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---
xen_vm_creator_install_genconfdrv: true
# vm parameters
xen_vm_creator_vm_defaults:
hostname: ""
mem: 256
maxmem: 1024
vcpus: 1
max_vcpus: 4
disk_size: 4
image: "{{ xen_vm_creator_image }}"
xen_vm_creator_interface_prefix: "eth"
xen_vm_creator_mac_prefix: "00:16:3e"
xen_vm_creator_iso_dir: /path/to/safe/isodir/
xen_vm_creator_image: /path/to/linux-iamge.qcow2
xen_vm_creator_lvm_vg_name: ""
xen_vm_creator_xen_config_dir: /etc/xen/
xen_vm_creator_iso_file_marker: "### will be removed after install ###"
xen_vm_creator_vms: []

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---
dependencies: []
galaxy_info:
role_name: xen-vm-creator
author: Sebastian Lohff
description:
license: apache
min_ansible_version: 2.4
platforms:
- name: Debian
versions:
- all
- name: Ubuntu
versions:
- all
galaxy_tags:
- virtualization
- xen

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---
- name: Just... fail
fail:
msg: Cannot create base image - not implemented

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---
- name: Install prerequisites
apt:
name:
- genisoimage
- qemu-utils
- python3-pip
- git
- name: Install genconfdrv
pip:
name: git+https://git.someserver.de/seba/genconfdrv/
executable: pip3
when: xen_vm_creator_install_genconfdrv

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---
- name: Wubwub
debug:
msg: Well, let's get crackin'
- name: Check if image exists
stat:
path: "{{ vm.image }}"
register: xen_vm_creator_image_path_check
failed_when: not xen_vm_creator_image_path_check.stat.exists
# create boot iso
- name: Create config drive
shell: |
genconfdrv -H {{ vm.hostname }} -o {{ xen_vm_creator_iso_dir }}/{{ vm.hostname}}.iso \
{% if user_list %}-a {% for user in user_list %}{{ user | quote }} {% endfor %}{% endif %}\
{% if net_list %}-i {% for net in net_list %}{{ net | quote }} {% endfor %}{% endif %}
vars:
user_def: "{{ vm.user | default(xen_vm_creator_default_user) }}"
user_list: "[{% for user in user_def %}'{{ user.name }}:{{ user.key }}',{% endfor %}]"
net_list: |
[
{% for net in vm.networks %}
{% set iface = net.interface|default(xen_vm_creator_interface_prefix + loop.index0|string) %}
'{{ iface }}'
{% if net.address|default %}
':{{ net.address }}'
{% if net.gateway|default %}
':{{ net.gateway }}'
{% endif %}
{% endif %}
,
{% if net.address6|default %}
'{{ iface }};{{ net.address6 }}'
{% if net.gateway6|default %}
';{{ net.gateway6 }}'
{% endif %}
,
{% endif %}
{% endfor %}
]
# push config
- name: Write VM config
template:
src: xen-vm.cfg.j2
dest: "{{ xen_vm_creator_xen_config_dir }}/{{ vm.hostname }}.cfg"
vars:
iso_path: "{{ xen_vm_creator_iso_dir }}/{{ vm.hostname}}.iso"
storage_path: "phy:/dev/{{ xen_vm_creator_lvm_vg_name }}/{{ vm.hostname }}-disk"
# provision storage
# --> lvm: create lv (lvol size/vg/lv)
- name: Create LVM volume
lvol:
lv: "{{ vm.hostname }}-disk"
vg: "{{ xen_vm_creator_lvm_vg_name }}"
size: "{{ vm.disk_size }}g"
# qemu-img for image
- name: Write image
shell: "qemu-img convert -O raw {{ xen_vm_creator_image|quote }} /dev/{{ xen_vm_creator_lvm_vg_name }}/{{ vm.hostname }}-disk"
# start vm
- name: Start VM
shell: "xl create {{ xen_vm_creator_xen_config_dir }}/{{ vm.hostname }}.cfg"
- name: Wait 10 seconds for VM to be started
wait_for:
timeout: 10
# remove iso from config
- name: Remove config drive from VM config
lineinfile:
path: "{{ xen_vm_creator_xen_config_dir }}/{{ vm.hostname }}.cfg"
state: absent
regexp: "^.*{{ xen_vm_creator_iso_file_marker }}$"

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---
- name: Set variables
changed_when: false
set_fact:
vm: "{{ xen_vm_creator_vm_defaults|combine(xen_vm_creator_vm) }}"
- name: VM that is to be installed
debug:
var: vm
- name: Check if vm needs installation
shell: >
test -x {{ xen_vm_creator_xen_config_dir }}/{{ vm.hostname }}.cfg ||
test -e {{ xen_vm_creator_xen_config_dir }}/auto/{{ vm.hostname }}.cfg ||
(lvs {{xen_vm_creator_lvm_vg_name}}/{{ vm.hostname }}-disk >/dev/null || false) ||
(lvs {{xen_vm_creator_lvm_vg_name}}/{{ vm.hostname }} >/dev/null || false)
changed_when: false
failed_when: xen_vm_creator_is_installed.rc not in [0, 1]
register: xen_vm_creator_is_installed
- name: Install vm
include: install-vm.yml
when: xen_vm_creator_is_installed.rc == 1

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---
# prereqs
- name: Install genconfdrv
include: install-genconfdrv.yml
when: xen_vm_creator_install_genconfdrv
- include: install-vms.yml
with_items: "{{ xen_vm_creator_vms }}"
loop_control:
loop_var: xen_vm_creator_vm

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# Config for {{ vm.hostname }}
# Created on: {{ ansible_date_time.date }} {{ ansible_date_time.time }} {{ ansible_date_time.tz_offset }}
name = '{{ vm.hostname }}'
memory = '{{ vm.mem }}'
maxmem = '{{ vm.maxmem }}'
vcpus = {{ vm.vcpus }}
maxvcpus = {{ vm.max_vcpus }}
disk = [
'{{ storage_path }},xvda,w',
'file:{{ iso_path }},xvdb:cdrom,r', # --> {{ xen_vm_creator_iso_file_marker }}
]
vif = [
{% for network in vm.networks %}
{% set default_mac = '%s:%02x:%02x:%02x' % (xen_vm_creator_mac_prefix, range(0,256)|random, range(0,256)|random, range(0,256)|random) %}
'mac={{ network.mac|default(default_mac) }},bridge={{ network.bridge }}',
{% endfor %}
]
acpi = '1'
apic = '1'
builder = 'hvm'
keymap = 'de'
serial = 'pty'
device_model_version = 'qemu-xen'
device_model_override = '/usr/bin/qemu-system-x86_64'
on_crash = 'destroy'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_shutdown = 'destroy'