How run Product mode in pm2?

Questions and Answers
1
System Information
  • Strapi Version: 3.4.0
  • Operating System: Linux
  • Database: Mysql
  • Node Version: v12.18.3
  • NPM Version: 6.14.6
  • Yarn Version: 1.22.4

I following the strapi docs to serve the strapi project via pm2. I had create a ./server.js file - Process Manager - Strapi Developer Documentation like this link.

./server.js
module.exports = {
  apps: [
    {
      name: "strapi-backend",
      script: "npm",
      args: "dev",
    },
  ],
};

It’s work to serve developerment mode in droplet. How we can run it as production mode? I saw a docs from strapi.
NODE_ENV=production yarn start
How we run this in pm2?

show a list of app serve by pm2
$ pm2 list

restart app serve by pm2
$ pm2 restart [numberApp]

How we run NODE_ENV=production yarn start in pm2? Because there has a list of project. How it know to point strapi-backend app?

2

@wilkersoh
To run strapi with pm2 in production mode, I would recommend using ecosystems file.

Create an ecosystems.config.js file in the root folder of your project (near package.json).

module.exports = {
  apps: [
    {
      name: 'yourapp-name',
      script: 'npm',
      args: 'start',
      env: {
        NODE_ENV: 'production',
      },
      exp_backoff_restart_delay: 100,
    },
  ],
};

Now run it with following command: pm2 start ecosystems.config.js

3 Likes
3

Thank you. =)

4

Tried pm2 today in ec2 and got some error, any idea?

/home/ubuntu/.pm2/pm2.log last 15 lines:
PM2 | at Process.ChildProcess._handle.onexit (node:internal/child_process:283:19)
PM2 | at onErrorNT (node:internal/child_process:478:16)
PM2 | at processTicksAndRejections (node:internal/process/task_queues:83:21)
PM2 | 2022-08-19T15:24:27: PM2 log: App [strapi-cms:0] starting in -fork mode-
PM2 | 2022-08-19T15:24:27: PM2 log: App [strapi-cms:0] online
PM2 | 2022-08-19T15:24:27: PM2 error: Error: spawn node ENOENT
PM2 | at Process.ChildProcess._handle.onexit (node:internal/child_process:283:19)
PM2 | at onErrorNT (node:internal/child_process:478:16)
PM2 | at processTicksAndRejections (node:internal/process/task_queues:83:21)
PM2 | 2022-08-19T15:34:46: PM2 log: App [strapi-cms:0] starting in -fork mode-
PM2 | 2022-08-19T15:34:46: PM2 log: App [strapi-cms:0] online
PM2 | 2022-08-19T15:34:46: PM2 error: Error: spawn node ENOENT
PM2 | at Process.ChildProcess._handle.onexit (node:internal/child_process:283:19)
PM2 | at onErrorNT (node:internal/child_process:478:16)
PM2 | at processTicksAndRejections (node:internal/process/task_queues:83:21)

here is my ecosystem.config.js,

module.exports = {
apps: [
{
name: ‘strapi-cms’,
cwd: ‘/home/ubuntu/strapi_cms’,
script: ‘npm’,
args: ‘start’,
env: {
NODE_ENV: ‘production’,
DATABASE_HOST: ‘something-exxxxxast-1.rds.amazonaws.com’,
DATABASE_PORT: ‘5432’,
DATABASE_NAME: ‘sdfadsfaf’,
DATABASE_USERNAME: ‘adfadfasd’,
DATABASE_PASSWORD: ‘adfasdfasfd’,
AWS_ACCESS_KEY_ID:‘yyyyyy’,
AWS_SECRET_ACCESS_KEY:‘xxxx’,
AWS_REGION:‘xx-xx-x’,
AWS_BUCKET_NAME:‘xxxx-xxx’
}
},
],
}

I tried different node version 16,17, 18, all the same.
With all these creds in .env, I can start it with nohup.

5

I solved it, pretty dumb, delete the pm2 job pm2 delete 0,

and pm2 start ecosystem.conf.js. just a bad day maybe.

6

Maybe it will help someone. At the moment running pm2 in win via npm causes errors because pm2 is trying to run a win script as js.

That’s why we need to add a starting point as a js file in root.
Process Manager - Strapi Developer Docs

Then you can add the config as a json in root of project.

{
  "apps": [
    {
      "name": "app-name",
      "script": "server.js",
      "cwd": "./"
    }
  ]
}

And then in package json scripts section jsut:

"scripts": {
    "develop": "strapi develop",
    "build": "strapi build",
    "strapi": "strapi",
    "start": "strapi start",
    "start-pm": "pm2 start pm2.json"
  }