# Copyright 2013  OpenStack Foundation
#
# 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.
#
# == Class: redis
# http://packages.ubuntu.com/quantal/amd64/redis-server/filelist

class redis(
  $redis_bind              = '127.0.0.1',
  $redis_max_memory        = '1gb',
  $redis_max_memory_policy = 'allkeys-lru',
  $redis_password          = undef,
  $redis_port              = '6379',
  $version                 = '2.2.12',
) {

  package {'redis-server':
    ensure  => present,
  }

  case $version {
    /2\.2\.\d+/: {
      $redis_conf_file = 'redis.2.2.conf.erb'
    }
    /2\.4\.\d+/: {
      $redis_conf_file = 'redis.2.4.conf.erb'
    }
    /2\.6\.\d+/: {
      $redis_conf_file = 'redis.2.6.conf.erb'
    }
    /2\.8\.\d+/: {
      $redis_conf_file = 'redis.2.8.conf.erb'
    }
    default: {
      fail("Invalid redis version, ${version}")
    }
  }

  file { '/etc/redis/redis.conf':
      ensure  => present,
      owner   => 'root',
      group   => 'root',
      mode    => '0644',
      replace => true,
      content => template("redis/${redis_conf_file}"),
      require => Package['redis-server'],
    }

    service { 'redis-server':
      ensure    => running,
      require   => Package['redis-server'],
      subscribe => File['/etc/redis/redis.conf'],
    }

}