From cc8d41cd688468afddf50a2505cfcdeb22c2126a Mon Sep 17 00:00:00 2001
From: Daniel Langbein <daniel@systemli.org>
Date: Sun, 5 Nov 2023 17:15:01 +0100
Subject: [PATCH] periodically update docker container (Jinja-Compose)

---
 hosts/yodaNas/host-specific.nix | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/hosts/yodaNas/host-specific.nix b/hosts/yodaNas/host-specific.nix
index 43fb932..bdfe89c 100644
--- a/hosts/yodaNas/host-specific.nix
+++ b/hosts/yodaNas/host-specific.nix
@@ -121,12 +121,29 @@ in
     ];
   };
 
-  # Start Jinja-Compose project during boot.
-  # To few the log, run
+  # Update and start Jinja-Compose project
+  # during boot and after every 30 minutes.
+  # To view the log, run
   #   journalctl -b -u Jinja-Compose -f
   #
+  systemd.timers."Jinja-Compose" = {
+    wantedBy = [ "timers.target" ];
+    partOf = [ "Jinja-Compose.service" ];
+    timerConfig = {
+      OnBootSec = "0m";
+      OnUnitInactiveSec = "30m";
+
+      AccuracySec = "1m";
+      RandomizedDelaySec = "1m";
+    };
+  };
   systemd.services."Jinja-Compose" = {
-    description = "Start Jinja-Compose project";
+    description = "Update and start Jinja-Compose project";
+    serviceConfig = {
+      Type = "oneshot";
+      PrivateTmp = true;
+      User = "root";
+    };
     path = with pkgs; [
       # The `docker-compose` helper script is written in `bash` (!)
       bash
@@ -137,7 +154,5 @@ in
       /jc-config/docker-compose pull
       /jc-config/docker-compose up -d --wait
     '';
-    # Start after login.
-    wantedBy = [ "multi-user.target" ];
   };
 }