Ansible Filter with_items list - ansible

Question

I am using Ansible 2.10.7 and I need to filter a specific item in the with_items list.
Before using with_items msg looks like this:
"ansible_facts": {
"cvp_info": {
"version": "2020.2.3"
},
"devices": [
{
"architecture": "",
"bootupTimeStamp": 1615810038.137913,
"bootupTimestamp": 1615810038.137913,
"complianceCode": "",
Playbook:
---
- name: Playbook to demonstrate cv_container module.
hosts: cvp_servers
connection: local
gather_facts: no
collections:
- arista.cvp
vars:
vars_files:
- vars.yml
tasks:
- name: "collecting facts from CVP {{inventory_hostname}}"
arista.cvp.cv_facts:
facts:
devices
- name: "Print out facts from CVP"
debug:
msg: "{{item.name}}"
with_items: "{{devices}}"
After using the with_items: "{{devices}}", I see it is filtering the big list and then I get this output which I want to filter:
ok: [hq] => (item={'hostname': 'rd-sw055', 'danzEnabled': False, 'mlagEnabled': False, 'streamingStatus': 'active', 'status': 'Registered','bootupTimeStamp': 1605618537.210405, 'internalBuildId': '8c8dfbf2-a4d1-420a-9c9c-59f6aa67a14e', 'taskIdList': [], 'tempAction': None, 'memTotal': 0, 'memFree': 0, 'sslConfigAvailable': False, 'sslEnabledByCVP': False, 'lastSyncUp': 0, 'type': 'netelement', 'dcaKey': None, 'containerName': 'HQ',
'name': 'rd-sw055','deviceSpecificConfiglets': ['rd-sw055'], 'imageBundle': ''}) => {
"msg": "rd-sw055"
ok: [hq] => (item={'hostname': 'rd-sw01', 'danzEnabled': False, 'mlagEnabled': False, 'streamingStatus': 'active', 'status': 'Registered','bootupTimeStamp': 1605618537.210405, 'internalBuildId': '8c8dfbf2-a4d1-420a-9c9c-59f6aa67a14e', 'taskIdList': [], 'tempAction': None, 'memTotal': 0, 'memFree': 0, 'sslConfigAvailable': False, 'sslEnabledByCVP': False, 'lastSyncUp': 0, 'type': 'netelement', 'dcaKey': None, 'containerName': 'HQ',
'name': 'rd-sw01','deviceSpecificConfiglets': ['rd-sw01'], 'imageBundle': ''}) => {
"msg": "rd-sw01"
I want it to show only the item with the 'name': 'rd-sw01' how can I do it?
I have tried using
loop_control:
label: '{{ item.name }}'
At the end of the playbook but this will only show name value and not the whole item values.
End result wanted:
ok: [hq] => (item={'hostname': 'rd-sw01', 'danzEnabled': False, 'mlagEnabled': False, 'streamingStatus': 'active', 'status': 'Registered','bootupTimeStamp': 1605618537.210405, 'internalBuildId': '8c8dfbf2-a4d1-420a-9c9c-59f6aa67a14e', 'taskIdList': [], 'tempAction': None, 'memTotal': 0, 'memFree': 0, 'sslConfigAvailable': False, 'sslEnabledByCVP': False, 'lastSyncUp': 0, 'type': 'netelement', 'dcaKey': None, 'containerName': 'HQ',
'name': 'rd-sw01','deviceSpecificConfiglets': ['rd-sw01'], 'imageBundle': ''}) => {
"msg": "rd-sw01"

Answer 1

You do want a when condition here:
- debug:
var: item
loop: "{{ devices }}"
when: item.name == 'rd-sw01'
loop_control:
label: "{{ item.name }}"
Or even, simpler, skip the loop:
- debug:
var: devices | selectattr("name", "eq", "rd-sw01")