support Debian 9 (#404)

[wyardley]

This adds support to Debian 9
As currently implemented, it drops Debian 8 acceptance tests, though we could leave it as 8, or run both.

[wyardley]

Seems to be some issues with bootstrapping on the Debian 9 Docker nodeset.

[wyardley]

@juniorsysadmin I don't think we can implement / test this unless there's a way to make the Debian 9 acceptance tests work.

[wyardley]

It works for me locally with CHECK=beaker instead of CHECK=acceptance, but still doesn't seem to in Travis

[btravouillon]

For debian-9 support, we need beaker >= 3.9.0 (voxpupuli/beaker@23c7360)

Otherwise, beaker is not able to build the URL to download puppet:

debian-9-x64 23:31:02$ wget -O /tmp/puppet.deb http://apt.puppetlabs.com/puppetlabs-release-pc1-.deb

While the package name is puppetlabs-release-pc1-stretch.deb.

[btravouillon]

With the workaround in .sync.yml (BEAKER_VERSION='~> 3.27'), the test fails on #404.
I was working on a patch earlier, I made it available at https://gist.github.com/actatux/9ef9ab961623b18526adebb05a9d2621

[ekohl]

puppet-corosync/manifests/params.pp

Line 88 in 59b9dc0

$package_install_options = ['-t', 'jessie-backports']

needs to be just for Jessie. I assume Stretch won't need backports.

[wyardley]

@ekohl:

needs to be just for Jessie. I assume Stretch won't need backports.
So like this, right" if versioncmp($::operatingsystemrelease, '8') == 0?

[wyardley]

@actatux I updated the bit in params that @ekohl mentioned.

[ekohl]

There might be a few differences when we modulesync but we can deal with that there.