Virtual Environment Provision


Provision Virtual Host

In the following example, we create a lightweight KVM host environment.

Hardware Settings

  • x86 server
  • Support Intel® Virtualization Technology and be turned on in BIOS

System Settings

  • RedHat/CentOS 6.0 or higher, with kvm support installed
  • Firewall is off
  • selinux is off
  • Host and guest OS is in same subnet
  • Create a seperated LVM pool for disk allocation
  • CloudBoot server could ssh to host using certificate (instead of password)

Host Template

Cloudboot provides a sample templage named centos6.7-kvmserver for user referance, as shown below:

## create network bridge br0
# cat > /etc/sysconfig/network-scripts/ifcfg-br0 <<EOF
DEVICE=br0
BOOTPROTO=none
IPADDR=$IPADDR
NETMASK=$NETMASK
ONBOOT=yes
TYPE=Ethernet
NM_CONTROLLED=no
TYPE=Bridge
DELAY=0
EOF

# cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
TYPE=Ethernet
NM_CONTROLLED=no
TYPE=Ethernet
BRIDGE=br0
EOF

### create LVM Pool named guest_images_lvm，edit /opt/cloudboot/etc/cloudboot-server/cloudboot-server.conf to change its settings
virsh pool-define-as guest_images_lvm logical - - - VolGroup0 /dev/VolGroup0
virsh pool-autostart guest_images_lvm
virsh pool-start guest_images_lvm

### ssh channel from cloudboot server to host
test -f /opt/cloudboot/root/.ssh/id_rsa || ssh-keygen -t rsa -f /opt/cloudboot/root/.ssh/id_rsa -C '' -N ''
chmod 600 /opt/cloudboot/root/.ssh/*
ssh-copy-id -i /opt/cloudboot/root/.ssh/id_rsa.pub [host_ip_address]

Virtual Machine Provision

  • User could create virtual machine directly from CloudBoot UI after provision and refresh the host machine. It also support day 2 operation like start/stop/dicommission.
  • While create a new virtual machine, user could specify hardware setting such as nubmer of CPU, memory, disk size, etc.
  • OS provision settings for virtual machine is the same as the one for physical machines.

Note

CloudBoot use MAC address as virtual machine’s serial number.