OpenNebula

This has been proposed by Willem van Engen in the mailing list:

Hi,
I'm using the default MAC assignment schema so that OpenNebula can hand out a MAC and IP to each instance. The resulting IP is given to the instance using the contextualization feature:
CONTEXT = [
target = "sdc",
hostname = "$NAME",
ip = "$NIC[IP]"
]
Now I would like to add netmask, nameserver and gateway to the context as well so that it can be set in the bootscript in the guest. My gateway and nameserver are dependent on the selected network, however. Now would it be possible to add extra variables to a network template, which can be referenced from the vm template? This would allow me to specify all network-related settings in a single place.
I'm thinking of a network config like the following:
NAME = "Private"
TYPE = RANGED
BRIDGE = xenbr1
NETWORK_ADDRESS = 10.198.6.0
NETWORK_SIZE = 200 # other network settings
NETMASK = 255.255.255.0
GATEWAY = 10.198.6.240
NS = 10.198.6.240
with a context like this:
CONTEXT = [
target = "sdc",
hostname = "$NAME",
ip = "$NIC[IP]",
netmask = "$NIC[NETMASK]",
gateway = "$NIC[GATEWAY]",
ns = "$NIC[NS]"
]
I'm eager to learn if there is a way to propagate additional network-specific settings to a vm template.
Kind regards,
- Willem??