create-vm.yml

#*  This playbook creates a vm on a KVM host (via virt-install for now).
#* Currently only debian jessie on amd64 via preseed is supported, extending
#* should not be too difficult, but we had to start somewhere..
#*  The playbook is intended to be used by 'maestro', which gets the necessary
#* 'host' dict with the vm info from the knowledge base (reclass-inventory),
#* the 'new__hostname' parameter can be provided as the first argument after
#* the name of the play (See Maestro Examples below).
#*  Use '-a' to pass parameters to ansible (as '-e'). See ansible fetch for
#* details.
#*  The following arguments are mandatory:
#*   - 'new__hostname'
#*   - 'host' (dict)
#*  Maestro Examples:
#*   * Create a VM called <newhost> on <kvmhost>
#*     `$ maestro.sh -H <kvmhost> ansible-play create-vm "new__hostname=<newhost>"`

- hosts: host.KVM
  vars:
    new: '{{ host.resource[new__hostname] }}'
    new__system_disk_tmp: '{{ new.disk | selectattr("system") | first() }}'
    # TODO why does attr() not work as expected?
    new__system_disk:
      bus: '{{ host.virt.storage[new__system_disk_tmp.meta.pool].bus }}'
      cache: '{{ host.virt.storage[new__system_disk_tmp.meta.pool].cache }}'
      name: '{{ new__system_disk_tmp.name }}'
      path: '{{ new__system_disk_tmp.path }}'
      pool: '{{ new__system_disk_tmp.meta.pool }}'
      target: '{{ host.virt.storage[new__system_disk_tmp.meta.pool].path }}/{{ new__hostname }}-{{ new__system_disk_tmp.name }}'
    new__system_net: '{{ new.net | selectattr("primary") | first() }}'
    os__installer_files: '{{ os__installer_base[new.os.distro][new.os.codename][new.arch] }}'
  roles:
    - virt-install