v1.14.0
-	golang.org/x/sys v0.0.0-20220412211240-33da011f77ad
+	golang.org/x/sys v0.0.0-20220712014510-0a85c31ab51e
 )
 
 require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/onsi/ginkgo v1.16.5 // indirect
 	github.com/onsi/gomega v1.19.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_golang v1.12.2 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.7.3 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.0 // indirect
 	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 // indirect
 	golang.org/x/term v0.0.0-20220411215600-e5f449aeb171 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
 	gopkg.in/fgrosse/graphigo.v2 v2.0.0-20151220153422-55a0a92a7030 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 )

webserver/config.go

@@ -1,7 +1,8 @@
 package webserver
 
 type Config struct {
-	Enable  bool   `toml:"enable"`
-	Bind    string `toml:"bind"`
-	Webroot string `toml:"webroot"`
+	Enable     bool        `toml:"enable"`
+	Bind       string      `toml:"bind"`
+	Webroot    string      `toml:"webroot"`
+	Prometheus *Prometheus `toml:"prometheus"`
 }