1b2725b551
Nova is able to talk to a read-only database for some tables so it improves the scalability of MySQL server and reduce the access to the server in charge of writes. More documentation: https://wiki.openstack.org/wiki/Slave_usage Change-Id: I1d44332acb381b11d90b63535d274f535be26d55
72 lines
2.3 KiB
ObjectPascal
72 lines
2.3 KiB
ObjectPascal
#
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# Copyright (C) 2014 eNovance SAS <licensing@enovance.com>
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#
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# Author: Emilien Macchi <emilien.macchi@enovance.com>
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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: nova::db
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# Configures the nova database.
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#
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# == Parameters
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#
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# [*database_connection*]
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# (optional) Connection url to connect to nova database.
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# Defaults to undef
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#
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# [*slave_connection*]
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# (optional) Connection url to connect to nova slave database (read-only).
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# Defaults to undef
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#
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# [*database_idle_timeout*]
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# (optional) Timeout before idle db connections are reaped.
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# Defaults to undef
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#
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class nova::db (
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$database_connection = undef,
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$slave_connection = undef,
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$database_idle_timeout = undef,
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) {
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$database_connection_real = pick($database_connection, $::nova::database_connection, false)
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$slave_connection_real = pick($slave_connection, $::nova::slave_connection, false)
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$database_idle_timeout_real = pick($database_idle_timeout, $::nova::database_idle_timeout, false)
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if $database_connection_real {
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if($database_connection_real =~ /mysql:\/\/\S+:\S+@\S+\/\S+/) {
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require 'mysql::bindings'
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require 'mysql::bindings::python'
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} elsif($database_connection_real =~ /postgresql:\/\/\S+:\S+@\S+\/\S+/) {
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} elsif($database_connection_real =~ /sqlite:\/\//) {
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} else {
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fail("Invalid db connection ${database_connection_real}")
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}
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nova_config {
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'database/connection': value => $database_connection_real, secret => true;
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'database/idle_timeout': value => $database_idle_timeout_real;
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}
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if $slave_connection_real {
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nova_config {
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'database/slave_connection': value => $slave_connection_real, secret => true;
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}
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} else {
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nova_config {
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'database/slave_connection': ensure => absent;
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}
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}
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}
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}
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