ansible-roles/library/centos/roles/kvm/tasks/main.yml

---
- name: Install the virtualization packages
  yum: name={{ virtualization_packages }} state={{ virtualization_pkg_state }}
  tags: kvm

- name: Enable libvirtd when needed
  service: name={{ item }} state=started enabled=yes
  with_items: '{{ virtualization_services_to_be_enabled }}'
  when: virtualization_enable_libvirtd | bool
  tags: [ 'kvm', 'libvirt' ]
    
- name: Disable nfs
  service: name={{ item }} state=stopped enabled=no
  with_items: '{{ virtualization_nfs_services_to_be_disabled }}'
  when: virtualization_disable_nfs | bool
  tags: [ 'kvm', 'nfs' ]
    
- name: Disable iscsi
  service: name={{ item }} state=stopped enabled=no
  with_items: '{{ virtualization_iscsi_services_to_be_disabled }}'
  when: virtualization_disable_iscsi | bool
  tags: [ 'kvm' , 'iscsi' ]
    
- name: Set some kernel parameters needed by virtualization. IP forwarding for example, if we need NAT
  sysctl: name={{ item.name }} state={{ item.state }} value={{ item.value }} sysctl_file=/etc/sysctl.d/90-virtualization.conf reload=yes sysctl_set=yes
  with_items: '{{ virtualization_sysctl_tuning }}'
  tags: kvm

- name: Collect the ISO boot images
  get_url: url="{{ item }}" dest={{ virtualization_os_boot_dir }}/
  with_items: '{{ virtualization_os_boot_images }}'
  tags: [ 'kvm', 'iso_images' ]

- name: Create the LVM PV
  command: pvcreate {{ item }}
  with_items: '{{ virtualization_kvm_lvm_pv }}'
  when: virtualization_kvm_create_lvm_pv | bool
  tags: [ 'kvm', 'lvm_pv' ]

- name: Create the LVM VG to be used by the virtual guests
  lvg: vg={{ virtualization_kvm_lvm_vg }} pvs={{ item }}
  with_items: '{{ virtualization_kvm_lvm_pv }}'
  when: virtualization_kvm_create_lvm_vg | bool
  tags: [ 'kvm', 'lvm_vg' ]

- name: Fix the /dev/kvm permissions
  file: dest=/dev/kvm owner=root group=kvm mode=0660
  tags: kvm