The easiest way I've found is to use an environment variable to name the application-specific configuration file.

So, for our credit card payment processing system, the config file lives in an environment variable called MERCHANT_CONFIG_FILE, which might then contain: 

[Database]
username = bradb
password = god
hostname = foo
database = bar

[download]
Then parse it with something like Config::IniFiles and you're good to go. Of course, this can be applied to more than just database connections.

In reply to Re: DBI database connection support and more by bradb
in thread DBI database connection support and more by princepawn

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