105 lines
3.7 KiB
Puppet
105 lines
3.7 KiB
Puppet
# Copyright 2016 Red Hat, Inc.
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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: tripleo::profile::pacemaker::database::redis
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#
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# OpenStack Redis Pacemaker HA profile for tripleo
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#
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# === Parameters
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#
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# [*bootstrap_node*]
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# (Optional) The hostname of the node responsible for bootstrapping tasks
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# Defaults to hiera('redis_short_bootstrap_node_name')
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#
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# [*enable_load_balancer*]
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# (Optional) Whether load balancing is enabled for this cluster
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# Defaults to hiera('enable_load_balancer', true)
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#
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# [*step*]
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# (Optional) The current step in deployment. See tripleo-heat-templates
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# for more details.
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# Defaults to hiera('step')
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#
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# [*redis_file_limit*]
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# (Optional) The file limit to put in /etc/security/limits.d/redis.conf
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# for when redis is managed by pacemaker. Defaults to hiera('redis_file_limit')
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# or 10240 (default in redis systemd limits)
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#
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# [*pcs_tries*]
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# (Optional) The number of times pcs commands should be retried.
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# Defaults to hiera('pcs_tries', 20)
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#
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class tripleo::profile::pacemaker::database::redis (
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$bootstrap_node = hiera('redis_short_bootstrap_node_name'),
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$enable_load_balancer = hiera('enable_load_balancer', true),
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$step = hiera('step'),
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$redis_file_limit = hiera('redis_file_limit', 10240),
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$pcs_tries = hiera('pcs_tries', 20),
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) {
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if $::hostname == downcase($bootstrap_node) {
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$pacemaker_master = true
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} else {
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$pacemaker_master = false
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}
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if $step >= 1 {
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include ::redis
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# Until puppet-redis grows support for /etc/security/limits.conf/redis.conf
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# https://github.com/arioch/puppet-redis/issues/130
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# we best explicitely set the file limit only in the pacemaker profile
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# (the base profile does not need it as it is using systemd which has
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# the limits set there)
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file { '/etc/security/limits.d/redis.conf':
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content => inline_template("redis soft nofile <%= @redis_file_limit %>\nredis hard nofile <%= @redis_file_limit %>\n"),
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owner => '0',
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group => '0',
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mode => '0644',
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}
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if $pacemaker_master and hiera('stack_action') == 'UPDATE' {
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tripleo::pacemaker::resource_restart_flag { 'redis-master':
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# ouch, but trying to stay close how notification works in
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# puppet-redis when pacemaker is not being used
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subscribe => Exec["cp -p ${::redis::config_file_orig} ${::redis::config_file}"]
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}
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}
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}
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if $step >= 2 {
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pacemaker::property { 'redis-role-node-property':
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property => 'redis-role',
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value => true,
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tries => $pcs_tries,
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node => $::hostname,
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}
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if $pacemaker_master {
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pacemaker::resource::ocf { 'redis':
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ocf_agent_name => 'heartbeat:redis',
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master_params => '',
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meta_params => 'notify=true ordered=true interleave=true',
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resource_params => 'wait_last_known_master=true',
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op_params => 'start timeout=200s stop timeout=200s',
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tries => $pcs_tries,
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location_rule => {
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resource_discovery => 'exclusive',
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score => 0,
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expression => ['redis-role eq true'],
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},
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require => [Class['::redis'],
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Pacemaker::Property['redis-role-node-property']],
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}
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}
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}
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}
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