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3.11. Creating a vNIC
To ensure that a newly created virtual machine has network access you must create and attach a vNIC.
This Ruby example creates a vNIC and attaches it to an existing virtual machine, myvm.
Find the root of the tree of services:
Find the virtual machine:
In order to specify the network that the new NIC will be connected to, you must
specify the identifier of the vNIC profile. However, there may be multiple
profiles with the same name (for different data centers, for example), so first
you must find the networks that are available in the cluster that the
virtual machine belongs to.
Now that you know what networks are available in the cluster, you can select a
vNIC profile that corresponds to one of those networks, and has the
name that you want to use. The system automatically creates a vNIC
profile for each network, with the same name as the network.
Locate the service that manages the network interface cards collection of the
virtual machine:
Add the new network interface card:
# Find the root of the tree of services:
system_service = connection.system_service
# Find the virtual machine:
vms_service = system_service.vms_service
vm = vms_service.list(search: 'name=myvm').first
# In order to specify the network that the new NIC will be connected to, you must
# specify the identifier of the vNIC profile. However, there may be multiple
# profiles with the same name (for different data centers, for example), so first
# you must find the networks that are available in the cluster that the
# virtual machine belongs to.
cluster = connection.follow_link(vm.cluster)
networks = connection.follow_link(cluster.networks)
network_ids = networks.map(&:id)
# Now that you know what networks are available in the cluster, you can select a
# vNIC profile that corresponds to one of those networks, and has the
# name that you want to use. The system automatically creates a vNIC
# profile for each network, with the same name as the network.
profiles_service = system_service.vnic_profiles_service
profiles = profiles_service.list
profile = profiles.detect { |p| network_ids.include?(p.network.id) && p.name == 'myprofile' }
# Locate the service that manages the network interface cards collection of the
# virtual machine:
nics_service = vms_service.vm_service(vm.id).nics_service
# Add the new network interface card:
nics_service.add(
OvirtSDK4::Nic.new(
name: 'mynic',
description: 'My network interface card',
vnic_profile: {
id: profile.id
}
)
)
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