hq_repo = db["tools"]["repo"]
hq_srcfile = "royrusso-elasticsearch-HQ-603ae9e.zip"
hq_filepath = "#{Chef::Config['file_cache_path']}/#{hq_srcfile}"

remote_file "#{hq_filepath}" do
  source "#{hq_repo}#{hq_srcfile}"
  owner 'elasticsearch'
  group 'elasticsearch'
  mode 00644
  not_if { ::File.exists?(hq_filepath) }
end

#######################3

 * remote_file[/var/chef/cache/royrusso-elasticsearch-HQ-603ae9e.zip] action create

    ================================================================================
    Error executing action `create` on resource 'remote_file[/var/chef/cache/royrusso-elasticsearch-HQ-603ae9e.zip]'
    ================================================================================

    NoMethodError
    -------------
    undefined method `host' for "":String

    Resource Declaration:
    ---------------------
    # In /var/chef/cache/cookbooks/neteng/recipes/elasticsearch.rb

    122: remote_file "#{hq_filepath}" do
    123:   source "#{hq_repo}#{hq_srcfile}"
    124:   owner 'elasticsearch'
    125:   group 'elasticsearch'
    126:   mode 00644
    127:   not_if { ::File.exists?(hq_filepath) }
    128: end
    129:

    Compiled Resource:
    ------------------
    # Declared in /var/chef/cache/cookbooks/neteng/recipes/elasticsearch.rb:122:in `from_file'

    remote_file("/var/chef/cache/royrusso-elasticsearch-HQ-603ae9e.zip") do
      provider Chef::Provider::RemoteFile
      action [:create]
      retries 0
      retry_delay 2
      default_guard_interpreter :default
      path "/var/chef/cache/royrusso-elasticsearch-HQ-603ae9e.zip"
      backup 5
      atomic_update true
      source ["http://10.1.24.15/chef/royrusso-elasticsearch-HQ-603ae9e.zip"]
      use_etag true
      use_last_modified true
      declared_type :remote_file
      cookbook_name "neteng"
      recipe_name "elasticsearch"
      owner "elasticsearch"
      group "elasticsearch"
      mode 420
      not_if { #code block }
    end