How to startup PM2 with multiple instances

I am running my nodejs code via PM2. For my project I need multiple instances of nodejs that running the same code. So I created a next script "myscript.sh":

cd ~/myproject    
PM2_HOME='.pm2_1' /usr/local/bin/node /usr/local/lib/node_modules/pm2/bin/pm2 start dist/app.js -- id=1 token=xxx isMaster=true
PM2_HOME='.pm2_2' /usr/local/bin/node /usr/local/lib/node_modules/pm2/bin/pm2 start dist/app.js -- id=1 token=yyy isMaster=false
. . .
PM2_HOME='.pm2_x' /usr/local/bin/node /usr/local/lib/node_modules/pm2/bin/pm2 start dist/app.js -- id=1 token=zzz isMaster=false

It works when I run it via CLI like bash myscript.sh, but it doesn't work via crontab:

@reboot bash /home/user/myproject/myscript.sh

or

* * * * * bash /home/user/myproject/myscript.sh

Also I tried to use pm2 startup but it doesn't work with the PM2_HOME='..' parameter, no matter what I set to PM2_HOME, like .pm2_1, it still creates environment like /home/user/myproject/.pm2. Seems like pm2 startup works for the single instances only.

So my question how can I run myscript.sh via crontab?

I don't know if it relevant my code is written in TS. On localhost I run it like this:

npm start -- id=1 token=zzz isMaster=false

where start is set in package.json:

"start": "npm run build && node dist/app"
"build": "rimraf dist && tsc"

Please notice that

1. Every instance should get different parameters
2. Solution should work for the startup case, like the app should startup with a machine start

Why use PM2_HOME var? PM2_HOME var is usefull if you need multiple instance of PM2 daemon.

What you need, if i understand well, is running many instance of your script. This can be done with the same PM2 daemon!

To achieve this just do this, assuming you use linux box.

1 - Start all your instances of your same script with different parameters:

pm2 -n "Script 1" start /my/script.js -- param1=xxx param2=111
pm2 -n "Script 2" start /my/script.js -- param1=yyy param2=222
pm2 -n "Script 3" start /my/script.js -- param1=zzz param2=333

2 - Save your pm2 configuration:

pm2 save

3 - Enable pm2 startup hook:

pm2 startup

4 You are done! You can add new instance if needed, just type the pm2 save command to register new instances.

To have PM2 run multiple instances of your node app you'll want to use clustered mode.

See the docs here: https://pm2.keymetrics.io/docs/usage/cluster-mode/

For example, you can use this command to start 4 instances of your app:

pm2 start app.js -i 4

--- EDIT ---

For providing different input parameters per process I don't think there is any easy way to do that with PM2.

An alternative is to create a new JavaScript/TypeScript file as your entry point. Have that entry point create multiple child processes, each of which is your application. Then you could pass in different parameters for each.