{%- if env.NGX_RESOLVERS %}
  {%- if env.NGX_RESOLVER_STACK == 'any' %}
resolver {{ env.NGX_RESOLVERS }} status_zone={{ resolver_status_zone }};
  {%- elif env.NGX_RESOLVER_STACK == 'ipv4' %}
resolver {{ env.NGX_RESOLVERS }} status_zone={{ resolver_status_zone }} ipv4=on ipv6=off;
  {%- elif env.NGX_RESOLVER_STACK == 'ipv6' %}
resolver {{ env.NGX_RESOLVERS }} status_zone={{ resolver_status_zone }} ipv4=off ipv6=on;
  {%- endif %}
{%- endif %}

{%- if env.NGX_RESOLVER_TIMEOUT %}
resolver_timeout {{ env.NGX_RESOLVER_TIMEOUT }};
{%- endif %}