The following commands will install the Linux packages required for VCL to manage a KVM host:
{panel}yum install libvirt virt-manager dejavu-lgc-sans-fonts bridge-utils libguestfs-tools -y /sbin/chkconfig libvirtd on
echo “Starting the libvirtd service...” /sbin/chkconfig libvirtd on /sbin/service libvirtd start{panel} The virt-manager package is optional. It is a graphical utility which is used to manage KVM and other hypervisors controlled via libvirt. The dejavu-lgc-sans-fonts package is usually necessary in order for virt-manager to render fonts correctly.
The following commands will configure networking to allow KVM guests to communicate. It configures a bridge named br0 on eth0, and br1 on eth1. When configured this way, the network names in the VM host profile should be set to br0 and br1. {panel}echo “Stopping the NetworkManager service...” chkconfig NetworkManager off 2>/dev/null service NetworkManager stop 2>/dev/null yum erase NetworkManager -y
cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF DEVICE=eth0 ONBOOT=yes BRIDGE=br0 NM_CONTROLLED=no EOF echo “Configured ifcfg-eth0:” cat /etc/sysconfig/network-scripts/ifcfg-eth0
cat > /etc/sysconfig/network-scripts/ifcfg-br0 <<EOF DEVICE=br0 TYPE=Bridge BOOTPROTO=dhcp ONBOOT=yes DELAY=0 NM_CONTROLLED=no EOF echo “Configured ifcfg-br0:” cat /etc/sysconfig/network-scripts/ifcfg-br0
cat > /etc/sysconfig/network-scripts/ifcfg-eth1 <<EOF DEVICE=eth1 ONBOOT=yes BRIDGE=br1 NM_CONTROLLED=no EOF echo “Configured ifcfg-eth1:” cat /etc/sysconfig/network-scripts/ifcfg-eth1
cat > /etc/sysconfig/network-scripts/ifcfg-br1 <<EOF DEVICE=br1 TYPE=Bridge BOOTPROTO=dhcp ONBOOT=yes DELAY=0 NM_CONTROLLED=no EOF echo “Configured ifcfg-br1:” cat /etc/sysconfig/network-scripts/ifcfg-br1
echo “Configuring eth0 bridge...” ifdown br0 2>/dev/null brctl delbr br0 2>/dev/null brctl addbr br0 brctl addif br0 eth0
echo “Configuring eth1 bridge...” ifdown br1 2>/dev/null brctl delbr br1 2>/dev/null brctl addbr br1 brctl addif br1 eth1
/sbin/chkconfig network on /sbin/service network restart{panel}
The following commands will add an NFS storage pool named images to the KVM host. The /images directory is exported via NFS from host 10.10.10.1. This directory is mounted as /mnt/kvm1 on the KVM host. An entry is added to /etc/fstab to ensure the directory is mounted if the KVM host is rebooted.
{panel}echo “Adding the images pool...” virsh pool-destroy images 2>/dev/null virsh pool-undefine images 2>/dev/null umount /images 2>/dev/null mkdir /images 2>/dev/null chmod -R 0755 /images echo ‘10.10.10.1:/mnt/kvm1 /images nfs vers=3,rsize=32768,wsize=32768,intr,rw,soft,bg 0 0’ >> /etc/fstab mount -a
virsh pool-define-as --name images --type dir --target /images virsh pool-autostart --pool images virsh pool-start images{panel}
The following commands will define a storage pool named local-vms pointing to the /vms directory on the local disk:
{panel}echo “Adding the local-vms pool...” virsh pool-destroy local-vms 2>/dev/null virsh pool-undefine local-vms 2>/dev/null mkdir /vms 2>/dev/null chmod -R 755 /vms virsh pool-define-as --name local-vms --type dir --target /vms virsh pool-autostart --pool local-vms virsh pool-start local-vms{panel}