dig2hosts.yml

#
# (c) Copyright 2018 Jeff Kight
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
#
# Author: Jeff Kight <jeff@kight.net>
#
---

- hosts: localhost
  gather_facts: no
  connection: local

  tasks:

    - name: get dig axfr via delegate
      shell: dig axfr {{ domain }} | grep -v -e '^;' | grep -v -e '^_' | grep -v -e '^$' | sed -e 's/\t/ /g' -e 's/  / /g'
      register: dig_axfr_delegate_result
      delegate_to: "{{ delegate }}"
      when: delegate is defined

    - name: set_fact when delegate
      set_fact:
        dig_axfr_result: "{{ dig_axfr_delegate_result }}"
      when: delegate is defined

    - name: get dig axfr locally
      shell: dig axfr {{ domain }} | grep -v -e '^;' | grep -v -e '^_' | grep -v -e '^$' | sed -e 's/\t/ /g' -e 's/  / /g'
      register: dig_axfr_local_result
      when: delegate is not defined

    - name: set_fact when local
      set_fact:
        dig_axfr_result: "{{ dig_axfr_local_result }}"
      when: delegate is not defined

    - name: check details
      debug:
        var: dig_axfr_result
        verbosity: 1

    - name: create dictionary from dig axfr
      set_fact:
        dig_axfr: >
          {{ dig_axfr|default([]) + [ { 'hostname': item.split(' ')[0]|default(), 'type':  item.split(' ')[3]|default(),  'value':  item.split(' ')[4]|default() } ] }}
      loop: "{{ dig_axfr_result.stdout_lines|flatten(levels=1) }}"
      loop_control:
        label: "{{ item.split(' ')[0] }}"

    - name: check details
      debug:
        var: dig_axfr
        verbosity: 1

    - name: filter dictionary on type A
      set_fact:
        dig_axfr_A: "{{ dig_axfr_A|default([]) + [ item ] }}"
      loop: "{{ dig_axfr|json_query('[?type==`A`]') }}"
      loop_control:
        label: "{{ item.hostname }}"

    - name: check details
      debug:
        var: dig_axfr_A
        verbosity: 1

    - name: create host entries
      set_fact:
        host_entries: "{{ host_entries|default([]) }} + [ '{{ item.value }}\t{{ item.hostname|regex_replace('\\..*', '') }} {{ item.hostname|regex_replace('.hqplan.lab\\.', '.hqplan.lab') }}' ]"
      loop: "{{ dig_axfr_A|flatten(levels=1) }}"
      loop_control:
        label: "{{ item.hostname }}"

    - name: check details
      debug:
        msg: "{{ host_entries }}"
        verbosity: 1

    - name: manage hosts
      blockinfile:
        path: /etc/hosts
        block: "{{ host_entries|join('\n') }}"
        marker: "# {mark} ANSIBLE MANAGED BLOCK FOR {{ domain|upper }}"
      become: yes