Plack::App::Hostname

This PSGI application dispatches requests to any number of other
applications based on the "Host" request header. This is sometimes
referred to as virtual hosting. The mapping as well as the configuration
is reconfigurable at runtime with immediate effect. It is fast in the
simple case but will accept a custom match callback to support complex
scenarios.

One likely "complex" scenario is deployment on a multiprocess forking
server, where updates to the mapping only take effect per worker process.
Arranging for all workers to update their mappings in lockstep is fiddly
but a custom matcher doing lookups against some type of IPC-able table is
not.

Instances of this application can be introspected to ask whether a
particular hostname can be dispatched. This makes it easy to make other
parts of compound PSGI applications adapt to changes in the dynamic
mapping.

INSTALLATION

This is a Perl module distribution. It should be installed with whichever
tool you use to manage your installation of Perl, e.g. any of

  cpanm .
  cpan  .
  cpanp -i .

Consult http://www.cpan.org/modules/INSTALL.html for further instruction.
Should you wish to install this module manually, the procedure is

  perl Makefile.PL
  make
  make test
  make install

COPYRIGHT AND LICENSE

This software is copyright (c) 2016 by Aristotle Pagaltzis.

This is free software; you can redistribute it and/or modify it under the
same terms as the Perl 5 programming language system itself.