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-rw-r--r--manifests/profile/pacemaker/database/mysql.pp184
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+# 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
+#
+# [*step*]
+# (Optional) The current step in deployment. See tripleo-heat-templates
+# for more details.
+# Defaults to hiera('step')
+#
+class tripleo::profile::pacemaker::database::mysql (
+ $step = hiera('step'),
+) {
+
+ if $::hostname == downcase(hiera('bootstrap_nodeid')) {
+ $pacemaker_master = true
+ } else {
+ $pacemaker_master = false
+ }
+ $mysql_bind_host = hiera('mysql_bind_host')
+ $galera_nodes = downcase(hiera('galera_node_names', $::hostname))
+ $galera_nodes_count = count(split($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' => $::hostname,
+ 'max_connections' => hiera('mysql_max_connections'),
+ 'open_files_limit' => '-1',
+ 'wsrep_on' => 'ON',
+ 'wsrep_provider' => '/usr/lib64/galera/libgalera_smm.so',
+ 'wsrep_cluster_name' => 'galera_cluster',
+ 'wsrep_cluster_address' => "gcomm://${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://[${mysql_bind_host}]:4567;",
+ }
+ }
+
+ class { '::tripleo::profile::base::database::mysql':
+ manage_resources => false,
+ remove_default_accounts => $pacemaker_master,
+ mysql_server_options => $mysqld_options,
+ }
+
+ if hiera('step') >= 2 and $pacemaker_master {
+ 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',
+ }
+ }
+ # 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 hiera('step') >= 4 or ( hiera('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 hiera('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.
+ $mysql_root_password = hiera('mysql::server::root_password')
+ exec { 'galera-set-root-password':
+ command => "/bin/touch /root/.my.cnf && /bin/echo \"UPDATE mysql.user SET Password = PASSWORD('${mysql_root_password}') WHERE user = 'root'; flush privileges;\" | /bin/mysql --defaults-extra-file=/root/.my.cnf -u root",
+ }
+ 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'],
+ }
+ if $pacemaker_master {
+ pacemaker::constraint::base { 'galera-then-openstack-core-constraint':
+ constraint_type => 'order',
+ first_resource => 'galera-master',
+ second_resource => 'openstack-core-clone',
+ first_action => 'promote',
+ second_action => 'start',
+ require => [Pacemaker::Resource::Ocf['galera'],
+ Pacemaker::Resource::Ocf['openstack-core']],
+ }
+ }
+ }
+
+}