Initial commit

mostly as-is, taken from `rattail.fablib` subpackage

rattail_fabric/postfix.py

@@ -0,0 +1,97 @@
+# -*- 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 Postfix
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+from fabric.api import sudo
+from fabric.contrib.files import sed, append
+
+
+from rattail_fabric import apt
+
+
+def install():
+    """
+    Install the Postfix mail service
+    """
+    apt.install('postfix')
+    apt.purge('exim4', 'exim4-base', 'exim4-config', 'exim4-daemon-light')
+
+
+def alias(name, alias_to, path='/etc/aliases'):
+    """
+    Set a mail alias for Postfix
+    """
+    # replace setting if already exists; then add in case it didn't
+    entry = '{}: {}'.format(name, alias_to)
+    sed(path, r'^{}: .*$'.format(name), entry, use_sudo=True)
+    append(path, entry, use_sudo=True)
+    sudo('newaliases')
+
+
+def restart():
+    """
+    Restart the Postfix mail service
+    """
+    sudo('service postfix restart')
+
+
+def set_config(setting, value, path='/etc/postfix/main.cf'):
+    """
+    Configure the given setting with the given value.
+    """
+    # replace setting if already exists; then add in case it didn't
+    entry = '{} = {}'.format(setting, value)
+    sed(path, r'^{} = .*$'.format(setting), entry, use_sudo=True)
+    append(path, entry, use_sudo=True)
+
+
+def set_myhostname(hostname):
+    """
+    Configure the 'myhostname' setting with the given string.
+    """
+    set_config('myhostname', hostname)
+
+
+def set_mydestination(*destinations):
+    """
+    Configure the 'mydestinations' setting with the given strings.
+    """
+    set_config('mydestination', ', '.join(destinations))
+
+
+def set_mynetworks(*networks):
+    """
+    Configure the 'mynetworks' setting with the given strings.
+    """
+    set_config('mynetworks', ' '.join(networks))
+
+
+def set_relayhost(relayhost):
+    """
+    Configure the 'relayhost' setting with the given string
+    """
+    set_config('relayhost', relayhost)