Replace all `rlog` occurrences with the shared logger (#350)

* Replace all `rlog` occurrences with the shared logger

* Use the same log format in `InitLoggerStderrOnly` as well

* Convert one more `log.Fatal` to `logger.Log.Errorf` as well in the `cli`

* Replace `log.` occurrences with `logger.Log.` in `agent`

* Fix `cannot use err (type error)`

* Change the logging level to `DEBUG`

* Replace an `Errorf` with `Fatal`

* Add informative message

agent/main.go

@@ -4,15 +4,7 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"github.com/gin-contrib/static"
-	"github.com/gin-gonic/gin"
-	"github.com/gorilla/websocket"
-	"github.com/romana/rlog"
-	"github.com/up9inc/mizu/shared"
-	"github.com/up9inc/mizu/tap"
-	tapApi "github.com/up9inc/mizu/tap/api"
 	"io/ioutil"
-	"log"
 	"mizuserver/pkg/api"
 	"mizuserver/pkg/controllers"
 	"mizuserver/pkg/models"
@@ -26,6 +18,14 @@ import (
 	"path/filepath"
 	"plugin"
 	"sort"
+
+	"github.com/gin-contrib/static"
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+	"github.com/up9inc/mizu/shared"
+	"github.com/up9inc/mizu/shared/logger"
+	"github.com/up9inc/mizu/tap"
+	tapApi "github.com/up9inc/mizu/tap/api"
 )
 
 var tapperMode = flag.Bool("tap", false, "Run in tapper mode without API")
@@ -40,6 +40,7 @@ var extensions []*tapApi.Extension             // global
 var extensionsMap map[string]*tapApi.Extension // global
 
 func main() {
+	logger.InitLoggerStderrOnly()
 	flag.Parse()
 	loadExtensions()
 
@@ -63,7 +64,7 @@ func main() {
 
 		hostApi(nil)
 	} else if *tapperMode {
-		rlog.Infof("Starting tapper, websocket address: %s", *apiServerAddress)
+		logger.Log.Infof("Starting tapper, websocket address: %s", *apiServerAddress)
 		if *apiServerAddress == "" {
 			panic("API server address must be provided with --api-server-address when using --tap")
 		}
@@ -71,7 +72,7 @@ func main() {
 		tapTargets := getTapTargets()
 		if tapTargets != nil {
 			tap.SetFilterAuthorities(tapTargets)
-			rlog.Infof("Filtering for the following authorities: %v", tap.GetFilterIPs())
+			logger.Log.Infof("Filtering for the following authorities: %v", tap.GetFilterIPs())
 		}
 
 		filteredOutputItemsChannel := make(chan *tapApi.OutputChannelItem)
@@ -84,7 +85,7 @@ func main() {
 		if err != nil {
 			panic(fmt.Sprintf("Error connecting to socket server at %s %v", *apiServerAddress, err))
 		}
-		rlog.Infof("Connected successfully to websocket %s", *apiServerAddress)
+		logger.Log.Infof("Connected successfully to websocket %s", *apiServerAddress)
 
 		go pipeTapChannelToSocket(socketConnection, filteredOutputItemsChannel)
 	} else if *apiServerMode {
@@ -117,7 +118,7 @@ func main() {
 	signal.Notify(signalChan, os.Interrupt)
 	<-signalChan
 
-	rlog.Info("Exiting")
+	logger.Log.Info("Exiting")
 }
 
 func loadExtensions() {
@@ -126,13 +127,13 @@ func loadExtensions() {
 
 	files, err := ioutil.ReadDir(extensionsDir)
 	if err != nil {
-		log.Fatal(err)
+		logger.Log.Fatal(err)
 	}
 	extensions = make([]*tapApi.Extension, len(files))
 	extensionsMap = make(map[string]*tapApi.Extension)
 	for i, file := range files {
 		filename := file.Name()
-		rlog.Infof("Loading extension: %s\n", filename)
+		logger.Log.Infof("Loading extension: %s\n", filename)
 		extension := &tapApi.Extension{
 			Path: path.Join(extensionsDir, filename),
 		}
@@ -157,7 +158,7 @@ func loadExtensions() {
 	})
 
 	for _, extension := range extensions {
-		log.Printf("Extension Properties: %+v\n", extension)
+		logger.Log.Infof("Extension Properties: %+v\n", extension)
 	}
 
 	controllers.InitExtensionsMap(extensionsMap)
@@ -274,7 +275,7 @@ func pipeTapChannelToSocket(connection *websocket.Conn, messageDataChannel <-cha
 	for messageData := range messageDataChannel {
 		marshaledData, err := models.CreateWebsocketTappedEntryMessage(messageData)
 		if err != nil {
-			rlog.Errorf("error converting message to json %v, err: %s, (%v,%+v)", messageData, err, err, err)
+			logger.Log.Errorf("error converting message to json %v, err: %s, (%v,%+v)", messageData, err, err, err)
 			continue
 		}
 
@@ -282,7 +283,7 @@ func pipeTapChannelToSocket(connection *websocket.Conn, messageDataChannel <-cha
 		// and goes into the intermediate WebSocket.
 		err = connection.WriteMessage(websocket.TextMessage, marshaledData)
 		if err != nil {
-			rlog.Errorf("error sending message through socket server %v, err: %s, (%v,%+v)", messageData, err, err, err)
+			logger.Log.Errorf("error sending message through socket server %v, err: %s, (%v,%+v)", messageData, err, err, err)
 			continue
 		}
 	}

agent/pkg/api/main.go

@@ -17,7 +17,7 @@ import (
 	"go.mongodb.org/mongo-driver/bson/primitive"
 
 	"github.com/google/martian/har"
-	"github.com/romana/rlog"
+	"github.com/up9inc/mizu/shared/logger"
 	tapApi "github.com/up9inc/mizu/tap/api"
 
 	"mizuserver/pkg/models"
@@ -31,7 +31,7 @@ func StartResolving(namespace string) {
 	errOut := make(chan error, 100)
 	res, err := resolver.NewFromInCluster(errOut, namespace)
 	if err != nil {
-		rlog.Infof("error creating k8s resolver %s", err)
+		logger.Log.Infof("error creating k8s resolver %s", err)
 		return
 	}
 	ctx := context.Background()
@@ -40,7 +40,7 @@ func StartResolving(namespace string) {
 		for {
 			select {
 			case err := <-errOut:
-				rlog.Infof("name resolving error %s", err)
+				logger.Log.Infof("name resolving error %s", err)
 			}
 		}
 	}()
@@ -59,7 +59,7 @@ func StartReadingEntries(harChannel <-chan *tapApi.OutputChannelItem, workingDir
 
 func startReadingFiles(workingDir string) {
 	if err := os.MkdirAll(workingDir, os.ModePerm); err != nil {
-		rlog.Errorf("Failed to make dir: %s, err: %v", workingDir, err)
+		logger.Log.Errorf("Failed to make dir: %s, err: %v", workingDir, err)
 		return
 	}
 
@@ -76,7 +76,7 @@ func startReadingFiles(workingDir string) {
 		sort.Sort(utils.ByModTime(harFiles))
 
 		if len(harFiles) == 0 {
-			rlog.Infof("Waiting for new files\n")
+			logger.Log.Infof("Waiting for new files\n")
 			time.Sleep(3 * time.Second)
 			continue
 		}
@@ -128,7 +128,7 @@ func resolveIP(connectionInfo *tapApi.ConnectionInfo) (resolvedSource string, re
 		unresolvedSource := connectionInfo.ClientIP
 		resolvedSource = k8sResolver.Resolve(unresolvedSource)
 		if resolvedSource == "" {
-			rlog.Debugf("Cannot find resolved name to source: %s\n", unresolvedSource)
+			logger.Log.Debugf("Cannot find resolved name to source: %s\n", unresolvedSource)
 			if os.Getenv("SKIP_NOT_RESOLVED_SOURCE") == "1" {
 				return
 			}
@@ -136,7 +136,7 @@ func resolveIP(connectionInfo *tapApi.ConnectionInfo) (resolvedSource string, re
 		unresolvedDestination := fmt.Sprintf("%s:%s", connectionInfo.ServerIP, connectionInfo.ServerPort)
 		resolvedDestination = k8sResolver.Resolve(unresolvedDestination)
 		if resolvedDestination == "" {
-			rlog.Debugf("Cannot find resolved name to dest: %s\n", unresolvedDestination)
+			logger.Log.Debugf("Cannot find resolved name to dest: %s\n", unresolvedDestination)
 			if os.Getenv("SKIP_NOT_RESOLVED_DEST") == "1" {
 				return
 			}

agent/pkg/api/socket_routes.go

@@ -2,13 +2,14 @@ package api
 
 import (
 	"errors"
-	"github.com/gin-gonic/gin"
-	"github.com/gorilla/websocket"
-	"github.com/romana/rlog"
-	"github.com/up9inc/mizu/shared/debounce"
 	"net/http"
 	"sync"
 	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+	"github.com/up9inc/mizu/shared/debounce"
+	"github.com/up9inc/mizu/shared/logger"
 )
 
 type EventHandlers interface {
@@ -50,7 +51,7 @@ func WebSocketRoutes(app *gin.Engine, eventHandlers EventHandlers) {
 func websocketHandler(w http.ResponseWriter, r *http.Request, eventHandlers EventHandlers, isTapper bool) {
 	conn, err := websocketUpgrader.Upgrade(w, r, nil)
 	if err != nil {
-		rlog.Errorf("Failed to set websocket upgrade: %v", err)
+		logger.Log.Errorf("Failed to set websocket upgrade: %v", err)
 		return
 	}
 
@@ -71,7 +72,7 @@ func websocketHandler(w http.ResponseWriter, r *http.Request, eventHandlers Even
 	for {
 		_, msg, err := conn.ReadMessage()
 		if err != nil {
-			rlog.Errorf("Error reading message, socket id: %d, error: %v", socketId, err)
+			logger.Log.Errorf("Error reading message, socket id: %d, error: %v", socketId, err)
 			break
 		}
 		eventHandlers.WebSocketMessage(socketId, msg)
@@ -81,7 +82,7 @@ func websocketHandler(w http.ResponseWriter, r *http.Request, eventHandlers Even
 func socketCleanup(socketId int, socketConnection *SocketConnection) {
 	err := socketConnection.connection.Close()
 	if err != nil {
-		rlog.Errorf("Error closing socket connection for socket id %d: %v\n", socketId, err)
+		logger.Log.Errorf("Error closing socket connection for socket id %d: %v\n", socketId, err)
 	}
 
 	websocketIdsLock.Lock()
@@ -92,7 +93,7 @@ func socketCleanup(socketId int, socketConnection *SocketConnection) {
 }
 
 var db = debounce.NewDebouncer(time.Second*5, func() {
-	rlog.Error("Successfully sent to socket")
+	logger.Log.Error("Successfully sent to socket")
 })
 
 func SendToSocket(socketId int, message []byte) error {
@@ -104,7 +105,7 @@ func SendToSocket(socketId int, message []byte) error {
 	var sent = false
 	time.AfterFunc(time.Second*5, func() {
 		if !sent {
-			rlog.Error("Socket timed out")
+			logger.Log.Error("Socket timed out")
 			socketCleanup(socketId, socketObj)
 		}
 	})

agent/pkg/api/socket_server_handlers.go

@@ -10,8 +10,8 @@ import (
 
 	tapApi "github.com/up9inc/mizu/tap/api"
 
-	"github.com/romana/rlog"
 	"github.com/up9inc/mizu/shared"
+	"github.com/up9inc/mizu/shared/logger"
 )
 
 var browserClientSocketUUIDs = make([]int, 0)
@@ -28,10 +28,10 @@ func init() {
 
 func (h *RoutesEventHandlers) WebSocketConnect(socketId int, isTapper bool) {
 	if isTapper {
-		rlog.Infof("Websocket event - Tapper connected, socket ID: %d", socketId)
+		logger.Log.Infof("Websocket event - Tapper connected, socket ID: %d", socketId)
 		providers.TapperAdded()
 	} else {
-		rlog.Infof("Websocket event - Browser socket connected, socket ID: %d", socketId)
+		logger.Log.Infof("Websocket event - Browser socket connected, socket ID: %d", socketId)
 		socketListLock.Lock()
 		browserClientSocketUUIDs = append(browserClientSocketUUIDs, socketId)
 		socketListLock.Unlock()
@@ -40,10 +40,10 @@ func (h *RoutesEventHandlers) WebSocketConnect(socketId int, isTapper bool) {
 
 func (h *RoutesEventHandlers) WebSocketDisconnect(socketId int, isTapper bool) {
 	if isTapper {
-		rlog.Infof("Websocket event - Tapper disconnected, socket ID:  %d", socketId)
+		logger.Log.Infof("Websocket event - Tapper disconnected, socket ID:  %d", socketId)
 		providers.TapperRemoved()
 	} else {
-		rlog.Infof("Websocket event - Browser socket disconnected, socket ID:  %d", socketId)
+		logger.Log.Infof("Websocket event - Browser socket disconnected, socket ID:  %d", socketId)
 		socketListLock.Lock()
 		removeSocketUUIDFromBrowserSlice(socketId)
 		socketListLock.Unlock()
@@ -55,7 +55,7 @@ func BroadcastToBrowserClients(message []byte) {
 		go func(socketId int) {
 			err := SendToSocket(socketId, message)
 			if err != nil {
-				rlog.Errorf("error sending message to socket ID %d: %v", socketId, err)
+				logger.Log.Errorf("error sending message to socket ID %d: %v", socketId, err)
 			}
 		}(socketId)
 	}
@@ -65,14 +65,14 @@ func (h *RoutesEventHandlers) WebSocketMessage(_ int, message []byte) {
 	var socketMessageBase shared.WebSocketMessageMetadata
 	err := json.Unmarshal(message, &socketMessageBase)
 	if err != nil {
-		rlog.Infof("Could not unmarshal websocket message %v\n", err)
+		logger.Log.Infof("Could not unmarshal websocket message %v\n", err)
 	} else {
 		switch socketMessageBase.MessageType {
 		case shared.WebSocketMessageTypeTappedEntry:
 			var tappedEntryMessage models.WebSocketTappedEntryMessage
 			err := json.Unmarshal(message, &tappedEntryMessage)
 			if err != nil {
-				rlog.Infof("Could not unmarshal message of message type %s %v\n", socketMessageBase.MessageType, err)
+				logger.Log.Infof("Could not unmarshal message of message type %s %v\n", socketMessageBase.MessageType, err)
 			} else {
 				// NOTE: This is where the message comes back from the intermediate WebSocket to code.
 				h.SocketOutChannel <- tappedEntryMessage.Data
@@ -81,7 +81,7 @@ func (h *RoutesEventHandlers) WebSocketMessage(_ int, message []byte) {
 			var statusMessage shared.WebSocketStatusMessage
 			err := json.Unmarshal(message, &statusMessage)
 			if err != nil {
-				rlog.Infof("Could not unmarshal message of message type %s %v\n", socketMessageBase.MessageType, err)
+				logger.Log.Infof("Could not unmarshal message of message type %s %v\n", socketMessageBase.MessageType, err)
 			} else {
 				providers.TapStatus.Pods = statusMessage.TappingStatus.Pods
 				BroadcastToBrowserClients(message)
@@ -90,12 +90,12 @@ func (h *RoutesEventHandlers) WebSocketMessage(_ int, message []byte) {
 			var outboundLinkMessage models.WebsocketOutboundLinkMessage
 			err := json.Unmarshal(message, &outboundLinkMessage)
 			if err != nil {
-				rlog.Infof("Could not unmarshal message of message type %s %v\n", socketMessageBase.MessageType, err)
+				logger.Log.Infof("Could not unmarshal message of message type %s %v\n", socketMessageBase.MessageType, err)
 			} else {
 				handleTLSLink(outboundLinkMessage)
 			}
 		default:
-			rlog.Infof("Received socket message of type %s for which no handlers are defined", socketMessageBase.MessageType)
+			logger.Log.Infof("Received socket message of type %s for which no handlers are defined", socketMessageBase.MessageType)
 		}
 	}
 }
@@ -116,9 +116,9 @@ func handleTLSLink(outboundLinkMessage models.WebsocketOutboundLinkMessage) {
 	}
 	marshaledMessage, err := json.Marshal(outboundLinkMessage)
 	if err != nil {
-		rlog.Errorf("Error marshaling outbound link message for broadcasting: %v", err)
+		logger.Log.Errorf("Error marshaling outbound link message for broadcasting: %v", err)
 	} else {
-		rlog.Errorf("Broadcasting outboundlink message %s", string(marshaledMessage))
+		logger.Log.Errorf("Broadcasting outboundlink message %s", string(marshaledMessage))
 		BroadcastToBrowserClients(marshaledMessage)
 	}
 }

agent/pkg/controllers/status_controller.go

@@ -2,15 +2,16 @@ package controllers
 
 import (
 	"encoding/json"
-	"github.com/gin-gonic/gin"
-	"github.com/romana/rlog"
-	"github.com/up9inc/mizu/shared"
 	"mizuserver/pkg/api"
 	"mizuserver/pkg/holder"
 	"mizuserver/pkg/providers"
 	"mizuserver/pkg/up9"
 	"mizuserver/pkg/validation"
 	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/up9inc/mizu/shared"
+	"github.com/up9inc/mizu/shared/logger"
 )
 
 func PostTappedPods(c *gin.Context) {
@@ -23,11 +24,11 @@ func PostTappedPods(c *gin.Context) {
 		c.JSON(http.StatusBadRequest, err)
 		return
 	}
-	rlog.Infof("[Status] POST request: %d tapped pods", len(tapStatus.Pods))
+	logger.Log.Infof("[Status] POST request: %d tapped pods", len(tapStatus.Pods))
 	providers.TapStatus.Pods = tapStatus.Pods
 	message := shared.CreateWebSocketStatusMessage(*tapStatus)
 	if jsonBytes, err := json.Marshal(message); err != nil {
-		rlog.Errorf("Could not Marshal message %v\n", err)
+		logger.Log.Errorf("Could not Marshal message %v\n", err)
 	} else {
 		api.BroadcastToBrowserClients(jsonBytes)
 	}

agent/pkg/database/size_enforcer.go

 package database
 
 import (
-	"log"
 	"os"
 	"strconv"
 	"time"
 
 	"github.com/fsnotify/fsnotify"
-	"github.com/romana/rlog"
 	"github.com/up9inc/mizu/shared"
 	"github.com/up9inc/mizu/shared/debounce"
+	"github.com/up9inc/mizu/shared/logger"
 	"github.com/up9inc/mizu/shared/units"
 	tapApi "github.com/up9inc/mizu/tap/api"
 )
@@ -20,13 +19,13 @@ const defaultMaxDatabaseSizeBytes int64 = 200 * 1000 * 1000
 func StartEnforcingDatabaseSize() {
 	watcher, err := fsnotify.NewWatcher()
 	if err != nil {
-		log.Fatalf("Error creating filesystem watcher for db size enforcement: %v\n", err)
+		logger.Log.Fatalf("Error creating filesystem watcher for db size enforcement: %v\n", err)
 		return
 	}
 
 	maxEntriesDBByteSize, err := getMaxEntriesDBByteSize()
 	if err != nil {
-		log.Fatalf("Error parsing max db size: %v\n", err)
+		logger.Log.Fatalf("Error parsing max db size: %v\n", err)
 		return
 	}
 
@@ -48,14 +47,14 @@ func StartEnforcingDatabaseSize() {
 				if !ok {
 					return // closed channel
 				}
-				rlog.Errorf("filesystem watcher encountered error:%v", err)
+				logger.Log.Errorf("filesystem watcher encountered error:%v", err)
 			}
 		}
 	}()
 
 	err = watcher.Add(DBPath)
 	if err != nil {
-		log.Fatalf("Error adding %s to filesystem watcher for db size enforcement: %v\n", DBPath, err)
+		logger.Log.Fatalf("Error adding %s to filesystem watcher for db size enforcement: %v\n", DBPath, err)
 	}
 }
 
@@ -73,7 +72,7 @@ func getMaxEntriesDBByteSize() (int64, error) {
 func checkFileSize(maxSizeBytes int64) {
 	fileStat, err := os.Stat(DBPath)
 	if err != nil {
-		rlog.Errorf("Error checking %s file size: %v", DBPath, err)
+		logger.Log.Errorf("Error checking %s file size: %v", DBPath, err)
 	} else {
 		if fileStat.Size() > maxSizeBytes {
 			pruneOldEntries(fileStat.Size())
@@ -90,7 +89,7 @@ func pruneOldEntries(currentFileSize int64) {
 
 	rows, err := GetEntriesTable().Limit(10000).Order("id").Rows()
 	if err != nil {
-		rlog.Errorf("Error getting 10000 first db rows: %v", err)
+		logger.Log.Errorf("Error getting 10000 first db rows: %v", err)
 		return
 	}
 
@@ -103,7 +102,7 @@ func pruneOldEntries(currentFileSize int64) {
 		var entry tapApi.MizuEntry
 		err = DB.ScanRows(rows, &entry)
 		if err != nil {
-			rlog.Errorf("Error scanning db row: %v", err)
+			logger.Log.Errorf("Error scanning db row: %v", err)
 			continue
 		}
 
@@ -115,8 +114,8 @@ func pruneOldEntries(currentFileSize int64) {
 		GetEntriesTable().Where(entryIdsToRemove).Delete(tapApi.MizuEntry{})
 		// VACUUM causes sqlite to shrink the db file after rows have been deleted, the db file will not shrink without this
 		DB.Exec("VACUUM")
-		rlog.Errorf("Removed %d rows and cleared %s", len(entryIdsToRemove), units.BytesToHumanReadable(bytesToBeRemoved))
+		logger.Log.Errorf("Removed %d rows and cleared %s", len(entryIdsToRemove), units.BytesToHumanReadable(bytesToBeRemoved))
 	} else {
-		rlog.Error("Found no rows to remove when pruning")
+		logger.Log.Error("Found no rows to remove when pruning")
 	}
 }

agent/pkg/resolver/README.md

@@ -32,7 +32,7 @@ Now you will be able to import `github.com/up9inc/mizu/resolver` in any `.go` fi
 errOut := make(chan error, 100)
 k8sResolver, err := resolver.NewFromOutOfCluster("", errOut)
 if err != nil {
-    rlog.Errorf("error creating k8s resolver %s", err)
+    logger.Log.Errorf("error creating k8s resolver %s", err)
 }
 
 ctx, cancel := context.WithCancel(context.Background())
@@ -40,15 +40,15 @@ k8sResolver.Start(ctx)
 
 resolvedName := k8sResolver.Resolve("10.107.251.91") // will always return `nil` in real scenarios as the internal map takes a moment to populate after `Start` is called
 if resolvedName != nil {
-    rlog.Errorf("resolved 10.107.251.91=%s", *resolvedName)
+    logger.Log.Errorf("resolved 10.107.251.91=%s", *resolvedName)
 } else {
-    rlog.Error("Could not find a resolved name for 10.107.251.91")
+    logger.Log.Error("Could not find a resolved name for 10.107.251.91")
 }
 
 for {
     select {
         case err := <- errOut:
-            rlog.Errorf("name resolving error %s", err)
+            logger.Log.Errorf("name resolving error %s", err)
     }
 }
 ```

agent/pkg/resolver/resolver.go

@@ -5,7 +5,7 @@ import (
 	"errors"
 	"fmt"
 
-	"github.com/romana/rlog"
+	"github.com/up9inc/mizu/shared/logger"
 	k8serrors "k8s.io/apimachinery/pkg/api/errors"
 
 	cmap "github.com/orcaman/concurrent-map"
@@ -157,10 +157,10 @@ func (resolver *Resolver) watchServices(ctx context.Context) error {
 func (resolver *Resolver) saveResolvedName(key string, resolved string, eventType watch.EventType) {
 	if eventType == watch.Deleted {
 		resolver.nameMap.Remove(key)
-		rlog.Infof("setting %s=nil\n", key)
+		logger.Log.Infof("setting %s=nil\n", key)
 	} else {
 		resolver.nameMap.Set(key, resolved)
-		rlog.Infof("setting %s=%s\n", key, resolved)
+		logger.Log.Infof("setting %s=%s\n", key, resolved)
 	}
 }
 
@@ -181,7 +181,7 @@ func (resolver *Resolver) infiniteErrorHandleRetryFunc(ctx context.Context, fun
 			var statusError *k8serrors.StatusError
 			if errors.As(err, &statusError) {
 				if statusError.ErrStatus.Reason == metav1.StatusReasonForbidden {
-					rlog.Infof("Resolver loop encountered permission error, aborting event listening - %v\n", err)
+					logger.Log.Infof("Resolver loop encountered permission error, aborting event listening - %v\n", err)
 					return
 				}
 			}

agent/pkg/rules/rulesHTTP.go

@@ -8,7 +8,7 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/romana/rlog"
+	"github.com/up9inc/mizu/shared/logger"
 
 	"github.com/google/martian/har"
 	"github.com/up9inc/mizu/shared"
@@ -69,7 +69,7 @@ func MatchRequestPolicy(harEntry har.Entry, service string) (resultPolicyToSend
 				if err != nil {
 					continue
 				}
-				rlog.Info(matchValue, rule.Value)
+				logger.Log.Info(matchValue, rule.Value)
 			} else {
 				val := fmt.Sprint(out)
 				matchValue, err = regexp.MatchString(rule.Value, val)

agent/pkg/up9/main.go

@@ -5,12 +5,7 @@ import (
 	"compress/zlib"
 	"encoding/json"
 	"fmt"
-	"github.com/google/martian/har"
-	"github.com/romana/rlog"
-	"github.com/up9inc/mizu/shared"
-	tapApi "github.com/up9inc/mizu/tap/api"
 	"io/ioutil"
-	"log"
 	"mizuserver/pkg/database"
 	"mizuserver/pkg/utils"
 	"net/http"
@@ -18,6 +13,11 @@ import (
 	"regexp"
 	"strings"
 	"time"
+
+	"github.com/google/martian/har"
+	"github.com/up9inc/mizu/shared"
+	"github.com/up9inc/mizu/shared/logger"
+	tapApi "github.com/up9inc/mizu/tap/api"
 )
 
 const (
@@ -112,14 +112,14 @@ func GetAnalyzeInfo() *shared.AnalyzeStatus {
 }
 
 func SyncEntries(syncEntriesConfig *shared.SyncEntriesConfig) error {
-	rlog.Infof("Sync entries - started\n")
+	logger.Log.Infof("Sync entries - started\n")
 
 	var (
 		token, model string
 		guestMode    bool
 	)
 	if syncEntriesConfig.Token == "" {
-		rlog.Infof("Sync entries - creating anonymous token. env %s\n", syncEntriesConfig.Env)
+		logger.Log.Infof("Sync entries - creating anonymous token. env %s\n", syncEntriesConfig.Env)
 		guestToken, err := createAnonymousToken(syncEntriesConfig.Env)
 		if err != nil {
 			return fmt.Errorf("failed creating anonymous token, err: %v", err)
@@ -139,7 +139,7 @@ func SyncEntries(syncEntriesConfig *shared.SyncEntriesConfig) error {
 		return fmt.Errorf("invalid model name, model name: %s", model)
 	}
 
-	rlog.Infof("Sync entries - syncing. token: %s, model: %s, guest mode: %v\n", token, model, guestMode)
+	logger.Log.Infof("Sync entries - syncing. token: %s, model: %s, guest mode: %v\n", token, model, guestMode)
 	go syncEntriesImpl(token, model, syncEntriesConfig.Env, syncEntriesConfig.UploadIntervalSec, guestMode)
 
 	return nil
@@ -152,7 +152,7 @@ func createAnonymousToken(envPrefix string) (*GuestToken, error) {
 	}
 	token := &GuestToken{}
 	if err := getGuestToken(tokenUrl, token); err != nil {
-		rlog.Infof("Failed to get token, %s", err)
+		logger.Log.Infof("Failed to get token, %s", err)
 		return nil, err
 	}
 	return token, nil
@@ -164,7 +164,7 @@ func getGuestToken(url string, target *GuestToken) error {
 		return err
 	}
 	defer resp.Body.Close()
-	rlog.Infof("Got token from the server, starting to json decode... status code: %v", resp.StatusCode)
+	logger.Log.Infof("Got token from the server, starting to json decode... status code: %v", resp.StatusCode)
 	return json.NewDecoder(resp.Body).Decode(target)
 }
 
@@ -182,7 +182,7 @@ func syncEntriesImpl(token string, model string, envPrefix string, uploadInterva
 
 	for {
 		timestampTo := time.Now().UnixNano() / int64(time.Millisecond)
-		rlog.Infof("Getting entries from %v, to %v\n", timestampFrom, timestampTo)
+		logger.Log.Infof("Getting entries from %v, to %v\n", timestampFrom, timestampTo)
 		protocolFilter := "http"
 		entriesArray := database.GetEntriesFromDb(timestampFrom, timestampTo, &protocolFilter)
 
@@ -207,13 +207,13 @@ func syncEntriesImpl(token string, model string, envPrefix string, uploadInterva
 				result = append(result, *harEntry)
 			}
 
-			rlog.Infof("About to upload %v entries\n", len(result))
+			logger.Log.Infof("About to upload %v entries\n", len(result))
 
 			body, jMarshalErr := json.Marshal(result)
 			if jMarshalErr != nil {
 				analyzeInformation.Reset()
-				rlog.Infof("Stopping sync entries")
-				log.Fatal(jMarshalErr)
+				logger.Log.Infof("Stopping sync entries")
+				logger.Log.Fatal(jMarshalErr)
 			}
 
 			var in bytes.Buffer
@@ -236,17 +236,17 @@ func syncEntriesImpl(token string, model string, envPrefix string, uploadInterva
 
 			if _, postErr := http.DefaultClient.Do(req); postErr != nil {
 				analyzeInformation.Reset()
-				rlog.Info("Stopping sync entries")
-				log.Fatal(postErr)
+				logger.Log.Info("Stopping sync entries")
+				logger.Log.Fatal(postErr)
 			}
 			analyzeInformation.SentCount += len(entriesArray)
-			rlog.Infof("Finish uploading %v entries to %s\n", len(entriesArray), GetTrafficDumpUrl(envPrefix, model))
+			logger.Log.Infof("Finish uploading %v entries to %s\n", len(entriesArray), GetTrafficDumpUrl(envPrefix, model))
 
 		} else {
-			rlog.Infof("Nothing to upload")
+			logger.Log.Infof("Nothing to upload")
 		}
 
-		rlog.Infof("Sleeping for %v...\n", sleepTime)
+		logger.Log.Infof("Sleeping for %v...\n", sleepTime)
 		time.Sleep(sleepTime)
 		timestampFrom = timestampTo
 	}

agent/pkg/utils/har.go

@@ -4,12 +4,13 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	"github.com/google/martian/har"
-	"github.com/romana/rlog"
-	"github.com/up9inc/mizu/tap/api"
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/google/martian/har"
+	"github.com/up9inc/mizu/shared/logger"
+	"github.com/up9inc/mizu/tap/api"
 )
 
 // Keep it because we might want cookies in the future
@@ -203,7 +204,7 @@ func NewResponse(response *api.GenericMessage) (harResponse *har.Response, err e
 	if strings.HasPrefix(mimeType.(string), "application/grpc") {
 		status, err = strconv.Atoi(_status)
 		if err != nil {
-			rlog.Errorf("Failed converting status to int %s (%v,%+v)", err, err, err)
+			logger.Log.Errorf("Failed converting status to int %s (%v,%+v)", err, err, err)
 			return nil, errors.New("failed converting response status to int for HAR")
 		}
 	}
@@ -224,13 +225,13 @@ func NewResponse(response *api.GenericMessage) (harResponse *har.Response, err e
 func NewEntry(pair *api.RequestResponsePair) (*har.Entry, error) {
 	harRequest, err := NewRequest(&pair.Request)
 	if err != nil {
-		rlog.Errorf("Failed converting request to HAR %s (%v,%+v)", err, err, err)
+		logger.Log.Errorf("Failed converting request to HAR %s (%v,%+v)", err, err, err)
 		return nil, errors.New("failed converting request to HAR")
 	}
 
 	harResponse, err := NewResponse(&pair.Response)
 	if err != nil {
-		rlog.Errorf("Failed converting response to HAR %s (%v,%+v)", err, err, err)
+		logger.Log.Errorf("Failed converting response to HAR %s (%v,%+v)", err, err, err)
 		return nil, errors.New("failed converting response to HAR")
 	}
 

agent/pkg/utils/truncating_logger.go

@@ -3,10 +3,11 @@ package utils
 import (
 	"context"
 	"fmt"
-	"github.com/romana/rlog"
+	"time"
+
+	loggerShared "github.com/up9inc/mizu/shared/logger"
 	"gorm.io/gorm/logger"
 	"gorm.io/gorm/utils"
-	"time"
 )
 
 // TruncatingLogger implements the gorm logger.Interface interface. Its purpose is to act as gorm's logger while truncating logs to a max of 50 characters to minimise the performance impact
@@ -24,21 +25,21 @@ func (truncatingLogger *TruncatingLogger) Info(_ context.Context, message string
 	if truncatingLogger.LogLevel < logger.Info {
 		return
 	}
-	rlog.Errorf("gorm info: %.150s", message)
+	loggerShared.Log.Errorf("gorm info: %.150s", message)
 }
 
 func (truncatingLogger *TruncatingLogger) Warn(_ context.Context, message string, __ ...interface{}) {
 	if truncatingLogger.LogLevel < logger.Warn {
 		return
 	}
-	rlog.Errorf("gorm warning: %.150s", message)
+	loggerShared.Log.Errorf("gorm warning: %.150s", message)
 }
 
 func (truncatingLogger *TruncatingLogger) Error(_ context.Context, message string, __ ...interface{}) {
 	if truncatingLogger.LogLevel < logger.Error {
 		return
 	}
-	rlog.Errorf("gorm error: %.150s", message)
+	loggerShared.Log.Errorf("gorm error: %.150s", message)
 }
 
 func (truncatingLogger *TruncatingLogger) Trace(ctx context.Context, begin time.Time, fc func() (string, int64), err error) {

agent/pkg/utils/utils.go

@@ -2,8 +2,6 @@ package utils
 
 import (
 	"context"
-	"github.com/gin-gonic/gin"
-	"github.com/romana/rlog"
 	"net/http"
 	"net/url"
 	"os"
@@ -11,6 +9,9 @@ import (
 	"reflect"
 	"syscall"
 	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/up9inc/mizu/shared/logger"
 )
 
 // StartServer starts the server with a graceful shutdown
@@ -28,16 +29,16 @@ func StartServer(app *gin.Engine) {
 
 	go func() {
 		_ = <-signals
-		rlog.Infof("Shutting down...")
+		logger.Log.Infof("Shutting down...")
 		ctx, _ := context.WithTimeout(context.Background(), 5*time.Second)
 		_ = srv.Shutdown(ctx)
 		os.Exit(0)
 	}()
 
 	// Run server.
-	rlog.Infof("Starting the server...")
+	logger.Log.Infof("Starting the server...")
 	if err := app.Run(":8899"); err != nil {
-		rlog.Errorf("Server is not running! Reason: %v", err)
+		logger.Log.Errorf("Server is not running! Reason: %v", err)
 	}
 }
 
@@ -54,14 +55,14 @@ func ReverseSlice(data interface{}) {
 
 func CheckErr(e error) {
 	if e != nil {
-		rlog.Errorf("%v", e)
+		logger.Log.Errorf("%v", e)
 	}
 }
 
 func SetHostname(address, newHostname string) string {
 	replacedUrl, err := url.Parse(address)
 	if err != nil {
-		rlog.Errorf("error replacing hostname to %s in address %s, returning original %v", newHostname, address, err)
+		logger.Log.Errorf("error replacing hostname to %s in address %s, returning original %v", newHostname, address, err)
 		return address
 	}
 	replacedUrl.Host = newHostname

cli/uiUtils/confirmation.go

@@ -3,9 +3,10 @@ package uiUtils
 import (
 	"bufio"
 	"fmt"
-	"log"
 	"os"
 	"strings"
+
+	"github.com/up9inc/mizu/shared/logger"
 )
 
 func AskForConfirmation(s string) bool {
@@ -15,7 +16,7 @@ func AskForConfirmation(s string) bool {
 
 	response, err := reader.ReadString('\n')
 	if err != nil {
-		log.Fatal(err)
+		logger.Log.Fatalf("Error while reading confirmation string, err: %v", err)
 	}
 	response = strings.ToLower(strings.TrimSpace(response))
 	if response == "" || response == "y" || response == "yes" {

shared/logger/logger.go

@@ -28,3 +28,14 @@ func InitLogger(logPath string) {
 
 	logging.SetBackend(backend1Leveled, backend2Formatter)
 }
+
+func InitLoggerStderrOnly() {
+	consoleLog := logging.NewLogBackend(os.Stderr, "", 0)
+
+	backend1Formatter := logging.NewBackendFormatter(consoleLog, format)
+
+	backend1Leveled := logging.AddModuleLevel(consoleLog)
+	backend1Leveled.SetLevel(logging.DEBUG, "")
+
+	logging.SetBackend(backend1Leveled, backend1Formatter)
+}