---
- name: install packages
  apt:
    state: latest
    pkg: 
      - libvirt-daemon
      - libvirt-daemon-system
      - qemu-system-x86
      - bridge-utils
      - ovmf
      - nvme-cli
      - lm-sensors
      - libhugetlbfs-bin
      - iotop
    install_recommends: no
    force_apt_get: yes
  become: yes

- name: copy config files, scripts and services
  copy:
    src: "{{ item }}"
    dest: "/{{ item }}"
    force: yes
    mode: preserve
  become: yes
  with_items:
    - etc/default/grub.d/
    - etc/modules-load.d/
    - etc/modprobe.d/
    - etc/network/interfaces.d/
    - etc/systemd/system/
    - etc/libvirt/hooks/
    - etc/udev/rules.d/
    - usr/local/bin/

- name: hugepages config
  lineinfile:
    state: present
    path: /etc/fstab
    regexp: "^hugetlbfs"
    line: "hugetlbfs /dev/hugepages hugetlbfs defaults 0 0"
  become: yes

- name: add user to grups
  user:
    name: plantroon
    groups: libvirt,kvm
    append: yes
  become: yes

- name: hugepages kernel params
  sysctl:
    state: present
    name: "{{ item.name }}"
    value: "{{ item.value }}"
    sysctl_file: /etc/sysctl.d/vfio.conf
    reload: yes
  become: yes
  with_items:
      #TOTAL_RAM/2048kB (size in proc/meminfo) 13824 for 32 gig
    - { name: 'vm.nr_hugepages', value: '32' }
    - { name: 'vm.stat_interval', value: '120' }
    - { name: 'kernel.watchdog', value: '0' }

- name: bridge networking kernel params
  sysctl:
    state: present
    name: "{{ item.name }}"
    value: "{{ item.value }}"
    sysctl_file: /etc/sysctl.d/bridge.conf
    reload: yes
  become: yes
  with_items:
    - { name: 'net.bridge.bridge-nf-call-arptables', value: '0' }
    - { name: 'net.bridge.bridge-nf-call-ip6tables', value: '0' }
    - { name: 'net.bridge.bridge-nf-call-iptables', value: '0' }

- name: enable tuning service
  systemd:
    name: kvm-tuning
    state: started
    enabled: yes
  become: yes

- name: enable restore_rift service
  systemd:
    name: restore_rift
    state: started
    enabled: yes
  become: yes

- name: update grub configs to reflect the above changes
  command: update-grub
  become: yes

- name: update initramfs
  command: "update-initramfs -u"
  become: yes