1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
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 Exception(("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)
|
