This service generates the system.stateVersion of the nixos installation
automatically.
Possible values: system.stateVersion
Usage
The following configuration will set stateVersion for all machines:
inventory.instances = {
state-version = {
module = {
name = "state-version";
input = "clan";
};
roles.default.tags.all = { };
};
Migration
If you are already setting system.stateVersion, either let the automatic
generation happen, or trigger the generation manually for the machine. The
service will take the specified version, if one is already supplied through the
config.
To manually generate the version for a specified machine run:
clan vars generate [MACHINE]
If the setting was already set, you can then remove system.stateVersion from
your machine configuration. For new machines, just import the service as shown
above.