# 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 # Author: Juerg Haefliger # Author: Joshua Harlow # # 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 . 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__) APT_GET_COMMAND = ('apt-get', '--option=Dpkg::Options::=--force-confold', '--option=Dpkg::options::=--force-unsafe-io', '--assume-yes', '--quiet') 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" 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', pkgs=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): tz_file = self._find_tz_file(tz) # 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, pkgs=None): if pkgs is None: pkgs = [] e = os.environ.copy() # See: http://tiny.cc/kg91fw # Or: http://tiny.cc/mh91fw e['DEBIAN_FRONTEND'] = 'noninteractive' cmd = list(self.get_option("apt_get_command", APT_GET_COMMAND)) if args and isinstance(args, str): cmd.append(args) elif args and isinstance(args, list): cmd.extend(args) subcmd = command if command == "upgrade": subcmd = self.get_option("apt_get_upgrade_subcommand", "dist-upgrade") cmd.append(subcmd) 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, 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()