First Ansible:-Use the ping module to ping all the nodes in your inventory

Use the ping module to ping all the nodes in your inventory:

[sai@san-master-anisble ~]$cat /etc/ansible/hosts
192.161.1.10

[sai@san-master-anisble ~]$ ansible all -m ping -u root -k
SSH password:
192.161.1.10| SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}


[sai@san-master-anisble ~]$ ansible all -a "/bin/echo hello" -u root -k
SSH password:
192.161.1.11 | CHANGED | rc=0 >>
hello
[sai@san-master-anisble ~]$

If you need privilege escalation (sudo) to run a command, pass the become flags:

Case1:- noc // from noc user switched to root

[sai@san-master-anisble ~]$ ansible all -m ping -u noc --become
192.161.1.11 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}

Case 2: from noc user to switch to noc1
[sai@san-master-anisble ~]$ ansible all -m ping -u noc --become --become-user noc1
192.161.1.11 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
[sai@san-master-anisble ~]$