【小ネタ】Ansibleでpingを飛ばせない場合の対処方法

はじめに

Mac上にbrewでAnsibleをインストールしました。(Ansible勉強中)
そこで、pingの実行に少々苦戦をしましたので、対処方法を載せたいと思います。

事象

1つの対象にpingを実行すると、下記のようなエラーが表示される。

実行結果

% ansible -i 192.168.56.51 all -m ping --connection=local 
[WARNING]: Unable to parse /Users/satton/etc/ansible/192.168.56.51 as an inventory source
[WARNING]: No inventory was parsed, only implicit localhost is available
[WARNING]: provided hosts list is empty, only localhost is available. Note that the implicit
localhost does not match 'all'
% 

対処方法

IPアドレスの後に,を付ける。

実行結果

%  ansible -i 192.168.56.51, all -m ping --connection=local
[WARNING]: Platform darwin on host 192.168.56.51 is using the discovered Python interpreter at
/usr/bin/python, but future installation of another Python interpreter could change this. See
https://docs.ansible.com/ansible/2.9/reference_appendices/interpreter_discovery.html for more
information.
192.168.56.51 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
% 

※複数ホストにpingを実行することも可能

実行結果

% ansible -i 192.168.56.51,8.8.8.8,8.8.4.4 all -m ping --connection=local
[WARNING]: Platform darwin on host 8.8.4.4 is using the discovered Python interpreter at
/usr/bin/python, but future installation of another Python interpreter could change this. See
https://docs.ansible.com/ansible/2.9/reference_appendices/interpreter_discovery.html for more
information.
8.8.4.4 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
[WARNING]: Platform darwin on host 192.168.56.51 is using the discovered Python interpreter at
/usr/bin/python, but future installation of another Python interpreter could change this. See
https://docs.ansible.com/ansible/2.9/reference_appendices/interpreter_discovery.html for more
information.
192.168.56.51 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
[WARNING]: Platform darwin on host 8.8.8.8 is using the discovered Python interpreter at
/usr/bin/python, but future installation of another Python interpreter could change this. See
https://docs.ansible.com/ansible/2.9/reference_appendices/interpreter_discovery.html for more
information.
8.8.8.8 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
% 

参考

[小ネタ] Pythonのバージョンを指定してAnsible実行時に表示される警告を消す