diff options
Diffstat (limited to 'cloudinit/distros/debian.py')
| -rw-r--r-- | cloudinit/distros/debian.py | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/cloudinit/distros/debian.py b/cloudinit/distros/debian.py new file mode 100644 index 00000000..b23945d8 --- /dev/null +++ b/cloudinit/distros/debian.py @@ -0,0 +1,149 @@ +# 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.settings import PER_INSTANCE + +LOG = logging.getLogger(__name__) + + +class Distro(distros.Distro): + + 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) + + def apply_locale(self, locale, out_fn=None): + if not out_fn: + out_fn = self._paths.join(False, '/etc/default/locale') + util.subp(['locale-gen', locale], capture=False) + util.subp(['update-locale', locale], capture=False) + contents = [ + "# Created by cloud-init", + 'LANG="%s"' % (locale), + ] + util.write_file(out_fn, "\n".join(contents)) + + def install_packages(self, pkglist): + self._update_package_sources() + self.package_command('install', pkglist) + + def _write_network(self, settings): + net_fn = self._paths.join(False, "/etc/network/interfaces") + util.write_file(net_fn, settings) + + def set_hostname(self, hostname): + out_fn = self._paths.join(False, "/etc/hostname") + self._write_hostname(hostname, out_fn) + if out_fn == '/etc/hostname': + # Only do this if we are running in non-adjusted root mode + LOG.debug("Setting hostname to %s", hostname) + util.subp(['hostname', hostname]) + + def _write_hostname(self, hostname, out_fn): + lines = [] + lines.append("# Created by cloud-init") + lines.append(str(hostname)) + contents = "\n".join(lines) + util.write_file(out_fn, contents, 0644) + + def update_hostname(self, hostname, prev_fn): + hostname_prev = self._read_hostname(prev_fn) + read_fn = self._paths.join(True, "/etc/hostname") + hostname_in_etc = self._read_hostname(read_fn) + update_files = [] + if not hostname_prev or hostname_prev != hostname: + update_files.append(prev_fn) + if (not hostname_in_etc or + (hostname_in_etc == hostname_prev and + hostname_in_etc != hostname)): + write_fn = self._paths.join(False, "/etc/hostname") + update_files.append(write_fn) + for fn in update_files: + try: + self._write_hostname(hostname, fn) + except: + util.logexc(LOG, "Failed to write hostname %s to %s", + hostname, fn) + if (hostname_in_etc and hostname_prev and + hostname_in_etc != hostname_prev): + LOG.debug(("%s differs from /etc/hostname." + " Assuming user maintained hostname."), prev_fn) + if "/etc/hostname" in update_files: + # Only do this if we are running in non-adjusted root mode + LOG.debug("Setting hostname to %s", hostname) + util.subp(['hostname', hostname]) + + def _read_hostname(self, filename, default=None): + contents = util.load_file(filename, quiet=True) + for line in contents.splitlines(): + c_pos = line.find("#") + # Handle inline comments + if c_pos != -1: + line = line[0:c_pos] + line_c = line.strip() + if line_c: + return line_c + return default + + 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 = os.path.join("/usr/share/zoneinfo", tz) + if not os.path.isfile(tz_file): + raise RuntimeError(("Invalid timezone %s," + " no file found at %s") % (tz, tz_file)) + tz_lines = [ + "# Created by cloud-init", + str(tz), + ] + tz_contents = "\n".join(tz_lines) + tz_fn = self._paths.join(False, "/etc/timezone") + util.write_file(tz_fn, tz_contents) + util.copy(tz_file, self._paths.join(False, "/etc/localtime")) + + 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', 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) |