{%- macro keepalived_config(data, recurse=-1) -%}
  {%- set recurse = recurse + 1 -%}
  {%- if data is none -%}
    {{- '\n' -}}
  {%- elif data is string or data is number -%}
    {{- data }}{{ '\n' -}}
  {%- elif data is mapping -%}
    {%- if recurse > 0 -%}
      {{- '{\n' -}}
    {%- endif -%}
    {%- for key, value in data.iteritems() -%}
      {{- key }} {{ keepalived_config(value, recurse) -}}
    {%- endfor -%}
    {%- if recurse > 0 -%}
        {{- '}\n' -}}
    {%- endif -%}
  {%- else -%}
    {{- '{\n' -}}
    {%- for value in data -%}
      {{- keepalived_config(value) -}}
    {%- endfor -%}
    {{- '}\n' -}}
  {%- endif -%}
{%- endmacro -%}