Bug Fix

[High] Add a check on GROUP var (must be uppercase)
[Medium] Bug 'ansible_user' undefined (resolved) => libvirt_inventory.py can't retrieve dhcp lease (sudo dhclient eth0) => launch ./virtual-manage --renew-dhcp_
[Minor] Fix gracefully-shutdown
[Minor] Fix idempotency when playbook is running twice
[Minor] Fix issue when os_image is not present in {{ tmp_dir }}

Todo list

[High] Manage LXC cluster
[High] Refactor documentation (add virtual-manage explanation, add schemas, ...)
[High] Cleanup DNS & APT docker stuff
[Medium] Manage LXC & KVM cluster in the same cluster
[Medium] Use Libvirt NSS module instead of using /etc/hosts file https://libvirt.org/nss.html
[Minor] Add label to loop in order to simplify loop iteration display
[Minor] In case of many interfaces add a check to get external interface first
[Minor] Add task to wait for Flatcar VMs ready
[Minor] Fix DNS issue when using Docker DNS server instead of Libvirt dnsmasq
[Minor] Remove shutdown before snapshot => use qemu-guest-agent (fsfreeze before snapshot) => NO: external snapshot doesn't manage Guest VM
[Minor] Introduce virtio-fs https://virtio-fs.gitlab.io/ => take a look at https://virt-lightning.org/ => https://github.com/hicknhack-software/ansible-libvirt