/
upgrade.py
238 lines (213 loc) · 9.43 KB
/
upgrade.py
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
#!/usr/bin/python
#
# Copyright (c) 2015 Juniper Networks, Inc. All rights reserved.
#
"""Base Contrail upgrade module."""
import os
import shutil
import argparse
import stat
from distutils.version import LooseVersion
from fabric.api import settings
from fabric.api import local
class ContrailUpgrade(object):
def __init__(self):
self.upgrade_data = {
'upgrade' : [],
'remove' : [],
'downgrade' : [],
'ensure' : [],
'backup' : ['/etc/contrail'],
'restore' : [],
'remove_config' : [],
'rename_config' : [],
'replace' : [],
}
def _parse_args(self, args_str):
'''
Base parser.
'''
# Source any specified config/ini file
# Turn off help, so we print all options in response to -h
conf_parser = argparse.ArgumentParser(add_help = False)
conf_parser.add_argument("-c", "--conf_file",
help="Specify config file", metavar="FILE")
conf_parser.add_argument("-F", "--from_rel", type=LooseVersion,
help="Release of contrail software installed in the node")
conf_parser.add_argument("-T", "--to_rel", type=LooseVersion,
help="Release of contrail software to be upgraded in the node")
conf_parser.add_argument("-P", "--packages", nargs='+', type=str,
help = "List of packages to be upgraded.")
conf_parser.add_argument("-R", "--roles", nargs='+', type=str,
help = "List of contrail roles provisioned in this node.")
args, self.remaining_argv = conf_parser.parse_known_args(args_str.split())
if args.conf_file:
config = ConfigParser.SafeConfigParser()
config.read([args.conf_file])
self.global_defaults.update(dict(config.items("GLOBAL")))
if args.roles:
self.global_defaults.update({'roles' : args.roles})
if args.packages:
self.global_defaults.update({'packages' : args.packages})
if args.from_rel:
self.global_defaults.update({'from_rel' : args.from_rel})
if args.to_rel:
self.global_defaults.update({'to_rel' : args.to_rel})
# Override with CLI options
# Don't surpress add_help here so it will handle -h
parser = argparse.ArgumentParser(
# Inherit options from config_parser
parents=[conf_parser],
# print script description with -h/--help
description=__doc__,
# Don't mess with format of description
formatter_class=argparse.RawDescriptionHelpFormatter,
)
parser.set_defaults(**self.global_defaults)
return parser
def _upgrade_package(self):
if not self.upgrade_data['upgrade']:
return
pkgs = ' '.join(self.upgrade_data['upgrade'])
if self.pdist in ['Ubuntu']:
if (self._args.from_rel >= LooseVersion('2.20') and
self._args.from_rel < LooseVersion('3.00') and
self._args.to_rel >= LooseVersion('3.00')):
cmd = 'DEBIAN_FRONTEND=noninteractive apt-get -y --force-yes'
cmd += ' -o Dpkg::Options::="--force-overwrite"'
cmd += ' -o Dpkg::Options::="--force-confmiss"'
cmd += ' -o Dpkg::Options::="--force-confnew" install %s' % pkgs
else:
cmd = 'DEBIAN_FRONTEND=noninteractive apt-get -y --force-yes'
cmd += ' -o Dpkg::Options::="--force-overwrite"'
cmd += ' -o Dpkg::Options::="--force-confnew" install %s' % pkgs
else:
local('yum clean all')
cmd = 'yum -y --disablerepo=* --enablerepo=contrail*'
cmd += ' install %s' % pkgs
local(cmd)
def _backup_config(self):
self.backup_dir = "/var/tmp/contrail-%s-%s-upgradesave" % \
(self._args.to_rel, self.get_build().split('~')[0])
for backup_elem in self.upgrade_data['backup']:
backup_config = self.backup_dir + backup_elem
if not os.path.exists(backup_config):
print "Backing up %s at: %s" % (backup_elem, backup_config)
backup_dir = os.path.dirname(os.path.abspath(backup_config))
if not os.path.exists(backup_dir):
os.makedirs(backup_dir)
if os.path.isfile(backup_elem):
shutil.copy2(backup_elem, backup_config)
elif os.path.isdir(backup_elem):
local('cp -rfp %s %s' % (backup_elem, backup_config))
else:
print "WARNING: [%s] is not present, no need to backup" % backup_elem
else:
print "Already the config dir %s is backed up at %s." %\
(backup_elem, backup_config)
def _restore_config(self):
for restore_elem in self.upgrade_data['restore']:
restore_config = self.backup_dir + restore_elem
print "Restoring %s to: %s" % (restore_config, restore_elem)
if os.path.isfile(restore_config):
shutil.copy2(restore_config, restore_elem)
elif os.path.isdir(restore_config):
local('cp -rfp %s %s' % ('%s/*' % restore_config, restore_elem))
else:
print "WARNING: [%s] is not backed up, no need to restore" % restore_elem
def _downgrade_package(self):
if not self.upgrade_data['downgrade']:
return
pkgs = ' '.join(self.upgrade_data['downgrade'])
if self.pdist in ['Ubuntu']:
cmd = 'DEBIAN_FRONTEND=noninteractive apt-get -y --force-yes'
cmd += ' -o Dpkg::Options::="--force-overwrite"'
cmd += ' -o Dpkg::Options::="--force-confnew"'
cmd += ' install %s' % pkgs
else:
cmd = 'yum -y --nogpgcheck --disablerepo=*'
cmd += ' --enablerepo=contrail* install %s' % pkgs
local(cmd)
def _remove_package(self):
if not self.upgrade_data['remove']:
return
pkgs = ' '.join(self.upgrade_data['remove'])
if self.pdist in ['Ubuntu']:
local('DEBIAN_FRONTEND=noninteractive apt-get -y remove --purge\
%s' % pkgs)
else:
local('rpm -e --nodeps %s' % pkgs)
def _replace_package(self):
if not self.upgrade_data['replace']:
return
rem_pkgs = ' '.join([x for (x,y) in self.upgrade_data['replace']])
add_pkgs = ' '.join([y for (x,y) in self.upgrade_data['replace']])
if self.pdist in ['Ubuntu']:
with settings(warn_only = True):
local('DEBIAN_FRONTEND=noninteractive apt-get -y remove --purge\
%s' % rem_pkgs)
local('DEBIAN_FRONTEND=noninteractive apt-get -y install --reinstall\
%s' % add_pkgs)
else:
with settings(warn_only = True):
local('rpm -e --nodeps %s' % rem_pkgs)
cmd = 'yum -y --nogpgcheck --disablerepo=*'
cmd += ' --enablerepo=contrail* install %s' % add_pkgs
local(cmd)
def _ensure_package(self):
if not self.upgrade_data['ensure']:
return
pkgs = ' '.join(self.upgrade_data['ensure'])
def _remove_config(self):
for remove_config in self.upgrade_data['remove_config']:
if os.path.isfile(remove_config):
os.remove(remove_config)
elif os.path.isdir(remove_config):
shutil.rmtree(remove_config)
else:
print "WARNING: [%s] is not present, no need to remove" % remove_config
def _rename_config(self):
for src, dst in self.upgrade_data['rename_config']:
if os.path.isfile(src):
shutil.copy2(src, dst)
os.remove(src)
elif os.path.isdir(src):
local('cp -rfp %s %s' % src, dst)
shutil.rmtree(src)
else:
print "WARNING: [%s] is not present, no need to rename" % src
def get_build(self, pkg='contrail-install-packages'):
pkg_rel = None
if self.pdist in ['centos', 'redhat']:
cmd = "rpm -q --queryformat '%%{RELEASE}' %s" %pkg
elif self.pdist in ['Ubuntu']:
cmd = "dpkg -s %s | grep Version: | cut -d' ' -f2 | cut -d'-' -f2" %pkg
pkg_rel = local(cmd, capture=True)
if 'is not installed' in pkg_rel or 'is not available' in pkg_rel:
print "Package %s not installed." % pkg
return None
return pkg_rel
def disable_apt_get_auto_start(self):
if self.pdist in ['Ubuntu']:
with open("/usr/sbin/policy-rc.d", "w+") as f:
f.write('#!/bin/sh\n')
f.write('exit 101\n')
f.close()
h = os.stat("/usr/sbin/policy-rc.d")
os.chmod("/usr/sbin/policy-rc.d", h.st_mode | stat.S_IEXEC)
def enable_apt_get_auto_start(self):
if self.pdist in ['Ubuntu']:
local('rm -f /usr/sbin/policy-rc.d')
def _upgrade(self):
self._backup_config()
if self.pdist in ['centos']:
self._remove_package()
self._ensure_package()
self._downgrade_package()
self._upgrade_package()
if self.pdist in ['Ubuntu']:
self._remove_package()
self._replace_package()
self._restore_config()
self._rename_config()
self._remove_config()