Puppet Deployment – How to Deploy Applications in .tar.gz with Puppet

I'm a beginner with Puppet and I would like to know if I'm on the right way to deploy applications with Puppet.

The applciations are in a tar.gz file which contains a file with the version number. So, I do this to deploy (I go on the server and do a client restart to pick up the new tarball):

nodes.pp

node 'server1.domain.com' inherits basenode {
    apps { apps:
            version => 56,
            apps_name => "apps_tarball.tgz",
    }


init.pp (modules)

exec {"apps_wget":
            command => "/usr/bin/wget http://web_server/${version}-${apps_name} -O /tmp/${container_zip_name}",
            unless  => "test -f /tmp/${version}-${apps_name}",
            require => [ Package["wget"] ],
    }

exec {"apps_unzip":
            cwd     => "/usr/local/apps/path",
            command => "/usr/bin/unzip /tmp/${version}-${apps_name}",
            unless  => "test -f /usr/local/apps/path/apps-version-${version}",
            require => [ Package["unzip"], Exec["container_wget"] ],
    }

But, when I want to upgrade, I don't know to say Puppet to delete the old directory?
For example, If I want to upgrade version 56 to 57: I must delete the 56's version directory.

I heard about Capristrano and it seems to be better to use Puppet for managinig packages, config files and using Capristrano to deploy apps, isn't it?

Thanks.