Initial commit; enough to prove concepts at least

was able to bootstrap a complete machine with this, although there's lots
missing yet...

rattail_fabric2/apache.py

@@ -0,0 +1,89 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2018 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Fabric library for Apache web server
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+import re
+
+from rattail_fabric2 import apt
+
+
+def install(c):
+    """
+    Install the Apache web service
+    """
+    apt.install(c, 'apache2')
+
+
+def get_version(c):
+    """
+    Fetch the version of Apache running on the target system
+    """
+    result = c.sudo('apache2 -v')
+    if not result.failed:
+        match = re.match(r'^Server version: Apache/(\d+\.\d+)\.\d+ \(.*\)', result.stdout)
+        if match:
+            return float(match.group(1))
+
+
+def enable_mod(c, *names):
+    """
+    Enable the given Apache modules
+    """
+    for name in names:
+        c.sudo('a2enmod {}'.format(name))
+
+
+def enable_site(c, *names):
+    """
+    Enable the given Apache site(s)
+    """
+    for name in names:
+        c.sudo('a2ensite {}'.format(name))
+
+
+def deploy_site(c, deployer, local_path, name, enable=False, **kwargs):
+    """
+    Deploy a file to Apache sites-available
+    """
+    apache_version = get_version(c)
+    if apache_version == 2.2:
+        path = '/etc/apache2/sites-available/{}'.format(name)
+    else:
+        path = '/etc/apache2/sites-available/{}.conf'.format(
+            '000-default' if name == 'default' else name)
+    context = kwargs.pop('context', {})
+    context['apache_version'] = apache_version
+    deployer(c, local_path, path, context=context, **kwargs)
+    if enable and name != 'default':
+        enable_site(c, name)
+
+
+def restart(c):
+    """
+    Restart the Apache web service
+    """
+    c.sudo('systemctl restart apache2.service')