This is my playbook
---
- hosts: mytestserver
become: true
become_method: sudo
gather_facts: true
vars:
# To get vgname and lvname from ansible_mounts's device
mt: "{{ MT }}" #Extravariable
disp_pth: "{{ item['device'] }}"
disp_tmp: "{{ disp_pth | basename }}"
DISP: "{{ disp_tmp.split('-') }}"
VGname: "{{ DISP.0 }}"
LVname1: "{{ DISP.1 }}"
DISPP2: "{{ DISP.3|default('') }}"
LVname2: "{{ DISP.1 }}-{{ DISPP2 }}"
LVname: "{{ LVname2 if (disp_tmp | regex_search('--')) else LVname1 }}"
tasks:
- name: Get filesystem values
lvol:
vg: "{{ VGname }}"
lv: "{{ LVname }}"
with_items: "{{ ansible_mounts }}"
when: item.mount == MT
register: myfs
- debug:
var: myfs
When I excecute it:
$ ansible-playbook -i proyects/Inventory/awx_hosts -l mytestserver getlvmfacts.yml -e MT=/DATA
I get the values:
PLAY [mytestserver] ******************************************************************************************************************************************************************************************************************
TASK [Gathering Facts] ******************************************************************************************************************************************************************************************************************
ok: [mytestserver]
TASK [Get filesystem values] ************************************************************************************************************************************************************************************************************
ok: [mytestserver] => (item={'block_used': 21620, 'uuid': '7fef92b8-8157-43d1-92b4-525a56fa33f8', 'size_total': 1056858112, 'block_total': 258022, 'mount': '/DATA', 'block_available': 236402, 'size_available': 968302592, 'fstype': 'ext4', 'inode_total': 65536, 'options': 'rw', 'device': '/dev/mapper/vgAPP-DATA', 'inode_used': 11, 'block_size': 4096, 'inode_available': 65525})
TASK [debug] ****************************************************************************************************************************************************************************************************************************
ok: [mytestserver] => {
"myfs": {
"changed": false,
"msg": "All items completed",
"results": [
{
"ansible_loop_var": "item",
"changed": false,
"item": {
"block_available": 414770,
"block_size": 4096,
"block_total": 516052,
"block_used": 101282,
"device": "/dev/mapper/vg00-lvol01",
"fstype": "ext3",
"inode_available": 124211,
"inode_total": 131072,
"inode_used": 6861,
"mount": "/",
"options": "rw",
"size_available": 1698897920,
"size_total": 2113748992,
"uuid": "7df9171b-c31f-434f-94c5-344d02775e89"
},
"skip_reason": "Conditional result was False",
"skipped": true
},
{
"ansible_loop_var": "item",
"changed": false,
"item": {
"block_available": 1037688,
"block_size": 4096,
"block_total": 1046016,
"block_used": 8328,
"device": "/dev/mapper/vgDATA-BASET--DATA1",
"fstype": "xfs",
"inode_available": 4194301,
"inode_total": 4194304,
"inode_used": 3,
"mount": "/BASET/DATA1",
"options": "rw",
"size_available": 4250370048,
"size_total": 4284481536,
"uuid": "91689e9b-552c-4f0e-b0ec-0d3d25154a72"
},
"skip_reason": "Conditional result was False",
"skipped": true
},
{
"ansible_loop_var": "item",
"changed": false,
"failed": false,
"invocation": {
"module_args": {
"active": true,
"force": false,
"lv": "DATA",
"opts": null,
"pvs": null,
"resizefs": false,
"shrink": true,
"size": null,
"snapshot": null,
"state": "present",
"thinpool": null,
"vg": "vgAPP"
}
},
"item": {
"block_available": 236402,
"block_size": 4096,
"block_total": 258022,
"block_used": 21620,
"device": "/dev/mapper/vgAPP-DATA",
"fstype": "ext4",
"inode_available": 65525,
"inode_total": 65536,
"inode_used": 11,
"mount": "/DATA",
"options": "rw",
"size_available": 968302592,
"size_total": 1056858112,
"uuid": "7fef92b8-8157-43d1-92b4-525a56fa33f8"
},
"lv": "DATA",
"size": 1024.0,
"vg": "vgAPP"
},
{
"ansible_loop_var": "item",
"changed": false,
"item": {
"block_available": 472667,
"block_size": 4096,
"block_total": 516052,
"block_used": 43385,
"device": "/dev/mapper/vg00-lvol07",
"fstype": "ext3",
"inode_available": 131061,
"inode_total": 131072,
"inode_used": 11,
"mount": "/tivoli",
"options": "rw",
"size_available": 1936044032,
"size_total": 2113748992,
"uuid": "2310d046-eaad-4419-a94b-197c2c56502c"
},
"skip_reason": "Conditional result was False",
"skipped": true
}
]
}
}
To the end of the matched mount point (/DATA) there are three filesystems parameters:
"lv": "DATA",
"size": 1024.0,
"vg": "vgAPP"
The question is: How can I refer to this parameters?
I have tried using myfs.lv but don't work and varius more ways.
I think this is because those aren't inside 'item'
Desired:
using somthing like "myfs.lv" and get "DATA"
hope you can help.
Thanks in advance!
Best Answer
If you refer to the structure that debug outputs you can see that
myfs.lvis clearly wrong, because the only keys at the top level aremsg,changed, andresults.When you run a task in a loop, the results are stored as a list under the
resultskey of the registered variable. To access that particular result, you would do something likemyfs.results.2.lv.Hardcoding an index like this is generally not what you want, though, so you should instead do something to select the result you want.
(myfs.results | reject('skipped') | list | first).lvwould retrievelvfor the first non-skipped result.Or, of course, you could make this easier on yourself by not looping in the first task: