Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Failed to parse template docker/etc/sysconfig/docker.erb:
  Filepath: /etc/puppet/environments/production/modules/docker/templates/etc/sysconfig/docker.erb
  Line: 9
  Detail: undefined method `each' for nil:NilClass
 at /etc/puppet/environments/production/modules/docker/manifests/config.pp:7 on node puppet.***.local
Warning: Not using cache on failed catalog
Error: Could not retrieve catalog; skipping run


===Line 7:===

class docker::config {
  file { '/etc/sysconfig/docker':
    ensure  => present,
    force   => true,
    content => template("${module_name}/etc/sysconfig/docker.erb"),
  }

===erb template: =====


# /etc/sysconfig/docker
# This file is managed by Puppet and local changes may be overwritten

# Modify these options if you want to change the way the docker daemon runs
OPTIONS='<% -%>
<% if @selinux_enabled %> --selinux-enabled=<%= @selinux_enabled -%><% end -%>
<% if @bind_to %> -H <%= @bind_to -%><% end -%>
<% if @log_level %> -l <%= @log_level -%><% end -%>
<% if @dns %><% @dns_array.each do |address| %> --dns <%= address -%><% end %><% end -%> #!!! here is line 9!!!
<% if @dns_search %><% @dns_search.each do |domain| %> --dns-search <%= domain -%><% end %><% end -%>
<% if @extra_parameters %><% @extra_parameters_array.each do |param| %> <%= param -%><% end %><% end -%>