Qemu/kvm templates

These are just some notes I was keeping around for installing a KVM machine that can be used as a template for creating new KVM instances. All virtual machines are installed inside an LVM volume, so first we need to create a new volume for the machine, e. The below command would create a new system called debian-squeeze with Mb of memory and 1 virtual cpu. A VNC session will be created as well for the new system, so that you can follow the install process.

A long time ago, in a galaxy far far away when I started with openvz I followed this tutorial for Debian template creation. This procedure tries to generalize the template. Some of these elements include:. This method must work in others virtualization systems: vmware, virtualbox, etc. This is only useful if you installed SSH. Have a look to the Installing Puppet master and client in the same host.

The Debian way previous post for more info. We have comprehensive tutorials on:. Additionally, ensure that the libvirtd daemon is running and is enable to automatically kick on bootup. Before we get to creating a template, we need to, first of all, have an installation instance.

Next, use the virt-install command to create a CentOS 8 virtual machine as shown. This launches the virtual machine instance. You can confirm this by heading over to the virt-manager and opening the console window as shown. What you can see is the default welcome page for the installer. Be sure to complete the installation to the very end.

Install the prerequisite packages that you feel are essential to get started with. This may be different for your case.

If you intend to deploy your template on a cloud platform, install the cloud-init packages as shown. Once you are done, be sure to power off your virtual machine and clean up the VM template image as shown.