What is the meaning here list in array calling - arrays

Question

Below I have environment file and recipe can you explain I am not getting what is the list here.
{
"json_class": "Chef::Environment",
"description": "prod environment",
"default_attributes": {
},
"chef_type": "environment",
"override_attributes": {
"user": {
"mapr": {
"id": "application",
"group": "application",
},
"local" : {
"id": "chef",
"group": "chef"
},
"ldap" : {
"id": "ldap",
"sudo": true,
},
}
"name": "prod"
}
Below is the recipe what is the list here i did not get
node['user_create'].each do |list, user|
group user['group'] do
group_name user['group']
gid user['gid']
action [:create]
ignore_failure true
end
user user do
username user['id']
uid user['uid']
group user['gid']
home user['home']
manage_home true
end
if list !='ldap'
How list is passing here in if condition

Answer 1

You are not actually passing in any attributes via the environment, which you can see because the values of default_attributes and override_attributes are both just empty hashes { }. The data you've included there is just ignored by Chef as noise. In the future I recommend you use the Ruby DSL for environment files as it has more error checking for things like this (though not perfect error checking).
As an aside, you've been asking a lot of questions on here and seem to be struggling with Chef. Please consider joining the Chef community Slack team and asking there instead as it's a full chat system and thus the community could offer real-time help rather than here random blurbs.