-
Notifications
You must be signed in to change notification settings - Fork 23
/
galera_setup.py
executable file
·254 lines (228 loc) · 12.6 KB
/
galera_setup.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
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
#!/usr/bin/python
#
# Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
#
import os
import sys
import argparse
import ConfigParser
import time
from fabric.api import local,run
from fabric.context_managers import lcd, hide, settings
from fabric.operations import get, put
from contrail_provisioning.common.base import ContrailSetup
from contrail_provisioning.openstack.ha.templates import galera_param_template
from contrail_provisioning.openstack.ha.templates import cmon_param_template
from contrail_provisioning.openstack.ha.templates import cmon_conf_template
from contrail_provisioning.openstack.ha.templates import wsrep_conf_template
from contrail_provisioning.openstack.ha.templates import wsrep_conf_centos_template
class GaleraSetup(ContrailSetup):
def __init__(self, args_str = None):
super(GaleraSetup, self).__init__()
self.global_defaults = {
'self_ip': '127.0.0.1',
'keystone_ip': '127.0.0.1',
'openstack0_user': 'root',
'openstack0_password': 'c0ntrail123',
}
self._args = None
if not args_str:
args_str = ' '.join(sys.argv[1:])
self.parse_args(args_str)
self.mysql_redo_log_sz = '5242880'
def parse_args(self, args_str):
'''
Eg. setup-vnc-galera --openstack0_user root --openstack0_password c0ntrail123 --self_ip 10.1.5.11
--keystone_ip 10.1.5.11 --galera_ip_list 10.1.5.11 10.1.5.12 --openstack_index 1
--internal_vip 10.1.5.13
'''
parser = self._parse_args(args_str)
parser.add_argument("--self_ip", help = "IP Address of this system")
parser.add_argument("--keystone_ip", help = "IP Address of keystone node or Virtual IP of the cluster nodes.")
parser.add_argument("--openstack_index", help = "The index of this openstack node", type = int)
parser.add_argument("--openstack0_user", help = "Sudo user of this openstack node")
parser.add_argument("--openstack0_passwd", help = "Sudo user password of this openstack node")
parser.add_argument("--galera_ip_list", help = "List of IP Addresses of galera servers", nargs='+', type=str)
parser.add_argument("--internal_vip", help = "Virtual IPP Addresses of HA Openstack nodes"),
self._args = parser.parse_args(self.remaining_argv)
def fixup_config_files(self):
with settings(warn_only=True):
local("service contrail-hamon stop")
local("service cmon stop")
local("service mysql stop")
local("rm -rf /var/lib/mysql/grastate.dat")
local("rm -rf /var/lib/mysql/galera.cache")
self.cleanup_redo_log()
# fix galera_param
template_vals = {'__mysql_host__' : self._args.self_ip,
'__mysql_wsrep_nodes__' :
'"' + '" "'.join(self._args.galera_ip_list) + '"'}
self._template_substitute_write(galera_param_template.template,
template_vals,
self._temp_dir_name + '/galera_param')
local("sudo mv %s/galera_param /etc/contrail/ha/" % (self._temp_dir_name))
# fix cmon_param
template_vals = {'__internal_vip__' : self._args.internal_vip,
'__haproxy_dips__' :
'"' + '" "'.join(self._args.galera_ip_list) + '"'}
self._template_substitute_write(cmon_param_template.template,
template_vals,
self._temp_dir_name + '/cmon_param')
local("sudo mv %s/cmon_param /etc/contrail/ha/" % (self._temp_dir_name))
local("echo %s > /etc/contrail/galeraid" % self._args.openstack_index)
if self.pdist in ['Ubuntu']:
local("ln -sf /bin/true /sbin/chkconfig")
self.mysql_svc = 'mysql'
self.mysql_conf = '/etc/mysql/my.cnf'
wsrep_conf = '/etc/mysql/conf.d/wsrep.cnf'
wsrep_conf_file = 'wsrep.cnf'
wsrep_template = wsrep_conf_template.template
elif self.pdist in ['centos', 'redhat']:
self.mysql_svc = 'mysqld'
self.mysql_conf = '/etc/my.cnf'
wsrep_conf = self.mysql_conf
wsrep_conf_file = 'my.cnf'
wsrep_template = wsrep_conf_centos_template.template
self.mysql_token_file = '/etc/contrail/mysql.token'
self.install_mysql_db()
if self._args.openstack_index == 1:
self.create_mysql_token_file()
else:
self.get_mysql_token_file()
self.set_mysql_root_password()
self.setup_grants()
self.setup_cron()
# fixup mysql/wsrep config
local('sed -i -e "s/bind-address/#bind-address/" %s' % self.mysql_conf)
local('sed -ibak "s/max_connections.*/max_connections=10000/" %s' % self.mysql_conf)
local('sed -i -e "s/key_buffer/#key_buffer/" %s' % self.mysql_conf)
local('sed -i -e "s/max_allowed_packet/#max_allowed_packet/" %s' % self.mysql_conf)
local('sed -i -e "s/thread_stack/#thread_stack/" %s' % self.mysql_conf)
local('sed -i -e "s/thread_cache_size/#thread_cache_size/" %s' % self.mysql_conf)
local('sed -i -e "s/myisam-recover/#myisam-recover/" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\lock_wait_timeout=600" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\interactive_timeout = 60" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\wait_timeout = 60" %s' % self.mysql_conf)
# FIX for UTF8
if self.pdist in ['Ubuntu']:
sku = local("dpkg -p contrail-install-packages | grep Version: | cut -d'~' -f2", capture=True)
if sku == 'icehouse':
local('sed -i "/\[mysqld\]/a\character-set-server = utf8" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\init-connect=\'SET NAMES utf8\'" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\collation-server = utf8_general_ci" %s' % self.mysql_conf)
if self._args.openstack_index == 1:
wsrep_cluster_address= ''
else:
wsrep_cluster_address = (':4567,'.join(self._args.galera_ip_list) + ':4567')
template_vals = {'__wsrep_nodes__' : wsrep_cluster_address,
'__wsrep_node_address__' : self._args.self_ip,
'__mysql_token__' : self.mysql_token,
'__wsrep_cluster_size__': len(self._args.galera_ip_list),
'__wsrep_inc_offset__': self._args.openstack_index*100,
}
self._template_substitute_write(wsrep_template, template_vals,
self._temp_dir_name + '/%s' % wsrep_conf_file)
local("sudo mv %s/%s %s" % (self._temp_dir_name, wsrep_conf_file,
wsrep_conf))
if self._args.openstack_index == 1:
local('sed -ibak "s#wsrep_cluster_address=.*#wsrep_cluster_address=gcomm://#g" %s' % (wsrep_conf))
# fixup cmon config
template_vals = {'__mysql_nodes__' : ','.join(self._args.galera_ip_list),
'__mysql_node_address__' : self._args.internal_vip,
}
self._template_substitute_write(cmon_conf_template.template, template_vals,
self._temp_dir_name + '/cmon.cnf')
local("sudo mv %s/cmon.cnf /etc/cmon.cnf" % (self._temp_dir_name))
def install_mysql_db(self):
local('chkconfig %s on' % self.mysql_svc)
local('chown -R mysql:mysql /var/lib/mysql/')
with settings(warn_only=True):
install_db = local("service %s restart" % self.mysql_svc).failed
if install_db:
local('mysql_install_db --user=mysql --ldata=/var/lib/mysql')
self.cleanup_redo_log()
local("service %s restart" % self.mysql_svc)
def create_mysql_token_file(self):
# Use MYSQL_ROOT_PW from the environment or generate a new password
if os.path.isfile(self.mysql_token_file):
self.mysql_token = local('cat %s' % self.mysql_token_file, capture=True).strip()
else:
if os.environ.get('MYSQL_ROOT_PW'):
self.mysql_token = os.environ.get('MYSQL_ROOT_PW')
else:
self.mysql_token = local('openssl rand -hex 10', capture=True).strip()
local("echo %s > %s" % (self.mysql_token, self.mysql_token_file))
local("chmod 400 %s" % self.mysql_token_file)
def get_mysql_token_file(self):
retries = 10
if not os.path.isfile(self.mysql_token_file):
while retries:
with settings(host_string = '%s@%s' % (self._args.openstack0_user, self._args.galera_ip_list[0]),
password=self._args.openstack0_passwd, warn_only=True):
if get('%s' % self.mysql_token_file, '/etc/contrail/').failed:
time.sleep(1)
retries -= 1
print " Retry(%s) to get the %s." % ((5 - retries), self.mysql_token_file)
else:
break
self.mysql_token = local('cat %s' % self.mysql_token_file, capture=True).strip()
def set_mysql_root_password(self):
# Only for the very first time
mysql_priv_access = "mysql -uroot -e"
# Set root password for mysql
with settings(warn_only=True):
if local('echo show databases |mysql -u root > /dev/null').succeeded:
local('%s "use mysql; update user set password=password(\'%s\') where user=\'root\'"' % (mysql_priv_access, self.mysql_token))
local('mysqladmin password %s' % self.mysql_token)
elif local('echo show databases |mysql -u root -p%s> /dev/null' % self.mysql_token).succeeded:
print "Mysql root password is already set to '%s'" % self.mysql_token
else:
raise RuntimeError("MySQL root password unknown, reset and retry")
def setup_grants(self):
mysql_cmd = "mysql --defaults-file=%s -uroot -p%s -e" % (self.mysql_conf, self.mysql_token)
host_list = self._args.galera_ip_list + ['localhost', '127.0.0.1']
for host in host_list:
with settings(hide('everything'),warn_only=True):
local('mysql -u root -p%s -e "CREATE USER \'root\'@\'%s\' IDENTIFIED BY %s"' % (self.mysql_token, host, self.mysql_token))
local('%s "SET WSREP_ON=0;SET SQL_LOG_BIN=0; GRANT ALL ON *.* TO root@%s IDENTIFIED BY \'%s\'"' %
(mysql_cmd, host, self.mysql_token))
local('%s "SET wsrep_on=OFF; DELETE FROM mysql.user WHERE user=\'\'"' % mysql_cmd)
local('%s "FLUSH PRIVILEGES"' % mysql_cmd)
def setup_cron(self):
with settings(hide('everything'), warn_only=True):
local('crontab -l > %s/galera_cron' % self._temp_dir_name)
local('echo "0,30 * * * * /opt/contrail/bin/contrail-token-clean.sh" >> %s/galera_cron' % self._temp_dir_name)
local('crontab %s/galera_cron' % self._temp_dir_name)
local('rm %s/galera_cron' % self._temp_dir_name)
def run_services(self):
self.cleanup_redo_log()
if self._args.openstack_index == 1:
local("service %s restart" % self.mysql_svc)
else:
cmd = "mysql -h%s -uroot -p%s " % (self._args.galera_ip_list[0], self.mysql_token)
cmd += "-e \"show global status where variable_name='wsrep_local_state'\" | awk '{print $2}' | sed '1d'"
for i in range(10):
wsrep_local_state = local(cmd, capture=True).strip()
if wsrep_local_state == '4':
break
else:
time.sleep(2)
print "Waiting for first galera node to create new cluster."
if wsrep_local_state != '4':
raise RuntimeError("Unable able to bring up galera in first node, please verify and continue.")
local("service %s restart" % self.mysql_svc)
local("sudo update-rc.d -f mysql remove")
local("sudo update-rc.d mysql defaults")
def cleanup_redo_log(self):
# Delete the default initially created redo log file
# This is required coz the wsrep config changes the
# size of redo log file
with settings(warn_only = True):
siz = local("ls -l /var/lib/mysql/ib_logfile1 | awk '{print $5}'", capture=True).strip()
if siz == self.mysql_redo_log_sz:
local("rm -rf /var/lib/mysql/ib_logfile*")
def main(args_str = None):
galera = GaleraSetup(args_str)
galera.setup()
if __name__ == "__main__":
main()