ANSIBLE_SSH_ARGS not applied to hosts created with add_host

[samdoran]

SUMMARY

The settings in ANSIBLE_SSH_ARGS are not applied to any host created with add_host resulting in incorrect connection to those hosts.

ISSUE TYPE

• Bug Report

COMPONENT NAME

lib/ansible/plugins/connection/ssh.py

ANSIBLE VERSION

ansible 2.11.0.dev0
  config file = /Users/sdoran/.ansible.cfg
  configured module search path = ['/usr/local/share/ansible/library']
  ansible python module location = /Users/sdoran/Source/ansible/lib/ansible
  ansible collection location = /Users/sdoran/.ansible/collections:/usr/local/share/ansible/collections
  executable location = /Users/sdoran/Source/ansible/bin/ansible
  python version = 3.8.2 (default, May 12 2020, 12:11:39) [Clang 11.0.3 (clang-1103.0.32.59)]

CONFIGURATION

DEFAULT_LOG_PATH(env: ANSIBLE_LOG_PATH) = /Users/sdoran/.ansible/ansible.log
DEFAULT_VAULT_PASSWORD_FILE(env: ANSIBLE_VAULT_PASSWORD_FILE) = /Users/sdoran/bin/getvaultkey.sh
DEVEL_WARNING(env: ANSIBLE_DEVEL_WARNING) = False

OS / ENVIRONMENT

STEPS TO REPRODUCE

Run the following playbook passing ANSIBLE_SSH_ARGS as an environment variable

env ANSIBLE_SSH_ARGS='-o UserKnownHostsFile=/dev/null' ansible-playbook playbook.yml -vvv

- hosts: localhost
  gather_facts: no
  tasks:
    - add_host:
        name: delegatetome
        ansible_host: 127.0.0.1

- name: Play against added host
  hosts: delegatetome
  tasks:
    - ping:

EXPECTED RESULTS

ANSIBLE_SSH_ARGS are applied to the host created with add_host and used during connection.

(output truncated)

...
PLAY [Play against added host] ****************************************************************************************

TASK [Gathering Facts] ************************************************************************************************
<127.0.0.1> SSH: EXEC ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o...
...

ACTUAL RESULTS

Missing ANSIBLE_SSH_ARGS.

...
PLAY [Play against added host] ****************************************************************************************
META: ran handlers

TASK [ping] ***********************************************************************************************************
task path: /Users/sdoran/Projects/Vagrant/Ansible Lab/test-local.yml:16
<127.0.0.1> ESTABLISH SSH CONNECTION FOR USER: None
<127.0.0.1> SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s...
...

[ansibot]

Files identified in the description:

• lib/ansible/plugins/connection/ssh.py

If these files are incorrect, please update the component name section of the description or use the !component bot command.

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