所需要的参数：
$secret_key,
$bind_address = '127.0.0.1',
$cache_server_ip = '127.0.0.1',
$cache_server_port = '11211',
$swift = false,
$quantum = false,
$package_ensure = present,
$horizon_app_links = false,
$keystone_host = '127.0.0.1',
$keystone_port = 5000,
$keystone_scheme = 'http',
$keystone_default_role = 'Member',
$django_debug = false,
$django_verbose = false,
$api_result_limit = 1000,
$http_port = 80,
$https_port = 443,
$use_ssl = false,
$log_level = 'WARNING',
$use_syslog = false,
$logdir = '/var/log/horizon'
$http_service = 'httpd'
$vhosts_file = '/etc/httpd/conf.d/ssl.conf'
$http_modwsgi = 'mod_wsgi'
$package_name = 'openstack-dashboard'
$horizon_additional_packages = ['nodejs', 'nodejs-less', 'python-lesscpy']
$httpd_listen_config_file = '/etc/httpd/conf.d/ports.conf'
$local_settings_path = '/etc/openstack-dashboard/local_settings'
$root_url = '/dashboard'
$apache_user = 'apache'
$apache_group = 'apache'
$apache_confdir = ['/etc/httpd', '/etc/httpd/conf.d']
$ssl_key_group = 'root'
$ssl_cert_file = '/etc/pki/tls/certs/localhost.crt'
$ssl_key_file = '/etc/pki/tls/private/localhost.key'
$ssl_cert_type = 'crt'
$dashboard_http_conf_file = '/etc/httpd/conf.d/openstack-dashboard.conf'
$apache_tuning_file = '/etc/httpd/conf.d/zzz_performance_tuning.conf'
安装流程：
1、安装 apache和mod_wsgi
2、安装 openstack-dashboard（必须在1安装完成后）
3、为dashboard添加用户和用户组apache
4、为/etc/openstack-dashboard/local_settings添加内容和644权限
5、创建/usr/share/openstack-dashboard/目录
6、执行chrown -r apache：apache /usr/share/openstack-dashboard/
7、用户证书判断 case $use_ssl {...} 默认$use_ssl为false，这里采用默认的 package certificate生成$generate_sslcert_name和$inject_certs
8、设置 $ssl_cert_file和 $ssl_key_file 根据上面的默认选项生成的$generate_sslcert_name
9、注入签名证书 默认生成的$inject_certs为FALSE 所以这不会执行
10、生成/var/log/horizon目录，接着生成horizon.log文件，他们所属的用户用户组为apache
11、确认资源间的执行顺序Package["dashboard"] -> File[$horizon::params::logdir]
File["${horizon::params::logdir}/horizon.log"] -> Service['httpd']
12、/etc/httpd/conf.d/ssl.conf文件，内容为模板horizon/vhosts.erb，权限644，修改这个文件后重启httpd服务
13、/etc/httpd/conf.d/openstack-dashboard.conf文件，内容为horizon/openstack-dashboard.conf.erb模板，权限644，修改后重启httpd服务，需要'/etc/httpd', '/etc/httpd/conf.d存在
14、/etc/httpd/conf.d/zzz_performance_tuning.conf文件，内容horizon/zzz_performance_tuning.conf.erb模板，模式644，修改后重启httpd服务，需要'/etc/httpd', '/etc/httpd/conf.d存在
15、/etc/httpd/conf.d/ports.conf文件，为内容horizon/ports.conf.erb，所属用户、用户组均为root，修改后重启httpd服务，需要在httpd安装前执行，需要'/etc/httpd', '/etc/httpd/conf.d存在
16、['/etc/httpd', '/etc/httpd/conf.d']目录，所属用户、用户组均为root
17、安装nodejs', 'nodejs-less', 'python-lesscpy‘
18、/etc/httpd/conf.d/wsgi.conf文件，模式644，所属用户、用户组均为root，内容："LoadModule wsgi_module modules/mod_wsgi.so\n"，需要在apache和mod_wsgi安装后，在dashboard安装前执行
19、在httpd服务启动前，安装mod_ssl
20、文件/etc/sysconfig/httpd 模式644，所属用户、用户组均为root，内容：horizon/redhat_sysconfig_httpd.erb模板，需要安装httpd，修改后重启httpd服务
21、修改"/files/etc/httpd/conf/httpd.conf"，删除Listen指令，需要在httpd服务启动前
22、horizon_compress_styles命令：在/usr/share/openstack-dashboard python manage.py compress
安装 dashboard后执行命令 安装完nodejs', 'nodejs-less', 'python-lesscpy后执行命令
执行完 horizon_compress_styles命令 重启httpd服务
23、确定httpd服务开启
24、文件执行顺序 File[$::horizon::params::local_settings_path, $::horizon::params::logdir] ~> Service['httpd']
Package[$::horizon::params::http_service, $::horizon::params::http_modwsgi] -> Service['httpd']
Package<| title == $::horizon::params::http_service or title == $::horizon::params::http_modwsgi|> ~>
Service<| title == 'httpd'|>
25 如果$cache_server_ip 不是127.0.0.1 就先执行 Class['memcached']