chef-percona

Chef cookbook for Percona MySQL components

View the Project on GitHub phlipper/chef-percona

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Description

Installs the Percona MySQL client and/or server components. (We are attempting to leverage the official Opscode MySQL cookbook as much as possible.)

Optionally installs:

Requirements

Supported Platforms

We provide an expanding set of tests against the following 64-bit platforms:

Although we don't test against all possible platform verions, we expect the following to be supported. Please submit an issue if this is not the cause, and we'll make reasonable efforts to improve support:

Cookbooks

Chef

We aim to test the most recent releases of Chef 10 and 11. You can view the currently tested versions. (Feel free to submit a pull request if they're out of date!)

Recipes

Usage

This cookbook installs the Percona MySQL components if not present, and pulls updates if they are installed on the system.

Encrypted Passwords

This cookbook requires Encrypted Data Bags. If you forget to use them or do not use a node attribute to overwrite them empty passwords will be used.

To use encrypted passwords, you must create an encrypted data bag. This cookbook assumes a data bag named passwords, but you can override the name using the node[:percona][:encrypted_data_bag] attribute.

This cookbook expects a mysql item and a system item. Please refer to the official documentation on how to get this setup. It actually uses a MySQL example so it can be mostly copied. Ensure you cover the data bag items as described below.

Skip passwords

Set the ["percona"]["skip_passwords"] attribute to skip setting up passwords. Removes the need for the encrypted data bag if using chef-solo. Is useful for setting up development and ci environments where you just want to use the root user with no password. If you are doing this you may want to set [:percona][:server][:debian_username] to be "root" also.

Skip Configure

Set the ['percona']['skip_configure'] attribute to skip having the server recipe include the configure_server recipe directly after install. This is mostly useful in a wrapper cookbook sort of context. Once skipped, you can then perform any pre-config actions your wrapper needs to, such as dropping a custom configuration file or init script or cleaning up incorrectly sized innodb logfiles. You can then include configure_server where necessary.

mysql item

The mysql item should contain entries for root, backup, and replication. If no value is found, the cookbook will fall back to the default non-encrypted password.

system item

The "system" item should contain an entry for the debian system user as specified in the node[:percona][:server][:debian_username] attribute. If no such entry is found, the cookbook will fall back to the default non-encrypted password.

Example: "passwords" data bag - this example assumes that node[:percona][:server][:debian_username] = spud

{
  "mysql" :
  {
    "root" : "trywgFA6R70NO28PNhMpGhEvKBZuxouemnbnAUQsUyo=\n"
    "backup" : "eqoiudfj098389fjadfkadf=\n"
    "replication" : "qwo0fj0213fm9020fm2023fjsld=\n"
  },
  "system" :
  {
    "spud" : "dwoifm2340f024jfadgfu243hf2=\n"
  }
}

Above shows the encrypted password in the data bag. Check out the encrypted_data_bag_secret setting in knife.rb to setup your data bag secret during bootstrapping.

Percona XtraDB Cluster

Below is a minimal example setup to bootstrap a Percona XtraDB Cluster. Please see the official documentation for more information. This is not a perfect example. It is just a sample to get you started.

Wrapper recipe recipes/percona.rb:

# Setup the Percona XtraDB Cluster
cluster_ips = []
unless Chef::Config[:solo]
  search(:node, 'role:percona').each do |other_node|
    next if other_node['private_ipaddress'] == node['private_ipaddress']
    Chef::Log.info "Found Percona XtraDB cluster peer: #{other_node['private_ipaddress']}"
    cluster_ips << other_node['private_ipaddress']
  end
end

cluster_ips.each do |ip|
  firewall_rule "allow Percona group communication to peer #{ip}" do
    source ip
    port 4567
    action :allow
  end

  firewall_rule "allow Percona state transfer to peer #{ip}" do
    source ip
    port 4444
    action :allow
  end

  firewall_rule "allow Percona incremental state transfer to peer #{ip}" do
    source ip
    port 4568
    action :allow
  end
end

cluster_address = "gcomm://#{cluster_ips.join(',')}"
Chef::Log.info "Using Percona XtraDB cluster address of: #{cluster_address}"
node.override["percona"]["cluster"]["wsrep_cluster_address"] = cluster_address
node.override["percona"]["cluster"]["wsrep_node_name"] = node['hostname']

include_recipe 'percona::cluster'
include_recipe 'percona::backup'
include_recipe 'percona::toolkit'

Example percona role roles/percona.rb:

name "percona"
description "Percona XtraDB Cluster"

run_list 'recipe[paydici::percona]'

default_attributes(
  "percona" => {
    "server" => {
      "role" => "cluster"
    },

    "cluster" => {
      "package"                     => "percona-xtradb-cluster-56",
      "wsrep_cluster_name"          => "percona_cluster_1",
      "wsrep_sst_receive_interface" => "eth1" # can be eth0, public, private, etc.
    }
  }
)

Now you need to bring three servers up one at a time with the percona role applied to them. By default the servers will sync up via rsync server state transfer (SST)

Attributes

version = default["percona"]["version"] = "5.6"

# Always restart percona on configuration changes
default["percona"]["auto_restart"] = true

case node["platform_family"]
when "debian"
  default["percona"]["server"]["socket"]                        = "/var/run/mysqld/mysqld.sock"
  default["percona"]["server"]["default_storage_engine"]        = "InnoDB"
  default["percona"]["server"]["includedir"]                    = "/etc/mysql/conf.d/"
  default["percona"]["server"]["pidfile"]                       = "/var/run/mysqld/mysqld.pid"
  default["percona"]["server"]["package"]                       = "percona-server-server-#{version}"
when "rhel"
  default["percona"]["server"]["socket"]                        = "/var/lib/mysql/mysql.sock"
  default["percona"]["server"]["default_storage_engine"]        = "innodb"
  default["percona"]["server"]["includedir"]                    = ""
  default["percona"]["server"]["pidfile"]                       = "/var/lib/mysql/mysqld.pid"
  default["percona"]["server"]["package"]                       = "Percona-Server-server-#{version.tr('.', '')}"
  default["percona"]["server"]["shared_pkg"]                    = "Percona-Server-shared-#{version.tr('.', '')}"
end

# Cookbook Settings
default["percona"]["main_config_file"]                          = "/etc/my.cnf"
default["percona"]["keyserver"]                                 = "keys.gnupg.net"
default["percona"]["encrypted_data_bag"]                        = "passwords"
default["percona"]["use_percona_repos"]                         = true

# Start percona server on boot
default["percona"]["server"]["enable"]                          = true

# Basic Settings
default["percona"]["server"]["role"]                            = "standalone"
default["percona"]["server"]["username"]                        = "mysql"
default["percona"]["server"]["datadir"]                         = "/var/lib/mysql"
default["percona"]["server"]["logdir"]                         = "/var/log/mysql"
default["percona"]["server"]["tmpdir"]                          = "/tmp"
default["percona"]["server"]["debian_username"]                 = "debian-sys-maint"
default["percona"]["server"]["nice"]                            = 0
default["percona"]["server"]["open_files_limit"]                = 16384
default["percona"]["server"]["hostname"]                        = "localhost"
default["percona"]["server"]["basedir"]                         = "/usr"
default["percona"]["server"]["port"]                            = 3306
default["percona"]["server"]["character_set"]                   = "utf8"
default["percona"]["server"]["collation"]                       = "utf8_unicode_ci"
default["percona"]["server"]["language"]                        = "/usr/share/mysql/english"
default["percona"]["server"]["skip_name_resolve"]               = false
default["percona"]["server"]["skip_external_locking"]           = true
default["percona"]["server"]["net_read_timeout"]                = 120
default["percona"]["server"]["connect_timeout"]                 = 10
default["percona"]["server"]["wait_timeout"]                    = 28_800
default["percona"]["server"]["old_passwords"]                   = 0
default["percona"]["server"]["bind_address"]                    = "127.0.0.1"
%w[debian_password root_password].each do |attribute|
  next if defined?(node["percona"]["server"][attribute])
  default["percona"]["server"][attribute]                       = secure_password
end

# Fine Tuning
default["percona"]["server"]["key_buffer"]                      = "16M"
default["percona"]["server"]["max_allowed_packet"]              = "64M"
default["percona"]["server"]["thread_stack"]                    = "192K"
default["percona"]["server"]["query_alloc_block_size"]          = "16K"
default["percona"]["server"]["memlock"]                         = false
default["percona"]["server"]["transaction_isolation"]           = "REPEATABLE-READ"
default["percona"]["server"]["tmp_table_size"]                  = "64M"
default["percona"]["server"]["max_heap_table_size"]             = "64M"
default["percona"]["server"]["sort_buffer_size"]                = "8M"
default["percona"]["server"]["join_buffer_size"]                = "8M"
default["percona"]["server"]["thread_cache_size"]               = 16
default["percona"]["server"]["back_log"]                        = 50
default["percona"]["server"]["max_connections"]                 = 30
default["percona"]["server"]["max_connect_errors"]              = 9999999
default["percona"]["server"]["table_cache"]                     = 8192
default["percona"]["server"]["group_concat_max_len"]            = 4096

# Query Cache Configuration
default["percona"]["server"]["query_cache_size"]                = "64M"
default["percona"]["server"]["query_cache_limit"]               = "2M"

# Logging and Replication
default["percona"]["server"]["sync_binlog"]                     = 1
default["percona"]["server"]["slow_query_log"]                  = 1
default["percona"]["server"]["slow_query_log_file"]             = "/var/log/mysql/mysql-slow.log"
default["percona"]["server"]["long_query_time"]                 = 2
default["percona"]["server"]["server_id"]                       = 1
default["percona"]["server"]["binlog_do_db"]                    = []
default["percona"]["server"]["expire_logs_days"]                = 10
default["percona"]["server"]["max_binlog_size"]                 = "100M"
default["percona"]["server"]["binlog_cache_size"]               = "1M"
default["percona"]["server"]["binlog_format"]                   = "MIXED"
default["percona"]["server"]["log_bin"]                         = "master-bin"
default["percona"]["server"]["relay_log"]                       = "slave-relay-bin"
default["percona"]["server"]["log_slave_updates"]               = false
default["percona"]["server"]["log_warnings"]                    = true
default["percona"]["server"]["log_long_format"]                 = false
default["percona"]["server"]["bulk_insert_buffer_size"]         = "64M"

# MyISAM Specific
default["percona"]["server"]["myisam_recover"]                  = "BACKUP"
default["percona"]["server"]["myisam_sort_buffer_size"]         = "128M"
default["percona"]["server"]["myisam_max_sort_file_size"]       = "10G"
default["percona"]["server"]["myisam_repair_threads"]           = 1

# InnoDB Specific
default["percona"]["server"]["skip_innodb"]                     = false
default["percona"]["server"]["innodb_additional_mem_pool_size"] = "32M"
default["percona"]["server"]["innodb_buffer_pool_size"]         = "128M"
default["percona"]["server"]["innodb_data_file_path"]           = "ibdata1:10M:autoextend"
default["percona"]["server"]["innodb_file_per_table"]           = true
default["percona"]["server"]["innodb_data_home_dir"]            = ""
default["percona"]["server"]["innodb_thread_concurrency"]       = 16
default["percona"]["server"]["innodb_flush_log_at_trx_commit"]  = 1
default["percona"]["server"]["innodb_fast_shutdown"]            = false
default["percona"]["server"]["innodb_log_buffer_size"]          = "64M"
default["percona"]["server"]["innodb_log_file_size"]            = "5M"
default["percona"]["server"]["innodb_log_files_in_group"]       = 2
default["percona"]["server"]["innodb_max_dirty_pages_pct"]      = 80
default["percona"]["server"]["innodb_flush_method"]             = "O_DIRECT"
default["percona"]["server"]["innodb_lock_wait_timeout"]        = 120

# Replication Settings
default["percona"]["server"]["replication"]["read_only"]        = false
default["percona"]["server"]["replication"]["host"]             = ""
default["percona"]["server"]["replication"]["username"]         = ""
default["percona"]["server"]["replication"]["password"]         = ""
default["percona"]["server"]["replication"]["port"]             = 3306

# XtraBackup Settings
default["percona"]["backup"]["configure"]                       = false
default["percona"]["backup"]["username"]                        = "backup"
unless defined?(node["percona"]["backup"]["password"])
  default["percona"]["backup"]["password"]                      = secure_password
end

# XtraDB Cluster Settings
default["percona"]["cluster"]["package"]                        = "percona-xtradb-cluster-55"
default["percona"]["cluster"]["binlog_format"]                  = "ROW"
default["percona"]["cluster"]["wsrep_provider"]                 = "/usr/lib64/libgalera_smm.so"
default["percona"]["cluster"]["wsrep_cluster_address"]          = ""
default["percona"]["cluster"]["wsrep_slave_threads"]            = 2
default["percona"]["cluster"]["wsrep_cluster_name"]             = ""
default["percona"]["cluster"]["wsrep_sst_method"]               = "rsync"
default["percona"]["cluster"]["wsrep_node_name"]                = ""
default["percona"]["cluster"]["wsrep_notify_cmd"]               = ""

# These both are used to build wsrep_sst_receive_address
default["percona"]["cluster"]["wsrep_sst_receive_interface"]    = nil # Works like node["percona"]["server"]["bind_to"]
default["percona"]["cluster"]["wsrep_sst_receive_port"]         = "4444"

default["percona"]["cluster"]["innodb_locks_unsafe_for_binlog"] = 1
default["percona"]["cluster"]["innodb_autoinc_lock_mode"]       = 2

Monitoring.rb

default["percona"]["plugins_version"] = "1.1.3"
default["percona"]["plugins_packages"] = %w[percona-nagios-plugins percona-zabbix-templates percona-cacti-templates]

Explicit my.cnf templating

In some situation it is preferable to explicitly define the attributes needed in a my.cnf file. This is enabled by adding categories to the node[:percona][:conf] attributes. All keys found in the node[:percona][:conf] map will represent categories in the my.cnf file. Each category contains a map of attributes that will be written to the my.cnf file for that category. See the example for more details.

Example:

node["percona"]["conf"]["mysqld"]["slow_query_log_file"] = "/var/lib/mysql/data/mysql-slow.log"

This configuration would write the mysqld category to the my.cnf file and have an attribute slow_query_log_file whose value would be /var/lib/mysql/data/mysql-slow.log.

Example output (my.cnf):

[mysqld]
slow_query_log_file = /var/lib/mysql/data/mysql-slow.log

Dynamically setting the bind address

There's a special attribute node["percona"]["server"]["bind_to"] that allows you to dynamically set the bind address. This attribute accepts the values "public_ip", "private_ip", "loopback", or and interface name like "eth0". Based on this, the recipe will find a corresponding ipv4 address, and override the node["percona"]["server"]["bind_address"] attribute.

Goals

In no particular order:

TODO

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

Contributors

Many thanks go to the following contributors who have helped to make this cookbook even better:

License

chef-percona