market-data-service/ecosystem.config.js

module.exports = {
  apps: [{
    name: 'market-data-api',
    script: 'src/server.js',
    instances: 'max',
    exec_mode: 'cluster',
    env: {
      NODE_ENV: 'production',
      PORT: 3001
    },
    error_file: './logs/err.log',
    out_file: './logs/out.log',
    log_file: './logs/combined.log',
    time: true,
    merge_logs: true,
    watch: false,
    max_memory_restart: '1G'
  }]
};