Start a process or all process from the Procfile.
$ gaffer start [name]
Gaffer will run your application directly from the command line.
If no additional parameters are passed, gaffer run one instance of each type of process defined in your Procfile.
-c, –concurrency:
Specify the number of each process type to run. The value passed in should be in the format process=num,process=num
-d, –directory:
Specify an alternate application root. This defaults to the directory containing the Procfile