Mastering Ceph - Second Edition

Testing

To verify that Ansible is working correctly and that we can successfully connect and run commands remotely, let's use ping with Ansible to check one of our hosts. Note: this is not like a network ping; Ansible's ping confirms that it can communicate via SSH and execute commands remotely:

$ ansible mon1 -m ping  

Excellent, that worked. Now let's run a simple command remotely to demonstrate Ansible's capabilities. The following command will retrieve the currently running kernel version on the specified remote node:

$ ansible mon1 -a 'uname -r'