Next.js + PM2 Set up

[ShawnCentra]

Hey guys. I tried running Next.js + Forever but the start up time for the web pages was extremely slow and I wasn't sure why. Decided to install pm2 and give that a shot.

Is there a good set up/resource for running a next.js production build with PM2?

[nicosh]

Build the app : npm run build
Launch pm2 deamon: pm2 start npm --name "myApp" -- start
Then use pm2 reload when you need to (for example for updating your app after a git pull)

pm2 stop yourAppProcessId
git pull 
npm run build
pm2 reload yourAppProcessId

if you want to setup CI/CD with github here an example of action :

name: CI/CD
on:
  push:
    branches: [main]
jobs:
  deploy:
    runs-on: [self-hosted, myServer]
    steps:
      - uses: actions/checkout@v2
        with:
          clean: true
      - name: Install dependencies for production
        run: npm install
      - name: Build the app
        if: success()
        run: npm run build
      - name: Restart the process
        if: success()
        run: pm2 reload yourProcessId

[ragavendra]

Will this work if pages are statically generated?

I like to update the site say with
a. new code and
b. with pages statically generated as well.

I get 500 Internal server error for the static pages if I build without pm2 stop

[ShawnCentra]

pm2 start npm --name "nextCentra" -- start

Status is being shown as stopped after running the above command like you suggested. @nicosh

I usually use yarn to start my application with - tried that. Same thing. pm2 start yarn --name "nextCentra" -- start

[ShawnCentra]

In package.json

  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "pm2": "pm2 start pm2.json"
  },

pm2.json in root directory

{
	"apps": [
		{
			"name": "website",
			"script": "node_modules/next/dist/bin/next",
			"args": "start",
			"cwd": "./",
			"instances": "max",
			"exec_mode": "cluster"
		}
	]
}

Now run in CL

pm2 start pm2.json

This worked.

[newerton]

@ShawnCentra Thank you! I wasn't getting it with npm, but with next and exec_mode it worked!

[sivasamih]

@ShawnCentra this one worked for me too. Thanks a ton!!!

[mohsen-salehi]

I have a problem
You think I ran this on 30 instances
and I'm having trouble clearing the cache
How do I handle this?

[Rayyos]

How can we run this in docker container

[SouthLink]

You can refer to this answer
#64702 (comment)