How to use PM2 to Manage Multiple Node Services in production

 If you want to manage and monitor the services, you can use PM2, a process manager for Node.js. This is particularly useful in production environments.

1. Install PM2 globally:

   
   npm install pm2 -g
   

2. Create an ecosystem file (e.g., ecosystem.config.js) to define all services:

   
   module.exports = {
     apps: [
       {
         name: 'microservice1',
         script: './microservice1/server.js',
         watch: true,
         env: {
           NODE_ENV: 'production',
         },
       },
       {
         name: 'microservice2',
         script: './microservice2/server.js',
         watch: true,
         env: {
           NODE_ENV: 'production',
         },
       },
       {
         name: 'microservice3',
         script: './microservice3/server.js',
         watch: true,
         env: {
           NODE_ENV: 'production',
         },
       },
     ],
   };
   

3. Start all services:

   
   pm2 start ecosystem.config.js
   

4. Monitor services:

   pm2 list

Cheers,

Kapil