You can get to registered nested variables by using jinja filters.
Register the output of a variable and then use Jinja filters to get to the attribute you want to show
- debug:
var: zabbix_host.hosts | map(attribute='parentTemplates') | flatten | map(attribute='name')
Before applying Jinja filters
TASK [debug] ************************************************************************************
ok: [localhost] => {
"zabbix_host.hosts": [
{
"auto_compress": "1",
"available": "1",
"description": "",
"disable_until": "0",
"discover": "0",
"error": "",
"errors_from": "0",
"flags": "0",
"maintenance_from": "0",
"maintenance_status": "0",
"maintenance_type": "0",
"maintenanceid": "0",
"name": "db0061",
"parentTemplates": [
{
"name": "Template OS Linux",
"templateid": "10001"
},
{
"name": "EMA_Comprobacion_WEB",
"templateid": "11637"
}
],