Lightweight composition layer for Puppet TripleO
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# Copyright 2017 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::mysql_bundle
#
# Containerized Mysql Pacemaker HA profile for tripleo
#
# === Parameters
#
# [*mysql_docker_image*]
# (Optional) The docker image to use for creating the pacemaker bundle
# Defaults to hiera('tripleo::profile::pacemaker::database::mysql_bundle::mysql_docker_image', undef)
#
# [*control_port*]
# (Optional) The bundle's pacemaker_remote control port on the host
# Defaults to hiera('tripleo::profile::pacemaker::database::mysql_bundle::control_port', '3123')
#
# [*bootstrap_node*]
# (Optional) The hostname of the node responsible for bootstrapping tasks
# Defaults to hiera('mysql_short_bootstrap_node_name')
#
# [*bind_address*]
# (Optional) The address that the local mysql instance should bind to.
# Defaults to $::hostname
#
# [*ca_file*]
# (Optional) The path to the CA file that will be used for the TLS
# configuration. It's only used if internal TLS is enabled.
# Defaults to undef
#
# [*certificate_specs*]
# (Optional) The specifications to give to certmonger for the certificate
# it will create. Note that the certificate nickname must be 'mysql' in
# the case of this service.
# Example with hiera:
# tripleo::profile::base::database::mysql::certificate_specs:
# hostname: <overcloud controller fqdn>
# service_certificate: <service certificate path>
# service_key: <service key path>
# principal: "mysql/<overcloud controller fqdn>"
# Defaults to hiera('tripleo::profile::base::database::mysql::certificate_specs', {}).
#
# [*enable_internal_tls*]
# (Optional) Whether TLS in the internal network is enabled or not.
# Defaults to hiera('enable_internal_tls', false)
#
# [*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')
#
# [*innodb_flush_log_at_trx_commit*]
# (Optional) Disk flush behavior for MySQL under Galera. A value of
# '1' indicates flush to disk per transaction. A value of '2' indicates
# flush to disk every second, flushing all unflushed transactions in
# one step.
# Defaults to hiera('innodb_flush_log_at_trx_commit', '1')
#
# [*clustercheck_user*]
# (Optional) The name of the clustercheck user.
# Defaults to 'clustercheck'
#
# [*clustercheck_password*]
# (Optional) The password for the clustercheck user.
# Defaults to hiera('mysql_clustercheck_password')
#
# [*cipher_list*]
# (Optional) When enable_internal_tls is true, defines the list of allowed
# ciphers for the mysql server and Galera (including SST).
# Defaults to '!SSLv2:kEECDH:kRSA:kEDH:kPSK:+3DES:!aNULL:!eNULL:!MD5:!EXP:!RC4:!SEED:!IDEA:!DES:!SSLv3:!TLSv1'
#
# [*gcomm_cipher*]
# (Optional) When enable_internal_tls is true, defines the cipher
# used by Galera for the gcomm replication traffic.
# Defaults to 'AES128-SHA256'
#
# [*sst_tls_cipher*]
# (Optional) When enable_internal_tls is true, defines the list of
# ciphers that the socat may use to tunnel SST connections. Deprecated,
# now socat is configured based on option cipher_list.
# Defaults to undef
#
# [*sst_tls_options*]
# (Optional) When enable_internal_tls is true, defines additional
# parameters to be passed to socat for tunneling SST connections.
# Defaults to undef
#
# [*ipv6*]
# (Optional) Whether to deploy MySQL on IPv6 network.
# Defaults to str2bool(hiera('mysql_ipv6', false))
#
# [*mysql_server_options*]
# (Optional) Extras options to deploy MySQL. Useful when deploying Galera cluster.
# Should be an hash.
# Defaults to hiera('tripleo::profile::base::database::mysql::mysql_server_options', {}
#
# [*pcs_tries*]
# (Optional) The number of times pcs commands should be retried.
# Defaults to hiera('pcs_tries', 20)
#
# [*step*]
# (Optional) The current step in deployment. See tripleo-heat-templates
# for more details.
# Defaults to hiera('step')
#
# [*tls_priorities*]
# (optional) Sets PCMK_tls_priorities in /etc/sysconfig/pacemaker when set
# Defaults to hiera('tripleo::pacemaker::tls_priorities', undef)
#
# [*open_files_limit*]
# (Optional) Maximum value for open-files-limit
# Defaults to 16384
#
class tripleo::profile::pacemaker::database::mysql_bundle (
$mysql_docker_image = hiera('tripleo::profile::pacemaker::database::mysql_bundle::mysql_docker_image', undef),
$control_port = hiera('tripleo::profile::pacemaker::database::mysql_bundle::control_port', '3123'),
$bootstrap_node = hiera('mysql_short_bootstrap_node_name'),
$bind_address = $::hostname,
$ca_file = undef,
$cipher_list = '!SSLv2:kEECDH:kRSA:kEDH:kPSK:+3DES:!aNULL:!eNULL:!MD5:!EXP:!RC4:!SEED:!IDEA:!DES:!SSLv3:!TLSv1',
$gcomm_cipher = 'AES128-SHA256',
$certificate_specs = hiera('tripleo::profile::base::database::mysql::certificate_specs', {}),
$enable_internal_tls = hiera('enable_internal_tls', false),
$gmcast_listen_addr = hiera('mysql_bind_host'),
$innodb_flush_log_at_trx_commit = hiera('innodb_flush_log_at_trx_commit', '1'),
$clustercheck_user = 'clustercheck',
$clustercheck_password = hiera('mysql_clustercheck_password'),
$sst_tls_cipher = undef,
$sst_tls_options = undef,
$ipv6 = str2bool(hiera('mysql_ipv6', false)),
$mysql_server_options = hiera('tripleo::profile::base::database::mysql::mysql_server_options', {}),
$tls_priorities = hiera('tripleo::pacemaker::tls_priorities', undef),
$pcs_tries = hiera('pcs_tries', 20),
$step = Integer(hiera('step')),
$open_files_limit = 16384,
) {
if $::hostname == downcase($bootstrap_node) {
$pacemaker_master = true
} else {
$pacemaker_master = false
}
# FQDN are lowercase in /etc/hosts, so are pacemaker node names
$galera_node_names_lookup = downcase(hiera('mysql_short_node_names', $::hostname))
$galera_fqdns_names_lookup = downcase(hiera('mysql_node_names', $::hostname))
if is_array($galera_node_names_lookup) {
$galera_nodes = join($galera_fqdns_names_lookup, ',')
} else {
$galera_nodes = $galera_node_names_lookup
}
$galera_nodes_array = split($galera_nodes, ',')
$galera_nodes_count = count($galera_nodes_array)
# construct a galera-pacemaker name mapping for the resource agent
# [galera-0:galera-0.internalapi.local, ...]
$host_map_array_tmp = zip($galera_node_names_lookup, $galera_fqdns_names_lookup)
$host_map_array = $host_map_array_tmp.map |$i| {
"${i[0]}:${i[1]}"
}
$cluster_host_map_string = join($host_map_array, ';')
if $enable_internal_tls {
$tls_certfile = $certificate_specs['service_certificate']
$tls_keyfile = $certificate_specs['service_key']
$sst_tls = {
'tcert' => $tls_certfile,
'tkey' => $tls_keyfile,
}
if $ca_file {
$tls_ca_options = "socket.ssl_ca=${ca_file}"
$sst_tca = { 'tca' => $ca_file }
} else {
$tls_ca_options = ''
$sst_tca = {}
}
$tls_options = "socket.ssl_key=${tls_keyfile};socket.ssl_cert=${tls_certfile};socket.ssl_cipher=${gcomm_cipher};${tls_ca_options};"
$wsrep_sst_method = 'rsync_tunnel'
if $ipv6 {
$sst_ipv6 = 'pf=ip6'
} else {
$sst_ipv6 = undef
}
if defined(sst_tls_cipher) {
warning('The sst_tls_cipher parameter is deprecated, use cipher_list')
$sst_cipher = $sst_tls_cipher
} else {
$sst_cipher = $cipher_list
}
$all_sst_options = ["cipher=${sst_cipher}", $sst_tls_options, $sst_ipv6]
$sst_sockopt = {
'sockopt' => join(delete_undef_values($all_sst_options), ',')
}
$mysqld_options_sst = { 'sst' => merge($sst_tls, $sst_tca, $sst_sockopt) }
} else {
$tls_options = ''
$wsrep_sst_method = 'rsync'
$mysqld_options_sst = {}
}
$mysqld_options_mysqld = {
'mysqld' => {
'pid-file' => '/var/lib/mysql/mariadb.pid',
'skip-name-resolve' => '1',
'binlog_format' => 'ROW',
'default-storage-engine' => 'innodb',
'innodb_autoinc_lock_mode' => '2',
'innodb_locks_unsafe_for_binlog' => '1',
'innodb_file_per_table' => 'ON',
'innodb_flush_log_at_trx_commit' => $innodb_flush_log_at_trx_commit,
'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_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' => $wsrep_sst_method,
'wsrep_provider_options' => "gmcast.listen_addr=tcp://${gmcast_listen_addr}:4567;${tls_options}",
},
'mysqld_safe' => {
'pid-file' => '/var/lib/mysql/mariadb.pid',
}
}
$mysqld_options = deep_merge($mysqld_options_mysqld, $mysqld_options_sst, $mysql_server_options)
# remove_default_accounts parameter will execute some mysql commands
# to remove the default accounts created by MySQL package.
# We need MySQL running to run the commands successfully, so better to
# wait step 2 before trying to run the commands.
if $step >= 2 and $pacemaker_master {
$remove_default_accounts = true
} else {
$remove_default_accounts = false
}
if $step >= 1 and $pacemaker_master and hiera('stack_action') == 'UPDATE' {
tripleo::pacemaker::resource_restart_flag { 'galera-master':
subscribe => File['mysql-config-file'],
}
}
$mysql_root_password = hiera('mysql::server::root_password')
if $step >= 1 {
# Kolla sets the root password, expose it to the MySQL package
# so that it can initialize the database (e.g. create users)
file { '/root/.my.cnf' :
ensure => file,
mode => '0600',
owner => 'root',
group => 'root',
content => "[client]
user=root
password=\"${mysql_root_password}\"
[mysql]
user=root
password=\"${mysql_root_password}\"",
}
# Resource agent uses those credentials to poll galera state
file { '/etc/sysconfig/clustercheck' :
ensure => file,
mode => '0600',
owner => 'root',
group => 'root',
content => "MYSQL_USERNAME=${clustercheck_user}\n
MYSQL_PASSWORD='${clustercheck_password}'\n
MYSQL_HOST=localhost\n",
}
}
if $step >= 2 {
# need that class to create all openstack credentials
# we don't include it in step 1 because the kolla bootstrap
# happens after step 1 baremetal
class { '::tripleo::profile::base::database::mysql':
bootstrap_node => $bootstrap_node,
manage_resources => false,
remove_default_accounts => $remove_default_accounts,
mysql_server_options => $mysqld_options,
cipher_list => $cipher_list
}
if $pacemaker_master {
$mysql_short_node_names = hiera('mysql_short_node_names')
$mysql_short_node_names.each |String $node_name| {
# lint:ignore:puppet-lint-2.0.1 does not work with multiline strings
# and blocks (remove this when we move to 2.2.0 where this works)
pacemaker::property { "galera-role-${node_name}":
property => 'galera-role',
value => true,
tries => $pcs_tries,
node => downcase($node_name),
before => Pacemaker::Resource::Bundle['galera-bundle'],
}
# lint:endignore
}
$storage_maps = {
'mysql-cfg-files' => {
'source-dir' => '/var/lib/kolla/config_files/mysql.json',
'target-dir' => '/var/lib/kolla/config_files/config.json',
'options' => 'ro',
},
'mysql-cfg-data' => {
'source-dir' => '/var/lib/config-data/puppet-generated/mysql/',
'target-dir' => '/var/lib/kolla/config_files/src',
'options' => 'ro',
},
'mysql-hosts' => {
'source-dir' => '/etc/hosts',
'target-dir' => '/etc/hosts',
'options' => 'ro',
},
'mysql-localtime' => {
'source-dir' => '/etc/localtime',
'target-dir' => '/etc/localtime',
'options' => 'ro',
},
'mysql-lib' => {
'source-dir' => '/var/lib/mysql',
'target-dir' => '/var/lib/mysql',
'options' => 'rw',
},
# NOTE: we cannot remove this bind mount until the resource-agent
# can use the configured log-file for initial bootstrap operations
'mysql-log-mariadb' => {
'source-dir' => '/var/log/mariadb',
'target-dir' => '/var/log/mariadb',
'options' => 'rw',
},
'mysql-log' => {
'source-dir' => '/var/log/containers/mysql',
'target-dir' => '/var/log/mysql',
'options' => 'rw',
},
'mysql-dev-log' => {
'source-dir' => '/dev/log',
'target-dir' => '/dev/log',
'options' => 'rw',
},
}
if $enable_internal_tls {
$mysql_storage_maps_tls = {
'mysql-pki-gcomm-key' => {
'source-dir' => '/etc/pki/tls/private/mysql.key',
'target-dir' => '/var/lib/kolla/config_files/src-tls/etc/pki/tls/private/mysql.key',
'options' => 'ro',
},
'mysql-pki-gcomm-cert' => {
'source-dir' => '/etc/pki/tls/certs/mysql.crt',
'target-dir' => '/var/lib/kolla/config_files/src-tls/etc/pki/tls/certs/mysql.crt',
'options' => 'ro',
},
}
if $ca_file {
$ca_storage_maps_tls = {
'mysql-pki-gcomm-ca' => {
'source-dir' => $ca_file,
'target-dir' => "/var/lib/kolla/config_files/src-tls${ca_file}",
'options' => 'ro',
},
}
} else {
$ca_storage_maps_tls = {}
}
$storage_maps_tls = merge($mysql_storage_maps_tls, $ca_storage_maps_tls)
} else {
$storage_maps_tls = {}
}
if $tls_priorities != undef {
$tls_priorities_real = " -e PCMK_tls_priorities=${tls_priorities}"
} else {
$tls_priorities_real = ''
}
pacemaker::resource::bundle { 'galera-bundle':
image => $mysql_docker_image,
replicas => $galera_nodes_count,
masters => $galera_nodes_count,
location_rule => {
resource_discovery => 'exclusive',
score => 0,
expression => ['galera-role eq true'],
},
container_options => 'network=host',
options => "--user=root --log-driver=journald -e KOLLA_CONFIG_STRATEGY=COPY_ALWAYS${tls_priorities_real}",
run_command => '/bin/bash /usr/local/bin/kolla_start',
network => "control-port=${control_port}",
storage_maps => merge($storage_maps, $storage_maps_tls),
}
pacemaker::resource::ocf { 'galera':
ocf_agent_name => 'heartbeat:galera',
master_params => '',
meta_params => "master-max=${galera_nodes_count} ordered=true container-attribute-target=host",
op_params => 'promote timeout=300s on-fail=block',
resource_params => "log='/var/log/mysql/mysqld.log' additional_parameters='--open-files-limit=${open_files_limit}' enable_creation=true wsrep_cluster_address='gcomm://${galera_nodes}' cluster_host_map='${cluster_host_map_string}'",
tries => $pcs_tries,
location_rule => {
resource_discovery => 'exclusive',
score => 0,
expression => ['galera-role eq true'],
},
bundle => 'galera-bundle',
require => [Class['::mysql::server'],
Pacemaker::Resource::Bundle['galera-bundle']],
before => Exec['galera-ready'],
}
exec { 'galera-ready' :
command => '/usr/bin/clustercheck >/dev/null',
timeout => 30,
tries => 180,
try_sleep => 10,
environment => ['AVAILABLE_WHEN_READONLY=0'],
tag => 'galera_ready'
}
File['/etc/sysconfig/clustercheck'] -> Exec['galera-ready']
# If the root password is to be updated:
# . hiera contains the new password
# . .my.cnf still contains the current root credentials
# so changing the root password can only happen before
# .my.cnf is re-generated by puppet
mysql_user { 'root@localhost':
ensure => present,
password_hash => mysql_password($mysql_root_password),
}
Mysql_user['root@localhost'] -> File['/root/.my.cnf']
# make sure to update all root users in the mysql DB
mysql_user { 'root@%':
ensure => present,
password_hash => mysql_password($mysql_root_password),
}
# We create databases and users for services at step 2 as well. This ensures
# Galera is up and ready before those get created
File['/root/.my.cnf'] -> Mysql_database<||>
File['/root/.my.cnf'] -> Mysql_user<|title!='root@localhost'|>
Exec['galera-ready'] -> Mysql_database<||>
Exec['galera-ready'] -> Mysql_user<||>
}
}
}