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Sebastian Lohff 7 months ago
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8ab2b6797e
10 changed files with 407 additions and 0 deletions
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  2. 202
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      LICENSE
  3. 22
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      defaults/main.yml
  4. 19
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      meta/main.yml
  5. 4
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      tasks/create-base-image.yml
  6. 14
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      tasks/install-genconfdrv.yml
  7. 78
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      tasks/install-vm.yml
  8. 23
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      tasks/install-vms.yml
  9. 10
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  10. 32
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.gitignore View File

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+*.swp
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+*.swo
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+*.retry

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LICENSE View File

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+

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defaults/main.yml View File

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

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meta/main.yml View File

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

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tasks/create-base-image.yml View File

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

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tasks/install-genconfdrv.yml View File

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

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tasks/install-vm.yml View File

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

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tasks/install-vms.yml View File

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

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tasks/main.yml View File

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

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templates/xen-vm.cfg.j2 View File

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

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