Create KVM virtual machine

create-base-image-centos7.sh

qemu-img create -f qcow2 /var/lib/libvirt/images/base-image-centos7.qcow2 40G

virt-install \
  --virt-type kvm \
  --name base-image-centos7 \
  --vcpus 2 \
  --ram 4096 \
  --cdrom=/root/Downloads/CentOS-7-x86_64-Minimal-2003.iso  \
  --disk /var/lib/libvirt/images/base-image-centos7.qcow2,format=qcow2 \
  --network bridge=br0 \
  --autostart \
  --noautoconsole

vmcreate.sh

#!/bin/bash -

showhelp() {
  echo "Usage: ./vmcreate.sh VM_IP"
}

[ -z "$1" ] && showhelp && exit 0

VM_IP=$1
VM_NAME=${VM_IP//\./-}

echo "Creating VM: ${VM_NAME} IP: ${VM_IP}"
virt-clone --original base-image-centos7 --name ${VM_NAME} --file /var/lib/libvirt/images/${VM_NAME}.qcow2
virt-sysprep -d ${VM_NAME} --hostname ${VM_NAME}
virt-edit -d ${VM_NAME}  /etc/sysconfig/network-scripts/ifcfg-eth0  -e "s#IPADDR=".*"#IPADDR="${VM_IP}"#"
virsh start ${VM_NAME}
virsh autostart ${VM_NAME}