I'm querying a vmware ESX box to get the disk IDs using Ansible, however, I'm unable to loop over the stdout_lines which appears to be a standard list.
Here is my query:
- name: Collect vSAN disk list
raw: esxcli storage core device list | grep Devfs
delegate_to: esx_box
register: disk_list
- name: Print disk list
debug:
msg: "{{ disk_list.stdout_lines }}"
The output for the debug is as follows:
ok: 1/1 [esx_box] => {
"msg": [
" Devfs Path: /vmfs/devices/disks/naa.12354ABCDEFGHIJK",
" Devfs Path: /vmfs/devices/disks/naa.12354ABCDEFGHIJK",
" Devfs Path: /vmfs/devices/disks/t10.ATA_____DELLBOSS_VD_____________________________12354ABCDEFGHIJK",
" Devfs Path: /vmfs/devices/disks/naa.12354ABCDEFGHIJK",
" Devfs Path: /vmfs/devices/disks/naa.12354ABCDEFGHIJK",
" Devfs Path: /vmfs/devices/disks/naa.12354ABCDEFGHIJK",
" Devfs Path: /vmfs/devices/genscsi/naa.12354ABCDEFGHIJK",
" Devfs Path: /vmfs/devices/genscsi/eui.12354ABCDEFGHIJK"
]
}
Now, I wanted to loop disk_list.stdout_lines as follows
- name: Loop over stdout_lines
debug:
msg: "{{ item }}"
loop: "{{ disk_list.stdout_lines }}"
But, I do not get any output for the above step. I'm not sure whats happening here. The stdout_lines looks to be a proper python list with items in quotes, however the loop with {{ item }} simply doesn't loop over.
2 Answers
Finally found what the issue was.
In my ansible.cfg, I had the stdout_callback=counter_enabled and this messes up with the stdout when loops are used. Although the tasks pertaining to loop does work, but doesn't show up in stdout, which confuses the user to assume the loop hasn't executed as intended.
To fix, I had to set stdout_callback=default
when using: with_items it should work.
