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# vi: ts=4 expandtab
#
# Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# 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/>.
import os
from cloudinit import distros
from cloudinit import helpers
from cloudinit import log as logging
from cloudinit import util
from cloudinit.distros.parsers.hostname import HostnameConf
from cloudinit.settings import PER_INSTANCE
LOG = logging.getLogger(__name__)
class Distro(distros.Distro):
hostname_conf_fn = "/etc/hostname"
locale_conf_fn = "/etc/default/locale"
network_conf_fn = "/etc/network/interfaces"
tz_conf_fn = "/etc/timezone"
tz_local_fn = "/etc/localtime"
tz_zone_dir = "/usr/share/zoneinfo"
def __init__(self, name, cfg, paths):
distros.Distro.__init__(self, name, cfg, paths)
# This will be used to restrict certain
# calls from repeatly happening (when they
# should only happen say once per instance...)
self._runner = helpers.Runners(paths)
self.osfamily = 'debian'
def apply_locale(self, locale, out_fn=None):
if not out_fn:
out_fn = self.locale_conf_fn
util.subp(['locale-gen', locale], capture=False)
util.subp(['update-locale', locale], capture=False)
# "" provides trailing newline during join
lines = [
util.make_header(),
'LANG="%s"' % (locale),
"",
]
util.write_file(out_fn, "\n".join(lines))
def install_packages(self, pkglist):
self.update_package_sources()
self.package_command('install', pkglist)
def _write_network(self, settings):
util.write_file(self.network_conf_fn, settings)
return ['all']
def _bring_up_interfaces(self, device_names):
use_all = False
for d in device_names:
if d == 'all':
use_all = True
if use_all:
return distros.Distro._bring_up_interface(self, '--all')
else:
return distros.Distro._bring_up_interfaces(self, device_names)
def _select_hostname(self, hostname, fqdn):
# Prefer the short hostname over the long
# fully qualified domain name
if not hostname:
return fqdn
return hostname
def _write_hostname(self, your_hostname, out_fn):
conf = None
try:
# Try to update the previous one
# so lets see if we can read it first.
conf = self._read_hostname_conf(out_fn)
except IOError:
pass
if not conf:
conf = HostnameConf('')
conf.set_hostname(your_hostname)
util.write_file(out_fn, str(conf), 0644)
def _read_system_hostname(self):
sys_hostname = self._read_hostname(self.hostname_conf_fn)
return (self.hostname_conf_fn, sys_hostname)
def _read_hostname_conf(self, filename):
conf = HostnameConf(util.load_file(filename))
conf.parse()
return conf
def _read_hostname(self, filename, default=None):
hostname = None
try:
conf = self._read_hostname_conf(filename)
hostname = conf.hostname
except IOError:
pass
if not hostname:
return default
return hostname
def _get_localhost_ip(self):
# Note: http://www.leonardoborda.com/blog/127-0-1-1-ubuntu-debian/
return "127.0.1.1"
def set_timezone(self, tz):
# TODO(harlowja): move this code into
# the parent distro...
tz_file = os.path.join(self.tz_zone_dir, str(tz))
if not os.path.isfile(tz_file):
raise RuntimeError(("Invalid timezone %s,"
" no file found at %s") % (tz, tz_file))
# Note: "" provides trailing newline during join
tz_lines = [
util.make_header(),
str(tz),
"",
]
util.write_file(self.tz_conf_fn, "\n".join(tz_lines))
# This ensures that the correct tz will be used for the system
util.copy(tz_file, self.tz_local_fn)
def package_command(self, command, args=None):
e = os.environ.copy()
# See: http://tiny.cc/kg91fw
# Or: http://tiny.cc/mh91fw
e['DEBIAN_FRONTEND'] = 'noninteractive'
cmd = ['apt-get', '--option', 'Dpkg::Options::=--force-confold',
'--assume-yes', '--quiet', command]
if args:
cmd.extend(args)
# Allow the output of this to flow outwards (ie not be captured)
util.subp(cmd, env=e, capture=False)
def update_package_sources(self):
self._runner.run("update-sources", self.package_command,
["update"], freq=PER_INSTANCE)
def get_primary_arch(self):
(arch, _err) = util.subp(['dpkg', '--print-architecture'])
return str(arch).strip()
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