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#!/usr/bin/python
# Create and manage postfix instances.
# Copyright (c) 2013 Guilhem Moulin <guilhem@fripost.org>
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
# Look up postfix configuration variable
def postconf(k, instance=None):
cmd = [ os.path.join(os.sep, 'usr', 'sbin', 'postconf') ]
if instance:
config = os.path.join(os.sep, 'etc', 'postfix-%s' % instance)
cmd.extend([ '-c', config ])
cmd.extend([ '-h', k ])
return subprocess.check_output(cmd, stderr=subprocess.STDOUT).rstrip()
def main():
module = AnsibleModule(
argument_spec = dict(
instance = dict( required=True ),
group = dict( required=False )
),
supports_check_mode=True
)
params = module.params
instance = params['instance']
group = params['group']
changed=False
try:
enable = postconf('multi_instance_enable')
wrapper = postconf('multi_instance_wrapper')
if enable != "yes" or not wrapper:
# Initiate postmulti
changed = True
if module.check_mode:
module.exit_json(changed=changed, msg="init postmulti")
cmd = [ os.path.join(os.sep, 'usr', 'sbin', 'postmulti') ]
cmd.extend([ '-e', 'init' ])
subprocess.check_output(cmd, stderr=subprocess.STDOUT).rstrip()
instances = postconf('multi_instance_directories').split()
if os.path.join(os.sep, 'etc', 'postfix-%s' % instance) not in instances:
changed = True
# Create the instance
if module.check_mode:
module.exit_json(changed=changed, msg="create postmulti")
cmd = [ os.path.join(os.sep, 'usr', 'sbin', 'postmulti') ]
cmd.extend([ '-e', 'create' ])
if group:
cmd.extend([ '-G', group ])
cmd.extend([ '-I', 'postfix-%s' % instance ])
subprocess.check_output(cmd, stderr=subprocess.STDOUT).rstrip()
elif group != postconf('multi_instance_group', instance):
changed = True
# Assign a new group, or remove the existing group
if module.check_mode:
module.exit_json(changed=changed, msg="assign group")
cmd = [ os.path.join(os.sep, 'usr', 'sbin', 'postmulti') ]
cmd.extend([ '-e', 'assign', '-i', 'postfix-%s' % instance ])
if group:
cmd.extend([ '-G', group ])
else:
cmd.extend([ '-G', '-' ])
subprocess.check_output(cmd, stderr=subprocess.STDOUT).rstrip()
module.exit_json(changed=changed)
except subprocess.CalledProcessError, e:
module.fail_json(rv=e.returncode, msg=e.output.rstrip())
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
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