root / image_creator / os_type / unix.py @ ce66ae38
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1 | 121f3bc0 | Nikos Skalkotos | # -*- coding: utf-8 -*-
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2 | 121f3bc0 | Nikos Skalkotos | #
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3 | ae48a082 | Nikos Skalkotos | # Copyright 2012 GRNET S.A. All rights reserved.
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4 | ae48a082 | Nikos Skalkotos | #
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5 | ae48a082 | Nikos Skalkotos | # Redistribution and use in source and binary forms, with or
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6 | ae48a082 | Nikos Skalkotos | # without modification, are permitted provided that the following
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7 | ae48a082 | Nikos Skalkotos | # conditions are met:
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8 | ae48a082 | Nikos Skalkotos | #
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9 | ae48a082 | Nikos Skalkotos | # 1. Redistributions of source code must retain the above
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10 | ae48a082 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
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11 | ae48a082 | Nikos Skalkotos | # disclaimer.
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12 | ae48a082 | Nikos Skalkotos | #
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13 | ae48a082 | Nikos Skalkotos | # 2. Redistributions in binary form must reproduce the above
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14 | ae48a082 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
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15 | ae48a082 | Nikos Skalkotos | # disclaimer in the documentation and/or other materials
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16 | ae48a082 | Nikos Skalkotos | # provided with the distribution.
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17 | ae48a082 | Nikos Skalkotos | #
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18 | ae48a082 | Nikos Skalkotos | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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19 | ae48a082 | Nikos Skalkotos | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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20 | ae48a082 | Nikos Skalkotos | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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21 | ae48a082 | Nikos Skalkotos | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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22 | ae48a082 | Nikos Skalkotos | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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23 | ae48a082 | Nikos Skalkotos | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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24 | ae48a082 | Nikos Skalkotos | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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25 | ae48a082 | Nikos Skalkotos | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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26 | ae48a082 | Nikos Skalkotos | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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27 | ae48a082 | Nikos Skalkotos | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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28 | ae48a082 | Nikos Skalkotos | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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29 | ae48a082 | Nikos Skalkotos | # POSSIBILITY OF SUCH DAMAGE.
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30 | ae48a082 | Nikos Skalkotos | #
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31 | ae48a082 | Nikos Skalkotos | # The views and conclusions contained in the software and
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32 | ae48a082 | Nikos Skalkotos | # documentation are those of the authors and should not be
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33 | ae48a082 | Nikos Skalkotos | # interpreted as representing official policies, either expressed
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34 | ae48a082 | Nikos Skalkotos | # or implied, of GRNET S.A.
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35 | aa2062ba | Nikos Skalkotos | |
36 | 121f3bc0 | Nikos Skalkotos | """This module hosts OS-specific code common to all Unix-like OSs."""
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37 | 121f3bc0 | Nikos Skalkotos | |
38 | aa2062ba | Nikos Skalkotos | import re |
39 | aa2062ba | Nikos Skalkotos | |
40 | f165adc0 | Nikos Skalkotos | from image_creator.os_type import OSBase, sysprep |
41 | aa2062ba | Nikos Skalkotos | |
42 | 8c574358 | Nikos Skalkotos | |
43 | aa2062ba | Nikos Skalkotos | class Unix(OSBase): |
44 | 88f83027 | Nikos Skalkotos | """OS class for Unix"""
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45 | f8119e65 | Nikos Skalkotos | sensitive_userdata = [ |
46 | 2dcd42b7 | Nikos Skalkotos | '.history',
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47 | f8119e65 | Nikos Skalkotos | '.bash_history',
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48 | f8119e65 | Nikos Skalkotos | '.gnupg',
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49 | e36b5b14 | Nikos Skalkotos | '.ssh',
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50 | e36b5b14 | Nikos Skalkotos | '.kamakirc',
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51 | e36b5b14 | Nikos Skalkotos | '.kamaki.history'
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52 | f8119e65 | Nikos Skalkotos | ] |
53 | 0d5a999d | Nikos Skalkotos | |
54 | 71b0ab28 | Nikos Skalkotos | def _mountpoints(self): |
55 | 71b0ab28 | Nikos Skalkotos | """Return mountpoints in the correct order.
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56 | 71b0ab28 | Nikos Skalkotos | / should be mounted before /boot or /usr, /usr befor /usr/bin ...
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57 | 71b0ab28 | Nikos Skalkotos | """
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58 | 71b0ab28 | Nikos Skalkotos | mps = self.g.inspect_get_mountpoints(self.root) |
59 | 71b0ab28 | Nikos Skalkotos | |
60 | 71b0ab28 | Nikos Skalkotos | def compare(a, b): |
61 | 71b0ab28 | Nikos Skalkotos | if len(a[0]) > len(b[0]): |
62 | 71b0ab28 | Nikos Skalkotos | return 1 |
63 | 71b0ab28 | Nikos Skalkotos | elif len(a[0]) == len(b[0]): |
64 | 71b0ab28 | Nikos Skalkotos | return 0 |
65 | 71b0ab28 | Nikos Skalkotos | else:
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66 | 71b0ab28 | Nikos Skalkotos | return -1 |
67 | 71b0ab28 | Nikos Skalkotos | mps.sort(compare) |
68 | 71b0ab28 | Nikos Skalkotos | |
69 | 71b0ab28 | Nikos Skalkotos | for mp in mps: |
70 | 71b0ab28 | Nikos Skalkotos | yield mp
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71 | 71b0ab28 | Nikos Skalkotos | |
72 | 71b0ab28 | Nikos Skalkotos | def _do_mount(self, readonly): |
73 | 71b0ab28 | Nikos Skalkotos | """Mount partitions in the correct order"""
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74 | 71b0ab28 | Nikos Skalkotos | |
75 | 71b0ab28 | Nikos Skalkotos | critical_mpoints = ('/', '/etc', '/root', '/home', '/var') |
76 | 71b0ab28 | Nikos Skalkotos | |
77 | 71b0ab28 | Nikos Skalkotos | mopts = 'ro' if readonly else 'rw' |
78 | 71b0ab28 | Nikos Skalkotos | for mp, dev in self._mountpoints(): |
79 | 71b0ab28 | Nikos Skalkotos | try:
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80 | 71b0ab28 | Nikos Skalkotos | self.g.mount_options(mopts, dev, mp)
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81 | 71b0ab28 | Nikos Skalkotos | except RuntimeError as msg: |
82 | 121f3bc0 | Nikos Skalkotos | if mp in critical_mpoints: |
83 | 71b0ab28 | Nikos Skalkotos | self.out.warn('unable to mount %s. Reason: %s' % (mp, msg)) |
84 | 71b0ab28 | Nikos Skalkotos | return False |
85 | 71b0ab28 | Nikos Skalkotos | else:
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86 | 71b0ab28 | Nikos Skalkotos | self.out.warn('%s (ignored)' % msg) |
87 | 71b0ab28 | Nikos Skalkotos | |
88 | 71b0ab28 | Nikos Skalkotos | return True |
89 | aa2062ba | Nikos Skalkotos | |
90 | f165adc0 | Nikos Skalkotos | @sysprep()
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91 | f165adc0 | Nikos Skalkotos | def cleanup_cache(self, print_header=True): |
92 | f8119e65 | Nikos Skalkotos | """Remove all regular files under /var/cache"""
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93 | 22a6d232 | Nikos Skalkotos | |
94 | 3f70f242 | Nikos Skalkotos | if print_header:
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95 | e77e66a9 | Nikos Skalkotos | self.out.output('Removing files under /var/cache') |
96 | 22a6d232 | Nikos Skalkotos | |
97 | 121f3bc0 | Nikos Skalkotos | self._foreach_file('/var/cache', self.g.rm, ftype='r') |
98 | 0d5a999d | Nikos Skalkotos | |
99 | f165adc0 | Nikos Skalkotos | @sysprep()
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100 | f165adc0 | Nikos Skalkotos | def cleanup_tmp(self, print_header=True): |
101 | f8119e65 | Nikos Skalkotos | """Remove all files under /tmp and /var/tmp"""
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102 | 22a6d232 | Nikos Skalkotos | |
103 | 3f70f242 | Nikos Skalkotos | if print_header:
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104 | e77e66a9 | Nikos Skalkotos | self.out.output('Removing files under /tmp and /var/tmp') |
105 | 22a6d232 | Nikos Skalkotos | |
106 | 121f3bc0 | Nikos Skalkotos | self._foreach_file('/tmp', self.g.rm_rf, maxdepth=1) |
107 | 121f3bc0 | Nikos Skalkotos | self._foreach_file('/var/tmp', self.g.rm_rf, maxdepth=1) |
108 | 0d5a999d | Nikos Skalkotos | |
109 | f165adc0 | Nikos Skalkotos | @sysprep()
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110 | f165adc0 | Nikos Skalkotos | def cleanup_log(self, print_header=True): |
111 | f8119e65 | Nikos Skalkotos | """Empty all files under /var/log"""
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112 | 22a6d232 | Nikos Skalkotos | |
113 | 3f70f242 | Nikos Skalkotos | if print_header:
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114 | e77e66a9 | Nikos Skalkotos | self.out.output('Emptying all files under /var/log') |
115 | 22a6d232 | Nikos Skalkotos | |
116 | 121f3bc0 | Nikos Skalkotos | self._foreach_file('/var/log', self.g.truncate, ftype='r') |
117 | 0d5a999d | Nikos Skalkotos | |
118 | f165adc0 | Nikos Skalkotos | @sysprep(enabled=False) |
119 | f165adc0 | Nikos Skalkotos | def cleanup_mail(self, print_header=True): |
120 | f8119e65 | Nikos Skalkotos | """Remove all files under /var/mail and /var/spool/mail"""
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121 | 22a6d232 | Nikos Skalkotos | |
122 | 3f70f242 | Nikos Skalkotos | if print_header:
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123 | e77e66a9 | Nikos Skalkotos | self.out.output('Removing files under /var/mail & /var/spool/mail') |
124 | 22a6d232 | Nikos Skalkotos | |
125 | a0909794 | Nikos Skalkotos | if self.g.is_dir('/var/spool/mail'): |
126 | 121f3bc0 | Nikos Skalkotos | self._foreach_file('/var/spool/mail', self.g.rm_rf, maxdepth=1) |
127 | a0909794 | Nikos Skalkotos | |
128 | 121f3bc0 | Nikos Skalkotos | self._foreach_file('/var/mail', self.g.rm_rf, maxdepth=1) |
129 | 9297c398 | Nikos Skalkotos | |
130 | f165adc0 | Nikos Skalkotos | @sysprep()
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131 | f165adc0 | Nikos Skalkotos | def cleanup_userdata(self, print_header=True): |
132 | f8119e65 | Nikos Skalkotos | """Delete sensitive userdata"""
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133 | 22a6d232 | Nikos Skalkotos | |
134 | 6df939f7 | Nikos Skalkotos | homedirs = ['/root']
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135 | 6df939f7 | Nikos Skalkotos | if self.g.is_dir('/home/'): |
136 | 121f3bc0 | Nikos Skalkotos | homedirs += self._ls('/home/') |
137 | 0d5a999d | Nikos Skalkotos | |
138 | 3f70f242 | Nikos Skalkotos | if print_header:
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139 | f99fe99d | Nikos Skalkotos | self.out.output("Removing sensitive user data under %s" % |
140 | f99fe99d | Nikos Skalkotos | " ".join(homedirs))
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141 | 3f70f242 | Nikos Skalkotos | |
142 | ce66ae38 | Nikos Skalkotos | action = self.g.rm_rf
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143 | ce66ae38 | Nikos Skalkotos | if self._scrub_support: |
144 | ce66ae38 | Nikos Skalkotos | action = self.g.scrub_file
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145 | ce66ae38 | Nikos Skalkotos | else:
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146 | ce66ae38 | Nikos Skalkotos | self.out.warn("Sensitive data won't be scrubbed (not supported)") |
147 | 0d5a999d | Nikos Skalkotos | for homedir in homedirs: |
148 | 0d5a999d | Nikos Skalkotos | for data in self.sensitive_userdata: |
149 | 0d5a999d | Nikos Skalkotos | fname = "%s/%s" % (homedir, data)
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150 | 0d5a999d | Nikos Skalkotos | if self.g.is_file(fname): |
151 | ce66ae38 | Nikos Skalkotos | action(fname) |
152 | e1e7b843 | Nikos Skalkotos | elif self.g.is_dir(fname): |
153 | ce66ae38 | Nikos Skalkotos | self._foreach_file(fname, action, ftype='r') |
154 | aa2062ba | Nikos Skalkotos | |
155 | aa2062ba | Nikos Skalkotos | # vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |