按Chef区域中的AWS区域搜索节点

Question

我目前做的事情就像nodes = search(:node, "chef_environment:#{node.chef_environment} AND recipes:recipe_name)以获得具有相同厨师环境和食谱名称的所有节点。但是，我有几个单区域集群，使用相同的厨师环境和食谱名称，我想知道是否有一种方法可以添加到搜索查询，如region键，只能获取位于同一AWS区域的节点。

Answer 1

Unfortunately and bizarrely the answer is no. The semi official solution from Amazon is to take the AZ name and trim off the last letter but that doesn't help with search. You could make your own custom Ohai plugin to do that though. No one seems to be sure why Amazon doesn't offer the plain region name via the metadata service.

EDIT: A more specific example

search(:node, "ec2_placement_availability_zone:#{node['ec2']['placement']['availability_zone'][0..-2]}*")