How to use different VLANs for VPS

This article describes how to configure VMmanager provided that: 

• the network interface connected to the switch with configured trunk-port and VLAN is called "eth0";
• you have added VLAN with ID2 for virtual machines. 

Step 1. Add VLAN to every cluster node 

To add a VLAN to the cluster node: 

1. Create the file /etc/sysconfig/network-scripts/ifcfg-vlan2: 

   ONBOOT=yes
   
   TYPE=Ethernet
   
   VLAN=yes
   
   VLAN_NAME_TYPE=VLAN_PLUS_VID_NO_PAD
   
   DEVICE=vlan2
   
   PHYSDEV=eth0
   
   VLAN_ID=2
   
   BOOTPROTO=static
   
   NM_CONTROLLED=no

2. Restart the network service: 

   systemctl restart network

3. Check that "vlan2" has been added to the list of network interfaces:

   ip address

Step 2. Configure network and template in VMmanager

Network configuration 

1. Go to Cluster settings  → Networks → Add.
2. Enter any Name in VMmanager. Eg. "vmbr_vlan2". 
3. Check that you have selected "Network bridge" in Network type. 
4. Enter the name of the Bridged networking in the operating system. We recommend using the same name for Name and Bridged networking. 
5. Enable the option Connect interface. 
6. Specify "vlan2" in External interface. 

Template configuration 

To make virtual machines run in a separate VLAN, create a template associated with the required bridge:

1. Go to Cluster settings → VM templates  → Add. 
2. Select the Network (bridged networking) where virtual machines will run. Eg. "vmbr_vlan2". 
3. Enter any other parameters and click on Ok. 

Step 3. Create a virtual machine

Create a new virtual machine based on the new template:

1. Go to Management → Virtual machines → Add.
2. Select a VM template associated with the required network. Eg. "VM in VLAN2" uses the network vmbr_vlan2. To make the virtual machine use this network, select "VM in VLAN2" in VM template. 
3. Enter any other parameters and click on Ok.