223 lines
8.3 KiB
Python
223 lines
8.3 KiB
Python
# vi: ts=4 expandtab
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#
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# Copyright (C) 2012 Canonical Ltd.
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# Copyright (C) 2012, 2013 Hewlett-Packard Development Company, L.P.
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# Copyright (C) 2012 Yahoo! Inc.
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#
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# Author: Scott Moser <scott.moser@canonical.com>
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# Author: Juerg Haefliger <juerg.haefliger@hp.com>
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# Author: Joshua Harlow <harlowja@yahoo-inc.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 3, as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from cloudinit import distros
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from cloudinit import helpers
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from cloudinit import log as logging
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from cloudinit import util
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from cloudinit.distros import net_util
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from cloudinit.distros import rhel_util
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from cloudinit.settings import PER_INSTANCE
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LOG = logging.getLogger(__name__)
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def _make_sysconfig_bool(val):
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if val:
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return 'yes'
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else:
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return 'no'
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class Distro(distros.Distro):
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# See: http://tiny.cc/6r99fw
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clock_conf_fn = "/etc/sysconfig/clock"
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locale_conf_fn = '/etc/sysconfig/i18n'
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systemd_locale_conf_fn = '/etc/locale.conf'
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network_conf_fn = "/etc/sysconfig/network"
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hostname_conf_fn = "/etc/sysconfig/network"
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systemd_hostname_conf_fn = "/etc/hostname"
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network_script_tpl = '/etc/sysconfig/network-scripts/ifcfg-%s'
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resolve_conf_fn = "/etc/resolv.conf"
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tz_local_fn = "/etc/localtime"
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def __init__(self, name, cfg, paths):
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distros.Distro.__init__(self, name, cfg, paths)
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# This will be used to restrict certain
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# calls from repeatly happening (when they
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# should only happen say once per instance...)
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self._runner = helpers.Runners(paths)
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self.osfamily = 'redhat'
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def install_packages(self, pkglist):
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self.package_command('install', pkgs=pkglist)
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def _write_network(self, settings):
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# TODO(harlowja) fix this... since this is the ubuntu format
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entries = net_util.translate_network(settings)
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LOG.debug("Translated ubuntu style network settings %s into %s",
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settings, entries)
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# Make the intermediate format as the rhel format...
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nameservers = []
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searchservers = []
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dev_names = entries.keys()
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use_ipv6 = False
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for (dev, info) in entries.iteritems():
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net_fn = self.network_script_tpl % (dev)
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net_cfg = {
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'DEVICE': dev,
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'NETMASK': info.get('netmask'),
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'IPADDR': info.get('address'),
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'BOOTPROTO': info.get('bootproto'),
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'GATEWAY': info.get('gateway'),
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'BROADCAST': info.get('broadcast'),
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'MACADDR': info.get('hwaddress'),
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'ONBOOT': _make_sysconfig_bool(info.get('auto')),
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}
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if info.get('inet6'):
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use_ipv6 = True
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net_cfg.update({
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'IPV6INIT': _make_sysconfig_bool(True),
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'IPV6ADDR': info.get('ipv6').get('address'),
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'IPV6_DEFAULTGW': info.get('ipv6').get('gateway'),
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})
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rhel_util.update_sysconfig_file(net_fn, net_cfg)
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if 'dns-nameservers' in info:
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nameservers.extend(info['dns-nameservers'])
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if 'dns-search' in info:
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searchservers.extend(info['dns-search'])
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if nameservers or searchservers:
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rhel_util.update_resolve_conf_file(self.resolve_conf_fn,
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nameservers, searchservers)
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if dev_names:
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net_cfg = {
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'NETWORKING': _make_sysconfig_bool(True),
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}
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# If IPv6 interface present, enable ipv6 networking
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if use_ipv6:
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net_cfg['NETWORKING_IPV6'] = _make_sysconfig_bool(True)
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net_cfg['IPV6_AUTOCONF'] = _make_sysconfig_bool(False)
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rhel_util.update_sysconfig_file(self.network_conf_fn, net_cfg)
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return dev_names
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def uses_systemd(self):
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# Fedora 18 and RHEL 7 were the first adopters in their series
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(dist, vers) = util.system_info()['dist'][:2]
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major = (int)(vers.split('.')[0])
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return ((dist.startswith('Red Hat Enterprise Linux') and major >= 7)
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or (dist.startswith('Fedora') and major >= 18))
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def apply_locale(self, locale, out_fn=None):
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if self.uses_systemd():
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if not out_fn:
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out_fn = self.systemd_locale_conf_fn
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out_fn = self.systemd_locale_conf_fn
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else:
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if not out_fn:
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out_fn = self.locale_conf_fn
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locale_cfg = {
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'LANG': locale,
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}
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rhel_util.update_sysconfig_file(out_fn, locale_cfg)
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def _write_hostname(self, hostname, out_fn):
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if self.uses_systemd():
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util.subp(['hostnamectl', 'set-hostname', str(hostname)])
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else:
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host_cfg = {
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'HOSTNAME': hostname,
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}
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rhel_util.update_sysconfig_file(out_fn, host_cfg)
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def _select_hostname(self, hostname, fqdn):
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# See: http://bit.ly/TwitgL
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# Should be fqdn if we can use it
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if fqdn:
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return fqdn
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return hostname
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def _read_system_hostname(self):
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if self.uses_systemd():
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host_fn = self.systemd_hostname_conf_fn
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else:
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host_fn = self.hostname_conf_fn
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return (host_fn, self._read_hostname(host_fn))
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def _read_hostname(self, filename, default=None):
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if self.uses_systemd():
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(out, _err) = util.subp(['hostname'])
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if len(out):
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return out
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else:
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return default
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else:
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(_exists, contents) = rhel_util.read_sysconfig_file(filename)
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if 'HOSTNAME' in contents:
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return contents['HOSTNAME']
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else:
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return default
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def _bring_up_interfaces(self, device_names):
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if device_names and 'all' in device_names:
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raise RuntimeError(('Distro %s can not translate '
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'the device name "all"') % (self.name))
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return distros.Distro._bring_up_interfaces(self, device_names)
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def set_timezone(self, tz):
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tz_file = self._find_tz_file(tz)
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if self.uses_systemd():
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# Currently, timedatectl complains if invoked during startup
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# so for compatibility, create the link manually.
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util.del_file(self.tz_local_fn)
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util.sym_link(tz_file, self.tz_local_fn)
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else:
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# Adjust the sysconfig clock zone setting
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clock_cfg = {
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'ZONE': str(tz),
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}
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rhel_util.update_sysconfig_file(self.clock_conf_fn, clock_cfg)
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# This ensures that the correct tz will be used for the system
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util.copy(tz_file, self.tz_local_fn)
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def package_command(self, command, args=None, pkgs=None):
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if pkgs is None:
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pkgs = []
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cmd = ['yum']
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# If enabled, then yum will be tolerant of errors on the command line
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# with regard to packages.
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# For example: if you request to install foo, bar and baz and baz is
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# installed; yum won't error out complaining that baz is already
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# installed.
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cmd.append("-t")
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# Determines whether or not yum prompts for confirmation
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# of critical actions. We don't want to prompt...
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cmd.append("-y")
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if args and isinstance(args, str):
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cmd.append(args)
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elif args and isinstance(args, list):
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cmd.extend(args)
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cmd.append(command)
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pkglist = util.expand_package_list('%s-%s', pkgs)
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cmd.extend(pkglist)
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# Allow the output of this to flow outwards (ie not be captured)
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util.subp(cmd, capture=False)
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def update_package_sources(self):
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self._runner.run("update-sources", self.package_command,
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["makecache"], freq=PER_INSTANCE)
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