feat: update logging configuration and enhance Docker setup for api_gateway and service modules

Author: MarcoFontana48

api_gateway/Dockerfile

@@ -1,11 +1,11 @@
-FROM golang:1.21-alpine AS builder
+FROM golang:1.24-alpine AS builder
 WORKDIR /app
-COPY main.go .
+COPY api_gateway/go.mod ./
+COPY utils/ ../utils/
+COPY api_gateway/main.go .
 RUN go build -o api_gateway main.go
 
 FROM alpine:latest
-RUN apk --no-cache add ca-certificates
 WORKDIR /root/
 COPY --from=builder /app/api_gateway .
-RUN chmod +x ./api_gateway
 CMD ["./api_gateway"]

api_gateway/go.mod

@@ -1,3 +1,7 @@
 module api_gateway
 
+replace github.com/MarcoFontana48/AUSL-Romagna-CCE-Microservices-Project-Proposal/utils => ../utils
+
 go 1.24
+
+require github.com/MarcoFontana48/AUSL-Romagna-CCE-Microservices-Project-Proposal/utils v0.0.0-00010101000000-000000000000

api_gateway/main.go

@@ -1,9 +1,15 @@
 package main
 
 import (
+	"github.com/MarcoFontana48/AUSL-Romagna-CCE-Microservices-Project-Proposal/utils/log"
 	"log/slog"
 )
 
 func main() {
-	slog.Info("api_gateway module started")
+	log.InitAsJson()
+
+	slog.Info("api_gateway module started", "module", "api_gateway")
+	slog.Debug("api_gateway module started", "module", "api_gateway")
+	slog.Warn("api_gateway module warning", "module", "api_gateway")
+	slog.Error("api_gateway module error", "module", "api_gateway")
 }

docker-compose.yml

@@ -1,16 +1,18 @@
 services:
-  api-gateway:
-    build:
-      context: ./api_gateway
-      dockerfile: Dockerfile
-    container_name: api_gateway
-    environment:
-      - LOG_LEVEL=info
-
   service:
     build:
-      context: ./service
-      dockerfile: Dockerfile
+      context: .
+      dockerfile: service/Dockerfile
     container_name: service
     environment:
       - LOG_LEVEL=debug
+      - LOG_ADD_SOURCE=true
+
+  api-gateway:
+    build:
+      context: .
+      dockerfile: api_gateway/Dockerfile
+    container_name: api_gateway
+    environment:
+      - LOG_LEVEL=info
+      - LOG_ADD_SOURCE=true

service/Dockerfile

@@ -1,11 +1,11 @@
-FROM golang:1.21-alpine AS builder
+FROM golang:1.24-alpine AS builder
 WORKDIR /app
-COPY main.go .
+COPY service/go.mod ./
+COPY utils/ ../utils/
+COPY service/main.go .
 RUN go build -o service main.go
 
 FROM alpine:latest
-RUN apk --no-cache add ca-certificates
 WORKDIR /root/
 COPY --from=builder /app/service .
-RUN chmod +x ./service
 CMD ["./service"]

service/go.mod

@@ -1,5 +1,7 @@
 module service
 
-replace github.com/MarcoFontana48/utils => ../utils
+replace github.com/MarcoFontana48/AUSL-Romagna-CCE-Microservices-Project-Proposal/utils => ../utils
 
 go 1.24
+
+require github.com/MarcoFontana48/AUSL-Romagna-CCE-Microservices-Project-Proposal/utils v0.0.0-00010101000000-000000000000

service/main.go

@@ -1,5 +1,15 @@
 package main
 
+import (
+	"github.com/MarcoFontana48/AUSL-Romagna-CCE-Microservices-Project-Proposal/utils/log"
+	"log/slog"
+)
+
 func main() {
-	//TODO
+	log.InitAsJson()
+
+	slog.Info("service module started", "module", "service")
+	slog.Debug("service module started", "module", "service")
+	slog.Warn("service module warning", "module", "service")
+	slog.Error("service module error", "module", "service")
 }

utils/go.mod

@@ -1,3 +1,3 @@
-module utils
+module github.com/MarcoFontana48/AUSL-Romagna-CCE-Microservices-Project-Proposal/utils
 
 go 1.24

utils/log.go utils/log/log.goutils/log.go renamed to utils/log/log.go

@@ -3,12 +3,18 @@ package log
 import (
 	"log/slog"
 	"os"
+	"strconv"
 	"strings"
 )
 
-func Init() {
-	levelStr := os.Getenv("LOG_LEVEL")
+func InitAsJson() {
+	addSource, err := strconv.ParseBool(os.Getenv("LOG_ADD_SOURCE"))
+	if err != nil {
+		addSource = false // default to false if parsing fails
+	}
+
 	var level slog.Level
+	levelStr := os.Getenv("LOG_LEVEL")
 	switch strings.ToLower(levelStr) {
 	case "debug":
 		level = slog.LevelDebug
@@ -21,7 +27,9 @@ func Init() {
 	}
 
 	handler := slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
-		Level: level,
+		Level:     level,
+		AddSource: addSource, // includes function, file and line number in log entries (default: false)
 	})
+
 	slog.SetDefault(slog.New(handler))
 }