如何部署 Netty 服务器？

Question

I've developed a Netty application that allows connections through TCP from various devices. However i'm not entirely sure what is the best way to deploy the application for production use. Right now i package it up in a JAR file and run a screen session on the target server like so:

screen -S Nettyjava -jar  Server-Netty.jar

Is this the recommended way to deploy it or is screen the best option available?

Answer 1

screen is not the right tool to run a service in production. If the system has to reboot, you will have to relaunch the service by hand. On most current linux distributions, you can handle this with a systemd service unit file . This allows you to define the working directory, the user, the command to run... Here is an example taken from the Unix & Linux StackExchange question configure java daemon with systemd

[Unit]
Description=Some job
After=network.target

[Service]
WorkingDirectory=/home/user/tmp/testout
SyslogIdentifier=SocketTest
ExecStart=/bin/sh -c "exec java -jar /home/user/programming/tests/java/core/SocketTest/SocketTest.jar"
User=dlt
Type=simple

[Install]
WantedBy=multi-user.target

A good practice consists in creating a specific user for running the service and to restrain his right on the filesystem.