From af160ab15635a5c38ec69117d3798e537a286bdb Mon Sep 17 00:00:00 2001
From: Dmitriy Pleshevskiy <dmitriy@pleshevski.ru>
Date: Tue, 14 Mar 2023 23:11:42 +0300
Subject: [PATCH] docker-stack: add systemd timer

---
 machines/modules/docker-stack.nix | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/machines/modules/docker-stack.nix b/machines/modules/docker-stack.nix
index f355e44..2608d43 100644
--- a/machines/modules/docker-stack.nix
+++ b/machines/modules/docker-stack.nix
@@ -168,6 +168,15 @@ let
           > $out
       '';
 
+  mkStackTimer = stackName: {
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      OnBootSec = "5m";
+      OnUnitActiveSec = "5m";
+      Unit = "docker-stack-${stackName}.service";
+    };
+  };
+
   mkStackService = stackName: stack:
     let
       escapedStackName = lib.escapeShellArg stackName;
@@ -175,6 +184,7 @@ let
     in
     {
       description = "Deploy ${escapedStackName} stack";
+      enable = true;
 
       after = [ "docker.service" "docker.socket" ];
       environment = proxyEnv;
@@ -200,7 +210,8 @@ in
     description = lib.mdDoc "Docker stacks to deploy using systemd services.";
   };
 
-  config = lib.mkIf (cfg.stacks != { }) {
+  config = lib.mkIfattrNames (cfg.stacks != { }) {
+    systemd.timers = lib.mapAttrs' (n: v: lib.nameValuePair "docker-stack-${n}" (mkStackTimer n)) cfg.stacks;
     systemd.services = lib.mapAttrs' (n: v: lib.nameValuePair "docker-stack-${n}" (mkStackService n v)) cfg.stacks;
 
     virtualisation.docker = {