ecosystem.json

{
  "apps":   [
    {
      "name":               "javascript",
      "script":             "bin/server",
      "instances":          "2",
      "node_args":          "",
      "exec_mode":          "cluster_mode",
      "max_memory_restart": "2G",
      "log_file":           "/var/log/node/javascript.log",
      "error_file":         "/var/log/node/javascript-err.log",
      "out_file":           "/var/log/node/javascript-out.log",
      "env":                {
        "HOST":                        "127.0.0.1",
        "PORT":                        "3000",
        "PM2_GRACEFUL_LISTEN_TIMEOUT": 1000,
        "PM2_GRACEFUL_TIMEOUT":        5000
      },
      "env_production":     {
        "NODE_ENV":         "production",
        "SITE_HOST":        "https://learn.javascript.ru",
        "STATIC_HOST":      "https://js.cx",
        "ASSET_VERSIONING": "file"
      }
    }
  ]
}