如何将node.js应用程序作为后台服务运行? [英] How do I run a node.js app as a background service?

问题描述

由于这些年来引起了很多关注，因此我在文章的底部列出了每个平台的最佳解决方案.

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原始帖子:

我希望我的node.js服务器在后台运行，即:当我关闭终端时，我希望服务器继续运行.我已经对此进行了Google搜索，并提出了教程，但是它不起作用如预期.因此，我没有使用该守护程序脚本，而是以为我只使用了输出重定向(2>&1 >> file部分)，但这也不会退出-我在终端中出现空白行，就像它在等待输出/错误.

我也尝试过将进程置于后台，但是一旦关闭终端，进程也会被终止.

那么当我关闭本地计算机时如何使其保持运行状态?

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最佳解决方案:

• Systemd (Linux)
• 启动(Mac)
• 节点窗口(Windows)
• PM2 (Node.js)

解决方案

从

[Unit]
Description=My app

[Service]
ExecStart=/var/www/myapp/app.js
Restart=always
User=nobody
# Note Debian/Ubuntu uses 'nogroup', RHEL/Fedora uses 'nobody'
Group=nogroup
Environment=PATH=/usr/bin:/usr/local/bin
Environment=NODE_ENV=production
WorkingDirectory=/var/www/myapp

[Install]
WantedBy=multi-user.target

请注意，如果您不熟悉Unix: /var/www/myapp/app.js的第一行应带有#!/usr/bin/env node.

将您的服务文件复制到/etc/systemd/system.

从systemctl start myapp开始.

启用它以使用systemctl enable myapp在启动时运行.

使用journalctl -u myapp

查看日志

这取自 我们如何在Linux(2018版)上部署节点应用程序 ，其中还包括用于生成AWS/DigitalOcean/Azure CloudConfig来构建Linux/节点服务器(包括.service文件)的命令.

Since this post has gotten a lot of attention over the years, I've listed the top solutions per platform at the bottom of this post.

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Original post:

I want my node.js server to run in the background, i.e.: when I close my terminal I want my server to keep running. I've googled this and came up with this tutorial, however it doesn't work as intended. So instead of using that daemon script, I thought I just used the output redirection (the 2>&1 >> file part), but this too does not exit - I get a blank line in my terminal, like it's waiting for output/errors.

I've also tried to put the process in the background, but as soon as I close my terminal the process is killed as well.

So how can I leave it running when I shut down my local computer?

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Top solutions:

• Systemd (Linux)
• Launchd (Mac)
• node-windows (Windows)
• PM2 (Node.js)

解决方案

Copying my own answer from How do I run a Node.js application as its own process?

2015 answer: nearly every Linux distro comes with systemd, which means forever, monit, PM2, etc are no longer necessary - your OS already handles these tasks.

Make a myapp.service file (replacing 'myapp' with your app's name, obviously):

[Unit]
Description=My app

[Service]
ExecStart=/var/www/myapp/app.js
Restart=always
User=nobody
# Note Debian/Ubuntu uses 'nogroup', RHEL/Fedora uses 'nobody'
Group=nogroup
Environment=PATH=/usr/bin:/usr/local/bin
Environment=NODE_ENV=production
WorkingDirectory=/var/www/myapp

[Install]
WantedBy=multi-user.target

Note if you're new to Unix: /var/www/myapp/app.js should have #!/usr/bin/env node on the very first line.

Copy your service file into the /etc/systemd/system.

Start it with systemctl start myapp.

Enable it to run on boot with systemctl enable myapp.

See logs with journalctl -u myapp

This is taken from How we deploy node apps on Linux, 2018 edition, which also includes commands to generate an AWS/DigitalOcean/Azure CloudConfig to build Linux/node servers (including the .service file).

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