add the current state of the vmsetup

roles/create-vm/defaults/main.yml

@@ -0,0 +1,8 @@
+---
+image_url: https://cloud.debian.org/images/cloud/bullseye/latest/debian-11-nocloud-amd64.qcow2
+image_checksum: fd77540aa77f4f5ed3a817d530adfc52d142e93e61c73a85f15422a68c56dcbd39799e5bb2195e521f99a8fa301fa6bf07a478cd27bd380d4c7054901b4c8256
+base_image: "{{ image_url | urlsplit('path') | basename }}"
+images_dir: /var/vm/
+os: debian11
+vm_host_bridge_interface: eno1
+recreate: false

roles/create-vm/files/macgen.py

@@ -0,0 +1,17 @@
+#!/usr/bin/python
+# macgen.py script to generate a MAC address for guests on Xen
+# from https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/sect-Virtualization-Tips_and_tricks-Generating_a_new_unique_MAC_address.html
+# usefull to generate the mac for a virtual machine
+#
+# run
+# python2 macgen.py
+import random
+#
+def randomMAC():
+	mac = [ 0x00, 0x16, 0x3e,
+		random.randint(0x00, 0x7f),
+		random.randint(0x00, 0xff),
+		random.randint(0x00, 0xff) ]
+	return ':'.join(map(lambda x: "%02x" % x, mac))
+#
+print(randomMAC())

roles/create-vm/tasks/create_hostvars.yml

@@ -0,0 +1,29 @@
+---
+- name: create mac address
+  local_action:
+    module: command 
+    cmd: python macgen.py
+    chdir: "{{ role_path }}/files"
+  register: macgen
+  check_mode: false
+
+- name: create folder for new vm
+  local_action: 
+    module: file
+    path: "./host_vars/{{ vmname }}"
+    state: directory
+
+- name: create hostvars for new vm
+  local_action: 
+    module: template
+    src: vm_hostvars.j2
+    dest: ./host_vars/{{ vmname }}/vars.yml
+    #mode: 0666
+
+- name: add vm to hosts
+  local_action:
+    module: lineinfile
+    path: hosts
+    insertafter: '^\[vms\]'
+    line: "{{ vmname }}"
+

roles/create-vm/tasks/main.yml

@@ -0,0 +1,73 @@
+---
+- name: check if vm name exists in hostvars
+  local_action: stat path="host_vars/{{ vmname }}" 
+  register: register_name
+
+- name: Stop if host_vars exist
+  debug:
+    msg: "The file or directory exists"
+  failed_when: register_name.stat.exists
+  when: 
+    - register_name.stat.exists
+    - not recreate
+
+- name: add new vm to hostvars
+  include_tasks: create_hostvars.yml
+  when: not recreate
+
+- name: install libvirt and co
+  package:
+    name:
+      - libvirt-daemon-system 
+      - qemu-system
+      - virtinst
+      - qemu-utils
+      - libvirt-clients
+      - genisoimage
+    state: latest
+  become: true
+
+- name: Create images directory
+  file:
+    path: '{{ images_dir }}'
+    state: directory
+    owner: libvirt-qemu
+    group: libvirt-qemu
+  become: true
+
+- name: check for cloudimage
+  find:
+    age: -26w
+    path: '{{ images_dir }}'
+    pattern: '{{ base_image }}'
+  register: recent_cloudimage
+
+- debug: 
+    msg: "{{ recent_cloudimage.matched }}"
+
+- name: download cloud image template, if none found or to old
+  get_url:
+    url: '{{ image_url }}'
+    dest: '{{ images_dir }}'
+    checksum: 'sha512:{{ image_checksum }}'
+  when: not recent_cloudimage.matched
+
+- name: Create VM image from base image
+  command: qemu-img create -b {{ base_image }} -f qcow2 -F qcow2 {{ images_dir }}{{ vmname }}.img {{ image_capacity }}
+
+- name: Create user-data
+  template:
+    src: user-data.j2
+    dest: '{{ images_dir }}/user-data'
+
+- name: Create meta-data
+  template:
+    src: meta-data.j2
+    dest: '{{ images_dir }}/meta-data'
+
+- name: Create cloud-init configuration image
+  command: genisoimage -output {{ images_dir }}/{{ vmname }}-cidata.iso -V cidata -r -J {{ images_dir }}/user-data {{ images_dir }}/meta-data
+  become: true
+
+- name: Create the VM
+  command: virt-install --name={{ vmname }} --ram={{ ram }} --vcpus={{ vcpus }} --import --disk path={{ images_dir }}{{ vmname }}.img,format=qcow2 --disk path={{ images_dir }}{{ vmname }}-cidata.iso,device=cdrom --os-variant {{ os }} --network bridge=br0,model=virtio --graphics vnc,listen=0.0.0.0 --noautoconsole

roles/create-vm/templates/meta-data.j2

@@ -0,0 +1,2 @@
+# cloud-init metadata
+# file must exist, but can be empty

roles/create-vm/templates/user-data.j2

@@ -0,0 +1,11 @@
+# cloud-config
+locale: "de_DE.UTF-8"
+packages: 
+  - screen
+  - ripgrep
+  - ranger
+users:
+  - default:
+    ssh_authorized_keys:
+      - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEGThAm6K/gH+36Q616He7Hykd3HEMVMifsbSlXuw9j7 carl@work
+

roles/create-vm/templates/vm_hostvars.j2

@@ -0,0 +1,8 @@
+# autmomatically created via create-vm.yml
+---
+ansible_host:
+mac: '{{ macgen.stdout }}'
+cpu: '{{ vcpus }}'
+ram: '{{ ram }}'
+hdd: '{{image_capacity}}'
+server: '{{ ansible_hostname }}'

roles/setup-libvirt/defaults/main.yml

@@ -0,0 +1,2 @@
+---
+vm_host_bridge_interface: eno1

roles/setup-libvirt/tasks/main.yml

@@ -0,0 +1,63 @@
+---
+- name: install libvirt and tools
+  package:
+    name:
+      - libvirt-daemon-system 
+      - qemu-system
+    state: latest
+
+- name: Make sure config directory exists
+  file:
+    path: /etc/systemd/network
+    state: directory
+      
+- name: copy network config
+  template:
+    src: "{{ item }}"
+    dest: "/etc/systemd/network/"
+  with_items:
+    - "br0.netdev"
+    - "br0.network"
+    - "ethernet.network"
+
+- name: check if /etc/network/interfaces exists
+  stat: path="/etc/network/interfaces"
+  register: interfaces
+
+- name: disable /etc/network/interfaces
+  command: mv /etc/network/interfaces /etc/network/interfaces.disabled
+  when: interfaces.stat.exists
+
+- name: start and enable systemd-networkd
+  service: name=systemd-networkd state=restarted enabled=yes 
+
+- name: start and enable systemd-resolved
+  service: name=systemd-resolved state=restarted enabled=yes
+
+- name: Disable old network scripts and NetworkManager
+  service:
+    name: "{{ item }}"
+    enabled: no
+    state: stopped
+  with_items:
+    - networking
+    - network-manager
+    - NetworkManager
+  ignore_errors: true
+
+- name: Make a symlink for resolv.conf to use systemd-resolved
+  file:
+    dest: /etc/resolv.conf
+    src: /run/systemd/resolve/stub-resolv.conf
+
+- name: Create libvirt bridge config
+  copy:
+    dest: /etc/qemu/bridge.conf
+    content: "allow br0"
+
+- name: setuid for qemu-bridge-helper
+  file:
+    path: /usr/lib/qemu/qemu-bridge-helper
+    mode: 04755
+
+  

roles/setup-libvirt/templates/br0.netdev

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+[NetDev]
+Name=br0
+Kind=bridge

roles/setup-libvirt/templates/br0.network

@@ -0,0 +1,9 @@
+[Match]
+Name=br0
+
+[Link]
+MACAddress={{ mac }}
+
+[Network]
+DHCP=yes
+LinkLocalAddressing=ipv6

roles/setup-libvirt/templates/ethernet.network

@@ -0,0 +1,5 @@
+[Match]
+Name={{ vm_host_bridge_interface }}
+
+[Network]
+Bridge=br0