This is a short post on how to create a basic role to reference the ping module in Ansible.
Directory Structure
This is our directory strucuture:
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$ tree .
.
├── inventory.ini
├── playbooks
│ └── myplaybook.yml
└── roles
└── ping
└── tasks
└── main.yml
4 directories, 3 files
Create the directories:
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$ mkdir -p playbooks
$ mkdir -p roles/ping/tasks
Our inventory.ini includes the hosts that we will be using, and in this case I will be defining a group named rpifleet with all the host nested under that group and I’m using the user pi and my private ssh key ~/.ssh/id_rsa:
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$ cat inventory.ini
[rpifleet]
rpi-01 ansible_host=rpi-01.local ansible_user=pi ansible_ssh_private_key_file=~/.ssh/id_rsa ansible_python_interpreter=/usr/bin/python3
rpi-02 ansible_host=rpi-02.local ansible_user=pi ansible_ssh_private_key_file=~/.ssh/id_rsa ansible_python_interpreter=/usr/bin/python3
[rpifleet:vars]
ansible_ssh_common_args='-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null'
Next our role is a basic role that will reference our ping module, so from our main playbook we will reference the role that we are defining:
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$ cat roles/ping/tasks/main.yml
---
- name: Test Ping
action: ping
Now that we have defined our ping role, we need to include it into our playbook:
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$ cat playbooks/myplaybook.yml
---
- name: ping raspberry pi fleet
hosts: rpifleet
roles:
- { role: ../roles/ping }
You will see due to my playbooks directory being non-default, I defined the path to the role directory.
Install Ansible
Next we need to install ansible:
Run the Ansible Playbook
Now run the playbook which will ping the nodes using ssh. Using the ping module is useful when testing the connection to your nodes:
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$ ansible-playbook -i inventory.ini playbooks/myplaybook.yml
PLAY [ping raspberry pi fleet] *****************************************************
TASK [Gathering Facts] *************************************************************
ok: [rpi-02]
ok: [rpi-01]
TASK [../roles/ping : Test Ping] ***************************************************
ok: [rpi-02]
ok: [rpi-01]
PLAY RECAP *************************************************************************
rpi-01 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
rpi-02 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
Thank You
Thanks for reading