You will find plenty of useful information in these two articles:

Gracefully Deploying Plack Applications

Deploy Catalyst Applications with Starman and Apache

Although the second article is about Catalyst it shows how to use "Upstart" to manage a Plack app.

In reply to Re: Plack/PSGI Application Deployment by tangent
in thread Plack/PSGI Application Deployment by expandstudios

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