Ansible register variable from facts output - ansible

Question

I'm using Ansible playbook to get information about the server's hardware internals through iDrac controller. It is performed by 3rd party module, which uses API to connect to the device.
I get server's internals info (controllers, disks, CPU information, etc.) by running the task. And I would like to register some variables from such output (the output is just shortened by dots).
I kept the main structure of output, to make it clear:
ok: [rac1] => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python3"
},
"changed": false,
"invocation": {
"module_args": {
"ca_path": null,
"idrac_ip": "192.168.168.100",
"idrac_password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
"idrac_port": 443,
...
}
},
"msg": "Successfully fetched the system inventory details.",
"system_info": {
"BIOS": [
{
"BIOSReleaseDate": "09/14/2022",
"FQDD": "BIOS.Setup.1-1",
…
}
],
"CPU": [
{
"CPUFamily": "Intel(R) Xeon(TM)",
"Characteristics": "64-bit capable",
"CurrentClockSpeed": "2.1 GHz",
…
},
{
"CPUFamily": "Intel(R) Xeon(TM)",
"Characteristics": "64-bit capable",
…
}
],
"Controller": [
{
"Bus": "67",
"CacheSize": "8192.0 MB",
"DeviceDescription": "RAID Controller in SL 3",
"FQDD": "RAID.SL.3-1",
"Key": "RAID.SL.3-1",
…
},
I need to get only couple values from output (PCI slot num where RAID controller is located):
"DeviceDescription": "RAID Controller in SL 3",
"Key": "RAID.SL.3-1"
But I have no clue, which example from documentation can I use to register value to variable.
Considering this is a third party module. The task execution is very slow, so it is not so easy for me to play with it as much as possible.
Could somebody suggest me please, which direction should I dig? I'm not a big expert in Ansible yet.
My role's tasks are following below.
I tried to get nested values using debug task(just to figure out key which I need to register), like this, but no luck:
### Get inventory key:value pairs and trying to save certain value to variable ###:
- name: Get Inventory
dellemc.openmanage.idrac_system_info:
idrac_ip: "{{ idrac_ip }}"
idrac_user: "{{ idrac_user }}"
idrac_password: "{{ idrac_password }}"
validate_certs: False
register: ansible_facts[system_info][Controller][FQDD].result
### Trying to show my saved variable in this task ###
- name: print registered value
debug:
var: RAID slot is at "{{ result }}"
verbosity: 4
I get this message after launching playbook:
"msg": "Unsupported parameters for (dellemc.openmanage.idrac_system_info) module: register. Supported parameters include: idrac_ip, timeout, idrac_user, ca_path, idrac_port, validate_certs, idrac_password (idrac_pwd)."

Answer 1

Since you are providing already valid output, how do have generated that? How was it "printed"?
A minimal example playbook
---
- hosts: rac1
become: false
gather_facts: false
vars:
result:
system_info: {
"BIOS": [
{
"BIOSReleaseDate": "09/14/2022",
"FQDD": "BIOS.Setup.1-1"
}
],
"CPU": [
{
"CPUFamily": "Intel(R) Xeon(TM)",
"Characteristics": "64-bit capable",
"CurrentClockSpeed": "2.1 GHz"
},
{
"CPUFamily": "Intel(R) Xeon(TM)",
"Characteristics": "64-bit capable"
}
],
"Controller": [
{
"Bus": "67",
"CacheSize": "8192.0 MB",
"DeviceDescription": "RAID Controller in SL 3",
"FQDD": "RAID.SL.3-1",
"Key": "RAID.SL.3-1"
}
]
}
tasks:
- name: Show Facts
debug:
msg: "{{ result.system_info.Controller }}"
will result already into the expected output of
TASK [Show Facts] *****************************
ok: [rac1] =>
msg:
- Bus: '67'
CacheSize: 8192.0 MB
DeviceDescription: RAID Controller in SL 3
FQDD: RAID.SL.3-1
Key: RAID.SL.3-1
Regarding
which example from documentation can I use to register value to variable.
you may read about Registering variables. For registering results, even for 3rd-party or Custom Modules the structure will be
- name: Task
module_name:
module_parameter: values
register: variable_name
That's why you get an syntax error
Unsupported parameters for (dellemc.openmanage.idrac_system_info) module: register.
about the incorrect indention. Therefore try first
- name: Get Inventory
dellemc.openmanage.idrac_system_info:
idrac_ip: "{{ idrac_ip }}"
idrac_user: "{{ idrac_user }}"
idrac_password: "{{ idrac_password }}"
validate_certs: False
register: inventory
- name: Show Inventory
debug:
msg: "{{ inventory }}"
to get familiar with the result set and data structure.
Further documentation which might help are Return Values and idrac_system_info module – Get the PowerEdge Server System Inventory.