Chef each loop for each loop

chef-infra, erb, ruby

Solution

How I would tackle the problem:

In `attributes/default.rb`:

default['services']['service1']['port'] = 11001
default['services']['service2']['port'] = 11002
default['services']['service3']['port'] = 11003

OR (alternative syntax):

default['services'] = {
 "service1" => { "port" => 11001 },
 "service2" => { "port" => 11002 },
 "service3" => { "port" => 11003 }
}

In the `recipes/default.rb`:

node['services'].each do |serv,properties|
  template "/etc/services/conf.d/service-#{serv}.conf" do
    source "service-#{serv}.conf.erb"
    owner 'serviceaccount'
    group 'serviceaccount'
    mode '0644'
    variables(
      :service => serv,
      :ports => properties['port']
    )
  end
end

When iterating over a hash (what node attributes are based on) you can use the `|key,values|` syntax of ruby to get the key in the first variable and the value (which could be another hash) in the second variable.

Problem

I have these arrays ``` services=["service1","service2","service3"] ports=[11001,11002,11003] ``` For each element of services I need to assign the correspondent element of ports in an conf.erb file. What I have until now is: ``` node['recipe']['services'].each do |serv| template "/etc/services/conf.d/service-#{serv}.conf" do source "service-#{serv}.conf.erb" owner 'serviceaccount' group 'serviceaccount' mode '0644' variables( :service => serv, :ports => node['services']['ports'] ) end end ``` It sounds bad and the result is bad. The result should be 3 conf files: service-service1.conf: service-service1 port 11001 service-service2.conf: service-service2 port 11002 service-service3.conf: service-service3 port 11003 Any help is appreciated. Thank you, Gabriel

Original source