libvirt

Install and configure libvirt on Fedora.

This role allows users to run virtual machines in userspace. It also configures Kernel same-page Merging (KSM).

Requirements

Your computer must have enough hardware resources to support running virtual machines. You might also have to enable virtualization in your computer's BIOS.

Role Variables

name	description	type	default
ksm_max_kernel_pages	The maximum number of unswappable kernel pages which may be allocated by ksm (0 for unlimited)	int	0
ksm_monitor_interval	How long ksmtuned should sleep between tuning adjustments	seconds	60
ksm_npages_boost	Added to the npages value, when free memory is less than thres	int	300
ksm_npages_decay	The value given is subtracted from the npages value when free memory is greater than thres	int	-50
ksm_npages_min	The lower limit for the npages value	int	64
ksm_npages_max	The upper limit for the npages value	int	1250
ksm_sleep_msec	Millisecond sleep between ksm scans for 16Gb server. Smaller servers sleep more, bigger sleep less.	milliseconds	10
ksm_thres_coef	The RAM percentage to be calculated in parameter thres	int	20
ksm_thres_const	If this is a low memory system, and the thres value is less than KSM_THRES_CONST, then reset thres value to KSM_THRES_CONST value	int	2048
libvirt_pool_name	Default pool's name	string	default
libvirt_pool_dir	Path to default pool directory	directory path	"{{ ansible_user_dir }}/VirtualMachines"

Example Playbook

- hosts: workstations
  tasks:
  - import_role:
      name: libvirt
    vars:
      libvirt_pool_name: default
      libvirt_pool_dir: "{{ ansible_user_dir }}/VirtualMachines"

License

MIT