dependency cycle when defining manually apache vhost

[clauded]

I need to use https for my Redmine server. I'm using the following config:

class { 'apache':
default_vhost => false,
}
apache::vhost { "$vhost_servername":
port => 443,
docroot => "${webroot}/public",
servername => $vhost_servername,
serveraliases => $vhost_aliases,
ssl => true,
default_vhost => true,
options => 'Indexes FollowSymlinks ExecCGI',
custom_fragment => 'RailsBaseURI /',
}
class { 'apache::mod::passenger':
}
class { 'redmine':
www_subdir => '',
database_adapter => $db_backend,
download_url => 'https://github.com/redmine/redmine.git',
provider => 'git',
version => '2.5.3',
smtp_server => $smtp_server,
smtp_domain => $smtp_domain,
require => [
Class["${db_backend}::server"],
],
}

With this config, I get the following puppet error:

Error: Could not apply complete catalog: Found 1 dependency cycle:
(Exec[concat_/etc/apache2/ports.conf] => Concat[/etc/apache2/ports.conf] => Class[Apache] => Class[Redmine::Config] => Apache::Vhost[redmine] => Apache::Listen[80] => Concat::Fragment[Listen 80] => File[/var/lib/puppet/concat/etc_apache2_ports.conf/fragments/10_Listen 80] => Exec[concat/etc/apache2/ports.conf])
Cycle graph written to /var/lib/puppet/state/graphs/cycles.dot.

I think there should be a parameter to disable completely the definition of the vhost in config.pp.