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
|
# Copyright 2016 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
# == Class: tripleo::profile::pacemaker::database::mysql
#
# MySQL with Pacemaker profile for tripleo
#
# === Parameters
#
# [*bind_address*]
# (Optional) The address that the local mysql instance should bind to.
# Defaults to $::hostname
#
# [*gmcast_listen_addr*]
# (Optional) This variable defines the address on which the node listens to
# connections from other nodes in the cluster.
# Defaults to hiera('mysql_bind_host')
#
# [*step*]
# (Optional) The current step in deployment. See tripleo-heat-templates
# for more details.
# Defaults to hiera('step')
#
class tripleo::profile::pacemaker::database::mysql (
$bind_address = $::hostname,
$gmcast_listen_addr = hiera('mysql_bind_host'),
$step = hiera('step'),
) {
if $::hostname == downcase(hiera('bootstrap_nodeid')) {
$pacemaker_master = true
} else {
$pacemaker_master = false
}
# use only mysql_node_names when we land a patch in t-h-t that
# switches to autogenerating these values from composable services
$galera_node_names_lookup = hiera('mysql_node_names', hiera('galera_node_names', $::hostname))
if is_array($galera_node_names_lookup) {
$galera_nodes = downcase(join($galera_node_names_lookup, ','))
} else {
$galera_nodes = downcase($galera_node_names_lookup)
}
$galera_nodes_count = count(split($galera_nodes, ','))
$mysqld_options = {
'mysqld' => {
'skip-name-resolve' => '1',
'binlog_format' => 'ROW',
'default-storage-engine' => 'innodb',
'innodb_autoinc_lock_mode' => '2',
'innodb_locks_unsafe_for_binlog'=> '1',
'query_cache_size' => '0',
'query_cache_type' => '0',
'bind-address' => $bind_address,
'max_connections' => hiera('mysql_max_connections'),
'open_files_limit' => '-1',
'wsrep_on' => 'ON',
'wsrep_provider' => '/usr/lib64/galera/libgalera_smm.so',
'wsrep_cluster_name' => 'galera_cluster',
'wsrep_cluster_address' => "gcomm://${galera_nodes}",
'wsrep_slave_threads' => '1',
'wsrep_certify_nonPK' => '1',
'wsrep_max_ws_rows' => '131072',
'wsrep_max_ws_size' => '1073741824',
'wsrep_debug' => '0',
'wsrep_convert_LOCK_to_trx' => '0',
'wsrep_retry_autocommit' => '1',
'wsrep_auto_increment_control' => '1',
'wsrep_drupal_282555_workaround'=> '0',
'wsrep_causal_reads' => '0',
'wsrep_sst_method' => 'rsync',
'wsrep_provider_options' => "gmcast.listen_addr=tcp://${gmcast_listen_addr}:4567;",
}
}
class { '::tripleo::profile::base::database::mysql':
manage_resources => false,
remove_default_accounts => $pacemaker_master,
mysql_server_options => $mysqld_options,
}
if $step >= 1 and $pacemaker_master and hiera('stack_action') == 'UPDATE' {
tripleo::pacemaker::resource_restart_flag { 'galera-master':
subscribe => File['mysql-config-file'],
}
}
if $step >= 2 {
if $pacemaker_master {
pacemaker::resource::ocf { 'galera' :
ocf_agent_name => 'heartbeat:galera',
op_params => 'promote timeout=300s on-fail=block',
master_params => '',
meta_params => "master-max=${galera_nodes_count} ordered=true",
resource_params => "additional_parameters='--open-files-limit=16384' enable_creation=true wsrep_cluster_address='gcomm://${galera_nodes}'",
require => Class['::mysql::server'],
before => Exec['galera-ready'],
}
exec { 'galera-ready' :
command => '/usr/bin/clustercheck >/dev/null',
timeout => 30,
tries => 180,
try_sleep => 10,
environment => ['AVAILABLE_WHEN_READONLY=0'],
require => Exec['create-root-sysconfig-clustercheck'],
}
# We add a clustercheck db user and we will switch /etc/sysconfig/clustercheck
# to it in a later step. We do this only on one node as it will replicate on
# the other members. We also make sure that the permissions are the minimum necessary
mysql_user { 'clustercheck@localhost':
ensure => 'present',
password_hash => mysql_password(hiera('mysql_clustercheck_password')),
require => Exec['galera-ready'],
}
mysql_grant { 'clustercheck@localhost/*.*':
ensure => 'present',
options => ['GRANT'],
privileges => ['PROCESS'],
table => '*.*',
user => 'clustercheck@localhost',
}
# We create databases for services at step 2 as well. This ensures
# Galara is up before those get created
Exec['galera-ready'] -> Mysql_database<||>
}
# This step is to create a sysconfig clustercheck file with the root user and empty password
# on the first install only (because later on the clustercheck db user will be used)
# We are using exec and not file in order to not have duplicate definition errors in puppet
# when we later set the the file to contain the clustercheck data
exec { 'create-root-sysconfig-clustercheck':
command => "/bin/echo 'MYSQL_USERNAME=root\nMYSQL_PASSWORD=\'\'\nMYSQL_HOST=localhost\n' > /etc/sysconfig/clustercheck",
unless => '/bin/test -e /etc/sysconfig/clustercheck && grep -q clustercheck /etc/sysconfig/clustercheck',
}
xinetd::service { 'galera-monitor' :
port => '9200',
server => '/usr/bin/clustercheck',
per_source => 'UNLIMITED',
log_on_success => '',
log_on_failure => 'HOST',
flags => 'REUSE',
service_type => 'UNLISTED',
user => 'root',
group => 'root',
require => Exec['create-root-sysconfig-clustercheck'],
}
}
if $step >= 4 or ( $step >= 3 and $pacemaker_master ) {
# At this stage we are guaranteed that the clustercheck db user exists
# so we switch the resource agent to use it.
$mysql_clustercheck_password = hiera('mysql_clustercheck_password')
file { '/etc/sysconfig/clustercheck' :
ensure => file,
mode => '0600',
owner => 'root',
group => 'root',
content => "MYSQL_USERNAME=clustercheck\n
MYSQL_PASSWORD='${mysql_clustercheck_password}'\n
MYSQL_HOST=localhost\n",
}
}
if $step >= 5 {
# We now make sure that the root db password is set to a random one
# At first installation /root/.my.cnf will be empty and we connect without a root
# password. On second runs or updates /root/.my.cnf will already be populated
# with proper credentials. This step happens on every node because this sql
# statement does not automatically replicate across nodes.
$mysql_root_password = hiera('mysql::server::root_password')
$galera_set_pwd = "/bin/touch /root/.my.cnf && \
/bin/echo \"UPDATE mysql.user SET Password = PASSWORD('${mysql_root_password}') WHERE user = 'root'; \
flush privileges;\" | \
/bin/mysql --defaults-extra-file=/root/.my.cnf -u root"
exec { 'galera-set-root-password':
command => $galera_set_pwd,
}
file { '/root/.my.cnf' :
ensure => file,
mode => '0600',
owner => 'root',
group => 'root',
content => "[client]
user=root
password=\"${mysql_root_password}\"
[mysql]
user=root
password=\"${mysql_root_password}\"",
require => Exec['galera-set-root-password'],
}
}
}
|
