get-loopback-primary.yml

- name: Get primary lo0 address
  hosts: all
  connection: local
  gather_facts: no
  roles:
    - Juniper.junos
    - cmprescott.xml
  vars:
    temp_dir: /tmp
    USER: jeffl
    PASSWORD: pass123

  tasks:
    - name: create temporary filename
      shell:  mktemp "{{ temp_dir }}"/`date +"%Y%m%d%d%m"`"_{{ inventory_hostname }}".XXXXX.xml
      register: temp_file

    - name: Execute get_config RPC
      junos_rpc:
        host={{ inventory_hostname }}
        user={{ USER }}
        port=22
        passwd={{ PASSWORD }}
        rpc=get_config
        logfile=logs/{{ inventory_hostname }}_cli.log
        dest="{{ temp_file.stdout }}"
        format=xml
        filter_xml="<configuration><interfaces><interface><name>lo0</name></interface></interfaces></configuration>"

    - name: Parse XML
      xml:
        file={{ temp_file.stdout }}
        xpath=//unit[name='0']/family/inet/address/primary/preceding-sibling::name
        content=text
      register: loopback_address_match
      failed_when: loopback_address_match['matches'] is not defined

    - name: Set fact
      set_fact:
        loopback: "{{ loopback_address_match['matches'][0]['name'] }}"

    - name: Print fact
      debug:
        var: loopback