fix: Maintenance and #1

.gitignore

@@ -13,3 +13,4 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+factorio-port-fixer

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.19 as builder
+FROM golang:1.22-alpine as builder
 
 WORKDIR /app
 
@@ -10,10 +10,16 @@ ADD . /app/
 
 RUN CGO_ENABLE=0 go build -o /app/factorio-port-fixer
 
-FROM gcr.io/distroless/base-debian11
+FROM alpine:3.20.3
 
-EXPOSE 34197/udp
+RUN apk add --no-cache ca-certificates curl
+
+EXPOSE 34197/udp 34197/tcp
 
 COPY --from=builder /app/factorio-port-fixer /factorio-port-fixer
 
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
+    CMD curl --fail http://localhost:34197/health || exit 1
+
 CMD ["/factorio-port-fixer", "remote"]
+

cmd/local.go

@@ -65,10 +65,11 @@ var localCmd = &cobra.Command{
 
 		e.GET("/health", func(c echo.Context) error {
 			{
+				remoteClientIp := c.RealIP()
+
 				addr := net.UDPAddr{IP: net.ParseIP(ip)}
 
-				ip := c.RealIP()
-				remote := &net.UDPAddr{Port: int(remotePort), IP: net.ParseIP(ip)}
+				remote := &net.UDPAddr{Port: int(localPort), IP: net.ParseIP("127.0.0.1")}
 
 				conn, err := net.ListenUDP("udp", &addr)
 				if err != nil {
@@ -89,9 +90,11 @@ var localCmd = &cobra.Command{
 				if wrerr != nil {
 					sugar.Errorf("net.WriteTo() error: %s\n", wrerr)
 				} else {
-					sugar.Infow("Wrote to socket",
+					sugar.Debugw("Wrote to socket",
 						"Bytes", cc,
-						"Remote", remote)
+						"Remote", remote,
+						"RemoteClientIP", remoteClientIp,
+					)
 				}
 
 				b := make([]byte, 2048)
@@ -103,7 +106,7 @@ var localCmd = &cobra.Command{
 					sugar.Error("net.ReadFromUDP() error: %s", rderr)
 					return c.String(http.StatusInternalServerError, rderr.Error())
 				} else {
-					sugar.Infow("Read from socket",
+					sugar.Debugw("Read from socket",
 						"Bytes", cc,
 						"Remote", remote)
 				}
@@ -123,7 +126,7 @@ var localCmd = &cobra.Command{
 
 		g.Go(func() error {
 			for {
-				sugar.Infow("Accepting a new packet",
+				sugar.Debugw("Accepting a new packet",
 					"IP", ip,
 					"Port", port)
 
@@ -132,7 +135,7 @@ var localCmd = &cobra.Command{
 					sugar.Errorf("net.ReadFromUDP() error: %s", rderr)
 					return rderr
 				} else {
-					sugar.Infow("Read from socket",
+					sugar.Debugw("Read from socket",
 						"Bytes", cc,
 						"Remote", remote)
 				}
@@ -170,7 +173,7 @@ var localCmd = &cobra.Command{
 				if wrerr != nil {
 					sugar.Errorf("net.WriteTo() error: %s\n", wrerr)
 				} else {
-					sugar.Infow("Wrote to socket",
+					sugar.Debugw("Wrote to socket",
 						"Bytes", cc,
 						"Remote", remote)
 				}

cmd/ping.go

@@ -65,7 +65,7 @@ var pingCmd = &cobra.Command{
 		if wrerr != nil {
 			sugar.Errorf("net.WriteTo() error: %s\n", wrerr)
 		} else {
-			sugar.Infow("Wrote to socket",
+			sugar.Debugw("Wrote to socket",
 				"Bytes", cc,
 				"Remote", remote)
 		}
@@ -78,7 +78,7 @@ var pingCmd = &cobra.Command{
 		if rderr != nil {
 			sugar.Fatalf("net.ReadFromUDP() error: %s", rderr)
 		} else {
-			sugar.Infow("Read from socket",
+			sugar.Debugw("Read from socket",
 				"Bytes", cc,
 				"Remote", remote)
 		}

cmd/remote.go

@@ -64,10 +64,11 @@ var remoteCmd = &cobra.Command{
 
 		e.GET("/health", func(c echo.Context) error {
 			{
+				remoteClientIp := c.RealIP()
+
 				addr := net.UDPAddr{IP: net.ParseIP(ip)}
 
-				ip := c.RealIP()
-				remote := &net.UDPAddr{Port: int(remotePort), IP: net.ParseIP(ip)}
+				remote := &net.UDPAddr{Port: int(localPort), IP: net.ParseIP("127.0.0.1")}
 
 				conn, err := net.ListenUDP("udp", &addr)
 				if err != nil {
@@ -88,9 +89,11 @@ var remoteCmd = &cobra.Command{
 				if wrerr != nil {
 					sugar.Errorf("net.WriteTo() error: %s\n", wrerr)
 				} else {
-					sugar.Infow("Wrote to socket",
+					sugar.Debugw("Wrote to socket",
 						"Bytes", cc,
-						"Remote", remote)
+						"Remote", remote,
+						"RemoteClientIP", remoteClientIp,
+					)
 				}
 
 				b := make([]byte, 2048)
@@ -102,7 +105,7 @@ var remoteCmd = &cobra.Command{
 					sugar.Error("net.ReadFromUDP() error: %s", rderr)
 					return c.String(http.StatusInternalServerError, rderr.Error())
 				} else {
-					sugar.Infow("Read from socket",
+					sugar.Debugw("Read from socket",
 						"Bytes", cc,
 						"Remote", remote)
 				}
@@ -122,7 +125,7 @@ var remoteCmd = &cobra.Command{
 
 		g.Go(func() error {
 			for {
-				sugar.Infow("Accepting a new packet",
+				sugar.Debugw("Accepting a new packet",
 					"IP", ip,
 					"Port", port)
 
@@ -131,7 +134,7 @@ var remoteCmd = &cobra.Command{
 					sugar.Errorf("net.ReadFromUDP() error: %s", rderr)
 					return rderr
 				} else {
-					sugar.Infow("Read from socket",
+					sugar.Debugw("Read from socket",
 						"Bytes", cc,
 						"Remote", remote)
 				}
@@ -163,7 +166,7 @@ var remoteCmd = &cobra.Command{
 				if wrerr != nil {
 					sugar.Errorf("net.WriteTo() error: %s\n", wrerr)
 				} else {
-					sugar.Infow("Wrote to socket",
+					sugar.Debugw("Wrote to socket",
 						"Bytes", cc,
 						"Remote", remote)
 				}

docker-compose.yaml

@@ -1,7 +1,17 @@
-version: '3'
+version: "3"
 services:
-  factorio:
+  factorio-port-fixer:
     image: ghcr.io/zcube/factorio-port-fixer:latest
+    build:
+      context: .
+      dockerfile: Dockerfile
     restart: unless-stopped
     ports:
-     - "34197:34197/udp"
+      - "34197:34197/udp"
+      - "34197:34197/tcp"
+    healthcheck:
+      test: curl --fail 127.0.0.1:34197/health || exit 1
+      interval: 20s
+      retries: 5
+      start_period: 20s
+      timeout: 10s

go.mod

@@ -1,28 +1,27 @@
 module github.com/zcube/factorio-port-fixer
 
-go 1.19
+go 1.22
 
 require (
-	github.com/labstack/echo/v4 v4.10.0
+	github.com/labstack/echo/v4 v4.12.0
 	github.com/rdegges/go-ipify v0.0.0-20150526035502-2d94a6a86c40
-	github.com/spf13/cobra v1.6.1
-	go.uber.org/zap v1.24.0
-	golang.org/x/sync v0.1.0
+	github.com/spf13/cobra v1.8.1
+	go.uber.org/zap v1.27.0
+	golang.org/x/sync v0.9.0
 )
 
 require (
-	github.com/inconshreveable/mousetrap v1.0.1 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jpillora/backoff v1.0.0 // indirect
-	github.com/labstack/gommon v0.4.0 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	go.uber.org/atomic v1.7.0 // indirect
-	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/crypto v0.2.0 // indirect
-	golang.org/x/net v0.4.0 // indirect
-	golang.org/x/sys v0.3.0 // indirect
-	golang.org/x/text v0.5.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/crypto v0.29.0 // indirect
+	golang.org/x/net v0.30.0 // indirect
+	golang.org/x/sys v0.27.0 // indirect
+	golang.org/x/text v0.20.0 // indirect
 )

go.sum

@@ -1,64 +1,52 @@
-github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
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