54 lines
1.4 KiB
Markdown
54 lines
1.4 KiB
Markdown
###### About
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<https://nodejs.org/en>
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###### Procedure
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1. Sign in as root user
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2. Run `apt install nodejs`
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!!! info "Note"
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This command may install an older version of Node.
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3. Run `node --version` to verify the installed version of Node.js
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4. Run `apt install npm` to install the Node package manager
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5. Run `npm install -g n` to *globally* install the `n` Node version manager
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6. Run `n latest` to fetch and install the latest version of Node.js
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###### Optional
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1. Install the PM2 daemon process manager globally via:
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```
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npm install -g pm2
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```
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This package allows daemonizing Node projects or shell scripts without the need to learn System V run levels, "init," or systemd services. For example, if we have a shell script that spawns a Java or Python-written server, you can use PM2 to host it:
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```sh title="/root/myapp/myapp.sh"
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#!/bin/bash
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cd /root/myapp
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source ./venv/bin/activate
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python3 -u myapp.py
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```
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1. Run `cd /root/myapp`
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2. Run `pm2 start myapp.sh` to daemonize `myapp.sh` with PM2
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3. Run `pm2 startup` to enable running PM2 at system startup
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4. Run `pm2 save` to save the current process list
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To view a list of all daemonized processes, run `pm2 list`. If your application crashes, PM2 will automatically restart your process, but may fail if the application is crashing in rapid succession. To view why, run `pm2 log myapp`.
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###### About PM2
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<https://pm2.keymetrics.io/>
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