adhoc-deploy-kvm-guest.yml

---
# This Ad Hoc task will deploy a KVM virtual machine on existing KVM host
# If you define a bridge network, it has to exist first of course on the kvm host, defined by the ansible-role-kvm-host role
# Needed variables (per host or group inheritance):
# kvm_host: The kvm host on which to deploy the guest (string)
# kvm_guest_vcpus: number or cores to add to define the vm (string)
# kvm_guest_memory: available RAM for the guest (string, in MB)
# kvm_guest_disk_size: the qcow2 image size for the guest (string, in GB)
# kvm_guest_luks_encrypted: if we want to encrypt disk (boolean : True|False)
# kvm_guest_luks_passphrase: if we enabled it (see above) : the passphrase to crypt the disk
#  Account:
# kvm_guest_root_pass: the root account password to define by default
#  Network settings:
# kvm_guest_bridge: (boolean, True|False) : using an existing bridge on the kvm host
# kvm_host_bridge: the bridge name to use if above is enabled (string, like br0)
# kvm_guest_default_net: if kvm_guest_bridge is False, which other network we want to use, like 'default' (string)
# kvm_guest_arch: the architecture for the guest (string, like x86_64, aarch64, ppc64le, etc)
# kvm_guest_ip: ip address for the guest (string)
# kvm_guest_netmask: netmask for the guest (string)
# kvm_guest_gateway: gateway ip address for the guest (string)
# kvm_guest_nameserver: resolver ip address to use for the guest (string)
#
# Operating Systems
# 
# rhel_version: if defined at host/group level, use RHEL and that version (string) and not centos at all
# centos_version: which centos os version to deploy (string, like 8, 8-stream, etc) 


- hosts: "{{ init_kvm_guests }}"
  become: true
  gather_facts: false
  vars_prompt:
    - name: "init_kvm_guests"
      prompt: "[WARNING] KVM guests to be deployed with CentOS => "
      private: no

  tasks:
    - name: Checking Virtual Guest exists
      virt: 
        name: "{{ inventory_hostname }}" 
        state: running
      ignore_errors: yes
      no_log: True
      delegate_to: "{{ kvm_host }}"
      register: vm_exists

    - name: Creating kickstart to provision VM[s]
      template: 
        src: "../templates/kickstarts/kvm-guest-rhel{{ rhel_version }}-ks.j2" 
        dest: "/var/lib/libvirt/local-kickstarts/{{ inventory_hostname }}.cfg"
      delegate_to: "{{ kvm_host }}"
      when: rhel_version is defined
      tags:
        - ks

    - name: Creating kickstart to provision VM[s]
      template: 
        src: "../templates/kickstarts/kvm-guest-c{{ kvm_guest_distro_release }}-ks.j2" 
        dest: "/var/lib/libvirt/local-kickstarts/{{ inventory_hostname }}.cfg"
      delegate_to: "{{ kvm_host }}"
      when: rhel_version is not defined
      tags:
        - ks

    - name: Creating temporary virt-install command
      template: 
        src: ../templates/ansible-virt-install.j2 
        dest: "/var/lib/libvirt/virt-install-{{ inventory_hostname }}" 
        mode: 0750 
        owner: root 
        group: root
      delegate_to: "{{ kvm_host }}"
      tags:
        - ks

    - name: Provisining the Virtual Guest[s]
      command: "/var/lib/libvirt/virt-install-{{ inventory_hostname }}"
      when: vm_exists is failed
      delegate_to: "{{ kvm_host }}"

    - name: Waiting for sshd to be available on the deployed node
      wait_for: 
        port: 22 
        host: "{{ kvm_guest_ip }}"
        timeout: 1200 
      delegate_to: "{{ kvm_host }}"
      when: vm_exists is failed

    - name: Ensuring we remove the templatized virt-install script
      file:
        path: "/var/lib/libvirt/virt-install-{{ inventory_hostname }}"
        state: absent
      delegate_to: "{{ kvm_host }}"