Systemd

Reports systemd availability, version, default target, and failed units.

Trait Path

systemd

Fields

Path	Type	Example	Description
`systemd.available`	boolean	`true`	Whether systemd is available
`systemd.version`	string	`"249"`	systemd version number
`systemd.default_target`	string	`"multi-user.target"`	Default boot target
`systemd.failed_units`	array of strings	`["nginx.service"]`	Names of failed units
`systemd.failed_count`	integer	`1`	Number of failed units

Collection Method

First checks if systemctl is available via which. If not available, returns defaults with available: false. Otherwise runs:

systemctl --version and extracts the version number from the first line
systemctl get-default for the default boot target
systemctl --state=failed list-units --no-legend --plain to enumerate failed unit names

Using in When Expressions

- name: enable-service
  type: service
  service: nginx
  state: enabled
  when: "os_family('debian')"

Using in Templates

- name: systemd-report
  type: file
  target_path: /var/lib/vigo/systemd.txt
  content: |
    systemd {{ .Traits.systemd.version }}
    Default target: {{ .Traits.systemd.default_target }}
    Failed units: {{ .Traits.systemd.failed_count }}