Context: I have a system that has a combination of disks from different storage controllers, so each type of disk has different purpose. I'm new to ansible and learning as I go. Writing a playbook that gets the disk from each type of controller so I can set them up.
Ex. Below is sample output from #'filter=ansible_devices*' ... sdz device is from SATA controller. On my other hosts it might not always be sdz.. so I want to get the device name and store in a variable if in the facts the device has "host": "SATA controller". I'm thinking maybe I need to traverse through ansible_devices dictionaries, find the key that matches ("host": "SATA controller") and then get the parent dict for it which would be the device. Is there a way to do that.. or easier way? :)
"sdz": {
"holders": [
"mpathz"
],
"host": "SATA controller: Intel Corporation C610/X99 series chipset 6-Port SATA Controller [AHCI mode] (rev 05)",
"links": {
"ids": [
"ata-SAMSUNG_MZ7GE960HMHP-00003_S1Y2NYAFC02269",
"wwn-0x50025388003aeb2a"
],
"labels": [],
"masters": [
"dm-19"
],
"uuids": []
},
"model": "SAMSUNG MZ7GE960",
"partitions": {},
"removable": "0",
"rotational": "0",
"sas_address": null,
"sas_device_handle": null,
"scheduler_mode": "cfq",
"sectors": "1875385008",
"sectorsize": "512",
"serial": "S1Y2NYAFC02269",
"size": "894.25 GB",
"support_discard": "512",
"vendor": "ATA",
"virtual": 1,
"wwn": "0x50025388003aeb2a"
This tasks fragment in a playbook should do it, assuming ansible_devices
is already set as a variable
tasks:
- name: get device name
set_fact:
device_name: "{{ item.key }}"
no_log: True
with_dict: "{{ ansible_devices }}"
when: "item.value.host.startswith('SATA')"
- name: show all values for selected device name
debug: var=ansible_devices[device_name]
- name: show only device name
debug: var=device_name
The set_fact will get your device name. The two debug statements will dump all of the device values and just the device name, respectively.