node-auto-run

Starts node projects automatically and keeps checking for them. Starts the projects again if they get crashed. Keeps checking for newly added projects in config file.

Usage: (as Module)

var autoRun = require("node-auto-run");
var runner = new autoRun(config);

Usage: (as standalone node project)

  git clone https://github.com/animatedcreativity/node-auto-run
  cd node-auto-run
  npm update
  npm start

You can save a config file node-auto-proxy.js in parent folder of this node project as explained below.

config

• You can pass the config options right away when starting a new instance.
• There is config.js file in module itself for loading default options. But, this will get overwritten if you update the module.
• You can also add a node-auto-proxy.js file with config options in the current/parent folders of the module, so that config does not get overwritten each time you upgrade the module. Please check: https://www.npmjs.com/package/node-file-config
• Config options are refreshed from the files if any changes are found. No need to restart the project.

All config options are optional. Example config:

{
  start: false,
  interval: 30000,
  checks: 2,
  projects: {
    ...
  }
}

• start: Whether to start the runner automatically. Useful if you are going to run the module as standalone node project.
• interval: Time in milliseconds to keep checking for if projects are alive or not.
• checks: Number of times to check before starting the crashed node project, just to be sure.
• projects: List of all projects in "<project_folder": "<project_name>" format.

Example config with projects:

{
  start: false,
  interval: 30000,
  checks: 2,
  projects: {
    "<project-folder-1>": "<project-name-1>",
    "<project-folder-2>": "<project-name-2>",
    "<project-folder-3>": "<project-name-3>"
  }
}

Methods:

Can be used if you run this as a module.
All methods return promises.

.exec(projectFolder)

runner.exec("<project_folder>");

• Start a node project from the provided projectFolder.

.processes()

var list = runner.processes();

• Gets a list of all running node processes/projects on your system.

.process(projectFolder)

var process = runner.process("<project_folder>");

• Gets the process of node project from provided projectFolder, if its running.

.config()

var config = runner.config();

• Gets the config options in the config files as mentioned in the config section above. Useful to get if config is changed in the files.

Fun part: what if the node project of this module itself gets crashed?

It will be good if you run this module as a standalone node project. Make 2 copies of the same module's node project and add each other into their config's project list. Or you can keep single configuration file for both, please check config section above. Start just one copy as it will take care of everything else.

Command to start:

nohup npm start --prefix /root/projects/node/node-auto-run /root/projects/node/node-auto-run 2>/dev/null 1>/dev/null & 

Yes, project folder is passed 2 times.
First is prefix to start project from that folder.
Second is argument to tell that the project is running.