Descreve como instalar e ativar o Edge virtual no KVM utilizando um ficheiro de configuração cloud-init.
- Utilize o gunzip para extrair o ficheiro qcow2 para a localização da imagem (por exemplo, /var/lib/libvirt/images).
- Crie os conjuntos de rede que vai utilizar para o dispositivo, utilizando o SR-IOV e OpenVswitch.
Utilizar o SR-IOV
Veja a seguir um modelo de interface de rede de amostras específico para os cartões NIC Intel X710/XL710 que utilizam o SR-IOV.
<interface type='hostdev' managed='yes'> <mac address='52:54:00:79:19:3d'/> <driver name='vfio'/> <source> <address type='pci' domain='0x0000' bus='0x83' slot='0x0a' function='0x0'/> </source> <model type='virtio'/> </interface>
Utilizar o OpenVSwitch
<network> <name>passthrough</name> <model type='virtio'/> <forward mode="bridge"/> <bridge name="passthrough"/> <virtualport type='openvswitch'> </virtualport> <vlan trunk='yes'> <tag id='33' nativeMode='untagged'/> <tag id='200'/> <tag id='201'/> <tag id='202'/> </vlan> </network> Bridge <network> <name>passthrough</name> <model type='virtio'/> <forward mode="bridge"/> </network> <domain type='kvm'> <name>vedge1</name> <memory unit='KiB'>4194304</memory> <currentMemory unit='KiB'>4194304</currentMemory> <vcpu placement='static'>2</vcpu> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <!-- Set the CPU mode to host model to leverage all the available features on the host CPU --> <cpu mode='host-model'> <model fallback='allow'/> </cpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/kvm-spice</emulator> <!-- Below is the location of the qcow2 disk image --> <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/var/lib/libvirt/images/edge-VC_KVM_GUEST-x86_64-2.3.0-18- R23-20161114-GA-updatable-ext4.qcow2'/> <target dev='sda' bus='sata'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <!-- If using cloud-init to boot up virtual edge, attach the 2nd disk as CD-ROM --> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/home/vcadmin/cloud-init/vedge1/seed.iso'/> <target dev='sdb' bus='sata'/> <readonly/> <address type='drive' controller='1' bus='0' target='0' unit='0'/> </disk> <controller type='usb' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <controller type='pci' index='0' model='pci-root'/> <controller type='sata' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </controller> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <!-- The first two interfaces are for the default L2 interfaces, NOTE VLAN support just for SR-IOV and OpenvSwitch --> < interfacetype='network'> < modeltype='virtio'/> < sourcenetwork='LAN1'/> < vlan>< tagid='#hole2_vlan#'/></ vlan> < aliasname=LAN1/> < addresstype='pci' domain='0x0000' bus='0x00' slot='0x12' function='0x0'/> </ interface> < interfacetype='network'> < modeltype='virtio'/> < sourcenetwork=LAN2/> < vlan>< tagid='#LAN2_VLAN#'/></ vlan> < aliasname='hostdev1'/> < addresstype='pci' domain='0x0000' bus=' 0x00' slot='0x13' function='0x0'/> </ interface> <!-- The next two interfaces are for the default L3 interfaces. Note that additional 6 routed interfaces are supported for a combination of 8 interfaces total --> < interfacetype='network'> < modeltype='virtio'/> < sourcenetwork=WAN1/> < vlan>< tagid='#hole2_vlan#'/></ vlan> < aliasname=LAN1/> < addresstype='pci' domain='0x0000' bus='0x00' slot='0x12' function='0x0'/> </ interface> < interfacetype='network'> < modeltype='virtio'/> < source network=LAN2/> < vlan>< tag id='#LAN2_VLAN#'/></ vlan> < aliasname='hostdev1'/> < addresstype='pci' domain='0x0000' bus='0x00' slot='0x13' function='0x0'/> </ interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'> <listen type='address' address='127.0.0.1'/> </graphics> <sound model='ich6'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </sound> <video> <model type='cirrus' vram='9216' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </memballoon> </devices> </domain>
- Guarde o ficheiro XML de domínio que define a VM (por exemplo, vedge1.xml criado no passo 2).
- Inicie a VM executando os seguintes passos:
- Crie a VM.
virsh define vedge1.xml
- Inicie a VM.
virsh start vedge1
Nota: Ovedge1
é o nome da VM definida no elemento<name>
do ficheiro XML do domínio. Substituavedge1
pelo nome que especifica no elemento<name>
. - Crie a VM.
- Se estiver a utilizar o modo SR-IOV, depois de iniciar a VM, defina o seguinte nas funções virtuais (VFs) utilizadas:
- Defina o spoofcheck como desligado.
ip link set eth1 vf 0 spoofchk off
- Defina o modo fidedigno como ligado.
ip link set dev eth1 vf 0 trust on
- Defina a VLAN, se necessário.
ip link set eth1 vf 0 vlan 3500
Nota: O passo de configuração das funções virtuais não é aplicável para o modo OpenVSwitch (OVS). - Defina o spoofcheck como desligado.
- Aceda à consola na VM.
virsh list Id Name State ---------------------------------------------------- 25 test_vcg running velocloud@KVMperf2$ virsh console 25 Connected to domain test_vcg Escape character is ^]
O cloud-init já inclui a chave de ativação, que foi gerada ao criar um novo Edge virtual no SD-WAN Orchestrator. O Edge virtual está configurado com as definições de configuração do ficheiro cloud-init. Isto irá configurar as interfaces assim que o Edge virtual for ligado. Assim que o Edge virtual estiver online, será ativado com o SD-WAN Orchestrator que utiliza a chave de ativação. O endereço IP e a chave de ativação do SD-WAN Orchestrator foram definidos no ficheiro cloud-init.