How to create hash or yml from top level attributes values of node?
- by Sarah Haskins
I have a chef recipe where I want to take all of the attributes under node['cfn']['environment'] and write them to a yml file. I could do something like this (it works fine):
content = {
"environment_class" => node['cfn']['environment']['environment_class'],
"node_id" => node['cfn']['environment']['node_id'],
"reporting_prefix" => node['cfn']['environment']['reporting_prefix'],
"cfn_signal_url" => node['cfn']['environment']['signal_url']
}
yml_string = YAML::dump(content)
file "/etc/configuration/environment/platform.yml" do
mode 0644
action :create
content "#{yml_string}"
end
But I don't like that I have to explicitly list out the names of the attributes. If later I add a new attributes it would be nice if it automatically was included in the written out yml file. So I tried something like this:
yml_string = node['cfn']['environment'].to_yaml
But because the node is actually a Mash, I get a platform.yml file like this (it contains a lot of unexpected nesting that I don't want):
--- !ruby/object:Chef::Node::Attribute
normal:
tags: []
cfn:
environment: &25793640
reporting_prefix: Platform2
signal_url: https://cloudformation-waitcondition-us-east-1.s3.amazonaws.com/...
environment_class: Dev
node_id: i-908adf9
...
But what I want is this:
----
reporting_prefix: Platform2
signal_url: https://cloudformation-waitcondition-us-east-1.s3.amazonaws.com/...
environment_class: Dev
node_id: i-908adf9
How can I achieve the desired yml output w/o explicitly listing the attributes by name?
