Gather a List of Configured IP Addresses - ansible

Question

I want to pull out the lines of a Juniper config that assign an IPv6 address to an interface and save that output to a file.
The output I am after is generated with the command 'show configuration | display set| match "inet6 address" '
I'm building an Ansible playbook and have pinballed off of errors to end up with the below task. It is basically giving me the complete interface configs, and I just want to narrow it down to the lines that would fit the "match" line in the manual command. The commented out filters aren't working and I can't find documentation that explains filters in a way that I understand.
- name: "Get selected configuration hierarchies"
juniper_junos_config:
host: "{{ ansible_host }}"
retrieve: "committed"
config_mode : "private"
filter: "<configuration><interfaces/></configuration>"
#filter: "<configuration><interfaces/><family/><inet6/><address/></configuration>"
#filter: "inet6/address"
format: "set"
options:
inherit: "inherit"
dest: "{{ inventory_hostname }}-inet6-config"
register: response
- name: "Print result"
debug:
var: response
Output:
ok: [LAB-QFX5110-1] => {
"response": {
"changed": false,
"config": "\nset interfaces xe-0/0/0 apply-groups-except jumbo-frames\nset interfaces xe-0/0/0 description \"Test Laptop - DMZ;000\"\nset interfaces xe-0/0/0 gigether-options 802.3ad ae12\n<SNIP>\nset interfaces lo0 unit 10 family inet address 100.126.0.x/32\nset interfaces lo0 unit 10 family inet6 address ABCD:EF00:0000:01c4::1/128\n<SNIP>/n",
"config_lines": [
"",
"set interfaces xe-0/0/0 apply-groups-except jumbo-frames",
"set interfaces xe-0/0/0 description \"Test Laptop - DMZ;000\"",
"set interfaces xe-0/0/0 gigether-options 802.3ad ae12",
"<SNIP>",
"set interfaces lo0 unit 10 family inet address 100.126.0.x/32",
"set interfaces lo0 unit 10 family inet6 address ABCD:EF00:0000:01c4::1/128",
"<SNIP>",
],
"failed": false,
"msg": "Configuration has been: opened, retrieved, closed."
}
}
I just want the lines that read:
set interfaces unit X family inet6 address XXXX:YYYY:ZZZZ:1234::1/127
But I can't seem to plug in the correct filter.
I will also mention that if there is a better way to gather this, I am open to exploring it. It just seems like this is the task Ansible was created to perform.

Answer 1

here is how to do it. since your response dictionary contains the output split by lines, we will use the config_lines key, process line by line:
code:
---
- hosts: localhost
gather_facts: false
vars:
response:
changed: false
config: |2-
set interfaces xe-0/0/0 apply-groups-except jumbo-frames
set interfaces xe-0/0/0 description "Test Laptop - DMZ;000"
set interfaces xe-0/0/0 gigether-options 802.3ad ae12
<SNIP>
set interfaces lo0 unit 10 family inet address 100.126.0.x/32
set interfaces lo0 unit 10 family inet6 address ABCD:EF00:0000:01c4::1/128
<SNIP>/n
config_lines:
- ''
- set interfaces xe-0/0/0 apply-groups-except jumbo-frames
- set interfaces xe-0/0/0 description "Test Laptop - DMZ;000"
- set interfaces xe-0/0/0 gigether-options 802.3ad ae12
- "<SNIP>"
- set interfaces lo0 unit 10 family inet address 100.126.0.x/32
- set interfaces lo0 unit 10 family inet6 address ABCD:EF00:0000:01c4::1/128
- "<SNIP>"
failed: false
msg: 'Configuration has been: opened, retrieved, closed.'
tasks:
- name: find entries containing inet6 address, add to results
set_fact:
interfaces: "{{ interfaces | default([]) + [item] }}"
when: item is search('inet6 address')
with_items:
- "{{ response.config_lines }}"
- debug:
var: interfaces
- name: save results to file
template:
src: results.j2
dest: /tmp/results.out
you will need a jinja2 template for the last task to work (under same dir as your playbook), with contents:
results.j2:
# processing results:
{% for interface in interfaces -%}
{{ interface }}
{%- endfor %}
1st task parses each line and if the when condition is met, its adding the given line to a results , the interfaces list. 2nd task prints that variable. 3rd task saves the results to a file under /tmp/.
hope it helps