Log format flow

.gitignore

@@ -36,4 +36,6 @@ build
 *.key
 *.pem
 *.csr
-dist
+dist
+ngonx-log
+observability

cmd/cli/grpcxy.go

@@ -3,13 +3,13 @@ package cli
 import (
 	"context"
 	"fmt"
-	"log"
 	"net"
 	"os"
 	"os/signal"
 	"strings"
 	"time"
 
+	"github.com/kenriortega/ngonx/pkg/errors"
 	"github.com/kenriortega/ngonx/pkg/logger"
 	"github.com/spf13/cobra"
 	"github.com/talos-systems/grpc-proxy/proxy"
@@ -29,7 +29,7 @@ var grpcCmd = &cobra.Command{
 
 		lis, err := net.Listen("tcp", configFromYaml.GrpcProxy.Listener)
 		if err != nil {
-			log.Fatalf("failed to listen: %v", err)
+			logger.LogError(errors.Errorf("grpc: failed to listen: %v", err).Error())
 		}
 
 		logger.LogInfo(fmt.Sprintf("Proxy running at %q\n", configFromYaml.GrpcProxy.Listener))
@@ -43,7 +43,7 @@ var grpcCmd = &cobra.Command{
 						creds, sslErr := credentials.NewClientTLSFromFile(
 							configFromYaml.GrpcClientCert, "")
 						if sslErr != nil {
-							log.Fatalf("Failed to parse credentials: %v", sslErr)
+							logger.LogError(errors.Errorf("grpc: failed to parse credentials: %v", sslErr).Error())
 						}
 						conn, err := grpc.DialContext(
 							ctx,
@@ -94,7 +94,7 @@ var grpcCmd = &cobra.Command{
 				configFromYaml.GrpcSSL.KeyFile,
 			)
 			if sslErr != nil {
-				log.Fatalf("Failed to parse credentials: %v", sslErr)
+				logger.LogError(errors.Errorf("grpc: failed to parse credentials: %v", sslErr).Error())
 				return
 			}
 			opts = append(opts, grpc.Creds(creds))
@@ -104,7 +104,7 @@ var grpcCmd = &cobra.Command{
 
 		go gracefulShutdown(server)
 		if err := server.Serve(lis); err != nil {
-			log.Fatalf("failed to serve: %v", err)
+			logger.LogError(errors.Errorf("grpc: failed to serve: %v", err).Error())
 		}
 	},
 }
@@ -119,11 +119,12 @@ func gracefulShutdown(server *grpc.Server) {
 
 	signal.Notify(quit, os.Interrupt)
 	sig := <-quit
-	logger.LogInfo(fmt.Sprintf("server is shutting down %s", sig.String()))
+	logger.LogWarn(fmt.Sprintf("grpc: server is shutting down %s", sig.String()))
 
 	_, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
 	server.GracefulStop()
-	logger.LogInfo("server stopped")
+	logger.LogWarn(fmt.Sprintf("grpc: server is shutting down %s", sig.String()))
+
 }

cmd/cli/lb.go

@@ -14,6 +14,7 @@ import (
 
 	handlers "github.com/kenriortega/ngonx/internal/proxy/handlers"
 	"github.com/kenriortega/ngonx/pkg/backoff"
+	"github.com/kenriortega/ngonx/pkg/errors"
 	"github.com/kenriortega/ngonx/pkg/logger"
 	"github.com/spf13/cobra"
 )
@@ -30,27 +31,27 @@ var lbCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		port, err := cmd.Flags().GetInt(flagPort)
 		if err != nil {
-			logger.LogError(err.Error())
+			logger.LogError(errors.Errorf("lb: %v", err).Error())
 		}
 		serverList, err := cmd.Flags().GetString(flagServerList)
 		if err != nil {
 			log.Fatalf(err.Error())
 		}
 		if len(serverList) == 0 {
-			log.Fatal("Please provide one or more backends to load balance")
+			logger.LogError(errors.Errorf("lb: provide one or more backends to load balance %v", err).Error())
 		}
 
 		// parse servers
 		tokens := strings.Split(serverList, ",")
 		for _, tok := range tokens {
 			serverUrl, err := url.Parse(tok)
 			if err != nil {
-				logger.LogError(err.Error())
+				logger.LogError(errors.Errorf("lb: %v", err).Error())
 			}
 
 			proxy := httputil.NewSingleHostReverseProxy(serverUrl)
 			proxy.ErrorHandler = func(writer http.ResponseWriter, request *http.Request, e error) {
-				logger.LogInfo(fmt.Sprintf("[%s] %s\n", serverUrl.Host, e.Error()))
+				logger.LogInfo(fmt.Sprintf("lb: %s %s\n", serverUrl.Host, e.Error()))
 				retry := handlers.GetRetryFromContext(request)
 
 				if retry < 3 {
@@ -66,7 +67,7 @@ var lbCmd = &cobra.Command{
 
 				// if the same request routing for few attempts with different backends, increase the count
 				attempts := handlers.GetAttemptsFromContext(request)
-				logger.LogInfo(fmt.Sprintf("%s(%s) Attempting retry %d\n", request.RemoteAddr, request.URL.Path, attempts))
+				logger.LogInfo(fmt.Sprintf("lb: %s(%s) Attempting retry %d\n", request.RemoteAddr, request.URL.Path, attempts))
 				ctx := context.WithValue(request.Context(), domain.ATTEMPTS, attempts+1)
 				handlers.Lbalancer(writer, request.WithContext(ctx))
 			}
@@ -76,7 +77,7 @@ var lbCmd = &cobra.Command{
 				Alive:        true,
 				ReverseProxy: proxy,
 			})
-			logger.LogInfo(fmt.Sprintf("Configured server: %s\n", serverUrl))
+			logger.LogInfo(fmt.Sprintf("lb: configured server: %s\n", serverUrl))
 		}
 
 		// create http server
@@ -88,9 +89,9 @@ var lbCmd = &cobra.Command{
 		// start health checking
 		go handlers.HealthCheck()
 
-		logger.LogInfo(fmt.Sprintf("Load Balancer started at :%d\n", port))
+		logger.LogInfo(fmt.Sprintf("lb: Load Balancer started at :%d\n", port))
 		if err := server.ListenAndServe(); err != nil {
-			logger.LogError(err.Error())
+			logger.LogError(errors.Errorf("lb: %v", err).Error())
 		}
 
 	},

cmd/cli/proxy.go

@@ -5,6 +5,7 @@ import (
 	handlers "github.com/kenriortega/ngonx/internal/proxy/handlers"
 	services "github.com/kenriortega/ngonx/internal/proxy/services"
 	"github.com/kenriortega/ngonx/pkg/badgerdb"
+	"github.com/kenriortega/ngonx/pkg/errors"
 	"github.com/kenriortega/ngonx/pkg/genkey"
 	"github.com/kenriortega/ngonx/pkg/httpsrv"
 	"github.com/kenriortega/ngonx/pkg/logger"
@@ -18,15 +19,15 @@ var proxyCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		port, err := cmd.Flags().GetInt(flagPort)
 		if err != nil {
-			logger.LogError(err.Error())
+			logger.LogError(errors.Errorf("proxy: %v", err).Error())
 		}
 		generateApiKey, err := cmd.Flags().GetBool(flagGenApiKey)
 		if err != nil {
-			logger.LogError(err.Error())
+			logger.LogError(errors.Errorf("proxy: %v", err).Error())
 		}
 		prevKey, err := cmd.Flags().GetString(flagPrevKey)
 		if err != nil {
-			logger.LogError(err.Error())
+			logger.LogError(errors.Errorf("proxy: %v", err).Error())
 		}
 		// Exporter Metrics
 		go metric.ExposeMetricServer(configFromYaml.ProxyGateway.PortExporterProxy)
@@ -47,16 +48,16 @@ var proxyCmd = &cobra.Command{
 			apiKey := genkey.ApiKeyGenerator(word)
 			_, err := h.Service.SaveSecretKEY(engine, key, apiKey)
 			if err != nil {
-				logger.LogError("genkey: Failed " + err.Error())
+				logger.LogError(errors.Errorf("proxy: failed genkey cmd %v", err).Error())
 			}
-			logger.LogInfo("genkey: Susscefull")
+			logger.LogInfo("proxy: genkey cmd was susscefull")
 		}
 		if prevKey != "" {
 			_, err := h.Service.SaveSecretKEY(engine, key, prevKey)
 			if err != nil {
-				logger.LogError("prevKey: Failed " + err.Error())
+				logger.LogError(errors.Errorf("proxy: failed prevKey cmd %v", err).Error())
 			}
-			logger.LogInfo("prevKey: Susscefull")
+			logger.LogInfo("proxy: prevKey cmd was Susscefull")
 		}
 
 		for _, endpoints := range configFromYaml.ProxyGateway.EnpointsProxy {

cmd/cli/root.go

@@ -13,6 +13,7 @@ import (
 	handlers "github.com/kenriortega/ngonx/internal/mngt/handlers"
 	services "github.com/kenriortega/ngonx/internal/mngt/services"
 	"github.com/kenriortega/ngonx/pkg/config"
+	"github.com/kenriortega/ngonx/pkg/errors"
 	"github.com/kenriortega/ngonx/pkg/healthcheck"
 	"github.com/kenriortega/ngonx/pkg/httpsrv"
 	"github.com/kenriortega/ngonx/pkg/logger"
@@ -70,7 +71,7 @@ func initConfig() {
 	configFromYaml, errConfig = config.LoadConfig(cfgPath, cfgFile)
 
 	if errConfig != nil {
-		logger.LogError("Yaml file not found please run command setup " + errConfig.Error())
+		logger.LogError(errors.Errorf("ngonx: Yaml file not found please run command setup :%v", errConfig).Error())
 	}
 	go StartMngt(configFromYaml)
 
@@ -80,7 +81,7 @@ func StartMngt(config config.Config) {
 
 	stripped, err := fs.Sub(frontend, "ui")
 	if err != nil {
-		logger.LogError(err.Error())
+		logger.LogError(errors.Errorf("ngonx: :%v", err).Error())
 	}
 
 	frontendFS := http.FileServer(http.FS(stripped))
@@ -125,12 +126,12 @@ func StartMngt(config config.Config) {
 
 			endpoints, err := service.ListEndpoints()
 			if err != nil {
-				logger.LogError(err.Error())
+				logger.LogError(errors.Errorf("ngonx: :%v", err).Error())
 			}
 			for _, it := range endpoints {
 				u, err := url.Parse(it.PathUrl)
 				if err != nil {
-					logger.LogError(err.Error())
+					logger.LogError(errors.Errorf("ngonx: :%v", err).Error())
 				}
 				status := healthcheck.IsBackendAlive(u)
 				if status {

cmd/cli/setup.go

@@ -1,8 +1,8 @@
 package cli
 
 import (
-	"log"
-
+	"github.com/kenriortega/ngonx/pkg/errors"
+	"github.com/kenriortega/ngonx/pkg/logger"
 	"github.com/spf13/cobra"
 )
 
@@ -12,7 +12,8 @@ var setupCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		settingsFile, err := cmd.Flags().GetString(flagCfgFile)
 		if err != nil {
-			log.Fatalf(err.Error())
+			logger.LogError(errors.Errorf("ngonx: :%v", err).Error())
+
 		}
 		configFromYaml.CreateSettingFile(settingsFile)
 

go.mod

@@ -21,4 +21,5 @@ require (
 	golang.org/x/net v0.0.0-20210510120150-4163338589ed // indirect
 	golang.org/x/sys v0.0.0-20211031064116-611d5d643895 // indirect
 	google.golang.org/grpc v1.40.0
+	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 )

go.sum

@@ -771,6 +771,8 @@ gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8
 gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
 gopkg.in/ini.v1 v1.62.0 h1:duBzk771uxoUuOlyRLkHsygud9+5lrlGjdFBb4mSKDU=
 gopkg.in/ini.v1 v1.62.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/natefinch/lumberjack.v2 v2.0.0 h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=
+gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

internal/mngt/domain/endpoint.go

@@ -3,6 +3,7 @@ package mngt
 import (
 	"encoding/json"
 
+	"github.com/kenriortega/ngonx/pkg/errors"
 	"github.com/kenriortega/ngonx/pkg/logger"
 	uuid "github.com/satori/go.uuid"
 )
@@ -31,12 +32,14 @@ func NewEnpoint(pathUrl, status string) Endpoint {
 func (ed *Endpoint) FromMapToJSON(data map[string]interface{}) {
 	b, err := json.Marshal(data)
 	if err != nil {
-		logger.LogError(err.Error())
+		logger.LogError(errors.Errorf("ngonx mngt: :%v", err).Error())
+
 	}
 
 	err = json.Unmarshal(b, &ed)
 	if err != nil {
-		logger.LogError(err.Error())
+		logger.LogError(errors.Errorf("ngonx mngt: :%v", err).Error())
+
 	}
 }
 func (ed *Endpoint) ToMAP() (toHashMap map[string]interface{}, err error) {

internal/mngt/handlers/mngt.go

@@ -2,13 +2,13 @@ package mngt
 
 import (
 	"encoding/json"
-	"log"
 	"net/http"
 	"time"
 
 	"github.com/gorilla/websocket"
 	domain "github.com/kenriortega/ngonx/internal/mngt/domain"
 	services "github.com/kenriortega/ngonx/internal/mngt/services"
+	"github.com/kenriortega/ngonx/pkg/errors"
 	"github.com/kenriortega/ngonx/pkg/logger"
 )
 
@@ -36,7 +36,8 @@ func (mh MngtHandler) GetAllEndpoints(w http.ResponseWriter, r *http.Request) {
 	endpoints, err := mh.service.ListEndpoints()
 
 	if err != nil {
-		logger.LogError("handler: " + err.Error())
+		logger.LogError(errors.Errorf("ngonx mngt: :%v", err).Error())
+
 		writeResponse(w, http.StatusInternalServerError, err)
 
 	}
@@ -53,15 +54,15 @@ func (mh MngtHandler) RegisterEndpoint(data map[string]interface{}) {
 	endpoint.FromMapToJSON(data)
 	err := mh.service.RegisterEndpoint(endpoint)
 	if err != nil {
-		logger.LogError(err.Error())
+		logger.LogError(errors.Errorf("ngonx mngt: :%v", err).Error())
 	}
 }
 
 func (mh MngtHandler) UpdateEndpoint(endpoint domain.Endpoint) {
 
 	err := mh.service.UpdateEndpoint(endpoint)
 	if err != nil {
-		logger.LogError(err.Error())
+		logger.LogError(errors.Errorf("ngonx mngt: :%v", err).Error())
 	}
 }
 
@@ -71,7 +72,7 @@ func writeResponse(w http.ResponseWriter, code int, data interface{}) {
 	w.Header().Add("Content-Type", "application/json")
 	err := json.NewEncoder(w).Encode(data)
 	if err != nil {
-		logger.LogError(err.Error())
+		logger.LogError(errors.Errorf("ngonx mngt: :%v", err).Error())
 	}
 
 }
@@ -85,7 +86,7 @@ func (mh MngtHandler) WssocketHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	c, err := upgrader.Upgrade(w, r, nil)
 	if err != nil {
-		log.Print("upgrade:", err)
+		logger.LogError(errors.Errorf("ngonx mngt:  upgrade ws :%v", err).Error())
 		return
 	}
 	defer c.Close()
@@ -94,7 +95,7 @@ func (mh MngtHandler) WssocketHandler(w http.ResponseWriter, r *http.Request) {
 
 		mt, message, err := c.ReadMessage()
 		if err != nil {
-			log.Println("read:", err)
+			logger.LogError(errors.Errorf("ngonx mngt:  read ws :%v", err).Error())
 			break
 		}
 		switch string(message) {
@@ -104,18 +105,17 @@ func (mh MngtHandler) WssocketHandler(w http.ResponseWriter, r *http.Request) {
 				endpoints, _ := mh.service.ListEndpoints()
 				bytes, err := json.Marshal(endpoints)
 				if err != nil {
-					log.Fatal(err)
+					logger.LogError(errors.Errorf("ngonx mngt:  ws :%v", err).Error())
 				}
 				err = c.WriteMessage(mt, bytes)
 				if err != nil {
-					log.Println("write endpoints:", err)
-
+					logger.LogError(errors.Errorf("ngonx mngt: write endpoints ws :%v", err).Error())
 				}
 				durations, err := time.ParseDuration(ds)
 				if err != nil {
 					err = c.WriteMessage(mt, []byte(err.Error()))
 					if err != nil {
-						log.Println("write durations:", err)
+						logger.LogError(errors.Errorf("ngonx mngt: write durations ws :%v", err).Error())
 					}
 				}
 				time.Sleep(durations)
@@ -124,7 +124,7 @@ func (mh MngtHandler) WssocketHandler(w http.ResponseWriter, r *http.Request) {
 		default:
 			err = c.WriteMessage(mt, []byte("CMD not found"))
 			if err != nil {
-				log.Println("write default:", err)
+				logger.LogError(errors.Errorf("ngonx mngt: write default ws :%v", err).Error())
 			}
 		}
 	}