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# vi: ts=4 expandtab
#
# Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012, 2013 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/>.
from cloudinit import distros
from cloudinit import helpers
from cloudinit import log as logging
from cloudinit import util
from cloudinit.distros import net_util
from cloudinit.distros import rhel_util
from cloudinit.settings import PER_INSTANCE
LOG = logging.getLogger(__name__)
def _make_sysconfig_bool(val):
if val:
return 'yes'
else:
return 'no'
class Distro(distros.Distro):
# See: http://tiny.cc/6r99fw
clock_conf_fn = "/etc/sysconfig/clock"
locale_conf_fn = '/etc/sysconfig/i18n'
systemd_locale_conf_fn = '/etc/locale.conf'
network_conf_fn = "/etc/sysconfig/network"
hostname_conf_fn = "/etc/sysconfig/network"
systemd_hostname_conf_fn = "/etc/hostname"
network_script_tpl = '/etc/sysconfig/network-scripts/ifcfg-%s'
resolve_conf_fn = "/etc/resolv.conf"
tz_local_fn = "/etc/localtime"
usr_lib_exec = "/usr/libexec"
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 = 'redhat'
def install_packages(self, pkglist):
self.package_command('install', pkgs=pkglist)
def _write_network(self, settings):
# TODO(harlowja) fix this... since this is the ubuntu format
entries = net_util.translate_network(settings)
LOG.debug("Translated ubuntu style network settings %s into %s",
settings, entries)
# Make the intermediate format as the rhel format...
nameservers = []
searchservers = []
dev_names = entries.keys()
use_ipv6 = False
for (dev, info) in entries.items():
net_fn = self.network_script_tpl % (dev)
net_cfg = {
'DEVICE': dev,
'NETMASK': info.get('netmask'),
'IPADDR': info.get('address'),
'BOOTPROTO': info.get('bootproto'),
'GATEWAY': info.get('gateway'),
'BROADCAST': info.get('broadcast'),
'MACADDR': info.get('hwaddress'),
'ONBOOT': _make_sysconfig_bool(info.get('auto')),
}
if info.get('inet6'):
use_ipv6 = True
net_cfg.update({
'IPV6INIT': _make_sysconfig_bool(True),
'IPV6ADDR': info.get('ipv6').get('address'),
'IPV6_DEFAULTGW': info.get('ipv6').get('gateway'),
})
rhel_util.update_sysconfig_file(net_fn, net_cfg)
if 'dns-nameservers' in info:
nameservers.extend(info['dns-nameservers'])
if 'dns-search' in info:
searchservers.extend(info['dns-search'])
if nameservers or searchservers:
rhel_util.update_resolve_conf_file(self.resolve_conf_fn,
nameservers, searchservers)
if dev_names:
net_cfg = {
'NETWORKING': _make_sysconfig_bool(True),
}
# If IPv6 interface present, enable ipv6 networking
if use_ipv6:
net_cfg['NETWORKING_IPV6'] = _make_sysconfig_bool(True)
net_cfg['IPV6_AUTOCONF'] = _make_sysconfig_bool(False)
rhel_util.update_sysconfig_file(self.network_conf_fn, net_cfg)
return dev_names
def uses_systemd(self):
# Fedora 18 and RHEL 7 were the first adopters in their series
(dist, vers) = util.system_info()['dist'][:2]
major = (int)(vers.split('.')[0])
return ((dist.startswith('Red Hat Enterprise Linux') and major >= 7)
or (dist.startswith('Fedora') and major >= 18))
def apply_locale(self, locale, out_fn=None):
if self.uses_systemd():
if not out_fn:
out_fn = self.systemd_locale_conf_fn
out_fn = self.systemd_locale_conf_fn
else:
if not out_fn:
out_fn = self.locale_conf_fn
locale_cfg = {
'LANG': locale,
}
rhel_util.update_sysconfig_file(out_fn, locale_cfg)
def _write_hostname(self, hostname, out_fn):
if self.uses_systemd():
util.subp(['hostnamectl', 'set-hostname', str(hostname)])
else:
host_cfg = {
'HOSTNAME': hostname,
}
rhel_util.update_sysconfig_file(out_fn, host_cfg)
def _select_hostname(self, hostname, fqdn):
# See: http://bit.ly/TwitgL
# Should be fqdn if we can use it
if fqdn:
return fqdn
return hostname
def _read_system_hostname(self):
if self.uses_systemd():
host_fn = self.systemd_hostname_conf_fn
else:
host_fn = self.hostname_conf_fn
return (host_fn, self._read_hostname(host_fn))
def _read_hostname(self, filename, default=None):
if self.uses_systemd():
(out, _err) = util.subp(['hostname'])
if len(out):
return out
else:
return default
else:
(_exists, contents) = rhel_util.read_sysconfig_file(filename)
if 'HOSTNAME' in contents:
return contents['HOSTNAME']
else:
return default
def _bring_up_interfaces(self, device_names):
if device_names and 'all' in device_names:
raise RuntimeError(('Distro %s can not translate '
'the device name "all"') % (self.name))
return distros.Distro._bring_up_interfaces(self, device_names)
def set_timezone(self, tz):
tz_file = self._find_tz_file(tz)
if self.uses_systemd():
# Currently, timedatectl complains if invoked during startup
# so for compatibility, create the link manually.
util.del_file(self.tz_local_fn)
util.sym_link(tz_file, self.tz_local_fn)
else:
# Adjust the sysconfig clock zone setting
clock_cfg = {
'ZONE': str(tz),
}
rhel_util.update_sysconfig_file(self.clock_conf_fn, clock_cfg)
# 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, pkgs=None):
if pkgs is None:
pkgs = []
cmd = ['yum']
# If enabled, then yum will be tolerant of errors on the command line
# with regard to packages.
# For example: if you request to install foo, bar and baz and baz is
# installed; yum won't error out complaining that baz is already
# installed.
cmd.append("-t")
# Determines whether or not yum prompts for confirmation
# of critical actions. We don't want to prompt...
cmd.append("-y")
if args and isinstance(args, str):
cmd.append(args)
elif args and isinstance(args, list):
cmd.extend(args)
cmd.append(command)
pkglist = util.expand_package_list('%s-%s', pkgs)
cmd.extend(pkglist)
# Allow the output of this to flow outwards (ie not be captured)
util.subp(cmd, capture=False)
def update_package_sources(self):
self._runner.run("update-sources", self.package_command,
["makecache"], freq=PER_INSTANCE)
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