[SOLVED] Gather a List of Configured IP Addresses

Issue

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.

Solution

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

Answered By - ilias-sp