feat: add custom port

README.md

@@ -15,6 +15,7 @@ services:
     image: ghcr.io/daltonbr/wol-server:latest
     network_mode: "host"  # Required for WOL broadcast on Linux
     environment:
+      PORT: "5000"  # Optional, defaults to 5000
       WOL_CONFIG: |
         devices:
           desktop:
@@ -76,6 +77,13 @@ curl http://localhost:5000/status
 
 ## Configuration
 
+### Environment Variables
+
+| Variable | Description | Default |
+| -------- | ----------- | ------- |
+| PORT | HTTP server port | 5000 |
+| WOL_CONFIG | YAML configuration (inline) | - |
+
 ### Option 1: Environment Variable (Docker)
 
 Set `WOL_CONFIG` with YAML content (see docker-compose example above).

docs/DEVELOPMENT.md

@@ -23,7 +23,13 @@ cp config.example.yaml ~/.config/wol-server/config.yaml
 go run .
 ```
 
-**Server runs on:** `http://localhost:5000`
+**Server runs on:** `http://localhost:5000` (or set `PORT` environment variable)
+
+**Change port:**
+
+```bash
+PORT=8080 go run .
+```
 
 ## Testing
 
@@ -89,9 +95,16 @@ docker build -t wol-server:local .
 **Run locally built image:**
 
 ```bash
+# Default port (5000)
 docker run --rm -p 5000:5000 \
   -e WOL_CONFIG="$(cat ~/.config/wol-server/config.yaml)" \
   wol-server:local
+
+# Custom port
+docker run --rm -p 8080:8080 \
+  -e PORT=8080 \
+  -e WOL_CONFIG="$(cat ~/.config/wol-server/config.yaml)" \
+  wol-server:local
 ```
 
 ## Publishing to GHCR

main.go

@@ -5,6 +5,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"os"
 	"strconv"
 )
 
@@ -15,10 +16,16 @@ func main() {
 		log.Println("Server will only accept direct parameters (mac/ip/port)")
 	}
 
+	// Get port from environment or use default
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "5000"
+	}
+
 	http.HandleFunc("/wake", handler)
 	http.HandleFunc("/status", statusHandler)
-	fmt.Println("Server is listening on port :5000")
-	log.Fatal(http.ListenAndServe(":5000", nil))
+	fmt.Printf("Server is listening on port :%s\n", port)
+	log.Fatal(http.ListenAndServe(":"+port, nil))
 }
 
 func handler(w http.ResponseWriter, r *http.Request) {