381e59f6e1
remove_default_accounts is a mysql::server parameter that, set to True, will execute some MySQL commands to cleanup MySQL defaults accounts created by packaging. In order to successfully run the commands, we need MySQL up and running, which is not the case at step 1 but at step 2. This patch make sure we run the commands at step 2 on pacemaker master only. No change for scenarios without Pacemaker. Change-Id: Ifad3cb40fd958d7ea606b9cd2ba4c8ec22a8e94e Closes-Bug: #1633113
222 lines
8.8 KiB
Puppet
222 lines
8.8 KiB
Puppet
# Copyright 2016 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# == Class: tripleo::profile::pacemaker::database::mysql
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#
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# MySQL with Pacemaker profile for tripleo
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#
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# === Parameters
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#
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# [*bind_address*]
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# (Optional) The address that the local mysql instance should bind to.
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# Defaults to $::hostname
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#
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# [*gmcast_listen_addr*]
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# (Optional) This variable defines the address on which the node listens to
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# connections from other nodes in the cluster.
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# Defaults to hiera('mysql_bind_host')
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#
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# [*step*]
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# (Optional) The current step in deployment. See tripleo-heat-templates
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# for more details.
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# Defaults to hiera('step')
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#
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class tripleo::profile::pacemaker::database::mysql (
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$bind_address = $::hostname,
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$gmcast_listen_addr = hiera('mysql_bind_host'),
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$step = hiera('step'),
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) {
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if $::hostname == downcase(hiera('bootstrap_nodeid')) {
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$pacemaker_master = true
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} else {
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$pacemaker_master = false
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}
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# use only mysql_node_names when we land a patch in t-h-t that
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# switches to autogenerating these values from composable services
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# The galera node names need to match the pacemaker node names... so if we
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# want to use FQDNs for this, the cluster will not finish bootstrapping,
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# since all the nodes will be marked as slaves. For now, we'll stick to the
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# short name which is already registered in pacemaker until we get around
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# this issue.
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$galera_node_names_lookup = hiera('mysql_short_node_names', hiera('mysql_node_names', $::hostname))
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if is_array($galera_node_names_lookup) {
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$galera_nodes = downcase(join($galera_node_names_lookup, ','))
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} else {
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$galera_nodes = downcase($galera_node_names_lookup)
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}
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$galera_nodes_count = count(split($galera_nodes, ','))
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$mysqld_options = {
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'mysqld' => {
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'skip-name-resolve' => '1',
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'binlog_format' => 'ROW',
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'default-storage-engine' => 'innodb',
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'innodb_autoinc_lock_mode' => '2',
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'innodb_locks_unsafe_for_binlog'=> '1',
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'query_cache_size' => '0',
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'query_cache_type' => '0',
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'bind-address' => $bind_address,
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'max_connections' => hiera('mysql_max_connections'),
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'open_files_limit' => '-1',
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'wsrep_on' => 'ON',
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'wsrep_provider' => '/usr/lib64/galera/libgalera_smm.so',
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'wsrep_cluster_name' => 'galera_cluster',
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'wsrep_cluster_address' => "gcomm://${galera_nodes}",
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'wsrep_slave_threads' => '1',
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'wsrep_certify_nonPK' => '1',
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'wsrep_max_ws_rows' => '131072',
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'wsrep_max_ws_size' => '1073741824',
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'wsrep_debug' => '0',
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'wsrep_convert_LOCK_to_trx' => '0',
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'wsrep_retry_autocommit' => '1',
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'wsrep_auto_increment_control' => '1',
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'wsrep_drupal_282555_workaround'=> '0',
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'wsrep_causal_reads' => '0',
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'wsrep_sst_method' => 'rsync',
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'wsrep_provider_options' => "gmcast.listen_addr=tcp://${gmcast_listen_addr}:4567;",
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}
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}
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# remove_default_accounts parameter will execute some mysql commands
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# to remove the default accounts created by MySQL package.
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# We need MySQL running to run the commands successfully, so better to
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# wait step 2 before trying to run the commands.
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if $step >= 2 and $pacemaker_master {
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$remove_default_accounts = true
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} else {
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$remove_default_accounts = false
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}
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class { '::tripleo::profile::base::database::mysql':
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manage_resources => false,
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remove_default_accounts => $remove_default_accounts,
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mysql_server_options => $mysqld_options,
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}
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if $step >= 1 and $pacemaker_master and hiera('stack_action') == 'UPDATE' {
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tripleo::pacemaker::resource_restart_flag { 'galera-master':
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subscribe => File['mysql-config-file'],
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}
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}
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if $step >= 2 {
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if $pacemaker_master {
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pacemaker::resource::ocf { 'galera' :
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ocf_agent_name => 'heartbeat:galera',
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op_params => 'promote timeout=300s on-fail=block',
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master_params => '',
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meta_params => "master-max=${galera_nodes_count} ordered=true",
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resource_params => "additional_parameters='--open-files-limit=16384' enable_creation=true wsrep_cluster_address='gcomm://${galera_nodes}'",
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require => Class['::mysql::server'],
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before => Exec['galera-ready'],
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}
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exec { 'galera-ready' :
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command => '/usr/bin/clustercheck >/dev/null',
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timeout => 30,
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tries => 180,
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try_sleep => 10,
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environment => ['AVAILABLE_WHEN_READONLY=0'],
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require => Exec['create-root-sysconfig-clustercheck'],
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}
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# We add a clustercheck db user and we will switch /etc/sysconfig/clustercheck
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# to it in a later step. We do this only on one node as it will replicate on
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# the other members. We also make sure that the permissions are the minimum necessary
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mysql_user { 'clustercheck@localhost':
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ensure => 'present',
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password_hash => mysql_password(hiera('mysql_clustercheck_password')),
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require => Exec['galera-ready'],
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}
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mysql_grant { 'clustercheck@localhost/*.*':
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ensure => 'present',
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options => ['GRANT'],
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privileges => ['PROCESS'],
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table => '*.*',
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user => 'clustercheck@localhost',
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}
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# We create databases for services at step 2 as well. This ensures
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# Galara is up before those get created
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Exec['galera-ready'] -> Mysql_database<||>
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}
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# This step is to create a sysconfig clustercheck file with the root user and empty password
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# on the first install only (because later on the clustercheck db user will be used)
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# We are using exec and not file in order to not have duplicate definition errors in puppet
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# when we later set the the file to contain the clustercheck data
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exec { 'create-root-sysconfig-clustercheck':
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command => "/bin/echo 'MYSQL_USERNAME=root\nMYSQL_PASSWORD=\'\'\nMYSQL_HOST=localhost\n' > /etc/sysconfig/clustercheck",
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unless => '/bin/test -e /etc/sysconfig/clustercheck && grep -q clustercheck /etc/sysconfig/clustercheck',
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}
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xinetd::service { 'galera-monitor' :
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port => '9200',
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server => '/usr/bin/clustercheck',
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per_source => 'UNLIMITED',
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log_on_success => '',
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log_on_failure => 'HOST',
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flags => 'REUSE',
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service_type => 'UNLISTED',
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user => 'root',
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group => 'root',
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require => Exec['create-root-sysconfig-clustercheck'],
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}
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}
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if $step >= 4 or ( $step >= 3 and $pacemaker_master ) {
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# At this stage we are guaranteed that the clustercheck db user exists
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# so we switch the resource agent to use it.
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$mysql_clustercheck_password = hiera('mysql_clustercheck_password')
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file { '/etc/sysconfig/clustercheck' :
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ensure => file,
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mode => '0600',
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owner => 'root',
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group => 'root',
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content => "MYSQL_USERNAME=clustercheck\n
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MYSQL_PASSWORD='${mysql_clustercheck_password}'\n
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MYSQL_HOST=localhost\n",
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}
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}
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if $step >= 5 {
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# We now make sure that the root db password is set to a random one
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# At first installation /root/.my.cnf will be empty and we connect without a root
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# password. On second runs or updates /root/.my.cnf will already be populated
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# with proper credentials. This step happens on every node because this sql
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# statement does not automatically replicate across nodes.
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$mysql_root_password = hiera('mysql::server::root_password')
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$galera_set_pwd = "/bin/touch /root/.my.cnf && \
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/bin/echo \"UPDATE mysql.user SET Password = PASSWORD('${mysql_root_password}') WHERE user = 'root'; \
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flush privileges;\" | \
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/bin/mysql --defaults-extra-file=/root/.my.cnf -u root"
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exec { 'galera-set-root-password':
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command => $galera_set_pwd,
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}
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file { '/root/.my.cnf' :
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ensure => file,
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mode => '0600',
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owner => 'root',
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group => 'root',
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content => "[client]
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user=root
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password=\"${mysql_root_password}\"
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[mysql]
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user=root
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password=\"${mysql_root_password}\"",
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require => Exec['galera-set-root-password'],
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}
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}
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}
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