docker build

docker-compose.yml

@@ -4,4 +4,4 @@ services:
   web:
     image: ghcr.io/jurajkubrican/knet/go-web-server:latest
     ports:
-      - 5000:5000/tcp
+      - 54321:54321/tcp

dockerfile

@@ -1,14 +1,30 @@
-# Step 1: Build the Go binary
+# Step 1: Build the Go binary in a separate stage
+FROM golang:1.23 AS builder
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the Go module files
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the rest of the application code
+COPY . .
+
+# Build the Go binary with static linking for Linux
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /server src/main.go
+
+
 FROM scratch
 
 # Set the current working directory inside the container
 WORKDIR /app
 
-# Copy go.mod and go.sum files
+COPY . .
-COPY server ./
+COPY --from=builder server ./
 
 # Command to run the executable
 CMD ["./server"]
 
 # Expose the port on which the Go server will run
-EXPOSE 80
+EXPOSE 54321

src/main.go

@@ -43,5 +43,5 @@ func main() {
 		return c.Render(200, "index", page)
 	})
 
-	e.Logger.Fatal(e.Start(":5000"))
+	e.Logger.Fatal(e.Start(":54321"))
 }