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pm2-main.js
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35 lines (28 loc) · 1.37 KB
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var pm2 = require('pm2');
var instances = process.env.WEB_CONCURRENCY || 1; // Set by Heroku or 1 (set -1 to scale to max cpu core - 1)
var maxMemory = process.env.WEB_MEMORY || 512; // 512 is the maximum free Dyno memory on Heroku
pm2.connect(function() {
pm2.start({
script : 'app.js',
name : 'msr', // ----> THESE ATTRIBUTES ARE OPTIONAL:
exec_mode : 'cluster', // set to 'cluster' for cluster execution
instances : instances,
max_memory_restart : maxMemory + 'M', // Auto restart if process taking more than XXmo
env: { // If needed declare some environment variables
"NODE_ENV": "production"
}
}, function(err) {
if (err) return console.error('Error while launching applications', err.stack || err);
console.log('PM2 and application has been successfully started');
// Display logs in standard output
pm2.launchBus(function(err, bus) {
console.log('[PM2] Log streaming started');
bus.on('log:out', function(packet) {
console.log('[App:%s] %s', packet.process.name, packet.data);
});
bus.on('log:err', function(packet) {
console.error('[App:%s][Err] %s', packet.process.name, packet.data);
});
});
});
});