我使用的是Puppet 3.2.2和Hiera 1.2.1。 我写了一个puppet模块，init.pp的内容是：
class install( $common_instanceconfig = hiera_hash('common_instanceconfig'), $common_instances = hiera('common_instances') ) { define instances { common { $title: name => $title, path => $common_instanceconfig[$title]['path'], version => $common_instanceconfig[$title]['version'], files => $common_instanceconfig[$title]['files'], pre => $common_instanceconfig[$title]['pre'], after => $common_instanceconfig[$title]['after'], properties => $common_instanceconfig[$title]['properties'], require => $common_instanceconfig[$title]['require'] , } } instances {$common_instances:} } 而hiraradata文件是：
classes: - install common_instances: - common_instance_1 - common_instance_2 common_instanceconfig: common_instance_1 path : '/opt/common_instance_1' version : 1.0 files : software-1.bin pre : pre_install.sh after : after_install.sh properties: "properties" common_instance_2: path : '/opt/common_instance_2' version : 2.0 files : software-2.bin pre : pre_install.sh after : after_install.sh properties: "properties"
当傀儡代理人运行时，我总是收到错误信息
Error: common_instanceconfig String is not an hash or array when accessing it with common_instance_1 at /etc/puppet/modules/install/manifests/init.pp:16 on node puppet.agent1.tmp
看来$common_instances可以被正确的获取，但是$commono_instanceconfig总是被视为一个string。
我使用YAML.load_file来加载hieradata文件，并得到一个正确的哈希对象。
任何人都可以帮忙吗？
即使我面临着与嵌套哈希相同的问题。 我必须编写代码来制作nginx虚拟主机。这是我的YAML文件
vhost_array: - host1 - host2 vhost_hash: host1: hostname: "one" docroot: "england" php_fpm: 2097 db_name: "noidea" db_passwd: "sheeit" host2: hostname: "two" docroot: "nagaland" php_fpm: 3000 db_name: "awesm" db_passwd: "pisss"
这是我的performance
$vhost_array = hiera_array("vhost_array") define hash_extract(){ $vhost_hash = hiera_hash("vhost_hash") $vhost = $vhost_hash[$name] ## TRICK lies in $name variable notice($vhost['hostname']) notice($vhost['docroot']) notice($vhost['php_fpm']) notice($vhost['db_name']) notice($vhost['db_passwd']) } hash_extract{$vhost_array:}
$ name是从数组中获取值的variables，这些值用于访问哈希。您可以在这里find更多有关$ namevariables的信息http://docs.puppetlabs.com/puppet/2.7/reference/lang_defined_types。 HTML
最后我发现这是一个可变范围的问题，正确的init.pp应该是：
class install( $common_instances = hiera_array('common_instances'), $common_instanceconfig = hiera_array('common_instanceconfigs'), ) { define instances ( $common_instanceconfig ) { common { $common_instances[0]: name => $title, path => $common_instanceconfig[0], version => $common_instanceconfig[1], files => $common_instanceconfig[2], pre => $common_instanceconfig[3], after => $common_instanceconfig[4], properties => $common_instanceconfig[5], require => $common_instanceconfig[$title]['require'] , } } instances {$common_instances: common_instanceconfig => $common_instanceconfig } }