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authorMax Audron <audron@cocaine.farm>2023-08-11 16:51:35 +0200
committerMax Audron <audron@cocaine.farm>2023-08-11 16:51:35 +0200
commit6e1d5200ced185ec7823d65a3877b710b4719130 (patch)
treee31c6c1f9e5675e858b914b66141571f4b611308 /modules/k3s
parentcleanup phaenn config (diff)
refactor k8s module
Diffstat (limited to 'modules/k3s')
-rw-r--r--modules/k3s/default.nix128
1 files changed, 0 insertions, 128 deletions
diff --git a/modules/k3s/default.nix b/modules/k3s/default.nix
deleted file mode 100644
index e2aa335..0000000
--- a/modules/k3s/default.nix
+++ /dev/null
@@ -1,128 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-let
- cfg = config.services.k3s;
-in
-{
- # interface
- options.services.k3s = {
- enable = mkEnableOption "k3s";
-
- package = mkOption {
- type = types.package;
- default = pkgs.k3s;
- defaultText = literalExpression "pkgs.k3s";
- description = "Package that should be used for k3s";
- };
-
- role = mkOption {
- description = ''
- Whether k3s should run as a server or agent.
- Note that the server, by default, also runs as an agent.
- '';
- default = "server";
- type = types.enum [ "server" "agent" ];
- };
-
- serverAddr = mkOption {
- type = types.str;
- description = "The k3s server to connect to. This option only makes sense for an agent.";
- example = "https://10.0.0.10:6443";
- default = "";
- };
-
- token = mkOption {
- type = types.str;
- description = ''
- The k3s token to use when connecting to the server. This option only makes sense for an agent.
- WARNING: This option will expose store your token unencrypted world-readable in the nix store.
- If this is undesired use the tokenFile option instead.
- '';
- default = "";
- };
-
- tokenFile = mkOption {
- type = types.nullOr types.path;
- description = "File path containing k3s token to use when connecting to the server. This option only makes sense for an agent.";
- default = null;
- };
-
- docker = mkOption {
- type = types.bool;
- default = false;
- description = "Use docker to run containers rather than the built-in containerd.";
- };
-
- extraFlags = mkOption {
- description = "Extra flags to pass to the k3s command.";
- type = types.str;
- default = "";
- example = "--no-deploy traefik --cluster-cidr 10.24.0.0/16";
- };
-
- disableAgent = mkOption {
- type = types.bool;
- default = false;
- description = "Only run the server. This option only makes sense for a server.";
- };
-
- configPath = mkOption {
- type = types.nullOr types.path;
- default = null;
- description = "File path containing the k3s YAML config. This is useful when the config is generated (for example on boot).";
- };
- };
-
- # implementation
-
- config = mkIf cfg.enable {
- assertions = [
- {
- assertion = cfg.role == "agent" -> (cfg.configPath != null || cfg.serverAddr != "");
- message = "serverAddr or configPath (with 'server' key) should be set if role is 'agent'";
- }
- {
- assertion = cfg.role == "agent" -> cfg.configPath != null || cfg.tokenFile != null || cfg.token != "";
- message = "token or tokenFile or configPath (with 'token' or 'token-file' keys) should be set if role is 'agent'";
- }
- ];
-
- virtualisation.docker = mkIf cfg.docker {
- enable = mkDefault true;
- };
-
- environment.systemPackages = [ config.services.k3s.package ];
-
- systemd.services.k3s = {
- description = "k3s service";
- after = [ "network.service" "firewall.service" ] ++ (optional cfg.docker "docker.service");
- wants = [ "network.service" "firewall.service" ];
- wantedBy = [ "multi-user.target" ];
- path = optional config.boot.zfs.enabled config.boot.zfs.package;
- serviceConfig = {
- # See: https://github.com/rancher/k3s/blob/dddbd16305284ae4bd14c0aade892412310d7edc/install.sh#L197
- Type = if cfg.role == "agent" then "exec" else "notify";
- KillMode = "process";
- Delegate = "yes";
- Restart = "always";
- RestartSec = "5s";
- LimitNOFILE = 1048576;
- LimitNPROC = "infinity";
- LimitCORE = "infinity";
- TasksMax = "infinity";
- ExecStart = concatStringsSep " \\\n " (
- [
- "${cfg.package}/bin/k3s ${cfg.role}"
- ] ++ (optional cfg.docker "--docker")
- ++ (optional cfg.disableAgent "--disable-agent")
- ++ (optional (cfg.serverAddr != "") "--server ${cfg.serverAddr}")
- ++ (optional (cfg.token != "") "--token ${cfg.token}")
- ++ (optional (cfg.tokenFile != null) "--token-file ${cfg.tokenFile}")
- ++ (optional (cfg.configPath != null) "--config ${cfg.configPath}")
- ++ [ cfg.extraFlags ]
- );
- };
- };
- };
-}