nixos/k3s: add initial k3s service

* nixos/k3s: simplify config expression

* nixos/k3s: add config assertions and trim unneeded bits

* nixos/k3s: add a test that k3s works; minor module improvements

This is a single-node test. Eventually we should also have a multi-node
test to verify the agent bit works, but that one's more involved.

* nixos/k3s: add option description

* nixos/k3s: add defaults for token/serveraddr

Now that the assertion enforces their presence, we dont' need to use the typesystem for it.

* nixos/k3s: remove unneeded sudo in test

* nixos/k3s: add to test list

1 files changed, 1 insertions, 0 deletions

diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 4f60892488a..5adfd6afd6a 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -146,6 +146,7 @@ in
   jellyfin = handleTest ./jellyfin.nix {};
   jenkins = handleTest ./jenkins.nix {};
   jirafeau = handleTest ./jirafeau.nix {};
+  k3s = handleTest ./k3s.nix {};
   kafka = handleTest ./kafka.nix {};
   keepalived = handleTest ./keepalived.nix {};
   kerberos = handleTest ./kerberos/default.nix {};