0_setup.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-
import utils


def setup(interactive=True):
    # Get hostname
    utils.log('Getting system hostname.')
    code, out = utils.exec_cmd(['hostname'], get_out=True)
    if code == 0:
        hostname = out
        utils.log('Hostname is %s.' % hostname)
    else:
        raise Exception('Failed to get hostname.')
    # Install and configure postfix
    dir_path = utils.get_dir(__file__)
    cmds = [
        'DEBIAN_FRONTEND=noninteractive apt-get -y install postfix mailutils',
        'echo "Replacing /etc/postfix/main.cf"',
        dict(line='write', template='%s/main.cf' % dir_path, target='/etc/postfix/main.cf', params=(
            ('{{ hostname }}', hostname),
            ('{{ smtp }}', utils.get_conf('EMAIL_SMTP_SERVER', '')),
        )),
        'echo "%s" > /etc/mailname' % hostname,
        'rgrep root /etc/aliases || echo "root: sysadmin@ubicast.eu" >> /etc/aliases',
        'service postfix restart',
        'newaliases',
    ]
    utils.run_commands(cmds)