script systemd auto restart on crash

docs/binary.md

@@ -22,6 +22,8 @@
 
 3. Start editing config files in `http://<ip>:8080`
 
+4. Check logs / status with `systemctl status go-proxy`
+
 ## Setup (alternative method)
 
 1. Download the latest release and extract somewhere

setup-binary.sh

@@ -91,11 +91,15 @@ mkdir -p /etc/systemd/system
 cat <<EOF > /etc/systemd/system/go-proxy.service
 [Unit]
 Description=go-proxy reverse proxy
-After=network.target
+After=network-online.target
+Wants=network-online.target systemd-networkd-wait-online.service
 [Service]
 Type=simple
 ExecStart=${APP_ROOT}/bin/go-proxy
 WorkingDirectory=${APP_ROOT}
+Environment="IS_SYSTEMD=1"
+Restart=on-failure
+RestartSec=1s
 [Install]
 WantedBy=multi-user.target
 EOF

src/go-proxy/constants.go

@@ -175,3 +175,8 @@ var logLevel = func() logrus.Level {
 	}
 	return logrus.GetLevel()
 }()
+
+var isRunningAsService = func() bool {
+	v := os.Getenv("IS_SYSTEMD")
+	return v == "1"
+}()

src/go-proxy/main.go

@@ -19,12 +19,16 @@ func main() {
 
 	args := getArgs()
 
-	logrus.SetFormatter(&logrus.TextFormatter{
-		ForceColors:     true,
-		DisableColors:   false,
-		FullTimestamp:   true,
-		TimestampFormat: "01-02 15:04:05",
-	})
+	if isRunningAsService {
+		logrus.SetFormatter(&logrus.JSONFormatter{})
+	} else {
+		logrus.SetFormatter(&logrus.TextFormatter{
+			ForceColors:     true,
+			DisableColors:   false,
+			FullTimestamp:   true,
+			TimestampFormat: "01-02 15:04:05",
+		})
+	}
 
 	if args.Command == CommandReload {
 		err := utils.reloadServer()