os10_network_validation : Name or service not known

[solune]

Hello,

SUMMARY

Only with the network_validation role, other works very well, ssh is unable to find hostname to connect either with libssh or with paramiko.
I followed the directions in the role readme file.

ISSUE TYPE

• Bug Report

COMPONENT NAME

ANSIBLE VERSION

ansible [core 2.16.0]
  config file = /work/ansible.cfg
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.13/site-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/local/bin/ansible
  python version = 3.13.1 (main, Jan 24 2025, 21:28:37) [GCC 10.2.1 20210110] (/usr/local/bin/python3.13)
  jinja version = 3.1.5
  libyaml = True

COLLECTION VERSION

Collection        Version
----------------- -------
ansible.netcommon 2.6.1  
ansible.utils     5.1.2  
dellemc.os10      1.2.0  

CONFIGURATION

CONFIG_FILE() = /work/ansible.cfg
DEFAULT_VAULT_PASSWORD_FILE(/work/ansible.cfg) = /work/vault_passwd
HOST_KEY_CHECKING(/work/ansible.cfg) = False

OS / ENVIRONMENT

It run in a docker built like this:

RUN apt-get update && apt-get install -y \
    ssh \
    sshpass \
    vim \
    gcc \
    libssh-dev \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /tmp
COPY python-requirements.txt /tmp
RUN pip install -r python-requirements.txt && rm python-requirements.txt

COPY ansible-requirements.yml /home/ansible/requirements.yml
RUN ansible-galaxy install -r /home/ansible/requirements.yml

WORKDIR /work

ansible-requirements.yaml:

  - name: dellemc.os10
  - name: ansible.netcommon

python-requirements.yaml:

paramiko
ansible-pylibssh
xmltodict
lxml
xmltodict
textfsm
units
PyYAML

STEPS TO REPRODUCE

playbook:

---
- name: setup wiring validation
  hosts: localhost
  gather_facts: false
  connection: local
  collections:
    - dellemc.os10
  tasks:
    - import_role:
        name: os10_network_validation
        tasks_from: wiring_validation.yaml

Inventory:

---
all:
    children:
        spines:
            hosts:
                sw5232rc9:
                sw5232rg2:
        leaves:
            hosts:
                sw5296rc9a:
                sw5296rc9b:
                sw5248rg2a:
                sw5248rg2b:
                sw41ilea:
                sw41ileb:
                sw41rc9:

group_vars/all/all.yaml:

---
#Ansible settings
ansible_network_os: dellemc.os10.os10
ansible_network_cli_ssh_type: libssh
ansible_user: admin
ansible_password: "{{ vault_os10_password }}"
ansible_command_timeout: 120

cli:
 username: "{{ os10_cli_user | default('admin') }}"
 password: "{{ os10_cli_pass | default('admin') }}"

os10_cfg_generate: true
os10_cli_user: admin
os10_cli_pass: "{{ vault_os10_password }}"

intended_neighbors:
...

host_vars/sw5232rc9.yaml:

---
hostname: sw5232rc9
ansible_host: 10.19.0.60

cli:
 host: 10.19.0.60

EXPECTED RESULTS

ACTUAL RESULTS

PLAY [setup wiring validation] ***************************************************************************************************************************************
redirecting (type: action) dellemc.os10.os10_command to dellemc.os10.os10

TASK [dellemc.os10.os10_network_validation : Get Dell EMC OS10 wiring info] ******************************************************************************************
task path: /root/.ansible/collections/ansible_collections/dellemc/os10/roles/os10_network_validation/tasks/wiring_validation.yaml:2
redirecting (type: action) dellemc.os10.os10_command to dellemc.os10.os10
redirecting (type: action) dellemc.os10.os10_command to dellemc.os10.os10
<10.19.0.60> using connection plugin network_cli
redirecting (type: connection) ansible.builtin.persistent to ansible.netcommon.persistent
The full traceback is:
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/ansible/executor/task_executor.py", line 120, in run
    item_results = self._run_loop(items)
  File "/usr/local/lib/python3.13/site-packages/ansible/executor/task_executor.py", line 335, in _run_loop
    res = self._execute(variables=task_vars)
  File "/usr/local/lib/python3.13/site-packages/ansible/executor/task_executor.py", line 641, in _execute
    result = self._handler.run(task_vars=vars_copy)
  File "/root/.ansible/collections/ansible_collections/dellemc/os10/plugins/action/os10.py", line 88, in run
    out = conn.get_prompt()
  File "/usr/local/lib/python3.13/site-packages/ansible/module_utils/connection.py", line 200, in __rpc__
    raise ConnectionError(to_text(msg, errors='surrogate_then_replace'), code=code)
ansible.module_utils.connection.ConnectionError: [Errno -2] Name or service not known
fatal: [localhost]: FAILED! => {
    "msg": "Unexpected failure during module execution: [Errno -2] Name or service not known",
    "stdout": ""
}

``