Pm2 start erases my app files

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Running on: Ubuntu 20.04 - Pm2 5.1.1 - node 16.7 - npm 7.20.3

I have an npm global install of PM2, when I change to the app folder and do a pm2 start app ... everything is fine
I tried to make another folder specific for PM2 to save the config file
$ cd
$ mkdir pm2
And then
$ pm2 init simple
When I edit the config file


module.exports = {
  apps : [{
    name   : "app1",
    script : "../apps/app1/index.js"
  }]
}

$ cd /apps/app1
$ pm2 start index.js
These files replace my app files and everything is erased in the /apps/app1 folder
ecosystem.config.js modules pids pub.sock
logs package.json pm2.log rpc.sock
module_conf.json package-lock.json pm2.pid touch

Is this a bug or I am doing something wrong?

2021-08-19T20:32:27: PM2 log: ===============================================================================
2021-08-19T20:32:27: PM2 log: --- New PM2 Daemon started ----------------------------------------------------
2021-08-19T20:32:27: PM2 log: Time : Thu Aug 19 2021 20:32:27 GMT+0000 (Coordinated Universal Time)
2021-08-19T20:32:27: PM2 log: PM2 version : 5.1.0
2021-08-19T20:32:27: PM2 log: Node.js version : 16.6.2
2021-08-19T20:32:27: PM2 log: Current arch : x64
2021-08-19T20:32:27: PM2 log: PM2 home : /root/.pm2
2021-08-19T20:32:27: PM2 log: PM2 PID file : /root/.pm2/pm2.pid
2021-08-19T20:32:27: PM2 log: RPC socket file : /root/.pm2/rpc.sock
2021-08-19T20:32:27: PM2 log: BUS socket file : /root/.pm2/pub.sock
2021-08-19T20:32:27: PM2 log: Application log path : /root/.pm2/logs
2021-08-19T20:32:27: PM2 log: Worker Interval : 30000
2021-08-19T20:32:27: PM2 log: Process dump file : /root/.pm2/dump.pm2
2021-08-19T20:32:27: PM2 log: Concurrent actions : 2
2021-08-19T20:32:27: PM2 log: SIGTERM timeout : 1600
2021-08-19T20:32:27: PM2 log: ===============================================================================

Reproduce the reported sequence with pm2 init simple, the shown ecosystem.config.js, and pm2 start index.js on Ubuntu 20.04. Start by tracing how PM2 resolves its working directory and generated files; done means starting the app no longer replaces or creates PM2 files inside /apps/app1 unexpectedly.

Written by the indexing model from the issue text.

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