Getting started with ansible on fedora 26

Once we have installed Ansible, it can be tested with localhost without much of additional configuration.

Setup passwordless SSH

$ ssh-copy-id cipher@localhost
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/home/cipher/.ssh/id_rsa.pub"
Number of key(s) added: 1

Test Ansible with ping

$ ansible all -i localhost, -m ping
localhost | SUCCESS => {
    "changed": false,
    "ping": "pong"
}

Ansible inventory file

The default inventory file is at /etc/ansible/hosts. Example:

mail.example.com

[webservers]
one.ansible.box
two.ansible.box

[dbservers]
three.ansible.box
four.ansible.box

Cloning VMs for Ansible testing

Create new volumes and use virt-clone to clone existing VMs:

$ sudo virsh vol-create-as store linux3 25G
Vol linux3 created

$ sudo virsh vol-create-as store linux4 25G
Vol linux4 created

$ virt-clone --force -o linux3 -n linux4 -f /dev/store/linux4
Clone 'linux4' created successfully.

Reset the cloned VM with virt-sysprep

$ virt-sysprep -d linux4
[   0.0] Examining the guest ...
[  36.6] Performing "abrt-data" ...
...
[  45.7] Performing "lvm-uuids" ...

Check VMs

$ virsh list
 Id    Name                           State
----------------------------------------------------
 2     linux3                         running
 4     linux4                         running