reprepro: convert to Ansible

This converts the reprepro configuration from our existing puppet to
Ansible.

This takes a more direct approach; the templating done by the puppet
version started simple but over the years grew several different
options to handle various use-cases.  This means you not only had to
understand the rather obscure reprepro configuration, but then *also*
figure out how to translate that from our puppet template layers.

Here the configuration files are kept directly (they were copied from
the existing mirror-update.openstack.org) and deployed with some light
wrapper tasks in reprepro/tasks/utils which avoids most duplication.

Note the initial cron jobs are left disabled so we can run some manual
testing before letting it go automatically.

Change-Id: I96a9ff1efbf51c4164621028b7a3a1e2e1077d5c

testinfra/test_mirror-update.py

@@ -70,3 +70,42 @@ def test_afsmon_installed(host):
 
     f = host.file('/etc/afsmon.cfg')
     assert f.exists
+
+# reprepro
+
+def test_repro_general_conf(host):
+    package = host.package('reprepro')
+    assert package.is_installed
+
+    f = host.file('/etc/reprepro')
+    assert f.exists
+    assert f.is_directory
+
+    f = host.file('/var/log/reprepro')
+    assert f.exists
+    assert f.is_directory
+
+    f = host.file('/usr/local/bin/reprepro-mirror-update.sh')
+    assert f.exists
+
+    f = host.file('/etc/logrotate.d/reprepro')
+    assert f.exists
+
+def test_reprepro_configs(host):
+
+    dirs = ('apt-puppetlabs',
+            'debian',
+            'debian-security',
+            'debian-ceph-octopus',
+            'debian-ceph-nautilus',
+            'debian-docker-xenial',
+            'debian-docker-bionic',
+            'debian-docker-focal',
+            'ubuntu',
+            'ubuntu-cloud-archive',
+            'ubuntu-ports')
+
+    for d in dirs:
+        for config in ('distributions', 'options', 'updates'):
+            f = host.file('/etc/reprepro/%s/%s' % (d, config))
+            assert f.exists