`puppet-glance`模块

先睹为快
动手练习 - 光看不练假把式

0. 项目简介

不想看下面大段的代码解析，已经跃跃欲试了？

OK，我们开始吧！

创建puppet_glance.pp文件并输入:

$ puppet apply -v puppet_glance.pp

class glance用于管理Glance软件包和Openstackclient软件包:

  include ::glance::params
  if ( $glance::params::api_package_name == $glance::params::registry_package_name ) {
    package { $::glance::params::api_package_name :
      ensure => $package_ensure,
      name   => $::glance::params::api_package_name,
      tag    => ['openstack', 'glance-package'],
    }
    include '::openstacklib::openstackclient'
  }

glance::api类用于管理以下配置：

policy\db\logging\cache

在Glance-api中,启用Glance的缓存功能可以加速镜像的二次下载速度(注：在使用Ceph作为Glance, Cinder, Nova的后端时，此功能无效)

  glance_cache_config {
    'DEFAULT/image_cache_stall_time': value => $image_cache_stall_time;
    'DEFAULT/image_cache_max_size':   value => $image_cache_max_size;
    'glance_store/os_region_name':    value => $os_region_name;
  }

5.验证glance-api服务部署是否成功
通过调用glance image-list命令来验证glance-api的返回值是否符合预期。

  if $validate {
    $defaults = {
      'glance-api' => {
        'command'  => "glance --os-auth-url ${auth_uri} --os-tenant-name ${keystone_tenant} --os-username ${keystone_user} --os-password ${keystone_password} image-list",
      }
    }
    $validation_options_hash = merge ($defaults, $validation_options)
    create_resources('openstacklib::service_validation', $validation_options_hash, {'subscribe' => 'Service[glance-api]'})
  }

glance::registry用于安装和配置glance-registry服务，其代码结构与glance::api类似，在此不做赘述。

在glance-api和glance-registry中启用notifications功能可以在创建镜像，更新镜像源数据等事件发生时发送通知到rabbitmq给其他服务使用。


    rabbit_userid               => $rabbit_userid,
    rabbit_host                 => $rabbit_host,
    rabbit_port                 => $rabbit_port,
    rabbit_hosts                => $rabbit_hosts,
    rabbit_virtual_host         => $rabbit_virtual_host,
    rabbit_ha_queues            => $rabbit_ha_queues,
    heartbeat_timeout_threshold => $rabbit_heartbeat_timeout_threshold,
    heartbeat_rate              => $rabbit_heartbeat_rate,
    rabbit_use_ssl              => $rabbit_use_ssl,
    kombu_ssl_ca_certs          => $kombu_ssl_ca_certs,
    kombu_ssl_certfile          => $kombu_ssl_certfile,
    kombu_ssl_keyfile           => $kombu_ssl_keyfile,
    kombu_ssl_version           => $kombu_ssl_version,
    kombu_reconnect_delay       => $kombu_reconnect_delay,
    amqp_durable_queues         => $amqp_durable_queues,
    kombu_compression           => $kombu_compression,
  }
  oslo::messaging::notifications { ['glance_api_config', 'glance_registry_config']:
    driver => $notification_driver,
    topics => $rabbit_notification_topic,
  }

Glance支持多种存储后端，比如cinder,swift,file,ceph,s3，本节将介绍如何使用配置Ceph作为Glance后端存储：

配置Glance使用Swift作为存储后端

puppet-glance

puppet-glance模块

0. 项目简介

`puppet-glance`模块