nspawn

systemd nspawn machine container

usage

• define machine

# mymachine.yml
# mandatory: name, image
# name: name of the nspawn container and name of the controlling systemd service
name: testmachine
# image: a image name created with eg. `image(name='focal', template='focal')`
image: focal
# enabled: if false, service will not get started and will be stopped if running
enabled: true
# environment: dict of key,value pairs to be included in the target environment
environment: {}
# after creation of machine, a script and authorized_keys can be copied and executed
postinst:
  # default ssh keys string authorized for root and <userid>
  # will be created at /tmp/authorized_keys for usage in postinst
  authorized_keys: ""
# additional or overriding nspawn settings
nspawn:
  Exec: {}
  Files: {}
  Network: {}

• create image, start machine

{% from "systemd/nspawn/lib.sls" import volume, image, machine %}
include:
  - systemd.nspawn

# make mkosi focal image
{{ image(name='focal', template='focal') }}

# create test machine
{% import_yaml "mymachine.yml" as definition %}
{{ machine(definition) }}