apache2 passenger #6

Supports: precise
Add to new model


Phusion Passenger is an application server for Ruby (Rack) apps.
It allows you to get your web apps online with the least amount of hassle, by taking
care of pretty much all of the heavy lifting for you when it comes to managing
your apps' processes and resources.


Apache2 with module Passenger Juju Charm. Provides a container for subordinate Rack Charm.


  1. Deploy Apache2 with Passenger module.

    juju deploy apache2-passenger
  2. Deploy Rack application and all dependent services (see how).

    juju deploy rack --config myapp.yml
  3. Relate them

    juju add-relation rack apache2-passenger
  4. Open the stack up to the outside world.

    juju expose apache2-passenger
  5. Find the apache2-passenger instance's public URL from

    juju status


It's possible to use this service with load balancer. Here is an example

  1. Run steps 1-3 from Usage section

  2. Deploy load balancer, e.g. haproxy

    juju deploy haproxy
  3. Relate it to the stack

    juju add-relation haproxy apache2-passenger
  4. Scale up the stack

    juju add-unit -n3 apache2-passenger
  5. Expose load balancer up to the outside world.

    juju expose haproxy

Under the hood

  • installs Apache2 and all dependencies
  • installs Ruby 1.9.3, Phusion Passenger, apache2-mod-passenger from Brightbox Launchpad package repository.
  • configures Apache2 to run Rack applications