Initial Chef repository

cookbooks/mariadb/recipes/galera.rb

@@ -0,0 +1,141 @@
+#
+# Cookbook Name:: mariadb
+# Recipe:: galera
+#
+# Copyright 2014, blablacar.com
+#
+# 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.
+#
+
+case node['mariadb']['install']['type']
+when 'package'
+  # include MariaDB repositories
+  include_recipe "#{cookbook_name}::repository"
+
+  case node['platform']
+  when 'debian', 'ubuntu'
+    include_recipe "#{cookbook_name}::_debian_galera"
+  when 'redhat', 'centos', 'fedora', 'scientific', 'amazon'
+    include_recipe "#{cookbook_name}::_redhat_galera"
+  end
+when 'from_source'
+  # To be filled as soon as possible
+end
+
+if node['mariadb']['galera']['wsrep_sst_method'] == 'rsync'
+  package 'rsync' do
+    action :install
+  end
+else
+  if node['mariadb']['galera']['wsrep_sst_method'] == 'xtrabackup'
+    package 'percona-xtrabackup' do
+      action :install
+    end
+
+    package 'socat' do
+      action :install
+    end
+  end
+end
+
+include_recipe "#{cookbook_name}::config"
+
+galera_cluster_nodes = []
+if !node['mariadb'].attribute?('rspec') && Chef::Config[:solo]
+  Chef::Log.warn('This recipe uses search. Chef Solo does not support search.')
+else
+  if node['mariadb']['galera']['cluster_search_query'].empty?
+    galera_cluster_nodes = search(
+      :node, \
+      "mariadb_galera_cluster_name:#{node['mariadb']['galera']['cluster_name']}"
+    )
+  else
+    galera_cluster_nodes = search 'node', node['mariadb']['galera']['cluster_search_query']
+    log 'Chef search results' do
+      message "Searching for \"#{node['mariadb']['galera']['cluster_search_query']}\" \
+        resulted in \"#{galera_cluster_nodes}\" ..."
+    end
+  end
+  # Sort Nodes by fqdn
+  galera_cluster_nodes.sort! { |x, y| x[:fqdn] <=> y[:fqdn] }
+end
+
+first = true
+gcomm = 'gcomm://'
+galera_cluster_nodes.each do |lnode|
+  next unless lnode.name != node.name
+  gcomm += ',' unless first
+  gcomm += lnode['fqdn']
+  first = false
+end
+
+galera_options = {}
+
+galera_options['wsrep_cluster_address'] = gcomm
+galera_options['wsrep_cluster_name']    = \
+  node['mariadb']['galera']['cluster_name']
+galera_options['wsrep_sst_method']      = \
+  node['mariadb']['galera']['wsrep_sst_method']
+if node['mariadb']['galera'].attribute?('wsrep_sst_auth')
+  galera_options['wsrep_sst_auth']        = \
+    node['mariadb']['galera']['wsrep_sst_auth']
+end
+galera_options['wsrep_provider']        = \
+  node['mariadb']['galera']['wsrep_provider']
+galera_options['wsrep_slave_threads']   = node['cpu']['total'] * 4
+node['mariadb']['galera']['options'].each do |key, value|
+  galera_options[key] = value
+end
+
+mariadb_configuration 'galera' do
+  section 'mysqld'
+  option galera_options
+  action :add
+end
+
+#
+# Under debian system we have to change the debian-sys-maint default password.
+# This password is the same for the overall cluster.
+#
+if platform?('debian', 'ubuntu')
+  template '/etc/mysql/debian.cnf' do
+    sensitive true
+    source 'debian.cnf.erb'
+    owner 'root'
+    group 'root'
+    mode '0600'
+  end
+
+  execute 'correct-debian-grants' do
+    # Add sensitive true when foodcritic #233 fixed
+    command 'mysql -r -B -N -e "GRANT SELECT, INSERT, UPDATE, DELETE, '\
+      'CREATE, DROP, RELOAD, SHUTDOWN, PROCESS, FILE, REFERENCES, INDEX, '\
+      'ALTER, SHOW DATABASES, SUPER, CREATE TEMPORARY TABLES, '\
+      'LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT, '\
+      'CREATE VIEW, SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, '\
+      "CREATE USER, EVENT, TRIGGER ON *.* TO '" + \
+      node['mariadb']['debian']['user'] + \
+      "'@'" + node['mariadb']['debian']['host'] + "' IDENTIFIED BY '" + \
+      node['mariadb']['debian']['password'] + "' WITH GRANT OPTION\""
+    action :run
+    only_if do
+      cmd = Mixlib::ShellOut.new("/usr/bin/mysql --user=\"" + \
+        node['mariadb']['debian']['user'] + \
+        "\" --password=\"" + node['mariadb']['debian']['password'] + \
+        "\" -r -B -N -e \"SELECT 1\"")
+      cmd.run_command
+      cmd.error?
+    end
+    ignore_failure true
+  end
+end