diff --git a/cmd/arouter/arouter.go b/cmd/arouter/arouter.go
index abea7b0..d3838ac 100644
--- a/cmd/arouter/arouter.go
+++ b/cmd/arouter/arouter.go
@@ -36,7 +36,7 @@
 	}
 
 	// Setup logging
-	if _, err := log.SetDefaultLogger(log.JSON, *conf.LogLevel, nil); err != nil {
+	if _, err := log.SetDefaultLogger(log.JSON, *conf.LogLevel, log.Fields{"instanceId": conf.InstanceID}); err != nil {
 		log.With(log.Fields{"error": err}).Fatal("Cannot setup logging")
 	}
 
diff --git a/cmd/arouterd/arouterd.go b/cmd/arouterd/arouterd.go
index 2c6b31e..1c9cd80 100644
--- a/cmd/arouterd/arouterd.go
+++ b/cmd/arouterd/arouterd.go
@@ -82,6 +82,8 @@
 	kafkaHost       = getStrEnv("KAFKA_HOST", "kafka")
 	kafkaPort       = getIntEnv("KAFKA_PORT", 0, math.MaxUint16, 9092)
 	kafkaInstanceID = getStrEnv("KAFKA_INSTANCE_ID", "arouterd")
+
+	instanceID = getStrEnv("HOSTNAME", "arouterd001")
 )
 
 func getIntEnv(key string, min, max, defaultValue int) int {
@@ -411,7 +413,7 @@
 	}
 
 	// Set up logging
-	if _, err := log.SetDefaultLogger(log.JSON, 0, nil); err != nil {
+	if _, err := log.SetDefaultLogger(log.JSON, 0, log.Fields{"instanceId": instanceID}); err != nil {
 		log.With(log.Fields{"error": err}).Fatal("Cannot setup logging")
 	}
 
diff --git a/internal/pkg/afrouter/affinity-router_test.go b/internal/pkg/afrouter/affinity-router_test.go
index 6dfb969..e78b948 100644
--- a/internal/pkg/afrouter/affinity-router_test.go
+++ b/internal/pkg/afrouter/affinity-router_test.go
@@ -34,7 +34,7 @@
 // Unit test initialization
 func init() {
 	// Logger must be configured or bad things happen
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }
 
diff --git a/internal/pkg/afrouter/config.go b/internal/pkg/afrouter/config.go
index 6008199..09e1816 100644
--- a/internal/pkg/afrouter/config.go
+++ b/internal/pkg/afrouter/config.go
@@ -29,6 +29,10 @@
 	"path"
 )
 
+const (
+	default_InstanceID = "arouter001"
+)
+
 func ParseCmd() (*Configuration, error) {
 	config := &Configuration{}
 	cmdParse := flag.NewFlagSet(path.Base(os.Args[0]), flag.ContinueOnError)
@@ -44,11 +48,19 @@
 	}
 	//if(!cmdParse.Parsed()) {
 	//}
+
+	if val, have := os.LookupEnv("HOSTNAME"); have {
+		config.InstanceID = val
+	} else {
+		config.InstanceID = default_InstanceID
+	}
+
 	return config, nil
 }
 
 // Configuration file loading and parsing
 type Configuration struct {
+	InstanceID         string
 	ConfigFile         *string
 	LogLevel           *int
 	GrpcLog            *bool
diff --git a/internal/pkg/afrouter/method-router_test.go b/internal/pkg/afrouter/method-router_test.go
index 2214595..47204dd 100644
--- a/internal/pkg/afrouter/method-router_test.go
+++ b/internal/pkg/afrouter/method-router_test.go
@@ -34,7 +34,7 @@
 // Unit test initialization
 func init() {
 	// Logger must be configured or bad things happen
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }
 
diff --git a/internal/pkg/afrouter/round-robin-router_test.go b/internal/pkg/afrouter/round-robin-router_test.go
index 5d8331e..972832e 100644
--- a/internal/pkg/afrouter/round-robin-router_test.go
+++ b/internal/pkg/afrouter/round-robin-router_test.go
@@ -31,7 +31,7 @@
 )
 
 func init() {
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }
 
diff --git a/internal/pkg/afrouter/router_test.go b/internal/pkg/afrouter/router_test.go
index 2da77e3..940f6cc 100644
--- a/internal/pkg/afrouter/router_test.go
+++ b/internal/pkg/afrouter/router_test.go
@@ -23,7 +23,7 @@
 )
 
 func init() {
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }
 
diff --git a/internal/pkg/afrouter/server_test.go b/internal/pkg/afrouter/server_test.go
index f67f8cb..162937c 100644
--- a/internal/pkg/afrouter/server_test.go
+++ b/internal/pkg/afrouter/server_test.go
@@ -24,7 +24,7 @@
 )
 
 func init() {
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }
 
diff --git a/internal/pkg/afrouter/signals_test.go b/internal/pkg/afrouter/signals_test.go
index 3d72ac4..4033b70 100644
--- a/internal/pkg/afrouter/signals_test.go
+++ b/internal/pkg/afrouter/signals_test.go
@@ -27,7 +27,7 @@
 )
 
 func init() {
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }
 
diff --git a/internal/pkg/afrouter/source-router_test.go b/internal/pkg/afrouter/source-router_test.go
index 2a9f9d2..b33916c 100644
--- a/internal/pkg/afrouter/source-router_test.go
+++ b/internal/pkg/afrouter/source-router_test.go
@@ -29,7 +29,7 @@
 )
 
 func init() {
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }