nixpkgs/nixos/tests/k3s/etcd.nix
Robert Rose cc2790ff1e nixos/k3s: accept a list of extraFlags
Accept a list of strings for the extraFlags
option in addition to the previous single
string.
2024-07-16 08:20:32 +02:00

126 lines
3.7 KiB
Nix

# Tests K3s with Etcd backend
import ../make-test-python.nix (
{
pkgs,
lib,
k3s,
etcd,
...
}:
{
name = "${k3s.name}-etcd";
nodes = {
etcd =
{ ... }:
{
services.etcd = {
enable = true;
openFirewall = true;
listenClientUrls = [
"http://192.168.1.1:2379"
"http://127.0.0.1:2379"
];
listenPeerUrls = [ "http://192.168.1.1:2380" ];
initialAdvertisePeerUrls = [ "http://192.168.1.1:2380" ];
initialCluster = [ "etcd=http://192.168.1.1:2380" ];
};
networking = {
useDHCP = false;
defaultGateway = "192.168.1.1";
interfaces.eth1.ipv4.addresses = pkgs.lib.mkForce [
{
address = "192.168.1.1";
prefixLength = 24;
}
];
};
};
k3s =
{ pkgs, ... }:
{
environment.systemPackages = with pkgs; [ jq ];
# k3s uses enough resources the default vm fails.
virtualisation.memorySize = 1536;
virtualisation.diskSize = 4096;
services.k3s = {
enable = true;
role = "server";
extraFlags = [
"--datastore-endpoint=\"http://192.168.1.1:2379\""
"--disable coredns"
"--disable local-storage"
"--disable metrics-server"
"--disable servicelb"
"--disable traefik"
"--node-ip 192.168.1.2"
];
};
networking = {
firewall = {
allowedTCPPorts = [
2379
2380
6443
];
allowedUDPPorts = [ 8472 ];
};
useDHCP = false;
defaultGateway = "192.168.1.2";
interfaces.eth1.ipv4.addresses = pkgs.lib.mkForce [
{
address = "192.168.1.2";
prefixLength = 24;
}
];
};
};
};
testScript = ''
with subtest("should start etcd"):
etcd.start()
etcd.wait_for_unit("etcd.service")
with subtest("should wait for etcdctl endpoint status to succeed"):
etcd.wait_until_succeeds("etcdctl endpoint status")
with subtest("should start k3s"):
k3s.start()
k3s.wait_for_unit("k3s")
with subtest("should test if kubectl works"):
k3s.wait_until_succeeds("k3s kubectl get node")
with subtest("should wait for service account to show up; takes a sec"):
k3s.wait_until_succeeds("k3s kubectl get serviceaccount default")
with subtest("should create a sample secret object"):
k3s.succeed("k3s kubectl create secret generic nixossecret --from-literal thesecret=abacadabra")
with subtest("should check if secret is correct"):
k3s.wait_until_succeeds("[[ $(kubectl get secrets nixossecret -o json | jq -r .data.thesecret | base64 -d) == abacadabra ]]")
with subtest("should have a secret in database"):
etcd.wait_until_succeeds("[[ $(etcdctl get /registry/secrets/default/nixossecret | head -c1 | wc -c) -ne 0 ]]")
with subtest("should delete the secret"):
k3s.succeed("k3s kubectl delete secret nixossecret")
with subtest("should not have a secret in database"):
etcd.wait_until_fails("[[ $(etcdctl get /registry/secrets/default/nixossecret | head -c1 | wc -c) -ne 0 ]]")
with subtest("should shutdown k3s and etcd"):
k3s.shutdown()
etcd.shutdown()
'';
meta.maintainers = etcd.meta.maintainers ++ lib.teams.k3s.members;
}
)