fix: reduced docker image size

Dockerfile

@@ -1,24 +1,29 @@
-#base image
-FROM golang:1.22
+# Use the official Golang image to build the application
+FROM golang:1.22 AS builder
 
-#create work directory
+# Set the Current Working Directory inside the container
 WORKDIR /app
 
-#in order to download modules, we need go.mod and go.sum in the work directory
+# Copy go.mod and go.sum files
 COPY go.mod go.sum ./
 
-#download modules
+# Download all dependencies. Dependencies will be cached if the go.mod and go.sum files are not changed
 RUN go mod download
 
-#copy source code
-COPY ./ ./
+# Copy the source from the current directory to the Working Directory inside the container
+COPY . .
 
-#WORKDIR /r2-api-go
-
-#compile
+# Build the Go app
 RUN CGO_ENABLED=0 GOOS=linux go build -o /r2-api-go
 
+# Start a new stage from scratch
+FROM alpine:latest
+
+# Copy the Pre-built binary file from the previous stage
+COPY --from=builder /r2-api-go /r2-api-go
+
+# Expose port 8080 to the outside world
 EXPOSE 8080
 
-#what command to run, when container is started from this image
+# Command to run the executable
 CMD ["/r2-api-go"]

main.go

@@ -15,6 +15,7 @@ func main() {
 	config.Init()
 
 	r := gin.Default()
+	r.Use(gin.Logger())
 	config := cors.DefaultConfig()
 	config.AllowAllOrigins = true //TODO: config, do not allow all
 	config.AllowMethods = []string{"POST", "GET", "PUT", "OPTIONS"}