multi instance / multi flavor MySQL management
multi instance / multi flavor MySQL management:
- MySQL Community
- XtraDB Cluster (percona's Galera)
backup strategies:
- mysqldump: grants + 1 file per DB
- xtrabackup: can be configured to make incrementals and a weekly or montly full backup
- installs percona repo (if needed)
- installs MySQL/XtraDB cluster packages
- manages configuration files (/etc/mysql) - it's not possible to have a unmanaged MySQL instance
This module requires pluginsync enabled for puppet < 4
mysql::community::instance { 'test':
port => '3306',
password => 'password',
add_default_mycnf => true,
}
mysql::community::instance { 'test2':
port => '3307',
password => 'password',
add_default_mycnf => true,
}
mysql::xtradbcluster::instance { 'cluster1':
cluster_name => 'galera',
port => '3306',
bootstrap => true,
password => 'password',
serverid => '1',
default_instance => true,
cluster_list => [ '192.168.56.103:4568' ],
sst_username => 'sstuser',
sst_password => 'sstpassw0rd',
node_address => '192.168.56.103',
gmcast_listen_addr => 'tcp://0.0.0.0:4567'
}
->
mysql::xtradbcluster::instance { 'cluster2':
cluster_name => 'galera',
port => '3307',
bootstrap => false,
password => 'password',
serverid => '2',
default_instance => false,
cluster_list => [ '192.168.56.103:4567' ],
sst_username => 'sstuser',
sst_password => 'sstpassw0rd',
node_address => '192.168.56.103',
gmcast_listen_addr => 'tcp://0.0.0.0:4568'
}
Note: As per xtradbcluster requirement, once a cluster is bootstraped we need to change bootstrap variable to false in the primary node
install backup script using xtrabackup tool for cluster1 instance:
mysql::backup::xtrabackup { 'cluster1':
destination => '/backup',
}
install backup script for galera instance using hiera:
xtrabackup:
'galera':
hour: '3'
minute: '0'
destination: '/var/mysql/backup'
idhost: 'EXAMPLE001'
mailto: '[email protected]'
retention: '5'
run SQL query
mysql_sql { 'caca':
command => 'select version()',
instance_name => 'test',
}
create database
mysql::database { 'provaprova': }
percona repo installation
- srcdir: = '/usr/local/src',
- package_ensure: = 'installed',
percona toolkit installation
- package_ensure: = 'installed',
ibdata inspector
- binpath: place to install innochecksum tool (default: /usr/local/bin/innochecksum)
- general options:
- destination: Where to store backups - required
- retention: Instance to backup (default: undef)
- logdir: Where to store logs, if not specified any log message is shown via stdout (default: undef)
- mailto: If defined, sends backups notifications via email (default: undef)
- idhost: Optional host identification, if not defined uses hostname (default: undef)
- backupscript: backup script path (default: /usr/local/bin/backup_xtrabackup)
- backupid: How to identify the kind of backup (default: MySQL)
- xtrabackup_version: xtrabackup version to install (default: 2.4.4)
- full backup related variables:
- fullbackup_monthday: day of month to perform full backups, space padded (default: undef) - INCOMPATIBLE with fullbackup_weekday
- fullbackup_weekday: day of week (1..7) to perform full backups; 1 is Monday (default: undef) - INCOMPATIBLE with fullbackup_monthday
- cronjob related variables:
- setcron: - setcron: If setcron is true, at which hour to run backup job (default: 2)
- hour: If setcron is true, at which hour to run backup job (default: 2)
- minute: If setcron is true, at which minute to run backup job (default: 0)
- month: If setcron is true, at which month to run backup job (default: undef)
- monthday: If setcron is true, at which monthday to run backup job (default: undef)
- weekday: If setcron is true, at which weekday to run backup job (default: undef)
- general options:
- destination: Where to store backups - required
- instance: Instance to backup (default: undef)
- retention: Backup retention (default: undef)
- logdir: Where to store logs, if not specified any log message is shown via stdout (default: undef)
- compress: Compress backups (default: true)
- mailto: If defined, sends backups notifications via email (default: undef)
- idhost: Optional host identification, if not defined uses hostname (default: undef)
- backupscript: Where to store backup script (default: /usr/local/bin/backupmysqldump)
- masterdata: Use this option to dump a master replication server to produce a dump file that can be used to set up another server as a slave of the master. If the option value is 2, the CHANGE MASTER TO statement is written as an SQL comment, and thus is informative only; it has no effect when the dump file is reloaded. If the option value is 1, the statement is not written as a comment and takes effect when the dump file is reloaded (default: 1)
- file_per_db: Create several dumps, one per DB. It is convenient to perform partial restores but be aware it is not useful for creating slaves (default: true)
- exclude_dbs: List of DBs to exclude from the backup. The information_schema, performance_schema, mysql and sys are implicitly skipped (default: empty array)
- debug: Whether to enable detailed log output (default: false)
- cronjob related variables:
- setcron: If set to true, managed a cronjob to schedule backups (default: true)
- hour: If setcron is true, at which hour to run backup job (default: 2)
- minute: If setcron is true, at which minute to run backup job (default: 0)
- month: If setcron is true, at which month to run backup job (default: undef)
- monthday: If setcron is true, at which monthday to run backup job (default: undef)
- weekday: If setcron is true, at which weekday to run backup job (default: undef)
- extraopts: Additionl options for mysqldump (default: undef)
- instance_name: = $name,
- client_name: = $name,
- default: = false,
- password: = undef,
- socket: = undef,
- instance_name: = $name,
- skip_external_locking: = $mysql::params::skip_external_locking_default,
- tmpdir: = $mysql::params::tmpdir_default,
- port: = '3306',
- pidfile: = undef,
- datadir: = "/var/mysql/${name}",
- relaylogdir: = "/var/mysql/${name}/relaylogs",
- binlogdir: = "/var/mysql/${name}/binlogs",
- default_storage_engine: = 'InnoDB',
- ignoreclientcharset: = true,
- charset: = 'utf8',
- readonly: = false,
- key_buffer_size: = $mysql::params::key_buffer_size_default,
- sysdate_is_now: = true,
- max_allowed_packet: = '16M',
- max_connect_errors: = '1000000',
- nameresolve: = false,
- innodb: = 'FORCE',
- expirelogsdays: = '5',
- binlog_format: = 'MIXED',
- sync_binlog: = true,
- serverid: = '1',
- max_binlog_size: = '1073741824',
- log_bin_trust_function_creators: = false,
- slave: = false,
- max_relay_log_size: = '0',
- replicate_ignore_db: = [],
- max_heap_table_size: = '32M',
- tmp_table_size: = '32M',
- query_cache_type: = '0',
- query_cache_size: = '0',
- query_cache_limit: = '1048576',
- max_connections: = '500',
- max_user_connections: = '0',
- thread_cache_size: = '50',
- open_files_limit: = '65535',
- table_definition_cache: = '4096',
- table_open_cache: = '100',
- sort_buffer_size: = '262144',
- join_buffer_size: = '131072',
- innodb_flush_method: = 'O_DIRECT',
- innodb_log_files_in_group: = '2',
- innodb_log_file_size: = '50331648',
- innodb_flush_log_at_trx_commit: = '2',
- innodb_file_per_table: = true,
- innodb_buffer_pool_size: = ceiling(sprintf('%f', $::memorysize_mb)*838860),
- innodb_autoinc_lock_mode: = undef,
- log_queries_not_using_indexes: = false,
- slow_query_log: = true,
- log_error: = "/var/log/mysql/${name}/mysql-error.log",
- slow_query_log_file: = "/var/log/mysql/${name}/mysql-slow.log",
- wsrep_node_address: = $::ipaddress,
- wsrep_cluster_address: = [],
- instance_name: = $name,
- wsrep_provider: = '/usr/lib/libgalera_smm.so',
- wsrep_sst_method: = 'xtrabackup-v2',
- wsrep_cluster_name: = 'my_wsrep_cluster',
- wsrep_sst_auth_username: = 'dmlzY2EK',
- wsrep_sst_auth_password: = 'Y2F0YWx1bnlhCg',
- wsrep_dirty_reads: = false,
- wsrep_desync: = false,
- wsrep_reject_queries: = 'NONE',
- wsrep_sst_donor: = undef,
- srep_sst_donor_rejects_queries: = false,
- gmcast_listen_addr: = 'tcp://0.0.0.0:4567',
Tested on:
- Ubuntu 16.04
- Ubuntu 14.04
- CentOS 6
- CentOS 7
We are pushing to have acceptance testing in place, so any new feature should have some test to check both presence and absence of any feature
- On Ubuntu fails to install because packages are starting the service before being configured. Should be installed using RUNLEVEL=1 (puppet package provider does not support environment variables) or to use a similar approach
- Fork it
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Added some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create new Pull Request