spinner

Spawns child processes and allocates process.env.PORT for each.

Spinner

Spin up node scripts bound to dynamic ports (forked from nploy)

$ npm install spinner

createRouter(opts)

Options:

range - Port range [7000..7099]
time - Time to idle [15]
debug - Output logs
routes - Hash of routing pairs (source -> target) [{}]
output - Determines how child process output is handled:
- false - Will not capture child process output
- "console" - Will pipe child process stdin/stderr to console.info/console.error
- "process" - Will pipe child process stdin/stderr to process.stdin/process.stderr

Example:

var spinner = require('spinner');
var router = spinner.createRouter({ port: 5000, dir: '../test' });
 
router.setRoutes({
  'foo': 'a/index.js'
, 'goo': 'b/index.js'
});
 
router.getRoute('foo', function(err, route, child) {
  if (err) throw new Error(err);
  console.log('Use %s:%d to access "foo"', route.host, route.port);
  router.kill('foo', function(err) {
    console.log('"foo" is now dead');
    router.close();
  });
});

The router object has the following API.

Properties

range - Returns the port range configured in the router
idletime - Time in seconds to wait without a call to getRoute before the process is killed
options - Options object

setRoute(source, target), setRoutes(map)

target may be a path to a node.js script or an object with a script property (path to the script) and extra options passed to the forever module when starting the child process.

Update routes table with source -> script pair(s).