This is the instruction to use Ansible to build a remote cluster for SREGym. We currently use CloudLab but we believe this will work on any servers you have access to.

cp inventory.yml.example inventory.yml

Modify the IPs and user names in the inventory file accordingly, inventory.yml.

ansible-playbook -i inventory.yml setup_cluster.yml

After these, you should see every node running inside the cluster:

kubectl get nodes

The playbook manages Ubuntu's generic 6.8 kernel only on architectures listed in generic_kernel_architectures (currently x86_64). Other architectures retain their provider kernel because kernel images and bootloader limits vary by platform. If a different platform has been validated with this kernel, add its Ansible architecture to that list in setup_cluster.yml.

If you're running into issues from Ansible related to host key authentication, try typing yes in your terminal for each node, or proceeding with the following steps:

You can create a file in the same directory as this README called ansible.cfg to turn off that warning:

[defaults]
host_key_checking = False

Be mindful about the security implications of disabling host key checking, if you're not aware ask someone who is.