* Add pod creation, so that when we remove the hypervisor
then all the VMs also get removed automatically
* virtinst is only used when creating/installing VMs, so
only install on hypervisor nodes
* Only grab the top vlan if we have 2, this typically
means that we have an ipv4 and ipv6 IP. Could probably
do this better, but keep it simple for the time being
* Update the function, such that when subnet_id is null, then based on
the vlan, grab the details from the subnets defined, and update the
links based on this. This ensures that all subnets are auto-assigned
and the externel_vlan is dhcp from the upstream network
* Revert the network_auto function, as the above change would help with
the issues we faced before
* Update all the maas function calls, and assign them to a variable or
direct the output to /dev/null, as we don't want the screen to be
filled with all the information
TODO: Have viable output to the CLI, so that you have some details of
what is going on
* So that all the networks now will have be either static, auto or dhcp
* network_auto will not work out of the box, it can only effectively
work after commissioning of a machine
* Move stuff from common to default, as it didn't make sense
* use virsh_user instead, that was its more customisable
* Revert the change to manage-maas-nodes.sh now use extra function to
call maas_auto_assign_networks instead
* More comments to the code
* Move all configs into config directory
* Move all examples into example directoy
* Move all common functions into functions.sh
* Fine tune a few other functions
* Moved common hypervisor config away
* Added examples for some of the hypervisor configs
* Start work on snap enablement of boostrap-maas.sh script
* Make the variables consistent across all the functions
* build_fanout instead of build_timeout
* Release machine in maas, if we're wiping the disk for re-using
* Move the for loop to check for machine being ready into a function,
so that it's re-usable
* Update some formatting fixes to README.md
* Use the maas snap for the maas-cli stuff, as there is no recent maas-cli deb
* update the way to tag a node, which now works
* put back the double ampersand for creating the VM
* The script now adds N control nodes at the beginning
* Adds 4 extra interfaces, VLANs in my environment
* Adds the VMs to MAAS, commissions them, and updates the interfaces.
* Add a function that just wipes the VM disks, for re-purposing.
This allows to release the machines in MAAS, and then re-use them
without having to re-add/commission the machines.
