puppet nftables

# manage a named set

define nftables::set(

  Enum['present','absent']

    $ensure = 'present',

  Pattern[/^[-a-zA-Z0-9_]+$/]

    $setname = $title,

  Pattern[/^\d\d$/]

    $order = '10',

  Optional[Enum['ipv4_addr', 'ipv6_addr', 'ether_addr', 'inet_proto', 'inet_service', 'mark']]

    $type = undef,

  String

    $table = 'inet-filter',

  Array[Enum['constant', 'dynamic', 'interval', 'timeout'], 0, 4]

    $flags = [],

  Optional[Integer]

    $timeout = undef,

  Optional[Integer]

    $gc_interval = undef,

  Optional[Array[String]]

    $elements = undef,

  Optional[Integer]

    $size = undef,

  Optional[Enum['performance', 'memory']]

    $policy = undef,

  Boolean

    $auto_merge = false,

  Optional[String]

    $content = undef,

  Optional[Variant[String,Array[String,1]]]

    $source = undef,

){

  if $size and $elements {

    if length($elements) > $size {

      fail("Max size of set ${setname} of ${size} is not being respected")

    }

  }

  if $ensure == 'present' {

    concat::fragment{

      "nftables-${table}-set-${setname}":

        order  => $order,

        target => "nftables-${table}",

    }

    if $content {

      Concat::Fragment["nftables-${table}-set-${setname}"]{

        content => "  ${content}",

      }

    } elsif $source {

      Concat::Fragment["nftables-${table}-set-${setname}"]{

        source => $source,

      }

    } else {

      if $type == undef {

        fail('The way the resource is configured must have a type set')

      }

      Concat::Fragment["nftables-${table}-set-${setname}"]{

        content => epp('nftables/set.epp',

          {

            'name'        => $setname,

            'type'        => $type,

            'flags'       => $flags,

            'timeout'     => $timeout,

            'gc_interval' => $gc_interval,

            'elements'    => $elements,

            'size'        => $size,

            'policy'      => $policy,

            'auto_merge'  => $auto_merge,

          }

        )

      }

    }

  }

}