Unable to use ansible playbook to upgrade BIGIP - VE to 15.1.6.1 from 15.1.5.1

Hey vkrishna91 

So i just tested out the code  in a 17.x box and seemed to work ill have to deploy out a 15.1.x like you had to confirm that its still working but this is what i have.

---
- name: Upgrade BIG-IP software
  hosts: bigip_hosts
  gather_facts: False
  vars_files:
    - vars/vars.yml
  vars:
    provider:
      password: "{{ f5_pass }}"
      server: "{{ ansible_host }}"
      user: "{{ f5_user }}"
      validate_certs: False

  tasks:
    - name: Get available volume number to use
      ansible.builtin.script: "{{ playbook_dir }}/files/cal_vol.sh"
      register: vol

    - debug:
        var: vol

Directory Layout

[root@DS9 test]# ls -AlFh
total 8.0K
-rw-r--r--. 1 root root 262 Oct 11 14:35 ansible.cfg
drwxr-xr-x. 2 root root  24 Oct 11 14:44 files/
drwxr-xr-x. 2 root root  27 Oct 11 14:45 inventory/
-rw-r--r--. 1 root root 435 Oct 11 14:45 upgrade.yaml
drwxr-xr-x. 2 root root  22 Oct 11 14:39 vars/

[root@DS9 test]# ls -AlFh files/
total 4.0K
-rw-r--r--. 1 root root 382 Oct 11 14:43 cal_vol.sh
[root@DS9 test]# cat inventory/inventory.yml
[bigip_hosts]
test-bip ansible_host=10.192.1.10 ansible_user=root ansible_password=xxxxxxxxx

[root@DS9 test]# cat vars/vars.yml
---
###F5_ENV
#BIG-IP
f5_user: admin
f5_pass: "xxxxxxxxx"
f5_admin_port: 443

[root@DS9 test]# cat files/cal_vol.sh
#!/bin/bash
OLDIFS="$IFS"
IFS=$'\n'
disk=$(/bin/tmsh show sys sof status | awk '/.D[1-9]/{print substr($1,1,4)}' | head -n1)
maxvnumber=0

for vnumber in $(/bin/tmsh show sys sof status | grep complete)
do

vnumber=${vnumber:4:2}
vnumber=${vnumber// /}

if (( vnumber > maxvnumber )); then
maxvnumber=$vnumber
fi
done

volume=$disk$((maxvnumber + 3))
echo -n $volume
IFS="$OLDIFS"


[root@DS9 test]# cat ansible.cfg
[defaults]
host_key_checking = False
library = library:/usr/share/ansible/plugins/modules
module_utils = module_utils:/usr/share/ansible/plugins/modules/ansible-for-nsxt/module_utils
ansible_python_interpreter=/usr/bin/python3
inventory = inventory/inventory.yml

Execution of the Code

[root@DS9 test]# ansible-playbook upgrade.yaml

PLAY [Upgrade BIG-IP software] ***************************************************************************************************************************************************

TASK [Get available volume number to use] ****************************************************************************************************************************************
changed: [test-bip]

TASK [debug] *********************************************************************************************************************************************************************
ok: [test-bip] => {
    "vol": {
        "changed": true,
        "failed": false,
        "rc": 0,
        "stderr": "Shared connection to 10.192.1.10 closed.\r\n",
        "stderr_lines": [
            "Shared connection to 10.192.1.10 closed."
        ],
        "stdout": "HD1.5",
        "stdout_lines": [
            "HD1.5"
        ]
    }
}

PLAY RECAP ***********************************************************************************************************************************************************************
test-bip                   : ok=2    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

Here is my ansible build info

[root@DS9 test]# ansible --vers
ansible [core 2.12.4]
  config file = /git/test/ansible.cfg
  configured module search path = ['/git/test/library', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.9/site-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/local/bin/ansible
  python version = 3.9.6 (default, Nov  9 2021, 13:31:27) [GCC 8.5.0 20210514 (Red Hat 8.5.0-3)]
  jinja version = 3.1.1
  libyaml = True

in your code you wont need the HD.{{vol.stdout}} you can just use {{vol.stdout}}

Let me try a 15.x build but i dont think there would be a difference...