dns/templates/reverse_zone.j2

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2019-04-16 14:53:34 +00:00
{#
# First create a dict holding the entire zone information and create a hash
# from it, that it can be compared with subsequent task executions. In this
# way the serial will only be updated if there are some content changes.
#}
{% set _zone_data = {} %}
{% set _ = _zone_data.update({'ttl': bind_zone_ttl}) %}
{% set _ = _zone_data.update({'domain': item.0.name}) %}
{% set _ = _zone_data.update({'mname': item.0.name_servers|default([])}) %}
{% set _ = _zone_data.update({'aname': item.0.other_name_servers|default([])}) %}
{% if item.0.hostmaster_email is defined %}
{% set _ = _zone_data.update({'rname': (( item.0.hostmaster_email )) + ('' if (item.0.hostmaster_email is search('\.')) else ('.' + _zone_data['domain']))}) %}
{% else %}
{% set _ = _zone_data.update({'rname': 'hostmaster.' + _zone_data['domain']}) %}
{% endif %}
{% set _ = _zone_data.update({'refresh': bind_zone_time_to_refresh}) %}
{% set _ = _zone_data.update({'retry': bind_zone_time_to_retry}) %}
{% set _ = _zone_data.update({'expire': bind_zone_time_to_expire}) %}
{% set _ = _zone_data.update({'minimum': bind_zone_minimum_ttl}) %}
{% set _ = _zone_data.update({'hosts': item.0.hosts|default([]) | selectattr('ip', 'defined') | selectattr('ip', 'string') | selectattr('ip', 'search', '^'+item.1) | list}) %}
{% set _ = _zone_data.update({'revip': ('.'.join(item.1.replace(item.1+'.','').split('.')[::-1]))}) %}
{#
# Compare the zone file hash with the current zone data hash and set serial
# accordingly
#}
{% set _zone = {'hash': _zone_data | string | hash('md5')} %}
{% for _result in reverse_hashes if _result.network == item.1 %}
{% set _hash_serial = _result.hash.split(' ')[2:] %}
{% if _hash_serial and _hash_serial[0] == _zone['hash'] %}
{% set _ = _zone.update({'serial': _hash_serial[1]}) %}
{% else %}
{% set _ = _zone.update({'serial': timestamp.stdout}) %}
{% endif %}
{% endfor %}
{#
# Eventually output the zone data
#}
; Hash: {{ _zone['hash'] }} {{ _zone['serial'] }}
; Reverse zone file for {{ _zone_data['domain'] }}
{{ ansible_managed | comment(decoration='; ') }}
$TTL {{ _zone_data['ttl'] }}
$ORIGIN {{ ('.'.join(item.1.replace(item.1+'.','').split('.')[::-1])) }}.in-addr.arpa.
{% if _zone_data['mname']|length > 0 %}
@ IN SOA {{ _zone_data['mname']|first }}{% if not _zone_data['mname']|first|regex_search('\.$') %}.{{ _zone_data['domain'] }}.{% endif %} {{ _zone_data['rname'] }}. (
{% else %}
@ IN SOA {{ ansible_hostname }}.{{ _zone_data['domain'] }}. {{ _zone_data['rname'] }}. (
{% endif %}
{{ _zone['serial'] }}
{{ _zone_data['refresh'] }}
{{ _zone_data['retry'] }}
{{ _zone_data['expire'] }}
{{ _zone_data['minimum'] }} )
{% if _zone_data['mname']|length > 0 %}
{% for ns in _zone_data['mname'] %}
IN NS {{ ns }}{% if not ns|regex_search('\.$') %}.{{ _zone_data['domain'] }}.{% endif %}
{% endfor %}
{% else %}
IN NS {{ ansible_hostname }}.{{ _zone_data['domain'] }}.
{% endif %}
{% for ns in _zone_data['aname'] %}
IN NS {{ ns }}.
{% endfor %}
{% if _zone_data['hosts']|length > 0 %}
{% for host in _zone_data['hosts'] %}
{% if host.ip is defined %}
{% if host.ip == item.1 %}
@ IN PTR {{ host.name }}.{{ _zone_data['domain'] }}.
{% else %}
{% if host.ip is string and host.ip.startswith(item.1) %}
{% if host.name == '@' %}
{{ ('.'.join(host.ip.replace(item.1+'.','').split('.')[::-1])).ljust(16) }} IN PTR {{ _zone_data['domain'] }}.
{% else %}
{{ ('.'.join(host.ip.replace(item.1+'.','').split('.')[::-1])).ljust(16) }} IN PTR {{ host.name }}.{{ _zone_data['domain'] }}.
{% endif %}
{% else %}
{% for ip in host.ip %}
{% if ip.startswith(item.1) %}
{{ ('.'.join(ip.replace(item.1+'.','').split('.')[::-1])).ljust(16) }} IN PTR {{ _zone_data['domain'] }}.
{% if host.name == '@' %}
{% else %}
{{ ('.'.join(ip.replace(item.1+'.','').split('.')[::-1])).ljust(16) }} IN PTR {{ host.name }}.{{ _zone_data['domain'] }}.
{% endif %}
{% endif %}
{% endfor %}
{% endif %}
{% endif %}
{% endif %}
{% endfor %}
{% else %}
{{ ('.'.join(ansible_default_ipv4.address.replace(item.1+'.','').split('.')[::-1])).ljust(16) }} IN PTR {{ ansible_hostname }}.{{ _zone_data['domain'] }}.
{% endif %}