app.sock not found

[andersondn]

Hola amigo!

The file app.sock is not being created, how can I fix this?

[timeignacios]

Buenas tardes @andersondn El archivo app.sock es creado por node a momento de intentar conectarse a él. Cuando lo creas debes darle los permisos necesarios para que nginx pueda interactuar con él. Sólo pone la ruta al unix socket en lugar del puerto de conexión, y Node lo creará.

[beird]

I think this is related to user/ folder permissions. i have made some tests I have made below post (under hestiacp) https://forum.hestiacp.com/t/node-js-support/653/9

[iamkbkarthikeyan]

Hi there, I was completed all steps. and create a nodejs with express ejs basic app. and I just directly uploaded the file into my vesta's website directory. If I hit the domain, I got 500 error. also, I don't have the .sock file. can you please explain the .sock part only. how to create the .sock file or what we need to do in our node app.

Thanks, Karthikeyan

[nchsala]

@iamkbkarthikeyan If you put a listen like this: http.listen('app.sock', callback); Node will create the app.sock file for you.

Maybe you need some extra code for service restart cases, because the socket file needs to be removed and re-created for every NodeJS restart.

The following code detects errors when creating the server. Delete and recreate the socket file

  http.on('error', function (e) {
    if (e.code == 'EADDRINUSE') {
        var clientSocket = new net.Socket();
        clientSocket.on('error', function(e) { // handle error trying to talk to server
            if (e.code == 'ECONNREFUSED') {  // No other server listening
                fs.unlinkSync('app.sock');
                http.listen('app.sock', callback);
            }
        });
        clientSocket.connect({path: 'app.sock'}, function() { 
            console.log('Server running, giving up...');
            process.exit();
        });
    }
  });

Good luck !!

[iamkbkarthikeyan]

So, we can't use express.js instead of express we're using http server right? or is there any possibility to run express app.

[nchsala]

@iamkbkarthikeyan With something like

const express = require('express');
const app = express();
const http = require('http').Server(app);

You can use the express app object and all the http events without problems

[iamkbkarthikeyan]

Hi, can you please create a simple node app for demonstration and push into git repo. Also attach the link into this repo's readme file. It might helpful for everyone. Still I can't deploy it. Getting same errors.

Thanks, Karthikeyan

[aligoren]

In our example you can use express like that;

const express = require('express')
const app = express()
const port = '/home/admin/web/YOUR_DOMAIN.COM/nodeapp/app.sock';
const hostname = 'YOUR_HOST_NAME';

app.get('/', (req, res) => {
  res.send('Hello World!')
})

app.get('/about', (req, res) => {
  res.send({ info: 'APP test server'  });
})

app.listen(port, hostname, () => {
  console.log(`Example app listening at http://localhost:${port}`)
})

Then run this command;

pm2 start app.js

Don't forget to chmod 777 "$(pwd)/app.sock" command after started server.

I have a bash script like that;

/home/admin/web/YOUR_DOMAIN.COM/nodeapp/server.sh

rm -f "$(pwd)/app.sock"
pm2 start app.js
echo "Starting server..."
sleep 2
chmod 777 "$(pwd)/app.sock"
echo "Server started..."

[ryanspandu]

In our example you can use express like that;

const express = require('express')
const app = express()
const port = '/home/admin/web/YOUR_DOMAIN.COM/nodeapp/app.sock';
const hostname = 'YOUR_HOST_NAME';

app.get('/', (req, res) => {
  res.send('Hello World!')
})

app.get('/about', (req, res) => {
  res.send({ info: 'APP test server'  });
})

app.listen(port, hostname, () => {
  console.log(`Example app listening at http://localhost:${port}`)
})

Then run this command;

pm2 start app.js

Don't forget to chmod 777 "$(pwd)/app.sock" command after started server.

I have a bash script like that;

/home/admin/web/YOUR_DOMAIN.COM/nodeapp/server.sh

rm -f "$(pwd)/app.sock"
pm2 start app.js
echo "Starting server..."
sleep 2
chmod 777 "$(pwd)/app.sock"
echo "Server started..."

hello, i want to ask, for hostname, we put public ip address or 127.0.0.1 localhost ? thanks

[aligoren]

In our example you can use express like that;

const express = require('express')
const app = express()
const port = '/home/admin/web/YOUR_DOMAIN.COM/nodeapp/app.sock';
const hostname = 'YOUR_HOST_NAME';

app.get('/', (req, res) => {
  res.send('Hello World!')
})

app.get('/about', (req, res) => {
  res.send({ info: 'APP test server'  });
})

app.listen(port, hostname, () => {
  console.log(`Example app listening at http://localhost:${port}`)
})

Then run this command;

pm2 start app.js

Don't forget to chmod 777 "$(pwd)/app.sock" command after started server. I have a bash script like that; /home/admin/web/YOUR_DOMAIN.COM/nodeapp/server.sh

rm -f "$(pwd)/app.sock"
pm2 start app.js
echo "Starting server..."
sleep 2
chmod 777 "$(pwd)/app.sock"
echo "Server started..."

hello, i want to ask, for hostname, we put public ip address or 127.0.0.1 localhost ? thanks

I put a public IP address. I didn't try it with a local address. But I think it should work both ways.

[hisamaszaini]

I have some problem, if I use bash server.sh the error is connection refused