hosts: rearrange modules a bit

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
2024-05-27 19:33:11 +05:30
parent ed71d6459c
commit 856d49ee10
19 changed files with 299 additions and 381 deletions
--- a/hosts/vault-agent.nix
+++ b/hosts/vault-agent.nix
@@ -0,0 +1,106 @@
+#Taken from https://github.com/MagicRB/dotfiles/blob/master/nix/nixos-modules/vault-agent.nix
+{ config, lib, pkgs, ... }:
+with lib;
+let
+  cfg = config.services.vault-agent;
+  json = pkgs.formats.json { };
+in
+{
+  options = {
+    services.vault-agent = {
+      enable = mkEnableOption "Vault Agent";
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.vault;
+        description = ''
+          The package used for the vault agent
+        '';
+      };
+
+      settings = mkOption {
+        type = json.type;
+        default = { };
+        description = ''
+          Settings for the agent
+        '';
+      };
+
+      secretsDir = mkOption {
+        type = types.nullOr types.path;
+        default = "/var/secrets";
+        description = ''
+          Vault secrets directory;
+        '';
+      };
+
+      userName = mkOption {
+        type = types.str;
+        default = "vault-agent";
+        description = "Username for the service";
+      };
+
+      groupName = mkOption {
+        type = types.str;
+        default = "vault-agent";
+        description = "Vault-Agent Group Name";
+      };
+
+      uid = mkOption {
+        type = types.int;
+        default = 1985;
+      };
+
+      gid = mkOption {
+        type = types.int;
+        default = 1985;
+      };
+
+    };
+  };
+
+  config = mkIf cfg.enable
+    ({
+      users = {
+        users = {
+          "${cfg.userName}" = {
+            group = cfg.groupName;
+            uid = cfg.uid;
+            isSystemUser = true;
+            description = "Vault-Agent User";
+          };
+        };
+        groups = {
+          "${cfg.groupName}" = {
+            gid = cfg.gid;
+          };
+        };
+      };
+      systemd.tmpfiles.rules = mkIf (cfg.secretsDir != null) [
+        "d ${cfg.secretsDir} 6755 vault-agent ${cfg.groupName} 0"
+      ];
+      systemd.services.vault-agent = {
+        description = "Vault Agent";
+        wantedBy = [ "multi-user.target" ];
+        wants = [ "network-online.target" ];
+        after = [ "network-online.target" ];
+        path = (with pkgs; [
+          glibc
+        ]);
+        serviceConfig = {
+          User = cfg.userName;
+          Group = cfg.groupName;
+          ExecReload = "${pkgs.busybox}/bin/kill -HUP $MAINPID";
+          ExecStart = "${cfg.package}/bin/vault agent -config=${json.generate "vault.json" cfg.settings}";
+          KillMode = "process";
+          KillSignal = "SIGINT";
+          Restart = "on-failure";
+          TimeoutStopSec = "30s";
+          RestartSec = 2;
+          ConfigurationDirectory = "vault-agent";
+          ConfigurationDirectoryMode = "0600";
+        };
+      };
+    });
+}
+