Extend kvm role to execute without Frontend

[balazsbme]

Move "add tags to KVM role" commit from forked repo.

Original commit in the fork

    commit d39902363fb08b7618f3452661ff57ee188d1615
    Author: Alejandro Mosteiro <amosteiro@opennebula.io>
    Date:   Thu Feb 5 13:28:22 2026 +0100

    M #-: Add tags to KVM role
    Add tags the SSH slurp and adding host to OpenNebula tasks, this way it is possible to run KVM role without a Frontend

[balazsbme]

@Aletibazo to confirm whether this will be solved by the PR #173 that improves the infra role, or we still need it.

[sk4zuzu]

🤔 So what's the idea here? What is your use case? How do you use the tag?

[Aletibazo]

This was a workaround to configure a node without adding it to an OpenNebula installation, so it could be used as infra. No need for this if PR #173 is merged, since it includes the needed changes to install libvirt when running infra playbook. Tag was used like this:

ansible-playbook -i inventory.yml opennebula.deploy.main --tags "node,preinstall,libvirt" --skip-tags "add_node_to_opennebula" --limit "node" -e "leader=skip"