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README-dnszone.md

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DNSZone Module

Description

The dnszone module allows to configure zones in DNS server.

Features

  • Add, remove, modify, enable or disable DNS zones.

Supported FreeIPA Versions

FreeIPA versions 4.4.0 and up are supported by ipadnszone module.

Requirements

Controller

  • Ansible version: 2.8+

Node

  • Supported FreeIPA version (see above)

Usage

[ipaserver]
ipaserver.test.local

Example playbook to create a simple DNS zone:

---
- name: dnszone present
  hosts: ipaserver
  become: true

  tasks:
  - name: Ensure zone is present.
    ipadnszone:
      ipaadmin_password: SomeADMINpassword
      name: testzone.local
      state: present

Example playbook to create a DNS zone with all currently supported variables:

---
- name: dnszone present
  hosts: ipaserver
  become: true

  tasks:
  - name: Ensure zone is present.
    ipadnszone:
      ipaadmin_password: SomeADMINpassword
      name: testzone.local
      allow_sync_ptr: true
      dynamic_update: true
      dnssec: true
      allow_transfer:
        - 1.1.1.1
        - 2.2.2.2
      allow_query:
        - 1.1.1.1
        - 2.2.2.2
      forwarders:
        - ip_address: 8.8.8.8
        - ip_address: 8.8.4.4
          port: 52
      serial: 1234
      refresh: 3600
      retry: 900
      expire: 1209600
      minimum: 3600
      ttl: 60
      default_ttl: 90
      name_server: ipaserver.test.local.
      admin_email: [email protected]
      nsec3param_rec: "1 7 100 0123456789abcdef"
      skip_overlap_check: true
      skip_nameserver_check: true
      state: present

Example playbook to disable a zone:

---
- name: Playbook to disable DNS zone
  hosts: ipaserver
  become: true

  tasks:
  - name: Disable zone.
    ipadnszone:
      ipaadmin_password: SomeADMINpassword
      name: testzone.local
      state: disabled

Example playbook to enable a zone:

---
- name: Playbook to enable DNS zone
  hosts: ipaserver
  become: true

  tasks:
  - name: Enable zone.
    ipadnszone:
      ipaadmin_password: SomeADMINpassword
      name: testzone.local
      state: enabled

Example playbook to remove a zone:

---
- name: Playbook to remove DNS zone
  hosts: ipaserver
  become: true

  tasks:
  - name: Remove zone.
    ipadnszone:
      ipaadmin_password: SomeADMINpassword
      name: testzone.local
      state: absent

Example playbook to create a zone for reverse DNS lookup, from an IP address:

---
- name: dnszone present
  hosts: ipaserver
  become: true

  tasks:
  - name: Ensure zone for reverse DNS lookup is present.
    ipadnszone:
      ipaadmin_password: SomeADMINpassword
      name_from_ip: 192.168.1.2
      state: present

Note that, on the previous example the zone created with name_from_ip might be "1.168.192.in-addr.arpa.", "168.192.in-addr.arpa.", or "192.in-addr.arpa.", depending on the DNS response the system get while querying for zones, and for this reason, when creating a zone using name_from_ip, the inferred zone name is returned to the controller, in the attribute dnszone.name. Since the zone inferred might not be what a user expects, name_from_ip can only be used with state: present. To have more control over the zone name, the prefix length for the IP address can be provided.

Example playbook to create a zone for reverse DNS lookup, from an IP address, given the prefix length and displaying the resulting zone name:

---
- name: dnszone present
  hosts: ipaserver
  become: true

  tasks:
  - name: Ensure zone for reverse DNS lookup is present.
    ipadnszone:
      ipaadmin_password: SomeADMINpassword
      name_from_ip: 192.168.1.2/24
      state: present
    register: result
  - name: Display inferred zone name.
    debug:
      msg: "Zone name: {{ result.dnszone.name }}"

Variables

ipadnszone

Variable Description Required
ipaadmin_principal The admin principal is a string and defaults to admin no
ipaadmin_password The admin password is a string and is required if there is no admin ticket available on the node no
name | zone_name The zone name string or list of strings. no
name_from_ip Derive zone name from reverse of IP (PTR). Can only be used with state: present. no
forwarders The list of forwarders dicts. Each forwarders dict entry has: no
  ip_address - The IPv4 or IPv6 address of the DNS server. yes
  port - The custom port that should be used on this server. no
forward_policy The global forwarding policy. It can be one of only, first, or none. no
allow_sync_ptr Allow synchronization of forward (A, AAAA) and reverse (PTR) records (bool). no
state The state to ensure. It can be one of present, enabled, disabled or absent, default: present. yes
name_server Authoritative nameserver domain name no
admin_email Administrator e-mail address no
update_policy BIND update policy no
dynamic_update | dynamicupdate Allow dynamic updates no
dnssec Allow inline DNSSEC signing of records in the zone no
allow_transfer List of IP addresses or networks which are allowed to transfer the zone no
allow_query List of IP addresses or networks which are allowed to issue queries no
serial SOA record serial number no
refresh SOA record refresh time no
retry SOA record retry time no
expire SOA record expire time no
minimum How long should negative responses be cached no
ttl Time to live for records at zone apex no
default_ttl Time to live for records without explicit TTL definition no
nsec3param_rec NSEC3PARAM record for zone in format: hash_algorithm flags iterations salt no
skip_overlap_check Force DNS zone creation even if it will overlap with an existing zone no
skip_nameserver_check Force DNS zone creation even if nameserver is not resolvable no

Return Values

ipadnszone

Variable Description Returned When
dnszone DNS Zone dict with zone name infered from name_from_ip.
Options:		 If state is present, name_from_ip is used, and a zone was created.
  name - The name of the zone created, inferred from name_from_ip. Always

Authors

Sergio Oliveira Campos