Generate Puppetfile

We want to generate our Puppefile automatically
based on the value set in openstack_modules.txt and
external_modules.txt files.
A bot will then propose the correct version based on
puppet-openstack-integration project for the common
puppet modules. For the modules only required by
Packstack, the bot will propose the latest version.
Note we can pin by tag or commit if needed.

Change-Id: I2e67c1c7e48b92485066a2e9c1ce4bd5fe602b04

external_modules.txt

@@ -0,0 +1,17 @@
+puppetlabs/puppetlabs-apache
+puppetlabs/puppetlabs-concat
+puppetlabs/puppetlabs-firewall
+puppetlabs/puppetlabs-inifile
+saz/puppet-memcached
+puppetlabs/puppetlabs-mysql
+rcritten/puppet-nssdb
+voxpupuli/puppet-rabbitmq
+arioch/puppet-redis
+paramite/puppet-remote,7420908328b832f4b20e1eba44bcccd926da8faa
+puppetlabs/puppetlabs-rsync
+saz/puppet-ssh
+puppetlabs/puppetlabs-stdlib
+duritong/puppet-sysctl
+camptocamp/puppet-systemd
+puppetlabs/puppetlabs-vcsrepo
+puppetlabs/puppetlabs-xinetd

openstack_modules.txt

@@ -0,0 +1,21 @@
+aodh
+ceilometer
+cinder
+glance
+gnocchi
+heat
+horizon
+ironic
+keystone
+magnum
+manila
+neutron
+nova
+openstacklib
+oslo
+ovn
+placement
+swift
+tempest
+trove
+vswitch