Use site directory in supervisor config template for workers

[rygilles]

I think that we could use site path as the directory option value for workers in the supervisor template by default (when a worker is create for a site, not "globally" on the server).
And maybe add "directory" as an option in the UX and API as well.

The template here:

vito/resources/views/ssh/services/process-manager/supervisor/worker.blade.php

Lines 1 to 12 in 24d3b46

	[program:{{ $name }}]
	process_name=%(program_name)s_%(process_num)02d
	command={{ $command }}
	autostart={{ $autoStart }}
	autorestart={{ $autoRestart }}
	user={{ $user }}
	numprocs={{ $numprocs }}
	redirect_stderr=true
	stdout_logfile={{ $logFile }}
	stopwaitsecs=3600
	stopasgroup=true
	killasgroup=true

Search for directory option here for more details: https://supervisord.org/configuration.html

Actually, I would need this in the context of creating automated review-apps, in order to avoid having to add/specify the folder in the command depending on the site and its path.

[rygilles]

I made a PR for this (only to enforce the site path as supervisor config directory instead of the root directory of the server): #754