Can pm2 ecosystem support promise config

Hi, I am using pm2 start ecosystem.config.js to start my multiple express projects, I use detect-port in each express project to avoid using used ports. Because free port is a dynamic number, so I want to show port in App name when I run pm2 list

┌──────────────┬────┬──────┬───────┬────────┬─────────┬────────┬─────┬────────┬──────────┐
│ App name     │ id │ mode │ pid   │ status │ restart │ uptime │ cpu │ mem    │ watching │
├──────────────┼────┼──────┼───────┼────────┼─────────┼────────┼─────┼────────┼──────────┤
│ script       │ 0  │ fork │ 33473 │ online │ 4       │ 6h     │ 0%  │ 0 B    │ disabled │
│ specify port │ 12 │ fork │ 35716 │ online │ 0       │ 2h     │ 0%  │ 0 B    │ disabled │
└──────────────┴────┴──────┴───────┴────────┴─────────┴────────┴─────┴────────┴──────────┘

I searched some issues, the only way I found doing this is change the name before run pm2 start ecosystem.config.js.

const apps = [
    {
        name:'specify port',
        script    : "app.js",
    },
    {
        name:'script',
        script    : "web.js"
    }
];
module.exports = apps;

So if pm2 can support promise config, my code can look like this:

const detect = require('detect-port');

function getPorts(basePort, number) {
    let ports = [];
    return new Promise((resolve)=>{
        const cb = (err, _port) => {
            if (err) {
                console.log(err);
            }
            ports.push(_port)
            if(ports.length<number){
                detect(_port+1, cb)
            }else {
                resolve(ports)
            }
        }

        detect(basePort, cb);
    })
}

const apps = [
    {
        name:'specify port',
        script    : "app.js",
    },
    {
        name:'script',
        script    : "web.js"
    }
];


function getApp() {
    return new Promise((resolve)=>{
        getPorts(3000, apps.length).then((data)=>{
            const appCopy = apps.map((v,k)=>{
                return Object.assign(v,{name:v.name+data[k]})
            })
            resolve(appCopy)
        })
    })
}

module.exports = getApp()

Or can you give me other suggestions, thanks.

Start by tracing how pm2 start ecosystem.config.js loads and validates the exported configuration. Define how a promise-returning config should be awaited and how generated app names should appear in pm2 list; the issue does not identify existing files or tests for this behavior.